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variation</title> <meta name="description" content="Search results for: temperature variation"> <meta name="keywords" content="temperature variation"> <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 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action="https://publications.waset.org/abstracts/search"> <div 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="temperature variation"> <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> 9041</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: temperature variation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9041</span> Temperature Profile Modelling in Flexible Pavement Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Csaba%20T%C3%B3th">Csaba Tóth</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%89va%20Lakatos"> Éva Lakatos</a>, <a href="https://publications.waset.org/abstracts/search?q=L%C3%A1szl%C3%B3%20Peth%C5%91"> László Pethő</a>, <a href="https://publications.waset.org/abstracts/search?q=Seoyoung%20Cho"> Seoyoung Cho </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The temperature effect on asphalt pavement structure is a crucial factor at the design stage. In this paper, by applying the German guidelines for temperature along the asphalt depth is estimated. The aim is to consider temperature profiles in different seasons in numerical modelling. The model is built with an elastic and isotropic solid element with 19 subdivisions of asphalt layers to reflect the temperature variation. Comparison with the simple three-layer pavement system (asphalt layers, base, and subgrade layers) will be followed to see the difference in result without temperature variation along with the depth. Finally, the fatigue life calculation was checked to prove the validity of the methodology of considering the temperature in the numerical modelling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=temperature%20profile" title="temperature profile">temperature profile</a>, <a href="https://publications.waset.org/abstracts/search?q=flexible%20pavement%20modeling" title=" flexible pavement modeling"> flexible pavement modeling</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=temperature%20modeling" title=" temperature modeling"> temperature modeling</a> </p> <a href="https://publications.waset.org/abstracts/123609/temperature-profile-modelling-in-flexible-pavement-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123609.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">267</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">9040</span> Measurement of Temperature, Humidity and Strain Variation Using Bragg Sensor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amira%20Zrelli">Amira Zrelli</a>, <a href="https://publications.waset.org/abstracts/search?q=Tahar%20Ezzeddine"> Tahar Ezzeddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Measurement and monitoring of temperature, humidity and strain variation are very requested in great fields and areas such as structural health monitoring (SHM) systems. Currently, the use of fiber Bragg grating sensors (FBGS) is very recommended in SHM systems due to the specifications of these sensors. In this paper, we present the theory of Bragg sensor, therefore we try to measure the efficient variation of strain, temperature and humidity (SV, ST, SH) using Bragg sensor. Thus, we can deduce the fundamental relation between these parameters and the wavelength of Bragg sensor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fiber%20Bragg%20Grating%20Sensors%20%28FBGS%29" title="Fiber Bragg Grating Sensors (FBGS)">Fiber Bragg Grating Sensors (FBGS)</a>, <a href="https://publications.waset.org/abstracts/search?q=strain" title=" strain"> strain</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=humidity" title=" humidity"> humidity</a>, <a href="https://publications.waset.org/abstracts/search?q=structural%20health%20monitoring%20%28SHM%29" title=" structural health monitoring (SHM)"> structural health monitoring (SHM)</a> </p> <a href="https://publications.waset.org/abstracts/69360/measurement-of-temperature-humidity-and-strain-variation-using-bragg-sensor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69360.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">315</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">9039</span> Dynamic Compensation for Environmental Temperature Variation in the Coolant Refrigeration Cycle as a Means of Increasing Machine-Tool Precision</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Robbie%20C.%20Murchison">Robbie C. Murchison</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20K%C3%BC%C3%A7%C3%BCkdemiral"> Ibrahim Küçükdemiral</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Cowell"> Andrew Cowell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermal effects are the largest source of dimensional error in precision machining, and a major proportion is caused by ambient temperature variation. The use of coolant is a primary means of mitigating these effects, but there has been limited work on coolant temperature control. This research critically explored whether CNC-machine coolant refrigeration systems adapted to actively compensate for ambient temperature variation could increase machining accuracy. Accuracy data were collected from operators’ checklists for a CNC 5-axis mill and statistically reduced to bias and precision metrics for observations of one day over a sample period of 27 days. Temperature data were collected using three USB dataloggers in ambient air, the chiller inflow, and the chiller outflow. The accuracy and temperature data were analysed using Pearson correlation, then the thermodynamics of the system were described using system identification with MATLAB. It was found that 75% of thermal error is reflected in the hot coolant temperature but that this is negligibly dependent on ambient temperature. The effect of the coolant refrigeration process on hot coolant outflow temperature was also found to be negligible. Therefore, the evidence indicated that it would not be beneficial to adapt coolant chillers to compensate for ambient temperature variation. However, it is concluded that hot coolant outflow temperature is a robust and accessible source of thermal error data which could be used for prevention strategy evaluation or as the basis of other thermal error strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CNC%20manufacturing" title="CNC manufacturing">CNC manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=machine-tool" title=" machine-tool"> machine-tool</a>, <a href="https://publications.waset.org/abstracts/search?q=precision%20machining" title=" precision machining"> precision machining</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20error" title=" thermal error"> thermal error</a> </p> <a href="https://publications.waset.org/abstracts/157403/dynamic-compensation-for-environmental-temperature-variation-in-the-coolant-refrigeration-cycle-as-a-means-of-increasing-machine-tool-precision" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157403.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">89</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">9038</span> Creeping Control Strategy for Direct Shift Gearbox Based on the Investigation of Temperature Variation of the Wet Clutch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Biao%20Ma">Biao Ma</a>, <a href="https://publications.waset.org/abstracts/search?q=Jikai%20Liu"> Jikai Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Man%20Chen"> Man Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianpeng%20Wu"> Jianpeng Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Liyong%20Wang"> Liyong Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Changsong%20Zheng"> Changsong Zheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Proposing an appropriate control strategy is an effective and practical way to address the overheat problems of the wet multi-plate clutch in Direct Shift Gearbox under the long-time creeping condition. To do so, the temperature variation of the wet multi-plate clutch is investigated firstly by establishing a thermal resistance model for the gearbox cooling system. To calculate the generated heat flux and predict the clutch temperature precisely, the friction torque model is optimized by introducing an improved friction coefficient, which is related to the pressure, the relative speed and the temperature. After that, the heat transfer model and the reasonable friction torque model are employed by the vehicle powertrain model to construct a comprehensive co-simulation model for the Direct Shift Gearbox (DSG) vehicle. A creeping control strategy is then proposed and, to evaluate the vehicle performance, the safety temperature (250 ℃) is particularly adopted as an important metric. During the creeping process, the temperature of two clutches is always under the safety value (250 ℃), which demonstrates the effectiveness of the proposed control strategy in avoiding the thermal failures of clutches. