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Kumar</title> <meta name="description" content="Search results for: Naresh Kumar"> <meta name="keywords" content="Naresh Kumar"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Naresh Kumar"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1706</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Naresh Kumar</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1676</span> Temperature Dependent Tribological Properties of Graphite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pankaj%20Kumar%20Das">Pankaj Kumar Das</a>, <a href="https://publications.waset.org/abstracts/search?q=Niranjan%20Kumar"> Niranjan Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Prasun%20Chakraborti"> Prasun Chakraborti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Temperature dependent tribologiocal properties of nuclear grade turbostatic graphite were studied using 100Cr6 steel counterbody. High value of friction coefficient (0.25) and high wear loss was observed at room temperature and this value decreased to 0.1 at 150oC. Consequently, wear loss is also decreased. Such behavior is explained by oxidation/vaporization of graphite and water molecules. At room temperature, the adsorbed water in graphite does not decompose and effect of passivation mechanism does not work. However, at 150oC, the water decomposed into OH, atomic hydrogen and oxygen which efficiently passivates the carbon dangling bonds. This effect is known to decrease the energy of the contact and protect against abrasive wear. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20temperature%20tribology" title="high temperature tribology">high temperature tribology</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidation" title=" oxidation"> oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=turbostratic%20graphite" title=" turbostratic graphite"> turbostratic graphite</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear "> wear </a> </p> <a href="https://publications.waset.org/abstracts/26767/temperature-dependent-tribological-properties-of-graphite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26767.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">514</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">1675</span> Investigations into Effect of Neural Network Predictive Control of UPFC for Improving Transient Stability Performance of Multimachine Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sheela%20Tiwari">Sheela Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Naresh"> R. Naresh</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Jha"> R. Jha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents an investigation into the effect of neural network predictive control of UPFC on the transient stability performance of a multi-machine power system. The proposed controller consists of a neural network model of the test system. This model is used to predict the future control inputs using the damped Gauss-Newton method which employs ‘backtracking’ as the line search method for step selection. The benchmark 2 area, 4 machine system that mimics the behavior of large power systems is taken as the test system for the study and is subjected to three phase short circuit faults at different locations over a wide range of operating conditions. The simulation results clearly establish the robustness of the proposed controller to the fault location, an increase in the critical clearing time for the circuit breakers and an improved damping of the power oscillations as compared to the conventional PI controller. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=identification" title="identification">identification</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=predictive%20control" title=" predictive control"> predictive control</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20stability" title=" transient stability"> transient stability</a>, <a href="https://publications.waset.org/abstracts/search?q=UPFC" title=" UPFC "> UPFC </a> </p> <a href="https://publications.waset.org/abstracts/2140/investigations-into-effect-of-neural-network-predictive-control-of-upfc-for-improving-transient-stability-performance-of-multimachine-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2140.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">371</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">1674</span> A Geochemical Perspective on A-Type Granites of Khanak and Devsar Areas, Haryana, India: Implications for Petrogenesis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar">Naresh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Radhika%20Sharma"> Radhika Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20K.%20Singh"> A. K. Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Granites from Khanak and Devsar areas, a part of Malani Igneous Suite (MIS) were investigated for their geochemical characteristics to understand the petrogenetic aspect of the research area. Neoproterozoic rocks of MIS are well exposed in Jhunjhunu, Jodhpur, Pali, Barmer, Jalor, Jaisalmer districts of Rajasthan and Bhiwani district of Haryana and also occur at Kirana hills of Pakistan. The MIS predominantly consists of acidic volcanic with acidic plutonic (granite of various types), mafic volcanic, mafic intrusive and minor amount of pyroclasts. Based on the field and petrographical studies, 28 samples were selected and analyzed for geochemical analysis of major, trace and rare earth elements at the Wadia Institute of Himalayan Geology, Dehradun by X-Ray Fluorescence Spectrometer (XRF) and ICP-MS (Inductively Coupled Plasma- Mass Spectrometry). Granites from the studied areas are categorized as grey, green and pink. Khanak granites consist of quartz, k-feldspar, plagioclase, and biotite as essential minerals and hematite, zircon, annite, monazite & rutile as accessory minerals. In Devsar granites, plagioclase is replaced by perthite and occurs as dominantly. Geochemically, granites from Khanak and Devsar areas exhibit typical A-type granites characteristics with their enrichment in SiO2, Na2O+K2O, Fe/Mg, Rb, Zr, Y, Th, U, REE (except Eu) and significant depletion in MgO, CaO, Sr, P, Ti, Ni, Cr, V and Eu suggested about A-type affinities in Northwestern Peninsular India. The amount of heat production (HP) in green and grey granites of Devsar area varies upto 9.68 & 11.70 μWm-3 and total heat generation unit (HGU) i.e. 23.04 & 27.86 respectively. Pink granites of Khanak area display a higher enrichment of HP (16.53 μWm-3) and HGU (39.37) than the granites from Devsar area. Overall, they have much higher values of HP and HGU than the average value of continental crust (3.8 HGU), which imply a possible linear relationship among the surface heat flow and crustal heat generation in the rocks of MIS. Chondrite-normalized REE patterns show enriched LREE, moderate to strong negative Eu anomalies and more or less flat heavy REE. In primitive mantle-normalized multi-element variation diagrams, the granites show pronounced depletions in the high-field-strength elements (HFSE) Nb, Zr, Sr, P, and Ti. Geochemical characteristics (major, trace and REE) along with the use of various discrimination schemes revealed their probable correspondence to magma derived from the crustal origin by a different degree of partial melting. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=A-type%20granite" title="A-type granite">A-type granite</a>, <a href="https://publications.waset.org/abstracts/search?q=neoproterozoic" title=" neoproterozoic"> neoproterozoic</a>, <a href="https://publications.waset.org/abstracts/search?q=Malani%20igneous%20suite" title=" Malani igneous suite"> Malani igneous suite</a>, <a href="https://publications.waset.org/abstracts/search?q=Khanak" title=" Khanak"> Khanak</a>, <a href="https://publications.waset.org/abstracts/search?q=Devsar" title=" Devsar"> Devsar</a> </p> <a href="https://publications.waset.org/abstracts/68565/a-geochemical-perspective-on-a-type-granites-of-khanak-and-devsar-areas-haryana-india-implications-for-petrogenesis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68565.