Journal of Civil Engineering Research & Technology最新文献

{"title":"Traffic Congestion in Mogadishu City Causes and Solutions","authors":"Abdidahir Hassan Mohamud","doi":"10.47363/jcert/2023(5)145","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)145","url":null,"abstract":"The objective of this study is to identify factors that are responsible for obstructing smooth traffic flow and increasing traffic congestion in Mogadishu City- Somalia. Research design of this study included collection of primary data from personal observation by traveling in Mogadishu city.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116741420","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}

{"title":"An Overview of Non-Point Source Pollution Modeling: Current Status and Future Prospect","authors":"Hossein Ahmadi","doi":"10.47363/jcert/2023(5)140","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)140","url":null,"abstract":"Non-point source (NPS) pollution control is an increasingly important topic in aquatic environment protection due to its significant adverse effect on water quality. Characterizing NPS pollution loads is crucial for preparing BMPs to improve water quality and protect the aquatic ecosystem. Modeling tools are commonly used for simulating NPS pollution in watersheds; however, the modeling process contains uncertainties and complications, which makes the prediction of NPS pollution loads challenging and complicated. To deal with this issue, significant progress has been made to address NPS pollution modeling problems in the past few decades. The current study reviews different approaches being used for NPS pollution modeling. In this context, the main methods in NPS modeling are described and classified into three categories. 1. Empirical models, 2. Physically based models, and 3. Simulation based optimization models. The present study contributes to fulfilling the gaps in the classification of NPS pollution modeling approaches and highlights the advantages and drawbacks of each approach in order to set a standard for choosing a proper simulation tool for estimating NPS pollution loads based on the limitations and requirements of the understudy circumstance","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132689944","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}

{"title":"Evolution of the Climate of the Earth","authors":"S. Harris","doi":"10.47363/jcert/2023(5)141","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)141","url":null,"abstract":"","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"13 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125760119","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}

{"title":"Application of Remote Sensing to Study Tropical Cyclones/ Hurricane Energetic to Develop Tropical Cyclone/Hurricane Forecasting Models (TCFM/HFM) Through Morphological and Dynamical Properties of Meso-Scale Convective Systems","authors":"Virendra Goswami","doi":"10.47363/jcert/2023(5)142","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)142","url":null,"abstract":"The present Tropical Cyclones/Hurricane Weather Research and Forecast (TCFM/HWRF) system is capable to forecast the inner core structure of the Tropical Cyclones/Hurricanes out to 5 days. Hence, efforts are to be made to test, evaluate, and improve predictions of Hurricane’s track(motion), intensity, speed, and inner core Structure, beyond 5 days ,through the study of Hurricane energetic in correlation with dynamical fluid motions and physical features (e.g. radiative transfer, chemistry, cloud processes), of meso-scale NH-SH Convective systems in order to develop a unique Tropical Cyclone/Hurricane Forecast Models (TCFM/HFM), acting as an Operational real-time forecast guidance for all global tropical cyclones/hurricanes across the Atlantic, Asia Pacific, North Indian Ocean and Southern Hemisphere ocean basins.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116056414","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}

{"title":"Final Results Regarding the Measurement of RN-222 in Indoor Air at Nimrd Constanta During 2018-2019","authors":"V. Patrascu","doi":"10.47363/jcert/2023(5)144","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)144","url":null,"abstract":"","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128333815","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}