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=creeping%20control%20strategy" title="creeping control strategy">creeping control strategy</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20shift%20gearbox" title=" direct shift gearbox"> direct shift gearbox</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20variation" title=" temperature variation"> temperature variation</a>, <a href="https://publications.waset.org/abstracts/search?q=wet%20clutch" title=" wet clutch"> wet clutch</a> </p> <a href="https://publications.waset.org/abstracts/95295/creeping-control-strategy-for-direct-shift-gearbox-based-on-the-investigation-of-temperature-variation-of-the-wet-clutch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95295.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">133</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">9037</span> Buckling Resistance of GFRP Sandwich Infill Panels with Different Cores under Increased Temperatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=WooYoung%20Jung">WooYoung Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Sim"> V. Sim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents numerical analysis in terms of buckling resistance strength of polymer matrix composite (PMC) infill panels system under the influence of temperature on the foam core. Failure mode under in-plane compression is investigated by means of numerical analysis with ABAQUS platform. Parameters considered in this study are contact length and both the type of foam for core and the variation of its Young's Modulus under the thermal influence. Variation of temperature is considered in static cases and only applied to core. Indeed, it is shown that the effect of temperature on the panel system mechanical properties is significance. Moreover, the variations of temperature result in the decrements of the system strength. This is due to the polymeric nature of this material. Additionally, the contact length also displays the effect on performance of infill panel. Their significance factors are based on type of polymer for core. Hence, by comparing difference type of core material, the variation can be reducing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=buckling" title="buckling">buckling</a>, <a href="https://publications.waset.org/abstracts/search?q=contact%20length" title=" contact length"> contact length</a>, <a href="https://publications.waset.org/abstracts/search?q=foam%20core" title=" foam core"> foam core</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20dependent" title=" temperature dependent"> temperature dependent</a> </p> <a href="https://publications.waset.org/abstracts/41671/buckling-resistance-of-gfrp-sandwich-infill-panels-with-different-cores-under-increased-temperatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41671.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">298</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">9036</span> Identification of Thermally Critical Zones Based on Inter Seasonal Variation in Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sakti%20Mandal">Sakti Mandal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Varying distribution of land surface temperature in an urbanized environment is a globally addressed phenomenon. Usually has been noticed that criticality of surface temperature increases from the periphery to the urban centre. As the centre experiences maximum severity of heat throughout the year, it also represents most critical zone in terms of thermal condition. In this present study, an attempt has been taken to propose a quantitative approach of thermal critical zonation (TCZ) on the basis of seasonal temperature variation. Here the zonation is done by calculating thermal critical value (TCV). From the Landsat 8 thermal digital data of summer and winter seasons for the year 2014, the land surface temperature maps and thermally critical zonation has been prepared, and corresponding dataset has been computed to conduct the overall study of that particular study area. It is shown that TCZ can be clearly identified and analyzed by the help of inter-seasonal temperature range. The results of this study can be utilized effectively in future urban development and planning projects as well as a framework for implementing rules and regulations by the authorities for a sustainable urban development through an environmentally affable approach. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20critical%20values%20%28TCV%29" title="thermal critical values (TCV)">thermal critical values (TCV)</a>, <a href="https://publications.waset.org/abstracts/search?q=thermally%20critical%20zonation%20%28TCZ%29" title=" thermally critical zonation (TCZ)"> thermally critical zonation (TCZ)</a>, <a href="https://publications.waset.org/abstracts/search?q=land%20surface%20temperature%20%28LST%29" title=" land surface temperature (LST)"> land surface temperature (LST)</a>, <a href="https://publications.waset.org/abstracts/search?q=Landsat%208" title=" Landsat 8"> Landsat 8</a>, <a href="https://publications.waset.org/abstracts/search?q=Kolkata%20Municipal%20Corporation%20%28KMC%29" title=" Kolkata Municipal Corporation (KMC)"> Kolkata Municipal Corporation (KMC)</a> </p> <a href="https://publications.waset.org/abstracts/85395/identification-of-thermally-critical-zones-based-on-inter-seasonal-variation-in-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85395.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">9035</span> Numerical Investigation of Thermal Energy Storage System with Phase Change Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mrityunjay%20Kumar%20Sinha">Mrityunjay Kumar Sinha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayank%20Srivastava"> Mayank Srivastava</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The position of interface and temperature variation of phase change thermal energy storage system under constant heat injection and radiative heat injection is analysed during charging/discharging process by Heat balance integral method. The charging/discharging process is solely governed by conduction. Phase change material is kept inside a rectangular cavity. Time-dependent fixed temperature and radiative boundary condition applied on one wall, all other walls are thermally insulated. Interface location and temperature variation are analysed by using MATLAB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conduction" title="conduction">conduction</a>, <a href="https://publications.waset.org/abstracts/search?q=melting%2Fsolidification" title=" melting/solidification"> melting/solidification</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20change%20materials" title=" phase change materials"> phase change materials</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefan%E2%80%99s%20number" title=" Stefan’s number"> Stefan’s number</a> </p> <a href="https://publications.waset.org/abstracts/56671/numerical-investigation-of-thermal-energy-storage-system-with-phase-change-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56671.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">9034</span> Impact of Climate Variation on Natural Vegetations and Human Lives in Thar Desert, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sujo%20Meghwar">Sujo Meghwar</a>, <a href="https://publications.waset.org/abstracts/search?q=Zulfqar%20Ali%20laghari"> Zulfqar Ali laghari</a>, <a href="https://publications.waset.org/abstracts/search?q=Kanji%20Harijan"> Kanji Harijan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhib%20Ali%20Lagari"> Muhib Ali Lagari</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20M.