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Merabet</title> <meta name="description" content="Search results for: Amina Merabet"> <meta name="keywords" content="Amina Merabet"> <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="Amina Merabet"> <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> 107</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Amina Merabet</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> The Study of the Determinants of Impulse Buying in Algeria </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amina%20Merabet">Amina Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Iznasni"> Ali Iznasni</a>, <a href="https://publications.waset.org/abstracts/search?q=Abderrezzak%20Benhabib"> Abderrezzak Benhabib</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Impulse buying is of strategic importance to distributors. Currently, distribution companies rely heavily on contextual variables (music, smells, colors, sound, design ...) in order to push customers towards purchase and consumption. As such, a crucial way for commercial brands to increase sales is to stimulate impulse buying. For this reason, this study aims at identifying the factors that initiate and encourage impulse buying, as well as the levers that help distributors highlight effective marketing techniques in order to encourage consumers to make impulse purchase. Thus, we try to show, upon a field survey of 590 buyers, the impact of situational elements of both the store and the product on achieving impulse buying. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Algerian%20shoppers" title="Algerian shoppers">Algerian shoppers</a>, <a href="https://publications.waset.org/abstracts/search?q=impulse%20buying" title=" impulse buying"> impulse buying</a>, <a href="https://publications.waset.org/abstracts/search?q=shopping%20environment" title=" shopping environment"> shopping environment</a>, <a href="https://publications.waset.org/abstracts/search?q=situational%20variables" title=" situational variables"> situational variables</a>, <a href="https://publications.waset.org/abstracts/search?q=product" title=" product"> product</a> </p> <a href="https://publications.waset.org/abstracts/27654/the-study-of-the-determinants-of-impulse-buying-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27654.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">351</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">106</span> The Conjugated Polymers in improving the Organic Solar Cells Efficiency</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samia%20Moulebhar">Samia Moulebhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Chahrazed%20Bendenia"> Chahrazed Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Souhila%20Bendenia"> Souhila Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanaa%20Merad-dib"> Hanaa Merad-dib</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarra%20Merabet"> Sarra Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Sid%20Ahmed%20Khantar"> Sid Ahmed Khantar</a>, <a href="https://publications.waset.org/abstracts/search?q=Baghdad%20Hadri"> Baghdad Hadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The photovoltaic solar field is today experiencing exponential advancement with the exploitation of new technological sectors of nanoparticles, namely the field of solar cells based on organic polymer materials. These cells are flexible, easy to process and low cost. This work includes a presentation of the conjugated polymer materials used in the design of photovoltaic technology devices while determining their properties and then the models used for the modeling of thin film photovoltaic cells heterojunction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photovoltaic" title="photovoltaic">photovoltaic</a>, <a href="https://publications.waset.org/abstracts/search?q=cells" title=" cells"> cells</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=organic" title=" organic"> organic</a> </p> <a href="https://publications.waset.org/abstracts/174383/the-conjugated-polymers-in-improving-the-organic-solar-cells-efficiency" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174383.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Investigation of Modified Microporous Materials for Environmental Depollution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Souhila%20Bendenia">Souhila Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Chahrazed%20Bendenia"> Chahrazed Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanaa%20Merad-Dib"> Hanaa Merad-Dib</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarra%20Merabet"> Sarra Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Samia%20Moulebhar"> Samia Moulebhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sid%20Ahmed%20Khantar"> Sid Ahmed Khantar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Today, environmental pollution is a major concernworldwide, threateninghumanhealth. Various techniques have been used, includingdegradation, filtration, advancedoxidationprocesses, ion exchange, membrane processes, and adsorption. The latter is one of the mostsuitablemethods, usinghighly efficient materials. In this study, NaX zeolite was modified with Cu or Ni at various rates. Following ion exchange, the samples were characterized by XRD, BET and SEM/EDX. After characterization, the exchanged zeolites were used for adsorption of various pollutants as CO2. Different thermodynamic parameters were studied such as Qst. XRD results show that the most intense peaks characteristic of 13X persist after the exchange reaction for all samples. The SEM images of our samples have uniform and regular crystal shapes. The results show that ion exhange with Cu or Ni affect the textural properties of X zeolites and prove that the exchange zeolites can be used as an adsorbent for depollution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=X%20zeolites%20%28NaX%29" title="X zeolites (NaX)">X zeolites (NaX)</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20exchange" title=" ion exchange"> ion exchange</a>, <a href="https://publications.waset.org/abstracts/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a> </p> <a href="https://publications.waset.org/abstracts/174447/investigation-of-modified-microporous-materials-for-environmental-depollution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174447.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">87</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">104</span> Chemical Composition Pistachio Harvested Bechloul (Algeria)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadjiba%20Mez%C4%B1ou-Chebout%C4%B1">Nadjiba Mezıou-Cheboutı</a>, <a href="https://publications.waset.org/abstracts/search?q=Amel%20Merabet"> Amel Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Yahia%20Chebout%C4%B1"> Yahia Cheboutı</a>, <a href="https://publications.waset.org/abstracts/search?q=Nassima%20Behidj">Nassima Behidj</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima-Zohra%20B%C4%B1ssaad%20et%20Salahedine%20Doumandj%C4%B1"> Fatima-Zohra Bıssaad et Salahedine Doumandjı </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Among the Anacardiaceae, the fruit (Pistacia vera L.) is the only species that produces edible fruits. The introduction of real pistachio was made in the early sixties by an FAO program in Algeria in several regions in the northern part of Algeria: Tlemcen, Sidi Bel Abbes, Batna, Bouira M'sila . Chemical analyzes of seeds pistachios were made on seeds from an orchard that localizes to Bechloul (Bouira) located in bioclimatic sub-humid temperate winter floor. Analyzes reveal dry matter content of 3.60 ± 0.45%, the water rate is 7.21 ± 0.36%. However, the fat content is 46.00 ± 0.90%, in average blood sugar, it is 4.02 ± 0.47%, the protein reached 29.88 ± 0.76%. Given the very interesting that high-fat food nutritional values, culture pistachio must be considered for its extension in Algeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pistachio" title="pistachio">pistachio</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20matter" title=" dry matter"> dry matter</a>, <a href="https://publications.waset.org/abstracts/search?q=fat" title=" fat"> fat</a>, <a href="https://publications.waset.org/abstracts/search?q=sugar" title=" sugar"> sugar</a>, <a href="https://publications.waset.org/abstracts/search?q=protein" title=" protein"> protein</a> </p> <a href="https://publications.waset.org/abstracts/13931/chemical-composition-pistachio-harvested-bechloul-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13931.