Pub Date : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-02
G. Sree Lakshmi, S. Naveen Kumar
This paper gives a comparative analysis of different types of Multilevel Inverters with T-Type inverters. The principal aim of the work is to analyse the T-type multilevel inverter operation with different multilevel inverters such as DiodeClamped Multilevel Inverter, Flying Capacitor Multilevel Inverter and Cascaded H-bridge Multilevel Inverter. All the inverters are compared and their advantages, disadvantages and usages are specified. The inverter used in our work runs on the multilayer bidirectional DC-DC converter. This can be used in Renewable Energy Sources and Electric Vehicle applications. The proposed design includes two power switches with an additional capacitor to balance the currents of the multilayer T-type (MLI) capacitor during an entire drive pattern or fault circumstances. In this design, the big capacitors being electrolytic in T-type Multilevel Inverter has been exchanged with longer-lasting film capacitors due to the highfrequency cycle-by-cycle current security between CN and CP. The converter’s dimensions and weight would be lowered by 20% because of this topology, as the number of switches and the capacitors used for balancing is reduced in this proposed design. The simulation analysis for five-level conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing is done. The line-to-line voltages, line currents, phase voltages, three-phase voltages, and voltage total harmonic distortions are compared for conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing. The simulation results shows that the proposed T-type inverter gives better performance compared to conventional T-type multilevel inverter.
{"title":"Comparison of Multilevel Inverters with T-type MLI: A Brief Review","authors":"G. Sree Lakshmi, S. Naveen Kumar","doi":"10.17576/jkukm-2023-35(4)-02","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-02","url":null,"abstract":"This paper gives a comparative analysis of different types of Multilevel Inverters with T-Type inverters. The principal aim of the work is to analyse the T-type multilevel inverter operation with different multilevel inverters such as DiodeClamped Multilevel Inverter, Flying Capacitor Multilevel Inverter and Cascaded H-bridge Multilevel Inverter. All the inverters are compared and their advantages, disadvantages and usages are specified. The inverter used in our work runs on the multilayer bidirectional DC-DC converter. This can be used in Renewable Energy Sources and Electric Vehicle applications. The proposed design includes two power switches with an additional capacitor to balance the currents of the multilayer T-type (MLI) capacitor during an entire drive pattern or fault circumstances. In this design, the big capacitors being electrolytic in T-type Multilevel Inverter has been exchanged with longer-lasting film capacitors due to the highfrequency cycle-by-cycle current security between CN and CP. The converter’s dimensions and weight would be lowered by 20% because of this topology, as the number of switches and the capacitors used for balancing is reduced in this proposed design. The simulation analysis for five-level conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing is done. The line-to-line voltages, line currents, phase voltages, three-phase voltages, and voltage total harmonic distortions are compared for conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing. The simulation results shows that the proposed T-type inverter gives better performance compared to conventional T-type multilevel inverter.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398606","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-06
Muhammad Faiz Bukhori, Muhammad Farihan Irfan Mohd Nor, Abdul Halim Ismail
Classroom communication is a very important and complex aspect in teaching and learning. The complexity of a communication process is attributed to a host of components that include the participants, messages, encoding, decoding, and transmission channels. Not much is currently known concerning classroom communication in the context of engineering education in Malaysian universities. This paper evaluates classroom communication of final-year students of the Electrical and Electronic engineering degree programs at Universiti Kebangsaan Malaysia. Four important aspects of classroom communication were investigated to understand student abilities and issues in classroom communication. One hundred and four students undertook the self-administered survey, yielding a response rate of 92.8%. The majority of the students exhibited good non-verbal communication practices, and scored favourably in the aspect of adapting the way they communicate to others. However, 42.3% of the respondents seemed to have difficulties to explain and express ideas confidently via classroom presentations. Additionally, 43 students (41.3%) appeared to be handicapped in participating actively in class discussions. Finally, at least 40 respondents (38.5%) reported difficulties to express ideas in English, but not to the extent of hindering them in participating in classroom discussions. Further studies are needed to uncover classroom communication issues in student learning among engineering students at Universiti Kebangsaan Malaysia.
