Journal of Engineering最新文献_第4页

Evaluation of the Stability and Flow of Asphalt Concrete Produced with Waste Brick Tile Powder as a Filler 评估以废砖瓦粉为填料生产的沥青混凝土的稳定性和流动性

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.01

J. A. TrustGod, Ebuka Nwankwo

{"title":"Evaluation of the Stability and Flow of Asphalt Concrete Produced with Waste Brick Tile Powder as a Filler","authors":"J. A. TrustGod, Ebuka Nwankwo","doi":"10.31026/j.eng.2023.12.01","DOIUrl":"https://doi.org/10.31026/j.eng.2023.12.01","url":null,"abstract":"The utilization of recycled brick tile powder as a replacement for conventional filler in the asphalt concrete mix has been studied in this research. This research evaluates the effectiveness of recycled brick tile powder and determines its optimum replacement level. Using recycled brick tile powder is significant from an environmental standpoint as it is a waste product from construction activities. Sixteen asphalt concrete samples were produced, and eight were soaked for a day. Samples contained 5% Bitumen, 2% to 5% brick tile powder, and conventional stone dust filler. The properties of samples were evaluated using the Marshall test. It was observed that the resistance to stiffness and deformation of asphalt concrete was increased by 99% when the conventional filler was replaced with brick tile powder. The resistance to deformation decreases as the percentage of brick tile powder increases while Marshall stability values increase significantly. At an optimum content of 4% recycled brick tile powder as filler, the Marshall stability is increased by 123%. Based on this investigation, it is established that brick tile powder can be effectively used in asphaltic concrete as a filler. This presents a sustainable solution to waste utilization and pavement performance.\u0000 ","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"82 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138606236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and Experimental Investigation of Performance and Flow Behavior for Steam Ejector Refrigeration System 蒸汽喷射器制冷系统性能和流动行为的模拟与实验研究

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.02

Shakir Jasim, A. W. Ezzat, Eric Hu

{"title":"Simulation and Experimental Investigation of Performance and Flow Behavior for Steam Ejector Refrigeration System","authors":"Shakir Jasim, A. W. Ezzat, Eric Hu","doi":"10.31026/j.eng.2023.12.02","DOIUrl":"https://doi.org/10.31026/j.eng.2023.12.02","url":null,"abstract":"The ejector refrigeration system is a desirable choice to reduce energy consumption. A Computational Fluid Dynamics CFD simulation using the ANSYS package was performed to investigate the flow inside the ejector and determine the performance of a small-scale steam ejector. The experimental results showed that at the nozzle throat diameter of 2.6 mm and the evaporator temperature of 10oC, increasing boiler temperature from 110oC to 140oC decreases the entrainment ratio by 66.25%. At the boiler temperature of 120oC, increasing the evaporator temperature from 7.5 to 15 oC increases the entrainment ratio by 65.57%. While at the boiler temperature of 120oC and the evaporator temperature of 10oC, increasing the nozzle throat diameter from 2.4 to 2.8 mm decreases the entrainment ratio by 40%. The numerical results showed that reducing the condenser back pressure or increasing the primary fluid temperature, secondary fluid temperature, and nozzle throat diameter moves the second shock waves in the downstream direction. It could be concluded that the second shock series position detects the ejector operation mode. The ejector runs in critical mode if the second shock series position is close to the diffuser. In contrast, if the second shock series position moves toward the upstream, the ejector runs in subcritical mode.","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"57 3","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138606714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement 旧沥青路面拓宽拼接车道的结构设计指标和设计方法探讨

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.03

Li Jun, Chen-Xi Liao, Xiao-Ge Tian, Xie Zhen

引用次数: 0

Augmented Reality’s Role in Highlighting Historical Heritage / Kirkuk Citadel 增强现实技术在彰显历史遗产方面的作用/基尔库克城堡