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">272</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">1673</span> Modeling and Simulation of Underwater Flexible Manipulator as Raleigh Beam Using Bond Graph</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sumit%20Kumar">Sumit Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20Kumar"> Sunil Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Chandan%20Deep%20Singh"> Chandan Deep Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents modeling and simulation of flexible robot in an underwater environment. The underwater environment completely contrasts with ground or space environment. The robot in an underwater situation is subjected to various dynamic forces like buoyancy forces, hydrostatic and hydrodynamic forces. The underwater robot is modeled as Rayleigh beam. The developed model further allows estimating the deflection of tip in two directions. The complete dynamics of the underwater robot is analyzed, which is the main focus of this investigation. The control of robot trajectory is not discussed in this paper. Simulation is performed using Symbol Shakti software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bond%20graph%20modeling" title="bond graph modeling">bond graph modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamics.%20modeling" title=" dynamics. modeling"> dynamics. modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=rayleigh%20beam" title=" rayleigh beam"> rayleigh beam</a>, <a href="https://publications.waset.org/abstracts/search?q=underwater%20robot" title=" underwater robot"> underwater robot</a> </p> <a href="https://publications.waset.org/abstracts/33594/modeling-and-simulation-of-underwater-flexible-manipulator-as-raleigh-beam-using-bond-graph" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33594.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">586</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">1672</span> Surface-Quenching Induced Cell Opening Technique in Extrusion of Thermoplastic Foamed Sheets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abhishek%20Gandhi">Abhishek Gandhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Naresh%20Bhatnagar"> Naresh Bhatnagar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, a new technique has been developed to manufacture open cell extruded thermoplastic foamed sheets with the aid of extrudate surface-quenching phenomenon. As the extrudate foam exits the die, its surface is rapidly quenched which results in freezing of cells on the surface, while the cells at the core continue to grow and leads to development of open-cellular microstructure at the core. Influence of chill roll temperature was found to be extremely significant in developing porous morphological attributes. Subsequently, synergistic effect of blowing agent content and chill roll temperature was examined for their expansion ratio and open-cell microstructure. Further, chill roll rotating speed was found extremely significant in obtaining open-cellular foam structures. This study intends to enhance the understanding of researchers working in the area of open-cell foam processing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=foams" title="foams">foams</a>, <a href="https://publications.waset.org/abstracts/search?q=porous%20materials" title=" porous materials"> porous materials</a>, <a href="https://publications.waset.org/abstracts/search?q=morphology" title=" morphology"> morphology</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=microscopy" title=" microscopy"> microscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=open-cell%20foams" title=" open-cell foams"> open-cell foams</a> </p> <a href="https://publications.waset.org/abstracts/18675/surface-quenching-induced-cell-opening-technique-in-extrusion-of-thermoplastic-foamed-sheets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18675.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">448</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">1671</span> To Individualisation of Subject, Donar, by Determination of Serological Markers from Obtain Biological Fluid at Crime Scene</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arun%20Kumar">Arun Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ravindra%20Pal%20Verma"> Ravindra Pal Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Harsh%20Sharma"> Harsh Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Shani%20Kumar"> Shani Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the present study samples was collected from 20 donors with unknown blood group and secretor status had been determined from saliva by using biological fluid. ABO typing on the concentrated samples was successfully performed after 1 month of storage. Urine stained clothing samples are often submitted to forensic science laboratories for ABH blood group antigen determination. The serogenetic markers of semen stains submitted can be used to determine the origin of any of these samples. ABH blood group substances have previously been identified from urine. ABH blood group substance is low in urine in comparison with other body fluids. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ABH%20blood%20group" title="ABH blood group">ABH blood group</a>, <a href="https://publications.waset.org/abstracts/search?q=crime%20scene" title=" crime scene"> crime scene</a>, <a href="https://publications.waset.org/abstracts/search?q=serological%20markers" title=" serological markers"> serological markers</a>, <a href="https://publications.waset.org/abstracts/search?q=body%20fluids%20and%20urine" title=" body fluids and urine"> body fluids and urine</a> </p> <a href="https://publications.waset.org/abstracts/45691/to-individualisation-of-subject-donar-by-determination-of-serological-markers-from-obtain-biological-fluid-at-crime-scene" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45691.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">587</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">1670</span> Biosorption of Phenol onto Water Hyacinth Activated Carbon: Kinetics and Isotherm Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manoj%20Kumar%20Mahapatra">Manoj Kumar Mahapatra</a>, <a href="https://publications.waset.org/abstracts/search?q=Arvind%20Kumar"> Arvind Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Batch adsorption experiments were carried out for the removal of phenol from its aqueous solution using water hyancith activated carbon (WHAC) as an adsorbent. The sorption kinetics were analysed using pseudo-first order kinetics and pseudo-second order model, and it was observed that the sorption data tend to fit very well in pseudo-second order model for the entire sorption time. The experimental data were analyzed by the Langmuir and Freundlich isotherm models. Equilibrium data fitted well to the Freundlich model with a maximum biosorption capacity of 31.45 mg/g estimated using Langmuir model. The adsorption intensity 3.7975 represents a favorable adsorption condition. <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=isotherm" title=" isotherm"> isotherm</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetics" title=" kinetics"> kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=phenol" title=" phenol"> phenol</a> </p> <a href="https://publications.waset.org/abstracts/56589/biosorption-of-phenol-onto-water-hyacinth-activated-carbon-kinetics-and-isotherm-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56589.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">444</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">1669</span> Field Experience with Sweep Frequency Response Analysis for Power Transformer Diagnosis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ambuj%20Kumar">Ambuj Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20Kumar%20Singh"> Sunil Kumar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Shrikant%20Singh"> Shrikant Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Zakir%20Husain"> Zakir Husain</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20K.%20Jarial"> R. K. Jarial</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sweep frequency response analysis has been turning out a powerful tool for investigation of mechanical as well as electrical integration of transformers. In this paper various aspect of practical application of SFRA has been studied. Open circuit and short circuit measurement were done on different phases of high voltage and low voltage winding. A case study was presented for the transformer of rating 31.5 MVA for various frequency ranges. A clear picture was presented for sub- frequency ranges for HV as well as LV winding. The main motive of work is to investigate high voltage short circuit response. The theoretical concept about SFRA responses is validated with expert system software results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=transformer%20winding" title="transformer winding">transformer winding</a>, <a href="https://publications.waset.org/abstracts/search?q=SFRA" title=" SFRA"> SFRA</a>, <a href="https://publications.waset.org/abstracts/search?q=OCT%20%26%20SCT" title=" OCT & SCT"> OCT & SCT</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20deviation" title=" frequency deviation"> frequency deviation</a> </p> <a href="https://publications.waset.org/abstracts/27973/field-experience-with-sweep-frequency-response-analysis-for-power-transformer-diagnosis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27973.