Pub Date : 2024-06-04DOI: 10.37934/araset.46.1.97106
Nur Zahira Mohamed Zahir, Suhaizal Hashim, Khairul Anuar Abdul Rahman, Nurul Nadwa Zulkifli, Slamet Riyadi, Joko Siswantoro
The acquisition of knowledge and skills in the fields of Science, Technology, Engineering, and Mathematics (STEM) plays a crucial role in fostering the development of future innovators. These subjects are critical for creating future thinkers. Additionally, it is important to note that there are a lot of job openings in the STEM fields, and this trend is expected to keep growing. However, students don’t seem to be as motivated to study in STEM fields or work in STEM fields. One teaching method that is becoming more popular is computer-supported collaborative learning (CSCL). This is because it can have a big effect on how people learn, especially in STEM subjects. It is very important to set up a CSCL learning environment for STEM schooling right away. However, that there isn’t a good framework and there aren’t many widely used design methods in this area. Without a question, there is a strong need to learn more about design methodologies in the areas of collaborative and technology-enhanced learning to come up with simple methods for CSCL. Because of this, the goal of this study is to investigate the conceptual parts of CSCL methods in STEM education. This will be used to make CSCL educational methods that are good especially for STEM education. STEM academics in Malaysia and Indonesia were surveyed using questionnaires to find the most important parts of CSCL strategies in STEM education, and the results were analysed using the Fuzzy Delphi Method. The results give us a list of CSCL settings used in schools, which can be used as a guide for creating and using CSCL strategies in STEM education.
{"title":"Unveiling Effective CSCL Constructs for STEM Education in Malaysia and Indonesia","authors":"Nur Zahira Mohamed Zahir, Suhaizal Hashim, Khairul Anuar Abdul Rahman, Nurul Nadwa Zulkifli, Slamet Riyadi, Joko Siswantoro","doi":"10.37934/araset.46.1.97106","DOIUrl":"https://doi.org/10.37934/araset.46.1.97106","url":null,"abstract":"The acquisition of knowledge and skills in the fields of Science, Technology, Engineering, and Mathematics (STEM) plays a crucial role in fostering the development of future innovators. These subjects are critical for creating future thinkers. Additionally, it is important to note that there are a lot of job openings in the STEM fields, and this trend is expected to keep growing. However, students don’t seem to be as motivated to study in STEM fields or work in STEM fields. One teaching method that is becoming more popular is computer-supported collaborative learning (CSCL). This is because it can have a big effect on how people learn, especially in STEM subjects. It is very important to set up a CSCL learning environment for STEM schooling right away. However, that there isn’t a good framework and there aren’t many widely used design methods in this area. Without a question, there is a strong need to learn more about design methodologies in the areas of collaborative and technology-enhanced learning to come up with simple methods for CSCL. Because of this, the goal of this study is to investigate the conceptual parts of CSCL methods in STEM education. This will be used to make CSCL educational methods that are good especially for STEM education. STEM academics in Malaysia and Indonesia were surveyed using questionnaires to find the most important parts of CSCL strategies in STEM education, and the results were analysed using the Fuzzy Delphi Method. The results give us a list of CSCL settings used in schools, which can be used as a guide for creating and using CSCL strategies in STEM education.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266086","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 : 2024-06-04DOI: 10.37934/araset.46.1.237249
Fatma Taher, A. M. M. A. Allam, Ahmed F. Miligy, Mohamed A. Mohamed, Mohamed Fathy Abo Sree, Sara Yehia Abdel Fatah
In this paper, we will look at the impact of METAMORAL ULC on the performance of LTE / Wi-Fi printed antennas. We will look at two different antenna versions. One version will have the METAMORAL ground layer and will be the traditional antenna. The other version will have a METAMORAL load attached to the altered antenna. The metamaterial ground layer in the antenna will support the unit cell with the MTM structure, and we will look at how the MTM structure affects the performance of the antenna. We will use Roger 5880 with a substrate thickness (1.575 mm) and Dielectric constant (2.2) to test both antenna versions. The antenna’s overall dimensions are 60×49×1.575mm and the loss tangent is 0,0009. Once we have the ideal inductor/capacitor values, we will be able to create equivalent circuits for our planned circuit as well as the conventional circuit. We will then simulate the circuit in CST microwave studio. The path wave ADS simulator runs the equivalent circuit. The antenna is manufactured and measured by Network Analyser Rode Frequency ranges covered by the antenna are: 1.68 GHz 2.51 GHz 3.56 4.63 GHz 4.1 GHz 5.1 GHz Standard applications 2.58 dB/2.45 dB simulated gain 2.22 dB/5.19 dB observed gain Excellent agreement between measured and quoted value from both simulators Particular rate of absorption simulated On a sample Breast Phantom 1g / 10g SAR value must fall between 10g EU limit and 1g US limit Is suitable for use in Cancer diagnosis and detection?
