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GC-MS</title> <meta name="description" content="Search results for: GC-MS"> <meta name="keywords" content="GC-MS"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="GC-MS"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 45</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: GC-MS</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> The Improvement of Turbulent Heat Flux Parameterizations in Tropical GCMs Simulations Using Low Wind Speed Excess Resistance Parameter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20O.%20Adeniyi">M. O. Adeniyi</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20T.%20Akinnubi"> R. T. Akinnubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The parameterization of turbulent heat fluxes is needed for modeling land-atmosphere interactions in Global Climate Models (GCMs). However, current GCMs still have difficulties with producing reliable turbulent heat fluxes for humid tropical regions, which may be due to inadequate parameterization of the roughness lengths for momentum (z0m) and heat (z0h) transfer. These roughness lengths are usually expressed in term of excess resistance factor (κB^(-1)), and this factor is used to account for different resistances for momentum and heat transfers. In this paper, a more appropriate excess resistance factor (〖 κB〗^(-1)) suitable for low wind speed condition was developed and incorporated into the aerodynamic resistance approach (ARA) in the GCMs. Also, the performance of various standard GCMs κB^(-1) schemes developed for high wind speed conditions were assessed. Based on the in-situ surface heat fluxes and profile measurements of wind speed and temperature from Nigeria Micrometeorological Experimental site (NIMEX), new κB^(-1) was derived through application of the Monin–Obukhov similarity theory and Brutsaert theoretical model for heat transfer. Turbulent flux parameterizations with this new formula provides better estimates of heat fluxes when compared with others estimated using existing GCMs κB^(-1) schemes. The derived κB^(-1) MBE and RMSE in the parameterized QH ranged from -1.15 to – 5.10 Wm-2 and 10.01 to 23.47 Wm-2, while that of QE ranged from - 8.02 to 6.11 Wm-2 and 14.01 to 18.11 Wm-2 respectively. The derived 〖 κB〗^(-1) gave better estimates of QH than QE during daytime. The derived 〖 κB〗^(-1)=6.66〖 Re〗_*^0.02-5.47, where Re_* is the Reynolds number. The derived κB^(-1) scheme which corrects a well documented large overestimation of turbulent heat fluxes is therefore, recommended for most regional models within the tropic where low wind speed is prevalent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=humid" title="humid">humid</a>, <a href="https://publications.waset.org/abstracts/search?q=tropic" title=" tropic"> tropic</a>, <a href="https://publications.waset.org/abstracts/search?q=excess%20resistance%20factor" title=" excess resistance factor"> excess resistance factor</a>, <a href="https://publications.waset.org/abstracts/search?q=overestimation" title=" overestimation"> overestimation</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulent%20heat%20fluxes" title=" turbulent heat fluxes"> turbulent heat fluxes</a> </p> <a href="https://publications.waset.org/abstracts/41696/the-improvement-of-turbulent-heat-flux-parameterizations-in-tropical-gcms-simulations-using-low-wind-speed-excess-resistance-parameter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41696.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">202</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Evaluation of Serine and Branched Chain Amino Acid Levels in Depression and the Beneficial Effects of Exercise in Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20A.%20Doss">V. A. Doss</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Sowndarya"> R. Sowndarya</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Juila%20Rose%20Mary"> K. Juila Rose Mary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: Amino acid neurotransmitter system dysfunction plays a major role in the pathophysiology of depression. The objective of the present study was to identify the amino acids as possible metabolite biomarkers for depression using GCMS (Gas Chromatography Mass Spectrometry) before and after exercise regimen in brain samples of depression induced animal models. Methods: Depression-like behaviour was induced by Chronic Unpredictable mild stress (CUMS). Severity of depression was measured by forced swim test (FST) and sucrose consumption test (SCT). Swimming protocol was followed for 4 weeks of exercise treatment. Brain obtained from depressed and exercise treated rats were used for the metabolite analysis by GCMS. Subsequent statistical analysis obtained by ANOVA followed by post hoc test revealed significant metabolic changes. Results: Amino acids such as alanine, glycine, serine, glutamate, homocysteine, proline and branched chain aminoacids (BCAs) Leucine, Isoleucine, Valine were determined in brain samples of control, depressed and exercised groups. Among these amino acids, the levels of D-Serine and branched chain amino acids were found to be decreased in depression induced rats. After four weeks of swimming exercise regimen, there were improvements in the levels of serine and Branched chain amino acids. Conclusion: We suggest that Serine and BCAs may be investigated as potential metabolite markers using GCMS and their beneficial metabolic changes in Exercise. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metabolomics" title="metabolomics">metabolomics</a>, <a href="https://publications.waset.org/abstracts/search?q=depression" title=" depression"> depression</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20swim%20test" title=" forced swim test"> forced swim test</a>, <a href="https://publications.waset.org/abstracts/search?q=exercise" title=" exercise"> exercise</a>, <a href="https://publications.waset.org/abstracts/search?q=amino%20acid%20metabolites" title=" amino acid metabolites"> amino acid metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=GCMS" title=" GCMS"> GCMS</a>, <a href="https://publications.waset.org/abstracts/search?q=biomarker" title=" biomarker"> biomarker</a> </p> <a href="https://publications.waset.org/abstracts/65816/evaluation-of-serine-and-branched-chain-amino-acid-levels-in-depression-and-the-beneficial-effects-of-exercise-in-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65816.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">326</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Potential Impact of Climate Change on Suspended Sediment Changes in Mekong River Basin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zuliziana%20Suif">Zuliziana Suif</a>, <a href="https://publications.waset.org/abstracts/search?q=Nordila%20Ahmad"> Nordila Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Sengheng%20Hul"> Sengheng Hul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper evaluates the impact of climate change on suspended sediment changes in the Mekong River Basin. In this study, the distributed process-based sediment transport model is used to examine the potential impact of future climate on suspended sediment dynamic changes in the Mekong River Basin. To this end, climate scenarios from two General Circulation Model (GCMs) were considered in the scenario analysis. The simulation results show that the sediment load and concentration shows 0.64% to 69% increase in the near future (2041-2050) and 2.5% to 95% in the far future (2090- 2099). As the projected climate change impact on sediment varies remarkably between the different climate models, the uncertainty should be taken into account in sediment management. Overall, the changes in sediment load and concentration can have a great implication for related sediment management. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=suspended%20sediment" title=" suspended sediment"> suspended sediment</a>, <a href="https://publications.waset.org/abstracts/search?q=Mekong%20River%20Basin" title=" Mekong River Basin"> Mekong River Basin</a>, <a href="https://publications.waset.org/abstracts/search?q=GCMs" title=" GCMs"> GCMs</a> </p> <a href="https://publications.waset.org/abstracts/67271/potential-impact-of-climate-change-on-suspended-sediment-changes-in-mekong-river-basin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67271.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">443</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Efficient Reduction of Organophosphate Pesticide from Fruits and Vegetables Using Cost Effective Neutralizer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Debjani%20Dasgupta">Debjani Dasgupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Aman%20Zalawadia"> Aman Zalawadia</a>, <a href="https://publications.waset.org/abstracts/search?q=Anuj%20Thapa"> Anuj Thapa</a>, <a href="https://publications.waset.org/abstracts/search?q=Pranjali%20Sing"> Pranjali Sing</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashish%20Dabade"> Ashish Dabade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Organophosphate group pesticides are common pesticide group, which gain entry into food product due to incomplete removal of pesticide residues. The current food industry raw material handling process is not sufficient to eliminate pesticide residues. A neutralizer was used to neutralize the residues of pesticide on Vitis vinifera (Grapes). The water based dilution of neutralizer was demonstrated on fruits like grapes. Analysis for pesticides in water wash and neutralizer wash was carried out using GCMS. Fruits washed with neutralizer exhibited 72.95% removal of pesticides compared with normal water wash method. An economical chemical neutralizer can be used to remove such residues in raw material handling at industrial scale with minor modification in process to achieve minimum pesticide entry into final food products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GCMS" title="GCMS">GCMS</a>, <a href="https://publications.waset.org/abstracts/search?q=organophosphate" title=" organophosphate"> organophosphate</a>, <a href="https://publications.waset.org/abstracts/search?q=raw%20material%20handling" title=" raw material handling"> raw material handling</a>, <a href="https://publications.waset.org/abstracts/search?q=Vitis%20vinifera" title=" Vitis vinifera"> Vitis vinifera</a>, <a href="https://publications.waset.org/abstracts/search?q=pesticide%20neutralizer" title=" pesticide neutralizer"> pesticide neutralizer</a> </p> <a href="https://publications.waset.org/abstracts/75453/efficient-reduction-of-organophosphate-pesticide-from-fruits-and-vegetables-using-cost-effective-neutralizer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75453.