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Boujemaa</title> <meta name="description" content="Search results for: Safa Boujemaa"> <meta name="keywords" content="Safa Boujemaa"> <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="Safa Boujemaa"> <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> 46</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Safa Boujemaa</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> In Vitro Antimycoplasmal Activity of Peganum harmala on Mycoplasma hominis Tunisian Strains</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadine%20khadraoui">Nadine khadraoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Rym%20Essid"> Rym Essid</a>, <a href="https://publications.waset.org/abstracts/search?q=Olfa%20Tabbene"> Olfa Tabbene</a>, <a href="https://publications.waset.org/abstracts/search?q=Imen%20Chniba"> Imen Chniba</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Boujemaa"> Safa Boujemaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Selim%20Jallouli"> Selim Jallouli</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Fares"> Nadia Fares</a>, <a href="https://publications.waset.org/abstracts/search?q=Behija%20Mlik"> Behija Mlik</a>, <a href="https://publications.waset.org/abstracts/search?q=Boutheina%20Ben%20Abdelmoumen%20Mardassi"> Boutheina Ben Abdelmoumen Mardassi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and aim: Mycoplasma hominis is an opportunistic pathogen that can cause various gynecological infections such cervicitis, infertility, and, less frequently, extra-genital infections. Previous studies on the antimicrobial susceptibility of Mycoplasma hominis Tunisian strains have highlighted a significant resistance, even multi-resistance, to the most used antibiotic in the therapy of consequential infections. To address this concern, the present study aimed for the alternative of phytotherapy. Peganum harmala seed extract was tested as an antibacterial agent against multidrug-resistant M.hominis clinical strains. Material and Methods: Peganum harmala plant was collected from Ain Sebaa, Tabarka, North West region of Tunisia in April 2018, air-dried, grounded and extracted by different solvents.The crude methanolic extract was further partitioned with n-HEX, DCM, EtOAC and n-BuOl. Antibacterial activity was evaluated against M. hominis ATCC 23114 and 20 M. hominis clinical strains.The antimycoplasmal activity was tested by the microdilution method, and MIC values were determined. Phytochemical analysis and hemolytic activity on human erythrocytes were also performed. The active fraction was then subjected to purification, and the chemical identification of the active compound was investigated. Results: Among the tested fractions, the n-BuOH extract was the most active fraction since it exhibited an inhibitory effect against M. hominis ATCC 23114 and 80% of the tested clinical strains with MIC between 125 and 1000 µg/ml. The phytochemical analysis of the n-BuOH revealed its metabolic abundance in polyphenols, flavonoids and condensed tannin with levels of 257.37 mg AGE/g, 172.27 mg EC/g and 58.27 mg EC/g, respectively. In addition, P. harmala n-BuOH extract exhibited potent bactericidal activity against all M. hominis isolates with CMB values ranging between 125 and 4000 µg/ml. Further, the active fraction exhibited weak cytotoxicity effect at active concentrations when tested on human erythrocytes. The active compound was identified by gas chromatography–mass spectrometry as an indole alkaloid harmaline. Conclusion: In summary, Peganum harmala extract demonstrated an interesting anti-mycoplasmal activity against M. hominis Tunisian strains. Therefore, it could be considered as a potential candidate for the treatment of consequential infections. However, further studies are necessary to evaluate its mechanism of action in mycoplasmas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mycoplasma%20hominis" title="mycoplasma hominis">mycoplasma hominis</a>, <a href="https://publications.waset.org/abstracts/search?q=peganum%20harmala" title=" peganum harmala"> peganum harmala</a>, <a href="https://publications.waset.org/abstracts/search?q=antibioresistance" title=" antibioresistance"> antibioresistance</a>, <a href="https://publications.waset.org/abstracts/search?q=phytotherapy" title=" phytotherapy"> phytotherapy</a>, <a href="https://publications.waset.org/abstracts/search?q=phytochemical%20analysis" title=" phytochemical analysis"> phytochemical analysis</a> </p> <a href="https://publications.waset.org/abstracts/167419/in-vitro-antimycoplasmal-activity-of-peganum-harmala-on-mycoplasma-hominis-tunisian-strains" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167419.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">117</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">45</span> Unraveling the Evolution of Mycoplasma Hominis Through Its Genome Sequence</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Boutheina%20Ben%20Abdelmoumen%20Mardassi">Boutheina Ben Abdelmoumen Mardassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Salim%20Chibani"> Salim Chibani</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Boujemaa"> Safa Boujemaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Amaury%20Vaysse"> Amaury Vaysse</a>, <a href="https://publications.waset.org/abstracts/search?q=Julien%20Guglielmini"> Julien Guglielmini</a>, <a href="https://publications.waset.org/abstracts/search?q=Elhem%20Yacoub"> Elhem Yacoub</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and aim: Mycoplasma hominis (MH) is a pathogenic bacterium belonging to the Mollicutes class. It causes a wide range of gynecological infections and infertility among adults. Recently, we have explored for the first time the phylodistribution of Tunisian M. hominis clinical strains using an expanded MLST. We have demonstrated their distinction into two pure lineages, which each corresponding to a specific pathotype: genital infections and infertility. The aim of this project is to gain further insight into the evolutionary dynamics and the specific genetic factors that distinguish MH pathotypes Methods: Whole genome sequencing of Mycoplasma hominis clinical strains was performed using illumina Miseq. Denovo assembly was performed using a publicly available in-house pipeline. We used prokka to annotate the genomes, panaroo to generate the gene presence matrix and Jolytree to establish the phylogenetic tree. We used treeWAS to identify genetic loci associated with the pathothype of interest from the presence matrix and phylogenetic tree. Results: Our results revealed a clear categorization of the 62 MH clinical strains into two distinct genetic lineages, with each corresponding to a specific pathotype.; gynecological infections and infertility[AV1] . Genome annotation showed that GC content is ranging between 26 and 27%, which is a known characteristic of Mycoplasma genome. Housekeeping genes belonging to the core genome are highly conserved among our strains. TreeWas identified 4 virulence genes associated with the pathotype gynecological infection. encoding for asparagine--tRNA ligase, restriction endonuclease subunit S, Eco47II restriction endonuclease, and transcription regulator XRE (involved in tolerance to oxidative stress). Five genes have been identified that have a statistical association with infertility, tow lipoprotein, one hypothetical protein, a glycosyl transferase involved in capsule synthesis, and pyruvate kinase involved in biofilm formation. All strains harbored an efflux pomp that belongs to the family of multidrug resistance ABC transporter, which confers resistance to a wide range of antibiotics. Indeed many adhesion factors and lipoproteins (p120, p120', p60, p80, Vaa) have been checked and confirmed in our strains with a relatively 99 % to 96 % conserved domain and hypervariable domain that represent 1 to 4 % of the reference sequence extracted from gene bank. Conclusion: In summary, this study led to the identification of specific genetic loci associated with distinct pathotypes in M hominis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mycoplasma%20hominis" title="mycoplasma hominis">mycoplasma hominis</a>, <a href="https://publications.waset.org/abstracts/search?q=infertility" title=" infertility"> infertility</a>, <a href="https://publications.waset.org/abstracts/search?q=gynecological%20infections" title=" gynecological infections"> gynecological infections</a>, <a href="https://publications.waset.org/abstracts/search?q=virulence%20genes" title=" virulence genes"> virulence genes</a>, <a href="https://publications.waset.org/abstracts/search?q=antibiotic%20resistance" title=" antibiotic resistance"> antibiotic resistance</a> </p> <a href="https://publications.waset.org/abstracts/167070/unraveling-the-evolution-of-mycoplasma-hominis-through-its-genome-sequence" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167070.