{"title":"Metamaterial Structure Effect on Printed Antenna for LTE/WIFI /Cancer Diagnosis","authors":"Fatma Taher, A. M. M. A. Allam, Ahmed F. Miligy, Mohamed A. Mohamed, Mohamed Fathy Abo Sree, Sara Yehia Abdel Fatah","doi":"10.37934/araset.46.1.237249","DOIUrl":"https://doi.org/10.37934/araset.46.1.237249","url":null,"abstract":"In this paper, we will look at the impact of METAMORAL ULC on the performance of LTE / Wi-Fi printed antennas. We will look at two different antenna versions. One version will have the METAMORAL ground layer and will be the traditional antenna. The other version will have a METAMORAL load attached to the altered antenna. The metamaterial ground layer in the antenna will support the unit cell with the MTM structure, and we will look at how the MTM structure affects the performance of the antenna. We will use Roger 5880 with a substrate thickness (1.575 mm) and Dielectric constant (2.2) to test both antenna versions. The antenna’s overall dimensions are 60×49×1.575mm and the loss tangent is 0,0009. Once we have the ideal inductor/capacitor values, we will be able to create equivalent circuits for our planned circuit as well as the conventional circuit. We will then simulate the circuit in CST microwave studio. The path wave ADS simulator runs the equivalent circuit. The antenna is manufactured and measured by Network Analyser Rode Frequency ranges covered by the antenna are: 1.68 GHz 2.51 GHz 3.56 4.63 GHz 4.1 GHz 5.1 GHz Standard applications 2.58 dB/2.45 dB simulated gain 2.22 dB/5.19 dB observed gain Excellent agreement between measured and quoted value from both simulators Particular rate of absorption simulated On a sample Breast Phantom 1g / 10g SAR value must fall between 10g EU limit and 1g US limit Is suitable for use in Cancer diagnosis and detection?","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"1 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266140","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 : 2024-06-04DOI: 10.37934/araset.46.1.175186
Muhammad Zulhilmi Hussin, Jamaludin Jalani, Muhammad Hilmi Powdzi, Sujana Mohd Rejab
The most dreaded chore is cleaning the house where it is at the top of the list for many people. Cleaning the house is time consuming and must be carried out continuously. This study aims to design an autonomous robotic cleaner for a self-driving robot that automatically cleans the floor. The Smart Robot Cleaner is proposed and established using the Internet of Things (IoT). The robot is equipped with microfiber cleaning, a water tank, a water pump, ultrasonic sensors, a DC motor, a hose tube, and a wheel. The Arduino Uno is used as the main component and is connected with an ultrasonic sensor to detect any object and obstacles. To allow Internet of Things functions in this robot, the Bluetooth module is used as a command from the smartphone to control the movement. The experimental results showed that the performance of the proposed smart robot cleaner is able to clean various dirt, such as water, milk, and sauce. The robot can be manually and automatically controlled via smartphone.