%20Mastoi"> G. M. Mastoi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Mohammad%20Rind"> Ali Mohammad Rind</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thar Desert is the most populous Desert of the world. Climate variation in Thar Desert has induced an increase in the magnitude of drought. The variation in climate variation has caused a decrease in natural vegetations. Some plant species are eliminated forever. We have applied the SPI (standardized precipitation index) climate model to investigate the drought induced by climate change. We have gathered the anthropogenic response through a developed questionnaire. The data was analyzed in SPSS version 18. The met-data of two meteorological station elaborated by the time series has suggested an increase in temperature from 1-2.5 centigrade, the decrease in rain fall rainfall from 5-25% and reduction in humidity from 5-12 mm in the 20th century. The anthropogenic responses indicate high impact of climate change on human life and vegetations. Triangle data, we have collected, gives a new insight into the understanding of an association between climate change, drought and human activities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thar%20desert" title="Thar desert">Thar desert</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20impact" title=" human impact"> human impact</a>, <a href="https://publications.waset.org/abstracts/search?q=vegetations" title=" vegetations"> vegetations</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=rainfall" title=" rainfall"> rainfall</a>, <a href="https://publications.waset.org/abstracts/search?q=humidity" title=" humidity"> humidity</a> </p> <a href="https://publications.waset.org/abstracts/17974/impact-of-climate-variation-on-natural-vegetations-and-human-lives-in-thar-desert-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17974.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">404</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">9033</span> Non-Autonomous Seasonal Variation Model for Vector-Borne Disease Transferral in Kampala of Uganda</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benjamin%20Aina%20Peter">Benjamin Aina Peter</a>, <a href="https://publications.waset.org/abstracts/search?q=Amos%20Wale%20Ogunsola"> Amos Wale Ogunsola</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a mathematical model of malaria transmission was presented with the effect of seasonal shift, due to global fluctuation in temperature, on the increase of conveyor of the infectious disease, which probably alters the region transmission potential of malaria. A deterministic compartmental model was proposed and analyzed qualitatively. Both qualitative and quantitative approaches of the model were considered. The next-generation matrix is employed to determine the basic reproduction number of the model. Equilibrium points of the model were determined and analyzed. The numerical simulation is carried out using Excel Micro Software to validate and support the qualitative results. From the analysis of the result, the optimal temperature for the transmission of malaria is between and . The result also shows that an increase in temperature due to seasonal shift gives rise to the development of parasites which consequently leads to an increase in the widespread of malaria transmission in Kampala. It is also seen from the results that an increase in temperature leads to an increase in the number of infectious human hosts and mosquitoes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=seasonal%20variation" title="seasonal variation">seasonal variation</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20residual%20spray" title=" indoor residual spray"> indoor residual spray</a>, <a href="https://publications.waset.org/abstracts/search?q=efficacy%20of%20spray" title=" efficacy of spray"> efficacy of spray</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature-dependent%20model" title=" temperature-dependent model"> temperature-dependent model</a> </p> <a href="https://publications.waset.org/abstracts/143261/non-autonomous-seasonal-variation-model-for-vector-borne-disease-transferral-in-kampala-of-uganda" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143261.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">169</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">9032</span> On Kantorovich-Stancu Type Operators with the Variation Detracting Property</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=%C3%96zlem%20%C3%96ks%C3%BCzer">Özlem Öksüzer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we introduce variation detracting property of Kantorovich-Stancu type operators in the space of functions of bounded variation. These problems are studied with respect to the variation seminorm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kantorovich-Stancu%20type%20operators" title="Kantorovich-Stancu type operators">Kantorovich-Stancu type operators</a>, <a href="https://publications.waset.org/abstracts/search?q=variation%20seminorm" title=" variation seminorm"> variation seminorm</a>, <a href="https://publications.waset.org/abstracts/search?q=variation%20detracting%20property" title=" variation detracting property"> variation detracting property</a>, <a href="https://publications.waset.org/abstracts/search?q=absolutely%20continuous%20function" title=" absolutely continuous function"> absolutely continuous function</a> </p> <a href="https://publications.waset.org/abstracts/32234/on-kantorovich-stancu-type-operators-with-the-variation-detracting-property" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32234.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">407</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">9031</span> Wear Resistance and Mechanical Performance of Ultra-High Molecular Weight Polyethylene Influenced by Temperature Change</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juan%20Carlos%20Baena">Juan Carlos Baena</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhongxiao%20Peng"> Zhongxiao Peng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultra-high molecular weight polyethylene (UHMWPE) is extensively used in industrial and biomedical fields. The slippery nature of UHMWPE makes this material suitable for surface bearing applications, however, the operational conditions limit the lubrication efficiency, inducing boundary and mixed lubrication in the tribological system. The lack of lubrication in a tribological system intensifies friction, contact stress and consequently, operating temperature. With temperature increase, the material’s mechanical properties are affected, and the lifespan of the component is reduced. The understanding of how mechanical properties and wear performance of UHMWPE change when the temperature is increased has not been clearly identified. The understanding of the wear and mechanical performance of UHMWPE at different temperature is important to predict and further improve the lifespan of these components. This study evaluates the effects of temperature variation in a range of 20 °C to 60 °C on the hardness and the wear resistance of UHMWPE. A reduction of the hardness and wear resistance was observed with the increase in temperature. The variation of the wear rate increased 94.8% when the temperature changed from 20 °C to 50 °C. Although hardness is regarded to be an indicator of the material wear resistance, this study found that wear resistance decreased more rapidly than hardness with the temperature increase, evidencing a low material stability of this component in a short temperature interval. The reduction of the hardness was reflected by the plastic deformation and abrasion intensity, resulting in a significant wear rate increase. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hardness" title="hardness">hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20bearing" title=" surface bearing"> surface bearing</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20system" title=" tribological system"> tribological system</a>, <a href="https://publications.waset.org/abstracts/search?q=UHMWPE" title=" UHMWPE"> UHMWPE</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a> </p> <a href="https://publications.waset.org/abstracts/70147/wear-resistance-and-mechanical-performance-of-ultra-high-molecular-weight-polyethylene-influenced-by-temperature-change" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70147.