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">96</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Hot Air Flow Annealing of MAPbI₃ Perovskite: Structural and Optical Properties </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mouad%20Ouafi">Mouad Ouafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Lahoucine%20Atourki"> Lahoucine Atourki</a>, <a href="https://publications.waset.org/abstracts/search?q=Larbi%20Laanab"> Larbi Laanab</a>, <a href="https://publications.waset.org/abstracts/search?q=Erika%20Vega"> Erika Vega</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Mollar"> Miguel Mollar</a>, <a href="https://publications.waset.org/abstracts/search?q=Bernabe%20Marib"> Bernabe Marib</a>, <a href="https://publications.waset.org/abstracts/search?q=Boujemaa%20Jaber"> Boujemaa Jaber</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite the astonishing emergence of the methylammonium lead triiodide perovskite as a promising light harvester for solar cells, their physical properties in solution-processed MAPbI₃ are still crucial and need to be improved. The objective of this work is to investigate the hot airflow effect during the growth of MAPbI₃ films using the spin-coating process on their structural, optical and morphological proprieties. The experimental results show that many physical proprieties of the perovskite strongly depend on the air flow temperature and the optimization which has a beneficial effect on the perovskite quality. In fact, a clear improvement of the crystallinity and the crystallite size of MAPbI₃ perovskite is demonstrated by the XRD analyses, when the airflow temperature is increased up to 100°C. Alternatively, as far as the surface morphology is concerned, SEM micrographs show that significant homogenous nucleation, uniform surface distribution and pin holes free with highest surface coverture of 98% are achieved when the airflow temperature reaches 100°C. At this temperature, the improvement is also observed when considering the optical properties of the films. By contrast, a remarkable degradation of the MAPbI₃ perovskites associated to the PbI₂ phase formation is noticed, when the hot airflow temperature is higher than 100°C, especially 300°C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot%20air%20flow" title="hot air flow">hot air flow</a>, <a href="https://publications.waset.org/abstracts/search?q=crystallinity" title=" crystallinity"> crystallinity</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20coverage" title=" surface coverage"> surface coverage</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20morphology" title=" perovskite morphology"> perovskite morphology</a> </p> <a href="https://publications.waset.org/abstracts/102435/hot-air-flow-annealing-of-mapbi3-perovskite-structural-and-optical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102435.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">163</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Ant Colony Optimization Control for Multilevel STATCOM</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20T%C3%A9djini">H. Tédjini</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Meslem"> Y. Meslem</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Guesbaoui"> B. Guesbaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Safa"> A. Safa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flexible AC Transmission Systems (FACTS) are potentially becoming more flexible and more economical local controllers in the power system; and because of the high MVA ratings, it would be expensive to provide independent, equal, regulated DC voltage sources to power the multilevel converters which are presently proposed for STATCOMs. DC voltage sources can be derived from the DC link capacitances which are charged by the rectified ac power. In this paper a new stronger control combined of nonlinear control based Lyapunov’s theorem and Ant Colony Algorithm (ACA) to maintain stability of multilevel STATCOM and the utility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Static%20Compensator%20%28STATCOM%29" title="Static Compensator (STATCOM)">Static Compensator (STATCOM)</a>, <a href="https://publications.waset.org/abstracts/search?q=ant%20colony%20optimization%20%28ACO%29" title=" ant colony optimization (ACO)"> ant colony optimization (ACO)</a>, <a href="https://publications.waset.org/abstracts/search?q=lyapunov%20control%20theory" title=" lyapunov control theory"> lyapunov control theory</a>, <a href="https://publications.waset.org/abstracts/search?q=Decoupled%20power%20control" title=" Decoupled power control"> Decoupled power control</a>, <a href="https://publications.waset.org/abstracts/search?q=neutral%20point%20clamped%20%28NPC%29" title=" neutral point clamped (NPC)"> neutral point clamped (NPC)</a> </p> <a href="https://publications.waset.org/abstracts/19254/ant-colony-optimization-control-for-multilevel-statcom" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19254.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">556</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> A Comparative Study of GTC and PSP Algorithms for Mining Sequential Patterns Embedded in Database with Time Constraints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Adi">Safa Adi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper will consider the problem of sequential mining patterns embedded in a database by handling the time constraints as defined in the GSP algorithm (level wise algorithms). We will compare two previous approaches GTC and PSP, that resumes the general principles of GSP. Furthermore this paper will discuss PG-hybrid algorithm, that using PSP and GTC. The results show that PSP and GTC are more efficient than GSP. On the other hand, the GTC algorithm performs better than PSP. The PG-hybrid algorithm use PSP algorithm for the two first passes on the database, and GTC approach for the following scans. Experiments show that the hybrid approach is very efficient for short, frequent sequences. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=database" title="database">database</a>, <a href="https://publications.waset.org/abstracts/search?q=GTC%20algorithm" title=" GTC algorithm"> GTC algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=PSP%20algorithm" title=" PSP algorithm"> PSP algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=sequential%20patterns" title=" sequential patterns"> sequential patterns</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20constraints" title=" time constraints"> time constraints</a> </p> <a href="https://publications.waset.org/abstracts/97812/a-comparative-study-of-gtc-and-psp-algorithms-for-mining-sequential-patterns-embedded-in-database-with-time-constraints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97812.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">389</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Six Steps of Entrepreneurial Finance and Development, from Idea to Corporation Case of Kuwait</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andri%20Ottesen">Andri Ottesen</a>, <a href="https://publications.waset.org/abstracts/search?q=Sam%20Toglaw"> Sam Toglaw</a>, <a href="https://publications.waset.org/abstracts/search?q=Mirna%20Safa"> Mirna Safa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Entrepreneurial companies on their developing path from an idea to a corporation go through a similar six-step process. Each of these six development steps is supported by a distinctive financing path. This paper explores the Kuwait model for Entrepreneurial Finance and Development through in-depth interviews with ten successful Kuwaiti entrepreneurs. This paper offers insight into the development and financing of entrepreneurial companies in this oil-rich, predominantly Islamic country that are in many ways different from the steps. Western entrepreneurial companies go through. This model could be used to understand the commonalities and the difference between entrepreneurial development and financing and could be used to bridge the gap. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=entrepreneurial-financing" title="entrepreneurial-financing">entrepreneurial-financing</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurial-developing" title=" entrepreneurial-developing"> entrepreneurial-developing</a>, <a href="https://publications.waset.org/abstracts/search?q=Kuwait" title=" Kuwait"> Kuwait</a>, <a href="https://publications.waset.org/abstracts/search?q=Vancouver%20school" title=" Vancouver school"> Vancouver school</a> </p> <a href="https://publications.waset.org/abstracts/137449/six-steps-of-entrepreneurial-finance-and-development-from-idea-to-corporation-case-of-kuwait" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137449.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">215</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> BAN Logic Proof of E-passport Authentication Protocol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Saoudi">Safa Saoudi</a>, <a href="https://publications.waset.org/abstracts/search?q=Souheib%20Yousfi"> Souheib Yousfi</a>, <a href="https://publications.waset.org/abstracts/search?q=Riadh%20Robbana"> Riadh Robbana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> E-passport is a relatively new electronic document which maintains the passport features and provides better security. It deploys new technologies such as biometrics and Radio Frequency identification (RFID). The international civil aviation organization (ICAO) and the European union define mechanisms and protocols to provide security but their solutions present many threats. In this paper, a new mechanism is presented to strengthen e-passport security and authentication process. We propose a new protocol based on Elliptic curve, identity based encryption and shared secret between entities. Authentication in our contribution is formally proved with BAN Logic verification language. This proposal aims to provide a secure data storage and authentication. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=e-passport" title="e-passport">e-passport</a>, <a href="https://publications.waset.org/abstracts/search?q=elliptic%20curve%20cryptography" title=" elliptic curve cryptography"> elliptic curve cryptography</a>, <a href="https://publications.waset.org/abstracts/search?q=identity%20based%20encryption" title=" identity based encryption"> identity based encryption</a>, <a href="https://publications.waset.org/abstracts/search?q=shared%20secret" title=" shared secret"> shared secret</a>, <a href="https://publications.waset.org/abstracts/search?q=BAN%20Logic" title=" BAN Logic"> BAN Logic</a> </p> <a href="https://publications.waset.org/abstracts/25381/ban-logic-proof-of-e-passport-authentication-protocol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25381.