对许多人来说，最怕做的家务就是打扫房间，而打扫房间是家务清单上的头等大事。打扫房子既费时又必须持续进行。本研究旨在为自动驾驶机器人设计一种自动清洁地板的自主机器人清洁器。智能机器人清洁器是利用物联网（IoT）提出并建立的。机器人配有超细纤维清洁器、水箱、水泵、超声波传感器、直流电机、软管和轮子。Arduino Uno 被用作主要组件，并与超声波传感器连接，以探测任何物体和障碍物。为了让该机器人实现物联网功能，蓝牙模块被用作智能手机控制运动的指令。实验结果表明，所提出的智能机器人清洁器能够清洁各种污垢，如水、牛奶和酱汁。该机器人可通过智能手机进行手动和自动控制。
{"title":"Smart Robot Cleaner Using Internet of Things","authors":"Muhammad Zulhilmi Hussin, Jamaludin Jalani, Muhammad Hilmi Powdzi, Sujana Mohd Rejab","doi":"10.37934/araset.46.1.175186","DOIUrl":"https://doi.org/10.37934/araset.46.1.175186","url":null,"abstract":"The most dreaded chore is cleaning the house where it is at the top of the list for many people. Cleaning the house is time consuming and must be carried out continuously. This study aims to design an autonomous robotic cleaner for a self-driving robot that automatically cleans the floor. The Smart Robot Cleaner is proposed and established using the Internet of Things (IoT). The robot is equipped with microfiber cleaning, a water tank, a water pump, ultrasonic sensors, a DC motor, a hose tube, and a wheel. The Arduino Uno is used as the main component and is connected with an ultrasonic sensor to detect any object and obstacles. To allow Internet of Things functions in this robot, the Bluetooth module is used as a command from the smartphone to control the movement. The experimental results showed that the performance of the proposed smart robot cleaner is able to clean various dirt, such as water, milk, and sauce. The robot can be manually and automatically controlled via smartphone.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141267230","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}
Music Information Retrieval (MIR) is one data science application crucial for different tasks such as recommendation systems, genre identification, fingerprinting, and novelty assessment. Different Machine Learning techniques are utilised to analyse digital music records, such as clustering, classification, similarity scoring, and identifying various properties for the different tasks. Music is represented digitally using diverse transformations and is clustered and classified successfully for Western Music. However, Eastern Music poses a challenge, and some techniques have achieved success in clustering and classifying Turkish and Persian Music. This research presents an evaluation of machine learning algorithms' performance on pre-labelled Arabic Music with their Arabic genre (Maqam). The study introduced new data representations of the Arabic music dataset and identified the most suitable machine-learning methods and future enhancements.
{"title":"Arabic Music Genre Identification","authors":"Moataz Ahmed, Sherif Fadel, Manal Helal, Abdel Moneim Wahdan","doi":"10.37934/araset.46.1.187200","DOIUrl":"https://doi.org/10.37934/araset.46.1.187200","url":null,"abstract":"Music Information Retrieval (MIR) is one data science application crucial for different tasks such as recommendation systems, genre identification, fingerprinting, and novelty assessment. Different Machine Learning techniques are utilised to analyse digital music records, such as clustering, classification, similarity scoring, and identifying various properties for the different tasks. Music is represented digitally using diverse transformations and is clustered and classified successfully for Western Music. However, Eastern Music poses a challenge, and some techniques have achieved success in clustering and classifying Turkish and Persian Music. This research presents an evaluation of machine learning algorithms' performance on pre-labelled Arabic Music with their Arabic genre (Maqam). The study introduced new data representations of the Arabic music dataset and identified the most suitable machine-learning methods and future enhancements.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"66 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268235","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 : 2024-06-04DOI: 10.37934/araset.46.1.114
Fitra Ramdhani, Bambang Sugeng Subagio, Harmein Rahman, Russ Bona Frazila
