Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0082
Bertha Mangallo, Aljon Sinaga, A. Sinery
This study aimed to analyze the concentration of %HSU (Heavy Smoke Unit) in the exhaust emissions of freight trucks in Manokwari Regency. It employed a quantitative research approach and utilized incidental sampling to select a total of 30 vehicles as samples. To examine the relationship between exhaust emissions and vehicle characteristics, linear regression analysis was employed. Out of the 14 vehicles (46.67%) that failed the emission test, only 2 (14.29%) were produced before 2010, while the production of the remaining 12 (85.76%) was after 2010. Simultaneously, Cylinder Capacity (X₁), Trip Length (X₂), Vehicle Age (X₃), and Vehicle Maintenance (X₄) influenced the %HSU value (Y). This was indicated by the very small p-value (0.000), where the mean differences between the groups were highly statistically significant. The results showed that the independent variables were mutually related and collectively have a significant impact on the %HSU value.
{"title":"Comprehensive assessment of environmental impacts: exhaust gas emissions from goods transport trucks in Manokwari regency and effective mitigation strategies","authors":"Bertha Mangallo, Aljon Sinaga, A. Sinery","doi":"10.30574/wjaets.2024.11.2.0082","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0082","url":null,"abstract":"This study aimed to analyze the concentration of %HSU (Heavy Smoke Unit) in the exhaust emissions of freight trucks in Manokwari Regency. It employed a quantitative research approach and utilized incidental sampling to select a total of 30 vehicles as samples. To examine the relationship between exhaust emissions and vehicle characteristics, linear regression analysis was employed. Out of the 14 vehicles (46.67%) that failed the emission test, only 2 (14.29%) were produced before 2010, while the production of the remaining 12 (85.76%) was after 2010. Simultaneously, Cylinder Capacity (X₁), Trip Length (X₂), Vehicle Age (X₃), and Vehicle Maintenance (X₄) influenced the %HSU value (Y). This was indicated by the very small p-value (0.000), where the mean differences between the groups were highly statistically significant. The results showed that the independent variables were mutually related and collectively have a significant impact on the %HSU value.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"19 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140362724","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}
Topological index is a numerical descriptor of a molecule; it is found that there is strong correlation between the proerties of chemical compounds and their molecular structure based on a specific topological feature of the corresponding molecular graph. In this paper, we introduce two new graph invariants known as the Multiplicative Y -index and Multiplicative S-index of a graph. We establish the upper bounds for the Multiplicative Y-index and Multiplicative S-index of the graph operations such as Join, Cartesian product, Composition, Tensor product, Strong product, Disjunction, Symmetric difference, Corona product, Corona join product and the indices are evaluated for some well-known graphs.
拓扑指数是分子的数字描述符；研究发现，基于相应分子图的特定拓扑特征，化合物的特性与其分子结构之间存在很强的相关性。在本文中，我们引入了两个新的图不变式，即图的乘法 Y 指数和乘法 S 指数。我们建立了图操作（如连接、笛卡尔积、合成、张量积、强积、析取、对称差、日冕积、日冕连接积）的乘法 Y 指数和乘法 S 指数的上界，并对一些著名的图进行了指数评估。
{"title":"Upper bounds for the multiplicative Y-index and S-index of some operations on graphs","authors":"Kayalvizhi Gokulathilagan, Nagarajan Sethumadhavan","doi":"10.30574/wjaets.2024.11.2.0100","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0100","url":null,"abstract":"Topological index is a numerical descriptor of a molecule; it is found that there is strong correlation between the proerties of chemical compounds and their molecular structure based on a specific topological feature of the corresponding molecular graph. In this paper, we introduce two new graph invariants known as the Multiplicative Y -index and Multiplicative S-index of a graph. We establish the upper bounds for the Multiplicative Y-index and Multiplicative S-index of the graph operations such as Join, Cartesian product, Composition, Tensor product, Strong product, Disjunction, Symmetric difference, Corona product, Corona join product and the indices are evaluated for some well-known graphs.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"35 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140364132","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}
Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0073
Benson Eze, Benjamin Eze Benson, Lawremce Hart
