European Journal of Engineering Research and Science https://www.ejers.org/index.php/ejers <table width="80%" cellpadding="10" align="center"> <tbody> <tr> <td rowspan="4" valign="top" width="20%"><img src="/public/site/images/editor_in_chief/dergi_issue2.jpg" alt="jets" align="left" border="0" hspace="30"> <button style="background: #10C9F5; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: white; margin: 5px; padding: 5px 5px 5px 5px; border-radius: 15px; border: 2px solid #0D0A0A; width: 275px;" type="button"><strong>DOI</strong> : 10.240818/EJERS</button> <button style="background: #10C9F5; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: white; margin: 5px; padding: 5px 5px 5px 5px; border-radius: 15px; border: 2px solid #0D0A0A; width: 275px;" type="button"><strong>ISSN</strong> : 2506-8016</button> <button style="background: #10C9F5; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: white; margin: 5px; padding: 5px 5px 5px 5px; border-radius: 15px; border: 2px solid #0D0A0A; width: 275px;" type="button"><strong>Impact Factor</strong> : 0,69</button> <button style="background: #10C9F5; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: white; margin: 5px; padding: 5px 5px 5px 5px; border-radius: 15px; border: 2px solid #0D0A0A; width: 275px;" type="button"><strong>Publication Frequency:</strong> Monthly</button> <button style="background: #10C9F5; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: white; margin: 5px; padding: 5px 5px 5px 5px; border-radius: 15px; border: 2px solid #0D0A0A; width: 275px;" type="button"><strong>Country of Origin:</strong> Belgium</button></td> <td align="right" valign="bottom" width="20%" height="70px">&nbsp;<img src="/upload/documents/new10_e0.gif" alt="gif" border="0"></td> <td align="left" valign="bottom" height="125px"><button style="background: #A2E3FF; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: blue; padding: 8px 16px; border-radius: 10px; border: 2px solid #4CAF50; width: 300px;" type="button">CALL FOR PAPER - NOVEMBER 2018</button></td> </tr> <tr> <td rowspan="3" align="right" valign="top" width="20%">&nbsp;</td> <td align="left" valign="top" height="75px"><button style="background: #A2E3FF; cursor: pointer; font-size: 15px; font-style: bold; text-align: center; color: blue; padding: 8px 16px; border-radius: 10px; border: 2px solid #4CAF50; width: 300px;" type="button">SUBMIT YOUR PAPER FOR PEER REVIEW</button> &nbsp;</td> </tr> <tr> <td align="left" valign="middle" height="100px"><img src="/public/site/images/editor_in_chief/crossref_badge2.png" alt="Natural" width="110" height="60"> <img src="/public/site/images/editor_in_chief/open_access.jpg" alt="Natural" width="110" height="60"> <img src="/public/site/images/editor_in_chief/indexing_policy2.jpg" alt="Natural" width="220" height="60"> <img src="/public/site/images/editor_in_chief/no_plagiarism2.jpg" alt="Natural" width="220" height="60"> <img src="/public/site/images/editor_in_chief/clockss_lockss.png" alt="Natural" width="100" height="60"></td> </tr> <tr> <td align="left" valign="top"> <p style="font-size: 14px; margin: 6px;">Submit&nbsp;<a href="/index.php/ejers/user/register"><span style="text-decoration: underline;"><strong>Online</strong></span>&nbsp;</a>or by&nbsp;<span style="text-decoration: underline;"><a href="mailto:editor@ejers.org"><strong>E-mail</strong></a></span>&nbsp;to&nbsp;<a href="mailto:editor@ejers.org">editor@ejers.org</a></p> </td> </tr> </tbody> </table> <table style="width: 100%;" cellpadding="7"> <tbody> <tr> <td>&nbsp; <iframe src="https://www.youtube.com/embed/jW1fB2qUlOU" width="450" height="250" frameborder="0"></iframe></td> <td valign="top" bgcolor="FAFAFA"> <p><span style="color: blue;">&nbsp;<strong><span style="font-size: 140%; color: blue;"> ►&nbsp;</span> <span style="font-size: 140%; color: blue; text-decoration: underline;">What does EJERS do</span></strong></span> <strong><span style="font-size: 140%; color: blue;"> ?