One innovation in creating new materials that have superior properties compared to large-sized materials is to use nanotechnology. The uniqueness of nano materials is that the smaller the size of the material, the greater the surface area and performance characteristics of the material in the asphalt mixture. This research develops nano technology in asphalt pavement construction by making nano material from palm shell ash waste. The aim of this research is to determine the effect of adding palm shell ash nano material as a substitute for asphalt in the AC-WC mixture. The research method was carried out by testing the morphological characterization of the palm shell ash nano material using X-Ray Fluorescence (XRF) testing and Scanning Electron Microscope (SEM) testing, then continuing with testing the characteristics of the mixture using the Marshall testing method. The nano material used is palm shell ash material obtained from palm shell burning waste originating from Riau which is then processed into Nano Palm Shell Ash (NPSA) material using a ball mill. The asphalt used is Pen 60/70 asphalt produced by Pertamina. The use of NPSA material in asphalt modification with NPSA variations of 1%, 2% and 3% can improve the performance of marshal characteristics compared to conventional asphalt mixtures. It can be seen that the stability, flow, VFA and MQ values increase with increasing NPSA percentage in asphalt. Meanwhile, the VIM and VMA values decreased along with the increase in the NPSA percentage in asphalt. In addition, increasing the percentage of NPSA in asphalt can reduce the use of optimum asphalt content compared to conventional asphalt mixtures. Utilizing palm shell ash waste is the best alternative for improving the performance of asphalt in mixtures and is environmentally friendly and economical.
{"title":"Performance Characteristics of Nano Palm Shell Ash (NPSA) in Asphalt Mixture","authors":"Fitra Ramdhani, Bambang Sugeng Subagio, Harmein Rahman, Russ Bona Frazila","doi":"10.37934/araset.46.1.114","DOIUrl":"https://doi.org/10.37934/araset.46.1.114","url":null,"abstract":"One innovation in creating new materials that have superior properties compared to large-sized materials is to use nanotechnology. The uniqueness of nano materials is that the smaller the size of the material, the greater the surface area and performance characteristics of the material in the asphalt mixture. This research develops nano technology in asphalt pavement construction by making nano material from palm shell ash waste. The aim of this research is to determine the effect of adding palm shell ash nano material as a substitute for asphalt in the AC-WC mixture. The research method was carried out by testing the morphological characterization of the palm shell ash nano material using X-Ray Fluorescence (XRF) testing and Scanning Electron Microscope (SEM) testing, then continuing with testing the characteristics of the mixture using the Marshall testing method. The nano material used is palm shell ash material obtained from palm shell burning waste originating from Riau which is then processed into Nano Palm Shell Ash (NPSA) material using a ball mill. The asphalt used is Pen 60/70 asphalt produced by Pertamina. The use of NPSA material in asphalt modification with NPSA variations of 1%, 2% and 3% can improve the performance of marshal characteristics compared to conventional asphalt mixtures. It can be seen that the stability, flow, VFA and MQ values increase with increasing NPSA percentage in asphalt. Meanwhile, the VIM and VMA values decreased along with the increase in the NPSA percentage in asphalt. In addition, increasing the percentage of NPSA in asphalt can reduce the use of optimum asphalt content compared to conventional asphalt mixtures. Utilizing palm shell ash waste is the best alternative for improving the performance of asphalt in mixtures and is environmentally friendly and economical.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"4 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266988","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 : 2024-06-04DOI: 10.37934/araset.46.1.250260
Asep Bayu Dani Nandiyanto, Riri Noor Sucianto, Salsa Rahmita Matildha, Fauziyyah Zayyan Nur, Teguh Kurniawan, Muhammad Roil Bilad, Nor Azwadi
This research aims to determine the compounds produced from the pyrolyzed Low Linear Density Polyethylene (LLDPE) using Fourier Transform Infrared (FTIR) and Gas Chromatography-Mass Spectroscopy (GC MS). We used pyrolysis of 985 g of 2-mm diameter LLDPE plastic ore at a temperature between 192-194°C for 135 min using a batch reactor (length x width x height = 35 cm x 24 cm x 44 cm) equipped with an outlet connected to two condensers (24°C). To ensure the chemical results, the reactor was connected in series to condensers 1 and 2. The results obtained in condenser 1 were 3 mL of 2-phase liquid with a strong odor. The upper fluid is yellow, and the lower fluid is brown. In condenser 2 (connected directly to condenser 1), 4 mL of yellow single-phase liquid was produced with a strong odor. The liquid obtained from the pyrolysis process was then analyzed by FTIR and GC-MS. FTIR results on both samples showed that the samples contained the functional groups O-H, CH₂, and C=O. The GC-MS results on condenser sample 2 showed that the pyrolysis product contained acetone compounds. This confirmed that pyrolysis caused chemical structural changes in LLDPE due to LLDPE chain bond-breaking reactions, producing many smaller chemical compounds. Additionally, some oxidation happens, which is due to the oxygen content in the reactor. This study provides new insights into the LLDPE pyrolysis mechanism and the physical and chemical properties of the liquid resulting from the pyrolysis process.