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">355</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> The Chemical Composition of the Pistachio (Pistacia vera) Harvested Bechloul (Algeria)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadjiba%20Meziou-Chebouti">Nadjiba Meziou-Chebouti</a>, <a href="https://publications.waset.org/abstracts/search?q=Amel%20Merabet"> Amel Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Yahia%20Chebouti"> Yahia Chebouti</a>, <a href="https://publications.waset.org/abstracts/search?q=Nassima%20Behidj"> Nassima Behidj</a>, <a href="https://publications.waset.org/abstracts/search?q=Salahedine%20Doumandji"> Salahedine Doumandji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Among the Anacardiaceae, the fruit (Pistacia vera L.) is the only species that produces edible fruits. The introduction of real pistachio was made in the early sixties by an FAO program in Algeria in several regions in the northern part of Algeria: Tlemcen, Sidi Bel Abbes, Batna, Bouira M'sila. Chemical analyzes of seeds pistachios were made on seeds from an orchard that localizes to Bechloul (Bouira) located in bioclimatic sub-humid temperate winter floor. Analyzes reveal dry matter content of 3.60±0.45%, the water rate is 7.21±0.36%. However, the fat content is 46.00±0.90%, in average blood sugar, it is 4.02±0.47%, the protein reached 29.88±0.76%. Given the very interesting that high-fat food nutritional values, culture pistachio must be considered for its extension in Algeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pistachio" title="pistachio">pistachio</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20matter" title=" dry matter"> dry matter</a>, <a href="https://publications.waset.org/abstracts/search?q=fat" title=" fat"> fat</a>, <a href="https://publications.waset.org/abstracts/search?q=sugar" title=" sugar"> sugar</a>, <a href="https://publications.waset.org/abstracts/search?q=protein" title=" protein"> protein</a> </p> <a href="https://publications.waset.org/abstracts/22954/the-chemical-composition-of-the-pistachio-pistacia-vera-harvested-bechloul-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22954.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">102</span> Improved Photo-Active Layer Properties for Efficient Organic Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chahrazed%20Bendenia">Chahrazed Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Souhila%20Bendenia"> Souhila Bendenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Samia%20Moulebhar"> Samia Moulebhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanaa%20Merad-Dib"> Hanaa Merad-Dib</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarra%20Merabet"> Sarra Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Sid%20Ahmed%20Khantar"> Sid Ahmed Khantar</a>, <a href="https://publications.waset.org/abstracts/search?q=Baghdad%20Hadri"> Baghdad Hadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, organic solar cells (OSCs) have become the fundamental concern of researchers thanks to their advantages in terms of flexibility, manufacturing processes and low cost. The performance of these devices is influenced by various factors, such as the layers introduced in the stacking of the solar cell realized. In our work, the modeling of a reverse OSC under AM1.5G illumination will be determined. The photo-active polymer/fullerene layer will be analyzed from the polymer variation of this layer using the SCAPS simulator to extract the J-V characteristics: open circuit voltage (Voc), short circuit current (Jsc), filling factor (FF) and power conversion efficiency (η). The results obtained indicated that the materials used have a significant impact on improving the photovoltaic parameters of the devices studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar" title="solar">solar</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer" title=" polymer"> polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=simulator" title=" simulator"> simulator</a>, <a href="https://publications.waset.org/abstracts/search?q=characteristics" title=" characteristics"> characteristics</a> </p> <a href="https://publications.waset.org/abstracts/174231/improved-photo-active-layer-properties-for-efficient-organic-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174231.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">78</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">101</span> Place and Role of Corporate Governance in Japan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Feddaoui%20Amina">Feddaoui Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In a broad sense, corporate governance covers the organization of the control and management. The term is also used in a narrower sense, to refer to the relationship between shareholders, and the company’s board. There are a lot of discussions devoted to the understanding of the corporate governance role and its principles. In this paper, we are going to describe the definition of corporate governance as a control system and its principles, and find the role of corporate governance and its pillars. Finally, we are going to drop the theoretical study on the case of Japan. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corporate%20governance" title="corporate governance">corporate governance</a>, <a href="https://publications.waset.org/abstracts/search?q=place" title=" place"> place</a>, <a href="https://publications.waset.org/abstracts/search?q=role" title=" role"> role</a>, <a href="https://publications.waset.org/abstracts/search?q=Japan" title=" Japan"> Japan</a> </p> <a href="https://publications.waset.org/abstracts/48719/place-and-role-of-corporate-governance-in-japan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48719.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">100</span> Modeling Salam Contract for Profit and Loss Sharing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dchieche%20Amina">Dchieche Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=Aboulaich%20Rajae"> Aboulaich Rajae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Profit and loss sharing suggests an equitable sharing of risks and profits between the parts involved in a financial transaction. Salam is a contract in which advance payment is made for goods to be delivered at a future date. The purpose of this work is to price a new contract for profit and loss sharing based on Salam contract, using Khiyar Al Ghabn which is an agreement of choice in case of misrepresent facts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Islamic%20finance" title="Islamic finance">Islamic finance</a>, <a href="https://publications.waset.org/abstracts/search?q=shariah%20compliance" title=" shariah compliance"> shariah compliance</a>, <a href="https://publications.waset.org/abstracts/search?q=profi%0Ct%20and%20loss%20sharing" title=" profit and loss sharing"> profit and loss sharing</a>, <a href="https://publications.waset.org/abstracts/search?q=derivatives" title=" derivatives"> derivatives</a>, <a href="https://publications.waset.org/abstracts/search?q=risks" title=" risks"> risks</a>, <a href="https://publications.waset.org/abstracts/search?q=hedging" title=" hedging"> hedging</a>, <a href="https://publications.waset.org/abstracts/search?q=salam%20contract" title=" salam contract"> salam contract</a> </p> <a href="https://publications.waset.org/abstracts/41170/modeling-salam-contract-for-profit-and-loss-sharing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41170.