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">273</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Investigating Selected Traditional African Medicinal Plants for Anti-fibrotic Potential: Identification and Characterization of Bioactive Compounds Through Fourier-Transform Infrared Spectroscopy and Gas Chromatography-Mass Spectrometry Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20V.%20Manzane">G. V. Manzane</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20J.%20Modise"> S. J. Modise</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Uterine fibroids, also known as leiomyomas or myomas, are non-cancerous growths that develop in the muscular wall of the uterus during the reproductive years. The cause of uterine fibroids includes hormonal, genetic, growth factors, and extracellular matrix factors. Common symptoms of uterine fibroids include heavy and prolonged menstrual bleeding which can lead to a high risk of anemia, lower abdominal pains, pelvic pressure, infertility, and pregnancy loss. The growth of this tumor is a concern because of its negative impact on women’s health and the increase in their economic burden. Traditional medicinal plants have long been used in Africa for their potential therapeutic effects against various ailments. In this study, we aimed to identify and characterize bioactive compounds from selected African medicinal plants with potential anti-fibrotic properties using Fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GCMS) analysis. Two medicinal plant species known for their traditional use in fibrosis-related conditions were selected for investigation. Aqueous extracts were prepared from the plant materials, and FTIR analysis was conducted to determine the functional groups present in the extracts. GCMS analysis was performed to identify the chemical constituents of the extracts. The FTIR analysis revealed the presence of various functional groups, such as phenols, flavonoids, terpenoids, and alkaloids, known for their potential therapeutic activities. These functional groups are associated with antioxidant, anti-inflammatory, and anti-fibrotic properties. The GCMS analysis identified several bioactive compounds, including flavonoids, alkaloids, terpenoids, and phenolic compounds, which are known for their pharmacological activities. The discovery of bioactive compounds in African medicinal plants that exhibit anti-fibrotic effects, opens up promising avenues for further research and development of potential treatments for fibrosis. This suggests the potential of these plants as a valuable source of novel therapeutic agents for treating fibrosis-related conditions. In conclusion, our study identified and characterized bioactive compounds from selected African medicinal plants using FTIR and GCMS analysis. The presence of compounds with known antifibrotic properties suggests that these plants hold promise as a potential source of natural products for the development of novel anti-fibrotic therapies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=uterine%20fibroids" title="uterine fibroids">uterine fibroids</a>, <a href="https://publications.waset.org/abstracts/search?q=african%20medicinal%20plants" title=" african medicinal plants"> african medicinal plants</a>, <a href="https://publications.waset.org/abstracts/search?q=bioactive%20compounds" title=" bioactive compounds"> bioactive compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=identify%20and%20characterized" title=" identify and characterized"> identify and characterized</a> </p> <a href="https://publications.waset.org/abstracts/168625/investigating-selected-traditional-african-medicinal-plants-for-anti-fibrotic-potential-identification-and-characterization-of-bioactive-compounds-through-fourier-transform-infrared-spectroscopy-and-gas-chromatography-mass-spectrometry-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168625.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">100</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Flood Risk Assessment for Agricultural Production in a Tropical River Delta Considering Climate Change</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chandranath%20Chatterjee">Chandranath Chatterjee</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Khatun"> Amina Khatun</a>, <a href="https://publications.waset.org/abstracts/search?q=Bhabagrahi%20Sahoo"> Bhabagrahi Sahoo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the changing climate, precipitation events are intensified in the tropical river basins. Since these river basins are significantly influenced by the monsoonal rainfall pattern, critical impacts are observed on the agricultural practices in the downstream river reaches. This study analyses the crop damage and associated flood risk in terms of net benefit in the paddy-dominated tropical Indian delta of the Mahanadi River. The Mahanadi River basin lies in eastern part of the Indian sub-continent and is greatly affected by the southwest monsoon rainfall extending from the month of June to September. This river delta is highly flood-prone and has suffered from recurring high floods, especially after the 2000s. In this study, the lumped conceptual model, Nedbør Afstrømnings Model (NAM) from the suite of MIKE models, is used for rainfall-runoff modeling. The NAM model is laterally integrated with the MIKE11-Hydrodynamic (HD) model to route the runoffs up to the head of the delta region. To obtain the precipitation-derived future projected discharges at the head of the delta, nine Global Climate Models (GCMs), namely, BCC-CSM1.1(m), GFDL-CM3, GFDL-ESM2G, HadGEM2-AO, IPSL-CM5A-LR, IPSL-CM5A-MR, MIROC5, MIROC-ESM-CHEM and NorESM1-M, available in the Coupled Model Intercomparison Project-Phase 5 (CMIP5) archive are considered. These nine GCMs are previously found to best-capture the Indian Summer Monsoon rainfall. Based on the performance of the nine GCMs in reproducing the historical discharge pattern, three GCMs (HadGEM2-AO, IPSL-CM5A-MR and MIROC-ESM-CHEM) are selected. A higher Taylor Skill Score is considered as the GCM selection criteria. Thereafter, the 10-year return period design flood is estimated using L-moments based flood frequency analysis for the historical and three future projected periods (2010-2039, 2040-2069 and 2070-2099) under Representative Concentration Pathways (RCP) 4.5 and 8.5. A non-dimensional hydrograph analysis is performed to obtain the hydrographs for the historical/projected 10-year return period design floods. These hydrographs are forced into the calibrated and validated coupled 1D-2D hydrodynamic model, MIKE FLOOD, to simulate the flood inundation in the delta region. Historical and projected flood risk is defined based on the information about the flood inundation simulated by the MIKE FLOOD model and the inundation depth-damage-duration relationship of a normal rice variety cultivated in the river delta. In general, flood risk is expected to increase in all the future projected time periods as compared to the historical episode. Further, in comparison to the 2010s (2010-2039), an increased flood risk in the 2040s (2040-2069) is shown by all the three selected GCMs. However, the flood risk then declines in the 2070s as we move towards the end of the century (2070-2099). The methodology adopted herein for flood risk assessment is one of its kind and may be implemented in any world-river basin. The results obtained from this study can help in future flood preparedness by implementing suitable flood adaptation strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flood%20frequency%20analysis" title="flood frequency analysis">flood frequency analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=flood%20risk" title=" flood risk"> flood risk</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20climate%20models%20%28GCMs%29" title=" global climate models (GCMs)"> global climate models (GCMs)</a>, <a href="https://publications.waset.org/abstracts/search?q=paddy%20cultivation" title=" paddy cultivation"> paddy cultivation</a> </p> <a href="https://publications.waset.org/abstracts/173381/flood-risk-assessment-for-agricultural-production-in-a-tropical-river-delta-considering-climate-change" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173381.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Microwave Assisted Thermal Cracking of Castor Oil Zeolite ZSM-5 as Catalyst for Biofuel Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghazi%20Faisal%20Najmuldeen">Ghazi Faisal Najmuldeen</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Abdul%20Rahman%E2%80%93Al%20Ezzi"> Ali Abdul Rahman–Al Ezzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tharmathas%20A%2FL%20Alagappan"> Tharmathas A/L Alagappan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this investigation was to produce biofuel from castor oil through microwave assisted thermal cracking with zeolite ZSM-5 as catalyst. The obtained results showed that microwave assisted thermal cracking of castor oil with Zeolite ZSM-5 as catalyst generates products consisting of alcohol, methyl esters and fatty acids. The products obtained from this experimental procedure by the cracking of castor oil are components of biodiesel. Samples of cracked castor oil containing 1, 3 and 5wt % catalyst was analyzed, however, only the sample containing the 5wt % catalyst showed significant presence of condensate. FTIR and GCMS studies show that the condensate obtained is an unsaturated fatty acid, is 9, 12-octadecadienoic acid, suitable for biofuel use. 9, 12-octadecadienoic acid is an unsaturated fatty acid with a molecular weight of 280.445 g/mol. Characterization of the sample demonstrates that functional group for the products from the three samples display a similar peak in the FTIR graph analysis at 1700 cm-1 and 3600 cm-1. The result obtained from GCMS shows that there are 16 peaks obtained from the sample. The compound with the highest peak area is 9, 12-octadecadienoic acid with a retention time of 9.941 and 24.65 peak areas. All these compounds are organic material and can be characterized as biofuel and biodiesel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=castor%20oil" title="castor oil">castor oil</a>, <a href="https://publications.waset.org/abstracts/search?q=biofuel" title=" biofuel"> biofuel</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title=" biodiesel"> biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20cracking" title=" thermal cracking"> thermal cracking</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave" title=" microwave"> microwave</a> </p> <a href="https://publications.waset.org/abstracts/39975/microwave-assisted-thermal-cracking-of-castor-oil-zeolite-zsm-5-as-catalyst-for-biofuel-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39975.