Hussain Attia - Academia.edu (original) (raw)

Papers by Hussain Attia

Clean Energy

This paper presents detailed design steps of an effective control system aiming to increase the s... more This paper presents detailed design steps of an effective control system aiming to increase the solar energy harvested via photovoltaic power-generation systems. The design of an intelligent maximum power point tracker (MPPT) supported by a robust sliding-mode (SM) controller is discussed in this study. The proposed control scheme is designed to track the MPP and provide a smooth system response by removing the overshoot in the load current during any variation in the connected load. Such a system is suitable for DC–DC buck converter applications. The study begins with modelling the buck converter for a continuous current mode operation. The reference voltage of the tracking system is produced by the proposed neural network (NN) algorithm. The proposed intelligent MPPT integrated with an SM controller is simulated in a MATLAB®/Simulink® platform. The simulation results are analysed to investigate and confirm the satisfaction level of the adopted four-serially connected PV-modules sy...

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BACKGROUND Although brief and acute psychoses are usually dramatic in presentation, they usually ... more BACKGROUND Although brief and acute psychoses are usually dramatic in presentation, they usually have benign course. Studies investigating clinical features and changes in diagnosis between psychotic episodes have differed in design. However, some consistent findings have emerged. This study seeks to clarify and extend these features by describing and comparing clinical diagnostic stability in a group of subjects with first episode psychosis diagnosed as acute psychotic disorder (psychogenic psychosis) followed up for 6 years. METHODS The study comprises a retrospective evaluation of case records of 161 patients admitted for the first time with first episode psychosis. Among this group a subgroup of 69 psychogenic psychoses were followed up with special reference to stability of diagnosis within a period of 6 years. RESULTS Forty-six patients (67.6%) were male, 22 (32.4%) were female and data were missing in one case-record. There was no significant statistical difference between ge...

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2016 5th International Conference on Electronic Devices, Systems and Applications (ICEDSA), 2016

This paper proposes an automated non-invasive multi-classifier system for skin cancer (melanoma) ... more This paper proposes an automated non-invasive multi-classifier system for skin cancer (melanoma) detection. The proposed system fuses the results obtained from three classification systems to enhance the melanoma detection rate. All of the classification systems use Support Vector Machine classifier. However, the image feature sets used in each classification system are different. The features sets used are Wavelets and Color features, Curvelets features and Grey Level Co-occurrence Matrices features. The output class labels or class probabilities of the three classification systems are combined using Majority Voting or Averaging Fusion to obtain enhanced classification rates. The dataset used include digital images for benign and malignant skin lesions. Experimental results show that the proposed multi-classifier fusion method outperforms standalone Skin Lesion classification systems in terms of recognition accuracy. Consequently, this can increase the chances of non-invasive melanoma detection from digital images.

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International journal of health sciences, 2009

Although brief and acute psychoses are usually dramatic in presentation, they usually have benign... more Although brief and acute psychoses are usually dramatic in presentation, they usually have benign course. Studies investigating clinical features and changes in diagnosis between psychotic episodes have differed in design. However, some consistent findings have emerged. This study seeks to clarify and extend these features by describing and comparing clinical diagnostic stability in a group of subjects with first episode psychosis diagnosed as acute psychotic disorder (psychogenic psychosis) followed up for 6 years. The study comprises a retrospective evaluation of case records of 161 patients admitted for the first time with first episode psychosis. Among this group a subgroup of 69 psychogenic psychoses were followed up with special reference to stability of diagnosis within a period of 6 years. Forty-six patients (67.6%) were male, 22 (32.4%) were female and data were missing in one case-record. There was no significant statistical difference between gender and diagnosis. The mea...

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ijhs.org.sa

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2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Localization is an imperative stage in building a routing matrix between nodes in Wireless Sensor... more Localization is an imperative stage in building a routing matrix between nodes in Wireless Sensors Network (WSN). It is essential for exchanging the measured Data in the network and making informed conclusions. This paper reviews the localization techniques for Wireless Sensor Networks Nodes. It presents a mathematical model for finding sensors locations based on Received Signal Strength Indicators (RSSI) and takes care of the measurement noise involved. It also carries out a comparison between centralized and decentralized localization in terms of the average consumed communication power by the network to achieve the localization of the nodes. Different scenarios are simulated by varying the geographical deployment area of the network and the number of nodes used. Evaluation results show that decentralized localization consumes less communication power and is more scalable than the centralized approach.