{"title":"The Critical Review of the Efficacy of the Environmental Impact Assessment (EIA) Process as A Tool Intended to Protect the Environment from Construction/ Development's Hazards","authors":"H. Nadir, Ash Ahmed","doi":"10.47363/jcert/2023(5)143","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)143","url":null,"abstract":"The developed countries have been doing extraordinary marvels in science, technology and construction with a desire to tame nature coherently. This domination desire has negatively/ irreversibly impacted the environment. However, after generating enormous challenges to nature through uncontrolled developments, the developed countries started endeavouring to save the environment from the devastating impacts of construction projects at the end of the 20th century by incorporating the environmental impact assessment (EIA). EIA is the process of identifying, evaluating, and mitigating development projects' damaging environmental and social effects. In the last 25 years, EIA has developed into a mature system and is an effective tool for assessing, minimising and mitigating severe impacts of development projects on the environment. EIA is only an assessment tool to ascertain the damaging effects of projects on the environment and alternative proposals for their mitigation; however, the final decision rests with political authorities who may consider the EIA report or turn it down in the name of better interests of society/country. Unfortunately, EIA has not proved to be a fully effective process as the developed countries are still undertaking unobstructed/ unopposed mega development projects best conforming to their better interests, and developing countries are still far behind in the apprehension of the necessity of EIA. However, with the UN, USA and EU efforts, more than 120 countries have pledged to exercise EIA to assess development projects before their commencement. In this study, an endeavour has been made to review the necessity/ objectives of EIA, its historical evolutionary process, internationally recognised legal obligations, the stages of the EIA process based on the nature of projects, constraints/ pros and cons of the implementation of EIA process and efficacy of EIA as an intended tool to save the environment from the hazards of mega projects duly supported by three case studies of international projects in USA, Sweden and Pakistan.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131756566","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}

{"title":"Study The Effects Of Various Wind Loadings In High Rise Rc-Framed Structures In Zone –V","authors":"BD Yadav, Nilesh Choudhary","doi":"10.47363/jcert/2023(5)139","DOIUrl":"https://doi.org/10.47363/jcert/2023(5)139","url":null,"abstract":"The construction of high-rise buildings, both residential and commercial, is increasing. Every structural designer must be aware of the forces such as earthquake and wind effects. Every engineer is challenged to provide stability and strength for loads such as lateral forces (wind and seismic loading). That is why wind loading has become one of the most important issues in high-rise buildings. Lateral loads are crucial for drift; therefore, drift must be considered for high-rise structures. This research work focuses on the effects of various wind loads on high-rise structures with the provision suggested in IS 875(part 3):2015 and for seismic load using IS code 1893(part1):2016. For the study, four irregular plan building is used with G+20 story in seismic zone V and terrain category II with a basic wind speed of 44, 47, 50, and 55 m/s that is analyzed and designed using the structural analysis software tool STAAD Pro. The bending moment, shear forces, story displacements, story shear, and story drift are analyzed on every level of height on the building, and the results are compared with them.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124488474","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}

{"title":"Design and Application of Self-consolidating Concrete in Nigeria: A Review Paper","authors":"B. T. A, Olutoge F A","doi":"10.47363/jcert/2022(4)137","DOIUrl":"https://doi.org/10.47363/jcert/2022(4)137","url":null,"abstract":"The design and application of Self-Consolidating Concrete (SCC) is limited in building and civil engineering projects in Nigeria due to the absence of self-consolidating concrete manufacturers, limited availability of some raw materials such as limestone powder, silica fume, air entrainment, metakaolin, and high cost of synthetic cementitious materials [1]. However, review of literatures revealed the potentials of locally available cementitious materials in improving the properties of universal concrete but its inclusion in SCC design has not been fully explored. The advantages of using Self-Consolidating Concrete (SCC) is not only limited to its durability but also prominent for mitigating problems of poor segregation, consolidation and homogeneity in congested reinforced concrete structures. Hence, this research reviewed various designs of SCC in Nigeria to enhance the existing knowledge and to create awareness about innovative methods of concrete design and possible areas of applications self-consolidating concrete in Nigeria construction industry. The findings from reviews indicated that lack of awareness, limited research data and instrumentation on SSC production has been the major setback in it applications in Nigeria. Conclusively, Nigeria Construction industry as one of largest sector of economy can benefit from the global market growth of self-consolidating concrete through its design and application.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129965899","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}