{"title":"Evaluating Final-Year Student Classroom Communication at the Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia","authors":"Muhammad Faiz Bukhori, Muhammad Farihan Irfan Mohd Nor, Abdul Halim Ismail","doi":"10.17576/jkukm-2023-35(4)-06","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-06","url":null,"abstract":"Classroom communication is a very important and complex aspect in teaching and learning. The complexity of a communication process is attributed to a host of components that include the participants, messages, encoding, decoding, and transmission channels. Not much is currently known concerning classroom communication in the context of engineering education in Malaysian universities. This paper evaluates classroom communication of final-year students of the Electrical and Electronic engineering degree programs at Universiti Kebangsaan Malaysia. Four important aspects of classroom communication were investigated to understand student abilities and issues in classroom communication. One hundred and four students undertook the self-administered survey, yielding a response rate of 92.8%. The majority of the students exhibited good non-verbal communication practices, and scored favourably in the aspect of adapting the way they communicate to others. However, 42.3% of the respondents seemed to have difficulties to explain and express ideas confidently via classroom presentations. Additionally, 43 students (41.3%) appeared to be handicapped in participating actively in class discussions. Finally, at least 40 respondents (38.5%) reported difficulties to express ideas in English, but not to the extent of hindering them in participating in classroom discussions. Further studies are needed to uncover classroom communication issues in student learning among engineering students at Universiti Kebangsaan Malaysia.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398607","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-08
Rodzidah Mohd Rodzi, Noor Ezlin Ahmad Basri, Zulkifli Mohd Nopiah
Engineering translations are dense with technical jargon and terms that necessitate linguistic and field expertise. The challenges arise from the requirement that the target texts be idiomatic and retain the same phrasing order, meaning, and nuances as the source text, which a layperson cannot translate directly. The Malay language is Malaysia’s official language. Because Malay is the official language in the governing and executive constitutions, the research instrument should be available in Malay. The purpose of this research is to translate from English to Malay a qualitative risk framework for solid waste engineering. On three psychometric scales, 26 items were translated using a back-translation method involving eight linguistic experts. The Malaysian Institute of Translation and Books (ITBM) provided the primary translation, which was then reviewed by a panel of experts as a secondary translation. Next, content validation on a 5-point Likert scale was conducted with five civil engineering field experts to assess instrument structure and reliability agreement. To represent the expert validation process, a descriptive analysis of mean score agreement was performed. The studies discovered deviation losses in forward (8.98%) and backward (17.95%) translation. The results also revealed experts produce accurate translations, particularly the equivalents of engineering expressions, acronyms, measurements, and terminology. Eventually, expert consensus on six aspects was achieved for 27.8/30 (92.7%) and affirmed that the framework is valid and thus applicable. This paper recommends that translation requires quality control, which comprises three processes: conversion to the target language, comparison, and reconciliation by subject matter experts.
