The most common and dangerous hereditary disease that affect red blood cells (RBC) is sickle cell anaemia due to its morphological characteristics of the cells and caused episodes of pains to the affected individual. This work proposed algorithms in two phase, firstly is to compare segmentation systems such as watershed, edge detection, laplacian of Gaussian and Otsu thresholding on sickle cell anaemia blood smear images and secondly is to detect the presence of cell abnormalities in blood smear images using labelling method by considering eccentricity and form factor features. The RBCs of sickle cell anaemia patient have several abnormalities apart from the sickle shape that will guide medical practitioners on the severity level. The major requirement of the system is to get accurate thresholding level in order to detect the abnormalities of sickle cell anaemia patients for excellent management of the affected individuals to reduce episodes of crises. The phase one proved Otsu thresholding with the highest accuracy, sensitivity and specificity of 93%,94% and 80% respectively by considering 30 blood smear images while the classification gives accuracy, sensitivity and specificity of 88%,93% and 50% respectively.The most common and dangerous hereditary disease that affect red blood cells (RBC) is sickle cell anaemia due to its morphological characteristics of the cells and caused episodes of pains to the affected individual. This work proposed algorithms in two phase, firstly is to compare segmentation systems such as watershed, edge detection, laplacian of Gaussian and Otsu thresholding on sickle cell anaemia blood smear images and secondly is to detect the presence of cell abnormalities in blood smear images using labelling method by considering eccentricity and form factor features. The RBCs of sickle cell anaemia patient have several abnormalities apart from the sickle shape that will guide medical practitioners on the severity level. The major requirement of the system is to get accurate thresholding level in order to detect the abnormalities of sickle cell anaemia patients for excellent management of the affected individuals to reduce episodes of crises. The phase one proved Otsu thresholding with the highe...
{"title":"Segmentation and detection of sickle cell red blood image","authors":"H. A. Aliyu, M. A. A. Razak, R. Sudirman","doi":"10.1063/1.5133919","DOIUrl":"https://doi.org/10.1063/1.5133919","url":null,"abstract":"The most common and dangerous hereditary disease that affect red blood cells (RBC) is sickle cell anaemia due to its morphological characteristics of the cells and caused episodes of pains to the affected individual. This work proposed algorithms in two phase, firstly is to compare segmentation systems such as watershed, edge detection, laplacian of Gaussian and Otsu thresholding on sickle cell anaemia blood smear images and secondly is to detect the presence of cell abnormalities in blood smear images using labelling method by considering eccentricity and form factor features. The RBCs of sickle cell anaemia patient have several abnormalities apart from the sickle shape that will guide medical practitioners on the severity level. The major requirement of the system is to get accurate thresholding level in order to detect the abnormalities of sickle cell anaemia patients for excellent management of the affected individuals to reduce episodes of crises. The phase one proved Otsu thresholding with the highest accuracy, sensitivity and specificity of 93%,94% and 80% respectively by considering 30 blood smear images while the classification gives accuracy, sensitivity and specificity of 88%,93% and 50% respectively.The most common and dangerous hereditary disease that affect red blood cells (RBC) is sickle cell anaemia due to its morphological characteristics of the cells and caused episodes of pains to the affected individual. This work proposed algorithms in two phase, firstly is to compare segmentation systems such as watershed, edge detection, laplacian of Gaussian and Otsu thresholding on sickle cell anaemia blood smear images and secondly is to detect the presence of cell abnormalities in blood smear images using labelling method by considering eccentricity and form factor features. The RBCs of sickle cell anaemia patient have several abnormalities apart from the sickle shape that will guide medical practitioners on the severity level. The major requirement of the system is to get accurate thresholding level in order to detect the abnormalities of sickle cell anaemia patients for excellent management of the affected individuals to reduce episodes of crises. The phase one proved Otsu thresholding with the highe...","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77860920","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}
