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Search results for: organic dye

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for: organic dye</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2218</span> The Exploration Targets of the Nanpu Sag: Insight from Organic Geochemical Characteristics of Source Rocks and Oils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lixin%20Pei">Lixin Pei</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhilong%20Huang"> Zhilong Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenzhe%20Gang"> Wenzhe Gang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Organic geochemistry of source rocks and oils in the Nanpu Sag, Bohai Bay basin was studied on the basis of the results of Rock-Eval and biomarker. The possible source rocks consist of the third member (Es₃) and the first member (Es₁) of Shahejie formation and the third member of Dongying Formation (Ed₃) in the Nanpu Sag. The Es₃, Es₁, and Ed₃ source rock intervals in the Nanpu Sag all have high organic-matter richness and are at hydrocarbon generating stage, which are regarded as effective source rocks. The three possible source rock intervals have different biomarker associations and can be differentiated by gammacerane/αβ C₃₀ hopane, ETR ([C₂₈+C₂₉]/ [C₂₈+C₂₉+Ts]), C₂₇ diasterane/sterane and C₂₇/C₂₉ steranes, which suggests they deposited in different environments. Based on the oil-source rock correlation, the shallow oils mainly originated from the Es₃ and Es₁ source rocks in the Nanpu Sag. Through hydrocarbon generation and expulsion history of the source rocks, trap development history and accumulation history, the shallow oils mainly originated from paleo-reservoirs in the Es₃ and Es₁ during the period of Neotectonism, and the residual paleo-reservoirs in the Es₃ and Es₁ would be the focus targets in the Nanpu Sag; Bohai Bay Basin. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=source%20rock" title="source rock">source rock</a>, <a href="https://publications.waset.org/abstracts/search?q=biomarker%20association" title=" biomarker association"> biomarker association</a>, <a href="https://publications.waset.org/abstracts/search?q=Nanpu%20Sag" title=" Nanpu Sag"> Nanpu Sag</a>, <a href="https://publications.waset.org/abstracts/search?q=Bohai%20Bay%20Basin" title=" Bohai Bay Basin"> Bohai Bay Basin</a> </p> <a href="https://publications.waset.org/abstracts/79990/the-exploration-targets-of-the-nanpu-sag-insight-from-organic-geochemical-characteristics-of-source-rocks-and-oils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79990.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">373</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">2217</span> Effect of Curing Temperature on Unconfined Compression Strength of Bagasse Ash-Calcium Carbide Residue Treated Organic Clay</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=John%20Trihatmoko">John Trihatmoko</a>, <a href="https://publications.waset.org/abstracts/search?q=Luky%20Handoko"> Luky Handoko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A series of experimental program was undertaken to study the effect of curing temperature on the unconfined compression strength of bagasse ash (BA) - calcium carbide residue (CCR) stabilized organic clay (OC). A preliminary experiment was performed to get the physical properties of OC, and to get the optimum water content (OMC), the standard compaction test was done. The stabilizing agents used in this research was (40% BA + 60% CCR) . Then to obtain the best binder proportion, unconfined compression test was undertaken for OC + 3, 6, 9, 12 and 15% of binder with 7, 14, 21, 28 and 56 days curing period. The best quantity of the binder was found on 9%. Finally, to study the effect of curing temperature, the unconfined compression test was performed on OC + 9% binder with 7, 14, 21, 28 and 56 days curing time with 20O, 25O, 30O, 40O, and 50O C curing temperature. The result indicates that unconfined compression strength (UCS) of treated OC improve according to the increase of curing temperature at the same curing time. The improvement of UCS is probably due to the degree of cementation and pozzolanic reactions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=curing%20temperature" title="curing temperature">curing temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20clay" title=" organic clay"> organic clay</a>, <a href="https://publications.waset.org/abstracts/search?q=bagasse%20ash" title=" bagasse ash"> bagasse ash</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20carbide%20residue" title=" calcium carbide residue"> calcium carbide residue</a>, <a href="https://publications.waset.org/abstracts/search?q=unconfined%20compression%20strength" title=" unconfined compression strength"> unconfined compression strength</a> </p> <a href="https://publications.waset.org/abstracts/123381/effect-of-curing-temperature-on-unconfined-compression-strength-of-bagasse-ash-calcium-carbide-residue-treated-organic-clay" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123381.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">125</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">2216</span> The Amount of Organic Phosphates (Like DPG) Existing in Blood is Determining Factor of Mammal’s Bulk</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramin%20Amirmardfar">Ramin Amirmardfar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Throughout Necessary oxygen should be supplied for all cells of a mammal at any moment through blood to make it possible remain alive all cells the mammal’s body. In case a mammal’s bulk is large, there is a farther distance between cells in different tissues and mammals’ heart. Therefore red blood cells in bulky mammal’s body should be capable of conveying oxygen to farther distances. To make it practical, oxygen should be glued red blood cells tenaciously. In other words, cohesion strength of oxygen to red blood cell of bulky mammal’s blood should be much more than the same of small mammal’s blood. In mammal’s bodies, the controlling factor of amount of cohesion of oxygen to red blood cell, are organic phosphates (like DPG). The less DPG in red blood cells of a mammal, the more cohesion of oxygen to red blood cell (at the same rate). As much as oxygen is glued more tenacious to red blood cells, oxygen could been carried to farther distance and as much as oxygen could be conveyed to farther points of heart, bulk of mammal could be larger at the same rate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mammals%20size" title="mammals size">mammals size</a>, <a href="https://publications.waset.org/abstracts/search?q=animals%20size" title=" animals size"> animals size</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20phosphates" title=" organic phosphates"> organic phosphates</a>, <a href="https://publications.waset.org/abstracts/search?q=DPG" title=" DPG"> DPG</a>, <a href="https://publications.waset.org/abstracts/search?q=red%20blood%20cell" title=" red blood cell"> red blood cell</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolism" title=" metabolism"> metabolism</a> </p> <a href="https://publications.waset.org/abstracts/12665/the-amount-of-organic-phosphates-like-dpg-existing-in-blood-is-determining-factor-of-mammals-bulk" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12665.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">355</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">2215</span> Efficient Mercury Sorbent: Activated Carbon and Metal Organic Framework Hybrid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yongseok%20Hong">Yongseok Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Kurt%20Louis%20Solis"> Kurt Louis Solis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study, a hybrid sorbent using the metal organic framework (MOF), UiO-66, and powdered activated carbon (pAC) is synthesized to remove cationic and anionic metals simultaneously. UiO-66 is an octahedron-shaped MOF with a Zr₆O₄(OH)₄ metal node and 1,4-benzene dicarboxylic acid (BDC) organic linker. Zr-based MOFs are attractive for trace element remediation in wastewaters, because Zr is relatively non-toxic as compared to other classes of MOF and, therefore, it will not cause secondary pollution. Most remediation studies with UiO-66 target anions such as fluoride, but trace element oxyanions such as arsenic, selenium, and antimony have also been investigated. There have also been studies involving mercury removal by UiO-66 derivatives, however these require post-synthetic modifications or have lower effective surface areas. Activated carbon is known for being a readily available, well-studied, effective adsorbent for metal contaminants. Solvothermal method was employed to prepare hybrid sorbent from UiO66 and activated carbon, which could be used to remove mercury and selenium simultaneously. The hybrid sorbent was characterized using FSEM-EDS, FT-IR, XRD, and TGA. The results showed that UiO66 and activated carbon are successfully composited. From BET studies, the hybrid sorbent has a SBET of 1051 m² g⁻¹. Adsorption studies were performed, where the hybrid showed maximum adsorption of 204.63 mg g⁻¹ and 168 mg g⁻¹ for Hg (II) and selenite, respectively, and follows the Langmuir model for both species. Kinetics studies have revealed that the Hg uptake of the hybrid is pseudo-2nd order and has rate constant of 5.6E-05 g mg⁻¹ min⁻¹ and the selenite uptake follows the simplified Elovich model with α = 2.99 mg g⁻¹ min⁻¹, β = 0.032 g mg⁻¹. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsorption" title="adsorption">adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=flue%20gas%20wastewater" title=" flue gas wastewater"> flue gas wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=mercury" title=" mercury"> mercury</a>, <a href="https://publications.waset.org/abstracts/search?q=selenite" title=" selenite"> selenite</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20organic%20framework" title=" metal organic framework"> metal organic framework</a> </p> <a href="https://publications.waset.org/abstracts/79574/efficient-mercury-sorbent-activated-carbon-and-metal-organic-framework-hybrid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79574.