International Journal of Engineering and Applied Physics https://ijeap.org/ijeap <hr /><hr /> <table style="width: 99.4295%; height: 247px;" width="100%" bgcolor="#f0f0f0"> <tbody> <tr style="height: 247px;" valign="top"> <td style="width: 15.4728%; height: 247px;"> <p><br /> Journal title<br /> Initials<br /> Frequency<br /> ISSN<br /> CODEN<br /> ARK ID<br /> Call For Papers<br /> Email</p> </td> <td style="width: 59.8854%; height: 247px;"> <p><br />: <strong>International Journal of Engineering and Applied Physics</strong> <br />: <strong>Int J Eng and Appl Phys</strong><br />: <strong>3 issues per year (January, May, September)</strong><br />: <strong>2737-8071</strong><strong><br /></strong>: <strong>IJEAE7</strong><br />: <strong>Ark:/15735</strong><br /><strong>: <a title="IJEAP : Volume 05, Issue 03, CFP" href="https://ijeap.org/ijeap/about/submissions" target="_blank" rel="noopener">Volume 05, Issue 03</a><br />: <a href="mailto:[email protected]">[email protected] / </a><a title="ijeap gmail " href="mailto:[email protected]" target="_blank" rel="noopener">[email protected]</a><br /></strong></p> </td> <td style="width: 23.2091%; height: 247px;"><img src="https://ijeap.org/public/site/images/admin/vol5-issue-1-1.png" alt="IJEAP Cover" width="255" height="360" /></td> </tr> </tbody> </table> <hr /><hr /> <div align="justify"> <p><strong>The International Journal of Engineering and Applied Physics (IJEAP)</strong>, is an international academic open access journal which gains a foothold and opens to the world. Scope of the journal includes but not limited to applied physics and applied mathematics, automation and control, biomedical engineering, chemical engineering, civil engineering, computer engineering, computer science, data engineering and software engineering, earth and environmental engineering, electrical engineering, industrial engineering and operations research, information technology and informatics, materials science, measurement and metrology, mechanical engineering, medical physics, power engineering, signal processing and telecommunications.<br />The IJEAP journal aims for a publication speed of 90 days from submission until final publication. IJEAP uses the LOCKSS archival system and cited in Google Scholar, ASI database, DRJI, ResearchBib, Citefactor, WorldCat, BASE and EuroPub.</p> </div> IJEAP en-US International Journal of Engineering and Applied Physics 2737-8071 <p>Copyright on any article in the <em><strong>International Journal of Engineering and Applied Physics</strong></em> is retained by the author(s) under the <strong><a title="ijeap Creative Commons license" href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="noopener">Creative Commons license</a></strong>, which permits unrestricted use, distribution, and reproduction provided the original work is properly cited.</p> <h2>License agreement</h2> <p>Authors grant IJEAP a license to publish the article and identify IJEAP as the original publisher.</p> <p>Authors also grant any third party the right to use, distribute and reproduce the article in any medium, provided the original work is properly cited.</p> Mode shapes for free vibration of clamped plates with various geometries based on an quadrilateral element https://ijeap.org/ijeap/article/view/263 <p>This work aims at presenting mode shapes for free vibration of clamped plates with various geometries based on a four-node quadrilateral element, CP-DSG4, related to discrete shear gap (DSG) strategy and adding a center point (CP). The efficiency of the CP-DSG4 element is demonstrated through some numerical tests.</p> Lan Hoang That Ton Copyright (c) 2025 Lan Hoang That Ton https://creativecommons.org/licenses/by/4.0 2025-05-25 2025-05-25 5 2 1179 1183 Evaluation of production cost of bricks using clay and stone dust-cement https://ijeap.org/ijeap/article/view/250 <p>This study aimed to investigate whether mixing clay soil, stone dust, and 5% cement could enhance strength, reduce water absorption, and lower production costs, without compromising the material's quality. Clay soil from near FUTA, Akure and stone dust from a quarry were used. Tests were conducted on the raw materials, including sieve analysis, moisture content, bulk density, and specific gravity. Clay soil was partially replaced with stone dust at 0% (control), 5%, 10%, 15%, 20%, and 25%, with a constant 5% cement. 