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">435</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> A Stochastic Diffusion Process Based on the Two-Parameters Weibull Density Function</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meriem%20Bahij">Meriem Bahij</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Nafidi"> Ahmed Nafidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Boujem%C3%A2a%20Achchab"> Boujemâa Achchab</a>, <a href="https://publications.waset.org/abstracts/search?q=S%C3%ADlvio%20M.%20A.%20Gama"> Sílvio M. A. Gama</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20A.%20O.%20Matos"> José A. O. Matos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stochastic modeling concerns the use of probability to model real-world situations in which uncertainty is present. Therefore, the purpose of stochastic modeling is to estimate the probability of outcomes within a forecast, i.e. to be able to predict what conditions or decisions might happen under different situations. In the present study, we present a model of a stochastic diffusion process based on the bi-Weibull distribution function (its trend is proportional to the bi-Weibull probability density function). In general, the Weibull distribution has the ability to assume the characteristics of many different types of distributions. This has made it very popular among engineers and quality practitioners, who have considered it the most commonly used distribution for studying problems such as modeling reliability data, accelerated life testing, and maintainability modeling and analysis. In this work, we start by obtaining the probabilistic characteristics of this model, as the explicit expression of the process, its trends, and its distribution by transforming the diffusion process in a Wiener process as shown in the Ricciaardi theorem. Then, we develop the statistical inference of this model using the maximum likelihood methodology. Finally, we analyse with simulated data the computational problems associated with the parameters, an issue of great importance in its application to real data with the use of the convergence analysis methods. Overall, the use of a stochastic model reflects only a pragmatic decision on the part of the modeler. According to the data that is available and the universe of models known to the modeler, this model represents the best currently available description of the phenomenon under consideration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diffusion%20process" title="diffusion process">diffusion process</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20sampling" title=" discrete sampling"> discrete sampling</a>, <a href="https://publications.waset.org/abstracts/search?q=likelihood%20estimation%20method" title=" likelihood estimation method"> likelihood estimation method</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=stochastic%20diffusion%20process" title=" stochastic diffusion process"> stochastic diffusion process</a>, <a href="https://publications.waset.org/abstracts/search?q=trends%20functions" title=" trends functions"> trends functions</a>, <a href="https://publications.waset.org/abstracts/search?q=bi-parameters%20weibull%20density%20function" title=" bi-parameters weibull density function"> bi-parameters weibull density function</a> </p> <a href="https://publications.waset.org/abstracts/52569/a-stochastic-diffusion-process-based-on-the-two-parameters-weibull-density-function" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52569.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">307</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> The Impact of Diversification Strategy on Leverage and Accrual-Based Earnings Management</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Lazzem">Safa Lazzem</a>, <a href="https://publications.waset.org/abstracts/search?q=Faouzi%20Jilani"> Faouzi Jilani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this research is to investigate the impact of diversification strategy on the nature of the relationship between leverage and accrual-based earnings management through panel-estimation techniques based on a sample of 162 nonfinancial French firms indexed in CAC All-Tradable during the period from 2006 to 2012. The empirical results show that leverage increases encourage managers to manipulate earnings management. Our findings prove that the diversification strategy provides the needed context for this accounting practice to be possible in highly diversified firms. In addition, the results indicate that diversification moderates the relationship between leverage and accrual-based earnings management by changing the nature and the sign of this relationship. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diversification" title="diversification">diversification</a>, <a href="https://publications.waset.org/abstracts/search?q=earnings%20management" title=" earnings management"> earnings management</a>, <a href="https://publications.waset.org/abstracts/search?q=leverage" title=" leverage"> leverage</a>, <a href="https://publications.waset.org/abstracts/search?q=panel-estimation%20techniques" title=" panel-estimation techniques"> panel-estimation techniques</a> </p> <a href="https://publications.waset.org/abstracts/102339/the-impact-of-diversification-strategy-on-leverage-and-accrual-based-earnings-management" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102339.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">150</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Ethical Finance and Islamic Finance: Particularities, Possible Convergence and Potential Development</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Ougoujil">Safa Ougoujil</a>, <a href="https://publications.waset.org/abstracts/search?q=Sidi%20Mohamed%20Rigar"> Sidi Mohamed Rigar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Economics is not an exact science. It cannot be from the moment it is a social science that concerns society organization, a human science that depends on the behavior of the men and women who make a part of this society. Therefore, it cannot ignore morality, the instinctive sense of good and evil, the natural order which place us between certain values, and which religion often sheds light on. In terms of finance, the reference to ethics is becoming more popular than ever. This is naturally due to the growing financial crises. Finance is less and less ethical, but some financial practices have continued to do so. This is the case of ethical finance and Islamic finance. After attempting to define the concepts of ethical finance and Islamic finance, in a period when financial innovation seeks to encourage differentiation in order to create more profit margins, this article attempts to expose the particularities, the convergences and the potentialities of development of these two sensibilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=convergences" title="convergences">convergences</a>, <a href="https://publications.waset.org/abstracts/search?q=ethical%20finance" title=" ethical finance"> ethical finance</a>, <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=potential%20development" title=" potential development"> potential development</a> </p> <a href="https://publications.waset.org/abstracts/81381/ethical-finance-and-islamic-finance-particularities-possible-convergence-and-potential-development" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81381.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">194</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Classification of Construction Projects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Safa">M. Safa</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Sabet"> A. Sabet</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20MacGillivray"> S. MacGillivray</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Davidson"> M. Davidson</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Kaczmarczyk"> K. Kaczmarczyk</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20T.%20Haas"> C. T. Haas</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20E.%20Gibson"> G. E. Gibson</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Rayside"> D. Rayside </a> </p> <p class="card-text"><strong>Abstract:</strong></p> To address construction project requirements and specifications, scholars and practitioners need to establish a taxonomy according to a scheme that best fits their need. While existing characterization methods are continuously being improved, new ones are devised to cover project properties which have not been previously addressed. One such method, the Project Definition Rating Index (PDRI), has received limited consideration strictly as a classification scheme. Developed by the Construction Industry Institute (CII) in 1996, the PDRI has been refined over the last two decades as a method for evaluating a project's scope definition completeness during front-end planning (FEP). The main contribution of this study is a review of practical project classification methods, and a discussion of how PDRI can be used to classify projects based on their readiness in the FEP phase. The proposed model has been applied to 59 construction projects in Ontario, and the results are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=project%20classification" title="project classification">project classification</a>, <a href="https://publications.waset.org/abstracts/search?q=project%20definition%20rating%20index%20%28PDRI%29" title=" project definition rating index (PDRI)"> project definition rating index (PDRI)</a>, <a href="https://publications.waset.org/abstracts/search?q=risk" title=" risk"> risk</a>, <a href="https://publications.waset.org/abstracts/search?q=project%20goals%20alignment" title=" project goals alignment"> project goals alignment</a> </p> <a href="https://publications.waset.org/abstracts/22973/classification-of-construction-projects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22973.