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">174</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">2214</span> Elimination Study of Organic Pollutants from Leachate Technical Landfill; Using Fenton and Photo-Fenton Systems Combined with Biological Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Belahmadi%20M.%20S.%20O.">Belahmadi M. S. O.</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdessemed%20A."> Abdessemed A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Benchiheub%20M."> Benchiheub M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Doukali%20%20H."> Doukali H.</a>, <a href="https://publications.waset.org/abstracts/search?q=Kaid%20Kasbah%20%20K.%20M."> Kaid Kasbah K. M.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study is to evaluate the quality of leachate generated by the Batna landfill site, and to verify the performance of various advanced oxidation processes, in particular the Fenton and Photo-Fenton systems combined with biological treatment to eliminate the recalcitrant organic matter contained in this effluent, and to preserve reverse osmosis membranes used for leachate treatment. The average values obtained are compared with national and international discharge standards. The results of physico-chemical analyses show that the leachate has an alkaline pH =8.26 and a high organic load with a low oxygen content. Mineral pollution is represented by high conductivity (38.3 mS/cm), high Kjeldahl nitrogen content (1266.504 mg/L) and ammoniacal nitrogen (1098.384 mg/L). The average pollution indicator parameters measured were: BOD5 = 1483.333 mg O2 /L, COD = 99790.244 mg O 2/L, TOC = 22400 mg C/L. These parameters exceed Algerian standards. Hence, there is a necessity to treat this effluent before discharging it into the environment. A comparative study was carried out to estimate the efficiency of two oxidation processes. Under optimum reaction conditions, TOC removal efficiencies of 63.43% and 73.4% were achieved for the Fenton and Photo-Fenton processes, respectively. COD removal rates estimated at 88% and 99.5% for the Fenton and Photo- Fenton processes, respectively. In addition, the Photo-Fenton + bacteria + micro- algae hybrid treatment gave removal efficiencies of around 92.24% for TOC and 99.9% for COD; -0.5 for AOS and 0.01 for CN. The results obtained during this study showed that a hybrid approach combining the PhotoFenton process and biological treatment appears to be a highly effective alternative for achieving satisfactory treatment, which aimed at exploiting the advantages of this method in terms of organic pollutant removal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=leachate" title="leachate">leachate</a>, <a href="https://publications.waset.org/abstracts/search?q=landfill" title=" landfill"> landfill</a>, <a href="https://publications.waset.org/abstracts/search?q=advanced%20oxidation%20processes" title=" advanced oxidation processes"> advanced oxidation processes</a>, <a href="https://publications.waset.org/abstracts/search?q=Fenton%20and%20Photo-Fenton%20systems" title=" Fenton and Photo-Fenton systems"> Fenton and Photo-Fenton systems</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20treatment" title=" biological treatment"> biological treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20pollutants" title=" organic pollutants"> organic pollutants</a> </p> <a href="https://publications.waset.org/abstracts/174912/elimination-study-of-organic-pollutants-from-leachate-technical-landfill-using-fenton-and-photo-fenton-systems-combined-with-biological-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174912.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">67</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">2213</span> Dynamics of Soil Fertility Management in India: An Empirical Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Suresh%20Reddy">B. Suresh Reddy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The over dependence on chemical fertilizers for nutrient management in crop production for the last few decades has led to several problems affecting soil health, environment and farmers themselves. Based on the field work done in 2012-13 with 1080 farmers of different size-classes in semi-arid regions of Uttar Pradesh, Jharkhand and Madhya Pradesh states of India, this paper reveals that the farmers in semi-arid regions of India are actively managing soil fertility and other soil properties through a wide range of practices that are based on local resources and knowledge. It also highlights the socio-economic web woven around these soil fertility management practices. This study highlights the contribution of organic matter by traditional soil fertility management practices in maintaining the soil health. Livestock has profound influence on the soil fertility enhancement through supply of organic manure. Empirical data of this study has clearly revealed how farmers’ soil fertility management options are being undermined by government policies that give more priority to chemical fertiliser-based strategies. Based on the findings it is argued that there should be a 'level playing field' for both organic and inorganic soil fertility management methods by promoting and supporting farmers in using organic methods. There is a need to provide credit to farmers for adopting his choice of soil fertility management methods which suits his socio-economic conditions and that best suits the long term productivity of soils. The study suggests that the government policies related to soil fertility management must be enabling, creating the conditions for development based more on locally available resources and local skills and knowledge. This will not only keep Indian soils in healthy condition but also support the livelihoods of millions of people, especially the small and marginal farmers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=livestock" title="livestock">livestock</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20matter" title=" organic matter"> organic matter</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20farmers" title=" small farmers"> small farmers</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20fertility" title=" soil fertility"> soil fertility</a> </p> <a href="https://publications.waset.org/abstracts/85587/dynamics-of-soil-fertility-management-in-india-an-empirical-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85587.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">174</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">2212</span> The Impact of Ultrasonic Field to Increase the Biodegradability of Leachate from The Landfill</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwarciak-Kozlowska%20A.">Kwarciak-Kozlowska A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Slawik-Dembiczak%20L."> Slawik-Dembiczak L.</a>, <a href="https://publications.waset.org/abstracts/search?q=Galwa-Widera%20M."> Galwa-Widera M.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Complex and variable during operation of the landfill leachate composition prevents the use of a single universal method of their purification. Due to the presence of difficult biodegradable these substances in the wastewater, cleaning of them often requires the use of biological methods (activated sludge or anaerobic digestion), also often supporting by physicochemical processes. Currently, more attention is paid to the development of unconventional methods of disposal of sewage m.in ultleniania advanced methods including the use of ultrasonic waves. It was assumed that the ultrasonic waves induce change in the structure of organic compounds and contribute to the acceleration of biodegradability, including refractive substances in the leachate, so that will increase the effectiveness of their treatment in biological processes. We observed a marked increase in BOD leachate when subjected to the action of utradźwięowego. Ratio BOD / COD was 27% higher compared to the value of this ratio for leachate nienadźwiękawianych. It was found that the process of sonification leachate clearly influenced the formation and release of aliphatic compounds. These changes suggest a possible violation of the chemical structure of organic compounds in the leachate thereby give compounds of the chemical structure more susceptible to biodegradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=IR%20spectra" title="IR spectra">IR spectra</a>, <a href="https://publications.waset.org/abstracts/search?q=landfill%20leachate" title=" landfill leachate"> landfill leachate</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20pollutants" title=" organic pollutants"> organic pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/17313/the-impact-of-ultrasonic-field-to-increase-the-biodegradability-of-leachate-from-the-landfill" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17313.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">429</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">2211</span> Indoor Air Pollution of the Flexographic Printing Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jelena%20S.%20Kiurski">Jelena S. Kiurski</a>, <a href="https://publications.waset.org/abstracts/search?q=Vesna%20S.%20Keci%C4%87"> Vesna S. Kecić</a>, <a href="https://publications.waset.org/abstracts/search?q=Sne%C5%BEana%20M.