Implementation of silicon on insulator (SOI) technology gives a great alternative to the miniaturization and reduction of short channel effects, allowing microelectronic evolution to proceed. This paper investigate the characteristics of n-channel partially depleted silicon on insulator (PDSOI) and fully depleted silicon on insulator (FDSOI) metal oxide semiconductor field effect transistor (MOSFET). Both transistors are investigated in terms of electrical characteristics which are the threshold voltage, leakage current and kink effect. Both PDSOI and FDSOI MOSFETs are simulated by using Silvaco TCAD tools. The SOI MOSFET structures are simulated in Silvaco Atlas 2-D numerical simulator. The threshold voltage and leakage current of PDSOI MOSFET with silicon film thickness of 0.2 µm are found to be 0.6357 V and 0.013 pA respectively. As for FDSOI MOSFET with silicon film thickness of 0.08 µm, the threshold voltage is 0.3642 V and leakage current of 0.034 pA. Additionally, the simulation result also shows that kink effect only presents in PDSOI MOSFET. After analysing the results, it can be concluded that FDSOI MOSFET has better performance than PDSOI MOSFET.Implementation of silicon on insulator (SOI) technology gives a great alternative to the miniaturization and reduction of short channel effects, allowing microelectronic evolution to proceed. This paper investigate the characteristics of n-channel partially depleted silicon on insulator (PDSOI) and fully depleted silicon on insulator (FDSOI) metal oxide semiconductor field effect transistor (MOSFET). Both transistors are investigated in terms of electrical characteristics which are the threshold voltage, leakage current and kink effect. Both PDSOI and FDSOI MOSFETs are simulated by using Silvaco TCAD tools. The SOI MOSFET structures are simulated in Silvaco Atlas 2-D numerical simulator. The threshold voltage and leakage current of PDSOI MOSFET with silicon film thickness of 0.2 µm are found to be 0.6357 V and 0.013 pA respectively. As for FDSOI MOSFET with silicon film thickness of 0.08 µm, the threshold voltage is 0.3642 V and leakage current of 0.034 pA. Additionally, the simulation result also shows t...
{"title":"Investigation of FDSOI and PDSOI MOSFET characteristics","authors":"Huiyun Wei, S. H. Ruslan","doi":"10.1063/1.5133920","DOIUrl":"https://doi.org/10.1063/1.5133920","url":null,"abstract":"Implementation of silicon on insulator (SOI) technology gives a great alternative to the miniaturization and reduction of short channel effects, allowing microelectronic evolution to proceed. This paper investigate the characteristics of n-channel partially depleted silicon on insulator (PDSOI) and fully depleted silicon on insulator (FDSOI) metal oxide semiconductor field effect transistor (MOSFET). Both transistors are investigated in terms of electrical characteristics which are the threshold voltage, leakage current and kink effect. Both PDSOI and FDSOI MOSFETs are simulated by using Silvaco TCAD tools. The SOI MOSFET structures are simulated in Silvaco Atlas 2-D numerical simulator. The threshold voltage and leakage current of PDSOI MOSFET with silicon film thickness of 0.2 µm are found to be 0.6357 V and 0.013 pA respectively. As for FDSOI MOSFET with silicon film thickness of 0.08 µm, the threshold voltage is 0.3642 V and leakage current of 0.034 pA. Additionally, the simulation result also shows that kink effect only presents in PDSOI MOSFET. After analysing the results, it can be concluded that FDSOI MOSFET has better performance than PDSOI MOSFET.Implementation of silicon on insulator (SOI) technology gives a great alternative to the miniaturization and reduction of short channel effects, allowing microelectronic evolution to proceed. This paper investigate the characteristics of n-channel partially depleted silicon on insulator (PDSOI) and fully depleted silicon on insulator (FDSOI) metal oxide semiconductor field effect transistor (MOSFET). Both transistors are investigated in terms of electrical characteristics which are the threshold voltage, leakage current and kink effect. Both PDSOI and FDSOI MOSFETs are simulated by using Silvaco TCAD tools. The SOI MOSFET structures are simulated in Silvaco Atlas 2-D numerical simulator. The threshold voltage and leakage current of PDSOI MOSFET with silicon film thickness of 0.2 µm are found to be 0.6357 V and 0.013 pA respectively. As for FDSOI MOSFET with silicon film thickness of 0.08 µm, the threshold voltage is 0.3642 V and leakage current of 0.034 pA. Additionally, the simulation result also shows t...","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76066597","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}
