Jasim Abdullah Ghaeb
The Dean, Faculty of Engineering, P.O. Box: 1,
Philadelphia University, JORDAN, 19392.
Tel (work): +962-6-4799000 ext: 2330,
Fax: +962-6-4799037
Tel(mobile): +962-777-460870
Email: عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته., عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.
Philadelphia University, JORDAN, 19392.
Tel (work): +962-6-4799000 ext: 2330,
Fax: +962-6-4799037
Tel(mobile): +962-777-460870
Email: عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته., عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.
Electrical Machines:
Power Electronics:
Selected Papers:
2016 13th International Multi-Conference on Systems, Signals Devices
Leipzig, Germany, March 21 - 24, 2016.
Sampled Data and Space Vector Technique for Static VAR Compensation
Jasim A. Ghaeb
Faculty of Engineering, Philadelphia University, P.O.Box 19392, Amman, Jordan.
Abstract:
This paper presents a new method named Sampled Data and Space Vector Technique (SDSV) to control the three-phase voltages subjected to load changes. The proposed SDSV uses the on record and measured three-phase voltages to obtain the reference space vector (SVr) and measured one (SVm), respectively at different samples. The two space vectors SVr and SVm are compared at regular samples of the system sinusoidal cycle, to generate an error. This error is employed to produce the new reactive power of compensator in a small period of time rather than waiting for a complete system sinusoidal cycle, thereby allowing a quick and an efficient Volt- Ampere Reactive (VAR) control for the three-phase load voltages.
British Journal of Mathematics Computer Science
12(3): 1-13, 2016, Article no.BJMCS.20700
ISSN: 2231-0851
Individual Character Comparison Technique for Improving the Internal Memory Performance
Jasim A. Ghaeb
Faculty of Engineering, Philadelphia University, P.O.Box 19392, Amman, Jordan.
Abstract:
The efficiency of the cache mapping technique depends on how the cache lines are organized and the way that is used to look for and hit the target cache line. In this paper, an efficient technique is proposed to obtain a significant improvement in average hit time of a line in the cache. The paper presents Distributive Comparison Approach (DCA) that significantly minimizes the hit time and improve cache hit ratio. The efficient of DCA is based on how the cache lines are compared and picked up the coveted one leading to a low cache hit ratio. In DCA, the cache line is assigned by multi tags where each individual tag is only one character. Then, instead of one line tag of complete characters per a comparison cycle, the comparator is flushed by multi tags of different lines in the cache. Also the cache lines that are come from the main memory classified into two groups; even and odd line's tags to reject the unwanted lines form the multi-tag comparison. These two procedures practically speed up the repelling of misfit tagged lines and consequently the hitting of the target line in the cache. Simulation results show that the DCA outperforms well-known mapping techniques including FAMT and SMT.
Elsevier, Energy Conversion and Management 52 (2011) 3309- 3318
Progressive Decrement PWM Algorithm for Minimum Mean Square Error Inverter Output Voltage
J. A. Ghaeb, M. A. Smadi and M Ababneh*
The Hashemite University, Department of Electrical Engineering,
P.O.Box 150459, Zerqa 13115, Jordan. * Dept. of Mechatronics Engineering.
Abstract:
The paper proposes two modulation techniques for the power inverter. These new techniques are named Progressive Decrement PWM Algorithm (PDPA) and Progressive Increment PWM Algorithm (PIPA). Both techniques take the determined original pulse-width of an inverter operation and split it to many pulses. In the PDPA technique, the largest width is given to the middle pulse and the width of the boundary pulses is reduced progressively starting from the first boundary-pulse toward the last boundary-pulse. In the PIPA technique, there is a gradual increment instead of decrement. The two techniques have been proved that it can maintain the original pulse-width of the inverter operation. The new approach PDPA extends the central pulse and shrinks the exterior pulses, leading to an inverter output cycle close to the sinusoidal form of fewer harmonic contents. Simulation results are performed to evaluate the performances of the proposed techniques: PDPA and PIPA and to compare them with the well known methods. The main contribution of the proposed PDPA technique is that it provides a better performance for the most harmonic orders compared to the well established sinusoidal PWM technique.
Elsevier, Future Generation Computer Systems 27 (2011) 614- 619
A High Performance Data Integrity Assurance Based on Determinant Technique
J. A. Ghaeba, M. A. Smadia and J. Chebilb
aDept. of Electrical Engineering, Hashemite University, P.O. Box 150459, Zerqa 13115, Jordan.
bECE Dep., International Islamic University, P.O. Box 10, 50728 Kuala Lumpur, Malaysia.
