International Journal of Engineering and Computer Science https://ijecs.in/index.php/ijecs <p style="font-weight: 400;"><strong>International Journal Of Engineering And Computer Science </strong></p> <p style="font-weight: 400;">IJECS is a leading international journals for publication of new ideas, the state of the art research results and fundamental advances in all aspects of computer science and engineering. IJECS is a scholarly open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications related to Computer Science and Engineering</p> <p style="font-weight: 400;">It is an international journal intended for professionals and researchers in all fields of computer science and electronics. The IJECS publishes research articles and reviews within the whole field computer science &amp; engineering, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject.</p> <p style="font-weight: 400;">IJECS welcomes the submission of documents relating to any branch of the Theory of Computing and Engineering and its applications in business, industry and other topics. The topics covered by the journal include artificial intelligence, bioinformatics, computational statistics, database, data mining, financial engineering, hardware systems, imaging engineering, industrial engineering, internet computing, networking, operations research scientific computing, software engineering and its applications</p> <p style="font-weight: 400;"><strong>Editorial Policy&nbsp;</strong></p> <p style="font-weight: 400;">Authors should prepare their manuscripts according to the instructions given in the authors' guidelines. Manuscripts which do not conform to the format and style of the Journal may be returned to the authors for revision or rejected. The Journal reserves the right to make any further formal changes and language corrections necessary in a manuscript accepted for publication so that it conforms to the formatting requirements of the Journal</p> <p style="font-weight: 400;"><strong>Why IJECS&nbsp;</strong></p> <ul> <li class="show" style="font-weight: 400;">&nbsp; &nbsp;IJECS is an International, Peer reviewed, Open Access Journal</li> <li class="show" style="font-weight: 400;">&nbsp; &nbsp;Paper will publish immediately in current issue after registration</li> <li class="show" style="font-weight: 400;">&nbsp; &nbsp;IJECS accepts original and high quality research and technical papers</li> <li class="show" style="font-weight: 400;">&nbsp; &nbsp;Authors can download their full length paper at any time</li> <li class="show" style="font-weight: 400;">&nbsp; &nbsp;frequency of publication Monthly</li> </ul> <p>Articles of IJECS are subjected to peer reviewing and these are included in the standard indexing databases like Cross Ref DOI, Index Copernicus (IC Value), Scientific Indexing Services SIS, Directory&nbsp;of&nbsp;Open Access Journals DOAJ, Directory&nbsp;of&nbsp;Research Journals Indexing DRJI, Google Scholar, Research Bible, New Jour, Jour Informatics, Science&nbsp;Center.</p> <p style="font-weight: 400;"><strong>Important notice</strong></p> <p>Authors can now directly send their manuscript as an email attachment to editor@ijecs.in&nbsp;</p> <p>All manuscripts are subject to rapid peer review. Those of high quality (not previously published and not under consideration for publication in another journal) will be published without delay. First-time users are required to register themselves as an author before making submissions by signing up the author registration form at journals website</p> <p>www. http://ijecs.in</p> <p>With the online journal management system that we are using, authors will be able to track manuscripts progress through the editorial process by logging in as author in authors Dashboard.</p> <p><strong>Top Reasons for publication with us</strong></p> <p><strong>Quick Quality Review:</strong>&nbsp;The journal has strong international team of editors and reviewers, Rapid Decision and Publication</p> <p><strong>Very Low Publication Fees:</strong>&nbsp;Comparable journals charge a huge sum for each accepted manuscript. IJEECS only charge the fees necessary to recoup cost associated with running the journal</p> <p>IJECS would take much care in making your article published without much delay with your kind cooperation.