Transmitter hunting, also known as fox hunting, is a popular activity amongst amateur radio hobbyists. The concept of this activity is based on radio direction finding. This study has two main parts, namely, the transmitter and the receiver. The transmitter uses Arduino Uno and Baofeng radios. GPS and GSM tracker is also added at the transmitter for location-monitoring purposes. The transmitter will be hidden in a designated area, and a Morse code that has been programmed in Arduino will be sent. For the receiver part, two receiver antennas with different designs and materials, namely, Yagi and Moxon, are used. These two antennas operate in a frequency range of 144 MHz and 145 MHz, respectively, and will be connected to an attenuator to reduce the strength of the received signal. Subsequently, these antennas will be connected to a Baofeng radio. The type of attenuator in this study is a step attenuator with three different gains, namely, 6, 10 and 20 dB. The use of an attenuator can reduce gain between 6.62 dB and 10.04 dB for Yagi antenna and between 2.66 dB and 12.64 dB for Moxon antenna. A test has been carried out at Parit Haji Rais area to compare the reception quality between Yagi and Moxon antennas. The test is carried out at four locations with different distances, namely, 350, 550, 700 and 900 m. The antennas can work well up to 550 m from the transmitter. Moxon antenna has a slightly better performance than Yagi antenna based on the distance.Transmitter hunting, also known as fox hunting, is a popular activity amongst amateur radio hobbyists. The concept of this activity is based on radio direction finding. This study has two main parts, namely, the transmitter and the receiver. The transmitter uses Arduino Uno and Baofeng radios. GPS and GSM tracker is also added at the transmitter for location-monitoring purposes. The transmitter will be hidden in a designated area, and a Morse code that has been programmed in Arduino will be sent. For the receiver part, two receiver antennas with different designs and materials, namely, Yagi and Moxon, are used. These two antennas operate in a frequency range of 144 MHz and 145 MHz, respectively, and will be connected to an attenuator to reduce the strength of the received signal. Subsequently, these antennas will be connected to a Baofeng radio. The type of attenuator in this study is a step attenuator with three different gains, namely, 6, 10 and 20 dB. The use of an attenuator can reduce gain between 6....
{"title":"Development of transmitter and receiver for fox hunting activity","authors":"Wafiuddin Suparman, M. J. Homam","doi":"10.1063/1.5133935","DOIUrl":"https://doi.org/10.1063/1.5133935","url":null,"abstract":"Transmitter hunting, also known as fox hunting, is a popular activity amongst amateur radio hobbyists. The concept of this activity is based on radio direction finding. This study has two main parts, namely, the transmitter and the receiver. The transmitter uses Arduino Uno and Baofeng radios. GPS and GSM tracker is also added at the transmitter for location-monitoring purposes. The transmitter will be hidden in a designated area, and a Morse code that has been programmed in Arduino will be sent. For the receiver part, two receiver antennas with different designs and materials, namely, Yagi and Moxon, are used. These two antennas operate in a frequency range of 144 MHz and 145 MHz, respectively, and will be connected to an attenuator to reduce the strength of the received signal. Subsequently, these antennas will be connected to a Baofeng radio. The type of attenuator in this study is a step attenuator with three different gains, namely, 6, 10 and 20 dB. The use of an attenuator can reduce gain between 6.62 dB and 10.04 dB for Yagi antenna and between 2.66 dB and 12.64 dB for Moxon antenna. A test has been carried out at Parit Haji Rais area to compare the reception quality between Yagi and Moxon antennas. The test is carried out at four locations with different distances, namely, 350, 550, 700 and 900 m. The antennas can work well up to 550 m from the transmitter. Moxon antenna has a slightly better performance than Yagi antenna based on the distance.Transmitter hunting, also known as fox hunting, is a popular activity amongst amateur radio hobbyists. The concept of this activity is based on radio direction finding. This study has two main parts, namely, the transmitter and the receiver. The transmitter uses Arduino Uno and Baofeng radios. GPS and GSM tracker is also added at the transmitter for location-monitoring purposes. The transmitter will be hidden in a designated area, and a Morse code that has been programmed in Arduino will be sent. For the receiver part, two receiver antennas with different designs and materials, namely, Yagi and Moxon, are used. These two antennas operate in a frequency range of 144 MHz and 145 MHz, respectively, and will be connected to an attenuator to reduce the strength of the received signal. Subsequently, these antennas will be connected to a Baofeng radio. The type of attenuator in this study is a step attenuator with three different gains, namely, 6, 10 and 20 dB. The use of an attenuator can reduce gain between 6....","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79938291","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}
S. Sendari, M. Hadi, Y. Rahmawati, N. Hadi, Fauzy Satrio Wibowo, Danang Arengga Wibowo, W. Agustin, Ira Kumalasari, I. Rachman, Toru Matsumoto