{"title":"What Phenomena Happen During Pyrolysis of Plastic? FTIR AND GC-MS Analysis of Pyrolyzed Low Linear Density Polyethylene (LLDPE) Polymer Particles Completed with Bibliometric Research Trend and Pyrolysis Chemical Reaction Mechanism","authors":"Asep Bayu Dani Nandiyanto, Riri Noor Sucianto, Salsa Rahmita Matildha, Fauziyyah Zayyan Nur, Teguh Kurniawan, Muhammad Roil Bilad, Nor Azwadi","doi":"10.37934/araset.46.1.250260","DOIUrl":"https://doi.org/10.37934/araset.46.1.250260","url":null,"abstract":"This research aims to determine the compounds produced from the pyrolyzed Low Linear Density Polyethylene (LLDPE) using Fourier Transform Infrared (FTIR) and Gas Chromatography-Mass Spectroscopy (GC MS). We used pyrolysis of 985 g of 2-mm diameter LLDPE plastic ore at a temperature between 192-194°C for 135 min using a batch reactor (length x width x height = 35 cm x 24 cm x 44 cm) equipped with an outlet connected to two condensers (24°C). To ensure the chemical results, the reactor was connected in series to condensers 1 and 2. The results obtained in condenser 1 were 3 mL of 2-phase liquid with a strong odor. The upper fluid is yellow, and the lower fluid is brown. In condenser 2 (connected directly to condenser 1), 4 mL of yellow single-phase liquid was produced with a strong odor. The liquid obtained from the pyrolysis process was then analyzed by FTIR and GC-MS. FTIR results on both samples showed that the samples contained the functional groups O-H, CH₂, and C=O. The GC-MS results on condenser sample 2 showed that the pyrolysis product contained acetone compounds. This confirmed that pyrolysis caused chemical structural changes in LLDPE due to LLDPE chain bond-breaking reactions, producing many smaller chemical compounds. Additionally, some oxidation happens, which is due to the oxygen content in the reactor. This study provides new insights into the LLDPE pyrolysis mechanism and the physical and chemical properties of the liquid resulting from the pyrolysis process.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"68 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268550","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}
Aspergillus is one of the most ubiquitous of the airborne saprophytic fungi that can withstand various climatic conditions and could cause multiple type of illness. It can be beneficial to humankind and also can be infectious to humans and animals. Direct microscopic is used by trained microscopist as one of the alternatives in identification process to any specimen that suspected of having fungal infection. Confirmation towards identification is often necessary as the structure of Aspergillus is complex and dissimilar in each cycle. In addition, the structure of some species of Aspergillus are the almost same, which can be incorrectly recognized. In prevention of misidentification, computer-based Aspergillus species identification is proposed. The detection process is the earliest and important process hence, this paper proposed an active region-based segmentation method in order to detect the presence of fungi. This method is literally not depending on the gradient or sharp edges of the object and implementing level set function for curve evolution which able to reduce the computational cost. Originally, this function was developed for tracking fluid interfaces but in this study, this function has been applied to fungi database. Two different methods were tested and compared to observe their ability to segment different 80 of Aspergillus images which included four species. Experiments conducted have been compared with the baseline technique and the proposed method is outperformed in terms of accuracy, specificity with average of 90% and PSNR value of greater than 40dB. Meanwhile the active contour (snake) was slightly underperformed but well performed particularly in terms of sensitivity with greater than 80% for all the species. Moreover, upon scrutinizing the dice coefficients provided in both tables, it becomes apparent that there is a lack of significant variance in the values, except in the instance of Aspergillus fumigatus (active region-based) that which produces a result below 36%.