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">233</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Potential Climate Change Impacts on the Hydrological System of the Harvey River Catchment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hashim%20Isam%20Jameel%20Al-Safi">Hashim Isam Jameel Al-Safi</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Ranjan%20Sarukkalige"> P. Ranjan Sarukkalige</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate change is likely to impact the Australian continent by changing the trends of rainfall, increasing temperature, and affecting the accessibility of water quantity and quality. This study investigates the possible impacts of future climate change on the hydrological system of the Harvey River catchment in Western Australia by using the conceptual modelling approach (HBV mode). Daily observations of rainfall and temperature and the long-term monthly mean potential evapotranspiration, from six weather stations, were available for the period (1961-2015). The observed streamflow data at Clifton Park gauging station for 33 years (1983-2015) in line with the observed climate variables were used to run, calibrate and validate the HBV-model prior to the simulation process. The calibrated model was then forced with the downscaled future climate signals from a multi-model ensemble of fifteen GCMs of the CMIP3 model under three emission scenarios (A2, A1B and B1) to simulate the future runoff at the catchment outlet. Two periods were selected to represent the future climate conditions including the mid (2046-2065) and late (2080-2099) of the 21<sup>st</sup> century. A control run, with the reference climate period (1981-2000), was used to represent the current climate status. The modelling outcomes show an evident reduction in the mean annual streamflow during the mid of this century particularly for the A1B scenario relative to the control run. Toward the end of the century, all scenarios show a relatively high reduction trends in the mean annual streamflow, especially the A1B scenario, compared to the control run. The decline in the mean annual streamflow ranged between 4-15% during the mid of the current century and 9-42% by the end of the century. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change%20impact" title="climate change impact">climate change impact</a>, <a href="https://publications.waset.org/abstracts/search?q=Harvey%20catchment" title=" Harvey catchment"> Harvey catchment</a>, <a href="https://publications.waset.org/abstracts/search?q=HBV%20model" title=" HBV model"> HBV model</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrological%20modelling" title=" hydrological modelling"> hydrological modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=GCMs" title=" GCMs"> GCMs</a>, <a href="https://publications.waset.org/abstracts/search?q=LARS-WG" title=" LARS-WG"> LARS-WG</a> </p> <a href="https://publications.waset.org/abstracts/68726/potential-climate-change-impacts-on-the-hydrological-system-of-the-harvey-river-catchment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68726.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">263</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Gc-ms Data Integrated Chemometrics for the Authentication of Vegetable Oil Brands in Minna, Niger State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasaq%20Bolakale%20Salau">Rasaq Bolakale Salau</a>, <a href="https://publications.waset.org/abstracts/search?q=Maimuna%20Muhammad%20Abubakar"> Maimuna Muhammad Abubakar</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20Yisa"> Jonathan Yisa</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Tauheed%20Bisiriyu"> Muhammad Tauheed Bisiriyu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jimoh%20Oladejo%20Tijani"> Jimoh Oladejo Tijani</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20Ifeanyi%20Ajai"> Alexander Ifeanyi Ajai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vegetables oils are widely consumed in Nigeria. This has led to competitive manufacture of various oil brands. This leads increasing tendencies for fraud, labelling misinformation and other unwholesome practices. A total of thirty samples including raw and corresponding branded samples of vegetable oils were collected. The Oils were extracted from raw ground nut, soya bean and oil palm fruits. The GC-MS data was subjected to chemometric techniques of PCA and HCA. The SOLO 8.7 version of the standalone chemometrics software developed by Eigenvector research incorporated and powered by PLS Toolbox was used. The GCMS fingerprint gave basis for discrimination as it reveals four predominant but unevenly distributed fatty acids: Hexadecanoic acid methyl ester (10.27- 45.21% PA), 9,12-octadecadienoic acid methyl ester (10.9 - 45.94% PA), 9-octadecenoic acid methyl ester (18.75 - 45.65%PA), and Eicosanoic acid methyl ester (1.19% - 6.29%PA). In PCA modelling, two PCs are retained at cumulative variance captured at 73.15%. The score plots indicated that palm oil brands are most aligned with raw palm oil. PCA loading plot reveals the signature retention times between 4.0 and 6.0 needed for quality assurance and authentication of the oils samples. They are of aromatic hydrocarbons, alcohols and aldehydes functional groups. HCA dendrogram which was modeled using Euclidian distance through Wards method, indicated co-equivalent samples. HCA revealed the pair of raw palm oil brand and palm oil brand in the closest neighbourhood (± 1.62 % A difference) based on variance weighted distance. It showed Palm olein brand to be most authentic. In conclusion, based on the GCMS data with chemometrics, the authenticity of the branded samples is ranked as: Palm oil > Soya oil > groundnut oil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vegetable%20oil" title="vegetable oil">vegetable oil</a>, <a href="https://publications.waset.org/abstracts/search?q=authenticity" title=" authenticity"> authenticity</a>, <a href="https://publications.waset.org/abstracts/search?q=chemometrics" title=" chemometrics"> chemometrics</a>, <a href="https://publications.waset.org/abstracts/search?q=PCA" title=" PCA"> PCA</a>, <a href="https://publications.waset.org/abstracts/search?q=HCA" title=" HCA"> HCA</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS" title=" GC-MS"> GC-MS</a> </p> <a href="https://publications.waset.org/abstracts/190371/gc-ms-data-integrated-chemometrics-for-the-authentication-of-vegetable-oil-brands-in-minna-niger-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/190371.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">31</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Downscaling Daily Temperature with Neuroevolutionary Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Min%20Shi">Min Shi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> State of the art research with Artificial Neural Networks for the downscaling of General Circulation Models (GCMs) mainly uses back-propagation algorithm as a training approach. This paper introduces another training approach of ANNs, Evolutionary Algorithm. The combined algorithm names neuroevolutionary (NE) algorithm. We investigate and evaluate the use of the NE algorithms in statistical downscaling by generating temperature estimates at interior points given information from a lattice of surrounding locations. The results of our experiments indicate that NE algorithms can be efficient alternative downscaling methods for daily temperatures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=temperature" title="temperature">temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=downscaling" title=" downscaling"> downscaling</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20networks" title=" artificial neural networks"> artificial neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=evolutionary%20algorithms" title=" evolutionary algorithms"> evolutionary algorithms</a> </p> <a href="https://publications.waset.org/abstracts/29051/downscaling-daily-temperature-with-neuroevolutionary-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29051.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">349</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Determination of Carbofuran Residue in Brinjal (Solanum melongena L.) and Soil of Brinjal Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Islam">R. Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Haque"> M. A. Haque</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20H.%20Kabir"> K. H. Kabir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A supervised trail was set with brinjal at research field, Entomology Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur to determine the residue of Carbofuran in soil and fruit samples at different days after application (DAA) of Furadan 5 G @ 2 kg AI/ ha. Field collected samples were analyzed by GCMS-EI. Results of the experiment indicated the presence of Carbofuran residue up to 60 DAA in soil samples and 25 DAA in brinjal fruit samples. In case of soil samples, the detected residues were 7.04, 2.78, 0.79, 0.43, 0.12, 0.06 and 0.05 ppm at 0, 2, 5, 10, 20, 30 and 60 DAA respectively. On the other hand, in brinjal fruit samples Carbofuran residues were 0.005 ppm, 0.095 ppm, 0.084 ppm, 0.065 ppm, 0.063 ppm, 0.056 ppm, 0.050 ppm, 0.030 ppm and 0.016 ppm at 0, 2, 4, 6, 8, 10, 12, 15 and 25-DAA, respectively. None of this amount was above the recommended MRL (0.1 mg / kg crop) of Carborufan for agricultural crops. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brinjal" title="brinjal">brinjal</a>, <a href="https://publications.waset.org/abstracts/search?q=carbofuran" title=" carbofuran"> carbofuran</a>, <a href="https://publications.waset.org/abstracts/search?q=MRL" title=" MRL"> MRL</a>, <a href="https://publications.waset.org/abstracts/search?q=residue" title=" residue"> residue</a> </p> <a href="https://publications.waset.org/abstracts/29583/determination-of-carbofuran-residue-in-brinjal-solanum-melongena-l-and-soil-of-brinjal-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29583.