In this paper, a safety of hazardous gas instruments for laboratory experiments was designed using a microcontroller and connected to personal computer to save the data. Here, the carbon monoxide gas (CO) and methane gas (CH4) sensors are applied to the systems to measure the concentration of gases in case of laboratory. Commonly, the gas instruments are used in object tested directly without considering the flow of gases toward the user. Comparing to that system, in order to protect the users’ safety from of direct contact with the gases, inlet-outlet pipes and fill-discharge tubes are used in this proposed system. The performance of the proposed system is analysed trough experiments. Some results were presented according to the time of activating inlet to inject the gas. Thus, the effect of changing the gas concentration was analysed.In this paper, a safety of hazardous gas instruments for laboratory experiments was designed using a microcontroller and connected to personal computer to save the data. Here, the carbon monoxide gas (CO) and methane gas (CH4) sensors are applied to the systems to measure the concentration of gases in case of laboratory. Commonly, the gas instruments are used in object tested directly without considering the flow of gases toward the user. Comparing to that system, in order to protect the users’ safety from of direct contact with the gases, inlet-outlet pipes and fill-discharge tubes are used in this proposed system. The performance of the proposed system is analysed trough experiments. Some results were presented according to the time of activating inlet to inject the gas. Thus, the effect of changing the gas concentration was analysed.
{"title":"Design and analysis of safety hazardous gas instruments for laboratory experiments","authors":"S. Sendari, M. Hadi, Y. Rahmawati, N. Hadi, Fauzy Satrio Wibowo, Danang Arengga Wibowo, W. Agustin, Ira Kumalasari, I. Rachman, Toru Matsumoto","doi":"10.1063/1.5133921","DOIUrl":"https://doi.org/10.1063/1.5133921","url":null,"abstract":"In this paper, a safety of hazardous gas instruments for laboratory experiments was designed using a microcontroller and connected to personal computer to save the data. Here, the carbon monoxide gas (CO) and methane gas (CH4) sensors are applied to the systems to measure the concentration of gases in case of laboratory. Commonly, the gas instruments are used in object tested directly without considering the flow of gases toward the user. Comparing to that system, in order to protect the users’ safety from of direct contact with the gases, inlet-outlet pipes and fill-discharge tubes are used in this proposed system. The performance of the proposed system is analysed trough experiments. Some results were presented according to the time of activating inlet to inject the gas. Thus, the effect of changing the gas concentration was analysed.In this paper, a safety of hazardous gas instruments for laboratory experiments was designed using a microcontroller and connected to personal computer to save the data. Here, the carbon monoxide gas (CO) and methane gas (CH4) sensors are applied to the systems to measure the concentration of gases in case of laboratory. Commonly, the gas instruments are used in object tested directly without considering the flow of gases toward the user. Comparing to that system, in order to protect the users’ safety from of direct contact with the gases, inlet-outlet pipes and fill-discharge tubes are used in this proposed system. The performance of the proposed system is analysed trough experiments. Some results were presented according to the time of activating inlet to inject the gas. Thus, the effect of changing the gas concentration was analysed.","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85812558","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}
Lina Farhana Mahadi, Nabilah Ibrahim, Mohd Thariq Zaluwi, Muhammad Haniff S. M. Johan
This paper provides the explanation of the concepts of point tracking technique to be implemented in mitral valve locating in video frames. Object tracking has been used for many applications in motion-based recognition and monitoring. This paper discussed about the implementation of Kanade-Lucas-Tomasi (KLT) algorithm for automatic detection of the mitral valve in video frames. An experiment is carried out which covers the patient scanning who suffers from mitral valve disease. The performance of the method is validated by comparing the value of point track per frames. It is found that the point tracker systems can track the mitral valve up to 0.3s.This paper provides the explanation of the concepts of point tracking technique to be implemented in mitral valve locating in video frames. Object tracking has been used for many applications in motion-based recognition and monitoring. This paper discussed about the implementation of Kanade-Lucas-Tomasi (KLT) algorithm for automatic detection of the mitral valve in video frames. An experiment is carried out which covers the patient scanning who suffers from mitral valve disease. The performance of the method is validated by comparing the value of point track per frames. It is found that the point tracker systems can track the mitral valve up to 0.3s.