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">332</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">99</span> Waad Bil Mourabaha Pricing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dchieche%20Amina">Dchieche Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=Aboulaich%20Rajae"> Aboulaich Rajae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, we will modelize Waad Bil Mourabaha contract. This islamic contract provides the right to buy goods at a future date with a Mourabaha. Waad is a promise of sale or purchase of goods, declared in a unilateral way. In spite of the divergence between some schools of Islamic law about the Waad, this contract will allow us to study sophisticated and interesting contract: Waad Bil Mourabaha that can be used for hedging. In order to price Waad Bil Mourabaha contract, we will use an adapted Black and Scholes model using the Shariah compliant assumptions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Islamic%20finance" title="Islamic finance">Islamic finance</a>, <a href="https://publications.waset.org/abstracts/search?q=Black-Scholes%20model" title=" Black-Scholes model"> Black-Scholes model</a>, <a href="https://publications.waset.org/abstracts/search?q=call%20option" title=" call option"> call option</a>, <a href="https://publications.waset.org/abstracts/search?q=risks" title=" risks"> risks</a>, <a href="https://publications.waset.org/abstracts/search?q=hedging" title=" hedging"> hedging</a> </p> <a href="https://publications.waset.org/abstracts/15514/waad-bil-mourabaha-pricing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15514.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">507</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">98</span> Maximum Power Point Tracking Based on Estimated Power for PV Energy Conversion System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zainab%20Almukhtar">Zainab Almukhtar</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Merabet"> Adel Merabet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a method for maximum power point tracking of a photovoltaic energy conversion system is presented. This method is based on using the difference between the power from the solar panel and an estimated power value to control the DC-DC converter of the photovoltaic system. The difference is continuously compared with a preset error permitted value. If the power difference is more than the error, the estimated power is multiplied by a factor and the operation is repeated until the difference is less or equal to the threshold error. The difference in power will be used to trigger a DC-DC boost converter in order to raise the voltage to where the maximum power point is achieved. The proposed method was experimentally verified through a PV energy conversion system driven by the OPAL-RT real time controller. The method was tested on varying radiation conditions and load requirements, and the Photovoltaic Panel was operated at its maximum power in different conditions of irradiation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=control%20system" title="control system">control system</a>, <a href="https://publications.waset.org/abstracts/search?q=error" title=" error"> error</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20panel" title=" solar panel"> solar panel</a>, <a href="https://publications.waset.org/abstracts/search?q=MPPT%20tracking" title=" MPPT tracking"> MPPT tracking</a> </p> <a href="https://publications.waset.org/abstracts/41868/maximum-power-point-tracking-based-on-estimated-power-for-pv-energy-conversion-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41868.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">283</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">97</span> Power Management Strategy for Solar-Wind-Diesel Stand-Alone Hybrid Energy System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Md.%20Aminul%20Islam">Md. Aminul Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Merabet"> Adel Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachid%20Beguenane"> Rachid Beguenane</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20Ibrahim"> Hussein Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a simulation and mathematical model of stand-alone solar-wind-diesel based hybrid energy system (HES). A power management system is designed for multiple energy resources in a stand-alone hybrid energy system. Both Solar photovoltaic and wind energy conversion system consists of maximum power point tracking (MPPT), voltage regulation, and basic power electronic interfaces. An additional diesel generator is included to support and improve the reliability of stand-alone system when renewable energy sources are not available. A power management strategy is introduced to distribute the generated power among resistive load banks. The frequency regulation is developed with conventional phase locked loop (PLL) system. The power management algorithm was applied in Matlab®/Simulink® to simulate the results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20photovoltaic" title="solar photovoltaic">solar photovoltaic</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20energy" title=" wind energy"> wind energy</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=hybrid%20energy%20system" title=" hybrid energy system"> hybrid energy system</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20management" title=" power management"> power management</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20and%20voltage%20regulation" title=" frequency and voltage regulation"> frequency and voltage regulation</a> </p> <a href="https://publications.waset.org/abstracts/10332/power-management-strategy-for-solar-wind-diesel-stand-alone-hybrid-energy-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10332.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">454</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">96</span> The Antimicrobial Activity of the Essential Oil of Salvia officinalis Harvested in Boumerdes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Mez%C4%B1ou-Chebout%C4%B1">N. Mezıou-Cheboutı</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Merabet"> A. Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Behidj"> N. Behidj</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Z.%20Bissaad"> F. Z. Bissaad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Algeria by its location, offers a rich and diverse vegetation. A large number of aromatic and medicinal plants grow spontaneously. The interest in these plants has continued to grow in recent years. Their particular properties due to the essential oil fraction can be utilized to treat microbial infections. To this end, and in the context of the valuation of the Algerian flora, we became interested in the species of the family Lamiaceae which is one of the most used as a global source of spices and extracts strong families antimicrobial potency. The plant on which we have based our choice is a species of sage "Salvia officinalis" from the Isser localized region within the province of Boumerdes. This work focuses on the study of the antimicrobial activity of essential oil extracted from the leaves of salvia officinalis. The extraction is carried out by HE hydrodistillation and reveals a yield of 1.06℅. The study of the antimicrobial activity of the essential oil by the method of at aromatogramme shown that Gram positive bacteria are most susceptible (Staphylococcus aureus and Bacillus subtilis) with a strong inhibition of growth. The yeast Candida albicans fungus Aspergillus niger and have shown moderately sensitive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salvia%20officinalis" title="Salvia officinalis">Salvia officinalis</a>, <a href="https://publications.waset.org/abstracts/search?q=steam%20distillation" title=" steam distillation"> steam distillation</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title=" essential oil"> essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=aromatogram" title=" aromatogram"> aromatogram</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-microbial%20activity" title=" anti-microbial activity"> anti-microbial activity</a> </p> <a href="https://publications.waset.org/abstracts/9978/the-antimicrobial-activity-of-the-essential-oil-of-salvia-officinalis-harvested-in-boumerdes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9978.