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">511</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Chemical Variability in the Essential Oils from the Leaves and Buds of Syzygium Species</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rabia%20Waseem">Rabia Waseem</a>, <a href="https://publications.waset.org/abstracts/search?q=Low%20Kah%20Hin"> Low Kah Hin</a>, <a href="https://publications.waset.org/abstracts/search?q=Najihah%20Mohamed%20Hashim"> Najihah Mohamed Hashim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The variability in the chemical components of the Syzygium species essential oils has been evaluated. The leaves of Syzygium species have been collected from Perak, Malaysia. The essential oils extracted by using the conventional Hydro-distillation extraction procedure and analyzed by using Gas chromatography System attached with Mass Spectrometry (GCMS). Twenty-seven constituents were found in Syzygium species in which the major constituents include: α-Pinene (3.94%), α-Thujene (2.16%), α-Terpineol (2.95%), g-Elemene (2.89%) and D-Limonene (14.59%). The aim of this study was the comparison between the evaluated data and existing literature to fortify the major variability through statistical analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemotaxonomy" title="chemotaxonomy">chemotaxonomy</a>, <a href="https://publications.waset.org/abstracts/search?q=cluster%20analysis" title=" cluster analysis"> cluster analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title=" essential oil"> essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plants" title=" medicinal plants"> medicinal plants</a>, <a href="https://publications.waset.org/abstracts/search?q=statistical%20analysis" title=" statistical analysis"> statistical analysis</a> </p> <a href="https://publications.waset.org/abstracts/43504/chemical-variability-in-the-essential-oils-from-the-leaves-and-buds-of-syzygium-species" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43504.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Treatment of Oil Recovery Water Using Direct and Indirect Electrochemical Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tareg%20Omar%20Mansour">Tareg Omar Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Omar%20Elhaji"> Khaled Omar Elhaji </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Model solutions of pentanol in the salt water of various concentrations were subjected to electrochemical oxidation using a dimensionally stable anode (DSA) and a platinised titanium cathode. The removal of pentanol was analysed over time using gas chromatography (GC) and by monitoring the total organic carbon (TOC) concentration of the reaction mixture. It was found that the removal of pentanol occurred more efficiently at higher salinities and higher applied electrical current values. When using a salt concentration of 20,000 ppm and an applied current of 100 mA there was a decrease in concentration of pentanol of 15 %. When the salt concentration and applied current were increased to 58,000 ppm and 500 mA respectively, the decrease in concentration was improved to 64 %. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dimensionally%20stable%20anode%20%28DSA%29" title="dimensionally stable anode (DSA)">dimensionally stable anode (DSA)</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20organic%20hydrocarbon%20%28TOC%29" title=" total organic hydrocarbon (TOC)"> total organic hydrocarbon (TOC)</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20chromatography%20mass%20spectrometry%20%28GCMS%29" title=" gas chromatography mass spectrometry (GCMS)"> gas chromatography mass spectrometry (GCMS)</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation" title=" electrochemical oxidation"> electrochemical oxidation</a> </p> <a href="https://publications.waset.org/abstracts/11461/treatment-of-oil-recovery-water-using-direct-and-indirect-electrochemical-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11461.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">384</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Characterization of Enhanced Thermostable Polyhydroxyalkanoates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Idi">Ahmad Idi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The biosynthesis and properties of polyhydroxyalkanoate (PHA) are determined by the bacterial strain and the culture condition. Hence this study elucidates the structure and properties of PHA produced by a newly isolated strain of photosynthetic bacterium, Rhodobacter sphaeroides ADZ101 grown under the optimized culture condition. The properties of the accumulated PHA were determined via FTIR, NMR, TGA, and GCMS analyses. The results showed that acetate and ammonia chloride had the highest PHA accumulation with a ratio of 32.5 mM at neutral pH. The structural analyses showed that the polymer comprises both short and medium-chain length monomers ranging from C5, C13, C14, and C18, as well as the presence of novel PHA monomers. The thermal analysis revealed that the maximum temperature of decomposition occurred at 395°C and 454°C, indicating two major decomposition reactions. Thus this bacterial strain, optimized culture condition, and the abundance of novel monomers enhanced the thermostability of the accumulated PHA. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioplastic%20polyhydroxyalkanoates%20Rhodobacter%20sphaeroides%20ADZ101%20thermostable%20PHA" title="bioplastic polyhydroxyalkanoates Rhodobacter sphaeroides ADZ101 thermostable PHA">bioplastic polyhydroxyalkanoates Rhodobacter sphaeroides ADZ101 thermostable PHA</a> </p> <a href="https://publications.waset.org/abstracts/120385/characterization-of-enhanced-thermostable-polyhydroxyalkanoates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120385.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Study of Pottery And Glazed Canopic Vessels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Mohamed">Abdelrahman Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ancient Egyptians used canopic vessels in embalming operations in order to preserve the guts of the mummified corpse. Canopic vessels were made of many materials, including pottery and glazed pottery. In this research, we study a pottery canopic vessel and a glazed pottery vessel. An analysis to find out the compounds and elements of the materials from which the container is made and the colors, and also to make some analysis for the organic materials present inside it, such as the Fourier Transform Infrared Spectroscopy analysis and the Gas chromatograph mass spectrometers analysis of the organic residue. Through the study and analysis, it was proved that some of the materials present in the pot were coniferous oil and animal fats. In the other pot, the analysis showed the presence of some plant resins (mastic) inside rolls of linen. Restoration operations were carried out, such as mechanical cleaning, strengthening, and completing the reinforcement of the pots. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=canopic%20jar" title="canopic jar">canopic jar</a>, <a href="https://publications.waset.org/abstracts/search?q=embalming" title=" embalming"> embalming</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR" title=" FTIR"> FTIR</a>, <a href="https://publications.waset.org/abstracts/search?q=GCMS" title=" GCMS"> GCMS</a>, <a href="https://publications.waset.org/abstracts/search?q=linen." title=" linen."> linen.</a> </p> <a href="https://publications.waset.org/abstracts/164726/study-of-pottery-and-glazed-canopic-vessels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164726.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Biodiesel Production from Canola Oil Using Trans-Esterification Process with Koh as a Catalyst</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Nafis%20Alfarizi">M. Nafis Alfarizi</a>, <a href="https://publications.waset.org/abstracts/search?q=Dinda%20A.%20Utami"> Dinda A. Utami</a>, <a href="https://publications.waset.org/abstracts/search?q=Arif%20%20Hidayat"> Arif Hidayat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Biodiesel is one solution to overcome the use of petroleum fuels. Many alternative feedstocks that can be used among which canola oil. The purpose of this study was to determine the ability of canola oil and KOH for the trans-esterification reaction in biodiesel production. Canola oil has a very high purity that can be used as an alternative feedstock for biodiesel production and expected it will be produced biodiesel with excellent quality. In this case of study, we used trans-esterification process wherein the triglyceride is reacted with an alcohol with KOH as a catalyst, and it will produce biodiesel and glycerol as byproduct and we choose trans-esterification process because canola oil has a 0,445% FFA content. The variables studied in this research include the comparison of canola oil and methanol, temperature, time, and the percent of catalyst used. In this study the method of analysis we use GCMS and FTIR to know what the characteristic in canola oil. Development of canola oil seems to be the perfect solution to produce high-quality biodiesel. The reaction conditions resulted in 97.87% -w methyl ester (biodiesel) product by using a 0.5% wt KOH catalyst with canola and methanol ratio 1:8 at 60°C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title="biodiesel">biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=canola%20oil" title=" canola oil"> canola oil</a>, <a href="https://publications.waset.org/abstracts/search?q=KOH" title=" KOH"> KOH</a>, <a href="https://publications.waset.org/abstracts/search?q=trans-esterification" title=" trans-esterification"> trans-esterification</a> </p> <a href="https://publications.waset.org/abstracts/66534/biodiesel-production-from-canola-oil-using-trans-esterification-process-with-koh-as-a-catalyst" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66534.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Antimicrobial and Aroma Finishing of Organic Cotton Knits Using Vetiver Oil Microcapsules for Health Care Textiles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20J.