The dynamic nature of rivers and its effect on the inhabitants and its surroundings is of fundamental concern to Hydro Scientists, Coastal Engineers, and Surveyors. These changes have remained unpredicted and hence the focus of this study. The aim of this study is to develop a geo-model of the dynamics of Orashi River in Ogba/ Egbema/ Ndoni Local Government Area of Rivers State. The objectives are to determine the river dynamics parameters, to develop a functional multiple regression model of Orashi River dynamics and to determine the percentage contributions of each of the independent variables. This study was carried out using classical survey methods such as river current measurement, river cross-sectional area determination, river water discharge rate determination, bathymetric operation, runoff water computation, water gauge reading and conventional ground surveying. A multiple regression analysis was carried out using data obtained in 2013, 2015 and 2017 used as the independent variables while the river level changes is used as the dependent variable. The result of this study show changes in the river current and river discharge. The data analysis show the contribution of the independent variable to the dynamics of Orashi River for 2013 to be 24.83%, 30.63%, 20.24%, 0.33% and 24.97% for river current, runoff peak discharge, rainfall intensity, temperature and humidity respectively. The analysis was also carried out in 2015 & 2017and different results were obtained. A functional model of the dynamics of the changes in Orashi River was developed for 2013, 2015 and 2017 which can be used in monitoring the changes in Orashi River.
{"title":"Modeling of some hydrodynamics characteristics of Orashi River in the Southern Region of Nigeria","authors":"Benson Eze, Benjamin Eze Benson, Lawremce Hart","doi":"10.30574/wjaets.2024.11.2.0073","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0073","url":null,"abstract":"The dynamic nature of rivers and its effect on the inhabitants and its surroundings is of fundamental concern to Hydro Scientists, Coastal Engineers, and Surveyors. These changes have remained unpredicted and hence the focus of this study. The aim of this study is to develop a geo-model of the dynamics of Orashi River in Ogba/ Egbema/ Ndoni Local Government Area of Rivers State. The objectives are to determine the river dynamics parameters, to develop a functional multiple regression model of Orashi River dynamics and to determine the percentage contributions of each of the independent variables. This study was carried out using classical survey methods such as river current measurement, river cross-sectional area determination, river water discharge rate determination, bathymetric operation, runoff water computation, water gauge reading and conventional ground surveying. A multiple regression analysis was carried out using data obtained in 2013, 2015 and 2017 used as the independent variables while the river level changes is used as the dependent variable. The result of this study show changes in the river current and river discharge. The data analysis show the contribution of the independent variable to the dynamics of Orashi River for 2013 to be 24.83%, 30.63%, 20.24%, 0.33% and 24.97% for river current, runoff peak discharge, rainfall intensity, temperature and humidity respectively. The analysis was also carried out in 2015 & 2017and different results were obtained. A functional model of the dynamics of the changes in Orashi River was developed for 2013, 2015 and 2017 which can be used in monitoring the changes in Orashi River.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"18 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140361622","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}
Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0080
Subita Kumari
When users work with usual software tools they have to change their many valued logical thinking (approximate reasoning) into the two-valued computer logic. Although the Structured Query Language (SQL) is a very powerful tool, it is unable to satisfy needs for data selection based on linguistic expressions and degrees of truth. In this paper, we are interested in flexible querying that is based on fuzzy set theory. Medina et al. have developed a server named fuzzy SQL, supporting flexible queries and based on a theoretic model called GEFRED. To model the flexible queries and the concept of fuzzy attributes, an extension of the SQL language named fuzzy SQL has been defined. The FRDB is supposed to have already been defined by the user. In this paper, the work of medina et al. has been extended to implement a new architecture of fuzzy DBMS based on the GEFRED model. This architecture is based on the concept of weak coupling with the DBMS SQL Server.