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Solar energy is clean, cheap, renewable, and abundantly available source of energy and hence many... more Solar energy is clean, cheap, renewable, and abundantly available source of energy and hence many researchers focus on the techniques of increasing absorption of solar power for different practical applications. Solar tracking system plays a major role in this field because of the importance of tracking the sun and increasing absorption of solar energy during the day light timing. This paper presents a new design, simulation as well as results of dual axis solar tracking system that is able to make the solar panel produce maximum power during its function. The design takes into account that all related electronic (transducers, controlling, and drive circuits) are supplied by an efficient designed and simulated DC power supply which is fed from the connected solar panel. The simulation results show that the dual axis tracker has better capability of tracking the sun light in two planes instead of single plane tracking of single axis tracker. The design of the proposed system depends ...

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2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Street dimming light systems have been proposed in many studies for energy saving. Based on this ... more Street dimming light systems have been proposed in many studies for energy saving. Based on this fact, this paper investigates the possibility of desired schemes of light dimming based on lookup table process and presents a comparative analysis in terms of electronic design and power enhancement with respect to each scheme. Pulse width modulation technique is adopted though a Boost DC-DC converter to provide the required load voltage for dimming purpose through a designed lookup data sequence with respect to the dimming trend. MATLAB/Simulink is used to simulate the proposed schemes, and to deliver the desired dimming shape for LED lamp 48V of rated power 90W. Simulation results clarify each dimming scheme compared to the conventional scheme in terms of enhancing the load power, and the effectiveness of the light dimming principle, and how avoiding the load power spikes during transition instants from dimming level to full load level.

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International Journal of Energy Economics and Policy

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2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Many research studies have focused on improving the performance of the solar photovoltaic PV syst... more Many research studies have focused on improving the performance of the solar photovoltaic PV systems by different means. From this point of view, this paper presents a new integrated standalone photovoltaic system which combines the merits of Neural Network for MPPT functioning, and the positive effect of water cooling treatment. The study proposes a detailed power requirements calculation of a DC appliances PV system. The presented system guarantees a reduction in the number of PV panels of more than 12%. MATLAB/Simulink based simulation results of the proposed system reflect the possibility of implementing a successful practical module.

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International Journal of Electrical and Computer Engineering, 2021

The single phase inverter performance through the unipolar and bipolar strategies has been previo... more The single phase inverter performance through the unipolar and bipolar strategies has been previously analyzed based on the constant switching frequency pulse width modulation (CSFPWM). However, the confined band variable switching frequency PWM (CB-VSFPWM) is currently proposed as a new variable switching frequency PWM technique through unipolar strategy to facilitate the design of high order filter, to reduce the switching losses, and to reduce the current total harmonics distortion (THD) as well. To evaluate the performance of a single phase inverter based on the CBVSFPWM through bipolar strategy, this paper presents a comparative study of the CB-VSFPWM based inverter performance using the unipolar PWM and the bipolar PWM strategies. The study adopts MATLAB/Simulink to simulate the inverter and to analyze the simulation results in terms of harmonics spectrum, total harmonic distortion (THD), and fundamental components. The analysis of the study results gives an indication about t...

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Wireless techniques based applications have rapidly increased due to the dramatic improvement of ... more Wireless techniques based applications have rapidly increased due to the dramatic improvement of modern technologies. Many remote monitoring and/or controlling systems are proposed and/or implemented based on different types of wireless communication technologies. Some of the remotely based systems adopt ZigBee communication protocol. Other systems are based on combinations of technologies such as GPS, and GSM. Some other wireless systems use the identification of dialed numbers in a touch-tone telephone based on Dual Tone Multi Frequency (DTMF) signaling. In this paper, we propose a wireless transceiver signaling system for the transfer of Radio Frequency Identification (RFID) code signals using Amplitude Shift Keying (ASK) digital modulation. Simulation results clearly show that the proposed design is effective and reliable mean for transferring RFID tag codes wirelessly.