{"title":"Language Translation from English to Malay in Solid Waste Engineering","authors":"Rodzidah Mohd Rodzi, Noor Ezlin Ahmad Basri, Zulkifli Mohd Nopiah","doi":"10.17576/jkukm-2023-35(4)-08","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-08","url":null,"abstract":"Engineering translations are dense with technical jargon and terms that necessitate linguistic and field expertise. The challenges arise from the requirement that the target texts be idiomatic and retain the same phrasing order, meaning, and nuances as the source text, which a layperson cannot translate directly. The Malay language is Malaysia’s official language. Because Malay is the official language in the governing and executive constitutions, the research instrument should be available in Malay. The purpose of this research is to translate from English to Malay a qualitative risk framework for solid waste engineering. On three psychometric scales, 26 items were translated using a back-translation method involving eight linguistic experts. The Malaysian Institute of Translation and Books (ITBM) provided the primary translation, which was then reviewed by a panel of experts as a secondary translation. Next, content validation on a 5-point Likert scale was conducted with five civil engineering field experts to assess instrument structure and reliability agreement. To represent the expert validation process, a descriptive analysis of mean score agreement was performed. The studies discovered deviation losses in forward (8.98%) and backward (17.95%) translation. The results also revealed experts produce accurate translations, particularly the equivalents of engineering expressions, acronyms, measurements, and terminology. Eventually, expert consensus on six aspects was achieved for 27.8/30 (92.7%) and affirmed that the framework is valid and thus applicable. This paper recommends that translation requires quality control, which comprises three processes: conversion to the target language, comparison, and reconciliation by subject matter experts.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398614","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-18
Kim Ho Yeap, Hui Hang Hai, Soon Han Wai
Navigation applications such as Google Maps and Waze fail to function at global positioning system (GPS) denied environments. This is typically the primary problem faced by mountain hikers who have lost their way in a dense forest or a dementia patient who has lost his/her way. Navigation applications fail to function at places without internet signal. Also, a dementia patient may not be able to recall his original destination, rendering the GPS useless.The development of a path tracking system which does not rely on GPS is therefore necessary in such a situation. The system should be capable of guiding a person to return back to his/her original starting point without the requirement of a GPS. In this paper, we present the development of a path tracking system which exploits the inertial measurement unit embedded in a mobile phone. Doing so, the use of the GPS can be evaded. The system that we have developed consists of 3 main functions, i.e. (i) path recording, (ii) path navigation, and (iii) map generation. An SQLite database is setup in this application for storing data. Java libraries such as GraphView and Canvas are implemented to perform observation on the data obtained from the sensors and also to map the route according to the data stored into the device. The validation results show that the accuracy of the system is beyond 90%. The results convincingly corroborate the reliability and feasibility of the system.
{"title":"Development of a Path Tracking System for GPS Denied Environment","authors":"Kim Ho Yeap, Hui Hang Hai, Soon Han Wai","doi":"10.17576/jkukm-2023-35(4)-18","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-18","url":null,"abstract":"Navigation applications such as Google Maps and Waze fail to function at global positioning system (GPS) denied environments. This is typically the primary problem faced by mountain hikers who have lost their way in a dense forest or a dementia patient who has lost his/her way. Navigation applications fail to function at places without internet signal. Also, a dementia patient may not be able to recall his original destination, rendering the GPS useless.The development of a path tracking system which does not rely on GPS is therefore necessary in such a situation. The system should be capable of guiding a person to return back to his/her original starting point without the requirement of a GPS. In this paper, we present the development of a path tracking system which exploits the inertial measurement unit embedded in a mobile phone. Doing so, the use of the GPS can be evaded. The system that we have developed consists of 3 main functions, i.e. (i) path recording, (ii) path navigation, and (iii) map generation. An SQLite database is setup in this application for storing data. Java libraries such as GraphView and Canvas are implemented to perform observation on the data obtained from the sensors and also to map the route according to the data stored into the device. The validation results show that the accuracy of the system is beyond 90%. The results convincingly corroborate the reliability and feasibility of the system.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398862","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-13
Mastura Bujang, Nisa ‘Aqila Bakie, Ummi Humaira Bujang, Lee Siaw Kian, Euniza Anak Jusli, Wan Nur Aifa Wan Azahar
In order to reduce energy and natural resource consumption during road construction, the sustainability concept needs to be seriously addressed. Oil Palm Fruit Ash (OPFA) is one of the by-products of palm oil production that are typically disposed of in landfills as a result of the growing number of plantations in Malaysia, particularly in Sarawak. Due to the fact that OPFA is known as biomass with pozzolanic qualities (siliceous material), this study was carried out to examine the applicability of OPFA with varying concentrations (0% - 40%) by weight as a modifier in bitumen grade 60/70. Based on the results of the laboratory testing, it was discovered that the modified bitumen provided greater resistance to rutting, temperature, and skid resistance on the bituminous mixture (AC20) compared to the control sample. The 40% OPFA modified samples had the greatest resilient modulus test value, measuring 10992 MPa at 25 °C and 2936 MPa at 40 °C, respectively. In addition, the combination containing 40% OPFA produced the lowest deformation value in the dynamic creep test, which was only 0.20mm, while producing 83.63 skid numbers in the skid resistance test. OPFA can be utilized as a binder modifier to improve the performance of bituminous mixture, which indirectly supports the sustainable development goals (SDGs) concept in road construction, as this study conclusively demonstrated.