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">677</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Evaluation of Fluoride Contents of Kirkuk City's Drinking Water and Its Source: Lesser Zab River and Its Effect on Human Health</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abbas%20R.%20Ali">Abbas R. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20H.%20Abdulrahman"> Safa H. Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, forty samples had been collected from water of Lesser Zab River and drinking water to determine fluoride concentration and show the impact of fluoride on general health of society of Kirkuk city. Estimation of fluoride concentration and determination of its proportion in water samples were performed attentively using a fluoride ion selective electrode. The fluoride concentrations in the Lesser Zab River samples were between 0.0265 ppm and 0.0863 ppm with an average of 0.0451 ppm, whereas the average fluoride concentration in drinking water samples was 0.102 ppm and ranged from 0.010 to 0.289 ppm. A comparison between results obtained with World Health Organization (WHO) show a low concentration of fluoride in the samples of the study. Thus, for health concerns we should increase the concentration of this ion in water of Kirkuk city at least to about (1.0 ppm) and this will take place after fluorination process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluoride%20concentration" title="fluoride concentration">fluoride concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=lesser%20zab%20river" title=" lesser zab river"> lesser zab river</a>, <a href="https://publications.waset.org/abstracts/search?q=drinking%20water" title=" drinking water"> drinking water</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20society" title=" health society"> health society</a>, <a href="https://publications.waset.org/abstracts/search?q=Kirkuk%20city" title=" Kirkuk city"> Kirkuk city</a> </p> <a href="https://publications.waset.org/abstracts/51317/evaluation-of-fluoride-contents-of-kirkuk-citys-drinking-water-and-its-source-lesser-zab-river-and-its-effect-on-human-health" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51317.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">371</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Application of Drones in Agriculture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Taherlouei%20Safa">Reza Taherlouei Safa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Aboonajmi"> Mohammad Aboonajmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agriculture plays an essential role in providing food for the world's population. It also offers numerous benefits to countries, including non-food products, transportation, and environmental balance. Precision agriculture, which employs advanced tools to monitor variability and manage inputs, can help achieve these benefits. The increasing demand for food security puts pressure on decision-makers to ensure sufficient food production worldwide. To support sustainable agriculture, unmanned aerial vehicles (UAVs) can be utilized to manage farms and increase yields. This paper aims to provide an understanding of UAV usage and its applications in agriculture. The objective is to review the various applications of UAVs in agriculture. Based on a comprehensive review of existing research, it was found that different sensors provide varying analyses for agriculture applications. Therefore, the purpose of the project must be determined before using UAV technology for better data quality and analysis. In conclusion, identifying a suitable sensor and UAV is crucial to gather accurate data and precise analysis when using UAVs in agriculture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drone" title="drone">drone</a>, <a href="https://publications.waset.org/abstracts/search?q=precision%20agriculture" title=" precision agriculture"> precision agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=farmer%20income" title=" farmer income"> farmer income</a>, <a href="https://publications.waset.org/abstracts/search?q=UAV" title=" UAV"> UAV</a> </p> <a href="https://publications.waset.org/abstracts/170574/application-of-drones-in-agriculture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170574.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">81</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Genetics of Birth and Weaning Weight of Holstein, Friesians in Sudan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20A.%20Mohammed%20Ali">Safa A. Mohammed Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Ammar%20S.%20Ahamed"> Ammar S. Ahamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Khair%20Abdalla"> Mohammed Khair Abdalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objectives of this study were to estimate the means and genetic parameters of birth and weaning weight of calves of pure Holstein-Friesian cows raised in Sudan. The traits studied were:*Weight at birth *Weight at weaning. The study also included some of the important factors that affected these traits. The data were analyzed using Harvey’s Least Squares and Maximum Likelihood programme. The results obtained showed that the overall mean weight at birth of the calves under study was 34.36±0.94kg. Male calves were found to be heavier than females; the difference between the sexes was highly significant (P<0.001). The mean weight at birth of male calves was 34.27±1.17 kg while that of females was 32.51±1.14kg. The effect of sex of calves, sire and parity of dam were highly significant (P<0.001). The overall mean of weight at weaning was 67.10 ± 5.05 kg, weight at weaning was significantly (p<0.001) effected by sex of calves, sire, year and season of birth have highly significant (P<0.001) effect on either trait. Also estimates heritabilities of birth weight was (0.033±0.015) lower than heritabilities of weaning weight (0.224±0.039), and genetic correlation was 0.563, the phenotypic correlation 0.281, and the environmental correlation 0.268. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=birth" title="birth">birth</a>, <a href="https://publications.waset.org/abstracts/search?q=weaning" title=" weaning"> weaning</a>, <a href="https://publications.waset.org/abstracts/search?q=weight" title=" weight"> weight</a>, <a href="https://publications.waset.org/abstracts/search?q=friesian" title=" friesian"> friesian</a> </p> <a href="https://publications.waset.org/abstracts/28077/genetics-of-birth-and-weaning-weight-of-holstein-friesians-in-sudan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28077.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">664</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Proportion and Factors Associated with Presumptive Tuberculosis among Suspected Pediatric Tuberculosis Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naima%20Nur">Naima Nur</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Islam"> Safa Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeema%20Islam"> Saeema Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Faridul%20Alam"> Md. Faridul Alam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The worldwide increase in pediatric presumptive tuberculosis (TB) is the most life-threatening challenge in effectively controlling TB. The objective of this study was to determine the proportion of presumptive TB and the factors associated with it. Methods: A cross-sectional study was conducted between March and November 2013 at ICDDR-Bangladesh. Two hundred twelve pulmonary and extra-pulmonary specimens were collected from 84 suspected pediatric patients diagnosed with TB based on their clinical symptoms/radiological findings. Presumptive TB and confirmed TB were considered presumptive TB and non-presumptive TB and were isolated by smear-microscopy, culture, and GeneXpert. Logistic regression was used to analyze associations between outcome and predictor variables. Results: The proportion of presumptive TB was 85.7%, and 14.3% of non-presumptive TB. In presumptive TB, vaccine scars, family TB history, and school-going children were 16.6%, 33.3%, and 56.9%, respectively. In contrast, vaccine scars and family TB history were 8.3%, and school-going children were 58.3% in non-presumptive TB. Significant factors did not appear in the logistic regression analysis. Conclusion: Despite the high proportion of presumptive TB, there was no statistically significant between presumptive TB and non-presumptive TB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=presumptive%20tuberculosis" title="presumptive tuberculosis">presumptive tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=confirmed%20tuberculosis" title=" confirmed tuberculosis"> confirmed tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=patient%27s%20characteristics" title=" patient's characteristics"> patient's characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a> </p> <a href="https://publications.waset.org/abstracts/183139/proportion-and-factors-associated-with-presumptive-tuberculosis-among-suspected-pediatric-tuberculosis-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183139.