%20Aksentijevi%C4%87"> Snežana M. Aksentijević</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The identification and evaluation of organic and inorganic pollutants were performed in a flexographic facility in Novi Sad, Serbia. Air samples were collected and analyzed <em>in situ</em>, during 4-hours working time at five sampling points by the mobile gas chromatograph and ozonometer at the printing of collagen casing. Experimental results showed that the concentrations of isopropyl alcohol, acetone, total volatile organic compounds and ozone varied during the sampling times. The highest average concentrations of 94.80 ppm and 102.57 ppm were achieved at 200 minutes from starting the production for isopropyl alcohol and total volatile organic compounds, respectively. The mutual dependences between target hazardous and microclimate parameters were confirmed using a multiple linear regression model with software package STATISTICA 10. Obtained multiple coefficients of determination in the case of ozone and acetone (0.507 and 0.589) with microclimate parameters indicated a moderate correlation between the observed variables. However, a strong positive correlation was obtained for isopropyl alcohol and total volatile organic compounds (0.760 and 0.852) with microclimate parameters. Higher values of parameter <em>F</em> than <em>F<sub>critical</sub></em> for all examined dependences indicated the existence of statistically significant difference between the concentration levels of target pollutants and microclimates parameters. Given that, the microclimate parameters significantly affect the emission of investigated gases and the application of eco-friendly materials in production process present a necessity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flexographic%20printing" title="flexographic printing">flexographic printing</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air" title=" indoor air"> indoor air</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20regression%20analysis" title=" multiple regression analysis"> multiple regression analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution%20emission" title=" pollution emission"> pollution emission</a> </p> <a href="https://publications.waset.org/abstracts/44336/indoor-air-pollution-of-the-flexographic-printing-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44336.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">197</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">2210</span> Classification Systems of Peat Soils Based on Their Geotechnical, Physical and Chemical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Saberian">Mohammad Saberian</a>, <a href="https://publications.waset.org/abstracts/search?q=Reza%20Porhoseini"> Reza Porhoseini</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Ali%20Rahgozar"> Mohammad Ali Rahgozar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Peat is a partially carbonized vegetable tissue which is formed in wet conditions by decomposition of various plants, mosses and animal remains. This restricted definition, including only materials which are entirely of vegetative origin, conflicts with several established soil classification systems. Peat soils are usually defined as soils having more than 75 percent organic matter. Due to this composition, the structure of peat soil is highly different from the mineral soils such as silt, clay and sand. Peat has high compressibility, high moisture content, low shear strength and low bearing capacity, so it is considered to be in the category of problematic. Since this kind of soil is generally found in many countries and various zones, except for desert and polar zones, recognizing this soil is inevitably significant. The objective of this paper is to review the classification of peats based on various properties of peat soils such as organic contents, water content, color, odor, and decomposition, scholars offer various classification systems which Von Post classification system is one of the most well-known and efficient system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=peat%20soil" title="peat soil">peat soil</a>, <a href="https://publications.waset.org/abstracts/search?q=degree%20of%20decomposition" title=" degree of decomposition"> degree of decomposition</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20content" title=" organic content"> organic content</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20content" title=" water content"> water content</a>, <a href="https://publications.waset.org/abstracts/search?q=Von%20Post%20classification" title=" Von Post classification"> Von Post classification</a> </p> <a href="https://publications.waset.org/abstracts/36695/classification-systems-of-peat-soils-based-on-their-geotechnical-physical-and-chemical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36695.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">595</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">2209</span> Contributions of Microbial Activities to Tomato Growth and Yield under an Organic Production System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20A.%20Babalola">O. A. Babalola</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20F%20Adekunle"> A. F Adekunle</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Oladeji"> F. Oladeji</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20T.%20Osungbade"> A. T. Osungbade</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20A.%20Akinlaja"> O. A. Akinlaja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Optimizing microbiological activities in an organic crop production system is crucial to the realization of optimum growth and development of the crops. Field and pot experiments were conducted to assess soil microbial activities, growth and yield of tomato varieties in response to 4 rates of composted plant and animal residues. The compost rates were 0, 5, 10 and 20 t ha-1, and improved Ibadan and Ibadan local constituted the varieties. Fungi population, microbial biomass nitrogen, cellulase and proteinase activities were significantly higher (P≤ 0.05) at the rhizosphere of the local variety than that of improved variety. This led to a significantly higher number of branches, plant height, leaf area, number of fruits and less days to maturity in the local variety. Furthermore, compost-amended soil had significantly higher microbial populations, microbial biomass N, P and C, enzyme activities, soil N, P and organic carbon than control, but amendment of 20 t ha-1 gave significantly higher values than other compost rates. Consequently, growth parameters and tissue N significantly increased in all compost treatments while dry matter yield and weight of fruits were significantly higher in soil amended with 20 t ha-1. Correlation analysis showed that microbial activities at 6 weeks after transplanting (6 WAT) were more consistently and highly correlated with growth and yield parameters. It was concluded that microbial activities could be optimized to improve the yield of the two tomato varieties in an organic production system, through the application of compost, particularly at 20 t ha-1. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=compost" title="compost">compost</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20activities" title=" microbial activities"> microbial activities</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20contribution" title=" microbial contribution"> microbial contribution</a>, <a href="https://publications.waset.org/abstracts/search?q=tomato%20growth%20and%20yield" title=" tomato growth and yield"> tomato growth and yield</a> </p> <a href="https://publications.waset.org/abstracts/81437/contributions-of-microbial-activities-to-tomato-growth-and-yield-under-an-organic-production-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81437.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">2208</span> The Ability of Organic Acids Production by Lactic Acid Bacteria in M17 Broth and Squid, Shrimp, Octopus, Eel Infusion Broth </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatih%20%C3%96zogul">Fatih Özogul</a>, <a href="https://publications.waset.org/abstracts/search?q=Sezen%20%C3%96z%C3%A7eli%CC%87k"> Sezen Özçeli̇k</a>, <a href="https://publications.waset.org/abstracts/search?q=Yesim%20%C3%96zogul"> Yesim Özogul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lactic, acetic, succinic, propionic, formic and butyric acid production by lactic acid bacteria (LAB) were monitored in M17 broth (the control) and some fish (squid, shrimp, octopus, and eel) infusion broth by using HPLC method. There were significant differences in terms of lactic, acetic, succinic, propionic, formic and butyric acid production (p < 0.005) among bacterial strains. Acetic acid production was the lowest by LAB while succinic acid followed by propionic acid was synthesized at the highest levels. Lactic acid production ranged from 0 to 938 mg/L by all LAB strains in different infusion broth. The highest acetic acid production was found by Lb. acidophilus and Lb. delbrueckii subsp. lactic in octopus and shrimp infusion broth, with values of 872 and 674 mg/L, respectively while formic acid formation ranged from 1747 mg/L by Lb. acidophilus in octopus infusion broth to 69 mg/L by Lb. delbrueckii subsp. lactis in shrimp infusion broth. Propionic acid and butyric acid productions by St. thermophilus were 9852 and 3999 mg/L in shrimp infusion broth while Leu. mes. subsp. cremoris synthesized 312 and 9 mg/L of those organic acid in European squid infusion broth, respectively. Apparently, LAB strains had a great capability to generate succinic acid followed by propionic and butyric acid. In addition, other organic acid production differed significantly depending on bacterial strains and growth medium. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lactic%20acid%20bacteria" title="Lactic acid bacteria ">Lactic acid bacteria </a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20acid" title=" organic acid"> organic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=HPLC%20analysis" title=" HPLC analysis"> HPLC analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=growth%20medium" title=" growth medium"> growth medium</a> </p> <a href="https://publications.waset.org/abstracts/72696/the-ability-of-organic-acids-production-by-lactic-acid-bacteria-in-m17-broth-and-squid-shrimp-octopus-eel-infusion-broth" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72696.