{"title":"Characteristics of Oil Palm Fruit Ash as Binder in Asphaltic Concrete","authors":"Mastura Bujang, Nisa ‘Aqila Bakie, Ummi Humaira Bujang, Lee Siaw Kian, Euniza Anak Jusli, Wan Nur Aifa Wan Azahar","doi":"10.17576/jkukm-2023-35(4)-13","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-13","url":null,"abstract":"In order to reduce energy and natural resource consumption during road construction, the sustainability concept needs to be seriously addressed. Oil Palm Fruit Ash (OPFA) is one of the by-products of palm oil production that are typically disposed of in landfills as a result of the growing number of plantations in Malaysia, particularly in Sarawak. Due to the fact that OPFA is known as biomass with pozzolanic qualities (siliceous material), this study was carried out to examine the applicability of OPFA with varying concentrations (0% - 40%) by weight as a modifier in bitumen grade 60/70. Based on the results of the laboratory testing, it was discovered that the modified bitumen provided greater resistance to rutting, temperature, and skid resistance on the bituminous mixture (AC20) compared to the control sample. The 40% OPFA modified samples had the greatest resilient modulus test value, measuring 10992 MPa at 25 °C and 2936 MPa at 40 °C, respectively. In addition, the combination containing 40% OPFA produced the lowest deformation value in the dynamic creep test, which was only 0.20mm, while producing 83.63 skid numbers in the skid resistance test. OPFA can be utilized as a binder modifier to improve the performance of bituminous mixture, which indirectly supports the sustainable development goals (SDGs) concept in road construction, as this study conclusively demonstrated.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398609","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-04
Nurul Syahira Mohamad Zamani, W Mimi Diyana W Zaki, Aqilah Baseri Huddin, Haliza Abdul Mutalib, Aini Hussain
Early pterygium screening is crucial to avoid blurred vision caused by cornea and pupil encroachment. However, medical assessment and conventional screening could be laborious and time-consuming to be implemented. This constraint seeks an advanced yet efficient automated pterygium screening to assist the current diagnostic method. Patch region-based anterior segment photographed images (ASPIs) focus the feature on a particular region of the pterygium growth. This work addresses the data limitation on deep neural network (DNN) processing with large-scale data requirements. It presents an automated pterygium classification of patch region-based ASPI using our previous re-establish network, “VggNet16wbn”, the VggNet16, with the addition of batch normalisation layer after each convolutional layer. During an image preprocessing step, the pterygium and nonpterygium tissue are extracted from ASPI, followed by the generation of a single and three-by-three image patch region-based on the size of the 85×85 dataset. Data preparation with 10-fold cross-validation has been conducted to ensure the data are well generalised to minimise the probability of underfitting and overfitting problems. The proposed experimental work has successfully classified the pterygium tissue with more than 99% accuracy, sensitivity, specificity, and precision using appropriate hyperparameters values. This work could be used as a baseline framework for pterygium classification using limited data processing.