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">271</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">9030</span> Characterization of Pectinase from Local Microorganisms to Support Industry Based Green Chemistry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sasangka%20Prasetyawan">Sasangka Prasetyawan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20Roosdiana"> Anna Roosdiana</a>, <a href="https://publications.waset.org/abstracts/search?q=Diah%20Mardiana"> Diah Mardiana</a>, <a href="https://publications.waset.org/abstracts/search?q=Suratmo"> Suratmo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pectinase are enzymes that hydrolyze pectin compounds. The use of this enzyme is primarily to reduce the viscosity of the beverage thus simplifying the purification process. Pectinase activity influenced by microbial sources . Exploration of two types of microbes that Aspergillus spp. and Bacillus spp. pectinase give different performance, but the use of local strain is still not widely studied. The aim of this research is exploration of pectinase from A. niger and B. firmus include production conditions and characterization. Bacillus firmus incubated and shaken at a speed of 200 rpm at pH variation (5, 6, 7, 8, 9, 10), temperature (30, 35, 40, 45, 50) °C and incubation time (6, 12, 18, 24, 30, 36 ) hours. Media was centrifuged at 3000 rpm, pectinase enzyme activity determined. Enzyme production by A. niger determined to variations in temperature and pH were similar to B. firmus, but the variation of the incubation time was 24, 48, 72, 96, 120 hours. Pectinase crude extract was further purified by precipitation using ammonium sulfate saturation in fraction 0-20 %, 20-40 %, 40-60 %, 60-80 %, then dialyzed. Determination of optimum conditions pectinase activity performed by measuring the variation of enzyme activity on pH (4, 6, 7, 8, 10), temperature (30, 35, 40, 45, 50) °C, and the incubation time (10, 20, 30, 40, 50) minutes . Determination of kinetic parameters of pectinase enzyme reaction carried out by measuring the rate of enzyme reactions at the optimum conditions, but the variation of the concentration of substrate (pectin 0.1 % , 0.2 % , 0.3 % , 0.4 % , 0.5 % ). The results showed that the optimum conditions of production of pectinase from B. firmus achieved at pH 7-8.0, 40-50 ⁰C temperature and fermentation time 18 hours. Purification of pectinase showed the highest purity in the 40-80 % ammonium sulfate fraction. Character pectinase obtained : the optimum working conditions of A. niger pectinase at pH 5 , while pectinase from B. firmus at pH 7, temperature and optimum incubation time showed the same value, namely the temperature of 50 ⁰C and incubation time of 30 minutes. The presence of metal ions can affect the activity of pectinase , the concentration of Zn 2 + , Pb 2 + , Ca 2 + and K + and 2 mM Mg 2 + above 6 mM inhibit the activity of pectinase . <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pectinase" title="pectinase">pectinase</a>, <a href="https://publications.waset.org/abstracts/search?q=Bacillus%20firmus" title=" Bacillus firmus"> Bacillus firmus</a>, <a href="https://publications.waset.org/abstracts/search?q=Aspergillus%20niger" title=" Aspergillus niger"> Aspergillus niger</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20chemistry" title=" green chemistry"> green chemistry</a> </p> <a href="https://publications.waset.org/abstracts/9416/characterization-of-pectinase-from-local-microorganisms-to-support-industry-based-green-chemistry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9416.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">367</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">9029</span> Effect of Constant and Variable Temperature on the Morphology of TiO₂ Nanotubes Prepared by Two-Step Anodization Method </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tayyaba%20Ghani">Tayyaba Ghani</a>, <a href="https://publications.waset.org/abstracts/search?q=Mazhar%20Mehmood"> Mazhar Mehmood</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Mujahid"> Mohammad Mujahid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> TiO₂ nanotubes are receiving immense attraction in the field of dye-sensitized solar cells due to their well-defined nanostructures, efficient electron transport and large surface area as compared to other one dimensional structures. In the present work, we have investigated the influence of temperature on the morphology of anodically produced self-organized Titanium oxide nanotubes (TiNTs). TiNTs are synthesized by two-step anodization method in an ethylene glycol based electrolytes containing ammonium fluoride. Experiments are performed at constant anodization voltage for two hours. An investigation by the SEM images reveals that if the temperature is kept constant during the anodizing experiment, variation in the average tube diameter is significantly reduced. However, if the temperature is not controlled then due to the exothermic nature of reactions for the formation of TiNTs, the temperature of electrolyte keep on increasing. This variation in electrolyte bath temperature introduced strong variations in tube diameter (20 nm to 160 nm) along the length of tubes. Current profiles, recorded during the anodization experiment, predict the effect of constant and varying experimental temperatures as well. In both cases, XRD results show the complete anatase crystal structure of nanotube upon annealing at 450 °C. Present work highlights the importance of constant temperature during the anodization experiments in order to develop an ordered array of nanotubes with a uniform tube diameter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anodization" title="anodization">anodization</a>, <a href="https://publications.waset.org/abstracts/search?q=ordering" title=" ordering"> ordering</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=TiO%E2%82%82%20nanotubes" title=" TiO₂ nanotubes"> TiO₂ nanotubes</a> </p> <a href="https://publications.waset.org/abstracts/106306/effect-of-constant-and-variable-temperature-on-the-morphology-of-tio2-nanotubes-prepared-by-two-step-anodization-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106306.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">171</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">9028</span> A Study on the Magnetic and Mechanical Properties of Nd-Fe-B Sintered Magnets According to Sintering Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20H.%20Kim">J. H. Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Y.%20Park"> S. Y. Park</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20M.%20Lim"> K. M. Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20K.%20Hyun"> S. K. Hyun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of sintering temperature on the magnetic and mechanical properties of Nd-Fe-B sintered magnets has been investigated in this study. The sintering temperature changed from 950°C to 1120°C. While remanence and hardness of the magnets increased with increasing sintering temperature, the coercivity first increased, and then decreased. The optimum magnetic and mechanical properties of the magnets were obtained at the sintering temperature of 1050°C. In order to clarify the reason for the variation on magnetic and mechanical properties of the magnets, we systematically analyzed the microstructure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20and%20mechanical%20property" title="magnetic and mechanical property">magnetic and mechanical property</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnets" title=" permanent magnets"> permanent magnets</a>, <a href="https://publications.waset.org/abstracts/search?q=sintered%20Nd-Fe-B%20magnet" title=" sintered Nd-Fe-B magnet"> sintered Nd-Fe-B magnet</a> </p> <a href="https://publications.waset.org/abstracts/29293/a-study-on-the-magnetic-and-mechanical-properties-of-nd-fe-b-sintered-magnets-according-to-sintering-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29293.