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">385</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">2207</span> Training Manual of Organic Agriculture Farming for the Farmers: A Case Study from Kunjpura and Surrounding Villages</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rishi%20Pal%20Singh">Rishi Pal Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Indian Scenario, Organic agriculture is growing by the conscious efforts of inspired people who are able to create the best promising relationship between the earth and men. Nowadays, the major challenge is its entry into the policy-making framework, its entry into the global market and weak sensitization among the farmers. But, during the last two decades, the contamination in environment and food which is linked with the bad agricultural potential/techniques has diverted the mind set of farmers towards the organic farming. In the view of above concept, a small-scale project has been installed to promote the 20 farmers from the Kunjura and surrounding villages for organic farming. This project is working since from the last 3 crops (starting from October, 2016) and found that it can meet both demands and complete development of rural areas. Farmers of this concept are working on the principles such that the nature never demands unreasonable quantities of water, mining and to destroy the microbes and other organisms. As per details of Organic Monitor estimates, global sales reached in billion in the present analysis. In this initiative, firstly, wheat and rice were considered for farming and observed that the production of crop has grown almost 10-15% per year from the last crop production. This is not linked only with the profit or loss but also emphasized on the concept of health, ecology, fairness and care of soil enrichment. Several techniques were used like use of biological fertilizers instead of chemicals, multiple cropping, temperature management, rain water harvesting, development of own seed, vermicompost and integration of animals. In the first year, to increase the fertility of the land, legumes (moong, cow pea and red gram) were grown in strips for the 60, 90 and 120 days. Simultaneously, the mixture of compost and vermicompost in the proportion of 2:1 was applied at the rate of 2.0 ton per acre which was enriched with 5 kg Azotobacter and 5 kg Rhizobium biofertilizer. To complete the amount of phosphorus, 250 kg rock phosphate was used. After the one month, jivamrut can be used with the irrigation water or during the rainy days. In next season, compost-vermicompost mixture @ 2.5 ton/ha was used for all type of crops. After the completion of this treatment, now the soil is ready for high value ordinary/horticultural crops. The amount of above stated biofertilizers, compost-vermicompost and rock phosphate may be increased for the high alternative fertilizers. The significance of the projects is that now the farmers believe in cultural alternative (use of disease-free their own seed, organic pest management), maintenance of biodiversity, crop rotation practices and health benefits of organic farming. This type of organic farming projects should be installed at the level of gram/block/district administration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organic%20farming" title="organic farming">organic farming</a>, <a href="https://publications.waset.org/abstracts/search?q=Kunjpura" title=" Kunjpura"> Kunjpura</a>, <a href="https://publications.waset.org/abstracts/search?q=compost" title=" compost"> compost</a>, <a href="https://publications.waset.org/abstracts/search?q=bio-fertilizers" title=" bio-fertilizers"> bio-fertilizers</a> </p> <a href="https://publications.waset.org/abstracts/96047/training-manual-of-organic-agriculture-farming-for-the-farmers-a-case-study-from-kunjpura-and-surrounding-villages" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96047.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">195</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">2206</span> Organic Tuber Production Fosters Food Security and Soil Health: A Decade of Evidence from India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Suja">G. Suja</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Sreekumar"> J. Sreekumar</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20N.%20Jyothi"> A. N. Jyothi</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20S.%20Santhosh%20Mithra"> V. S. Santhosh Mithra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Worldwide concerns regarding food safety, environmental degradation and threats to human health have generated interest in alternative systems like organic farming. Tropical tuber crops, cassava, sweet potato, yams, and aroids are food-cum-nutritional security-cum climate resilient crops. These form stable or subsidiary food for about 500 million global population. Cassava, yams (white yam, greater yam, and lesser yam) and edible aroids (elephant foot yam, taro, and tannia) are high energy tuberous vegetables with good taste and nutritive value. Seven on-station field experiments at ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, India and seventeen on-farm trials in three districts of Kerala, were conducted over a decade (2004-2015) to compare the varietal response, yield, quality and soil properties under organic vs conventional system in these crops and to develop a learning system based on the data generated. The industrial, as well as domestic varieties of cassava, the elite and local varieties of elephant foot yam and taro and the three species of Dioscorea (yams), were on a par under both systems. Organic management promoted yield by 8%, 20%, 9%, 11% and 7% over conventional practice in cassava, elephant foot yam, white yam, greater yam and lesser yam respectively. Elephant foot yam was the most responsive to organic management followed by yams and cassava. In taro, slight yield reduction (5%) was noticed under organic farming with almost similar tuber quality. The tuber quality was improved with higher dry matter, starch, crude protein, K, Ca and Mg contents. The anti-nutritional factors, oxalate content in elephant foot yam and cyanogenic glucoside content in cassava were lowered by 21 and 12.4% respectively. Organic plots had significantly higher water holding capacity, pH, available K, Fe, Mn and Cu, higher soil organic matter, available N, P, exchangeable Ca and Mg, dehydrogenase enzyme activity and microbial count. Organic farming scored significantly higher soil quality index (1.93) than conventional practice (1.46). The soil quality index was driven by water holding capacity, pH and available Zn followed by soil organic matter. Organic management enhanced net profit by 20-40% over chemical farming. A case in point is the cost-benefit analysis in elephant foot yam which indicated that the net profit was 28% higher and additional income of Rs. 47,716 ha-1 was obtained due to organic farming. Cost-effective technologies were field validated. The on-station technologies developed were validated and popularized through on-farm trials in 10 sites (5 ha) under National Horticulture Mission funded programme in elephant foot yam and seven sites in yams and taro. The technologies are included in the Package of Practices Recommendations for crops of Kerala Agricultural University. A learning system developed using artificial neural networks (ANN) predicted the performance of elephant foot yam organic system. Use of organically produced seed materials, seed treatment in cow-dung, neem cake, bio-inoculant slurry, farmyard manure incubated with bio-inoculants, green manuring, use of neem cake, bio-fertilizers and ash formed the strategies for organic production. Organic farming is an eco-friendly management strategy that enables 10-20% higher yield, quality tubers and maintenance of soil health in tuber crops. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eco-agriculture" title="eco-agriculture">eco-agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=quality" title=" quality"> quality</a>, <a href="https://publications.waset.org/abstracts/search?q=root%20crops" title=" root crops"> root crops</a>, <a href="https://publications.waset.org/abstracts/search?q=healthy%20soil" title=" healthy soil"> healthy soil</a>, <a href="https://publications.waset.org/abstracts/search?q=yield" title=" yield"> yield</a> </p> <a href="https://publications.waset.org/abstracts/45474/organic-tuber-production-fosters-food-security-and-soil-health-a-decade-of-evidence-from-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45474.