%20Sannapapamma">K. J. Sannapapamma</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Malligawad%20Lokanath"> H. Malligawad Lokanath</a>, <a href="https://publications.waset.org/abstracts/search?q=Sakeena%20Naikwadi"> Sakeena Naikwadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Eco-friendly textiles are gaining importance among the consumers and textile manufacturers in the healthcare sector due to increased environmental pollution which leads to several health and environmental hazards. Hence, the research was designed to cultivate and develop the organic cotton knit, to prepare and characterize the Vetiver oil microcapsules for textile finishing and to access the wash durability of finished knits. The cotton <em>SAHANA</em> variety grown under organic production systems was processed and spun into 30 single yarn dyed with four natural colorants (Arecanut slurry, Eucalyptus leaves, Pomegranate rind and Indigo) and eco dyed yarn was further used for development of single jersy knitted fabric. <em>Vetiveria zizanioides </em>is an aromatic grass which is being traditionally used in medicine and perfumery. Vetiver essential oil was used for preparation of microcapsules by interfacial polymerization technique subjected to Gas Chromatography Mass Spectrometry (GCMS), Fourier Transform Infrared Spectroscopy (FTIR), Thermo Gravimetric Analyzer (TGA) and Scanning Electron Microscope (SEM) for characterization of microcapsules. The knitted fabric was finished with vetiver oil microcapsules by exhaust and pad dry cure methods. The finished organic knit was assessed for laundering on antimicrobial efficiency and aroma intensity. GCMS spectral analysis showed that, diethyl phthalate (28%) was the major compound found in vetiver oil followed by isoaromadendrene epoxide (7.72%), beta-vetivenene (6.92%), solavetivone (5.58%), aromadenderene, azulene and khusimol. Bioassay explained that, the vetiver oil and diluted vetiver oil possessed greater zone of inhibition against <em>S. aureus</em> and <em>E. coli </em>than the coconut oil. FTRI spectra of vetiver oil and microcapsules possessed similar peaks viz., C-H, C=C & C꞊O stretching and additionally oil microcapsules possessed the peak of 3331.24 cm<sup>-1</sup> at 91.14 transmittance was attributed to N-H stretches. TGA of oil microcapsules revealed that, there was a minimum weight loss (5.835%) recorded at 467.09°C compared to vetiver oil i.e., -3.026% at the temperature of 396.24°C. The shape of the microcapsules was regular and round, some were spherical in shape and few were rounded by small aggregates. Irrespective of methods of application, organic cotton knits finished with microcapsules by pad dry cure method showed maximum zone of inhibition compared to knits finished by exhaust method against <em>S. aureus</em> and <em>E. coli</em>. The antimicrobial activity of the finished samples was subjected to multiple washing which indicated that knits finished with pad dry cure method showed a zone of inhibition even after 20<sup>th</sup> wash and better aroma retention compared to knits finished with the exhaust method of application. Further, the group of respondents rated that the 5<sup>th</sup> washed samples had the greater aroma intensity in both the methods than the other samples. Thus, the vetiver microencapsulated organic cotton knits are free from hazardous chemicals and have multi-functional properties that can be suitable for medical and healthcare textiles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=exhaust%20and%20pad%20dry%20cure%20finishing" title="exhaust and pad dry cure finishing">exhaust and pad dry cure finishing</a>, <a href="https://publications.waset.org/abstracts/search?q=interfacial%20polymerization" title=" interfacial polymerization"> interfacial polymerization</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20cotton%20knits" title=" organic cotton knits"> organic cotton knits</a>, <a href="https://publications.waset.org/abstracts/search?q=vetiver%20oil%20microcapsules" title=" vetiver oil microcapsules"> vetiver oil microcapsules</a> </p> <a href="https://publications.waset.org/abstracts/85050/antimicrobial-and-aroma-finishing-of-organic-cotton-knits-using-vetiver-oil-microcapsules-for-health-care-textiles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85050.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">281</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Multi-Model Super Ensemble Based Advanced Approaches for Monsoon Rainfall Prediction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Swati%20Bhomia">Swati Bhomia</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20M.%20Kishtawal"> C. M. Kishtawal</a>, <a href="https://publications.waset.org/abstracts/search?q=Neeru%20Jaiswal"> Neeru Jaiswal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traditionally, monsoon forecasts have encountered many diﬃculties that stem from numerous issues such as lack of adequate upper air observations, mesoscale nature of convection, proper resolution, radiative interactions, planetary boundary layer physics, mesoscale air-sea ﬂuxes, representation of orography, etc. Uncertainties in any of these areas lead to large systematic errors. Global circulation models (GCMs), which are developed independently at different institutes, each of which carries somewhat different representation of the above processes, can be combined to reduce the collective local biases in space, time, and for different variables from different models. This is the basic concept behind the multi-model superensemble and comprises of a training and a forecast phase. The training phase learns from the recent past performances of models and is used to determine statistical weights from a least square minimization via a simple multiple regression. These weights are then used in the forecast phase. The superensemble forecasts carry the highest skill compared to simple ensemble mean, bias corrected ensemble mean and the best model out of the participating member models. This approach is a powerful post-processing method for the estimation of weather forecast parameters reducing the direct model output errors. Although it can be applied successfully to the continuous parameters like temperature, humidity, wind speed, mean sea level pressure etc., in this paper, this approach is applied to rainfall, a parameter quite difficult to handle with standard post-processing methods, due to its high temporal and spatial variability. The present study aims at the development of advanced superensemble schemes comprising of 1-5 day daily precipitation forecasts from five state-of-the-art global circulation models (GCMs), i.e., European Centre for Medium Range Weather Forecasts (Europe), National Center for Environmental Prediction (USA), China Meteorological Administration (China), Canadian Meteorological Centre (Canada) and U.K. Meteorological Office (U.K.) obtained from THORPEX Interactive Grand Global Ensemble (TIGGE), which is one of the most complete data set available. The novel approaches include the dynamical model selection approach in which the selection of the superior models from the participating member models at each grid and for each forecast step in the training period is carried out. Multi-model superensemble based on the training using similar conditions is also discussed in the present study, which is based on the assumption that training with the similar type of conditions may provide the better forecasts in spite of the sequential training which is being used in the conventional multi-model ensemble (MME) approaches. Further, a variety of methods that incorporate a 'neighborhood' around each grid point which is available in literature to allow for spatial error or uncertainty, have also been experimented with the above mentioned approaches. The comparison of these schemes with respect to the observations verifies that the newly developed approaches provide more unified and skillful prediction of the summer monsoon (viz. June to September) rainfall compared to the conventional multi-model approach and the member models. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-model%20superensemble" title="multi-model superensemble">multi-model superensemble</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamical%20model%20selection" title=" dynamical model selection"> dynamical model selection</a>, <a href="https://publications.waset.org/abstracts/search?q=similarity%20criteria" title=" similarity criteria"> similarity criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=neighborhood%20technique" title=" neighborhood technique"> neighborhood technique</a>, <a href="https://publications.waset.org/abstracts/search?q=rainfall%20prediction" title=" rainfall prediction"> rainfall prediction</a> </p> <a href="https://publications.waset.org/abstracts/78753/multi-model-super-ensemble-based-advanced-approaches-for-monsoon-rainfall-prediction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78753.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">139</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Use of Fabric Phase Sorptive Extraction with Gas Chromatography-Mass Spectrometry for the Determination of Organochlorine Pesticides in Various Aqueous and Juice Samples</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramandeep%20Kaur">Ramandeep Kaur</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Kumar%20Malik"> Ashok Kumar Malik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fabric Phase Sorptive Extraction (FPSE) combined with Gas chromatography Mass Spectrometry (GCMS) has been developed for the determination of nineteen organochlorine pesticides in various aqueous samples. The method consolidates the features of sol-gel derived microextraction sorbents with rich surface chemistry of cellulose fabric substrate which could directly extract sample from complex sample matrices and incredibly improve the operation with decreased pretreatment time. Some vital parameters such as kind and volume of extraction solvent and extraction time were examinedand optimized. Calibration curves were obtained in the concentration range 0.5-500 ng/mL. Under the optimum conditions, the limits of detection (LODs) were in the range 0.033 ng/mL to 0.136 ng/mL. The relative standard deviations (RSDs) for extraction of 10 ng/mL 0f OCPs were less than 10%. The developed method has been applied for the quantification of these compounds in aqueous and fruit juice samples. The results obtained proved the present method to be rapid and feasible for the determination of organochlorine pesticides in aqueous samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fabric%20phase%20sorptive%20extraction" title="fabric phase sorptive extraction">fabric phase sorptive extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20chromatography-mass%20spectrometry" title=" gas chromatography-mass spectrometry"> gas chromatography-mass spectrometry</a>, <a href="https://publications.waset.org/abstracts/search?q=organochlorine%20pesticides" title=" organochlorine pesticides"> organochlorine pesticides</a>, <a href="https://publications.waset.org/abstracts/search?q=sample%20pretreatment" title=" sample pretreatment"> sample pretreatment</a> </p> <a href="https://publications.waset.org/abstracts/80494/use-of-fabric-phase-sorptive-extraction-with-gas-chromatography-mass-spectrometry-for-the-determination-of-organochlorine-pesticides-in-various-aqueous-and-juice-samples" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80494.