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">957</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">1668</span> A Double Epilayer PSGT Trench Power MOSFETs for Low to Medium Voltage Power Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alok%20Kumar%20Kamal">Alok Kumar Kamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Vinod%20Kumar"> Vinod Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The trench gate MOSFET has shown itself as the most appropriate power device for low to medium voltage power applications due to its lowest possible ON resistance among all power semiconductor devices. In this research work a double-epilayer PSGT structure using a thin layer of N+ polysilicon as gate material. The total ON-state resistance (RON) of UMOSFET can be reduced by optimizing the epilayer thickness. The optimized structure of Double-Epilayer exhibits a 25.8% reduction in the ON-state resistance at Vgs=5V and improving the switching characteristics by reducing the Reverse transfer capacitance (Cgd) by 7.4%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Miller-capacitance" title="Miller-capacitance">Miller-capacitance</a>, <a href="https://publications.waset.org/abstracts/search?q=double-Epilayer%3Bswitching%20characteristics" title=" double-Epilayer;switching characteristics"> double-Epilayer;switching characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20trench%20MOSFET%20%28U-MOSFET%29" title=" power trench MOSFET (U-MOSFET)"> power trench MOSFET (U-MOSFET)</a>, <a href="https://publications.waset.org/abstracts/search?q=on-state%20resistance" title=" on-state resistance"> on-state resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=blocking%20voltage" title=" blocking voltage"> blocking voltage</a> </p> <a href="https://publications.waset.org/abstracts/183038/a-double-epilayer-psgt-trench-power-mosfets-for-low-to-medium-voltage-power-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183038.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">72</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">1667</span> An Investigation on Energy Absorption Capacity of a Composite Metal Foam Developed from Aluminum by Reinforcing with Cermet Hollow Spheres</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fisseha%20Zewdie">Fisseha Zewdie</a>, <a href="https://publications.waset.org/abstracts/search?q=Naresh%20Bhatnagar"> Naresh Bhatnagar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lightweight and strong aluminum foam is developed by reinforcing Al-Si-Cu alloy (LM24) with Cermet Hollow Spheres (CHS) as porous creating agents. The foam samples were prepared by mixing the CHS in molten LM24 at 750°C, using gravity and stir casting. The CHSs were fabricated using a blend of silicon carbide and stainless-steel powders using the powder metallurgy technique. It was found that CHS reinforcement greatly enhances the performance of the composite metal foam, making it suitable for high impact loading applications such as crash protection and shock absorption. This study examined the strength, density, energy absorption and possible applications of the new aluminum foam. The results revealed that the LM24 foam reinforced with the CHS has the highest energy absorption of about 88 MJ/m3 among all categories of foam samples tested. Its density was found to be 1.3 g/cm3, while the strength, densification strains and porosity were 420 MPa, 34% and 70%, respectively. Besides, the matrix and reinforcement's microstructure, chemical composition, X-ray diffraction, HRTEM and related micrographic analyses are performed for characterization and verifications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20metal%20foam" title="composite metal foam">composite metal foam</a>, <a href="https://publications.waset.org/abstracts/search?q=hollow%20spheres" title=" hollow spheres"> hollow spheres</a>, <a href="https://publications.waset.org/abstracts/search?q=gravity%20casting" title=" gravity casting"> gravity casting</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20absorption" title=" energy absorption"> energy absorption</a> </p> <a href="https://publications.waset.org/abstracts/179310/an-investigation-on-energy-absorption-capacity-of-a-composite-metal-foam-developed-from-aluminum-by-reinforcing-with-cermet-hollow-spheres" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179310.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">71</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">1666</span> Extraction of Strontium Ions through Ligand Assisted Ionic Liquids</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Kumar">Pradeep Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Abhishek%20Kumar%20Chandra"> Abhishek Kumar Chandra</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Khanna"> Ashok Khanna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Extraction of Strontium by crown ether (DCH18C6) hasbeen investigated in [BMIM][TF2N] Ionic Liquid (IL) giving higher extraction ~98% and distribution ratio as compared to other organic solvents (Dodecane, Hexane, & Isodecyl alcohol + Dodecane). Distribution ratio of Sr in IL at 0.15M DCH18C6 indicates an enhancement of 20000, 2000, 500 times over Dodecane, Hexane and 5% Isodecyl Alcohol + 95 % Dodecane at 0.01M aqueous acidity respectively. In presence of IL, Sr extraction decreases with increase in HNO3 concentration in aqueous phase whereas opposite trend was observed with organic solvents.Extraction of Sr initially increases with increase in DCH18C6 concentration in IL, finally reaching an asymptotic constant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=distribution%20ratio" title="distribution ratio">distribution ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=ligand" title=" ligand"> ligand</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20solvent" title=" organic solvent"> organic solvent</a>, <a href="https://publications.waset.org/abstracts/search?q=stripping" title=" stripping"> stripping</a> </p> <a href="https://publications.waset.org/abstracts/76098/extraction-of-strontium-ions-through-ligand-assisted-ionic-liquids" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76098.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">443</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1665</span> Surface Roughness Effects in Pure Sliding EHL Line Contacts with Carreau-Type Shear-Thinning Lubricants</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Punit%20Kumar">Punit Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Niraj%20Kumar"> Niraj Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of transverse surface roughness on EHL characteristics has been investigated numerically using an extensive set of full EHL line contact simulations for shear-thinning lubricants under pure sliding condition. The shear-thinning behavior of lubricant is modeled using Carreau viscosity equation along with Doolittle-Tait equation for lubricant compressibility. The surface roughness is assumed to be sinusoidal and it is present on the stationary surface. It is found that surface roughness causes sharp pressure peaks along with reduction in central and minimum film thickness. With increasing amplitude of surface roughness, the minimum film thickness decreases much more rapidly as compared to the central film thickness. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EHL" title="EHL">EHL</a>, <a href="https://publications.waset.org/abstracts/search?q=Carreau" title=" Carreau"> Carreau</a>, <a href="https://publications.waset.org/abstracts/search?q=shear-thinning" title=" shear-thinning"> shear-thinning</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20roughness" title=" surface roughness"> surface roughness</a>, <a href="https://publications.waset.org/abstracts/search?q=amplitude" title=" amplitude"> amplitude</a>, <a href="https://publications.waset.org/abstracts/search?q=wavelength" title=" wavelength"> wavelength</a> </p> <a href="https://publications.waset.org/abstracts/6356/surface-roughness-effects-in-pure-sliding-ehl-line-contacts-with-carreau-type-shear-thinning-lubricants" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6356.