Fouad Soliman | Egyptian Nuclear Materials Authority. (original) (raw)
Papers by Fouad Soliman
The Egyptian Journal of Hospital Medicine
Background: Regional anesthesia techniques as a caudal epidural block (CEB) are commonly used to ... more Background: Regional anesthesia techniques as a caudal epidural block (CEB) are commonly used to help with pain control during pediatric surgeries, decrease parenteral analgesics requirement, and improve the quality of postoperative pain control and general satisfaction of patient parents. Transversus abdominis plane (TAP) block is an evolving modality of regional anesthetic techniques for the abdominal wall. Objective: The aim of the current study was to compare the analgesic effect of CEB versus TAP block in pediatrics undergoing infraumblical surgeries. Patients and methods: A total of 120 kids between the ages of 4 and 7 years old who needed infraumbilical procedures were divided into two groups of 60 patients. Group (1) received caudal epidural block using Plain bupivacaine 0.25 % 1 ml/kg, and Group (2) received ultrasound-guided TAP block using plain bupivacaine 0.25% 1 ml/kg. Follow up postoperative pain using Faces Pain Scale-Revised, vital signs, first rescue analgesia, the total dose of paracetamol needed, and complications. Results: At 8 and 18 hours postoperatively, Group (1) had substantially lower pain scores on the Faces pain scale-revised, reduced heart rate and mean arterial pressure compared to Group (2). Group (1) had a considerably later time to first rescue analgesia with less paracetamol use than Group (2). There was no discernible difference in postoperative complications between groups (1) and (2). Conclusion: At 6-24 hours after block placement, caudal block provides superior analgesia compared to TAP block in children undergoing lower abdominal surgeries. Caudal block is an effective, feasible, and safe option for postoperative analgesia, especially when compared to TAP block.
Nuclear Engineering and Technology, 2016
The present paper reports on a trial to shed further light on the characterization, applications,... more The present paper reports on a trial to shed further light on the characterization, applications, and operation of radar speed guns or Gunn diodes on different radiation environments of neutron or g fields. To this end, theoretical and experimental investigations of microwave oscillating system for outer-space applications were carried out. Radiation effects on the transient parameters and electrical properties of the proposed devices have been studied in detail with the application of computer programming. Also, the oscillation parameters, power characteristics, and bias current were plotted under the influence of different g and neutron irradiation levels. Finally, shelf or oven annealing processes were shown to be satisfactory techniques to recover the initial characteristics of the irradiated devices.
Nuclear Engineering and Technology, 2016
Nuclear Engineering and Technology, 2016
The present paper reports on a trial to shed further light on the characterization, applications,... more The present paper reports on a trial to shed further light on the characterization, applications, and operation of radar speed guns or Gunn diodes on different radiation environments of neutron or g fields. To this end, theoretical and experimental investigations of microwave oscillating system for outer-space applications were carried out. Radiation effects on the transient parameters and electrical properties of the proposed devices have been studied in detail with the application of computer programming. Also, the oscillation parameters, power characteristics, and bias current were plotted under the influence of different g and neutron irradiation levels. Finally, shelf or oven annealing processes were shown to be satisfactory techniques to recover the initial characteristics of the irradiated devices.
Mechatronics is a multidisciplinary field of science that includes a combination of mechanical en... more Mechatronics is a multidisciplinary field of science that includes a combination of mechanical engineering, electronics, computer engineering, telecommunications engineering, systems engineering and control engineering. As technology advances, the subfields of engineering multiply and adapt. Mechatronics' aim is a design process that unifies these subfields. Originally, mechatronics just included the combination of mechanics and electronics, therefore the word is a combination of mechanics and electronics; however, as technical systems have become more and more complex the definition has been broadened to include more technical areas. The word "mechatronics" originated in Japanese-English and was created by Tetsuro Mori, an engineer of Yaskawa Electric Corporation. The word "mechatronics" was registered as trade mark by the company in Japan with the registration number of "46-32714" in 1971. However, afterward the company released the right of using...
Proceedings of the 24th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, 2018
We present a novel order dispatch algorithm in large-scale on-demand ride-hailing platforms. Whil... more We present a novel order dispatch algorithm in large-scale on-demand ride-hailing platforms. While traditional order dispatch approaches usually focus on immediate customer satisfaction, the proposed algorithm is designed to provide a more efficient way to optimize resource utilization and user experience in a global and more farsighted view. In particular, we model order dispatch as a large-scale sequential decision-making problem, where the decision of assigning an order to a driver is determined by a centralized algorithm in a coordinated way. The problem is solved in a learning and planning manner: 1) based on historical data, we first summarize demand and supply patterns into a spatiotemporal quantization, each of which indicates the expected value of a driver being in a particular state; 2) a planning step is conducted in real-time, where each driver-order-pair is valued in consideration of both immediate rewards and future gains, and then dispatch is solved using a combinatorial optimizing algorithm. Through extensive offline experiments and online AB tests, the proposed approach delivers remarkable improvement on the platform's efficiency and has been successfully deployed in the production system of Didi Chuxing.