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">335</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">2205</span> Copper Phthalocyanine Nanostructures: A Potential Material for Field Emission Display</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Uttam%20Kumar%20Ghorai">Uttam Kumar Ghorai</a>, <a href="https://publications.waset.org/abstracts/search?q=Madhupriya%20Samanta"> Madhupriya Samanta</a>, <a href="https://publications.waset.org/abstracts/search?q=Subhajit%20Saha"> Subhajit Saha</a>, <a href="https://publications.waset.org/abstracts/search?q=Swati%20Das"> Swati Das</a>, <a href="https://publications.waset.org/abstracts/search?q=Nilesh%20Mazumder"> Nilesh Mazumder</a>, <a href="https://publications.waset.org/abstracts/search?q=Kalyan%20Kumar%20Chattopadhyay"> Kalyan Kumar Chattopadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Organic semiconductors have gained potential interest in the last few decades for their significant contributions in the various fields such as solar cell, non-volatile memory devices, field effect transistors and light emitting diodes etc. The most important advantages of using organic materials are mechanically flexible, light weight and low temperature depositing techniques. Recently with the advancement of nanoscience and technology, one dimensional organic and inorganic nanostructures such as nanowires, nanorods, nanotubes have gained tremendous interests due to their very high aspect ratio and large surface area for electron transport etc. Among them, self-assembled organic nanostructures like Copper, Zinc Phthalocyanine have shown good transport property and thermal stability due to their π conjugated bonds and π-π stacking respectively. Field emission properties of inorganic and carbon based nanostructures are reported in literatures mostly. But there are few reports in case of cold cathode emission characteristics of organic semiconductor nanostructures. In this work, the authors report the field emission characteristics of chemically and physically synthesized Copper Phthalocyanine (CuPc) nanostructures such as nanowires, nanotubes and nanotips. The as prepared samples were characterized by X-Ray diffraction (XRD), Ultra Violet Visible Spectrometer (UV-Vis), Fourier Transform Infra-red Spectroscopy (FTIR), and Field Emission Scanning Electron Microscope (FESEM) and Transmission Electron Microscope (TEM). The field emission characteristics were measured in our home designed field emission set up. The registered turn-on field and local field enhancement factor are found to be less than 5 V/μm and greater than 1000 respectively. The field emission behaviour is also stable for 200 minute. The experimental results are further verified by theoretically using by a finite displacement method as implemented in ANSYS Maxwell simulation package. The obtained results strongly indicate CuPc nanostructures to be the potential candidate as an electron emitter for field emission based display device applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organic%20semiconductor" title="organic semiconductor">organic semiconductor</a>, <a href="https://publications.waset.org/abstracts/search?q=phthalocyanine" title=" phthalocyanine"> phthalocyanine</a>, <a href="https://publications.waset.org/abstracts/search?q=nanowires" title=" nanowires"> nanowires</a>, <a href="https://publications.waset.org/abstracts/search?q=nanotubes" title=" nanotubes"> nanotubes</a>, <a href="https://publications.waset.org/abstracts/search?q=field%20emission" title=" field emission"> field emission</a> </p> <a href="https://publications.waset.org/abstracts/25872/copper-phthalocyanine-nanostructures-a-potential-material-for-field-emission-display" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25872.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">501</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">2204</span> Technologies in Municipal Solid Waste Management in Indian Towns</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gargi%20Ghosh">Gargi Ghosh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Municipal solid waste management (MSWM) is an obligatory function of the local self-government as per the Indian constitution, and this paper gives a glimpse of the system in Indian towns focusing on its present state and use of technology in the system. The paper analyses the MSWM characteristics in 35 towns in the southern state of Karnataka. The lifestyle in these towns was found to be very sustainable with minimal disposal and considerable reuse. Average per capita waste generated in the towns ranged from 300 gm/person to 500 gm/person. The waste collection efficiency varied from 60% to 80%. The waste shows equal share of organic and non-organic waste composition with a low calorific value. Lack of capacity of the municipal body in terms of manpower, assets & knowledge and social consciousness were found to be two major issues in the system. Technical solutions in use in India at present are composting, organic re-reprocessing, bio-methanation, waste to energy etc. The tonnage of waste generated ranged from 8 TPD to 80 TPD. The feasibility of technology has been analysed in the context of the above characteristics. It was found that low calorific value and mixed nature of waste made waste to energy and bio methanation processes unsuitable. Composting – windrow and closed door was found best to treat the bulk of the waste. Organic–re-processors was planned for phase 2 of MSWM program in the towns with effective implementation of segregation at source. GPS and RFID technology was recommended for monitoring the collection process and increasing accountability of the citizens for effective implementation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid%20waste%20management" title="solid waste management">solid waste management</a>, <a href="https://publications.waset.org/abstracts/search?q=Indian%20towns" title=" Indian towns"> Indian towns</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management%20technology" title=" waste management technology"> waste management technology</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20charateristics" title=" waste charateristics"> waste charateristics</a> </p> <a href="https://publications.waset.org/abstracts/60447/technologies-in-municipal-solid-waste-management-in-indian-towns" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60447.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">321</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">2203</span> Drought Stress and the Importance of Osmotic Adjustment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hooman%20Rowshanaie">Hooman Rowshanaie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The majority of green plants have 70%-90% water, this amount depend on age of plants, species, tissues of plants and also the environmental conditions that plants growth and development on it. Because of intense plant demanding to achieve the available water for growing and developing, always plants need a water sources and also mechanisms to retention the water and reduction water loss under critical situation and water deficit conditions otherwise the yield of plants would be decreased. Decreasing the yield depend on genotypes, intense of water deficit and also growth stage. Recently the mechanisms and also compound that have major role to water stress adaption of plants would be consideration. Osmotic adjustment is one of the most important mechanisms in terms of this field that many valuable researches focused on it because the majority of organic and inorganic solutes directly or even indirectly have pivotal role in this phenomenon. The contribution of OA to prevent water loss in response to water deficit and resistance to water stress taken to consideration recently and also the organic and inorganic compounds to OA tended has a high rate of significant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=water%20deficit" title="water deficit">water deficit</a>, <a href="https://publications.waset.org/abstracts/search?q=drought%20stress" title=" drought stress"> drought stress</a>, <a href="https://publications.waset.org/abstracts/search?q=osmotic%20adjustment" title=" osmotic adjustment"> osmotic adjustment</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20compound" title=" organic compound"> organic compound</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20compound" title=" inorganic compound"> inorganic compound</a>, <a href="https://publications.waset.org/abstracts/search?q=solute" title=" solute"> solute</a> </p> <a href="https://publications.waset.org/abstracts/4408/drought-stress-and-the-importance-of-osmotic-adjustment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4408.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">420</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">2202</span> Estimation of Mobility Parameters and Threshold Voltage of an Organic Thin Film Transistor Using an Asymmetric Capacitive Test Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rajesh%20%20Agarwal">Rajesh Agarwal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carrier mobility at the organic/insulator interface is essential to the performance of organic thin film transistors (OTFT). The present work describes estimation of field dependent mobility (FDM) parameters and the threshold voltage of an OTFT using a simple, easy to fabricate two terminal asymmetric capacitive test structure using admittance measurements. Conventionally, transfer characteristics are used to estimate the threshold voltage in an OTFT with field independent mobility (FIDM). Yet, this technique breaks down to give accurate results for devices with high contact resistance and having field dependent mobility. In this work, a new technique is presented for characterization of long channel organic capacitor (LCOC). The proposed technique helps in the accurate estimation of mobility enhancement factor (γ), the threshold voltage (V_th) and band mobility (µ₀) using capacitance-voltage (C-V) measurement in OTFT. This technique also helps to get rid of making short channel OTFT or metal-insulator-metal (MIM) structures for making C-V measurements. To understand the behavior of devices and ease of analysis, transmission line compact model is developed. The 2-D numerical simulation was carried out to illustrate the correctness of the model. Results show that proposed technique estimates device parameters accurately even in the presence of contact resistance and field dependent mobility. Pentacene/Poly (4-vinyl phenol) based top contact bottom-gate OTFT’s are fabricated to illustrate the operation and advantages of the proposed technique. Small signal of frequency varying from 1 kHz to 5 kHz and gate potential ranging from +40 V to -40 V have been applied to the devices for measurement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=capacitance" title="capacitance">capacitance</a>, <a href="https://publications.waset.org/abstracts/search?q=mobility" title=" mobility"> mobility</a>, <a href="https://publications.waset.org/abstracts/search?q=organic" title=" organic"> organic</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film%20transistor" title=" thin film transistor"> thin film transistor</a> </p> <a href="https://publications.waset.org/abstracts/94974/estimation-of-mobility-parameters-and-threshold-voltage-of-an-organic-thin-film-transistor-using-an-asymmetric-capacitive-test-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/94974.