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">731</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">1664</span> A Review of Fractal Dimension Computing Methods Applied to Wear Particles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manish%20Kumar%20Thakur">Manish Kumar Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Subrata%20Kumar%20Ghosh"> Subrata Kumar Ghosh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Various types of particles found in lubricant may be characterized by their fractal dimension. Some of the available methods are: yard-stick method or structured walk method, box-counting method. This paper presents a review of the developments and progress in fractal dimension computing methods as applied to characteristics the surface of wear particles. An overview of these methods, their implementation, their advantages and their limits is also present here. It has been accepted that wear particles contain major information about wear and friction of materials. Morphological analysis of wear particles from a lubricant is a very effective way for machine condition monitoring. Fractal dimension methods are used to characterize the morphology of the found particles. It is very useful in the analysis of complexity of irregular substance. The aim of this review is to bring together the fractal methods applicable for wear particles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fractal%20dimension" title="fractal dimension">fractal dimension</a>, <a href="https://publications.waset.org/abstracts/search?q=morphological%20analysis" title=" morphological analysis"> morphological analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a>, <a href="https://publications.waset.org/abstracts/search?q=wear%20particles" title=" wear particles"> wear particles</a> </p> <a href="https://publications.waset.org/abstracts/48239/a-review-of-fractal-dimension-computing-methods-applied-to-wear-particles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48239.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">490</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">1663</span> Design and Optimization of a Mini High Altitude Long Endurance (HALE) Multi-Role Unmanned Aerial Vehicle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vishaal%20Subramanian">Vishaal Subramanian</a>, <a href="https://publications.waset.org/abstracts/search?q=Annuatha%20Vinod%20Kumar"> Annuatha Vinod Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Santosh%20Kumar%20Budankayala"> Santosh Kumar Budankayala</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Senthil%20Kumar"> M. Senthil Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses the aerodynamic and structural design, simulation and optimization of a mini-High Altitude Long Endurance (HALE) UAV. The applications of this mini HALE UAV vary from aerial topological surveys, quick first aid supply, emergency medical blood transport, search and relief activates to border patrol, surveillance and estimation of forest fire progression. Although classified as a mini UAV according to UVS International, our design is an amalgamation of the features of ‘mini’ and ‘HALE’ categories, combining the light weight of the ‘mini’ and the high altitude ceiling and endurance of the HALE. Designed with the idea of implementation in India, it is in strict compliance with the UAS rules proposed by the office of the Director General of Civil Aviation. The plane can be completely automated or have partial override control and is equipped with an Infra-Red camera and a multi coloured camera with on-board storage or live telemetry, GPS system with Geo Fencing and fail safe measures. An additional of 1.5 kg payload can be attached to three major hard points on the aircraft and can comprise of delicate equipment or releasable payloads. The paper details the design, optimization process and the simulations performed using various software such as Design Foil, XFLR5, Solidworks and Ansys. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aircraft" title="aircraft">aircraft</a>, <a href="https://publications.waset.org/abstracts/search?q=endurance" title=" endurance"> endurance</a>, <a href="https://publications.waset.org/abstracts/search?q=HALE" title=" HALE"> HALE</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20altitude" title=" high altitude"> high altitude</a>, <a href="https://publications.waset.org/abstracts/search?q=long%20range" title=" long range"> long range</a>, <a href="https://publications.waset.org/abstracts/search?q=UAV" title=" UAV"> UAV</a>, <a href="https://publications.waset.org/abstracts/search?q=unmanned%20aerial%20vehicle" title=" unmanned aerial vehicle"> unmanned aerial vehicle</a> </p> <a href="https://publications.waset.org/abstracts/57692/design-and-optimization-of-a-mini-high-altitude-long-endurance-hale-multi-role-unmanned-aerial-vehicle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57692.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">396</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">1662</span> Hydro-Chemical Characterization of Glacial Melt Waters Draining from Shaune Garang Glacier, Himachal Himalaya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramesh%20Kumar">Ramesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajesh%20Kumar"> Rajesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaktiman%20Singh"> Shaktiman Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Atar%20Singh"> Atar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Anshuman%20Bhardwaj"> Anshuman Bhardwaj</a>, <a href="https://publications.waset.org/abstracts/search?q=Ravindra%20Kumar%20Sinha"> Ravindra Kumar Sinha</a>, <a href="https://publications.waset.org/abstracts/search?q=Anupma%20Kumari"> Anupma Kumari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A detailed study of the ion chemistry of the Shaune Garnag glacier meltwater has been carried out to assess the role of active glacier in the chemical denudation rate. The chemical compositions of various ions in meltwater of the Shaune Garang glacier were analyzed during the melting period 2015 and 2016. Total 112 of melt water samples twice in a day were collected during ablation season of 2015 and 2016. To identify various factors controlling the dissolved ionic strength of Shaune Garang Glacier meltwater statistical analysis such as correlation matrix, Principle Component Analysis (PCA) and factor analysis were applied to deduce the result. Cation concentration for Ca²⁺ > Mg²⁺ > Na⁺ > K⁺ in the meltwater for both the years can be arranged in the order as Ca²⁺ > Mg²⁺ > Na⁺ > K⁺. Study showed that Ca²⁺ and HCO₃⁻ found to be dominant on the both melting period. Carbonate weathering identified as the dominant process controlling the dissolved ion chemistry of meltwater due to the high ratios of (Ca²⁺ + Mg²⁺) versus TZ+ and (Ca²⁺ + Mg²⁺) versus (Na⁺ + K⁺) in the study area. The cation denudation rate of the Shaune Garnag catchment is 3412.2 m⁻² a⁻¹, i.e. higher than the other glacierised catchment in the Himalaya, indicating intense chemical erosion in this catchment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shaune%20Garang%20glacier" title="Shaune Garang glacier">Shaune Garang glacier</a>, <a href="https://publications.waset.org/abstracts/search?q=Hydrochemistry" title=" Hydrochemistry"> Hydrochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20composition" title=" chemical composition"> chemical composition</a>, <a href="https://publications.waset.org/abstracts/search?q=cation%20denudation%20rate" title=" cation denudation rate"> cation denudation rate</a>, <a href="https://publications.waset.org/abstracts/search?q=carbonate%20weathering" title=" carbonate weathering"> carbonate weathering</a> </p> <a href="https://publications.waset.org/abstracts/73612/hydro-chemical-characterization-of-glacial-melt-waters-draining-from-shaune-garang-glacier-himachal-himalaya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73612.