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">484</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Impacts of Climate Change on Water Resources of Greater Zab and Lesser Zab Basins, Iraq, Using Soil and Water Assessment Tool Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nahlah%20Abbas">Nahlah Abbas</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20A.%20Wasimi"> Saleh A. Wasimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadhir%20Al-Ansari"> Nadhir Al-Ansari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Greater Zab and Lesser Zab are the major tributaries of Tigris River contributing the largest flow volumes into the river. The impacts of climate change on water resources in these basins have not been well addressed. To gain a better understanding of the effects of climate change on water resources of the study area in near future (2049-2069) as well as in distant future (2080-2099), Soil and Water Assessment Tool (SWAT) was applied. The model was first calibrated for the period from 1979 to 2004 to test its suitability in describing the hydrological processes in the basins. The SWAT model showed a good performance in simulating streamflow. The calibrated model was then used to evaluate the impacts of climate change on water resources. Six general circulation models (GCMs) from phase five of the Coupled Model Intercomparison Project (CMIP5) under three Representative Concentration Pathways (RCPs) RCP 2.6, RCP 4.5, and RCP 8.5 for periods of 2049-2069 and 2080-2099 were used to project the climate change impacts on these basins. The results demonstrated a significant decline in water resources availability in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tigris%20River" title="Tigris River">Tigris River</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title=" climate change"> climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20resources" title=" water resources"> water resources</a>, <a href="https://publications.waset.org/abstracts/search?q=SWAT" title=" SWAT"> SWAT</a> </p> <a href="https://publications.waset.org/abstracts/72381/impacts-of-climate-change-on-water-resources-of-greater-zab-and-lesser-zab-basins-iraq-using-soil-and-water-assessment-tool-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72381.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">204</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Sono- and Photocatalytic Degradation of Indigocarmine in Water Using ZnO</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20Veena">V. Veena</a>, <a href="https://publications.waset.org/abstracts/search?q=Suguna%20Yesodharan"> Suguna Yesodharan</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20P.%20Yesodharan"> E. P. Yesodharan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two Advanced Oxidation Processes (AOP) i.e., sono- and photo-catalysis mediated by semiconductor oxide catalyst, ZnO has been found effective for the removal of trace amounts of the toxic dye pollutant Indigocarmine (IC) from water. The effect of various reaction parameters such as concentration of the dye, catalyst dosage, temperature, pH, dissolved oxygen etc. as well as the addition of oxidisers and presence of salts in water on the rate of degradation has been evaluated and optimised. The degradation follows variable kinetics depending on the concentration of the substrate, the order of reaction varying from 1 to 0 with increase in concentration. The reaction proceeds through a number of intermediates and many of them have been identified using GCMS technique. The intermediates do not affect the rate of degradation significantly. The influence of anions such as chloride, sulphate, fluoride, carbonate, bicarbonate, phosphate etc. on the degradation of IC is not consistent and does not follow any predictable pattern. Phosphates and fluorides inhibit the degradation while chloride, sulphate, carbonate and bicarbonate enhance. Adsorption studies of the dye in the absence as well as presence of these anions show that there may not be any direct correlation between the adsorption of the dye on the catalyst and the degradation. Oxidants such as hydrogen peroxide and persulphate enhance the degradation though the combined effect and it is less than the cumulative effect of individual components. COD measurements show that the degradation proceeds to complete mineralisation. The results will be presented and probable mechanism for the degradation will be discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AOP" title="AOP">AOP</a>, <a href="https://publications.waset.org/abstracts/search?q=COD" title=" COD"> COD</a>, <a href="https://publications.waset.org/abstracts/search?q=indigocarmine" title=" indigocarmine"> indigocarmine</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title=" photocatalysis"> photocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=sonocatalysis" title=" sonocatalysis"> sonocatalysis</a> </p> <a href="https://publications.waset.org/abstracts/62167/sono-and-photocatalytic-degradation-of-indigocarmine-in-water-using-zno" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62167.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Climate Change Impacts on Future Wheat Growing Areas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Aljaryian">Rasha Aljaryian</a>, <a href="https://publications.waset.org/abstracts/search?q=Lalit%20Kumar"> Lalit Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate is undergoing continuous change and this trend will affect the cultivation areas ofmost crops, including wheat (Triticum aestivum L.), in the future. The current suitable cultivation areas may become unsuitable climatically. Countries that depend on wheat cultivation and export may suffer an economic loss because of production decline. On the other hand, some regions of the world could gain economically by increasing cultivation areas. This study models the potential future climatic suitability of wheat by using CLIMEX software. Two different global climate models (GCMs) were used, CSIRO-Mk3.0 (CS) and MIROC-H (MR), with two emission scenarios (A2, A1B). The results of this research indicate that the suitable climatic areas for wheat in the southern hemisphere, such as Australia, are expected to contract by the end of this century. However, some unsuitable or marginal areas will become climatically suitable under future climate scenarios. In North America and Europe further expansion inland could occur. Also, the results illustrate that heat and dry stresses as abiotic climatic factors will play an important role in wheat distribution in the future. Providing sufficient information about future wheat distribution will be useful for agricultural ministries and organizations to manage the shift in production areas in the future. They can minimize the expected harmful economic consequences by preparing strategic plans and identifying new areas for wheat cultivation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Climate%20change" title="Climate change">Climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=Climate%20modelling" title=" Climate modelling"> Climate modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=CLIMEX" title=" CLIMEX"> CLIMEX</a>, <a href="https://publications.waset.org/abstracts/search?q=Triticum%20aestivum" title=" Triticum aestivum"> Triticum aestivum</a>, <a href="https://publications.waset.org/abstracts/search?q=Wheat" title=" Wheat"> Wheat</a> </p> <a href="https://publications.waset.org/abstracts/56514/climate-change-impacts-on-future-wheat-growing-areas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56514.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">253</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Polyethylene Terephthalate Plastic Degradation by Fungus Rasamsonia Emersonii</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naveen%20Kumar">Naveen Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Microplastics, tiny plastic particles less than 5 mm in size formed by the disposal and breakdown of industrial and consumer products, have become a primary environmental concern due to their ubiquitous presence and application in the environment and their potential to cause harm to the ecosystem, wildlife and human health. In this, we study the ability of the fungus Rasamsonia emersonii IMI 393752 to degrade the rigid microplastics of Coke bottles. Microplastics were extracted from Coke bottles and incubated with Rasamsonia emersonii in Sabouraud dextrose agar media. Microplastics were pre-sterilized without altering the chemistry of microplastic. Preliminary analysis was performed by observing radial growth assessment of microplastic-containing media enriched with fungi vs. control. The assay confirmed no impedance or change in the fungi's growth pattern and rate by introducing microplastics. The degradation of the microplastics was monitored over time using microscopy and FTIR, and biodegradation/deterioration on the plastic surface was observed. Furthermore, the liquid assay was performed. HPLC and GCMS will be conducted to check the biodegradation and presence of enzyme release by fungi to counteract the presence of microplastics. These findings have important implications for managing plastic waste, as they suggest that fungi such as Rasamsonia emersonii can potentially degrade microplastics safely and effectively. However, further research to optimise the conditions for microplastic degradation by Rasamsonia emersonii and to develop strategies for scaling up the process for industrial applications will be beneficial. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioremediation" title="bioremediation">bioremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=mycoremediation" title=" mycoremediation"> mycoremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=plastic%20degradtion" title=" plastic degradtion"> plastic degradtion</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethylene%20terephthalate" title=" polyethylene terephthalate"> polyethylene terephthalate</a> </p> <a href="https://publications.waset.org/abstracts/167061/polyethylene-terephthalate-plastic-degradation-by-fungus-rasamsonia-emersonii" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167061.