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.07

Sally Nazar Abdul-Jabbar, A. Alwehab

{"title":"Augmented Reality’s Role in Highlighting Historical Heritage / Kirkuk Citadel","authors":"Sally Nazar Abdul-Jabbar, A. Alwehab","doi":"10.31026/j.eng.2023.12.07","DOIUrl":"https://doi.org/10.31026/j.eng.2023.12.07","url":null,"abstract":"Augmented Reality (AR) is one of the technological developments in recent years that uses the real world as a basic pillar and enhances it by overlaying virtual objects created by computers. The study provides an overview of the use of augmented reality technology in meeting one of the most important requirements of cultural tourism: highlighting cultural and historical heritage. Accordingly, the research problem concentrated on the lack of local literature associated with the use of augmented reality in cultural tourism. It aimed to fill this gap by building a knowledge base and demonstrating the potential of augmented reality in this field. Hence, the importance of research in drawing the attention of tourism practitioners to the importance of augmented reality and discovering its potential. The research discusses the topics of cultural heritage, cultural tourism, augmented reality, and the study of its potential and applications in tourism. Augmented reality capabilities from the theoretical framework have been applied to Kirkuk Citadel -as a case of study- through the application of a proposal by the researcher for Kirkuk Citadel. The research concludes that augmented reality is an interactive scientific guide that supports the tourist, meets his cultural needs, and positively impacts the quality of tourism and tourist attractions.\u0000The study is part of an ongoing research project aimed at developing the tourism of historic city centers through augmented reality technology.","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"110 30","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138607942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation of Pile Group Response in Slope Layered Soil under the Effect of Seismic Loading 地震荷载作用下斜坡层状土中桩群响应的数值模拟

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.11

Mustafa A. Ismael, Balqees A. Ahmed

引用次数: 0

Factors Affecting Building Maintenance Practices: Review 影响建筑维护做法的因素：回顾

IF 2.7

Journal of Engineering Pub Date : 2023-12-02 DOI: 10.31026/j.eng.2023.12.10

Esraa M. Kadhim, Meervat R. Altaie

{"title":"Factors Affecting Building Maintenance Practices: Review","authors":"Esraa M. Kadhim, Meervat R. Altaie","doi":"10.31026/j.eng.2023.12.10","DOIUrl":"https://doi.org/10.31026/j.eng.2023.12.10","url":null,"abstract":"Buildings begin to deteriorate gradually over time due to several factors, including environmental influences, improper use of the building, and neglected repairs for damages during the building's life span. Effective maintenance practices can minimize operational costs, extend the life of building systems and components, improve energy efficiency, and maintain property value. This paper aims to review articles related to building maintenance to identify factors affecting maintenance practices. After conducting the review, the result was that there were 33 factors affecting building maintenance categorized into six groups: management-related factors, manpower-related factors, technical-related factors, financial-related factors, building user-related factors, and building characteristics-related factors. Facility managers can enhance their understanding of building maintenance by examining the various factors that affect maintenance. By doing so, they can assess how these factors affect maintenance practices. This evaluation is crucial as it assists in creating efficient maintenance plans while optimizing resource allocation and timely repairs. Moreover, this approach enables facility managers to adopt proactive strategies toward maintenance, ultimately leading to cost savings by addressing or managing potential obstacles hindering optimal building maintenance.\u0000 ","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"116 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138607473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Factors Affecting the Competitive Advantage of Organizations in Establishing Sustainable Project Management Post Covid-19 评估影响组织在建立可持续项目管理后竞争优势的因素--Covid-19

IF 2.7

Journal of Engineering Pub Date : 2023-11-22 DOI: 10.1155/2023/3529313

A. Bageis, Ahsan Waqar, Nadhim Hamah Sor, Hammad R. Almujibah, Abdul Hannan Qureshi, P. Jagadesh, A. Deifalla, Muhammad Basit Khan, Yakubu Dodo, M. M. Arbili, Mohammed Abuhussain, Omrane Benjddou

{"title":"Evaluation of Factors Affecting the Competitive Advantage of Organizations in Establishing Sustainable Project Management Post Covid-19","authors":"A. Bageis, Ahsan Waqar, Nadhim Hamah Sor, Hammad R. Almujibah, Abdul Hannan Qureshi, P. Jagadesh, A. Deifalla, Muhammad Basit Khan, Yakubu Dodo, M. M. Arbili, Mohammed Abuhussain, Omrane Benjddou","doi":"10.1155/2023/3529313","DOIUrl":"https://doi.org/10.1155/2023/3529313","url":null,"abstract":"Competitive advantage significantly matters for modern construction organizations as it promotes the sustainable development and safety management of projects. UK construction organizations have greatly suffered from a lack of safety and sustainability of project management in infrastructure development projects because of the COVID-19 pandemic. Post-COVID-19 UK infrastructure development projects are uncertain in the context of organizational competitive advantage as they cannot maintain sustainable project management. This study was conducted to identify, rank, and present a framework of factors influencing the competitive advantage of UK organizations. The study design involved identifying factors from the current literature, after which the most relevant factors were filtered with the help of semi-structured interviews with 15 experts. A pilot survey was conducted then, involving 192 respondents, after which a reliability test and exploratory factor analysis (EFA) were conducted on the results. A primary questionnaire survey involving 250 respondents was conducted, after which RII and confirmatory factor analysis (CFA) were conducted on the final data. A total of five subgroups were found to be significant in the CFA, such as Resources and Policies, Quality and Delays, Motivation and Expectation, Management and Environment, and Government and Business. It is recommended based on findings that the construction organizations of the UK have to consider working on identified factors to maintain a competitive advantage in establishing sustainable project management solutions for post-COVID-19 UK infrastructure development projects.","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"104 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139250437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Analysis on Kerosene Oil-Based Two Groups of Ternary Hybrid Nanoparticles (CNT-Gr-Fe3O4 and MgO-Cu-Au) Mix Flow over a Bidirectional Stretching Sheet: A Comparative Approach 煤油基两组三元混合纳米粒子（CNT-Gr-Fe3O4 和 MgO-Cu-Au）在双向拉伸片上混合流动的热分析：一种比较方法