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">376</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">1661</span> Comparison of Different Methods of Evaluating Nozzle Junction Stresses under External Loads</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vinod%20Kumar">Vinod Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Arun%20Kumar"> Arun Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Surjit%20Angra"> Surjit Angra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper addresses the junction stress analysis of orthogonally intersecting thin walled cylindrical shell and thin walled cylindrical nozzle subjected to external loading on nozzle. Junction stresses have been calculated theoretically by welding research council (WRC) bulletins 107 and 297 for different nozzle loads. WRC bulletins 107 and 297 have been used by design engineers for calculating nozzle-vessel junction stresses since their publication. They give simple empirical relations and easy in application. Also 3D FEA in which material is elastic has been done in ANSYS software with 8 node solid element model and results of FEA have been compared with WRC results. Stress intensities obtained by WRC 297 are generally slightly higher than obtained by WRC 107. Membrane stresses obtained by FEA are much higher than WRC and membrane plus bending stresses obtained by FEA are lower than WRC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FEA" title="FEA">FEA</a>, <a href="https://publications.waset.org/abstracts/search?q=junction%20stress" title=" junction stress"> junction stress</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20element" title=" solid element"> solid element</a>, <a href="https://publications.waset.org/abstracts/search?q=WRC%20107" title=" WRC 107"> WRC 107</a>, <a href="https://publications.waset.org/abstracts/search?q=WRC%20297" title=" WRC 297"> WRC 297</a> </p> <a href="https://publications.waset.org/abstracts/4917/comparison-of-different-methods-of-evaluating-nozzle-junction-stresses-under-external-loads" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4917.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">579</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">1660</span> Hybrid Treatment Method for Decolorization of Mixed Dyes: Rhodamine-B, Brilliant Green and Congo Red</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Naresh%20Yadav">D. Naresh Yadav</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Anand%20Kishore"> K. Anand Kishore</a>, <a href="https://publications.waset.org/abstracts/search?q=Bhaskar%20Bethi"> Bhaskar Bethi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shirish%20H.%20Sonawane"> Shirish H. Sonawane</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Bhagawan"> D. Bhagawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The untreated industrial wastewater discharged into the environment causes the contamination of soil, water and air. Advanced treatment methods for enhanced wastewater treatment are attracting substantial interest among the currently employed unit processes in wastewater treatment. The textile industry is one of the predominant in wastewater production at current industrialized situation. The refused dyes at textile industry need to be treated in proper manner before its discharge into water bodies. In the present investigation, hybrid treatment process has been developed for the treatment of synthetic mixed dye wastewater. Photocatalysis and ceramic nanoporous membrane are mainly used for process integration to minimize the fouling and increase the flux. Commercial semiconducting powders (TiO2 and ZnO) has used as a nano photocatalyst for the degradation of mixed dye in the hybrid system. Commercial ceramic nanoporous tubular membranes have been used for the rejection of dye and suspended catalysts. Photocatalysis with catalyst has shown the average of 34% of decolorization (RB-32%, BG-34% and CR-36%), whereas ceramic nanofiltration has shown the 56% (RB-54%, BG-56% and CR-58%) of decolorization. Integration of photocatalysis and ceramic nanofiltration has shown 96% (RB-94%, BG-96% and CR-98%) of dye decolorization over 90 min of operation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title="photocatalysis">photocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=ceramic%20nanoporous%20membrane" title=" ceramic nanoporous membrane"> ceramic nanoporous membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater%20treatment" title=" wastewater treatment"> wastewater treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=advanced%20oxidation%20process" title=" advanced oxidation process"> advanced oxidation process</a>, <a href="https://publications.waset.org/abstracts/search?q=process%20integration" title=" process integration"> process integration</a> </p> <a href="https://publications.waset.org/abstracts/76768/hybrid-treatment-method-for-decolorization-of-mixed-dyes-rhodamine-b-brilliant-green-and-congo-red" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76768.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">264</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">1659</span> Performance and Emissions Analysis of Diesel Engine with Bio-Diesel of Waste Cooking Oils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mukesh%20Kumar">Mukesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Onkar%20Singh"> Onkar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Naveen%20Kumar"> Naveen Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Amar%20Deep"> Amar Deep</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The waste cooking oil is taken as feedstock for biodiesel production. For this research, waste cooking oil is collected from many hotels and restaurants, and then biodiesel is prepared for experimentation purpose. The prepared biodiesel is mixed with mineral diesel in the proportion of 10%, 20%, and 30% to perform tests on a diesel engine. The experimental analysis is carried out at different load conditions to analyze the impact of the blending ratio on the performance and emission parameters. When the blending proportion of biodiesel is increased, then the highest pressure reduces due to the fall in the calorific value of the blended mixture. Experimental analysis shows a promising decrease in nitrogen oxides (NOx). A mixture of 20% biodiesel and mineral diesel is the best negotiation, mixing ratio, and beyond that, a remarkable reduction in the outcome of the performance has been observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternative%20sources" title="alternative sources">alternative sources</a>, <a href="https://publications.waset.org/abstracts/search?q=diesel%20engine" title=" diesel engine"> diesel engine</a>, <a href="https://publications.waset.org/abstracts/search?q=emissions" title=" emissions"> emissions</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a> </p> <a href="https://publications.waset.org/abstracts/113446/performance-and-emissions-analysis-of-diesel-engine-with-bio-diesel-of-waste-cooking-oils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113446.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">179</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">1658</span> Dynamic Soil Structure Interaction in Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shreya%20Thusoo">Shreya Thusoo</a>, <a href="https://publications.waset.org/abstracts/search?q=Karan%20Modi"> Karan Modi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ankit%20Kumar%20Jha"> Ankit Kumar Jha</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajesh%20Kumar"> Rajesh Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since the evolution of computational tools and simulation software, there has been considerable increase in research on Soil Structure Interaction (SSI) to decrease the computational time and increase accuracy in the results. To aid the designer with a proper understanding of the response of structure in different soil types, the presented paper compares the deformation, shear stress, acceleration and other parameters of multi-storey building for a specific input ground motion using Response-spectrum Analysis (RSA) method. The response of all the models of different heights have been compared in different soil types. Finite Element Simulation software, ANSYS, has been used for all the computational purposes. Overall, higher response is observed with SSI, while it increases with decreasing stiffness of soil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil-structure%20interaction" title="soil-structure interaction">soil-structure interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=response%20spectrum" title=" response spectrum"> response spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=analysis" title=" analysis"> analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-storey%20buildings" title=" multi-storey buildings"> multi-storey buildings</a> </p> <a href="https://publications.waset.org/abstracts/49798/dynamic-soil-structure-interaction-in-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49798.