{"title":"FRDBMS for imprecise queries based on GEFRED model","authors":"Subita Kumari","doi":"10.30574/wjaets.2024.11.2.0080","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0080","url":null,"abstract":"When users work with usual software tools they have to change their many valued logical thinking (approximate reasoning) into the two-valued computer logic. Although the Structured Query Language (SQL) is a very powerful tool, it is unable to satisfy needs for data selection based on linguistic expressions and degrees of truth. In this paper, we are interested in flexible querying that is based on fuzzy set theory. Medina et al. have developed a server named fuzzy SQL, supporting flexible queries and based on a theoretic model called GEFRED. To model the flexible queries and the concept of fuzzy attributes, an extension of the SQL language named fuzzy SQL has been defined. The FRDB is supposed to have already been defined by the user. In this paper, the work of medina et al. has been extended to implement a new architecture of fuzzy DBMS based on the GEFRED model. This architecture is based on the concept of weak coupling with the DBMS SQL Server.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"50 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140361679","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}
Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0077
Onyemachi Joshua, Ndubuisi, Gift Adene, Belonwu Tochukwu Sunday, Chinedu E. Mbonu, Adannaya Uneke Gift-Adene
In Nigeria, there are many different security concerns and thus crimes have increased despite the fact that there are stringent laws and punishments in place to deter them, making it appear as though the authorities are unable to stop it. In order to identify criminals and conduct investigations, it is imperative that a facial recognition system be connected to a constantly updated digital library. The focus of this paper is to develop an automatic criminal investigation system that can identify criminals based on their faces and produce real-time digital archives about them. However, as an object detection method and facial recognition model, the new system is built on the Haar Cascades Classifier technique in the OpenCV package. Additionally, appropriate programming languages that may provide the needed results were investigated. Python 3.6 was used with the Django 4.2 framework, OpenCV-Python, and Dlib for language execution. Due to Django's ORM, support for numerous databases, and usage of the SQLite3 database, a straightforward database was employed for lightweight applications. The 12 factor app idea was used to construct the DICA-FR system's essential skills. Face detection was applied to the image using the Haar method during processing, and during post-processing, the discovered face was compared with well-known criminal face encodings for matching purposes. Results demonstrated that DICA-FRS could effectively replace human systems since it can recover faces from the furthest distances, display the name of the offender, and sound an alert on the DICA web app's output screen. The DICA system is a working prototype of a system that might be used in the criminal investigative process in Nigeria.
在尼日利亚，存在着许多不同的安全问题，因此，尽管有严格的法律和惩罚措施来遏制犯罪，但犯罪活动却有增无减，使当局似乎无力制止。为了识别罪犯和开展调查，面部识别系统必须与不断更新的数字图书馆相连接。本文的重点是开发一种自动刑侦系统，该系统可以根据罪犯的面孔进行识别，并实时生成有关罪犯的数字档案。不过，作为一种对象检测方法和面部识别模型，新系统是基于 OpenCV 软件包中的 Haar Cascades 分类器技术构建的。此外，还研究了可提供所需结果的适当编程语言。Python 3.6 与 Django 4.2 框架、OpenCV-Python 和 Dlib 一起用于语言执行。由于 Django 的 ORM、对众多数据库的支持以及 SQLite3 数据库的使用，轻量级应用程序采用了直接的数据库。DICA-FR 系统的基本技能采用了 12 因子应用程序的理念。在处理过程中，使用 Haar 方法对图像进行人脸检测；在后处理过程中，将发现的人脸与著名的犯罪人脸编码进行比较，以实现匹配目的。结果表明，DICA-FRS 可以有效取代人工系统，因为它可以从最远距离恢复人脸，显示罪犯的姓名，并在 DICA 网络应用程序的输出屏幕上发出警报。DICA 系统是一个可用于尼日利亚刑事调查过程的工作系统原型。
{"title":"Digital Criminal Biometric Archives (DICA) and Public Facial Recognition System (FRS) for Nigerian criminal investigation using HAAR cascades classifier technique","authors":"Onyemachi Joshua, Ndubuisi, Gift Adene, Belonwu Tochukwu Sunday, Chinedu E. Mbonu, Adannaya Uneke Gift-Adene","doi":"10.30574/wjaets.2024.11.2.0077","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0077","url":null,"abstract":"In Nigeria, there are many different security concerns and thus crimes have increased despite the fact that there are stringent laws and punishments in place to deter them, making it appear as though the authorities are unable to stop it. In order to identify criminals and conduct investigations, it is imperative that a facial recognition system be connected to a constantly updated digital library. The focus of this paper is to develop an automatic criminal investigation system that can identify criminals based on their faces and produce real-time digital archives about them. However, as an object detection method and facial recognition model, the new system is built on the Haar Cascades Classifier technique in the OpenCV package. Additionally, appropriate programming languages that may provide the needed results were investigated. Python 3.6 was used with the Django 4.2 framework, OpenCV-Python, and Dlib for language execution. Due to Django's ORM, support for numerous databases, and usage of the SQLite3 database, a straightforward database was employed for lightweight applications. The 12 factor app idea was used to construct the DICA-FR system's essential skills. Face detection was applied to the image using the Haar method during processing, and during post-processing, the discovered face was compared with well-known criminal face encodings for matching purposes. Results demonstrated that DICA-FRS could effectively replace human systems since it can recover faces from the furthest distances, display the name of the offender, and sound an alert on the DICA web app's output screen. The DICA system is a working prototype of a system that might be used in the criminal investigative process in Nigeria.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"50 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140362941","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}
Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0094
R. Yenrina, C. R. Refdi, Dian Hafsari, Jihan Rahma
The research aimed to determine the effect of adding kandis extract as an acidifier to tomato puree and the best formulation based on organoleptic characteristics of tomato sauce. The research design used was a Completely Randomized Design (CRD) with 5 treatments and 3 replicates. In this research, kandis extract was added with treatments A (0%), B (3%), C (3.5%) D (4%), and E (4.5%) base on tomato puree weight. The results of each research parameter were analyzed statistically using Analysis of Variance (ANOVA) and if the effect was significantly different, it was continued with Duncan's New Multiple Range (DNMRT) analysis at the 5% level. The results showed that the addition of kandis had a significantly different effect on organoleptic taste and texture of tomato sauce. However, it did not have a significantly different effect on color, and aroma organoleptics. The best treatment for the addition of kandis extract based on organoleptic characteristics of tomato sauce is treatment D (addition of 4% kandis extract) with the criteria of organoleptic acceptance rate for color 4.00 (like), aroma 4.07 (like), texture 4.20 (like), and taste 4.43 (like).
{"title":"Organoleptic evaluation of tomato (Lycopersicum esculentum, Mill.) sauce with the addition of kandis (Garcinia cowa, Roxb.) acid extract as an acidifier","authors":"R. Yenrina, C. R. Refdi, Dian Hafsari, Jihan Rahma","doi":"10.30574/wjaets.2024.11.2.0094","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0094","url":null,"abstract":"The research aimed to determine the effect of adding kandis extract as an acidifier to tomato puree and the best formulation based on organoleptic characteristics of tomato sauce. The research design used was a Completely Randomized Design (CRD) with 5 treatments and 3 replicates. In this research, kandis extract was added with treatments A (0%), B (3%), C (3.5%) D (4%), and E (4.5%) base on tomato puree weight. The results of each research parameter were analyzed statistically using Analysis of Variance (ANOVA) and if the effect was significantly different, it was continued with Duncan's New Multiple Range (DNMRT) analysis at the 5% level. The results showed that the addition of kandis had a significantly different effect on organoleptic taste and texture of tomato sauce. However, it did not have a significantly different effect on color, and aroma organoleptics. The best treatment for the addition of kandis extract based on organoleptic characteristics of tomato sauce is treatment D (addition of 4% kandis extract) with the criteria of organoleptic acceptance rate for color 4.00 (like), aroma 4.07 (like), texture 4.20 (like), and taste 4.43 (like).","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"43 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140362992","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}
Pub Date : 2024-03-30DOI: 10.30574/wjaets.2024.11.2.0093
Oluwatosin Abiona, Oluwatayo Jacob Oladapo, Oluwole Temidayo Modupe, Oyekunle Claudius Oyeniran, Adebunmi Okechukwu Adewusi, Abiola Moshood Komolafe
The emergence of DevSecOps marks a significant paradigm shift in software development, focusing on integrating security practices seamlessly into the DevOps pipeline. This paper explores the evolution, principles, and importance of DevSecOps in contemporary software engineering. DevSecOps arises from the recognition that traditional security measures often lag behind the rapid pace of DevOps development cycles, leading to vulnerabilities and breaches. By integrating security early and continuously throughout the software development lifecycle, DevSecOps aims to proactively identify and mitigate risks without impeding the agility and speed of DevOps practices. This paper delves into the core principles of DevSecOps, emphasizing automation, collaboration, and cultural transformation. Automation streamlines security processes, enabling the automated testing and validation of code for vulnerabilities. Collaboration fosters communication and shared responsibility among developers, operations, and security teams, breaking down silos and promoting a collective approach to security. Cultural transformation involves cultivating a security-first mindset across the organization, where security is not an afterthought but an inherent part of the development process. The importance of DevSecOps cannot be overstated in today's digital landscape, where cyber threats are omnipresent and the cost of security breaches is staggering. By integrating security into every stage of the DevOps pipeline, organizations can enhance their resilience to cyber attacks, comply with regulatory requirements, and build trust with customers. DevSecOps represents a holistic approach to software development that prioritizes security without compromising speed or innovation. Embracing DevSecOps principles is imperative for organizations seeking to stay ahead in an increasingly complex and hostile digital environment.