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Automatic AC voltage regulation is a common domestic and industrial issue especially during loads... more Automatic AC voltage regulation is a common domestic and industrial issue especially during loads currents changing. Many solutions are presented in this side based on multi tap transformer, however in this solution the steps of voltage controlling equal to the number of taps of transformer. This paper proposes a new design of one step secondary winding transformer to provide three steps of AC voltage controlling and to cover the case of oscillating between two steps of output voltage that creating problem of surge at the regulator output terminals during controlling jumps between steps by relays contacts. In this work, the designed transformer will be used for increase and decrease the input AC voltage depending upon the continuous monitoring for the instantaneous value of the input voltage. The paper introduces full design and simulation results based on Multisim and PSIM 2-softwares.

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2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA), 2019

Ultrasonic waves transmitted through piezoelectric transducers has been widely used in many chemi... more Ultrasonic waves transmitted through piezoelectric transducers has been widely used in many chemical and industrial applications due to the bidirectional function of converting the electrical power to mechanical vibration. Different drivers have been proposed for the transducer to study the quality of the power signals in terms of controlling the output frequency and load voltage. However, the passive and nonlinear components of the driving system were shown to negatively affect the Total Harmonic Distortion (THD) and the system Power Factor (PF) of the connected grid. As a part of a wider research work related to the use of ultrasonic waves in chemical pollutants destruction, the ultrasonic generator and connected transducers, were to be tested in terms of the quality parameters of THD and PF, before further experimentation is performed. Considering these requirements, this paper propose a solution through inserting an intelligent controller based on Artificial Neural Network. The ...

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As the number of users using the mobile phones increases, new towers and hardware are required to... more As the number of users using the mobile phones increases, new towers and hardware are required to serve the new users. Accordingly, the people around become worry of the rapid increase of the antennas used by the cellular phone providers, especially when these towers are very close to their own houses, work place, etc., and they have no idea about such towers and the electromagnetic field (EMF) they emit. In our research, a comparison between our hand-measurements of the radiated power measured in watt per unit area and the universal standards of the radiated power is introduced. Our main results show that the radiated EMF power is extremely lower than the threshold severe powers. Moreover, even if the number of mobile service providers increases, there is still a large gap between the sever power (the power that might cause hazard to human in accordance with international standard limits) and the estimated power transmission. KeywordsElectromagnetic field; mobile systems; transmiss...

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Nowadays the importance and dependence on solar power source is remarkably increasing as there is... more Nowadays the importance and dependence on solar power source is remarkably increasing as there is a strong need to have clean, cheap and renewable energy compared with other types of energy sources. In this paper, we present a complete design and analysis of an electronic circuit that can be used for optimum solar energy absorption and tracking. The proposed electronic circuit will accurately track the sun light and face the solar panel in the direction of maximum solar energy absorption. The presented design starts with an array of light intensity photo sensors (Light Dependent Resistor (LDR)) followed by a number of processing steps to finally deliver a suitable dc voltage for driving a dc motor, which is required to move and align the solar panel to the direction of maximum solar intensity. There is a continuous controlling and tracking functions using the light intensity information from the three photo sensors. The presented design is implemented using an Op-Amp and general pur...

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Modern street lighting systems are demonstrating capability of saving energy through light dimmin... more Modern street lighting systems are demonstrating capability of saving energy through light dimming in the case of no vehicle motion. Continuous monitoring of street lamps is essential to ensure the reliability of street lighting systems. This study presents a new electronic design and implantation of a wireless diagnostic system which is capable of continuously measuring the lamp current and detecting faulty lamps. The system sends a warning SMS message to the authorized person reporting the status of the lamps as either working properly or faulty. The presented diagnostic system includes Global System for Mobile Communication (GSM) with Subscriber Identity Module (SIM) card connected to the Arduino unit to allow SMS messaging. The implemented system characterizes the capability of scaling and controllable time response.

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2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Gained power from the photovoltaic solar panel is a main factor reflects the panel performance. T... more Gained power from the photovoltaic solar panel is a main factor reflects the panel performance. This factor is affected by many parameters. Dust density, light intensity as well as ambient temperature have direct effect on the panel performance. The aim of this paper is to study the effect of the mentioned parameters on panel effectiveness through designing and implementing a simple and easy use electronic monitoring system. The system offers continuous monitoring and measuring to the mentioned parameters in addition to the output power of the solar panel. The collected records are reflecting and confirming the matching of the changing in the environmental parameters with respect to the collected power. The records are representing an effective reference of work conditions of solar panels in the GCC region. System design and implementation in addition to the collected records, analysis and conclusion are presented in this paper.