{"title":"Pterygium Classification Using Deep Patch Region-based Anterior Segment Photographed Images","authors":"Nurul Syahira Mohamad Zamani, W Mimi Diyana W Zaki, Aqilah Baseri Huddin, Haliza Abdul Mutalib, Aini Hussain","doi":"10.17576/jkukm-2023-35(4)-04","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-04","url":null,"abstract":"Early pterygium screening is crucial to avoid blurred vision caused by cornea and pupil encroachment. However, medical assessment and conventional screening could be laborious and time-consuming to be implemented. This constraint seeks an advanced yet efficient automated pterygium screening to assist the current diagnostic method. Patch region-based anterior segment photographed images (ASPIs) focus the feature on a particular region of the pterygium growth. This work addresses the data limitation on deep neural network (DNN) processing with large-scale data requirements. It presents an automated pterygium classification of patch region-based ASPI using our previous re-establish network, “VggNet16wbn”, the VggNet16, with the addition of batch normalisation layer after each convolutional layer. During an image preprocessing step, the pterygium and nonpterygium tissue are extracted from ASPI, followed by the generation of a single and three-by-three image patch region-based on the size of the 85×85 dataset. Data preparation with 10-fold cross-validation has been conducted to ensure the data are well generalised to minimise the probability of underfitting and overfitting problems. The proposed experimental work has successfully classified the pterygium tissue with more than 99% accuracy, sensitivity, specificity, and precision using appropriate hyperparameters values. This work could be used as a baseline framework for pterygium classification using limited data processing.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398864","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-07
Nur Athirah Mohd Noor, Zainal Hisham bin Che Soh, Mohamad Nizam Ibrahim, Mohd Hanapiah Abdullah, Siti Noraini Sulaiman, Irni Hamiza Hamzah, Syahrul Afzal Che Abdullah
The social distancing among people is vital in minimizing spread of COVID-19 among community and can be effective in flattening the outbreak. This research work on developing a close contact proximity detection system among smartphone users and particularly of COVID-19 patient using Bluetooth signal to identify and analyze close contact proximity and social distancing from other anonymous smartphone user in his/her surrounding and to alert user if the social distancing is breached. The methodology used the Radio Signal Strength Indicator (RSSI) signal to analyze and estimate the proximity distance and duration of the individual’s exposure to other peoples in surrounding area. The overlap zone of 1-meter is used to indicate detection of closed contact proximity between users. Furthermore, the collected data can be used to do contact tracing that enable health official to identify the closed contact of infected patient systematically, faster and can ensure coverage of people that anonymously and not directly known to the COVID-19 patient. An encouraging result is obtained on the closed contact proximity detection which shown within the mobile apps. Furthermore, the performance of system for close contact proximity detection shown that indoor location has a good signal distribution compared to outdoor location.
{"title":"Public Health and Safety on Close Contact Proximity Detection for COVID-19 and Alert via IoT","authors":"Nur Athirah Mohd Noor, Zainal Hisham bin Che Soh, Mohamad Nizam Ibrahim, Mohd Hanapiah Abdullah, Siti Noraini Sulaiman, Irni Hamiza Hamzah, Syahrul Afzal Che Abdullah","doi":"10.17576/jkukm-2023-35(4)-07","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-07","url":null,"abstract":"The social distancing among people is vital in minimizing spread of COVID-19 among community and can be effective in flattening the outbreak. This research work on developing a close contact proximity detection system among smartphone users and particularly of COVID-19 patient using Bluetooth signal to identify and analyze close contact proximity and social distancing from other anonymous smartphone user in his/her surrounding and to alert user if the social distancing is breached. The methodology used the Radio Signal Strength Indicator (RSSI) signal to analyze and estimate the proximity distance and duration of the individual’s exposure to other peoples in surrounding area. The overlap zone of 1-meter is used to indicate detection of closed contact proximity between users. Furthermore, the collected data can be used to do contact tracing that enable health official to identify the closed contact of infected patient systematically, faster and can ensure coverage of people that anonymously and not directly known to the COVID-19 patient. An encouraging result is obtained on the closed contact proximity detection which shown within the mobile apps. Furthermore, the performance of system for close contact proximity detection shown that indoor location has a good signal distribution compared to outdoor location.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398620","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-01
Nasradeen A. Khalifa
Walking is claimed as the best mode to school due to its benefits towards the environment and health. In the past, walking to school was a common mode. Nowadays, the safety and environmental issues, however, become decisive factors that prevent the parents to allow their children from walking. Despite its advantages, several investigations have shown that walking as a mode choice continues to suffer from narrow and weak foundations that impede to provide a unified identification of factors affecting the parents’ decision on walking as a mode choice. Addressing this issue, this article aims to provide a review of previous study on regards the factors affecting the parents’ decision to allow their children to walk to/from schools, the limitation of review is that the review was conducted on the published studies between 1995 and January 2019. The contribution identifies some factors affecting the parents’ decision about walking to school. It conceptualizes the relationship between different factors that affecting on parents’ decision. Out of 310 research articles 112 of them were the key of achieving the research objective as to element the founding that factors such as distance, safety, traffic, sidewalks, built environment, demography, and parents’ perception have a great influence on parents’ decision to allow their children to walk to-and-from school. The findings of this review can be used to offer a better deal with parents’ concern about their children to travel actively and safely to school.