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">165</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">2201</span> An Effect of Organic Supplements on Stimulating Growth of Dendrobium Protocorms and Seedlings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sunthari%20Tharapan">Sunthari Tharapan</a>, <a href="https://publications.waset.org/abstracts/search?q=Chockpisit%20Thepsithar"> Chockpisit Thepsithar</a>, <a href="https://publications.waset.org/abstracts/search?q=Kullanart%20Obsuwan"> Kullanart Obsuwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was aimed to investigate the effect of various organic supplements on growth and development of Dendrobium discolor’s protocorms and seedlings growth of Dendrobium Judy Rutz. Protocorms of Dendrobium discolor with 2.0 cm. in diameter and seedlings of Dendrobium Judy Rutz at the same size (0.5 cm. height) were sub-cultured on Hyponex medium supplemented with cow milk (CM), soy milk (SM), potato extract (PE) and peptone (P) for 2 months. The protocorms were developed to seedlings in all treatments after cultured for 2 months. However, the best results were found on Hyponex medium supplemented with P was the best in which the maximum fresh and dry weight and maximum shoot height were obtained in this treatment statistically different (p ≤ 0.05) to other treatments. Moreover, Hyponex medium supplemented with P also stimulated the maximum mean number of 5.7 shoots per explant which also showed statistically different (p ≤ 0.05) when compared to other treatments. The results of growth of Dendrobium Judy Rutz seedlings indicated the medium supplemented with 100 mL/L PE enhanced the maximum fresh and dry weigh per explants with significantly different (p ≤ 0.05) in fresh weight from other treatments including the control medium without any organic supplementation. However, the dry weight was not significantly different (p ≤ 0.05) from medium supplemented with SM and P. There was multiple shoots induction in all media with or without organic supplementation ranging from 2.6 to 3 shoots per explants. The maximum shoot height was also obtained in the seedlings cultured on medium supplemented with PE while the longest root length was found in medium supplemented with SM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fresh%20weight" title="fresh weight">fresh weight</a>, <a href="https://publications.waset.org/abstracts/search?q=in%20vitro%20propagation" title=" in vitro propagation"> in vitro propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=orchid" title=" orchid"> orchid</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20height" title=" plant height"> plant height</a> </p> <a href="https://publications.waset.org/abstracts/6170/an-effect-of-organic-supplements-on-stimulating-growth-of-dendrobium-protocorms-and-seedlings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6170.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">365</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">2200</span> Short-Term Effects of Environmentally Relevant Concentrations of Organic UV Filters on Signal Crayfish Pacifastacus Leniusculus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktoriia%20Malinovska">Viktoriia Malinovska</a>, <a href="https://publications.waset.org/abstracts/search?q=Iryna%20Kuklina"> Iryna Kuklina</a>, <a href="https://publications.waset.org/abstracts/search?q=Katerina%20Grabicova"> Katerina Grabicova</a>, <a href="https://publications.waset.org/abstracts/search?q=Milos%20Buric"> Milos Buric</a>, <a href="https://publications.waset.org/abstracts/search?q=Pavel%20Kozak"> Pavel Kozak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Personal care products, including organic UV filters, are considered emerging contaminants and their toxic effects have been a concern for the last decades. Sunscreen compounds continually enter the surface waters via sewage water treatment due to incomplete removal and during human recreational and laundry activities. Despite the environmental occurrence of organic UV filters in the freshwater environment, little is known about their impacts on aquatic biota. In this study, environmentally relevant concentrations of 5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid (BP-4, 2.5 µg/L) and 2-Phenylbenzimidazole-5-sulfonic acid (PBSA, 3 µg/L) were used to evaluate the cardiac and locomotor responses of signal crayfish Pacifastacus leniusculus during a short time period. The effects of these compounds were evident in experimental animals. Specimens exposed to both tested compounds exhibited significantly bigger changes in distance moved and time movement than controls. Significant differences in changes in mean heart rate were detected in both PBSA and BP-4 experimental groups compared to control groups. Such behavioral and physiological alterations demonstrate the ecological effects of selected sunscreen compounds during a short time period. Since the evidence of the impacts of sunscreen compounds is scarce, the knowledge of how organic UV filters influence aquatic organisms is of key importance for future research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aquatic%20pollutants" title="aquatic pollutants">aquatic pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=behavior" title=" behavior"> behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=freshwaters" title=" freshwaters"> freshwaters</a>, <a href="https://publications.waset.org/abstracts/search?q=heart%20rate" title=" heart rate"> heart rate</a>, <a href="https://publications.waset.org/abstracts/search?q=invertebrate" title=" invertebrate"> invertebrate</a> </p> <a href="https://publications.waset.org/abstracts/158513/short-term-effects-of-environmentally-relevant-concentrations-of-organic-uv-filters-on-signal-crayfish-pacifastacus-leniusculus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158513.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">105</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">2199</span> Nanoscale Metal-Organic Framework Coated Carbon Nitride Nanosheet for Combination Cancer Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rui%20Chen">Rui Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinfeng%20Zhang"> Jinfeng Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chun-Sing%20Lee"> Chun-Sing Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the past couple of decades, nanoscale metal-organic frameworks (NMOFs) have been highlighted as promising delivery platforms for biomedical applications, which combine many potent features such as high loading capacity, progressive biodegradability and low cytotoxicity. While NMOF has been extensively used as carriers for drugs of different modalities, so far there is no report on exploiting the advantages of NMOF for combination therapy. Herein, we prepared core-shell nanoparticles, where each nanoparticle contains a single graphitic-phase carbon nitride (g-C3N4) nanosheet encapsulated by a zeolitic-imidazolate frameworks-8 (ZIF-8) shell. The g-C3N4 nanosheets are effective visible-light photosensitizer for photodynamic therapy (PDT). When hosting DOX (doxorubicin), the as-synthesized core-shell nanoparticles could realize combinational photo-chemo therapy and provide dual-color fluorescence imaging. Therefore, we expect NMOFs-based core-shell nanoparticles could provide a new way to achieve much-enhanced cancer therapy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20nitride" title="carbon nitride">carbon nitride</a>, <a href="https://publications.waset.org/abstracts/search?q=combination%20therapy" title=" combination therapy"> combination therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20delivery" title=" drug delivery"> drug delivery</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoscale%20metal-organic%20frameworks" title=" nanoscale metal-organic frameworks"> nanoscale metal-organic frameworks</a> </p> <a href="https://publications.waset.org/abstracts/26681/nanoscale-metal-organic-framework-coated-carbon-nitride-nanosheet-for-combination-cancer-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26681.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">425</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">2198</span> Ionic Liquid 1-Butyl-3-Methylimidazolium Bromide as Reaction Medium for the Synthesis of Flavanones under Solvent-Free Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cecilia%20Espindola">Cecilia Espindola</a>, <a href="https://publications.waset.org/abstracts/search?q=Juan%20Carlos%20Palacios"> Juan Carlos Palacios</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flavonoids are a large group of natural compounds which are found in many fruits and vegetables. A subgroup of these called flavanones display a wide range of biological activities, and they also have an important physiological role in plants. The ionic liquid (ILs) are compounds consisting of an organic cation with an organic or inorganic anion. Due to its unique properties such as high electrical conductivity, wide temperature range of the liquid state, thermal and electrochemical stability, high ionic density and low volatility and flammability, are considered as ecological solvents in organic synthesis, catalysis, electrolytes in accumulators, and electrochemistry, non-volatile plasticizers, and chemical separation. It was synthesized ionic liquid IL 1-butyl-3-methylimidazolium bromide free-solvent and used as reaction medium for flavanones synthesis, under several reaction conditions of temperature, time and production. The obtained compounds were analyzed by melting point, elemental analysis, IR and UV-vis spectroscopy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=1-butyl-3-methylimidazolium%20bromide" title="1-butyl-3-methylimidazolium bromide">1-butyl-3-methylimidazolium bromide</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoids" title=" flavonoids"> flavonoids</a>, <a href="https://publications.waset.org/abstracts/search?q=free-solvent" title=" free-solvent"> free-solvent</a>, <a href="https://publications.waset.org/abstracts/search?q=IR%20spectroscopy" title=" IR spectroscopy"> IR spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/108195/ionic-liquid-1-butyl-3-methylimidazolium-bromide-as-reaction-medium-for-the-synthesis-of-flavanones-under-solvent-free-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108195.