Abstract:
Data integrity is an important aspect of storage and network security. The reality is that no security strategy is achieved without assuring the data integrity. Data assurance provides reliability which is prerequisite for most computer systems and network applications. This paper proposes a new technique for improving the detection of data integrity violations. The proposed technique is based on the Check Determinant Factor (CDF) in measuring the data integrity assurance. It involves appending of a Determinant Factor (DF) for each data matrix before storing or transmitting the series of data. This DF is recomputed at the retrieved stage to insure data integrity. Simulation results show that the new method outperforms the traditional methods such as Hamming code and RAID methods.
Elsevier, Computer and security 28 (2009) 94-99
An Oblique-Matrix Technique for Data Integrity Assurance
J. A. Ghaeb, J. Chebil
The Hashemite University, Department of Electrical and Computer Engineering,
P.O. Box 150459, Zarqa 13115, Jordan.
Abstract:
Data integrity is insuring that the data retrieved is the same as the data stored or transmitted. It is an important aspect of storage security and reliability which are prerequisite for most computer system applications. This paper proposes a new technique for improving the detection of data integrity violations. The method is based on check determinant approach. Each block of data is arranged in a matrix form, and then into its corresponding oblique matrix. Because of the new arrangement in the block elements through the oblique matrix, a powerful error detection mechanism is obtained. Simulation results show that the new method outperforms the traditional techniques.
Wiley, European Transactions on Electrical Power, Volume 20, Issue 6, Sept.2010.
High Performance Reactive Control for Unbalanced Three Phase Load.
Jasim. A. Ghaeb, Osama. M. Aloquili
Dept. of Electrical Engineering, Hashemite University, P.O. Box 150459, Zerqa 13115, Jordan.
Abstract:
In this paper we consider the problem of balancing a three-phase load and how to optimize the TCR operation. For an unbalanced load change a VAT technique is developed by the authors to determine the three compensating susceptance values and then the unsymmetrical firing angles of TCR, which are necessary for a balanced load operation. An objective function (THD) is determined to measure the discontinuity of the TCR operation. For an unbalanced load change, the availability of TSC and the control of TCR produce different values of reactive voltamperes, in which all produce the balanced operation but with different amounts of harmonics. The paper introduces and develops an iterative algorithm to obtain the optimum firing angle values of TCR, and this is based on minimum generation of harmonics. The results show that a modulated THD is achieved, and this approach guarantees the high performance reactive control for unbalanced three-phase load.
2016 13th International Multi-Conference on Systems, Signals Devices
Leipzig, Germany, March 21 - 24, 2016.
Sampled Data and Space Vector Technique for Static VAR Compensation
Jasim A. Ghaeb
Faculty of Engineering, Philadelphia University, P.O.Box 19392, Amman, Jordan.
Abstract:
This paper presents a new method named Sampled Data and Space Vector Technique (SDSV) to control the three-phase voltages subjected to load changes. The proposed SDSV uses the on record and measured three-phase voltages to obtain the reference space vector (SVr) and measured one (SVm), respectively at different samples. The two space vectors SVr and SVm are compared at regular samples of the system sinusoidal cycle, to generate an error. This error is employed to produce the new reactive power of compensator in a small period of time rather than waiting for a complete system sinusoidal cycle, thereby allowing a quick and an efficient Volt- Ampere Reactive (VAR) control for the three-phase load voltages.
British Journal of Mathematics Computer Science
12(3): 1-13, 2016, Article no.BJMCS.20700
ISSN: 2231-0851
Individual Character Comparison Technique for Improving the Internal Memory Performance
Jasim A. Ghaeb
Faculty of Engineering, Philadelphia University, P.O.Box 19392, Amman, Jordan.
Abstract:
The efficiency of the cache mapping technique depends on how the cache lines are organized and the way that is used to look for and hit the target cache line. In this paper, an efficient technique is proposed to obtain a significant improvement in average hit time of a line in the cache. The paper presents Distributive Comparison Approach (DCA) that significantly minimizes the hit time and improve cache hit ratio. The efficient of DCA is based on how the cache lines are compared and picked up the coveted one leading to a low cache hit ratio. In DCA, the cache line is assigned by multi tags where each individual tag is only one character. Then, instead of one line tag of complete characters per a comparison cycle, the comparator is flushed by multi tags of different lines in the cache. Also the cache lines that are come from the main memory classified into two groups; even and odd line's tags to reject the unwanted lines form the multi-tag comparison. These two procedures practically speed up the repelling of misfit tagged lines and consequently the hitting of the target line in the cache. Simulation results show that the DCA outperforms well-known mapping techniques including FAMT and SMT.