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">317</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">95</span> UK GAAP and IFRS Standards: Similarities and Differences</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Feddaoui%20Amina">Feddaoui Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper aimed to help researchers and international companies to the differences and similarities between IFRS (International financial reporting standards) and UK GAAP or UK accounting principles, and to the accounting changes between standard setting of the International Accounting Standards Board and the Accounting Standards Board in United Kingdom. We will use in this study statistical methods to calculate similarities and difference frequencies between the UK standards and IFRS standards, according to the PricewaterhouseCoopers report in 2005. We will use the one simple test to confirm or refuse our hypothesis. In conclusion, we found that the gap between UK GAAP and IFRS is small. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=accounting" title="accounting">accounting</a>, <a href="https://publications.waset.org/abstracts/search?q=UK%20GAAP" title=" UK GAAP"> UK GAAP</a>, <a href="https://publications.waset.org/abstracts/search?q=IFRS" title=" IFRS"> IFRS</a>, <a href="https://publications.waset.org/abstracts/search?q=similarities" title=" similarities"> similarities</a>, <a href="https://publications.waset.org/abstracts/search?q=differences" title=" differences"> differences</a> </p> <a href="https://publications.waset.org/abstracts/73469/uk-gaap-and-ifrs-standards-similarities-and-differences" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73469.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">210</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">94</span> Creative Accounting as a Financial Numbers Game</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Feddaoui%20Amina">Feddaoui Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Through this study we will try to shed light on the theoretical framework proposed for understanding creative accounting as a financial numbers game and one of the most important techniques of accounts manipulation, its main actors and its practices. We will discover the role of the modified Jones model (1995) in detecting creative accounting practices using discretionary accruals. Finally we will try to confirm the importance and the need to address this type of practices using corporate governance as a main control system and an important defense line to reduce these dangerous accounts manipulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=financial%20numbers%20game" title="financial numbers game">financial numbers game</a>, <a href="https://publications.waset.org/abstracts/search?q=creative%20accounting" title=" creative accounting"> creative accounting</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20Jones%20model" title=" modified Jones model"> modified Jones model</a>, <a href="https://publications.waset.org/abstracts/search?q=accounts%20manipulation" title=" accounts manipulation"> accounts manipulation</a> </p> <a href="https://publications.waset.org/abstracts/4023/creative-accounting-as-a-financial-numbers-game" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4023.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">477</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">93</span> Antimicrobial Activity of Oil Extracted from the Almonds of the Fruits of Argania spinosa in the West of Algeria (Mostaganem)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nassima%20Behidj-Benyounes">Nassima Behidj-Benyounes</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadjiba%20Chebouti"> Nadjiba Chebouti</a>, <a href="https://publications.waset.org/abstracts/search?q=Thoraya%20Dahmane"> Thoraya Dahmane</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Henni"> Amina Henni </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work examines the study of the antimicrobrial effect of oil extracted from the seeds of Argania spinosa L. (Sapotaceae) in the area of Stida (Mostaganem). This natural substance is extracted by using the Soxhlet. The antimicrobial activity of this oil is evaluated on several microorganisms. It has been tested on five bacterial strains; Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Bacillus subtilis and Staphylococcus aureus. The extract has been studied by using Candida albicans. It should be noted that these agents are characterized by a high frequency of contamination and pathogenicity. Through this study, we note that these microorganisms are moderately sensitive to the argan oil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Argania%20spinosa" title="Argania spinosa">Argania spinosa</a>, <a href="https://publications.waset.org/abstracts/search?q=oil" title=" oil"> oil</a>, <a href="https://publications.waset.org/abstracts/search?q=several%20microorganisms" title=" several microorganisms"> several microorganisms</a>, <a href="https://publications.waset.org/abstracts/search?q=almonds" title=" almonds"> almonds</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a> </p> <a href="https://publications.waset.org/abstracts/8822/antimicrobial-activity-of-oil-extracted-from-the-almonds-of-the-fruits-of-argania-spinosa-in-the-west-of-algeria-mostaganem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8822.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">416</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">92</span> Evaluation of Cytotoxic Effect of Two Diterpenes from Plectranthus barbatus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nawal%20Al%20Musayeib">Nawal Al Musayeib</a>, <a href="https://publications.waset.org/abstracts/search?q=Musarat%20Amina"> Musarat Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=Perwez%20Alam"> Perwez Alam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plectranthus barbatus Andrews (Lamiaceae) is the most common species of genus Plectranthus. It is used for treating various ailments. In this study, two rare diterpenes 11,14-dihydroxy-8,11,13-abietatrien-7-one (1) and 12-hydroxyabieta-8(14),9(11),12-trien-7-one (2) were isolated for the first time from P. barbatus. Their chemical structures were verified utilizing various spectroscopic experiments. The effect of diterpenes against undifferentiated/anaplastic thyroid cancer cell line (FRO) was evaluated and they were quantitatively analysed using HPTLC method. The two diterpenes were found to be cytotoxic, however compound 1 showed significant cytotoxic effects where 95% reduction in the cell viability was observed in different time intervals. The quantity of compound 1 and compound 2 in PBCE were found to be 2.04 and15.97 μg/mg, respectively of dried weight of the extract. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=abietatrien" title="abietatrien">abietatrien</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=diterpenes" title=" diterpenes"> diterpenes</a>, <a href="https://publications.waset.org/abstracts/search?q=Plectranthus%20barbatus" title=" Plectranthus barbatus"> Plectranthus barbatus</a> </p> <a href="https://publications.waset.org/abstracts/71874/evaluation-of-cytotoxic-effect-of-two-diterpenes-from-plectranthus-barbatus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71874.