</span></strong><strong><em>&nbsp;</em></strong></p> <p><strong>European Journal of Engineering Research and Science</strong>&nbsp;(EJERS) is a peer reviewed&nbsp;international journal publishes&nbsp;<strong>monthly</strong>&nbsp;full length state-of-the-art&nbsp;research papers, reviews, case studies related to <strong>all areas of Engineering and Science</strong>.&nbsp;</p> <p>All submitted articles:</p> <ul> <li class="show">must be <strong>original</strong></li> <li class="show">must be<strong> previously unpublished research results</strong></li> <li class="show">must be <strong>experimental or theoretical</strong></li> <li class="show">and will be <strong>peer-reviewed</strong></li> <li class="show">may not be <strong>considered for publication elsewhere at any time during the review period</strong></li> </ul> <p><strong>&nbsp;</strong>EJERS is published by<strong>&nbsp;<a href="http://www.europapublishing.org">European Open Access Publishing (EUROPA Publishing)</a></strong>&nbsp;</p> </td> </tr> </tbody> </table> <p>&nbsp;</p> <table style="width: 100%;" cellpadding="3"> <tbody> <tr> <td valign="top" bgcolor="FAFAFA"> <p><strong><span style="font-size: 140%; color: blue;">&nbsp; &nbsp; ►&nbsp;</span><span style="text-decoration: underline; font-size: 140%; color: blue;">Why do we do it</span><span style="font-size: 140%; color: blue;"> ?<em>&nbsp;</em></span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</strong>&nbsp;</p> <p>We believe that academic publishing should be a&nbsp;<strong>not-for-profit</strong>&nbsp;enterprise undertaken for the good of mass dissemination, not predicated upon exclusionary paywalls. Thus, EJERS aims to decrease the <strong><a href="/index.php/ejers/about/submissions#authorFees">Article Processing Charge (APC)</a></strong>&nbsp;to acceptable boundaries.&nbsp;</p> <p>&nbsp;</p> <p><strong>&nbsp; &nbsp; &nbsp;<span style="font-size: 140%; color: blue;">►&nbsp;<span style="text-decoration: underline;">How do we do it</span></span> <span style="font-size: 140%; color: blue;"> ?</span>&nbsp;&nbsp;</strong>&nbsp;</p> <p><strong>Open Access Policy</strong><br><br>EJERS provides immediate open access to its content on the principle that making research freely available after publication on the journal website to the public supports a greater global exchange of knowledge.</p> <p><img src="/public/site/images/editor_in_chief/open_access.jpg" alt=""></p> <hr align="left" width="250px"> <p><strong>Zero Tolerance for Plagiarism&nbsp;</strong></p> <p>EJERS has a policy of “Zero Tolerance on the Plagiarism”. We check the plagiarism issue through two methods: reviewer check and plagiarism prevention tool (iThenticate.com).</p> <p>All submissions will be checked by plagiarism prevention software before being sent to reviewers.</p> <p>&nbsp;<img src="/public/site/images/editor_in_chief/no_plagiarism2.jpg" alt=""></p> <hr align="left" width="250px"> <p><strong>Digital Archiving Policy&nbsp;</strong></p> <p>EJERS uses LOCKSS system as digital archiving policy. LOCKSS ensures long-term survival of Web-based scholarly publications. Namely, your publication will remain digitally available forever for free under Creative Commons License.</p> <p><img src="/public/site/images/editor_in_chief/clockss_lockss.png" alt=""></p> <hr align="left" width="250px"> <p>&nbsp;&nbsp;<strong>Indexing&nbsp;</strong></p> <p><br><span class="auto-style5">All EJERS content is indexed with&nbsp;<a href="http://www.crossref.org/">CrossRef</a>&nbsp;and assigned a&nbsp;<a href="http://www.doi.org/">Digital Object Identifier (DOI)</a>. This means that all of our references are made available so that citations can be tracked by the publishing community.