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Practice, Progress, and Proficiency in Sustainability

This chapter explains the positive impacts of the smart microgrid with respect to the sustainable... more This chapter explains the positive impacts of the smart microgrid with respect to the sustainable building performance. The role of the renewable energy sources within the microgrid is also demonstrated. The solar photovoltaic energy source is explained in terms of the working principle and positive effects on reducing CO2 emission through reducing the needs of the traditional power stations' electricity. This chapter explains the advantages of the smart microgrid power system and how reflects on the performance of a sustainable building. The differences between the components of a DC smart grid system and of an AC smart grid system are shown. Different algorithms for maximum power point tracking (MPPT) to improve the PV systems have reviewed in this chapter. A step-by-step overall design of any desired single-phase or three-phase alternating power of any capacity for a PV matrix-based microgrid system, in addition to the role and the importance of inserting DC-DC converter in t...

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International Journal of Power Electronics and Drive Systems (IJPEDS)

Solar panels have undergone several tests through research studies for the purpose of improving p... more Solar panels have undergone several tests through research studies for the purpose of improving performance to increase the resulting electrical power. This study considers the fact of the necessity of Maximum Power Point Tracking working conditions of the PV panels to harvest maximum electrical power during the weather variations. It considers also the panel temperature reduction which affects positively the panel ability in terms of producing additional electrical power. By this consideration, this study proposes a new design, and simulation results with analysis of a hybrid PV system. The system is able to deliver 5 kW, through the day hours, with less number of PV panels based on a hybrid technique. The proposed technique combines two manipulating processes. The first one guarantees the Maximum Power Point Tracking (MPPT) condition during day hours through an artificial Neural Network (ANN) controller. Whereas the second one focuses on reducing the panel temperature by introduci...

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Clean Energy

This paper presents detailed design steps of an effective control system aiming to increase the s... more This paper presents detailed design steps of an effective control system aiming to increase the solar energy harvested via photovoltaic power-generation systems. The design of an intelligent maximum power point tracker (MPPT) supported by a robust sliding-mode (SM) controller is discussed in this study. The proposed control scheme is designed to track the MPP and provide a smooth system response by removing the overshoot in the load current during any variation in the connected load. Such a system is suitable for DC–DC buck converter applications. The study begins with modelling the buck converter for a continuous current mode operation. The reference voltage of the tracking system is produced by the proposed neural network (NN) algorithm. The proposed intelligent MPPT integrated with an SM controller is simulated in a MATLAB®/Simulink® platform. The simulation results are analysed to investigate and confirm the satisfaction level of the adopted four-serially connected PV-modules sy...

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BACKGROUND Although brief and acute psychoses are usually dramatic in presentation, they usually ... more BACKGROUND Although brief and acute psychoses are usually dramatic in presentation, they usually have benign course. Studies investigating clinical features and changes in diagnosis between psychotic episodes have differed in design. However, some consistent findings have emerged. This study seeks to clarify and extend these features by describing and comparing clinical diagnostic stability in a group of subjects with first episode psychosis diagnosed as acute psychotic disorder (psychogenic psychosis) followed up for 6 years. METHODS The study comprises a retrospective evaluation of case records of 161 patients admitted for the first time with first episode psychosis. Among this group a subgroup of 69 psychogenic psychoses were followed up with special reference to stability of diagnosis within a period of 6 years. RESULTS Forty-six patients (67.6%) were male, 22 (32.4%) were female and data were missing in one case-record. There was no significant statistical difference between ge...

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2016 5th International Conference on Electronic Devices, Systems and Applications (ICEDSA), 2016

This paper proposes an automated non-invasive multi-classifier system for skin cancer (melanoma) ... more This paper proposes an automated non-invasive multi-classifier system for skin cancer (melanoma) detection. The proposed system fuses the results obtained from three classification systems to enhance the melanoma detection rate. All of the classification systems use Support Vector Machine classifier. However, the image feature sets used in each classification system are different. The features sets used are Wavelets and Color features, Curvelets features and Grey Level Co-occurrence Matrices features. The output class labels or class probabilities of the three classification systems are combined using Majority Voting or Averaging Fusion to obtain enhanced classification rates. The dataset used include digital images for benign and malignant skin lesions. Experimental results show that the proposed multi-classifier fusion method outperforms standalone Skin Lesion classification systems in terms of recognition accuracy. Consequently, this can increase the chances of non-invasive melanoma detection from digital images.