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">480</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">1657</span> A Novel Method for Silence Removal in Sounds Produced by Percussive Instruments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Kishore%20Kumar">B. Kishore Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Rakesh%20Pogula"> Rakesh Pogula</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Kishore%20Kumar"> T. Kishore Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The steepness of an audio signal which is produced by the musical instruments, specifically percussive instruments is the perception of how high tone or low tone which can be considered as a frequency closely related to the fundamental frequency. This paper presents a novel method for silence removal and segmentation of music signals produced by the percussive instruments and the performance of proposed method is studied with the help of MATLAB simulations. This method is based on two simple features, namely the signal energy and the spectral centroid. As long as the feature sequences are extracted, a simple thresholding criterion is applied in order to remove the silence areas in the sound signal. The simulations were carried on various instruments like drum, flute and guitar and results of the proposed method were analyzed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=percussive%20instruments" title="percussive instruments">percussive instruments</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20energy" title=" spectral energy"> spectral energy</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20centroid" title=" spectral centroid"> spectral centroid</a>, <a href="https://publications.waset.org/abstracts/search?q=silence%20removal" title=" silence removal"> silence removal</a> </p> <a href="https://publications.waset.org/abstracts/14246/a-novel-method-for-silence-removal-in-sounds-produced-by-percussive-instruments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14246.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">411</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">1656</span> Study the Sloshing Phenomenon in the Tank Filled Partially with Liquid Using Computational Fluid Dynamics (CFD) Simulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amit%20Kumar">Amit Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaikumar%20V."> Jaikumar V.</a>, <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20A.%20G."> Pradeep A. G.</a>, <a href="https://publications.waset.org/abstracts/search?q=Shivakumar%20%20Bhavi"> Shivakumar Bhavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Amit Kumar, Jaikumar V, Pradeep AG, Shivakumar Bhavi Reducing sloshing is one of the major challenges in industries where transporting of liquid is involved. The present study investigates the sloshing effect for different liquid levels of 50% of the tank capacity. CFD simulation for two different baffle configurations has been carried out using a time-based multiphase Volume of fluid (VOF) scheme. Baffles were introduced to examine the sloshing effect inside the tank. Results were compared against the baseline case to assess the effectiveness of baffles; maximum liquid height over the period of the simulation was considered as the parameter for measuring the sloshing effect inside the tank. It was found that the addition of baffles reduced the sloshing effect inside the tank as compared to the baseline model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD" title="CFD">CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=sloshing" title=" sloshing"> sloshing</a>, <a href="https://publications.waset.org/abstracts/search?q=VOF" title=" VOF"> VOF</a>, <a href="https://publications.waset.org/abstracts/search?q=multiphase" title=" multiphase"> multiphase</a> </p> <a href="https://publications.waset.org/abstracts/143448/study-the-sloshing-phenomenon-in-the-tank-filled-partially-with-liquid-using-computational-fluid-dynamics-cfd-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143448.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">192</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">1655</span> A Multi-Release Software Reliability Growth Models Incorporating Imperfect Debugging and Change-Point under the Simulated Testing Environment and Software Release Time</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sujit%20Kumar%20Pradhan">Sujit Kumar Pradhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anil%20Kumar"> Anil Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Vijay%20Kumar"> Vijay Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The testing process of the software during the software development time is a crucial step as it makes the software more efficient and dependable. To estimate software’s reliability through the mean value function, many software reliability growth models (SRGMs) were developed under the assumption that operating and testing environments are the same. Practically, it is not true because when the software works in a natural field environment, the reliability of the software differs. This article discussed an SRGM comprising change-point and imperfect debugging in a simulated testing environment. Later on, we extended it in a multi-release direction. Initially, the software was released to the market with few features. According to the market’s demand, the software company upgraded the current version by adding new features as time passed. Therefore, we have proposed a generalized multi-release SRGM where change-point and imperfect debugging concepts have been addressed in a simulated testing environment. The failure-increasing rate concept has been adopted to determine the change point for each software release. Based on nine goodness-of-fit criteria, the proposed model is validated on two real datasets. The results demonstrate that the proposed model fits the datasets better. We have also discussed the optimal release time of the software through a cost model by assuming that the testing and debugging costs are time-dependent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=software%20reliability%20growth%20models" title="software reliability growth models">software reliability growth models</a>, <a href="https://publications.waset.org/abstracts/search?q=non-homogeneous%20Poisson%20process" title=" non-homogeneous Poisson process"> non-homogeneous Poisson process</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-release%20software" title=" multi-release software"> multi-release software</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20value%20function" title=" mean value function"> mean value function</a>, <a href="https://publications.waset.org/abstracts/search?q=change-point" title=" change-point"> change-point</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20factors" title=" environmental factors"> environmental factors</a> </p> <a href="https://publications.waset.org/abstracts/172552/a-multi-release-software-reliability-growth-models-incorporating-imperfect-debugging-and-change-point-under-the-simulated-testing-environment-and-software-release-time" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172552.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">74</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">1654</span> Beating Heart Coronary Artery Bypass Grafting on Intermittent Pump Support</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sushil%20Kumar%20Singh">Sushil Kumar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Vivek%20Tewarson"> Vivek Tewarson</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarvesh%20Kumar"> Sarvesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Shobhit%20Kumar"> Shobhit Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: ‘Beating Heart coronary artery bypass grafting on Intermittent Pump Support’ is a more reliable method of coronary revascularization that takes advantage of off and on-pump CABG while eliminating the disadvantage of both techniques. Methods: From January 2015 to December 2021, a new technique, “Intermittent On pump beating heart CABG” using a suction stabilizer was used by putting aortic and venous cannulas electively in all the patients. Patients were supported by a pump intermittently, as and when required (Group 1, n=254). Retrospective data were collected from our record of the patients who underwent off-pump CABG electively by the same surgeon and team (Group 2, n=254). Results: Significant advantage was noted in Group 1 patients in terms of the number of grafts (3.31 ± 1.16 vs. 2.30 ±0.66), grafting of lateral vessels (316 vs.202), mean operating time (1.37 ± 0.23 hrs vs. 2.22 ± 0.45 hrs) and postoperative blood loss (406.30 ± 257.90 ml vs. 567.41 ± 265.20 ml).CPB support time was less than 15 minutes in the majority of patients (n=179, 70.37 %), with a mean of 16.81 minutes. It was required, particularly during the grafting of lateral vessels. A rise in enzymes level (CRP, CKMB, Trop I, and NTPro BNP) was noted in Group 1 patients. But, these did not affect the postoperative course in patients. There was no mortality in Group 1 patients, while four patients in Group 2 died. Coclusions: Intermittent on-pump CABG technique is a promising method of surgical revascularization for all patients requiring CABG. It has shown its superiority in terms of safety, the number of grafts, operating time, and better perioperative course. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cardiopulmonary%20bypass" title="cardiopulmonary bypass">cardiopulmonary bypass</a>, <a href="https://publications.waset.org/abstracts/search?q=CABG" title=" CABG"> CABG</a>, <a href="https://publications.waset.org/abstracts/search?q=beating%20heart%20CABG" title=" beating heart CABG"> beating heart CABG</a>, <a href="https://publications.waset.org/abstracts/search?q=on-pump%20CABG" title=" on-pump CABG"> on-pump CABG</a> </p> <a href="https://publications.waset.org/abstracts/153762/beating-heart-coronary-artery-bypass-grafting-on-intermittent-pump-support" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153762.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">1653</span> Drum Scrubber Performance Assessment and Improvement to Achieve the Desired Product Quality</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Prateek%20Singh">Prateek Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Arun%20Kumar%20Pandey"> Arun Kumar Pandey</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Raghu%20Kumar"> C. Raghu Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Rath"> M. R. Rath</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20S.%20Reddy"> A. S. Reddy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Drum scrubber is widely used equipment in the washing of Iron ore. The purpose of the scrubber is to release the adhered fine clayey particles from the iron-bearing particles. Presently, the iron ore wash plants in the Eastern region of India consist of the scrubber, double deck screen followed by screw classifier as the main unit operations. Hence, scrubber performance efficiency has a huge impact on the downstream product quality. This paper illustrates the effect of scrubber feed % solids on scrubber performance and alumina distribution on downstream equipment. Further, it was established that scrubber performance efficiency could be defined as the ratio of the adhered particles (-0.15mm) released from scrubber feed during scrubbing operation with respect to the maximum possible release of -0.15mm (%) particles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=scrubber" title="scrubber">scrubber</a>, <a href="https://publications.waset.org/abstracts/search?q=adhered%20particles" title=" adhered particles"> adhered particles</a>, <a href="https://publications.waset.org/abstracts/search?q=feed%20%25%20solids" title=" feed % solids"> feed % solids</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a> </p> <a href="https://publications.waset.org/abstracts/146354/drum-scrubber-performance-assessment-and-improvement-to-achieve-the-desired-product-quality" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146354.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">138</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">1652</span> Numerical Investigation of Pressure Drop and Erosion Wear by Computational Fluid Dynamics Simulation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Praveen%20Kumar">Praveen Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Nitin%20Kumar"> Nitin Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hemant%20Kumar"> Hemant Kumar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The modernization of computer technology and commercial computational fluid dynamic (CFD) simulation has given better detailed results as compared to experimental investigation techniques. CFD techniques are widely used in different field due to its flexibility and performance. Evaluation of pipeline erosion is complex phenomenon to solve by numerical arithmetic technique, whereas CFD simulation is an easy tool to resolve that type of problem. Erosion wear behaviour due to solid–liquid mixture in the slurry pipeline has been investigated using commercial CFD code in FLUENT. Multi-phase Euler-Lagrange model was adopted to predict the solid particle erosion wear in 22.5° pipe bend for the flow of bottom ash-water suspension. The present study addresses erosion prediction in three dimensional 22.5° pipe bend for two-phase (solid and liquid) flow using finite volume method with standard <em>k-ε</em> turbulence, discrete phase model and evaluation of erosion wear rate with varying velocity 2-4 m/s. The result shows that velocity of solid-liquid mixture found to be highly dominating parameter as compared to solid concentration, density, and particle size. At low velocity, settling takes place in the pipe bend due to low inertia and gravitational effect on solid particulate which leads to high erosion at bottom side of pipeline. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computational%20fluid%20dynamics%20%28CFD%29" title="computational fluid dynamics (CFD)">computational fluid dynamics (CFD)</a>, <a href="https://publications.waset.org/abstracts/search?q=erosion" title=" erosion"> erosion</a>, <a href="https://publications.waset.org/abstracts/search?q=slurry%20transportation" title=" slurry transportation"> slurry transportation</a>, <a href="https://publications.waset.org/abstracts/search?q=k-%CE%B5%20Model" title=" k-ε Model"> k-ε Model</a> </p> <a href="https://publications.waset.org/abstracts/57647/numerical-investigation-of-pressure-drop-and-erosion-wear-by-computational-fluid-dynamics-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57647.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">408</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">1651</span> Bending Behaviour of Fiber Reinforced Polymer Composite Stiffened Panel Subjected to Transverse Loading</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Kumar">S. Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajesh%20Kumar"> Rajesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Mandal"> S. Mandal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fiber Reinforced Polymer (FRP) is gaining popularity in many branch of engineering and various applications due to their light weight, specific strength per unit weight and high stiffness in particular direction. As the strength of material is high it can be used in thin walled structure as industrial roof sheds satisfying the strength constraint with comparatively lesser thickness. Analysis of bending behavior of FRP panel has been done here with variation in oriented angle of stiffener panels, fiber orientation, aspect ratio and boundary conditions subjected to transverse loading by using Finite Element Method. The effect of fiber orientation and thickness of ply has also been studied to determine the minimum thickness of ply for optimized section of stiffened FRP panel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bending%20behavior" title="bending behavior">bending behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20reinforced%20polymer" title=" fiber reinforced polymer"> fiber reinforced polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=orientation%20of%20stiffeners" title=" orientation of stiffeners"> orientation of stiffeners</a> </p> <a href="https://publications.waset.org/abstracts/61179/bending-behaviour-of-fiber-reinforced-polymer-composite-stiffened-panel-subjected-to-transverse-loading" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61179.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">392</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">1650</span> A Problem on Homogeneous Isotropic Microstretch Thermoelastic Half Space with Mass Diffusion Medium under Different Theories</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Devinder%20Singh">Devinder Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajneesh%20Kumar"> Rajneesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Arvind%20Kumar"> Arvind Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present investigation deals with generalized model of the equations for a homogeneous isotropic microstretch thermoelastic half space with mass diffusion medium. Theories of generalized thermoelasticity Lord-Shulman (LS) Green-Lindsay (GL) and Coupled Theory (CT) theories are applied to investigate the problem. The stresses in the considered medium have been studied due to normal force and tangential force. The normal mode analysis technique is used to calculate the normal stress, shear stress, couple stresses and microstress. A numerical computation has been performed on the resulting quantity. The computed numerical results are shown graphically. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microstretch" title="microstretch">microstretch</a>, <a href="https://publications.waset.org/abstracts/search?q=thermoelastic" title=" thermoelastic"> thermoelastic</a>, <a href="https://publications.waset.org/abstracts/search?q=normal%20mode%20analysis" title=" normal mode analysis"> normal mode analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=normal%20and%20tangential%20force" title=" normal and tangential force"> normal and tangential force</a>, <a href="https://publications.waset.org/abstracts/search?q=microstress%20force" title=" microstress force"> microstress force</a> </p> <a href="https://publications.waset.org/abstracts/16723/a-problem-on-homogeneous-isotropic-microstretch-thermoelastic-half-space-with-mass-diffusion-medium-under-different-theories" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16723.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">535</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">1649</span> Performance Analysis of Curved U-Slot Patch Antenna with Enhanced Bandwidth and Isolation for Mimo Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Umesh%20Kumar">Umesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Arun%20Kumar%20Shukla"> Arun Kumar Shukla</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20V.%20V.%20Ravindra%20Babu"> B. V. V. Ravindra Babu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents a compact tri band Curved U-Slot patch antenna with improved bandwidth and isolation characteristics. The proposed antenna excited by coaxial feed resonates at tri band of 2.8 GHz, 4.1 GHz and 5.7 GHz for VSWR ≤ 1.5 with an improved bandwidth of 99.7% and also for getting high gain antenna of 11.31 dB. A 2×2 MIMO is developed using the proposed antenna giving an excellent isolation of 28 dB between the two antennas. The simulation results of return loss, Mutual Coupling, Gain, VSWR, Surface Current Distribution and Electrical Distribution are presented. By keeping the substrate thickness constant over various dielectric constants, simulations were carried out using MATLAB® and HFSS (High Frequency Structure Simulator) software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=performance%20analysis" title="performance analysis">performance analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=curved%20U-slot%20patch" title=" curved U-slot patch"> curved U-slot patch</a>, <a href="https://publications.waset.org/abstracts/search?q=antenna%20with%20enhanced%20bandwidth" title=" antenna with enhanced bandwidth"> antenna with enhanced bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=isolation%20for%20mimo%20systems" title=" isolation for mimo systems"> isolation for mimo systems</a> </p> <a href="https://publications.waset.org/abstracts/22214/performance-analysis-of-curved-u-slot-patch-antenna-with-enhanced-bandwidth-and-isolation-for-mimo-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22214.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">587</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">1648</span> Support Vector Regression for Retrieval of Soil Moisture Using Bistatic Scatterometer Data at X-Band</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dileep%20Kumar%20Gupta">Dileep Kumar Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajendra%20Prasad"> Rajendra Prasad</a>, <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Kumar"> Pradeep Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Varun%20Narayan%20Mishra"> Varun Narayan Mishra</a>, <a href="https://publications.waset.org/abstracts/search?q=Ajeet%20Kumar%20Vishwakarma"> Ajeet Kumar Vishwakarma</a>, <a href="https://publications.waset.org/abstracts/search?q=Prashant%20K.%20Srivastava"> Prashant K. Srivastava</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An approach was evaluated for the retrieval of soil moisture of bare soil surface using bistatic scatterometer data in the angular range of 200 to 700 at VV- and HH- polarization. The microwave data was acquired by specially designed X-band (10 GHz) bistatic scatterometer. The linear regression analysis was done between scattering coefficients and soil moisture content to select the suitable incidence angle for retrieval of soil moisture content. The 250 incidence angle was found more suitable. The support vector regression analysis was used to approximate the function described by the input-output relationship between the scattering coefficient and corresponding measured values of the soil moisture content. The performance of support vector regression algorithm was evaluated by comparing the observed and the estimated soil moisture content by statistical performance indices %Bias, root mean squared error (RMSE) and Nash-Sutcliffe Efficiency (NSE). The values of %Bias, root mean squared error (RMSE) and Nash-Sutcliffe Efficiency (NSE) were found 2.9451, 1.0986, and 0.9214, respectively at HH-polarization. At VV- polarization, the values of %Bias, root mean squared error (RMSE) and Nash-Sutcliffe Efficiency (NSE) were found 3.6186, 0.9373, and 0.9428, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bistatic%20scatterometer" title="bistatic scatterometer">bistatic scatterometer</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20moisture" title=" soil moisture"> soil moisture</a>, <a href="https://publications.waset.org/abstracts/search?q=support%20vector%20regression" title=" support vector regression"> support vector regression</a>, <a href="https://publications.waset.org/abstracts/search?q=RMSE" title=" RMSE"> RMSE</a>, <a href="https://publications.waset.org/abstracts/search?q=%25Bias" title=" %Bias"> %Bias</a>, <a href="https://publications.waset.org/abstracts/search?q=NSE" title=" NSE"> NSE</a> </p> <a href="https://publications.waset.org/abstracts/34385/support-vector-regression-for-retrieval-of-soil-moisture-using-bistatic-scatterometer-data-at-x-band" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34385.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">428</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">1647</span> Preparation and Characterization of Lanthanum Aluminate Electrolyte Material for Solid Oxide Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Onkar%20Nath%20Verma">Onkar Nath Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Nitish%20Kumar%20Singh"> Nitish Kumar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Raghvendra"> Raghvendra</a>, <a href="https://publications.waset.org/abstracts/search?q=Pravin%20Kumar"> Pravin Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Prabhakar%20Singh"> Prabhakar Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The perovskite type electrolyte material LaAlO3 was prepared by solution based auto-combustion method using Al (NO3)3.6H2O, La2O3 with dilute nitrate acid (HNO3) as precursors and citric acid (C6H8O7.H2O) as a fuel. The synthesis protocol gave an easy processing of the LaAlO3 nano-particles. The XRD measurement revealed that the material has single phase with space group R-3c (rhombohedral). Thermal behavior was measured by simultaneous differential thermal analysis and thermo gravimetric analysis (DTA-TGA). The compact pellet density was determined. Also, the surface morphology was studied using scanning electron microscopy (SEM). The conductivity of LaAlO3 was measured employing LCR meter and found to increase with increasing temperature. This increase in conductivity may be attributed to increased mobility of oxide ion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite" title="perovskite">perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=LaAlO3" title=" LaAlO3"> LaAlO3</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a>, <a href="https://publications.waset.org/abstracts/search?q=DTA-TGA" title=" DTA-TGA"> DTA-TGA</a>, <a href="https://publications.waset.org/abstracts/search?q=SOFC" title=" SOFC"> SOFC</a> </p> <a href="https://publications.waset.org/abstracts/21966/preparation-and-characterization-of-lanthanum-aluminate-electrolyte-material-for-solid-oxide-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21966.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">503</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar&page=1" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar&page=1">1</a></li> <li class="page-item active"><span class="page-link">2</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Naresh%20Kumar&page=5">5</a></li> <li class="page-item"><a class="page-link" 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