</span></p> <p><span class="auto-style5">In addition, EJERS is indexed in :</span></p> <ul> <li class="show"><a style="background-color: #ffffff;" href="https://scholar.google.com/citations?hl=en&amp;user=A_Gus1kAAAAJ"><span class="auto-style5">Google Scholar</span></a></li> <li class="show"><a style="background-color: #ffffff;" href="https://portal.issn.org/resource/ISSN/2506-8016"><span class="auto-style5">ROAD</span></a></li> <li class="show"><a style="background-color: #ffffff;" href="https://www.scilit.net/pub/article/10.24018"><span class="auto-style5">SCILIT</span></a></li> <li class="show"><a style="background-color: #ffffff;" href="https://www.worldcat.org/search?q=so%3AEuropean+Journal+of+Engineering+Research+and+Science&amp;qt=results_page"><span class="auto-style5">WorldCat</span></a></li> <li class="show"><a style="background-color: #ffffff;" href="https://www.scienceopen.com/user/3eed4386-308b-4036-abc4-d2d83df0dcdd"><span class="auto-style5">ScienceOpen</span></a></li> </ul> <img src="/public/site/images/editor_in_chief/indexing_policy.png" alt="Natural" width="1200" height="60"><hr align="left" width="250px"> <p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p> <p><strong>Paper Selection and Publishing Process</strong></p> <p><em>a) Submission Acknowledgement</em></p> <p>When you submit a manuscript online, you will receive a submission acknowledgement letter sent by the online system automatically. For email submissions, the editor or editorial assistant sends an email confirmation to the authors within one to three working days. If you fail to receive this confirmation, please check your bulk email box or contact the editorial assistant.</p> <p><em>b) Basic Review</em></p> <p>The editor or editorial assistant determines whether the manuscript fits the journal’s focus and scope. Next a check for the similarity index is done by using CrossCheck, powered by iThenticate. Any manuscripts that are out of the journal’s scope or containing plagiarism, including self-plagiarism, are rejected.</p> <p><em>c) Peer Review</em></p> <p>We use a double-blind system for peer reviewing; both reviewers’ and authors’ identities remain anonymous&nbsp;to each other. The paper will be peer-reviewed by two or three experts;&nbsp;one is an editorial staff and the other two are external reviewers.&nbsp;The review process may take two to four weeks.</p> <p><em>d) Decision&nbsp;</em></p> <p>The decision&nbsp;(Acception, Revision or Decline)&nbsp;is based on the suggestions of reviewers. If there is a different opinion between reviewers, the editor will arrive to a balanced decision based on all the comments, or a second round of peer-reviewing may be initiated.&nbsp;</p> <p><em>e) Publication Fee</em></p> <p>In order to start the copyediting procedures, <a href="/index.php/ejers/about/submissions#authorFees">Paper Publication Fee</a>&nbsp;must be paid.&nbsp;</p> <p><em>f) Copyediting Process-Step 1 : Journal Template Adaptation</em></p> <p>The authors need to re-edit the paper, using the template. The re-edited paper should use the template provided by us and meet the formatting requirements outlined in the Author Guidelines.</p> <p>All accepted manuscripts are obligated to adapt the layout of the paper according to the journal's template. EJERS provides a <a href="/upload/documents/EJERS_template.docx">.DOCX template format</a>, and also accepts <a href="https://www.ieee.org/conferences/publishing/templates.html">IEEE journal LaTeX template format</a>.</p> <p><em>g) Copyediting Process-Step 2</em></p> <p>After receiving the revised paper. Our editing staff will work on the layout and format. After the process, we will invite you to check the paper again.</p> <p><em>h) Online Publication &amp; Indexing</em></p> <p>E-journal in .PDF &nbsp;format will be available on the journal’s webpage free of charge for download. In addition, a DOI identifier will be assigned to your paper, and you will be informed regarding to the DOI number.</p> <p>&nbsp;&nbsp;</p> <p>&nbsp;</p> </td> </tr> </tbody> </table> en-US <p>The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party.</p> <p>Submission of the manuscript represents that the manuscript has not been published previously and is not considered for publication elsewhere.