{"title":"Curvature-Based Active Region Segmentation for Improved Image Processing of Aspergillus Species","authors":"Nur Rodiatul Raudah Mohamed Radzuan, Haryati Jaafar, Farah Nabilah Zabani, Fatin Norazima Mohamad Ariff, Fatin Nadia Azman Fauzi","doi":"10.37934/araset.46.1.157174","DOIUrl":"https://doi.org/10.37934/araset.46.1.157174","url":null,"abstract":"Aspergillus is one of the most ubiquitous of the airborne saprophytic fungi that can withstand various climatic conditions and could cause multiple type of illness. It can be beneficial to humankind and also can be infectious to humans and animals. Direct microscopic is used by trained microscopist as one of the alternatives in identification process to any specimen that suspected of having fungal infection. Confirmation towards identification is often necessary as the structure of Aspergillus is complex and dissimilar in each cycle. In addition, the structure of some species of Aspergillus are the almost same, which can be incorrectly recognized. In prevention of misidentification, computer-based Aspergillus species identification is proposed. The detection process is the earliest and important process hence, this paper proposed an active region-based segmentation method in order to detect the presence of fungi. This method is literally not depending on the gradient or sharp edges of the object and implementing level set function for curve evolution which able to reduce the computational cost. Originally, this function was developed for tracking fluid interfaces but in this study, this function has been applied to fungi database. Two different methods were tested and compared to observe their ability to segment different 80 of Aspergillus images which included four species. Experiments conducted have been compared with the baseline technique and the proposed method is outperformed in terms of accuracy, specificity with average of 90% and PSNR value of greater than 40dB. Meanwhile the active contour (snake) was slightly underperformed but well performed particularly in terms of sensitivity with greater than 80% for all the species. Moreover, upon scrutinizing the dice coefficients provided in both tables, it becomes apparent that there is a lack of significant variance in the values, except in the instance of Aspergillus fumigatus (active region-based) that which produces a result below 36%.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"1 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266103","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 : 2024-06-04DOI: 10.37934/araset.46.1.8696
Nor Raihan Zulkefly, Omar Abd. Aziz, Ibraheem Shayea, Ahmed Al-Saman
This paper presents the propagation path loss channel models, developed from real-field measurement in Universiti Teknologi Malaysia (UTM) Kuala Lumpur, Malaysia. The purpose of the study is to characterize the channel at 28 GHz for 5G communications system in line-of-sight corridors environment. Measurement campaigns were conducted to measure the wireless signal of received signal strength at three different construction of straight corridors, narrow, wide, and open corridors. The large-scale path loss models are developed using the closed-in reference distance and floating–intercept modeling approaches. Besides contributing path loss models at 28 GHz for different corridors dimension, the result found in this work discovered the breakpoint distance of radio propagation is seen varies differently at those corridors.