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">49</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> InP/ZnS Core-Shell and InP/ZnS/ZnS Core-Multishell Quantum Dots for Improved luminescence Efficiency</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Imen%20Harabi">Imen Harabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanae%20Toura"> Hanae Toura</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Jemai"> Safa Jemai</a>, <a href="https://publications.waset.org/abstracts/search?q=Bernabe%20Mari%20Soucase"> Bernabe Mari Soucase</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A promising alternative to traditional Quantum Dots QD materials, which contain toxic heavy elements such as lead and cadmium, sheds light on indium phosphide quantum dots (InP QDs) Owing to improve the quantum yields of photoluminescence and other properties. InP, InP/ZnS core/shell and InP/ZnS/ZnS core/shell/shell Quantum Dots (QDs) were synthetized by the hot injection method. The optical and structural properties of the core InP QDs, InP/ZnS QDs, and InP/ZnS/ZnS QDs have being considered by several techniques such as X-ray diffraction, transmission electron microscopy, optical spectroscopy, and photoluminescence. The average diameter of InP, InP/ZnS, and InP/ZnS/ZnS Quantum Dots (QDs) was varying between 10 nm, 5.4 nm, and 4.10 nm. This experience revealed that the surface morphology of the Quantum Dots has a more regular spherical form with color variation of the QDs in solution. The emission peak of colloidal InP Quantum Dots was around 530 nm, while in InP/ZnS, the emission peak is displayed and located at 598 nm. whilst for InP/ZnS/ZnS is placed at 610 nm. Furthermore, an enhanced PL emission due to a passivation effect in the ZnS-covered InP QDs was obtained. Add the XRD information FWHM of the principal peak of InP QDs was 63 nm, while for InP/ZnS was 41 nm and InP/ZnS/ZnS was 33 nm. The effect of the Zinc stearate precursor concentration on the optical, structural, surface chemical of InP and InP/ZnS and InP/ZnS/ZnS QDs will be discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indium%20phosphide" title="indium phosphide">indium phosphide</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20dot" title=" quantum dot"> quantum dot</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticle" title=" nanoparticle"> nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=core-shell" title=" core-shell"> core-shell</a>, <a href="https://publications.waset.org/abstracts/search?q=multishell" title=" multishell"> multishell</a>, <a href="https://publications.waset.org/abstracts/search?q=luminescence" title=" luminescence"> luminescence</a> </p> <a href="https://publications.waset.org/abstracts/145518/inpzns-core-shell-and-inpznszns-core-multishell-quantum-dots-for-improved-luminescence-efficiency" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145518.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">165</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Investigation of a Hybrid Process: Multipoint Incremental Forming</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Boudhaouia">Safa Boudhaouia</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Amen%20Gahbiche"> Mohamed Amen Gahbiche</a>, <a href="https://publications.waset.org/abstracts/search?q=Eliane%20Giraud"> Eliane Giraud</a>, <a href="https://publications.waset.org/abstracts/search?q=Wacef%20Ben%20Salem"> Wacef Ben Salem</a>, <a href="https://publications.waset.org/abstracts/search?q=Philippe%20Dal%20Santo"> Philippe Dal Santo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Multi-point forming (MPF) and asymmetric incremental forming (ISF) are two flexible processes for sheet metal manufacturing. To take advantages of these two techniques, a hybrid process has been developed: The Multipoint Incremental Forming (MPIF). This process accumulates at once the advantages of each of these last mentioned forming techniques, which makes it a very interesting and particularly an efficient process for single, small, and medium series production. In this paper, an experimental and a numerical investigation of this technique are presented. To highlight the flexibility of this process and its capacity to manufacture standard and complex shapes, several pieces were produced by using MPIF. The forming experiments are performed on a 3-axis CNC machine. Moreover, a numerical model of the MPIF process has been implemented in ABAQUS and the analysis showed a good agreement with experimental results in terms of deformed shape. Furthermore, the use of an elastomeric interpolator allows avoiding classical local defaults like dimples, which are generally caused by the asymmetric contact and also improves the distribution of residual strain. Future works will apply this approach to other alloys used in aeronautic or automotive applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=incremental%20forming" title="incremental forming">incremental forming</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=MPIF" title=" MPIF"> MPIF</a>, <a href="https://publications.waset.org/abstracts/search?q=multipoint%20forming" title=" multipoint forming"> multipoint forming</a> </p> <a href="https://publications.waset.org/abstracts/51894/investigation-of-a-hybrid-process-multipoint-incremental-forming" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51894.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">356</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Improvement of Buckling Behavior of Cold Formed Steel Uprights with Open Cross Section Used in Storage Rack Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasar%20Pala">Yasar Pala</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Senaysoy"> Safa Senaysoy</a>, <a href="https://publications.waset.org/abstracts/search?q=Emre%20Calis"> Emre Calis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, structural behavior and improvement of buckling behavior of cold formed steel uprights with open cross-section used storage rack system are studied. As a first step, in the case of a stiffener having an inclined part on the flange, experimental and nonlinear finite element analysis are carried out for three different upright lengths. In the uprights with long length, global buckling is observed while distortional buckling and local buckling are observed in the uprights with medium length and those with short length, respectively. After this point, the study is divided into two groups. One of these groups is the case where the stiffener on the flange is folded at 90°. For this case, four different distances of the stiffener from the web are taken into account. In the other group, the case where different depth of stiffener on the web is considered. Combining experimental and finite element results, the cross-section giving the ultimate critical buckling load is selected. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steel" title="steel">steel</a>, <a href="https://publications.waset.org/abstracts/search?q=upright" title=" upright"> upright</a>, <a href="https://publications.waset.org/abstracts/search?q=buckling" title=" buckling"> buckling</a>, <a href="https://publications.waset.org/abstracts/search?q=modes" title=" modes"> modes</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20finite%20element%20analysis" title=" nonlinear finite element analysis"> nonlinear finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/64991/improvement-of-buckling-behavior-of-cold-formed-steel-uprights-with-open-cross-section-used-in-storage-rack-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64991.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">260</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Molecular and Genetic Characterization of Diacylglycerol Acyltransferase1 Gene in Sudanese Dairy Cattle Kenana and Butana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Abusara%20Mohammed%20Ali">Safa Abusara Mohammed Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Khair%20Abdallah"> Mohammed Khair Abdallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Gurdon%20A.%20Brockmann"> Gurdon A. Brockmann</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Reissmann"> M. Reissmann</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study was the characterization of DGAT1 variants in Sudanese dairy cattle breeds. In this study, we examined 94 Kenana and 91 Butana dairy cattle from two regions of Sudan. We genotyped the DGAT1 sequence variant AJ318490.1:g.10433/10434 AA>GC that leads to the Lysine – Alanine substitution at position 232 (K232A) in the protein and the VNTR polymorphism in the promoter region. Genotyping was performed by allele specific PCR and PCR fragment lengths determination, respectively. In both breeds, the DGAT1 Lysine variant (232K) that is associated with high fat and protein content as well as high fat yield in other breeds is the high frequent allele. The frequencies of the 232K allele were 96.3% and 84.6% in Kenana and Butana breeds, respectively. At the DGAT1 promoter VNTR locus, four alleles containing four to seven repeats of the 18 bp motif were found in both breeds. The highest frequent allele was the VNTR allele 3 containing five repeats with 60.4 % and 57.5 % in Kenana and Butana breeds, respectively. In conclusion, the two examined Sudanese dairy cattle breeds do not differ in allele frequencies at the DGAT1 locus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cattle" title="dairy cattle">dairy cattle</a>, <a href="https://publications.waset.org/abstracts/search?q=DGAT1" title=" DGAT1"> DGAT1</a>, <a href="https://publications.waset.org/abstracts/search?q=Kenana" title=" Kenana"> Kenana</a>, <a href="https://publications.waset.org/abstracts/search?q=Butana." title=" Butana."> Butana.</a> </p> <a href="https://publications.waset.org/abstracts/158874/molecular-and-genetic-characterization-of-diacylglycerol-acyltransferase1-gene-in-sudanese-dairy-cattle-kenana-and-butana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158874.