{"title":"Performance evaluation on mitral valve motion feature tracking using Kanade-Lucas-Tomasi (KLT) algorithm based eigenvalue measurement","authors":"Lina Farhana Mahadi, Nabilah Ibrahim, Mohd Thariq Zaluwi, Muhammad Haniff S. M. Johan","doi":"10.1063/1.5133917","DOIUrl":"https://doi.org/10.1063/1.5133917","url":null,"abstract":"This paper provides the explanation of the concepts of point tracking technique to be implemented in mitral valve locating in video frames. Object tracking has been used for many applications in motion-based recognition and monitoring. This paper discussed about the implementation of Kanade-Lucas-Tomasi (KLT) algorithm for automatic detection of the mitral valve in video frames. An experiment is carried out which covers the patient scanning who suffers from mitral valve disease. The performance of the method is validated by comparing the value of point track per frames. It is found that the point tracker systems can track the mitral valve up to 0.3s.This paper provides the explanation of the concepts of point tracking technique to be implemented in mitral valve locating in video frames. Object tracking has been used for many applications in motion-based recognition and monitoring. This paper discussed about the implementation of Kanade-Lucas-Tomasi (KLT) algorithm for automatic detection of the mitral valve in video frames. An experiment is carried out which covers the patient scanning who suffers from mitral valve disease. The performance of the method is validated by comparing the value of point track per frames. It is found that the point tracker systems can track the mitral valve up to 0.3s.","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90954223","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}
Ronald Jackson, S. A. Zulkifli, N. M. B. Sham, E. Pathan
This paper presents an investigation of the single-phase microgrid system with improved power flow control for accurate power sharing for the inverter. The proposed controller has been developed based on abc-αβ calculation that being integrates into distributed generation (DG) system for power delivery to the local loads as combined with the grid power flow. In the meantime, the current control also has been placed to the inverter as for the injected current from the DGs can be controlled. Therefore, this paper has used a structure comprising two constant DGs with the converter connected to the loads and grid supply at the point of connection. The advantage of this control strategy is where it allows for the inverter to have active and reactive power distribution equal to the load. The inverter is based on a voltage source inverter (VSI) circuit and operated in active-reactive (P-Q) power mode. Hence, the VSIs should meet the total demand so that the DGs unit shared the power according as instructed by the control strategy. Simulation results are presented to prove the validity and improvements achieved by the proposed controller. Finally, it shows that a reasonable agreement on powersharing performance.
{"title":"An investigation on active and reactive power flow control based on grid-tied parallel inverters","authors":"Ronald Jackson, S. A. Zulkifli, N. M. B. Sham, E. Pathan","doi":"10.1063/1.5133916","DOIUrl":"https://doi.org/10.1063/1.5133916","url":null,"abstract":"This paper presents an investigation of the single-phase microgrid system with improved power flow control for accurate power sharing for the inverter. The proposed controller has been developed based on abc-αβ calculation that being integrates into distributed generation (DG) system for power delivery to the local loads as combined with the grid power flow. In the meantime, the current control also has been placed to the inverter as for the injected current from the DGs can be controlled. Therefore, this paper has used a structure comprising two constant DGs with the converter connected to the loads and grid supply at the point of connection. The advantage of this control strategy is where it allows for the inverter to have active and reactive power distribution equal to the load. The inverter is based on a voltage source inverter (VSI) circuit and operated in active-reactive (P-Q) power mode. Hence, the VSIs should meet the total demand so that the DGs unit shared the power according as instructed by the control strategy. Simulation results are presented to prove the validity and improvements achieved by the proposed controller. Finally, it shows that a reasonable agreement on powersharing performance.","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81370034","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}
Daphne Tay Ye Chee, H. Nabipour-Afrouzi, Z. A. Malek, K. Mehranzamir, J. Ahmed
The insulation system represents one of the most critical elements in any high voltage equipment, inclusive of any cabling and machineries. 