</p> <p>IJECS hopes that Researchers, Research scholars, Academician, Industrialists, Consultancy etc. would make use of this journal publication for the development of science and technology</p> International Journal of Engineering and Computer Science en-US International Journal of Engineering and Computer Science 2319-7242 Electromagnetic Field and Total Loss Analysis of Transformers by Finite Element Method https://ijecs.in/index.php/ijecs/article/view/4262 <p>In the design of transformers, determining the optimum values ​​of the design parameters, the system in which the transformer will be used and the electrical power to be transferred are important for the continuity and safety of the system. It is very important for transformer design to know the electromagnetic field distribution and losses by creating electrical model of transformers. In this study, the theoretical, experimental and numerical analysis of the transformer were carried out. With the ANSYS @ MAXWELL-3D, simulations were carried out to determine the electromagnetic fields generated in transformer cores and windings for the purpose of efficient and safe operation of transformers. The results obtained during the study were calculated in real time. With the ANSYS @ MAXWELL-3D package software, the magnetic field and magnetic flux distribution of the transformer, especially in the case of transient events, are investigated. In addition, the core and copper loss of the transformer were examined experimentally, theoretically and numerically and comparisons were made. In this paper, by taking into consideration the electromagnetic field model, the core and winding design of the transformer were made and the equivalent circuit parameters were determined. In this study, short circuit test and open circuit test of transformers were carried out and field analyzes of transformers were performed and cores and copper losses were calculated and compared. The effect of ferromagnetic properties on core losses was determined, problem areas were determined, and the effect of magnetic field density and flux intensity on losses were determined. These results proved the accuracy of the FEM method used.</p> Ibrahim Halil Teke Yıldırım ÖZÜPAK Mehmet Salih MAMİŞ ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2019-01-03 2019-01-03 8 01 24451 24460 10.18535/ijecs/v8i1.01 Effective Face Detection Using DCT(Discrete Cosine Transform) Algorithm Through Block Weighting scheme https://ijecs.in/index.php/ijecs/article/view/4258 <p>Face recognition has become one of the most addressed pattern recognition problems due to its importance as a natural biometric trait and due to its role in human computer interfaces.</p> <p>Face detection has wide range of applications such as automatic face recognition, human­ machine interactions, surveillance, etc. In recent years there has been substantial progress on detection schemes based on appearances of faces. Holistic approaches have been dominating the face recognition research since the beginning of 1990s. On the other hand , recently, local appearance based face recognition approaches have attracted a growing interest. In salient local regions, such as the eye regions, are used to perform modular eigenfaces based face recognition.</p> <p>In&nbsp; recent&nbsp; face&nbsp; recognition&nbsp; system, the&nbsp; face&nbsp; or&nbsp; image&nbsp; is&nbsp; considered&nbsp; as&nbsp; block&nbsp; of rectangular images. HaZlln Kemal Ekene1(2009),&nbsp; in his paper on "Block&nbsp; Selection in the Local Appearance-based Face Recognition Scheme, describes that the face image is divided . into&nbsp; rectangular&nbsp; smaller&nbsp; sub-images&nbsp; without &nbsp;considering&nbsp; any&nbsp; specific&nbsp; regions,&nbsp; and&nbsp; the eigenfaces approach is then performed on each of these sub-images. The local facial regions are&nbsp; located&nbsp; by&nbsp; a&nbsp; Support&nbsp; Vector&nbsp; Machine&nbsp; (SVM)&nbsp; and&nbsp; the&nbsp; combined&nbsp; local&nbsp; features&nbsp; are classified again with SVM. The face image is partitioned into several local regions and each local region is represented by Linear Discriminant Analysis (LOA). To combine the features extracted from each local region, another LOA is used.&nbsp;&nbsp; Along with these two techniques, Discrete Cosine Transform(DCT) is also used. OCT plays the main role for face detection in this dissertation. DCT is combined with a Block Weighting Scheme. The Block Weighting Scheme measures the contribution of each block in a face image.</p> <p>The basic idea is: clean blocks should impact the result more than the occluded one. For each block in one image, the probability of the block belonging to each class, rather than the classification result is computed. These probabilities are combined to obtain classification result for the whole image.</p> Shivi Shrivastava ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2019-01-08 2019-01-08 8 01 24461 24468 10.18535/ijecs/v8i1.02