{"title":"Factors That Influence the Parents Perspective of Allowing Their Children to Walk to / From School- An Overview","authors":"Nasradeen A. Khalifa","doi":"10.17576/jkukm-2023-35(4)-01","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-01","url":null,"abstract":"Walking is claimed as the best mode to school due to its benefits towards the environment and health. In the past, walking to school was a common mode. Nowadays, the safety and environmental issues, however, become decisive factors that prevent the parents to allow their children from walking. Despite its advantages, several investigations have shown that walking as a mode choice continues to suffer from narrow and weak foundations that impede to provide a unified identification of factors affecting the parents’ decision on walking as a mode choice. Addressing this issue, this article aims to provide a review of previous study on regards the factors affecting the parents’ decision to allow their children to walk to/from schools, the limitation of review is that the review was conducted on the published studies between 1995 and January 2019. The contribution identifies some factors affecting the parents’ decision about walking to school. It conceptualizes the relationship between different factors that affecting on parents’ decision. Out of 310 research articles 112 of them were the key of achieving the research objective as to element the founding that factors such as distance, safety, traffic, sidewalks, built environment, demography, and parents’ perception have a great influence on parents’ decision to allow their children to walk to-and-from school. The findings of this review can be used to offer a better deal with parents’ concern about their children to travel actively and safely to school.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398861","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 : 2023-07-30DOI: 10.17576/jkukm-2023-35(4)-14
Atiqur Rahman, Emmanuel Ufiteyezu
A “smart city” is one that makes use of info and comm technologies (ICTs) to increase the awareness, interaction, and effectiveness of city services and monitoring. It might be smart technology, smart design, smart mobility, smart utilities, smart housing, smart healthcare, smart transportation, smart lighting, smart phone detection, smart road, smart traffic management, and smart parking etc. The solicitation of smart cities will increase unexpectedly with the rapid increase in IoT infrastructure. Smart city idea notably going up to city lifecycle. The focal point of this paper is to present an intelligent parking system consuming a novel iOS app-based implementation for smart cities’ demands, which permits a driver to determine a parking lot and a vacant slot in that lot indoor a municipality. This paper additionally focuses on reducing the searching time for determining the parking lot using our proposed method, namely, the booking method. This, in short, lessens the gasoline deployment which in turn cuts carbon trails in the weather, as a way of life, additionally averting useless traveling via packed parking lots in a parking lot that can be useful in decreasing illegal parking and in a way help with the traffic jams we see in our city.