IF 2.7

Journal of Engineering Pub Date : 2023-11-20 DOI: 10.1155/2023/8828300

Shilpa Choudhary, R. Mehta, Nazeek Alessa, Sanju Jangid, M. Venkateswar Reddy

{"title":"Thermal Analysis on Kerosene Oil-Based Two Groups of Ternary Hybrid Nanoparticles (CNT-Gr-Fe3O4 and MgO-Cu-Au) Mix Flow over a Bidirectional Stretching Sheet: A Comparative Approach","authors":"Shilpa Choudhary, R. Mehta, Nazeek Alessa, Sanju Jangid, M. Venkateswar Reddy","doi":"10.1155/2023/8828300","DOIUrl":"https://doi.org/10.1155/2023/8828300","url":null,"abstract":"The present work examines the impressions of radiation impact on the three-dimensional non-Newtonian MHD Casson flow of ternary hybrid nanofluids over a symmetrical stretching sheet with magnetic impression and heat generation/absorption. The unique boost in thermal efficiency and development of the rate of heat transport as valid to the dynamics of energy and coolant in automobiles is what has led to an increase in knowledge of hybrid nanofluid. For the study, two groups of ternary nanoparticles (CNT-Gr-Fe3O4 and MgO-Cu-Au) are combined with the base fluid kerosene oil. A nonlinear partial differential equation system is created while keeping in mind some reasonable presumptions. Using the similarities transformation, PDE’s are changed into nonlinear ODE’s. Also, it is then mathematically simplified with the bvp4c technique. The consequences of an exclusive group of unique impacts on motion characteristics, skin friction coefficient, thermal field impressions, heat transport rate, concentration distribution, and mass transfer rate are described clearly. The motion in the x and y directions decays with increasing the Casson fluid parameter 0.04 ≤ β ≤ 0.06 and magnetic impact 6 ≤ M ≤ 10 for ternary groups I and II. An energy upsurge profile appears for radiation impression (1 ≤ Nr ≤ 20) and heat source/sink (0.1 ≤ Q ≤ 1.5). When compared to rising Dufour number (0.1 ≤ Du ≤ 0.9) and heat source/sink values (0.1 ≤ Q ≤ 1.5), the Nusselt number decreases. The volume fraction 0.1 ≤ ϕ ≤ 0.3 of ternary nanoparticles rises the velocity (in both directions) and thermal distributions. Also, the Nusselt number enhances for both ternary groups when increasing thermal radiation (1 ≤ Nr ≤ 20).","PeriodicalId":15716,"journal":{"name":"Journal of Engineering","volume":"28 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139255967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy Calibration and Inverse-Square Law of Radiation in Gamma-Ray Measurement Using a Scintillation Detector for Laboratory Experiments 在实验室实验中使用闪烁探测器测量伽马射线时的能量校准和辐射反平方定律

IF 2.7

Journal of Engineering Pub Date : 2023-11-18 DOI: 10.1155/2023/6630739

Shiori Iida, Wei-Guo Jin

引用次数: 0

A Systematic Review on Potential Bio Leather Substitute for Natural Leather 生物革替代天然革的研究综述

Journal of Engineering Pub Date : 2023-11-13 DOI: 10.1155/2023/1629174

Girmaw Yeshanbel Kefale, Zerihun Teshome Kebede, Alehegn Atalay Birlie

引用次数: 0