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International journal of health sciences, 2009

Although brief and acute psychoses are usually dramatic in presentation, they usually have benign... more Although brief and acute psychoses are usually dramatic in presentation, they usually have benign course. Studies investigating clinical features and changes in diagnosis between psychotic episodes have differed in design. However, some consistent findings have emerged. This study seeks to clarify and extend these features by describing and comparing clinical diagnostic stability in a group of subjects with first episode psychosis diagnosed as acute psychotic disorder (psychogenic psychosis) followed up for 6 years. The study comprises a retrospective evaluation of case records of 161 patients admitted for the first time with first episode psychosis. Among this group a subgroup of 69 psychogenic psychoses were followed up with special reference to stability of diagnosis within a period of 6 years. Forty-six patients (67.6%) were male, 22 (32.4%) were female and data were missing in one case-record. There was no significant statistical difference between gender and diagnosis. The mea...

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ijhs.org.sa

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2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Localization is an imperative stage in building a routing matrix between nodes in Wireless Sensor... more Localization is an imperative stage in building a routing matrix between nodes in Wireless Sensors Network (WSN). It is essential for exchanging the measured Data in the network and making informed conclusions. This paper reviews the localization techniques for Wireless Sensor Networks Nodes. It presents a mathematical model for finding sensors locations based on Received Signal Strength Indicators (RSSI) and takes care of the measurement noise involved. It also carries out a comparison between centralized and decentralized localization in terms of the average consumed communication power by the network to achieve the localization of the nodes. Different scenarios are simulated by varying the geographical deployment area of the network and the number of nodes used. Evaluation results show that decentralized localization consumes less communication power and is more scalable than the centralized approach.

Bookmarks Related papers MentionsView impact

Solar energy is clean, cheap, renewable, and abundantly available source of energy and hence many... more Solar energy is clean, cheap, renewable, and abundantly available source of energy and hence many researchers focus on the techniques of increasing absorption of solar power for different practical applications. Solar tracking system plays a major role in this field because of the importance of tracking the sun and increasing absorption of solar energy during the day light timing. This paper presents a new design, simulation as well as results of dual axis solar tracking system that is able to make the solar panel produce maximum power during its function. The design takes into account that all related electronic (transducers, controlling, and drive circuits) are supplied by an efficient designed and simulated DC power supply which is fed from the connected solar panel. The simulation results show that the dual axis tracker has better capability of tracking the sun light in two planes instead of single plane tracking of single axis tracker. The design of the proposed system depends ...

Bookmarks Related papers MentionsView impact

2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Street dimming light systems have been proposed in many studies for energy saving. Based on this ... more Street dimming light systems have been proposed in many studies for energy saving. Based on this fact, this paper investigates the possibility of desired schemes of light dimming based on lookup table process and presents a comparative analysis in terms of electronic design and power enhancement with respect to each scheme. Pulse width modulation technique is adopted though a Boost DC-DC converter to provide the required load voltage for dimming purpose through a designed lookup data sequence with respect to the dimming trend. MATLAB/Simulink is used to simulate the proposed schemes, and to deliver the desired dimming shape for LED lamp 48V of rated power 90W. Simulation results clarify each dimming scheme compared to the conventional scheme in terms of enhancing the load power, and the effectiveness of the light dimming principle, and how avoiding the load power spikes during transition instants from dimming level to full load level.

Bookmarks Related papers MentionsView impact

International Journal of Energy Economics and Policy

Bookmarks Related papers MentionsView impact

2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Many research studies have focused on improving the performance of the solar photovoltaic PV syst... more Many research studies have focused on improving the performance of the solar photovoltaic PV systems by different means. From this point of view, this paper presents a new integrated standalone photovoltaic system which combines the merits of Neural Network for MPPT functioning, and the positive effect of water cooling treatment. The study proposes a detailed power requirements calculation of a DC appliances PV system. The presented system guarantees a reduction in the number of PV panels of more than 12%. MATLAB/Simulink based simulation results of the proposed system reflect the possibility of implementing a successful practical module.