&nbsp;</p> editor@ejers.org (Editor-in-Chief) editor@ejers.org (Support) Tue, 01 Oct 2019 00:00:00 -0400 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Pyramidal Microwave Absorber Design for Anechoic Chamber in the Microwave Frequency Range of 1GHz to 10GHz https://www.ejers.org/index.php/ejers/article/view/1409 <p class="Abstract"><span lang="EN-US">The design of microwave absorbers is directly correlated to the general performance of an anechoic chamber for its signal absorptive capabilities. However, the cost of importing the total required microwave absorber for the 5m × 4m × 3m proposed anechoic chamber in the University of Port Harcourt Nigeria is at the tune of twenty-seven thousand dollars. This research is carried out to simulate and fabricate the microwave absorber using polyurethane material and locally obtained carbon in order to reduce cost. The simulation is done using Computer Simulation Technology (CST) software for the desired frequency range of 1GHz to 10GHz. Simulation results proved to have good absorptive performance and reflectivity loss comparable to that of the conventional microwave absorber. The reflectivity performance is below -30dB across the desired frequency range. With the polyurethane material and locally obtained conducting carbon the estimated cost is five thousand five hundred dollars against the twenty-seven thousand dollars importation cost; thereby reducing the cost by more than 60%. </span></p> Stella Ifeoma Orakwue, Igochi Praise Onu Copyright (c) 2019 Stella Ifeoma Orakwue, Igochi Praise Onu http://creativecommons.org/licenses/by/4.0 https://www.ejers.org/index.php/ejers/article/view/1409 Tue, 01 Oct 2019 15:55:03 -0400 Models of Sexually Transmitted Diseases https://www.ejers.org/index.php/ejers/article/view/1543 <p>In the present work a study of the situation that is presented in Brazil with regard to the sexually transmitted diseases is made, indicating those groups of people for which the most common certain diseases. It introduces a system of differential equations that simulates the process of transmission of different diseases, if different cases are studied that derive from the general system; the system is simplified according to the case, a qualitative study of the system of equations is presented and conclusions are drawn regarding the future situation in relation to the number of infested patients.</p> E. Soto, N. Fernandes, S. Sánchez, L. Leão, Z. Ribeiro, R. Ferreira, Ivan Ruiz Copyright (c) 2019 E. Soto, N. Fernandes, S. Sánchez, L. Leão, Z. Ribeiro, R. Ferreira, Ivan Ruiz http://creativecommons.org/licenses/by/4.0 https://www.ejers.org/index.php/ejers/article/view/1543 Tue, 08 Oct 2019 03:49:53 -0400 Research Method to Calculate Cutting Force when Longitudinal Feed Centerless Grinding https://www.ejers.org/index.php/ejers/article/view/1567 <p class="Abstract" style="text-indent: 0mm;">The paper presents the results of analyzing the relationship between cutting force components and the force components exerting on the workrest blade, the ratio of slip - acceleration of the rotation motion between the part and control wheel, translational motion acceleration of the part along the axial axis when longitudinal feed centerless grinding. From that, the method of calculating cutting force components is calculated by measuring the force components exerting on the workrest blade, the ratio of slip, cceleration of the rotation motion between the part with control wheel, translational motion acceleration of the part along the axial axis. On that basis, this research also provides orientation for the construction of a system to measure the force, acceleration, velocity components, ... Then the development direction for the next research is also mentioned in the article.</p> Do Duc Trung, Nguyen Hong Son, Le Hong Ky, Le Hoang Anh Copyright (c) 2019 Do Duc Trung, Nguyen Hong Son, Le Hong Ky, Le Hoang Anh http://creativecommons.org/licenses/by/4.0 https://www.ejers.org/index.php/ejers/article/view/1567 Wed, 09 Oct 2019 07:49:48 -0400