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">255</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">91</span> Current Environmental Accounting Disclosure Requirements and Compliance by Nigerian Oil Companies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amina%20Jibrin%20Ahmed">Amina Jibrin Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The environment is mankind's natural habitat. Industrial activities over time have taken their toll on it in the form of deterioration and degradation. The petroleum industry is particularly notorious for its negative impact on its host environments. The realization that this poses a threat to sustainability led to the increased awareness and subsequent recognition of the importance of environmental disclosure in financial statements. This paper examines the laws and regulations put in place by the Nigerian Government to mitigate this impact, and the level of compliance by Shell Nigeria, the pioneer and largest oil company in the country. Based on the disclosure made, this paper finds there is indeed a high level of compliance by that company, and voluntary disclosure moreover. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental%20accounting" title="environmental accounting">environmental accounting</a>, <a href="https://publications.waset.org/abstracts/search?q=legitimacy%20theory" title=" legitimacy theory"> legitimacy theory</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20impact%20assessment" title=" environmental impact assessment"> environmental impact assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20disclosure" title=" environmental disclosure"> environmental disclosure</a>, <a href="https://publications.waset.org/abstracts/search?q=host%20communities" title=" host communities"> host communities</a> </p> <a href="https://publications.waset.org/abstracts/14266/current-environmental-accounting-disclosure-requirements-and-compliance-by-nigerian-oil-companies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14266.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">517</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">90</span> Chemical Composition and Antibacterial Activity of Ceratonia siliqua L. Growing in Boumerdes, Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Meziou-Chebouti">N. Meziou-Chebouti</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Merabet"> A. Merabet</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Chebouti%20N.%20Behidj"> Y. Chebouti N. Behidj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work is a contribution to the knowledge of physicochemical characteristics of mature carob followed by evaluation of the activity, antimicrobial phenolics leaves and green pods of Ceratonia siliqua L. physicochemical study shows that mature carob it has a considerable content of sugar (50.90%), but poor in proteins (7%), fat (8%) and also has a high mineral content. The results obtained from phenolic extracts of leaves and green pods of Ceratonia siliqua L. show a wealth leaf phenolic extract especially flavonoids (0,545 mg EqQ/g) relative to the extract of green pods (0,226 mgEqQ/g). Polyphenols leaves have a slightly inhibitory effect on the growth of strains: Staphylococcus aureus, Escherichia coli, Klebsiella pneumoiae, Streptococcus sp and Sanmonella enteritidis, a strong inhibitory effect on the growth of Pseudomonas strain aerogenosa. Moreover, polyphenols pod have a slightly inhibitory effect on the growth of Streptococcus sp strains, Pseudomonas and aerogenosa Sanmonella enteritidis, a slightly inhibitory effect on the growth of Klebsiella pneumoniae strains, E. coli and Staphylococcus aureus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title="antimicrobial activity">antimicrobial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteria" title=" bacteria"> bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=clove" title=" clove"> clove</a>, <a href="https://publications.waset.org/abstracts/search?q=Ceratonia%20siliqua" title=" Ceratonia siliqua"> Ceratonia siliqua</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenols" title=" polyphenols"> polyphenols</a> </p> <a href="https://publications.waset.org/abstracts/16809/chemical-composition-and-antibacterial-activity-of-ceratonia-siliqua-l-growing-in-boumerdes-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16809.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">354</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">89</span> Candida antarctica Lipase-B Catalyzed Alkaline-Hydrolysis of Some Aryl-Alkyl Acetate in Non-Aqueous Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Merabet-Khelassi">M. Merabet-Khelassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Houiene"> Z. Houiene</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Aribi-Zouioueche"> L. Aribi-Zouioueche</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Riant"> O. Riant</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lipases (EC.3.1.1.3) are efficient biotools widely used for their remarkable chemo-, regio- and enantio-selectivity, especially, in kinetic resolution of racemates. They offer access to a large panel of enantiopure building blocks, such as secondary benzylic alcohols, commonly used as synthetic intermediates in pharmaceutical and agrochemical industries. Due to the stability of lipases in both water and organic solvents poor in water, they are able to catalyze both transesterifications of arylalkylcarbinols and hydrolysis of their corresponding acetates. The use of enzymatic hydrolysis in aqueous media still limited. In this presentation, we expose a practical methodology for the preparation of optically enriched acetates using a Candida antarctica lipase B-catalyzed hydrolysis in non-aqueous media in the presence of alkaline carbonate salts. The influence of several parameters which can intervene on the enzymatic efficiency such as the impact of the introduction of the carbonates salts, its amount and the nature of the alkaline earth metal are discussed. The obtained results show that the use of sodium carbonate with CAL-B enhances drastically both reactivity and selectivity of this immobilized lipase. In all cases, the resulting alcohols and remaining acetates are obtained in high ee values (up to > 99 %), and the selectivities reach (E > 500). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alkaline-hydrolysis" title="alkaline-hydrolysis">alkaline-hydrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=enzymatic%20kinetic%20resolution" title=" enzymatic kinetic resolution"> enzymatic kinetic resolution</a>, <a href="https://publications.waset.org/abstracts/search?q=lipases" title=" lipases"> lipases</a>, <a href="https://publications.waset.org/abstracts/search?q=arylalkylcarbinol" title=" arylalkylcarbinol"> arylalkylcarbinol</a>, <a href="https://publications.waset.org/abstracts/search?q=non-aqueous%20media" title=" non-aqueous media"> non-aqueous media</a> </p> <a href="https://publications.waset.org/abstracts/75965/candida-antarctica-lipase-b-catalyzed-alkaline-hydrolysis-of-some-aryl-alkyl-acetate-in-non-aqueous-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75965.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">162</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">88</span> Effects of the Ambient Temperature and the Defect Density on the Performance the Solar Cell (HIT)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bouzaki%20Mohammed%20Moustafa">Bouzaki Mohammed Moustafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Benyoucef%20Boumediene"> Benyoucef Boumediene</a>, <a href="https://publications.waset.org/abstracts/search?q=Benouaz%20Tayeb"> Benouaz Tayeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Benhamou%20Amina"> Benhamou Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ambient temperature and the defects density in the Hetero-junction with Intrinsic Thin layers solar cells (HIT) strongly influence their performances. In first part, we presented the bands diagram on the front/back simulated solar cell based on a-Si: H / c-Si (p)/a-Si:h. In another part, we modeled the following layers structure: ZnO/a-Si:H(n)/a-Si:H(i)/c-Si(p)/a-Si:H(p)/Ag where we studied the effect of the ambient temperature and the defects density in the gap of the crystalline silicon layer on the performance of the heterojunction solar cell with intrinsic layer (HIT). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heterojunction%20solar%20cell" title="heterojunction solar cell">heterojunction solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cell%20performance" title=" solar cell performance"> solar cell performance</a>, <a href="https://publications.waset.org/abstracts/search?q=bands%20diagram" title=" bands diagram"> bands diagram</a>, <a href="https://publications.waset.org/abstracts/search?q=ambient%20temperature" title=" ambient temperature"> ambient temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=defect%20density" title=" defect density "> defect density </a> </p> <a href="https://publications.waset.org/abstracts/21496/effects-of-the-ambient-temperature-and-the-defect-density-on-the-performance-the-solar-cell-hit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21496.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">507</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">87</span> Mineralogical Characteristics of Phosphates from the Djebel Onk Deposits: Treatment and Valorization of Co-Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samira%20Tlili">Samira Tlili</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Grairia"> Amina Grairia</a>, <a href="https://publications.waset.org/abstracts/search?q=Sihem%20Benayache"> Sihem Benayache</a>, <a href="https://publications.waset.org/abstracts/search?q=Saida%20Bouyegh"> Saida Bouyegh</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabrina%20Ladjama"> Sabrina Ladjama</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelmoumen%20Guedri"> Abdelmoumen Guedri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phosphorites from Djebel Onk Tebessa/Algeria deposit contain a CaO of 50-52 wt. % and P₂O₅ level of ≥ 30.20 wt. %. The microstructure revealed using a spectroscopy electronic microscope (SEM) consists of phosphate granules with an ovular form. In this investigation, we have identified phosphate with varying particle sizes using mineralogical methods. The phosphogypsum formed by the mineralization of natural phosphate has also been discovered. This co-product was formed during the attack on natural phosphates by sulfuric acid. This study demonstrated the effectiveness of the thermoanalytical technique of differential scanning calorimetry (DSC), X-ray diffraction, and EDS/MEB analysis. FTIR analyses also validated the identification of mineral phases with the observation of bands from structural phosphate groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phosphate" title="phosphate">phosphate</a>, <a href="https://publications.waset.org/abstracts/search?q=Djebel%20Onk%20deposit" title=" Djebel Onk deposit"> Djebel Onk deposit</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralogy" title=" mineralogy"> mineralogy</a>, <a href="https://publications.waset.org/abstracts/search?q=valorization" title=" valorization"> valorization</a>, <a href="https://publications.waset.org/abstracts/search?q=phosphogypsum" title=" phosphogypsum"> phosphogypsum</a> </p> <a href="https://publications.waset.org/abstracts/191994/mineralogical-characteristics-of-phosphates-from-the-djebel-onk-deposits-treatment-and-valorization-of-co-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191994.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">22</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">86</span> Simulation and Experimental of Solid Mixing of Free Flowing Material Using Solid Works in V-Blender</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amina%20Bouhaouche">Amina Bouhaouche</a>, <a href="https://publications.waset.org/abstracts/search?q=Zineb%20Kaoua"> Zineb Kaoua</a>, <a href="https://publications.waset.org/abstracts/search?q=Lila%20Lahreche"> Lila Lahreche</a>, <a href="https://publications.waset.org/abstracts/search?q=Sid%20Ali%20Kaoua"> Sid Ali Kaoua</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamel%20Daoud"> Kamel Daoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study is to present a novel approach for analyzing the solid dispersion and mixing performance by a numerical simulation method using solid works software of a monodisperse particles for a large span of time reached 20 minutes. To assure the viability of a numerical simulation, an experimental study of a binary mixture of monodiperse particles taken as free flowing material in a V blender was developed on the basis of relative standard deviation curves, and the arrangement of the particles in the vessel. The experimental results were discussed and compared to the numerical simulation results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=non-cohesive%20material" title="non-cohesive material">non-cohesive material</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20mixing" title=" solid mixing"> solid mixing</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20works" title=" solid works"> solid works</a>, <a href="https://publications.waset.org/abstracts/search?q=v-blender" title=" v-blender"> v-blender</a> </p> <a href="https://publications.waset.org/abstracts/38632/simulation-and-experimental-of-solid-mixing-of-free-flowing-material-using-solid-works-in-v-blender" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38632.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">390</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">85</span> Dynamical and Thermal Study of Twin Impinging Jets a Vertical Plate with Various Jet Velocities and Impinging Distance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Louaifi%20Hamaili%20Samira">Louaifi Hamaili Samira</a>, <a href="https://publications.waset.org/abstracts/search?q=Mataoui%20Amina"> Mataoui Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheraitia%20Tadjeddine"> Cheraitia Tadjeddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This investigation proposes a numerical analysis of two turbulent parallel jets impinging a heated plate. The heat transfer enhancement is carried out according of the main parameters of the jet-wall interaction. The numerical solution of the stationary equations (RANS) is performed by the finite volume method using the k - ε model. A parametric study is performed to evaluate simultaneously the effect of nozzle-plate distance and velocity ratios in the range 0≤λ≤1. It is found that good local cooling is obtained for λ= 0.25 when the impinging distance is between 4w and 8w than for velocity ratios λ=1 and λ= 0.75. On the other hand, for impinging distances exceeding 8w, the velocity ratio λ =0.75 is more appropriate for good local cooling of the plate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=two%20unequal%20jets" title="two unequal jets">two unequal jets</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulence" title=" turbulence"> turbulence</a>, <a href="https://publications.waset.org/abstracts/search?q=mixing" title=" mixing"> mixing</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a> </p> <a href="https://publications.waset.org/abstracts/188280/dynamical-and-thermal-study-of-twin-impinging-jets-a-vertical-plate-with-various-jet-velocities-and-impinging-distance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188280.