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">121</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Self-Tuning-Filter and Fuzzy Logic Control for Shunt Active Power Filter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kaddari%20Faiza">Kaddari Faiza</a>, <a href="https://publications.waset.org/abstracts/search?q=Mazari%20Benyounes"> Mazari Benyounes</a>, <a href="https://publications.waset.org/abstracts/search?q=Mihoub%20Youcef"> Mihoub Youcef</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Ahmed"> Safa Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Active filtering of electric power has now become a mature technology for reactive power and harmonic compensation caused by the proliferation of power electronics devices used for industrial, commercial and residential purposes. The aim of this study is to enhance the power quality by improving the performances of shunt active power filter in harmonic mitigation to obtain sinusoidal source currents with very weak ripples. A power circuit configuration and control scheme for shunt active power filter are described with an improved method for harmonics compensation using self-tuning-filter for harmonics identification and fuzzy logic control to generate reference current. Simulation results (using MATLAB/SIMULINK) illustrates the compensation characteristics of the proposed control strategy. Analysis of these results proves the feasibility and effectiveness of this method to improve the power quality and also show the performances of fuzzy logic control which provides flexibility, high precision and fast response. The total harmonic distortion (THD %) for the simulations found to be within the recommended imposed IEEE 519-1992 harmonic standard. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Active%20Powers%20Filter%20%28APF%29" title="Active Powers Filter (APF)">Active Powers Filter (APF)</a>, <a href="https://publications.waset.org/abstracts/search?q=Self-Tuning-Filter%20%28STF%29" title=" Self-Tuning-Filter (STF)"> Self-Tuning-Filter (STF)</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20logic%20control" title=" fuzzy logic control"> fuzzy logic control</a>, <a href="https://publications.waset.org/abstracts/search?q=hysteresis-band%20control" title=" hysteresis-band control "> hysteresis-band control </a> </p> <a href="https://publications.waset.org/abstracts/21684/self-tuning-filter-and-fuzzy-logic-control-for-shunt-active-power-filter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21684.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">737</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Economic Impact of a Distribution Company under Power System Restructuring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%E2%80%99%20Abdelkarim%20Hammad">Safa’ Abdelkarim Hammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electrical power system is one of the main parts of the nation's infrastructure, and the availability and cost of electricity are critical factors in industrial competitiveness and strategy. Restructuring of the electricity supply industries is a very complex exercise based on national energy strategies and policies, macroeconomic developments, and national conditions, and its application varies from country to country. Electricity regulation of natural monopolies is a challenging task. Regulators face the problem of providing appropriate incentives for improvement of efficiency. Incentive regulation is often considered as an efficient regulatory tool to handle the problem, and it is widely applied in several countries. However, the exact regulation methodologies differ from one country to another. Network quantitative reliability evaluation is an essential factor with regard to the quality of supply. The main factors used to judge the reliability of supply is measured by the number and duration of interruptions experienced by customers. Several indicators are used to evaluate reliability in distribution networks. This paper addresses the impact of incentive regulation and performance benchmarking in the field of electricity distribution in Jordan. The theory of efficiency measurement and the most common models; NCSQS and DEA models are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=incentive%20regulations" title="incentive regulations">incentive regulations</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability" title=" reliability"> reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=restructuring" title=" restructuring"> restructuring</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarrif" title=" Tarrif"> Tarrif</a> </p> <a href="https://publications.waset.org/abstracts/118612/economic-impact-of-a-distribution-company-under-power-system-restructuring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/118612.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">122</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Estimation of Serum Levels of Calcium and Inorganic Phosphorus in Breast Cancer Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Safdar">Safa Safdar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Breast cancer is a type of cancer which is developed by the formation of a tumor on the breast. This tumor invades and causes different electrolyte imbalance. The present study was designed to measure the serum calcium and inorganic phosphorous levels and to check the frequency of hypercalcemia and hypophosphatemia in breast cancer patients. Serum calcium and phosphorous levels of fifty breast cancer women of 18-70 years of age group and fifty healthy women of same age group were measured by using semi-automated chemistry analyzer ( Humalyzer 3000, Human, Germany ). Significant variation in these levels was observed. The mean calcium value in BC patients was higher 9.398 mg/dl as compared to controls which were 8.694 mg/dl. Whereas the mean value of inorganic phosphorus level was lower 4.060 mg/dl in BC patients as compared to controls having 4.456 mg/dl. In this study, the frequency of hypercalcemia in Breast cancer patients was 10% i.e. only 10 out of 50 Breast cancer patients were suffering from hypercalcemia. Whereas the frequency of hypophosphatemia in this study was only 2 % i.e. only 1 out of 50 patients was suffering from hypophosphatemia. Thus it is concluded that there is a significant change in serum calcium and inorganic phosphorous levels in Breast cancer patients as the disease progresses. So, this study will be helpful for the clinicians to maintain serum calcium and phosphorous levels in Breast cancer patients and also preventing them from further complications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=serum%20analysis" title="serum analysis">serum analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium" title=" calcium"> calcium</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20phosphorus" title=" inorganic phosphorus"> inorganic phosphorus</a>, <a href="https://publications.waset.org/abstracts/search?q=hpercalcemia%20hypophosphatemia" title=" hpercalcemia hypophosphatemia"> hpercalcemia hypophosphatemia</a> </p> <a href="https://publications.waset.org/abstracts/65717/estimation-of-serum-levels-of-calcium-and-inorganic-phosphorus-in-breast-cancer-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65717.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">293</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Gendered Self-Expression and Muslim Medieval Women's Participation in the Creation and Production of Islam's Literary Heritage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Moussoud">Safa Moussoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Contrary to modern misconceptions, women in the Muslim Middle Ages enjoyed a generous degree of liberty both in the public and private sphere. Poetry was a significant component of public life throughout the Muslim Civilization as its vitality and multi-generic nature acted as a way for medieval Muslims to communicate with each other. As such, a continuity of poetic literary heritage was preserved through multiple centuries and dynasties. This paper will argue that Muslim women were active participants in medieval Muslim society’s social and public sphere and therefore, can be seen as vital contributors to the intellectual and literary creation of the Muslim Civilization. This paper will examine poetry written by Safiyya al-Baghddadiya and Salma bint al-Qaratisi from the Abbasid period, as well as Wallada bint al-Mustakfi from the Andalusian period and focus particularly at the poetesses’ modes of self-expression regarding beauty and sexuality to argue that Medieval Muslim women enjoyed creative and literary liberty thus allowing them to proclaim their subjectivity publicly through poetry. By emphasizing women’s involvement in the social aspects of Medieval Muslim societies, this paper will ultimately urge for a more thorough investigation of Muslim women’s role and function in the making of the Muslim Civilization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arabo-Islamic%20society" title="Arabo-Islamic society">Arabo-Islamic society</a>, <a href="https://publications.waset.org/abstracts/search?q=medieval%20Muslims" title=" medieval Muslims"> medieval Muslims</a>, <a href="https://publications.waset.org/abstracts/search?q=Muslim%20poetesses" title=" Muslim poetesses"> Muslim poetesses</a>, <a href="https://publications.waset.org/abstracts/search?q=self-expression" title=" self-expression"> self-expression</a> </p> <a href="https://publications.waset.org/abstracts/112869/gendered-self-expression-and-muslim-medieval-womens-participation-in-the-creation-and-production-of-islams-literary-heritage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112869.