60% of the faults and errors occurred in the insulation system are due to partial discharge occurrence which damage the high voltage machines and equipment, leading to an incurrence of huge expenses to replace them. The focus of this research is on the electric field distribution inside stator bar insulation system machine related to partial discharge phenomena. This research is manifested through the study of high voltage stator bar insulation’s electric field and potential distribution, coupled with follow up investigations into the ramifications of cavities of different distinctive shapes and the impact of the different positioning and sizes of cavities on the insulation system. The Finite element method (FEM) is the method that will be utilized in analyzing such simulation of the high voltage stator bar with the COMSOL software. A 2D modelling of stator bar insulation is conducted for this research to enhance an advanced understanding into the response of electric field distribution corresponding to distinctive shapes, positions and sizes of cavities within the insulation of high voltage stator bar. This outcome of this research will contribute majorly to the electrical power industry through acknowledging the presence of cavities and high electric field distribution relational to partial discharge activities while minimizing or preventing any faulty breakdown in stator bar machine that causes costly power failure in generation, distribution and transmission of electricity. The results from this research shows that the shapes, locations and sizes of cavities have a major influence on the electric field distribution inside the stator bar insulation whereby the presence of ellipsoidal shapes cavities give rise of electric field intensity twice the original (when no cavity is present), followed by the unknown shapes cavities which contributes 72.31% increment and spherical cavity which brings about 54% rise in the electric field strength. In terms of locations of cavities, the nearer the cavities located to the conductor region (at the inner insulation surface) as well as the edgy parts of the geometry, the higher the electric field is established inside the cavities. Apart from that, as the sizes of cavities increases from 0.22mm to 1.10mm, the electric field stresses inside spherical, ellipsoidal and unknown cavities sustain a drop of 19.08%, 12.09% and 28.57% respectively. This result deduces that highest inhomogeneous electric field stress is detected inside unknown shape cavity which increases the risk of electrical breakdown in this shape of cavity.The insulation system represents one of the most critical elements in any high voltage equipment, inclusive of any cabling and machineries. 60% of the faults and errors occurred in the insulation system are due to partial discharge occurrence which damage th
{"title":"Study of electric field distribution in the high voltage stator bar insulation in presence of different shapes, locations and sizes of cavities","authors":"Daphne Tay Ye Chee, H. Nabipour-Afrouzi, Z. A. Malek, K. Mehranzamir, J. Ahmed","doi":"10.1063/1.5133927","DOIUrl":"https://doi.org/10.1063/1.5133927","url":null,"abstract":"The insulation system represents one of the most critical elements in any high voltage equipment, inclusive of any cabling and machineries. 60% of the faults and errors occurred in the insulation system are due to partial discharge occurrence which damage the high voltage machines and equipment, leading to an incurrence of huge expenses to replace them. The focus of this research is on the electric field distribution inside stator bar insulation system machine related to partial discharge phenomena. This research is manifested through the study of high voltage stator bar insulation’s electric field and potential distribution, coupled with follow up investigations into the ramifications of cavities of different distinctive shapes and the impact of the different positioning and sizes of cavities on the insulation system. The Finite element method (FEM) is the method that will be utilized in analyzing such simulation of the high voltage stator bar with the COMSOL software. A 2D modelling of stator bar insulation is conducted for this research to enhance an advanced understanding into the response of electric field distribution corresponding to distinctive shapes, positions and sizes of cavities within the insulation of high voltage stator bar. This outcome of this research will contribute majorly to the electrical power industry through acknowledging the presence of cavities and high electric field distribution relational to partial discharge activities while minimizing or preventing any faulty breakdown in stator bar machine that causes costly power failure in generation, distribution and transmission of electricity. The results from this research shows that the shapes, locations and sizes of cavities have a major influence on the electric field distribution inside the stator bar insulation whereby the presence of ellipsoidal shapes cavities give rise of electric field intensity twice the original (when no cavity is present), followed by the unknown shapes cavities which contributes 72.31% increment and spherical cavity which brings about 54% rise in the electric field strength. In terms of locations of cavities, the nearer the cavities located to the conductor region (at the inner insulation surface) as well as the edgy parts of the geometry, the higher the electric field is established inside the cavities. Apart from that, as the sizes of cavities increases from 0.22mm to 1.10mm, the electric field stresses inside spherical, ellipsoidal and unknown cavities sustain a drop of 19.08%, 12.09% and 28.57% respectively. This result deduces that highest inhomogeneous electric field stress is detected inside unknown shape cavity which increases the risk of electrical breakdown in this shape of cavity.The insulation system represents one of the most critical elements in any high voltage equipment, inclusive of any cabling and machineries. 60% of the faults and errors occurred in the insulation system are due to partial discharge occurrence which damage th","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89833996","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}