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">120</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">2197</span> Short-Term Exposing Effects of 4,4&#039;-DDT on Mitochondrial Electron Transport Complexes in Eyes of Zebrafish</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eun%20Ko">Eun Ko</a>, <a href="https://publications.waset.org/abstracts/search?q=Moonsung%20Choi"> Moonsung Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sooim%20Shin"> Sooim Shin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 4,4’-Dichlorodiphenyltrichloroethane (4,4’-DDT) is colorless, odorless organochlorine and known as persistent toxic organic pollutant accumulated in organs. In this study, effects of 4,4’-DDT on activities of mitochondrial electron transport chain system was analyzed. 4,4’-DDT is directly treated to isolated mitochondria from eyes of zebrafish and then activities of mitochondrial complex I, II, III, IV were measured spectrophotometrically. The reaction was proceeded immediately after adding 4,4’-DDT to examine the short-term exposing effects of persistent organic pollutant. As a result, high concentration of 4,4’-DDT treated mitochondria exhibited slightly enhanced activity in all complexes than non-treated one except complex III in male. Particularly, 4,4’-DDT was more effective on enzymatic activity in mitochondria isolated from eyes of male zebrafish. These results represented that 4,4’-DDT might temporarily induce to open up ion channel on isolated mitochondria resulting in increasing the functional activity of mitochondrial electron transport chain system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electron%20transport%20chain" title="electron transport chain">electron transport chain</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondrial%20function" title=" mitochondrial function"> mitochondrial function</a>, <a href="https://publications.waset.org/abstracts/search?q=persistent%20organic%20pollutant" title=" persistent organic pollutant"> persistent organic pollutant</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrophotometric%20assay" title=" spectrophotometric assay"> spectrophotometric assay</a>, <a href="https://publications.waset.org/abstracts/search?q=zebrafish" title=" zebrafish "> zebrafish </a> </p> <a href="https://publications.waset.org/abstracts/77446/short-term-exposing-effects-of-44-ddt-on-mitochondrial-electron-transport-complexes-in-eyes-of-zebrafish" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77446.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">228</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">2196</span> Production of Pour Point Depressant for Paraffinic Crude Oils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mosaad%20Attia%20Elkasaby">Mosaad Attia Elkasaby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The crude oil contains paraffines, aromatics, and asphaltenes in addition to some organic impurities, with increasing demands to reduce the cost of crude oil production, the uses of a pour point depressant is mandatory to maintain good flow rate. The wax materials cause many problems during production, storage, and transport, especially at low temperature, as these waxes tend, at low temperatures, to precipitate on the wall lines, thus leads to the high viscosity of crude oil and impede the flow rate, which represents an additional burden for crude oil pumping system from the place of production to the refinery. There are many ways to solve this problem, including, but not limited to, heat the crude and the use of organic solvents. But one of the most important disadvantages of these methods is the high economic cost. The aim of this innovation is to manufacture some polymeric materials (polymers based on aniline) that are processed locally that can be used as a pour point depressant of crude oil. For the first time, polymer based on aniline is modified and used with a number of organic solvents and tested with solvent (Styrene). It was found that the polymer based on aniline, when modified, had full solubility in styrene, unlike other organic solvent that was used in the past, such as chloroform and toluene. We also used a new solvent (PONA) that is obtained from the process of hydrotreating and separation of straight run naphtha to dissolve polymer based on aniline as a pour point depressant of crude oil. This innovative include studies conducted on highly paraffinic crude oil (C.O.1 and C.O.2). On using concentration (2500 ppm) of polymer based on aniline, the pour point of crude oil has decreased from +33 to - 9°C in case of crude oil (C.O.1) and from + 42 to – 6°C in case crude oil (C.O.2) at the same concentration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PPD" title="PPD">PPD</a>, <a href="https://publications.waset.org/abstracts/search?q=aniline" title=" aniline"> aniline</a>, <a href="https://publications.waset.org/abstracts/search?q=paraffinic%20crude%20oils" title=" paraffinic crude oils"> paraffinic crude oils</a>, <a href="https://publications.waset.org/abstracts/search?q=polymers" title=" polymers"> polymers</a> </p> <a href="https://publications.waset.org/abstracts/159751/production-of-pour-point-depressant-for-paraffinic-crude-oils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159751.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">93</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">2195</span> Volatile Organic Compounds Detection by Surface Acoustic Wave Sensors with Nanoparticles Embedded in Polymer Sensitive Layers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristian%20Viespe">Cristian Viespe</a>, <a href="https://publications.waset.org/abstracts/search?q=Dana%20Miu"> Dana Miu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Surface acoustic wave (SAW) sensors with nanoparticles (NPs) of various dimensions and concentrations embedded in different types of polymer sensing films for detecting volatile organic compounds (VOCs) were studied. The sensors were ‘delay line’ type with a center frequency of 69.4 MHz on ST-X quartz substrates. NPs with different diameters of 7 nm or 13 nm were obtained by laser ablation with lasers having 5 ns or 10 ps pulse durations, respectively. The influence of NPs dimensions and concentrations on sensor properties such as frequency shift, sensitivity, noise and response time were investigated. To the best of our knowledge, the influence of NP dimensions on SAW sensor properties with has not been investigated. The frequency shift and sensitivity increased with increasing NP concentration in the polymer for a given NP dimension and with decreasing NP diameter for a given concentration. The best performances were obtained for the smallest NPs used. The SAW sensor with NPs of 7 nm had a limit of detection (LOD) of 65 ppm (almost five times better than the sensor with polymer alone), and a response time of about 9 s for ethanol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=surface%20acoustic%20wave%20sensor" title="surface acoustic wave sensor">surface acoustic wave sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=volatile%20organic%20compounds" title=" volatile organic compounds"> volatile organic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20ablation" title=" laser ablation"> laser ablation</a> </p> <a href="https://publications.waset.org/abstracts/100929/volatile-organic-compounds-detection-by-surface-acoustic-wave-sensors-with-nanoparticles-embedded-in-polymer-sensitive-layers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100929.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">150</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">2194</span> Impacts Of Salinity on Co2 Turnover in Some Gefara Soils of Libya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fathi%20Elyaagubi">Fathi Elyaagubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Salinization is a major threat to the productivity of agricultural land. The Gefara Plain located in the northwest of Libya; comprises about 80% of the total agricultural activity. The high water requirements for the populations and agriculture are depleting the groundwater aquifer, resulting in intrusion of seawater in the first few kilometers along the coast. Due to increasing salinity in the groundwater used for irrigation, the soils of the Gefara Plain are becoming increasingly saline. This research paper investigated the sensitivity of these soils to increased salinity using Co2 evolution as an integrating measure of soil function. Soil was collected from four sites located in the Gefara Plain, Almaya, Janzur, Gargaresh and Tajura. Soil collected from Tajura had the highest background salinity, and Janzur had the highest organic matter content. All of the soils had relatively low organic matter content, ranging between 0.49-%1.25. The cumulative rate of 14CO2 of added 14C-labelled Lolium shoots (Lolium perenne L.) to soils was decreased under effects of water containing different concentrations of NaCl at 20, 50, 70, 90, 150, and 200 mM compared to the control at any time of incubation in four sites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20salinity" title="soil salinity">soil salinity</a>, <a href="https://publications.waset.org/abstracts/search?q=gefara%20plain" title=" gefara plain"> gefara plain</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20matter" title=" organic matter"> organic matter</a>, <a href="https://publications.waset.org/abstracts/search?q=14C-labelled%20lolium%20shoots" title=" 14C-labelled lolium shoots"> 14C-labelled lolium shoots</a> </p> <a href="https://publications.waset.org/abstracts/8205/impacts-of-salinity-on-co2-turnover-in-some-gefara-soils-of-libya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8205.