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">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Design of Semi-Autonomous Street Cleaning Vehicle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khouloud%20Safa%20Azoud">Khouloud Safa Azoud</a>, <a href="https://publications.waset.org/abstracts/search?q=S%C3%BCleyman%20Ba%C5%9Ft%C3%BCrk"> Süleyman Baştürk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the pursuit of cleaner and more sustainable urban environments, advanced technologies play a critical role in evolving sanitation systems. This paper presents two distinct advancements in automated cleaning machines designed to improve urban sanitation. The first advancement is a semi-automatic road surface cleaning machine that integrates human labor with solar energy to enhance environmental sustainability and adaptability, especially in regions with limited access to electricity. By reducing carbon emissions and increasing operational efficiency, this approach offers significant potential for urban sanitation enhancement. The second advancement is a multifunctional semi-automatic street cleaning machine equipped with a camera, Arduino programming, and GPS for an autonomous operation aimed at addressing cost barriers in developing countries. Prioritizing low energy consumption and cost-effectiveness, this machine provides versatile cleaning solutions adaptable to various environmental conditions. By integrating solar energy with autonomous operating systems and careful design, these developments represent substantial progress in sustainable urban sanitation, particularly in developing regions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automated%20cleaning%20machines" title="automated cleaning machines">automated cleaning machines</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20energy%20integration" title=" solar energy integration"> solar energy integration</a>, <a href="https://publications.waset.org/abstracts/search?q=operational%20efficiency" title=" operational efficiency"> operational efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20sanitation%20systems" title=" urban sanitation systems"> urban sanitation systems</a> </p> <a href="https://publications.waset.org/abstracts/189006/design-of-semi-autonomous-street-cleaning-vehicle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/189006.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">33</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Proposition of an Intelligent System Based on the Augmented Reality for Warehouse Logistics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%20Gharbi">Safa Gharbi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hayfa%20Zgaya"> Hayfa Zgaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Nesrine%20Zoghlami"> Nesrine Zoghlami</a>, <a href="https://publications.waset.org/abstracts/search?q=Slim%20Hammadi"> Slim Hammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Cyril%20De%20Barbarin"> Cyril De Barbarin</a>, <a href="https://publications.waset.org/abstracts/search?q=Laurent%20Vinatier"> Laurent Vinatier</a>, <a href="https://publications.waset.org/abstracts/search?q=Christiane%20Coupier"> Christiane Coupier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Increasing productivity and quality of service, improving the working comfort and ensuring the efficiency of all processes are important challenges for every warehouse. The order picking is recognized to be the most important and costly activity of all the process in warehouses. This paper presents a new approach using Augmented Reality (AR) in the field of logistics. It aims to create a Head-Up Display (HUD) interface with a Warehouse Management System (WMS), using AR glasses. Integrating AR technology allows the optimization of order picking by reducing time of picking process, increasing the efficiency and delivering quickly. The picker will be able to access immediately to all the information needed for his tasks. All the information is displayed when needed in the field of vision (FOV) of the operator, without any action requested from him. These research works are part of the industrial project RASL (Réalité Augmentée au Service de la Logistique) which gathers two major partners: the LAGIS (Laboratory of Automatics, Computer Engineering and Signal Processing in Lille-France) and Genrix Group, European leader in warehouses logistics, who provided his software for implementation, and his logistics expertise. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Augmented%20Reality%20%28AR%29" title="Augmented Reality (AR)">Augmented Reality (AR)</a>, <a href="https://publications.waset.org/abstracts/search?q=logistics%20and%20optimization" title=" logistics and optimization"> logistics and optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=Warehouse%20Management%20System%20%28WMS%29" title=" Warehouse Management System (WMS)"> Warehouse Management System (WMS)</a>, <a href="https://publications.waset.org/abstracts/search?q=Head-Up%20Display%20%28HUD%29" title=" Head-Up Display (HUD)"> Head-Up Display (HUD)</a> </p> <a href="https://publications.waset.org/abstracts/16579/proposition-of-an-intelligent-system-based-on-the-augmented-reality-for-warehouse-logistics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16579.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">483</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Impact of Pulsing and Trickle Flow on Catalytic Wet Air Oxidation of Phenolic Compounds in Waste Water at High Pressure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safa%27a%20M.%20Rasheed">Safa'a M. Rasheed</a>, <a href="https://publications.waset.org/abstracts/search?q=Saba%20A.%20Gheni"> Saba A. Gheni</a>, <a href="https://publications.waset.org/abstracts/search?q=Wadood%20T.%20Mohamed"> Wadood T. Mohamed </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phenolic compounds are the most carcinogenic pollutants in waste water in effluents of refineries and pulp industry. Catalytic wet air oxidation is an efficient industrial treatment process to oxidize phenolic compounds into unharmful organic compounds. Mode of flow of the fluid to be treated is a dominant factor in determining effectiveness of the catalytic process. The present study aims to obtain a mathematical model describing the conversion of phenolic compounds as a function of the process variables; mode of flow (trickling and pulsing), temperature, pressure, along with a high concentration of phenols and a platinum supported alumina catalyst. The model was validated with the results of experiments obtained in a fixed bed reactor. High pressure and temperature were employed at 8 bar and 140 °C. It has been found that conversion of phenols is highly influenced by mode of flow and the change is caused by changes occurred in hydrodynamic regime at the time of pulsing flow mode, thereby a temporal variation in wetting efficiency of platinum prevails; which in turn increases and/or decreases contact time with phenols in wastewater. The model obtained was validated with experimental results, and it is found that the model is a good agreement with the experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wastewater" title="wastewater">wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=phenol" title=" phenol"> phenol</a>, <a href="https://publications.waset.org/abstracts/search?q=pulsing%20flow" title=" pulsing flow"> pulsing flow</a>, <a href="https://publications.waset.org/abstracts/search?q=wet%20oxidation" title=" wet oxidation"> wet oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20pressure" title=" high pressure"> high pressure</a> </p> <a href="https://publications.waset.org/abstracts/103492/impact-of-pulsing-and-trickle-flow-on-catalytic-wet-air-oxidation-of-phenolic-compounds-in-waste-water-at-high-pressure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103492.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">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Proposing a New Design Method for Added Viscoelastic Damper’s Application in Steel Moment-Frame</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Javaherzadeh">Saeed Javaherzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Babak%20Dindar%20Safa"> Babak Dindar Safa </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Structure, given its ductility, can depreciate significant amount of seismic energy in the form of hysteresis behavior; the amount of energy depreciation depends on the structure ductility rate. So in seismic guidelines such as ASCE7-10 code, to reduce the number of design forces and using the seismic energy dissipation capacity of structure, when entering non-linear behavior range of the materials, the response modification factor is used. Various parameters such as ductility modification factor, overstrength factor and reliability factor, are effective in determining the value of this factor. Also, gradually, energy dissipation systems, especially added dampers, have become an inseparable part of the seismic design. In this paper, in addition to reviewing of previous studies, using the response modification factor caused by using more added viscoelastic dampers, a new design method has introduced for steel moment-frame with added dampers installed. To do this, in addition to using bilinear behavior models and quick ways such as using the equivalent lateral force method and capacity spectrum method for the proposed design methodology, the results has been controlled with non-linear time history analysis for a number of structural. The analysis is done by Opensees Software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=added%20viscoelastic%20damper" title="added viscoelastic damper">added viscoelastic damper</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20base%20shear" title=" design base shear"> design base shear</a>, <a href="https://publications.waset.org/abstracts/search?q=response%20modification%20factor" title=" response modification factor"> response modification factor</a>, <a href="https://publications.waset.org/abstracts/search?q=non-linear%20time%20history" title=" non-linear time history"> non-linear time history</a> </p> <a href="https://publications.waset.org/abstracts/31363/proposing-a-new-design-method-for-added-viscoelastic-dampers-application-in-steel-moment-frame" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31363.