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9027</span> Temperature-Dependent Structural Characterization of Type-II Dirac Semi-Metal nite₂ From Bulk to Exfoliated Thin Flakes Using Raman Spectroscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Minna%20Theres%20James">Minna Theres James</a>, <a href="https://publications.waset.org/abstracts/search?q=Nirmal%20K%20Sebastian"> Nirmal K Sebastian</a>, <a href="https://publications.waset.org/abstracts/search?q=Shoubhik%20Mandal"> Shoubhik Mandal</a>, <a href="https://publications.waset.org/abstracts/search?q=Pramita%20Mishra"> Pramita Mishra</a>, <a href="https://publications.waset.org/abstracts/search?q=R%20Ganesan"> R Ganesan</a>, <a href="https://publications.waset.org/abstracts/search?q=P%20S%20Anil%20Kumar"> P S Anil Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report the temperature-dependent evolution of Raman spectra of type-II Dirac semimetal (DSM) NiTe2 (001) in the form of bulk single crystal and a nanoflake (200 nm thick) for the first time. A physical model that can quantitatively explain the evolution of out of plane A1g and in-plane E1g Raman modes is used. The non-linear variation of peak positions of the Raman modes with temperature is explained by anharmonic three-phonon and four-phonon processes along with thermal expansion of the lattice. We also observe prominent effect of electron-phonon coupling from the variation of FWHM of the peaks with temperature, indicating the metallicity of the samples. Raman mode E1 1g corresponding to an in plane vibration disappears on decreasing the thickness from bulk to nanoflake. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=raman%20spectroscopy" title="raman spectroscopy">raman spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=type%202%20dirac%20semimetal" title=" type 2 dirac semimetal"> type 2 dirac semimetal</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20telluride" title=" nickel telluride"> nickel telluride</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon-phonon%20coupling" title=" phonon-phonon coupling"> phonon-phonon coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20phonon%20coupling" title=" electron phonon coupling"> electron phonon coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=transition%20metal%20dichalcogonide" title=" transition metal dichalcogonide"> transition metal dichalcogonide</a> </p> <a href="https://publications.waset.org/abstracts/148958/temperature-dependent-structural-characterization-of-type-ii-dirac-semi-metal-nite2-from-bulk-to-exfoliated-thin-flakes-using-raman-spectroscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148958.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">115</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">9026</span> Air Conditioning Variation of 1kW Open-Cathode Proton Exchange Membrane (PEM) Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Syahirin%20Aisha">Mohammad Syahirin Aisha</a>, <a href="https://publications.waset.org/abstracts/search?q=Khairul%20Imran%20Sainan"> Khairul Imran Sainan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The PEM fuel cell is a device that generate electric by electrochemical reaction between hydrogen fuel and oxygen in the fuel cell stack. PEM fuel cell consists of an anode (hydrogen supply), a cathode (oxygen supply) and an electrolyte that allow charges move between the two positions of the fuel cell. The only product being developed after the reaction is water (H2O) and heat as the waste which does not emit greenhouse gasses. The performance of fuel cell affected by numerous parameters. This study is restricted to cathode parameters that affect fuel cell performance. At the anode side, the reactant is not going through any changes. Experiments with variation in air velocity (3m/s, 6m/s and 9m/s), temperature (10oC, 20oC, 35oC) and relative humidity (50%, 60%, and 70%) have been carried out. The experiments results are presented in the form of fuel cell stack power output over time, which demonstrate the impacts of the various air condition on the execution of the PEM fuel cell. In this study, the experimental analysis shows that with variation of air conditions, it gives different fuel cell performance behavior. The maximum power output of the experiment was measured at an ambient temperature of 25oC with relative humidity and 9m/s velocity of air. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air-breathing%20PEM%20fuel%20cell" title="air-breathing PEM fuel cell">air-breathing PEM fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=cathode%20side" title=" cathode side"> cathode side</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=variation%20in%20air%20condition" title=" variation in air condition"> variation in air condition</a> </p> <a href="https://publications.waset.org/abstracts/24926/air-conditioning-variation-of-1kw-open-cathode-proton-exchange-membrane-pem-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24926.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">461</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">9025</span> Buckling Resistance of Basalt Fiber Reinforced Polymer Infill Panel Subjected to Elevated Temperatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viriyavudh%20Sim">Viriyavudh Sim</a>, <a href="https://publications.waset.org/abstracts/search?q=Woo%20Young%20Jung"> Woo Young Jung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Performance of Basalt Fiber Reinforced Polymer (BFRP) sandwich infill panel system under diagonal compression was studied by means of numerical analysis. Furthermore, the variation of temperature was considered to affect the mechanical properties of BFRP, since their composition was based on polymeric material. Moreover, commercial finite element analysis platform ABAQUS was used to model and analyze this infill panel system. Consequently, results of the analyses show that the overall performance of BFRP panel had a 15% increase compared to that of GFRP infill panel system. However, the variation of buckling load in terms of temperature for the BFRP system showed a more sensitive nature compared to those of GFRP system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=basalt%20fiber%20reinforced%20polymer%20%28BFRP%29" title="basalt fiber reinforced polymer (BFRP)">basalt fiber reinforced polymer (BFRP)</a>, <a href="https://publications.waset.org/abstracts/search?q=buckling%20performance" title=" buckling performance"> buckling performance</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20dependent%20materials" title=" temperature dependent materials"> temperature dependent materials</a> </p> <a href="https://publications.waset.org/abstracts/80015/buckling-resistance-of-basalt-fiber-reinforced-polymer-infill-panel-subjected-to-elevated-temperatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80015.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">200</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">9024</span> Power and Efficiency of Photovoltaic Module: Effect of Cell Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Nasrin">R. Nasrin</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Ferdows"> M. Ferdows</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Among the renewable energy sources, photovoltaic (PV) is a high potential, effective, and sustainable system. Irradiation intensity from 200 W/m2 to 1000 W/m2 has been considered to observe the performance of PV module. Generally, this module converts only about 15% - 20% of incident irradiation into electrical energy and the rest part is converted into heat energy. Finite element method has been used to solve the problem numerically. Simulation has been performed by considering the ambient temperature 30°C. Higher irradiation increase solar cell temperature and electrical power. The electrical efficiency of PV module decreases with the variation of solar radiation. The efficiency of PV module can be increased if cell temperature is reduced. Thus the effect of irradiation is significant to enhance the efficiency of PV module if the solar cell temperature is kept at a certain level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PV%20module" title="PV module">PV module</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20radiation" title=" solar radiation"> solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20temperature" title=" cell temperature"> cell temperature</a> </p> <a href="https://publications.waset.org/abstracts/82035/power-and-efficiency-of-photovoltaic-module-effect-of-cell-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82035.