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">97</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Isolation, Purification and Characterisation of Non-Digestible Oligosaccharides Derived from Extracellular Polysaccharide of Antarctic Fungus Thelebolus Sp. IITKGP-BT12 </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abinaya%20Balasubramanian">Abinaya Balasubramanian</a>, <a href="https://publications.waset.org/abstracts/search?q=Satyabrata%20Ghosh"> Satyabrata Ghosh</a>, <a href="https://publications.waset.org/abstracts/search?q=Satyahari%20Dey"> Satyahari Dey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Non-Digestible Oligosaccharides(NDOs) are low molecular weight carbohydrates with degree of polymerization (DP) 3-20, that are delivered intact to the large intestine. NDOs are gaining attention as effective prebiotic molecules that facilitate prevention and treatment of several chronic diseases. Recently, NDOs are being obtained by cleaving complex polysaccharides as it results in high yield and also as the former tend to display greater bioactivity. Thelebolus sp. IITKGP BT-12, a recently identified psychrophilic, Ascomycetes fungus has been reported to produce a bioactive extracellular polysaccharide(EPS). The EPS has been proved to possess strong prebiotic activity and anti- proliferative effects. The current study is an attempt to identify and optimise the most suitable method for hydrolysis of the above mentioned novel EPS into NDOs, and further purify and characterise the same. Among physical, chemical and enzymatic methods, enzymatic hydrolysis was identified as the best method and the optimum hydrolysis conditions obtained using response surface methodology were: reaction time of 24h, β-(1,3) endo-glucanase concentration of 0.53U and substrate concentration of 10 mg/ml. The NDOs were purified using gel filtration chromatography and their molecular weights were determined using MALDI-TOF. The major fraction was found to have a DP of 7,8. The monomeric units of the NDOs were confirmed to be glucose using TLC and GCMS-MS analysis. The obtained oligosaccharides proved to be non-digestible when subjected to gastric acidity, salivary and pancreatic amylases and hence could serve as efficient prebiotics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=characterisation" title="characterisation">characterisation</a>, <a href="https://publications.waset.org/abstracts/search?q=enzymatic%20hydrolysis" title=" enzymatic hydrolysis"> enzymatic hydrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=non-digestible%20oligosaccharides" title=" non-digestible oligosaccharides"> non-digestible oligosaccharides</a>, <a href="https://publications.waset.org/abstracts/search?q=response%20surface%20methodology" title=" response surface methodology"> response surface methodology</a> </p> <a href="https://publications.waset.org/abstracts/104989/isolation-purification-and-characterisation-of-non-digestible-oligosaccharides-derived-from-extracellular-polysaccharide-of-antarctic-fungus-thelebolus-sp-iitkgp-bt12" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104989.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">129</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Effect of Climate Change on Groundwater Recharge in a Sub-Humid Sub-Tropical Region of Eastern India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suraj%20Jena">Suraj Jena</a>, <a href="https://publications.waset.org/abstracts/search?q=Rabindra%20Kumar%20Panda"> Rabindra Kumar Panda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study region of the reported study was in Eastern India, having a sub-humid sub-tropical climate and sandy loam soil. The rainfall in this region has wide temporal and spatial variation. Due to lack of adequate surface water to meet the irrigation and household demands, groundwater is being over exploited in that region leading to continuous depletion of groundwater level. Therefore, there is an obvious urgency in reversing the depleting groundwater level through induced recharge, which becomes more critical under the climate change scenarios. The major goal of the reported study was to investigate the effects of climate change on groundwater recharge and subsequent adaptation strategies. Groundwater recharge was modelled using HELP3, a quasi-two-dimensional, deterministic, water-routing model along with global climate models (GCMs) and three global warming scenarios, to examine the changes in groundwater recharge rates for a 2030 climate under a variety of soil and vegetation covers. The relationship between the changing mean annual recharge and mean annual rainfall was evaluated for every combination of soil and vegetation using sensitivity analysis. The relationship was found to be statistically significant (p<0.05) with a coefficient of determination of 0.81. Vegetation dynamics and water-use affected by the increase in potential evapotranspiration for large climate variability scenario led to significant decrease in recharge from 49–658 mm to 18–179 mm respectively. Therefore, appropriate conjunctive use, irrigation schedule and enhanced recharge practices under the climate variability and land use/land cover change scenarios impacting the groundwater recharge needs to be understood properly for groundwater sustainability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Groundwater%20recharge" title="Groundwater recharge">Groundwater recharge</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20variability" title=" climate variability"> climate variability</a>, <a href="https://publications.waset.org/abstracts/search?q=Land%20use%2Fcover" title=" Land use/cover"> Land use/cover</a>, <a href="https://publications.waset.org/abstracts/search?q=GCM" title=" GCM"> GCM</a> </p> <a href="https://publications.waset.org/abstracts/47139/effect-of-climate-change-on-groundwater-recharge-in-a-sub-humid-sub-tropical-region-of-eastern-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47139.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">282</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Estimation and Removal of Chlorophenolic Compounds from Paper Mill Waste Water by Electrochemical Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Sharma">R. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Kumar"> S. Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Sharma"> C. Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A number of toxic chlorophenolic compounds are formed during pulp bleaching. The nature and concentration of these chlorophenolic compounds largely depends upon the amount and nature of bleaching chemicals used. These compounds are highly recalcitrant and difficult to remove but are partially removed by the biochemical treatment processes adopted by the paper industry. Identification and estimation of these chlorophenolic compounds has been carried out in the primary and secondary clarified effluents from the paper mill by GCMS. Twenty-six chorophenolic compounds have been identified and estimated in paper mill waste waters. Electrochemical treatment is an efficient method for oxidation of pollutants and has successfully been used to treat textile and oil waste water. Electrochemical treatment using less expensive anode material, stainless steel electrodes has been tried to study their removal. The electrochemical assembly comprised a DC power supply, a magnetic stirrer and stainless steel (316 L) electrode. The optimization of operating conditions has been carried out and treatment has been performed under optimized treatment conditions. Results indicate that 68.7% and 83.8% of cholorphenolic compounds are removed during 2 h of electrochemical treatment from primary and secondary clarified effluent respectively. Further, there is a reduction of 65.1, 60 and 92.6% of COD, AOX and color, respectively for primary clarified and 83.8%, 75.9% and 96.8% of COD, AOX and color, respectively for secondary clarified effluent. EC treatment has also been found to increase significantly the biodegradability index of wastewater because of conversion of non- biodegradable fraction into biodegradable fraction. Thus, electrochemical treatment is an efficient method for the degradation of cholorophenolic compounds, removal of color, AOX and other recalcitrant organic matter present in paper mill waste water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chlorophenolics" title="chlorophenolics">chlorophenolics</a>, <a href="https://publications.waset.org/abstracts/search?q=effluent" title=" effluent"> effluent</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20treatment" title=" electrochemical treatment"> electrochemical treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater" title=" wastewater"> wastewater</a> </p> <a href="https://publications.waset.org/abstracts/38459/estimation-and-removal-of-chlorophenolic-compounds-from-paper-mill-waste-water-by-electrochemical-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">387</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Effect of Active Compounds Extracted From Tagetes Erecta Against Plant-Parasitic Nematodes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deepika">Deepika</a>, <a href="https://publications.waset.org/abstracts/search?q=Kashika%20Kapoor"> Kashika Kapoor</a>, <a href="https://publications.waset.org/abstracts/search?q=Nistha%20Khanna"> Nistha Khanna</a>, <a href="https://publications.waset.org/abstracts/search?q=Lakshmi"> Lakshmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Archna%20Kumar"> Archna Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plant-parasitic nematodes cause major loss in global food production and destroying at least 21.3% of food annually. About 4100 species of plant-parasitic nematodes are reported, out of this, Meloidogyne species is prominent and worldwide in distribution. Observing the harmful effects of chemical based nematicides, there is a great need for an eco-friendly, highly efficient, sustainable control measure for Meloidogyne. Therefore, In vitro study was carried out to observe the impact of volatile cues obtained from the Tagetes erecta leaves on plant parasitic nematodes. Volatile cues were collected from marigold leaves. For chemical characterization, GCMS (Gas Chromatography Mass Spectrometry) profiling was conducted. VOCs (Volatile Organic Compounds) profile of marigold indicated the presence of several types of alkanes, alkenes varying in number and quantity. Status of nematodes population by counting the live and dead individuals after applying a definite volume (100µl) of extract was recorded at different concentrations (100%, 50%, 25%) with contrast of control (hexane) during different time durations i.e.,24hr, 48hr and 72hr. Result indicated that mortality increases with increasing time (72hr) and concentration (100%) i.e., 50%. Thus, application of prominent compound present in Marigold in pure form may be tested individually or in combination to find out the most efficient active compound/s, which may be highly useful in eco-friendly management of targeted plant parasitic nematode. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plant-parasitic%20nematode" title="plant-parasitic nematode">plant-parasitic nematode</a>, <a href="https://publications.waset.org/abstracts/search?q=meloidogyne" title=" meloidogyne"> meloidogyne</a>, <a href="https://publications.waset.org/abstracts/search?q=tagetes%20erecta" title=" tagetes erecta"> tagetes erecta</a>, <a href="https://publications.waset.org/abstracts/search?q=volatile%20organic%20compounds" title=" volatile organic compounds"> volatile organic compounds</a> </p> <a href="https://publications.waset.org/abstracts/149074/effect-of-active-compounds-extracted-from-tagetes-erecta-against-plant-parasitic-nematodes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149074.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">168</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Biomass and Lipid Enhancement by Response Surface Methodology in High Lipid Accumulating Indigenous Strain Rhodococcus opacus and Biodiesel Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kulvinder%20Bajwa">Kulvinder Bajwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Narsi%20R.%20Bishnoi"> Narsi R. Bishnoi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Finding a sustainable alternative for today’s petrochemical industry is a major challenge facing by researchers, scientists, chemical engineers, and society at the global level. Microorganisms are considered to be sustainable feedstock for 3rd generation biofuel production. In this study, we have investigated the potential of a native bacterial strain isolated from a petrol contaminated site for the production of biodiesel. The bacterium was identified to be Rhodococcus opacus by biochemical test and 16S rRNA. Compositional analysis of bacterial biomass has been carried out by Fourier transform infrared spectroscopy (FTIR) in order to confirm lipid profile. Lipid and biomass were optimized by combination with Box Behnken design (BBD) of response surface methodology. The factors selected for the optimization of growth condition were glucose, yeast extract, and ammonium nitrate concentration. The experimental model developed through RSM in terms of effective operational factors (BBD) was found to be suitable to describe the lipid and biomass production, which indicated higher lipid and biomass with a minimum concentration of ammonium nitrate, yeast extract, and quite higher dose of glucose supplementation. Optimum results of the experiments were found to be 2.88 gL⁻¹ biomass and lipid content 38.75% at glucose 20 gL⁻¹, ammonium nitrate 0.5 gL⁻¹ and yeast extract 1.25 gL⁻¹. Furthermore, GCMS study revealed that Rhodococcus opacus has favorable fatty acid profile for biodiesel production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biofuel" title="biofuel">biofuel</a>, <a href="https://publications.waset.org/abstracts/search?q=Oleaginious%20bacteria" title=" Oleaginious bacteria"> Oleaginious bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=Rhodococcus%20opacus" title=" Rhodococcus opacus"> Rhodococcus opacus</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR" title=" FTIR"> FTIR</a>, <a href="https://publications.waset.org/abstracts/search?q=BBD" title=" BBD"> BBD</a>, <a href="https://publications.waset.org/abstracts/search?q=free%20fatty%20acids" title=" free fatty acids"> free fatty acids</a> </p> <a href="https://publications.waset.org/abstracts/138198/biomass-and-lipid-enhancement-by-response-surface-methodology-in-high-lipid-accumulating-indigenous-strain-rhodococcus-opacus-and-biodiesel-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138198.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">136</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Review of Downscaling Methods in Climate Change and Their Role in Hydrological Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nishi%20Bhuvandas">Nishi Bhuvandas</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20V.%20Timbadiya"> P. V. Timbadiya</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20L.%20Patel"> P. L. Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20D.%20Porey"> P. D. Porey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recent perceived climate variability raises concerns with unprecedented hydrological phenomena and extremes. Distribution and circulation of the waters of the Earth become increasingly difficult to determine because of additional uncertainty related to anthropogenic emissions. According to the sixth Intergovernmental Panel on Climate Change (IPCC) Technical Paper on Climate Change and water, changes in the large-scale hydrological cycle have been related to an increase in the observed temperature over several decades. Although many previous research carried on effect of change in climate on hydrology provides a general picture of possible hydrological global change, new tools and frameworks for modelling hydrological series with nonstationary characteristics at finer scales, are required for assessing climate change impacts. Of the downscaling techniques, dynamic downscaling is usually based on the use of Regional Climate Models (RCMs), which generate finer resolution output based on atmospheric physics over a region using General Circulation Model (GCM) fields as boundary conditions. However, RCMs are not expected to capture the observed spatial precipitation extremes at a fine cell scale or at a basin scale. Statistical downscaling derives a statistical or empirical relationship between the variables simulated by the GCMs, called predictors, and station-scale hydrologic variables, called predictands. The main focus of the paper is on the need for using statistical downscaling techniques for projection of local hydrometeorological variables under climate change scenarios. The projections can be then served as a means of input source to various hydrologic models to obtain streamflow, evapotranspiration, soil moisture and other hydrological variables of interest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=downscaling" title=" downscaling"> downscaling</a>, <a href="https://publications.waset.org/abstracts/search?q=GCM" title=" GCM"> GCM</a>, <a href="https://publications.waset.org/abstracts/search?q=RCM" title=" RCM "> RCM </a> </p> <a href="https://publications.waset.org/abstracts/9540/review-of-downscaling-methods-in-climate-change-and-their-role-in-hydrological-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9540.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">406</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Investigating Potential Pest Management Strategies for Citrus Gall Wasp in Australia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Yazdani">M. Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20F.%20Carragher"> J. F. Carragher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Citrus gall wasp (CGW), Bruchophagus fellis (Hym: Eurytomidae), is an Australian native insect pest. CGW has now become a problem of national concern, threatening the viability of the entire Australian citrus industry. However, CGW appears to exhibit a preference for certain citrus species; growers report that grapefruit and lemons are most severely infested, with oranges and mandarins affected to a lesser extent. Given the specificity of the host plant-insect interactions, it is speculated that plant volatiles may play a significant role in host recognition. To address whether plant volatiles is involved in host plant preference by CGW we tested the behavioral response of CGW to plants in a wind tunnel. The result showed that CGW had significantly higher preference to grapefruit and lemon than other cultivars and the least preference was recorded to mandarin (Chi-square test, P<0.001). Because CGW exhibited a detectable choice further studies were undertaken to identify the components of the volatiles from each species. We trapped the volatile chemicals emitted by a 30 cm tip of each plant onto a solid Porapak matrix. Eluted extracts were then analysed by Gas Chromatography-Mass Spectrometry (GCMS) and the presumptive identity of the major compounds from each species inferred from the MS library. Although the same major compounds existed in all of the cultivars, the relative ratios of them differed between species. Next, we will validate the identity of the key volatiles using authentic standards and establish their ability to elicit olfactory responses in CGW in wind tunnel and field experiments. Identification of semiochemicals involved in host location by CGW is of interest not only from an ecological perspective but also for the development of novel pest control strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Citrus%20gall%20wasp" title="Citrus gall wasp">Citrus gall wasp</a>, <a href="https://publications.waset.org/abstracts/search?q=Bruchophagus%20fellis" title=" Bruchophagus fellis"> Bruchophagus fellis</a>, <a href="https://publications.waset.org/abstracts/search?q=volatiles" title=" volatiles"> volatiles</a>, <a href="https://publications.waset.org/abstracts/search?q=semiochemicals" title=" semiochemicals"> semiochemicals</a>, <a href="https://publications.waset.org/abstracts/search?q=IPM" title=" IPM"> IPM</a> </p> <a href="https://publications.waset.org/abstracts/71330/investigating-potential-pest-management-strategies-for-citrus-gall-wasp-in-australia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71330.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">232</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=GC-MS&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=GC-MS&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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