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">221</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">2193</span> Study of Hybrid Cells Based on Perovskite Materials Using Oghmasimultion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Bachir%20%28Dahmani%29">Nadia Bachir (Dahmani)</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Zohra%20Otmani"> Fatima Zohra Otmani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to its interesting optoelectronic properties, methylammonium perovskite CH3NH3PbI3 is used as the active layer in the development of several solar cells. In this work, the hybrid (organic-inorganic) cell with the architecture FTO/pedotpss/CH3NH3PbI3/pcdtbt/Al is simulated using the Organic and Hybrid Material Nano Simulation Tool (OghmaNano). We studied the influence of certain parameters, such as thickness, on the characteristics of the solar cell. The effect of the device temperature was also investigated. The photovoltaic characteristic curves, such as current-voltage (j-V), are presented in this work. The optimized final parameters are Voc = 0.947 V, FF = 0.8034%, and PCE = 23.16%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OghmaNano%20software" title="OghmaNano software">OghmaNano software</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20perovskite%20cell" title=" hybrid perovskite cell"> hybrid perovskite cell</a>, <a href="https://publications.waset.org/abstracts/search?q=CH3NH3PbI3" title=" CH3NH3PbI3"> CH3NH3PbI3</a>, <a href="https://publications.waset.org/abstracts/search?q=conversion%20efficiency" title=" conversion efficiency"> conversion efficiency</a> </p> <a href="https://publications.waset.org/abstracts/193533/study-of-hybrid-cells-based-on-perovskite-materials-using-oghmasimultion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193533.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">14</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">2192</span> Magnetic Solvent Extraction Using Nanoparticles Coated by Oleic Acid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nat%C3%A1lia%20C.%20C.%20Lobato">Natália C. C. Lobato</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%82ngela%20M.%20Ferreira"> Ângela M. Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20B.%20Mansur"> Marcelo B. Mansur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In solvent extraction operations, large sedimentation areas in the mixer-settler are required when the disengagement of the aqueous and the organic phases is slow and/or difficult. The use of a magnetic organic liquid (also known as ferrofluid), consisting of magnetite nanoparticles coated by oleic acid dispersed in the organic diluent, has proven successful to speed up phase disengagement. The method, however, has never been used industrially; therefore, the aim of this study is to raise its main limitations. Tests were carried out using a ferrofluid containing 30 g/l of magnetite dissolved in commercial aliphatic kerosene Exxsol D80. The efficiency of cobalt extraction ([Co] = 1 g/l) with 10% v/v Cyanex 272 (bis-2,4,4-trimethylpentyl phosphinic acid) at changing pH of the aqueous phase (2 to 7) was found unaffected in the conditions studied. However, the chemical resistance of the ferrofluid in contact with deionized water at changing acidity (from 10-7 to 2 mol/l) revealed that the nanoparticles are not resistant when contacted to aqueous solutions with a pH ≤ 2. Such result represents a serious limitation to the applicability of the method mainly to hydrometallurgical systems because solvent extraction operations are normally done in acid conditions, therefore more effective strategies to coat the particles are required. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20solvent%20extraction" title="magnetic solvent extraction">magnetic solvent extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=oleic%20acid" title=" oleic acid"> oleic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetite%20nanoparticles" title=" magnetite nanoparticles"> magnetite nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=cyanex%20272" title=" cyanex 272"> cyanex 272</a> </p> <a href="https://publications.waset.org/abstracts/41603/magnetic-solvent-extraction-using-nanoparticles-coated-by-oleic-acid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41603.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">395</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">2191</span> A Comparative Study of Photo and Electro-Fenton Reactions Efficiency in Degradation of Cationic Dyes Mixture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Bouafia%20Chergui">S. Bouafia Chergui</a>, <a href="https://publications.waset.org/abstracts/search?q=Nihal%20Oturan"> Nihal Oturan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20Khalaf"> Hussein Khalaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20A.%20Oturan"> Mehmet A. Oturan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work was to compare the degradation of a mixture of three cationic dyes by advanced oxidation processes (electro-Fenton, photo-Fenton) in aqueous solution. These processes are based on the in situ production of hydroxyl radical, a highly strong oxidant, which allows the degradation of organic pollutants until their mineralization into CO2 and H2O. Under optimal operating conditions, the evolution of total organic carbon (TOC) and electrical energy efficiency have been investigated for the two processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photo-fenton" title="photo-fenton">photo-fenton</a>, <a href="https://publications.waset.org/abstracts/search?q=electro-fenton" title=" electro-fenton"> electro-fenton</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20treatment" title=" water treatment"> water treatment</a> </p> <a href="https://publications.waset.org/abstracts/32037/a-comparative-study-of-photo-and-electro-fenton-reactions-efficiency-in-degradation-of-cationic-dyes-mixture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32037.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">2190</span> Release of Legacy Persistent Organic Pollutants and Mitigating Their Effects in Downstream Communities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kimberley%20Rain%20Miner">Kimberley Rain Miner</a>, <a href="https://publications.waset.org/abstracts/search?q=Karl%20Kreutz"> Karl Kreutz</a>, <a href="https://publications.waset.org/abstracts/search?q=Larry%20LeBlanc"> Larry LeBlanc </a> </p> <p class="card-text"><strong>Abstract:</strong></p> During the period of 1950-1970 persistent organic pollutants such as DDT, dioxin and PCB were released in the atmosphere and distributed through precipitation into glaciers throughout the world. Recent abrupt climate change is increasing the melt rate of these glaciers, introducing the toxins to the watershed. Studies have shown the existence of legacy pollutants in glacial ice, but neither the impact nor quantity of these toxins on downstream populations has been assessed. If these pollutants are released at toxic levels it will be necessary to create a mitigation plan to lower their impact on the affected communities. <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=adaptation" title=" adaptation"> adaptation</a>, <a href="https://publications.waset.org/abstracts/search?q=mitigation" title=" mitigation"> mitigation</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management" title=" risk management"> risk management</a> </p> <a href="https://publications.waset.org/abstracts/33945/release-of-legacy-persistent-organic-pollutants-and-mitigating-their-effects-in-downstream-communities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33945.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">361</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">2189</span> Theoretical and Experimental Investigation of Fe and Ni-TCNQ on Graphene</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Shahsavar">A. Shahsavar</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Jakub"> Z. Jakub</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the outstanding properties of the 2D metal-organic frameworks (MOF), intensive computational and experimental studies have been done. However, the lack of fundamental studies of MOFs on the graphene backbone is observed. This work studies Fe and Ni as metal and tetracyanoquinodimethane (TCNQ) with a high electron affinity as an organic linker functionalized on graphene. Here we present DFT calculations results to unveil the electronic and magnetic properties of iron and nickel-TCNQ physisorbed on graphene. Adsorption and Fermi energies, structural, and magnetic properties will be reported. Our experimental observations prove Fe- and NiTCNQ@Gr/Ir(111) are thermally highly stable up to 500 and 250°C, respectively, making them promising materials for single-atom catalysts or high-density storage media. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene" title=" graphene"> graphene</a>, <a href="https://publications.waset.org/abstracts/search?q=MTCNQ" title=" MTCNQ"> MTCNQ</a>, <a href="https://publications.waset.org/abstracts/search?q=self-assembly" title=" self-assembly"> self-assembly</a> </p> <a href="https://publications.waset.org/abstracts/151583/theoretical-and-experimental-investigation-of-fe-and-ni-tcnq-on-graphene" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151583.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 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