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">32</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">84</span> Heat Transfer Performance for Turbulent Flow through a Tube Using Baffles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amina%20Benabderrahmane">Amina Benabderrahmane</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelylah%20Benazza"> Abdelylah Benazza</a>, <a href="https://publications.waset.org/abstracts/search?q=Samir%20Laouedj"> Samir Laouedj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Three dimensional numerical investigation of heat transfer enhancement inside a non-uniformly heated parabolic trough solar collector fitted with baffles under turbulent flow was studied in the current paper. Molten salt is used as heat transfer fluid and simulations are carried out in ANSYS computational fluid dynamics (CFD). The present data was validating by the empirical correlations available in the literatures and good agreement was obtained. The Nusselt number and friction factor values for using baffles are considerably higher than that for smooth pipe. The emplacement and the distance between two consecutive baffles have an effect non-negligible on heat transfer characteristics; the results demonstrate that the temperature gradient reduces with the inclusion of inserts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Baffles" title="Baffles">Baffles</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20enhancement" title=" heat transfer enhancement"> heat transfer enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=molten%20salt" title=" molten salt"> molten salt</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte%20Carlo%20ray%20trace%20technique" title=" Monte Carlo ray trace technique"> Monte Carlo ray trace technique</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20investigation" title=" numerical investigation "> numerical investigation </a> </p> <a href="https://publications.waset.org/abstracts/56049/heat-transfer-performance-for-turbulent-flow-through-a-tube-using-baffles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56049.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">300</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">83</span> State of Art in Software Requirement Negotiation Process Models</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shamsu%20Abdullahi">Shamsu Abdullahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nazir%20Yusuf"> Nazir Yusuf</a>, <a href="https://publications.waset.org/abstracts/search?q=Hazrina%20Sofian"> Hazrina Sofian</a>, <a href="https://publications.waset.org/abstracts/search?q=Abubakar%20Zakari"> Abubakar Zakari</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Nura"> Amina Nura</a>, <a href="https://publications.waset.org/abstracts/search?q=Salisu%20Suleiman"> Salisu Suleiman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Requirements negotiation process models help in resolving conflicting requirements of the heterogeneous stakeholders in the software development industry. This is to achieve a shared vision of software projects to be developed by the industry. Negotiating stakeholder agreements is a serious and difficult task in the software development process. There are many requirements negotiation process models that effectively negotiate stakeholder agreements that have been proposed by the research community. Other issues in the requirements negotiation research domain include stakeholder communication, decision-making, lack of negotiation interoperability, and managing requirement changes and analysis. This study highlights the current state of the art in the existing software requirements negotiation process models. The study also describes the issues and limitations in the software requirements negotiations process models. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=requirements" title="requirements">requirements</a>, <a href="https://publications.waset.org/abstracts/search?q=negotiation" title=" negotiation"> negotiation</a>, <a href="https://publications.waset.org/abstracts/search?q=stakeholders" title=" stakeholders"> stakeholders</a>, <a href="https://publications.waset.org/abstracts/search?q=agreements" title=" agreements"> agreements</a> </p> <a href="https://publications.waset.org/abstracts/161397/state-of-art-in-software-requirement-negotiation-process-models" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161397.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">82</span> Appraisal of Maintenance Practices in Selected Tourist Attraction in Bauchi State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eldah%20Ephraim%20Buba">Eldah Ephraim Buba</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Bata%20Zoaka"> Amina Bata Zoaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Aishatu%20Ibrahim"> Aishatu Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study appraised maintenance practices in selected tourist attractions in Bauchi state, Nigeria. Four tourist attractions were used for the research. Checklists were used to assess operations and repairs maintenance practices in the different attractions. The study carried out personal assessment thrice in six months without prior knowledge of the staff in charge for operational maintenance. Records of repairs maintenance from the attractions maintenance unit for a period of ten years were assessed using the checklists. The findings of the study show that operations maintenance was not adequately carried out in the four tourists attractions. Repairs maintenance was carried out in Yankari game reserve and safari, but repairs maintenance was poor in the other three attractions. The study therefore, recommends that adequate maintenance should be practiced in tourist attractions to expand the lifespan of the facilities and also encourage tourist patronage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=appraisal" title="appraisal">appraisal</a>, <a href="https://publications.waset.org/abstracts/search?q=maintenance" title=" maintenance"> maintenance</a>, <a href="https://publications.waset.org/abstracts/search?q=practices" title=" practices"> practices</a>, <a href="https://publications.waset.org/abstracts/search?q=tourist%20attraction" title=" tourist attraction"> tourist attraction</a> </p> <a href="https://publications.waset.org/abstracts/31847/appraisal-of-maintenance-practices-in-selected-tourist-attraction-in-bauchi-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31847.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">300</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">81</span> Electronic and Magnetic Properties of the Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃ and Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃ Perovskites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sari%20Aouatef">Sari Aouatef</a>, <a href="https://publications.waset.org/abstracts/search?q=Larabi%20Amina"> Larabi Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> First-principles calculations within density functional theory based are used to investigate the influence of doped rare earth elements on some properties of perovskite systems Dy₀.₀₆₂₅Y₀.₉₃₇₅FeO₃ and Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃. The electronic and magnetic properties are studied by means of the full-potential linearized augmented plane wave method with Vasp code. The calculated densities of states presented in this work identify the semiconducting behavior for Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃, and the semi-metallic behavior for Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃. Besides, to investigate magnetic properties of several compounds, four magnetic configurations are considered (ferromagnetic (FM), antiferromagnetic type A (A-AFM), antiferromagnetic type C (C-AFM) and antiferromagnetic type G (G-AFM). By doping the Dy element, the system shows different changes in the magnetic order and electronic structure. It is found that Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃ exhibits the strongest magnetic change corresponding to the transition to the ferromagnetic order with the largest magnetic moment of 4.997. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=Perovskites" title=" Perovskites"> Perovskites</a>, <a href="https://publications.waset.org/abstracts/search?q=multiferroic" title=" multiferroic"> multiferroic</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a> </p> <a href="https://publications.waset.org/abstracts/144435/electronic-and-magnetic-properties-of-the-dy00625y09375-feo3-and-dy0125-y0875-feo3-perovskites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144435.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">141</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">80</span> Effects of the Type of Soil on the Efficiency of a Bioremediation Dispositive by Using Bacterium Hydrocarbonoclastes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amel%20Bouderhem">Amel Bouderhem</a>, <a href="https://publications.waset.org/abstracts/search?q=Aminata%20Ould%20El%20Hadj%20Khelil"> Aminata Ould El Hadj Khelil</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20N.%20Djrarbaoui"> Amina N. Djrarbaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Aroussi%20Aroussi"> Aroussi Aroussi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work aims to find the influence of the nature of the soil on the effectiveness of the biodegradation of hydrocarbons by a mixture of bacterial strains hydrocarbonoclastes. Processes of bioaugmentation and biostimulation trial are applied to samples of soils polluted voluntarily by the crude oil. For the evaluation of the biodegradation of hydrocarbons, the bacterial load, the pH and organic carbon total are followed in the different experimental batches. He bacterial load of the sandy soil varies among the witnesses of 45,2 .108 CFU/ml at the beginning of the experimentation to 214,07.108 CFU/ml at the end of the experiment. Of the soil silty-clay varies between 103,31 .108 CFU/ml and 614,86.108 CFU/ml . It was found a strong increase in the bacterial biomass during the processing of all samples. This increase is more important in the samples of sand bioaugmente or biomass increased from 63.16 .108 CFU/ml to 309.68 .108 CFU/ml than in soil samples silty clay- bioaugmente whose content in bacteria evolved of 73,01 .108 CFU/ml to 631.80 . 108CFU/ml <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pollution" title="pollution">pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrocarbons" title=" hydrocarbons"> hydrocarbons</a>, <a href="https://publications.waset.org/abstracts/search?q=bioremediation" title=" bioremediation"> bioremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteria%20hydrocarbonoclastes" title=" bacteria hydrocarbonoclastes"> bacteria hydrocarbonoclastes</a>, <a href="https://publications.waset.org/abstracts/search?q=ground" title=" ground"> ground</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a> </p> <a href="https://publications.waset.org/abstracts/24509/effects-of-the-type-of-soil-on-the-efficiency-of-a-bioremediation-dispositive-by-using-bacterium-hydrocarbonoclastes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24509.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">473</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">79</span> Synthesis and Physico-Chemical Analysis of Jatropha curcas Seed Oil for ISO VG32 and VG46 Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Nuhu">M. Nuhu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20S.%20Amina"> M. S. Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20H.%20Aminu"> A. H. Aminu</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20J.%20Abbas"> A. J. Abbas</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Salahudeen"> N. Salahudeen</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Z.%20Yusuf"> A. Z. Yusuf </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transesterification of jatropha methyl ester (JME) with the common polyol, trimethylolpropane (TMP) produced the TMP based ester which exhibits improved temperature properties. This paper discusses the physic-chemical properties of jatropha bio-lubricant base oil applicable for ISO VG32 and VG46 requirement. The catalyst employed for the JME was CaO synthesized in National Research Institute for Chemical Technology (NARICT) that gives 100% conversion. The molar ratio of JME to TMP was 3.5:1 and the catalyst (NaOCH3) loading were found to be 0.8% of the weight of the total reactants. The final fractionated jatropha bio-lubricant base was found to contain 11.95% monoesters, 43.89% diesters and 44.16% triesters (desired product). In addition, it was found that the bio-lubricant base oil produced is comparable to the ISO VG46 commercial standards for light and industrial gears applications and other plant based bio-lubricant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodegradability" title="biodegradability">biodegradability</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20ester" title=" methyl ester"> methyl ester</a>, <a href="https://publications.waset.org/abstracts/search?q=pour%20point" title=" pour point"> pour point</a>, <a href="https://publications.waset.org/abstracts/search?q=transesterification" title=" transesterification"> transesterification</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity%20index" title=" viscosity index"> viscosity index</a> </p> <a href="https://publications.waset.org/abstracts/19636/synthesis-and-physico-chemical-analysis-of-jatropha-curcas-seed-oil-for-iso-vg32-and-vg46-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19636.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">663</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">78</span> Objects Tracking in Catadioptric Images Using Spherical Snake</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khald%20Anisse">Khald Anisse</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Radgui"> Amina Radgui</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Rziza"> Mohammed Rziza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tracking objects on video sequences is a very challenging task in many works in computer vision applications. However, there is no article that treats this topic in catadioptric vision. This paper is an attempt that tries to describe a new approach of omnidirectional images processing based on inverse stereographic projection in the half-sphere. We used the spherical model proposed by Gayer and al. For object tracking, our work is based on snake method, with optimization using the Greedy algorithm, by adapting its different operators. The algorithm will respect the deformed geometries of omnidirectional images such as spherical neighborhood, spherical gradient and reformulation of optimization algorithm on the spherical domain. This tracking method that we call "spherical snake" permitted to know the change of the shape and the size of object in different replacements in the spherical image. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer%20vision" title="computer vision">computer vision</a>, <a href="https://publications.waset.org/abstracts/search?q=spherical%20snake" title=" spherical snake"> spherical snake</a>, <a href="https://publications.waset.org/abstracts/search?q=omnidirectional%20image" title=" omnidirectional image"> omnidirectional image</a>, <a href="https://publications.waset.org/abstracts/search?q=object%20tracking" title=" object tracking"> object tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=inverse%20stereographic%20projection" title=" inverse stereographic projection"> inverse stereographic projection</a> </p> <a href="https://publications.waset.org/abstracts/2285/objects-tracking-in-catadioptric-images-using-spherical-snake" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2285.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">402</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=Amina%20Merabet&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Amina%20Merabet&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Amina%20Merabet&page=4">4</a></li> <li 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