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International Journal of Electrical and Computer Engineering, 2021

The single phase inverter performance through the unipolar and bipolar strategies has been previo... more The single phase inverter performance through the unipolar and bipolar strategies has been previously analyzed based on the constant switching frequency pulse width modulation (CSFPWM). However, the confined band variable switching frequency PWM (CB-VSFPWM) is currently proposed as a new variable switching frequency PWM technique through unipolar strategy to facilitate the design of high order filter, to reduce the switching losses, and to reduce the current total harmonics distortion (THD) as well. To evaluate the performance of a single phase inverter based on the CBVSFPWM through bipolar strategy, this paper presents a comparative study of the CB-VSFPWM based inverter performance using the unipolar PWM and the bipolar PWM strategies. The study adopts MATLAB/Simulink to simulate the inverter and to analyze the simulation results in terms of harmonics spectrum, total harmonic distortion (THD), and fundamental components. The analysis of the study results gives an indication about t...

Bookmarks Related papers MentionsView impact

Wireless techniques based applications have rapidly increased due to the dramatic improvement of ... more Wireless techniques based applications have rapidly increased due to the dramatic improvement of modern technologies. Many remote monitoring and/or controlling systems are proposed and/or implemented based on different types of wireless communication technologies. Some of the remotely based systems adopt ZigBee communication protocol. Other systems are based on combinations of technologies such as GPS, and GSM. Some other wireless systems use the identification of dialed numbers in a touch-tone telephone based on Dual Tone Multi Frequency (DTMF) signaling. In this paper, we propose a wireless transceiver signaling system for the transfer of Radio Frequency Identification (RFID) code signals using Amplitude Shift Keying (ASK) digital modulation. Simulation results clearly show that the proposed design is effective and reliable mean for transferring RFID tag codes wirelessly.

Bookmarks Related papers MentionsView impact

Automatic AC voltage regulation is a common domestic and industrial issue especially during loads... more Automatic AC voltage regulation is a common domestic and industrial issue especially during loads currents changing. Many solutions are presented in this side based on multi tap transformer, however in this solution the steps of voltage controlling equal to the number of taps of transformer. This paper proposes a new design of one step secondary winding transformer to provide three steps of AC voltage controlling and to cover the case of oscillating between two steps of output voltage that creating problem of surge at the regulator output terminals during controlling jumps between steps by relays contacts. In this work, the designed transformer will be used for increase and decrease the input AC voltage depending upon the continuous monitoring for the instantaneous value of the input voltage. The paper introduces full design and simulation results based on Multisim and PSIM 2-softwares.

Bookmarks Related papers MentionsView impact

2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA), 2019

Ultrasonic waves transmitted through piezoelectric transducers has been widely used in many chemi... more Ultrasonic waves transmitted through piezoelectric transducers has been widely used in many chemical and industrial applications due to the bidirectional function of converting the electrical power to mechanical vibration. Different drivers have been proposed for the transducer to study the quality of the power signals in terms of controlling the output frequency and load voltage. However, the passive and nonlinear components of the driving system were shown to negatively affect the Total Harmonic Distortion (THD) and the system Power Factor (PF) of the connected grid. As a part of a wider research work related to the use of ultrasonic waves in chemical pollutants destruction, the ultrasonic generator and connected transducers, were to be tested in terms of the quality parameters of THD and PF, before further experimentation is performed. Considering these requirements, this paper propose a solution through inserting an intelligent controller based on Artificial Neural Network. The ...

Bookmarks Related papers MentionsView impact

As the number of users using the mobile phones increases, new towers and hardware are required to... more As the number of users using the mobile phones increases, new towers and hardware are required to serve the new users. Accordingly, the people around become worry of the rapid increase of the antennas used by the cellular phone providers, especially when these towers are very close to their own houses, work place, etc., and they have no idea about such towers and the electromagnetic field (EMF) they emit. In our research, a comparison between our hand-measurements of the radiated power measured in watt per unit area and the universal standards of the radiated power is introduced. Our main results show that the radiated EMF power is extremely lower than the threshold severe powers. Moreover, even if the number of mobile service providers increases, there is still a large gap between the sever power (the power that might cause hazard to human in accordance with international standard limits) and the estimated power transmission. KeywordsElectromagnetic field; mobile systems; transmiss...