288 bricks were produced, 144 air-dried and 144 fired at 1000°C. Compressive strength and water absorption tests were performed on both burnt and unburnt bricks. The results showed that for burnt bricks at 28 days, water absorption ranged from 11.11% to 20.00%, and for unburnt bricks, 3.33% to 7.69%. The compressive strength of burnt bricks increased up to 15% stone dust replacement, then decreased, while unburnt bricks showed a gradual strength reduction with increasing replacement. Both results met NIS and BS standards for normal building bricks.</p> IJANUSI Ebenezer Oluwafemi AIYEWALEHINMI E. O. Funminiyi Oyekunle ODOFIN Sunday Festus Copyright (c) 2025 IJANUSI Ebenezer Oluwafemi, AIYEWALEHINMI E. O., Funminiyi Oyekunle, ODOFIN Sunday Festus https://creativecommons.org/licenses/by/4.0 2025-07-09 2025-07-09 5 2 1184 1195 Complementarity of the trombe wall effect and air distribution in passive air conditioning of a single-zone building https://ijeap.org/ijeap/article/view/251 <p>The work in this article presents the study of the Complementarity of the trombe wall effect and the distribution of air to the passive air conditioning of a single-zone building by simulating the thermal behavior of a habitat located in Madagascar, in Antananarivo.&nbsp;The practical recommendation of the heat flow exchanged by thermocirculation is done in an ingenious system.&nbsp;The first part of the work will be based on the installation of a solar capture system, a vertical wall in heavy masonry facing north and equipped with two holes.&nbsp;It allows and facilitates the simulation of an air circulation system between this building and the greenhouse formed by the receiving surface of the wall and the glazing that precedes it.&nbsp;The second will develop the physical modeling of the system obtained by assembling simplified thermal models of the wall elements, glazing and air volume constituting this zone.&nbsp;The analysis of the system will be able to receive a well-air-conditioned home.</p> Andry Thierry RANDRIANARINOSY Copyright (c) 2025 Andry Thierry RANDRIANARINOSY https://creativecommons.org/licenses/by/4.0 2025-05-25 2025-05-25 5 2 1196 1204 Multi-Criteria Evaluation of XL-Terrasil and Metakaolin Geopolymer for Subgrade Improvement in Rural Roads of Ondo State, Nigeria https://ijeap.org/ijeap/article/view/252 <p>Weak lateritic soils in tropical regions present significant challenges for road construction due to their poor load-bearing capacity and high compressibility. This study evaluated the effectiveness of XL-Terrasoil (XL) and Metakaolin (MTK) in stabilizing weak lateritic soils from three locations in Ondo State, Nigeria, to enhance their suitability for subgrade applications. A laboratory-based experimental approach was adopted. Soil samples were collected from failed road sections and subjected to stabilization, XL -Terrasil and Metakaolin was incorporated into the soil as percentage of its dry weight with dosages set at (0.5%–2.5%) for XL- Terrasil and (2%–10%) for Metakaolin, while the control samples without additive (0% Dosage) was prepared for base line comparison. Tests performed include compaction, unconfined compressive strength (UCS), California Bearing Ratio (CBR), permeability, and microstructural analyses (XRF, SEM-EDX, and XRD). The untreated soil samples exhibited poor engineering properties: Location 1 had UCS of 180 kPa and CBR of 6.5%; Location 2 showed UCS of 165 kPa and CBR of 12%; while Location 3 had UCS of 195 kPa and CBR of 18%. Stabilization with 1% XL improved UCS to 340 kPa (90% increase), while 6% MTK further enhanced UCS to 420 kPa (133% increase). Similarly, soaked CBR improved to 30% with 1% XL and 40% with 6% MTK. Permeability reduced significantly, with 6% MTK decreasing hydraulic conductivity to 8.0 × 10?? m/s (65% reduction). Microstructural analyses confirmed improved bonding between grainsand better crystallinity, silica -alumina promote cohesion and decrease plasticity particularly in MTK-treated samples. The study concluded that Metakaolin outperforms XL-Terrasoil in improving soil strength, durability, and permeability, making it the preferred stabilizer for sustainable subgrade applications in tropical road construction.</p> Olusumbo Fajemilua Olumuyiwa Aderinola Copyright (c) 2025 Olusumbo Fajemilua, Prof. Olumuyiwa Samson Aderinola https://creativecommons.org/licenses/by/4.0 2025-05-25 2025-05-25 5 2 1205 1213