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">9023</span> Transient Heat Transfer of a Spiral Fin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sen-Yung%20Lee">Sen-Yung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Li-Kuo%20Chou"> Li-Kuo Chou</a>, <a href="https://publications.waset.org/abstracts/search?q=Chao-Kuang%20Chen"> Chao-Kuang Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the problem of temperature transient response of a spiral fin, with its end insulated, is analyzed with base end subjected to a variation of fluid temperature. The hybrid method of Laplace transforms/Adomian decomposed method-Padé, is applied to the temperature transient response of the fin, the result of the temperature distribution and the heat flux at the base of the spiral fin are obtained, show a good agreement in the physical phenomenon. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laplace%20transforms" title="Laplace transforms">Laplace transforms</a>, <a href="https://publications.waset.org/abstracts/search?q=Adomian%20decomposed%20method-%20Pad%C3%A9" title=" Adomian decomposed method- Padé"> Adomian decomposed method- Padé</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20response" title=" transient response"> transient response</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a> </p> <a href="https://publications.waset.org/abstracts/47926/transient-heat-transfer-of-a-spiral-fin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47926.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">426</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">9022</span> A Calibration Method for Temperature Distribution Measurement of Thermochromic Liquid Crystal Based on Mathematical Morphology of Hue Image</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Risti%20Suryantari">Risti Suryantari</a>, <a href="https://publications.waset.org/abstracts/search?q=Flaviana"> Flaviana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this research is to design calibration method of Thermochromic Liquid Crystal for temperature distribution measurement based on mathematical morphology of hue image A glass of water is placed on the surface of sample TLC R25C5W at certain temperature. We use scanner for image acquisition. The true images in RGB format is converted to HSV (hue, saturation, value) by taking of hue without saturation and value. Then the hue images is processed based on mathematical morphology using Matlab2013a software to get better images. There are differences on the final images after processing at each temperature variation based on visualization observation and the statistic value. The value of maximum and mean increase with rising temperature. It could be parameter to identify the temperature of the human body surface like hand or foot surface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermochromic%20liquid%20crystal" title="thermochromic liquid crystal">thermochromic liquid crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=TLC" title=" TLC"> TLC</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20morphology" title=" mathematical morphology"> mathematical morphology</a>, <a href="https://publications.waset.org/abstracts/search?q=hue%20image" title=" hue image"> hue image</a> </p> <a href="https://publications.waset.org/abstracts/28961/a-calibration-method-for-temperature-distribution-measurement-of-thermochromic-liquid-crystal-based-on-mathematical-morphology-of-hue-image" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28961.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">472</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">9021</span> Cable Diameter Effect on the Contact Temperature of Power Automotive Connector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amine%20Beloufa">Amine Beloufa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Amirat"> Mohamed Amirat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the electric vehicle, high power leads to high current; automotive power connector should resist to this high current in order to avoid a serious damage caused by the increase of contact temperature. The purpose of this paper is to analyze experimentally and numerically the effect of the cable diameter variation on the decrease of contact temperature. For this reason, a finite element model was developed to calculate the numerical contact temperature for several cable diameters and several electrical high currents. Also, experimental tests were established in order to validate this numerical model. Results show that the influence of cable diameter on the contact temperature is never neglected. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=contact%20temperature" title="contact temperature">contact temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20test" title=" experimental test"> experimental test</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element" title=" finite element"> finite element</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20automotive%20connector" title=" power automotive connector"> power automotive connector</a> </p> <a href="https://publications.waset.org/abstracts/66274/cable-diameter-effect-on-the-contact-temperature-of-power-automotive-connector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66274.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">263</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9020</span> Application of Model Free Adaptive Control in Main Steam Temperature System of Thermal Power Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaing%20Yadana%20Swe">Khaing Yadana Swe</a>, <a href="https://publications.waset.org/abstracts/search?q=Lillie%20Dewan"> Lillie Dewan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> At present, the cascade PID control is widely used to control the super-heating temperature (main steam temperature). As the main steam temperature has the characteristics of large inertia, large time-delay, and time varying, etc., conventional PID control strategy can not achieve good control performance. In order to overcome the bad performance and deficiencies of main steam temperature control system, Model Free Adaptive Control (MFAC) P cascade control system is proposed in this paper. By substituting MFAC in PID of the main control loop of the main steam temperature control, it can overcome time delays, non-linearity, disturbance and time variation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=model-free%20adaptive%20control" title="model-free adaptive control">model-free adaptive control</a>, <a href="https://publications.waset.org/abstracts/search?q=cascade%20control" title=" cascade control"> cascade control</a>, <a href="https://publications.waset.org/abstracts/search?q=adaptive%20control" title=" adaptive control"> adaptive control</a>, <a href="https://publications.waset.org/abstracts/search?q=PID" title=" PID"> PID</a> </p> <a href="https://publications.waset.org/abstracts/19926/application-of-model-free-adaptive-control-in-main-steam-temperature-system-of-thermal-power-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19926.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">603</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">9019</span> Research of Intrinsic Emittance of Thermal Cathode with Emission Nonuniformity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yufei%20Peng">Yufei Peng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhen%20Qin"> Zhen Qin</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianbe%20Li"> Jianbe Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Jidong%20Long"> Jidong Long</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The thermal cathode is widely used in accelerators, FELs and kinds of vacuum electronics. However, emission nonuniformity exists due to surface profile, material distribution, temperature variation, crystal orientation, etc., which will cause intrinsic emittance growth, brightness decline, envelope size augment, device performance deterioration or even failure. To understand how emittance is manipulated by emission nonuniformity, an intrinsic emittance model consisting of contributions from macro and micro surface nonuniformity is developed analytically based on general thermal emission model at temperature limited regime according to a real 3mm cathode. The model shows relative emittance increased about 50% due to temperature variation, and less than 5% from several kinds of micro surface nonuniformity which is much smaller than other research. Otherwise, we also calculated emittance growth combining with Monte Carlo method and PIC simulation, experiments of emission uniformity and emittance measurement are going to be carried out separately. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20cathode" title="thermal cathode">thermal cathode</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20emission%20fluctuation" title=" electron emission fluctuation"> electron emission fluctuation</a>, <a href="https://publications.waset.org/abstracts/search?q=intrinsic%20emittance" title=" intrinsic emittance"> intrinsic emittance</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20nonuniformity" title=" surface nonuniformity"> surface nonuniformity</a>, <a href="https://publications.waset.org/abstracts/search?q=cathode%20lifetime" title=" cathode lifetime"> cathode lifetime</a> </p> <a href="https://publications.waset.org/abstracts/64153/research-of-intrinsic-emittance-of-thermal-cathode-with-emission-nonuniformity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64153.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">298</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">9018</span> Performance Variation of the TEES According to the Changes in Cold-Side Storage Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young-Jin%20Baik">Young-Jin Baik</a>, <a href="https://publications.waset.org/abstracts/search?q=Minsung%20Kim"> Minsung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Junhyun%20Cho"> Junhyun Cho</a>, <a href="https://publications.waset.org/abstracts/search?q=Ho-Sang%20Ra"> Ho-Sang Ra</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-Soo%20Lee"> Young-Soo Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Ki-Chang%20Chang"> Ki-Chang Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Surplus electricity can be converted into potential energy via pumped hydroelectric storage for future usage. Similarly, thermo-electric energy storage (TEES) uses heat pumps equipped with thermal storage to convert electrical energy into thermal energy; the stored energy is then converted back into electrical energy when necessary using a heat engine. The greatest advantage of this method is that, unlike pumped hydroelectric storage and compressed air energy storage, TEES is not restricted by geographical constraints. In this study, performance variation of the TEES according to the changes in cold-side storage temperature was investigated by simulation method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20storage%20system" title="energy storage system">energy storage system</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20pump" title=" heat pump"> heat pump</a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20mechanics" title=" fluid mechanics"> fluid mechanics</a>, <a href="https://publications.waset.org/abstracts/search?q=thermodynamics" title=" thermodynamics"> thermodynamics</a> </p> <a href="https://publications.waset.org/abstracts/12812/performance-variation-of-the-tees-according-to-the-changes-in-cold-side-storage-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12812.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">482</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">9017</span> The Influence of Air Temperature Controls in Estimation of Air Temperature over Homogeneous Terrain </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fariza%20Yunus">Fariza Yunus</a>, <a href="https://publications.waset.org/abstracts/search?q=Jasmee%20Jaafar"> Jasmee Jaafar</a>, <a href="https://publications.waset.org/abstracts/search?q=Zamalia%20Mahmud"> Zamalia Mahmud</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Nisa%E2%80%99%20Khairul%20Azmi"> Nurul Nisa’ Khairul Azmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nursalleh%20K.%20Chang"> Nursalleh K. Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Nursalleh%20K.%20Chang"> Nursalleh K. Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Variation of air temperature from one place to another is cause by air temperature controls. In general, the most important control of air temperature is elevation. Another significant independent variable in estimating air temperature is the location of meteorological stations. Distances to coastline and land use type are also contributed to significant variations in the air temperature. On the other hand, in homogeneous terrain direct interpolation of discrete points of air temperature work well to estimate air temperature values in un-sampled area. In this process the estimation is solely based on discrete points of air temperature. However, this study presents that air temperature controls also play significant roles in estimating air temperature over homogenous terrain of Peninsular Malaysia. An Inverse Distance Weighting (IDW) interpolation technique was adopted to generate continuous data of air temperature. This study compared two different datasets, observed mean monthly data of T, and estimation error of T–T’, where T’ estimated value from a multiple regression model. The multiple regression model considered eight independent variables of elevation, latitude, longitude, coastline, and four land use types of water bodies, forest, agriculture and build up areas, to represent the role of air temperature controls. Cross validation analysis was conducted to review accuracy of the estimation values. Final results show, estimation values of T–T’ produced lower errors for mean monthly mean air temperature over homogeneous terrain in Peninsular Malaysia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20temperature%20control" title="air temperature control">air temperature control</a>, <a href="https://publications.waset.org/abstracts/search?q=interpolation%20analysis" title=" interpolation analysis"> interpolation analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=peninsular%20Malaysia" title=" peninsular Malaysia"> peninsular Malaysia</a>, <a href="https://publications.waset.org/abstracts/search?q=regression%20model" title=" regression model"> regression model</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20temperature" title=" air temperature "> air temperature </a> </p> <a href="https://publications.waset.org/abstracts/12799/the-influence-of-air-temperature-controls-in-estimation-of-air-temperature-over-homogeneous-terrain" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12799.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">374</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">9016</span> Versatile Variation of Fischer Indolization in Green Synthesis of Nitro Substituted Tetrahydrocarbazole</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zubi%20Sadiq">Zubi Sadiq</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghazala%20Yaqub"> Ghazala Yaqub</a>, <a href="https://publications.waset.org/abstracts/search?q=Almas%20Hamid"> Almas Hamid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We wish to report herein a very stimulating variation in Fischer indole reaction by adopting solvent and catalyst free conditions. A concise synthesis of dinitro tetrahydrocarbazole derivative 3 was introduced without the use of any accelerating agent at ambient temperature with fairly good yield. Product was fully corroborated by UV, FTIR, 1H NMR, 13C NMR, MS, and CHN analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fischer%20indole%20reaction" title="fischer indole reaction">fischer indole reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=neutral%20medium" title=" neutral medium"> neutral medium</a>, <a href="https://publications.waset.org/abstracts/search?q=solvent%20free%20synthesis" title=" solvent free synthesis"> solvent free synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=tetrahydrocarbazole" title=" tetrahydrocarbazole"> tetrahydrocarbazole</a> </p> <a href="https://publications.waset.org/abstracts/11748/versatile-variation-of-fischer-indolization-in-green-synthesis-of-nitro-substituted-tetrahydrocarbazole" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11748.