{"title":"Smart Parking System for Green Computing","authors":"Atiqur Rahman, Emmanuel Ufiteyezu","doi":"10.17576/jkukm-2023-35(4)-14","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(4)-14","url":null,"abstract":"A “smart city” is one that makes use of info and comm technologies (ICTs) to increase the awareness, interaction, and effectiveness of city services and monitoring. It might be smart technology, smart design, smart mobility, smart utilities, smart housing, smart healthcare, smart transportation, smart lighting, smart phone detection, smart road, smart traffic management, and smart parking etc. The solicitation of smart cities will increase unexpectedly with the rapid increase in IoT infrastructure. Smart city idea notably going up to city lifecycle. The focal point of this paper is to present an intelligent parking system consuming a novel iOS app-based implementation for smart cities’ demands, which permits a driver to determine a parking lot and a vacant slot in that lot indoor a municipality. This paper additionally focuses on reducing the searching time for determining the parking lot using our proposed method, namely, the booking method. This, in short, lessens the gasoline deployment which in turn cuts carbon trails in the weather, as a way of life, additionally averting useless traveling via packed parking lots in a parking lot that can be useful in decreasing illegal parking and in a way help with the traffic jams we see in our city.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135398608","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 : 2023-05-30DOI: 10.17576/jkukm-2023-35(3)-04Dynamic
Mohd Firrdhaus Mohd-Sahabuddin, Ammar Sadik Dahlan, Azli Mohamad Jamil, F. Muhammad-Sukki
The discovery of the Covid-19 virus in China at the end of 2019 has drastically altered the global landscape. The virus, which has now become a pandemic, has wrought devastation on the world, infecting over 500 million people and killing over 6 million. The virus’s mutation into a few variations, however, has enabled the world’s alarming situation to continue until now. Airborne particles and viruses including the new Covid-19 variant - Omricon, is not only extremely contagious but also can be transferred by airborne transmission, putting vulnerable people like children at risk, particularly in classrooms. Amongst the strategies to control airborne transmission of viruses and to improve indoor thermal and air quality is using ventilation strategies - such as dynamic insulation. Thus, this paper will review at how dynamic insulation systems in conventional farming and residential buildings, cleanrooms and other controlled environments work to reduce airborne viruses and particles in a room. An innovative “Airhouse” concept that combines with activated carbon has been researched and investigated with regard to the dynamic insulation systems.This system has a high potential to reduce the air temperature, humidity, and airborne viruses including Covid-19 whilst maintaining a steady airflow rate in a normal room. Therefore, it has a great deal of potential to decrease or eliminate concerns about the transmission of airborne viruses and adapt ventilation systems to new pandemic threats.
{"title":"Dynamic Insulation Systems to Control Airborne Transmission of Viruses in Classrooms: A Review of ‘Airhouse’ Concept","authors":"Mohd Firrdhaus Mohd-Sahabuddin, Ammar Sadik Dahlan, Azli Mohamad Jamil, F. Muhammad-Sukki","doi":"10.17576/jkukm-2023-35(3)-04Dynamic","DOIUrl":"https://doi.org/10.17576/jkukm-2023-35(3)-04Dynamic","url":null,"abstract":"The discovery of the Covid-19 virus in China at the end of 2019 has drastically altered the global landscape. The virus, which has now become a pandemic, has wrought devastation on the world, infecting over 500 million people and killing over 6 million. The virus’s mutation into a few variations, however, has enabled the world’s alarming situation to continue until now. Airborne particles and viruses including the new Covid-19 variant - Omricon, is not only extremely contagious but also can be transferred by airborne transmission, putting vulnerable people like children at risk, particularly in classrooms. Amongst the strategies to control airborne transmission of viruses and to improve indoor thermal and air quality is using ventilation strategies - such as dynamic insulation. Thus, this paper will review at how dynamic insulation systems in conventional farming and residential buildings, cleanrooms and other controlled environments work to reduce airborne viruses and particles in a room. An innovative “Airhouse” concept that combines with activated carbon has been researched and investigated with regard to the dynamic insulation systems.This system has a high potential to reduce the air temperature, humidity, and airborne viruses including Covid-19 whilst maintaining a steady airflow rate in a normal room. Therefore, it has a great deal of potential to decrease or eliminate concerns about the transmission of airborne viruses and adapt ventilation systems to new pandemic threats.","PeriodicalId":17688,"journal":{"name":"Jurnal Kejuruteraan","volume":"105 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139372461","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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