Bookmarks Related papers MentionsView impact

Nowadays the importance and dependence on solar power source is remarkably increasing as there is... more Nowadays the importance and dependence on solar power source is remarkably increasing as there is a strong need to have clean, cheap and renewable energy compared with other types of energy sources. In this paper, we present a complete design and analysis of an electronic circuit that can be used for optimum solar energy absorption and tracking. The proposed electronic circuit will accurately track the sun light and face the solar panel in the direction of maximum solar energy absorption. The presented design starts with an array of light intensity photo sensors (Light Dependent Resistor (LDR)) followed by a number of processing steps to finally deliver a suitable dc voltage for driving a dc motor, which is required to move and align the solar panel to the direction of maximum solar intensity. There is a continuous controlling and tracking functions using the light intensity information from the three photo sensors. The presented design is implemented using an Op-Amp and general pur...

Bookmarks Related papers MentionsView impact

Modern street lighting systems are demonstrating capability of saving energy through light dimmin... more Modern street lighting systems are demonstrating capability of saving energy through light dimming in the case of no vehicle motion. Continuous monitoring of street lamps is essential to ensure the reliability of street lighting systems. This study presents a new electronic design and implantation of a wireless diagnostic system which is capable of continuously measuring the lamp current and detecting faulty lamps. The system sends a warning SMS message to the authorized person reporting the status of the lamps as either working properly or faulty. The presented diagnostic system includes Global System for Mobile Communication (GSM) with Subscriber Identity Module (SIM) card connected to the Arduino unit to allow SMS messaging. The implemented system characterizes the capability of scaling and controllable time response.

Bookmarks Related papers MentionsView impact

2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

Gained power from the photovoltaic solar panel is a main factor reflects the panel performance. T... more Gained power from the photovoltaic solar panel is a main factor reflects the panel performance. This factor is affected by many parameters. Dust density, light intensity as well as ambient temperature have direct effect on the panel performance. The aim of this paper is to study the effect of the mentioned parameters on panel effectiveness through designing and implementing a simple and easy use electronic monitoring system. The system offers continuous monitoring and measuring to the mentioned parameters in addition to the output power of the solar panel. The collected records are reflecting and confirming the matching of the changing in the environmental parameters with respect to the collected power. The records are representing an effective reference of work conditions of solar panels in the GCC region. System design and implementation in addition to the collected records, analysis and conclusion are presented in this paper.

Bookmarks Related papers MentionsView impact

Practice, Progress, and Proficiency in Sustainability

This chapter explains the positive impacts of the smart microgrid with respect to the sustainable... more This chapter explains the positive impacts of the smart microgrid with respect to the sustainable building performance. The role of the renewable energy sources within the microgrid is also demonstrated. The solar photovoltaic energy source is explained in terms of the working principle and positive effects on reducing CO2 emission through reducing the needs of the traditional power stations' electricity. This chapter explains the advantages of the smart microgrid power system and how reflects on the performance of a sustainable building. The differences between the components of a DC smart grid system and of an AC smart grid system are shown. Different algorithms for maximum power point tracking (MPPT) to improve the PV systems have reviewed in this chapter. A step-by-step overall design of any desired single-phase or three-phase alternating power of any capacity for a PV matrix-based microgrid system, in addition to the role and the importance of inserting DC-DC converter in t...

Bookmarks Related papers MentionsView impact

International Journal of Power Electronics and Drive Systems (IJPEDS)

Solar panels have undergone several tests through research studies for the purpose of improving p... more Solar panels have undergone several tests through research studies for the purpose of improving performance to increase the resulting electrical power. This study considers the fact of the necessity of Maximum Power Point Tracking working conditions of the PV panels to harvest maximum electrical power during the weather variations. It considers also the panel temperature reduction which affects positively the panel ability in terms of producing additional electrical power. By this consideration, this study proposes a new design, and simulation results with analysis of a hybrid PV system. The system is able to deliver 5 kW, through the day hours, with less number of PV panels based on a hybrid technique. The proposed technique combines two manipulating processes. The first one guarantees the Maximum Power Point Tracking (MPPT) condition during day hours through an artificial Neural Network (ANN) controller. Whereas the second one focuses on reducing the panel temperature by introduci...

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