{"title":"The emergence and importance of DevSecOps: Integrating and reviewing security practices within the DevOps pipeline","authors":"Oluwatosin Abiona, Oluwatayo Jacob Oladapo, Oluwole Temidayo Modupe, Oyekunle Claudius Oyeniran, Adebunmi Okechukwu Adewusi, Abiola Moshood Komolafe","doi":"10.30574/wjaets.2024.11.2.0093","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0093","url":null,"abstract":"The emergence of DevSecOps marks a significant paradigm shift in software development, focusing on integrating security practices seamlessly into the DevOps pipeline. This paper explores the evolution, principles, and importance of DevSecOps in contemporary software engineering. DevSecOps arises from the recognition that traditional security measures often lag behind the rapid pace of DevOps development cycles, leading to vulnerabilities and breaches. By integrating security early and continuously throughout the software development lifecycle, DevSecOps aims to proactively identify and mitigate risks without impeding the agility and speed of DevOps practices. This paper delves into the core principles of DevSecOps, emphasizing automation, collaboration, and cultural transformation. Automation streamlines security processes, enabling the automated testing and validation of code for vulnerabilities. Collaboration fosters communication and shared responsibility among developers, operations, and security teams, breaking down silos and promoting a collective approach to security. Cultural transformation involves cultivating a security-first mindset across the organization, where security is not an afterthought but an inherent part of the development process. The importance of DevSecOps cannot be overstated in today's digital landscape, where cyber threats are omnipresent and the cost of security breaches is staggering. By integrating security into every stage of the DevOps pipeline, organizations can enhance their resilience to cyber attacks, comply with regulatory requirements, and build trust with customers. DevSecOps represents a holistic approach to software development that prioritizes security without compromising speed or innovation. Embracing DevSecOps principles is imperative for organizations seeking to stay ahead in an increasingly complex and hostile digital environment.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"50 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140361515","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}
This paper presents a comprehensive study on the simulation and analysis of the loss of sleeper-ballast interfaces in railway systems. Through a combination of Multibody Dynamics (MBD) and Finite Element Analysis (FEA) techniques, accurate modeling and validation processes were employed to investigate the impact of interface loss on wheel-rail impact load. Various scenarios were explored, revealing significant findings: for fewer than 4 sleeper-ballast interface losses, a notable 30% increase in wheel-rail impact load was observed, while the rate of increase in wheel-rail impact load diminished for more than 4 sleepers. Furthermore, gap size emerged as a critical factor, with sizes between 0.2 mm and 1.6 mm leading to a load increase exceeding 65%. The study also highlighted the substantial influence of train speed on load dynamics, particularly evident at speeds up to 200 km/h, where loads escalated significantly, resulting in a 180% increase under adverse conditions. These findings emphasize the importance of considering various factors in maintaining railway infrastructure integrity and safety.