Elsevier, Energy Conversion and Management 52 (2011) 3309- 3318
Progressive Decrement PWM Algorithm for Minimum Mean Square Error Inverter Output Voltage
J. A. Ghaeb, M. A. Smadi and M Ababneh*
The Hashemite University, Department of Electrical Engineering,
P.O.Box 150459, Zerqa 13115, Jordan. * Dept. of Mechatronics Engineering.
Abstract:
The paper proposes two modulation techniques for the power inverter. These new techniques are named Progressive Decrement PWM Algorithm (PDPA) and Progressive Increment PWM Algorithm (PIPA). Both techniques take the determined original pulse-width of an inverter operation and split it to many pulses. In the PDPA technique, the largest width is given to the middle pulse and the width of the boundary pulses is reduced progressively starting from the first boundary-pulse toward the last boundary-pulse. In the PIPA technique, there is a gradual increment instead of decrement. The two techniques have been proved that it can maintain the original pulse-width of the inverter operation. The new approach PDPA extends the central pulse and shrinks the exterior pulses, leading to an inverter output cycle close to the sinusoidal form of fewer harmonic contents. Simulation results are performed to evaluate the performances of the proposed techniques: PDPA and PIPA and to compare them with the well known methods. The main contribution of the proposed PDPA technique is that it provides a better performance for the most harmonic orders compared to the well established sinusoidal PWM technique.
Elsevier, Future Generation Computer Systems 27 (2011) 614- 619
A High Performance Data Integrity Assurance Based on Determinant Technique
J. A. Ghaeba, M. A. Smadia and J. Chebilb
aDept. of Electrical Engineering, Hashemite University, P.O. Box 150459, Zerqa 13115, Jordan.
bECE Dep., International Islamic University, P.O. Box 10, 50728 Kuala Lumpur, Malaysia.
Abstract:
Data integrity is an important aspect of storage and network security. The reality is that no security strategy is achieved without assuring the data integrity. Data assurance provides reliability which is prerequisite for most computer systems and network applications. This paper proposes a new technique for improving the detection of data integrity violations. The proposed technique is based on the Check Determinant Factor (CDF) in measuring the data integrity assurance. It involves appending of a Determinant Factor (DF) for each data matrix before storing or transmitting the series of data. This DF is recomputed at the retrieved stage to insure data integrity. Simulation results show that the new method outperforms the traditional methods such as Hamming code and RAID methods.
Elsevier, Computer and security 28 (2009) 94-99
An Oblique-Matrix Technique for Data Integrity Assurance
J. A. Ghaeb, J. Chebil
The Hashemite University, Department of Electrical and Computer Engineering,
P.O. Box 150459, Zarqa 13115, Jordan.
Abstract:
Data integrity is insuring that the data retrieved is the same as the data stored or transmitted. It is an important aspect of storage security and reliability which are prerequisite for most computer system applications. This paper proposes a new technique for improving the detection of data integrity violations. The method is based on check determinant approach. Each block of data is arranged in a matrix form, and then into its corresponding oblique matrix. Because of the new arrangement in the block elements through the oblique matrix, a powerful error detection mechanism is obtained. Simulation results show that the new method outperforms the traditional techniques.
Wiley, European Transactions on Electrical Power, Volume 20, Issue 6, Sept.2010.
High Performance Reactive Control for Unbalanced Three Phase Load.
Jasim. A. Ghaeb, Osama. M. Aloquili
Dept. of Electrical Engineering, Hashemite University, P.O. Box 150459, Zerqa 13115, Jordan.
Abstract:
In this paper we consider the problem of balancing a three-phase load and how to optimize the TCR operation. For an unbalanced load change a VAT technique is developed by the authors to determine the three compensating susceptance values and then the unsymmetrical firing angles of TCR, which are necessary for a balanced load operation. An objective function (THD) is determined to measure the discontinuity of the TCR operation. For an unbalanced load change, the availability of TSC and the control of TCR produce different values of reactive voltamperes, in which all produce the balanced operation but with different amounts of harmonics. The paper introduces and develops an iterative algorithm to obtain the optimum firing angle values of TCR, and this is based on minimum generation of harmonics. The results show that a modulated THD is achieved, and this approach guarantees the high performance reactive control for unbalanced three-phase load.
Faculty of Engineering, Department of Mechatronics Engineering,
P.O. Box: 1, Philadelphia University, JORDAN, 19392.
Tel (work): +962-6-4799000 ext: 2590,
Tel(mobile): +962-796254474
Emails: عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.
عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.
P.O. Box: 1, Philadelphia University, JORDAN, 19392.
Tel (work): +962-6-4799000 ext: 2590,
Tel(mobile): +962-796254474
Emails: عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.
عنوان البريد الإلكتروني هذا محمي من روبوتات السبام. يجب عليك تفعيل الجافاسكربت لرؤيته.