{"title":"Study on Labour Safety for Construction Companies in Mogadishu, Somalia","authors":"Mohamed Mohamed, Yasin Ahmed Addow","doi":"10.47363/jcert/2022(4)138","DOIUrl":"https://doi.org/10.47363/jcert/2022(4)138","url":null,"abstract":"In Somalia, one of the main economic sectors is construction. The construction industry has had tremendous expansion globally, especially in the previous ten years. Building safe structures and giving workers a safe workplace is essential for a successful construction business. As a result, managing safety is crucial to the success of construction projects. Safety must be a priority from the beginning of the design process all the way through to the owner receiving the facilities. The majority of the workforce in the construction business, which employs a sizable workforce, are laborers and skilled workers. The study goals are to find obstacles to implementing construction safety, identify the main factors that contribute to accidents on projects undertaken by construction companies, and examine the contribution of construction safety practices to the incidence reduction in the workplace on such projects. The study's descriptive design was used. 70 employees of construction enterprises made up the study's population. To choose the respondents of the research, a purposeful selection technique was utilized. the study has 59 people as its sample size. The surveys made it easier to gather the primary data that was utilized. To get at the results, a quantitative research strategy was used. The study used SPSS, version 20, to do panel data analysis. The study's findings show that 34 (58%) of the respondents strongly agree with the researchers' recommendation that managers of construction companies should provide their workers with safety gear in order to improve the efficiency of those businesses. To reduce risk and accidents on the job site, construction company managers should encourage safety among their staff.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122991761","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}

{"title":"Corrosion and Corrosion Protection of Copper Sculptures by Formation of Composite Barrier","authors":"Rajesh Kumar Singh, K. Hema","doi":"10.47363/jcert/2022(4)136","DOIUrl":"https://doi.org/10.47363/jcert/2022(4)136","url":null,"abstract":"Nitrogen dioxide, carbon dioxide and sulphur dioxide are acidic gas and they produce corrosive medium for copper sculptures. These gases absorb moisture to form nitric acid, carbonic and sulphuric acid. It forms corrosion cell on the surface of copper and accelerate corrosion reactions. The corrosion cell formation is written as: Cu|Cu2+||H+|H2 thus corrosion reactions start and copper is oxidized into Cu2+surface and it is oxidized into Cu2+ whereas H+ ion is reduced into H2 . Nitric acid environment copper exhibits galvanic, pitting, stress, crevice, blistering, embrittlement and intergranular corrosion. The corrosion reactions change physical, chemical and mechanical properties of corroded materials. Nanocoating compound tetrahydrodibenzo[a,d][7]annulene-5,11-disemicarbazone and SiC electrospray compounds used to control the corrosion of copper in nitrogen dioxide medium. For corrosion mitigation of copper metal interface was coated with tetrahydro-dibenzo[a,d][7]annulene-5,11-disemicarbazone and SiC. The coating compound tetrahydro-dibenzo[a,d][7]annulene-5,11-disemicarbazone was synthesized in laboratory. Nozzle spray techniques used for nanocoating and electrospraying. The corrosion rate of copper was determined by gravimetric loss method at different temperatures, concentrations and days in nitrogen dioxide medium. Potentiostatic polarization technique used for the determination of electrode potential, corrosion current and current density. Nanocoating and electrospraying compounds formed a composite barrier on the surface of base metal by chemical bonding. The nanocoating and electrospray compounds adhered on base metal by chemisorptions to confirm by activation energy, heat of adsorption, free energy, enthalpy and entropy. The nanocoating and electrospray deposited on copper confirmed by Langmuir, Frundlich and Temkin isotherm. Copper formed a complex compound to interact with tetrahydro-dibenzo[a,d][7]annulene-5,11-disemicarbazone and SiC. Electrospraying SiC blocked porosities of nanocoating compound and checked osmosis process of nitrogen dioxide. Thenanocoating and electrospray compounds decreased corrosion rate and increased surface coverage areas and percentage coating efficiencies.","PeriodicalId":210581,"journal":{"name":"Journal of Civil Engineering Research & Technology","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126932045","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}