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">358</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">9015</span> Structural, Magnetic, Dielectric, and Electrical Properties of ZnFe2O4 Nanoparticles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raghvendra%20Singh%20Yadav">Raghvendra Singh Yadav</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivo%20Ku%C5%99itka"> Ivo Kuřitka</a>, <a href="https://publications.waset.org/abstracts/search?q=Jarmila%20Vilcakova"> Jarmila Vilcakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Pavel%20Urbanek"> Pavel Urbanek</a>, <a href="https://publications.waset.org/abstracts/search?q=Michal%20Machovsky"> Michal Machovsky</a>, <a href="https://publications.waset.org/abstracts/search?q=Milan%20Masa%C5%99"> Milan Masař</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20Holek"> Martin Holek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> ZnFe2O4 spinel ferrite nanoparticles were synthesized by sol-gel auto-combustion method. The synthesized spinel ferrite nanoparticles were annealed at different higher temperature to achieve different size nanoparticles. The as synthesized and annealed samples were characterized by powder X-ray Diffraction Spectroscopy, Raman Spectroscopy, Fourier Transform Infrared Spectroscopy, UV-Vis absorption Spectroscopy and Scanning Electron Microscopy. The magnetic properties were studied by vibrating sample magnetometer. The variation in magnetic parameters was noticed with variation in grain size. The dielectric constant and dielectric loss with variation of frequency shows normal behaviour of spinel ferrite. The variation in conductivity with variation in grain size is noticed. Modulus and Impedance Spectroscopy shows the role of grain and grain boundary on the electrical resistance and capacitance of different grain sized spinel ferrite nanoparticles. Acknowledgment: This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic – Program NPU I (LO1504). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spinel%20ferrite" title="spinel ferrite">spinel ferrite</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20properties" title=" dielectric properties"> dielectric properties</a> </p> <a href="https://publications.waset.org/abstracts/58192/structural-magnetic-dielectric-and-electrical-properties-of-znfe2o4-nanoparticles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58192.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">9014</span> Spectroscopic Characterization of Indium-Tin Laser Ablated Plasma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Hanif">Muhammad Hanif</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Salik"> Muhammad Salik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present research work we present the optical emission studies of the Indium (In)-Tin (Sn) plasma produced by the first (1064 nm) harmonic of an Nd: YAG nanosecond pulsed laser. The experimentally observed line profiles of neutral Indium (InI) and Tin (SnI) are used to extract the electron temperature (Te) using the Boltzmann plot method. Whereas, the electron number density (Ne) has been determined from the Stark broadening line profile method. The Te is calculated by varying the distance from the target surface along the line of propagation of plasma plume and also by varying the laser irradiance. Beside we have studied the variation of Ne as a function of laser irradiance as well as its variation with distance from the target surface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indium-tin%20plasma" title="indium-tin plasma">indium-tin plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20ablation" title=" laser ablation"> laser ablation</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20emission%20spectroscopy" title=" optical emission spectroscopy"> optical emission spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20temperature" title=" electron temperature"> electron temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20number%20density" title=" electron number density"> electron number density</a> </p> <a href="https://publications.waset.org/abstracts/26921/spectroscopic-characterization-of-indium-tin-laser-ablated-plasma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26921.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">529</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">9013</span> On Coverage Probability of Confidence Intervals for the Normal Mean with Known Coefficient of Variation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suparat%20Niwitpong">Suparat Niwitpong</a>, <a href="https://publications.waset.org/abstracts/search?q=Sa-aat%20Niwitpong"> Sa-aat Niwitpong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Statistical inference of normal mean with known coefficient of variation has been investigated recently. This phenomenon occurs normally in environment and agriculture experiments when the scientist knows the coefficient of variation of their experiments. In this paper, we constructed new confidence intervals for the normal population mean with known coefficient of variation. We also derived analytic expressions for the coverage probability of each confidence interval. To confirm our theoretical results, Monte Carlo simulation will be used to assess the performance of these intervals based on their coverage probabilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=confidence%20interval" title="confidence interval">confidence interval</a>, <a href="https://publications.waset.org/abstracts/search?q=coverage%20probability" title=" coverage probability"> coverage probability</a>, <a href="https://publications.waset.org/abstracts/search?q=expected%20length" title=" expected length"> expected length</a>, <a href="https://publications.waset.org/abstracts/search?q=known%0D%0Acoefficient%20of%20variation" title=" known coefficient of variation"> known coefficient of variation</a> </p> <a href="https://publications.waset.org/abstracts/11176/on-coverage-probability-of-confidence-intervals-for-the-normal-mean-with-known-coefficient-of-variation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11176.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">9012</span> Temperature Measurements of Corona Discharge in the SF6-N2 Gas Mixture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Lemzadmi">A. Lemzadmi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rotational and vibrational temperatures of the SF6-N2 gas mixture are spectroscopically measured over a pressure range of 2-14 bars. The spectra obtained of the light emission of the corona discharge were recorded with different values of pressure, voltage and current together with the variation of the position of the tip electrode. The emission of N2 is very dominant for different gas concentration and the second positive system 2S+ is the most important. The convolution method is used for the determination of the temperature. The Rotational temperature measurements of the plasma reveal gas temperatures in the range of 450-650°K and vibrational temperatures in the range of 1800-2200°K. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rotational%20temperatures" title="rotational temperatures">rotational temperatures</a>, <a href="https://publications.waset.org/abstracts/search?q=corona%20discharges" title=" corona discharges"> corona discharges</a>, <a href="https://publications.waset.org/abstracts/search?q=SF6-N2%20gas%20mixture" title=" SF6-N2 gas mixture"> SF6-N2 gas mixture</a>, <a href="https://publications.waset.org/abstracts/search?q=vibrational%20temperatures" title=" vibrational temperatures"> vibrational temperatures</a> </p> <a href="https://publications.waset.org/abstracts/33622/temperature-measurements-of-corona-discharge-in-the-sf6-n2-gas-mixture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33622.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">463</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=temperature%20variation&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=temperature%20variation&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=temperature%20variation&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=temperature%20variation&page=5">5</a></li> <li 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