{"title":"Wheel-rail impact load due to the loss of sleeper-ballast interface","authors":"Mahsa Farshidi, Yazdan Mohammadian, Jafar Hosseini Manoujan","doi":"10.30574/wjaets.2024.11.2.0095","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.2.0095","url":null,"abstract":"This paper presents a comprehensive study on the simulation and analysis of the loss of sleeper-ballast interfaces in railway systems. Through a combination of Multibody Dynamics (MBD) and Finite Element Analysis (FEA) techniques, accurate modeling and validation processes were employed to investigate the impact of interface loss on wheel-rail impact load. Various scenarios were explored, revealing significant findings: for fewer than 4 sleeper-ballast interface losses, a notable 30% increase in wheel-rail impact load was observed, while the rate of increase in wheel-rail impact load diminished for more than 4 sleepers. Furthermore, gap size emerged as a critical factor, with sizes between 0.2 mm and 1.6 mm leading to a load increase exceeding 65%. The study also highlighted the substantial influence of train speed on load dynamics, particularly evident at speeds up to 200 km/h, where loads escalated significantly, resulting in a 180% increase under adverse conditions. These findings emphasize the importance of considering various factors in maintaining railway infrastructure integrity and safety.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"13 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140362375","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}
Pub Date : 2024-02-28DOI: 10.30574/wjaets.2024.11.1.0043
Mahmuda Khatun, Shuranjan Sarkar, Mohammad Abdus Salam Khan, Ariful Islam, Asib Iqbal
Jute and cotton, both being natural cellulosic fibers, can be blended together to create a sustainable fabric that offers a new addition to the market. In this particular study, the focus was on investigating the fastness properties of jute-cotton blended pigment printed fabric. Fastness properties are crucial for any colored fabric, including jute-cotton blended ones, as they determine the fabric's ability to retain its color and resist any changes caused by external factors. The study examined the rubbing fastness of five different jute-cotton blended pigment printed fabrics. Rubbing fastness refers to the fabric's resistance to color staining and color change when subjected to rubbing or friction. The results of the rubbing fastness tests were evaluated on a grey scale, and they ranged between 3 and 5, indicating varying degrees of staining and color change. Additionally, other important parameters such as Ends per Inch, Picks per Inch, Gram per Square Meter (GSM), and air permeability were measured for the jute-cotton blended pigment printed fabric samples. Ends per Inch and Picks per Inch refer to the number of warp and weft threads per inch, respectively, and they contribute to the fabric's overall density and strength. The GSM, which measures the weight of the fabric per square meter, ranged between 191 and 285 for the samples. Furthermore, the air permeability, which indicates the fabric's breathability, ranged from 614 m3/m2/h to 1628 m3/m2/h.
{"title":"Investigating the properties of rubbing fastness in jute-cotton blended pigment-printed fabric","authors":"Mahmuda Khatun, Shuranjan Sarkar, Mohammad Abdus Salam Khan, Ariful Islam, Asib Iqbal","doi":"10.30574/wjaets.2024.11.1.0043","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.1.0043","url":null,"abstract":"Jute and cotton, both being natural cellulosic fibers, can be blended together to create a sustainable fabric that offers a new addition to the market. In this particular study, the focus was on investigating the fastness properties of jute-cotton blended pigment printed fabric. Fastness properties are crucial for any colored fabric, including jute-cotton blended ones, as they determine the fabric's ability to retain its color and resist any changes caused by external factors. The study examined the rubbing fastness of five different jute-cotton blended pigment printed fabrics. Rubbing fastness refers to the fabric's resistance to color staining and color change when subjected to rubbing or friction. The results of the rubbing fastness tests were evaluated on a grey scale, and they ranged between 3 and 5, indicating varying degrees of staining and color change. Additionally, other important parameters such as Ends per Inch, Picks per Inch, Gram per Square Meter (GSM), and air permeability were measured for the jute-cotton blended pigment printed fabric samples. Ends per Inch and Picks per Inch refer to the number of warp and weft threads per inch, respectively, and they contribute to the fabric's overall density and strength. The GSM, which measures the weight of the fabric per square meter, ranged between 191 and 285 for the samples. Furthermore, the air permeability, which indicates the fabric's breathability, ranged from 614 m3/m2/h to 1628 m3/m2/h.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"246 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417609","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}
Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability explores the evolving landscape of green computing within the realm of software development, emphasizing the imperative for environmentally sustainable practices. In response to escalating environmental concerns, the computing industry is undergoing a paradigm shift towards reducing its carbon footprint and mitigating ecological impacts. This shift is particularly crucial in software development, given its pervasive influence on technological ecosystems. The review delves into the multifaceted dimensions of green computing, elucidating various practices and strategies that are instrumental in fostering environmental sustainability. From optimizing code efficiency to embracing energy-efficient computing architectures, the review underscores the diverse approaches available to software developers in minimizing resource consumption and carbon emissions. Furthermore, it examines the broader ramifications of these practices, emphasizing their potential to reshape the software industry's ecological footprint and contribute to global efforts for environmental conservation. Moreover, the review highlights the symbiotic relationship between green computing and modern software development methodologies. It elucidates how principles such as agile development and DevOps can be synergistically integrated with green computing practices to enhance sustainability throughout the software development lifecycle. By adopting an interdisciplinary approach that integrates environmental considerations into software design, development, and deployment processes, organizations can catalyze transformative changes towards a greener computing ecosystem. The review also investigates the tangible impact of green computing practices on environmental sustainability metrics. Through case studies and empirical analyses, it showcases the efficacy of various strategies in reducing energy consumption, carbon emissions, and electronic waste generation. Additionally, it discusses the economic and societal benefits accrued from adopting environmentally sustainable practices, ranging from cost savings to enhanced corporate social responsibility. Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability provides a comprehensive overview of the evolving landscape of green computing within the context of software development. It elucidates the myriad opportunities and challenges associated with fostering environmental sustainability in the computing industry and underscores the transformative potential of integrating green computing principles into modern software development practices.
{"title":"Advancing green computing: Practices, strategies, and impact in modern software development for environmental sustainability","authors":"Enoch Oluwademilade Sodiya, Akoh Atadoga, Uchenna Joseph Umoga, Oluwaseun Augustine Lottu","doi":"10.30574/wjaets.2024.11.1.0052","DOIUrl":"https://doi.org/10.30574/wjaets.2024.11.1.0052","url":null,"abstract":"Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability explores the evolving landscape of green computing within the realm of software development, emphasizing the imperative for environmentally sustainable practices. In response to escalating environmental concerns, the computing industry is undergoing a paradigm shift towards reducing its carbon footprint and mitigating ecological impacts. This shift is particularly crucial in software development, given its pervasive influence on technological ecosystems. The review delves into the multifaceted dimensions of green computing, elucidating various practices and strategies that are instrumental in fostering environmental sustainability. From optimizing code efficiency to embracing energy-efficient computing architectures, the review underscores the diverse approaches available to software developers in minimizing resource consumption and carbon emissions. Furthermore, it examines the broader ramifications of these practices, emphasizing their potential to reshape the software industry's ecological footprint and contribute to global efforts for environmental conservation. Moreover, the review highlights the symbiotic relationship between green computing and modern software development methodologies. It elucidates how principles such as agile development and DevOps can be synergistically integrated with green computing practices to enhance sustainability throughout the software development lifecycle. By adopting an interdisciplinary approach that integrates environmental considerations into software design, development, and deployment processes, organizations can catalyze transformative changes towards a greener computing ecosystem. The review also investigates the tangible impact of green computing practices on environmental sustainability metrics. Through case studies and empirical analyses, it showcases the efficacy of various strategies in reducing energy consumption, carbon emissions, and electronic waste generation. Additionally, it discusses the economic and societal benefits accrued from adopting environmentally sustainable practices, ranging from cost savings to enhanced corporate social responsibility. Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability provides a comprehensive overview of the evolving landscape of green computing within the context of software development. It elucidates the myriad opportunities and challenges associated with fostering environmental sustainability in the computing industry and underscores the transformative potential of integrating green computing principles into modern software development practices.","PeriodicalId":275182,"journal":{"name":"World Journal of Advanced Engineering Technology and Sciences","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417667","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}
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