{"title":"Path Loss Models for 5G Communications System in Corridors Environment","authors":"Nor Raihan Zulkefly, Omar Abd. Aziz, Ibraheem Shayea, Ahmed Al-Saman","doi":"10.37934/araset.46.1.8696","DOIUrl":"https://doi.org/10.37934/araset.46.1.8696","url":null,"abstract":"This paper presents the propagation path loss channel models, developed from real-field measurement in Universiti Teknologi Malaysia (UTM) Kuala Lumpur, Malaysia. The purpose of the study is to characterize the channel at 28 GHz for 5G communications system in line-of-sight corridors environment. Measurement campaigns were conducted to measure the wireless signal of received signal strength at three different construction of straight corridors, narrow, wide, and open corridors. The large-scale path loss models are developed using the closed-in reference distance and floating–intercept modeling approaches. Besides contributing path loss models at 28 GHz for different corridors dimension, the result found in this work discovered the breakpoint distance of radio propagation is seen varies differently at those corridors.","PeriodicalId":506443,"journal":{"name":"Journal of Advanced Research in Applied Sciences and Engineering Technology","volume":"22 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266356","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 : 2024-06-04DOI: 10.37934/araset.46.1.1527
Tan Choon Keong, Gao JiMei
Flipped classroom (FC) overcomes many drawbacks of traditional teaching and has a wide range of applications in the field of (computer science) CS education. Systematically analysing the research themes and keywords of the flipped classroom in CS teaching is of great significance in guiding the improvement of the teaching quality of the flipped classroom. In this study, we used CiteSpace to statistically analyse the data of 229 articles published in the core library of Web of Science from 2007 to July 18, 2023, and visualize author co-citation clustering, and keyword co-occurrence. The results of the study showed that (1) the statistical analysis indicated that the application of flipped classroom in CS education has entered a trough period; (2) based on the cluster of author co-citation network, three research themes of CS flipped implementation, online learning, and skill development were identified in this study. (3) Based on the co-occurrence of keywords, this study identified three research hotspots: integration strategies, flipping effectiveness, and challenges faced.
翻转课堂（FC）克服了传统教学的诸多弊端，在（计算机科学）CS教育领域有着广泛的应用。系统分析翻转课堂在 CS 教学中的研究主题和关键词，对提高翻转课堂的教学质量具有重要的指导意义。本研究利用CiteSpace对2007年至2023年7月18日发表在Web of Science核心库中的229篇文章数据进行统计分析，并对作者共引聚类、关键词共现进行可视化分析。研究结果表明：（1）统计分析表明，翻转课堂在CS教育中的应用已进入低谷期；（2）基于作者共引网络聚类，本研究确定了CS翻转实施、在线学习和技能培养三个研究主题。(3）基于关键词的共现，本研究确定了三个研究热点：整合策略、翻转效果和面临的挑战。
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Pub Date : 2024-06-04DOI: 10.37934/araset.46.1.146156
F. Taher, Mohamed Fathy Abo Sree, Hesham A. Mohamed, Hussein Hamed Ghouz, Sarah Yehia Abdel Fatah
In this paper, we design, fabricate, measure, and report two proposed multiple input multiple output antenna elements (MIMOs) with good performance in the 5G band. The MIMO antennas are mounted on Roger / Druoid 5880 substrates (dielectric constant: 2.2) with an overall structure volume 20×24.14×0.79mm3. First, a comprehensive parametric study is performed based on CST Electromagnetic (EM) Simulator to investigate and enhance the antenna performance in relation to 5G application requirements. Second, as part of the antenna design process, we compute the envelope correlation coefficient (ECC > 0.01dB) and diversity gain (DG> 9.9dB) and achieve good results. Third, we provide fabrication and measurement verification with good agreement. Fourth, we use a tapered feed structure with inset feed to minimize mutual coupling and achieve matching along 2 transmission lines with various impedances with high compactness in the antenna structure. Fifthly, we report that the proposed antenna structure has a gain is 8 dBi (dB) at the relevant operating frequency band (24.25
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