M. Qomaruddin, Muhammad Sya’Ban Mubarak, S. Mulyono
The construction of greenhouse has not been built according to the existing climate. As a matter of fact, the expectation of meeting the quantity, quality and production continuity has not realized well or at optimum level. Thus, the efforts in improving the quality of greenhouse are necessary. One of the ways to do that is by increasing the control on the greenhouse in the matters of monitoring and controlling. The controlling in this case involves the air temperature, the air humidity, the soil moisture and the water distribution control. Therefore, through this study, a plant watering system will be created which enables it to control the air temperature, the soil moisture and the air humidity on the plants automatically. This system will be built based on IoT with Protocol of MQTT so that the system can be monitored and controlled from the distance in realtime. With the existence of IoT-based automation system with Protocol of MQTT on the plant sprinkler, it can increase the time efficiency, power and energy, as well as optimize the process of plant growth and development.The construction of greenhouse has not been built according to the existing climate. As a matter of fact, the expectation of meeting the quantity, quality and production continuity has not realized well or at optimum level. Thus, the efforts in improving the quality of greenhouse are necessary. One of the ways to do that is by increasing the control on the greenhouse in the matters of monitoring and controlling. The controlling in this case involves the air temperature, the air humidity, the soil moisture and the water distribution control. Therefore, through this study, a plant watering system will be created which enables it to control the air temperature, the soil moisture and the air humidity on the plants automatically. This system will be built based on IoT with Protocol of MQTT so that the system can be monitored and controlled from the distance in realtime. With the existence of IoT-based automation system with Protocol of MQTT on the plant sprinkler, it can increase the time efficiency, power and...
{"title":"Plant watering system on the basis of internet of things (IoT) with protocol of message queue telemetry transport (MQTT)","authors":"M. Qomaruddin, Muhammad Sya’Ban Mubarak, S. Mulyono","doi":"10.1063/1.5133918","DOIUrl":"https://doi.org/10.1063/1.5133918","url":null,"abstract":"The construction of greenhouse has not been built according to the existing climate. As a matter of fact, the expectation of meeting the quantity, quality and production continuity has not realized well or at optimum level. Thus, the efforts in improving the quality of greenhouse are necessary. One of the ways to do that is by increasing the control on the greenhouse in the matters of monitoring and controlling. The controlling in this case involves the air temperature, the air humidity, the soil moisture and the water distribution control. Therefore, through this study, a plant watering system will be created which enables it to control the air temperature, the soil moisture and the air humidity on the plants automatically. This system will be built based on IoT with Protocol of MQTT so that the system can be monitored and controlled from the distance in realtime. With the existence of IoT-based automation system with Protocol of MQTT on the plant sprinkler, it can increase the time efficiency, power and energy, as well as optimize the process of plant growth and development.The construction of greenhouse has not been built according to the existing climate. As a matter of fact, the expectation of meeting the quantity, quality and production continuity has not realized well or at optimum level. Thus, the efforts in improving the quality of greenhouse are necessary. One of the ways to do that is by increasing the control on the greenhouse in the matters of monitoring and controlling. The controlling in this case involves the air temperature, the air humidity, the soil moisture and the water distribution control. Therefore, through this study, a plant watering system will be created which enables it to control the air temperature, the soil moisture and the air humidity on the plants automatically. This system will be built based on IoT with Protocol of MQTT so that the system can be monitored and controlled from the distance in realtime. With the existence of IoT-based automation system with Protocol of MQTT on the plant sprinkler, it can increase the time efficiency, power and...","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86658798","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}
A. Abbas, Mohammed I. Habelalmateen, Syukran Jurdi, L. Audah, N. Alduais
{"title":"GPS based location monitoring system with geo-fencing capabilities","authors":"A. Abbas, Mohammed I. Habelalmateen, Syukran Jurdi, L. Audah, N. Alduais","doi":"10.1063/1.5133929","DOIUrl":"https://doi.org/10.1063/1.5133929","url":null,"abstract":"","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78940100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The development of acoustic system for noninvasive monitoring of blood perfusion","authors":"Hui Ling Chua, A. Huong, K. Tay","doi":"10.1063/1.5133934","DOIUrl":"https://doi.org/10.1063/1.5133934","url":null,"abstract":"","PeriodicalId":39047,"journal":{"name":"Journal of Electrical and Electronics Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87274570","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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