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">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Isolation, Identification and Antimicrobial Susceptibility of Mycobacterium tuberculosis among Pulmonary Tuberculosis Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naima%20Nur">Naima Nur</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20Islam"> Safa Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeema%20Islam"> Saeema Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Faridul%20Alam"> Faridul Alam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Drug-resistant pulmonary tuberculosis (DR-PTB), particularly multidrug-resistant tuberculosis (MDR-TB) and pre-extensive drug-resistant (pre-XDR), is a major challenge in effectively controlling TB, especially in developing. This study aimed to identify the strains of M. tuberculosis complex (MTC) and drug resistance patterns among the pulmonary tuberculosis patients. Methods: The study used a cross-sectional design, and 815 patients were recruited randomly in three study periods. In the first-period, 210 treated PTB patients, who were completed their treatment, received their diagnoses using light microscopy, fluorescence microscopy and cultured on Lowenstein-Jensen (L-J) slant, and then strains were identified as MTC by biochemical tests, and then sensitivity test in National Institute of Diseases of the Chest and Hospital. In the second-period, 220 re-treated PTB patients, who were completed their treatment, received their diagnoses using culture on L-J slant, line probe assay (LPA), and GeneXpert in the same hospital. In the last-period, during treatment, 385 MDR-PTB patients received their diagnoses using culture on L-J slant and LPA in the same hospital. Results: Among sixty-two (29.5%) PTB patients, 13% were sensitive to all first-line anti-TB drugs, 26% were MDR-TB patients, and 14.2% were pre-XDR-TB among 14 MDR-TB patients. After three years, 31% were MDR-TB among 220 re-treated PTB patients. After five years, 16.4% was pre-XDR-TB among 385 MDR-TB patients. Compared to females, male patients were significantly higher at all times. Conclusion: The current study demonstrated that in three study periods, the proportions of DR-TB, MDR-TB, and pre-XDR patients were an alarming issue and increasing daily. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-drug%20resistant" title="multi-drug resistant">multi-drug resistant</a>, <a href="https://publications.waset.org/abstracts/search?q=drug-resistant" title=" drug-resistant"> drug-resistant</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-extensive%20drug%20resistant" title=" pre-extensive drug resistant"> pre-extensive drug resistant</a>, <a href="https://publications.waset.org/abstracts/search?q=pulmonary%20tuberculosis" title=" pulmonary tuberculosis"> pulmonary tuberculosis</a> </p> <a href="https://publications.waset.org/abstracts/182183/isolation-identification-and-antimicrobial-susceptibility-of-mycobacterium-tuberculosis-among-pulmonary-tuberculosis-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182183.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">55</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Resilience Assessment for Power Distribution Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Berna%20Eren%20Tokgoz">Berna Eren Tokgoz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20Safa"> Mahdi Safa</a>, <a href="https://publications.waset.org/abstracts/search?q=Seokyon%20Hwang"> Seokyon Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Power distribution systems are essential and crucial infrastructures for the development and maintenance of a sustainable society. These systems are extremely vulnerable to various types of natural and man-made disasters. The assessment of resilience focuses on preparedness and mitigation actions under pre-disaster conditions. It also concentrates on response and recovery actions under post-disaster situations. The aim of this study is to present a methodology to assess the resilience of electric power distribution poles against wind-related events. The proposed methodology can improve the accuracy and rapidity of the evaluation of the conditions and the assessment of the resilience of poles. The methodology provides a metric for the evaluation of the resilience of poles under pre-disaster and post-disaster conditions. The metric was developed using mathematical expressions for physical forces that involve various variables, such as physical dimensions of the pole, the inclination of the pole, and wind speed. A three-dimensional imaging technology (photogrammetry) was used to determine the inclination of poles. Based on expert opinion, the proposed metric was used to define zones to visualize resilience. Visual representation of resilience is helpful for decision makers to prioritize their resources before and after experiencing a wind-related disaster. Multiple electric poles in the City of Beaumont, TX were used in a case study to evaluate the proposed methodology.   <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photogrammetry" title="photogrammetry">photogrammetry</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20distribution%20systems" title=" power distribution systems"> power distribution systems</a>, <a href="https://publications.waset.org/abstracts/search?q=resilience%20metric" title=" resilience metric"> resilience metric</a>, <a href="https://publications.waset.org/abstracts/search?q=system%20resilience" title=" system resilience"> system resilience</a>, <a href="https://publications.waset.org/abstracts/search?q=wind-related%20disasters" title=" wind-related disasters"> wind-related disasters</a> </p> <a href="https://publications.waset.org/abstracts/72984/resilience-assessment-for-power-distribution-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72984.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">221</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Workplace Risk Assessment in a Paint Factory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rula%20D.%20Alshareef">Rula D. Alshareef</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20S.%20Alqathmi"> Safa S. Alqathmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghadah%20K.%20Alkhouldi"> Ghadah K. Alkhouldi</a>, <a href="https://publications.waset.org/abstracts/search?q=Reem%20O.%20Bagabas"> Reem O. Bagabas</a>, <a href="https://publications.waset.org/abstracts/search?q=Farheen%20B.%20Hasan"> Farheen B. Hasan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Safety engineering is among the most crucial considerations in any work environment. Providing mentally, physically, and environmentally safe work conditions must be the top priority of any successful organization. Company X is a local paint production company in Saudi Arabia; in a month, the factory experienced two significant accidents, which indicates that workers’ safety is overlooked. The aim of the research is to examine the risks, assess the root causes and recommend control measures that will eventually contribute to providing a safe workplace. The methodology used is sectioned into three phases, risk identification, assessment, and finally, mitigation. In the identification phase, the team used Rapid Entire Body Assessment (REBA) and National Institute for Occupational Safety and Health Lifting Index (NIOSH LI) tools to holistically establish knowledge about the current risk posed to the factory. The physical hazards in the factory were assessed in two different operations, which are mixing and filling/packaging. For the risk assessment phase, the hazards were deeply analyzed through their severity and impact. Additionally, through risk mitigation, the Rapid Entire Body Assessment (REBA) score decreased from 11 to 7, and the National Institute for Occupational Safety and Health Lifting Index (NIOSH LI) has been reduced from 5.27 to 1.85. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ergonomics" title="ergonomics">ergonomics</a>, <a href="https://publications.waset.org/abstracts/search?q=safety" title=" safety"> safety</a>, <a href="https://publications.waset.org/abstracts/search?q=workplace%20risks" title=" workplace risks"> workplace risks</a>, <a href="https://publications.waset.org/abstracts/search?q=hazards" title=" hazards"> hazards</a>, <a href="https://publications.waset.org/abstracts/search?q=awkward%20posture" title=" awkward posture"> awkward posture</a>, <a href="https://publications.waset.org/abstracts/search?q=fatigue" title=" fatigue"> fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=work%20environment" title=" work environment"> work environment</a> </p> <a href="https://publications.waset.org/abstracts/167140/workplace-risk-assessment-in-a-paint-factory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167140.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">79</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=Safa%20Boujemaa&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Safa%20Boujemaa&page=2" rel="next">&rsaquo;</a></li> </ul> </div> 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