IOP Conference Series: Materials Science and Engineering, Oct 1, 2017
The parametric equation of the theoretical contour curve of cycloid gear was established in this ... more The parametric equation of the theoretical contour curve of cycloid gear was established in this paper. Using the NX10.0 software, parametric design of cycloidal gear profile curve was carried out, and the radius of curvature with the contour curve of cycloid gear was analyzed. The consistency between the simulation results and the theoretical design results was verified by assembly analysis, and the parametric drive of the cycloidal gear was verified simultaneously.
Geophysical exploration is based on different physical methods to measure the physical properties... more Geophysical exploration is based on different physical methods to measure the physical properties of the subsurface, along with the anomalies in those properties. In this concern, it can be applied to directly detect the target style of mineralization through measuring its physical properties directly. Herein, one can measure the density differences between the dense iron ore and the lighter silicate host rock. Also, one may measure the electrical conductivity difference between conductive sulfide minerals and the resistive silicate host rock. In exploring Earth treasures, geophysical techniques are applied for mapping the subsurface structure of a region as an indirect method for assessing the likelihood of ore deposits or hydro-carbon accumulations, elucidate the underlying structures, spatial distribution of rock units, and detect structures such as faults, folds and intrusive rocks. On the other hand, other methods are applied for exploration of mineral or hydrocarbon deposits s...
In this paper, improvement of the switching characteristics of DC-DC boost converters based on po... more In this paper, improvement of the switching characteristics of DC-DC boost converters based on power bipolar junction transistor (BJT) against excessive rise rates of voltage (dv/dt) or current (di/dt) was investigated. Here, it was proven that, in the normal operation of the boost converter (for free running devices), signal voltage across the switch resonates at parasitic ringing frequency of 1.14 MHz during turn-off. Also, ringing signal frequency of 89.0 kHz superimposed the output current waveform was noticed during turn-on mode of operation. Thus, the paper was devoted in the design, analysis and applications of dissipative voltage and current – snubber circuits, as a trial to improve such systems. From which, it is shown that the snubber circuits successfully improve the noticed problems, where for the first case (dv/dt), the ringing frequency was decreased down to 0.20 MHz, while for the second case (di/dt), the ringing frequency was completely damped.
المستخلص يعد التحكيم أحد الوسائل البديلة التي اشتهرت في السنوات الأخيرة لتسوية مختلف النزاعات. وت... more المستخلص يعد التحكيم أحد الوسائل البديلة التي اشتهرت في السنوات الأخيرة لتسوية مختلف النزاعات. وتزامنا مع التطور التكنولوجي الذي شمل مختلف مجالات الحياة ظهر ما يسمى بمحاكم أو هيئات التحكيم الإلكترونية. ومع تحول التحكيم إلى الشكل الإلكتروني، برزت إشكالية القانون الواجب التطبيق في عملية التحكيم في مجال المعاملات الدولية وكيفية إعمال القواعد التقليدية لتنازع القوانين والتي تعتمد غالبا على التوطين المكاني أو الجغرافي، وهو ما يتعارض مع الفضاء الذي يمارس التحكيم الإلكتروني أعماله. من هنا جاءت هذه الورقة لمحاولة دراسة القانون الواجب التطبيق على كل مرحلة من مراحل عملية التحكيم الإلكتروني في المعاملات الدولية الإلكترونية؛ بما في ذلك اتفاق التحكيم الإلكتروني وإجراءاته وموضوعه وتنفيذ أحكامه وطرق الطعن فيها، وذلك من خلال تحليل ومقارنة التشريعات المختلفة التي تنظم التحكيم بصفة عامة وإجراءاته ومدى قابليتها للتطبيق على التحكيم الإلكتروني، وكذا دراسة القواعد واللوائح الخاصة بهيئات التحكيم الإلكتروني، وبيان مدى استيعابها أو قصورها بشأن تنظيم التحكيم الإلكتروني، أضف إلى ذلك مناقشة بعض القضايا التي اس...
Vox Patrum, 2013
In this article a system of values of Mark Aurelius, the Roman emperor and the philosopher ruling... more In this article a system of values of Mark Aurelius, the Roman emperor and the philosopher ruling in Rome in 161-188 years, was described. The hierarchy of these values is based on reflections of the „philosopher on the throne” included in his Meditations. In the first part a respect of the emperor was portrayed towards the visible world and the laws of nature which are ruling it. Next an importance of the virtue was emphasized in the view of the author of Meditations as well as how significant was the fulfilment of everyday social duties. In the last part a fundamental role of the mind and the internal leader-demon was described. According to the thinker nothing is more important than the mind and our actions are entirely under its authority. Mind whereas it is a deity it is the emanation of the universal deity. On that account internal mind must break free from the rule of the sensual impulses and experiences which are merging with the body. In such a way Mark Aurelius applied th...
15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017, 2017
European Journal of Organic Chemistry, 2018
Monatshefte für Chemie - Chemical Monthly, 2011
The reaction of active phosphacumulenes with xanthenones and anthrone yields xanthene(anthracene)... more The reaction of active phosphacumulenes with xanthenones and anthrone yields xanthene(anthracene)- and/or phosphoranylidene xanthene(anthracene)- depending upon the nature of reactants and reaction conditions. Pertinent reaction mechanisms were considered and compatible spectroscopic measurements were recorded for all new compounds. The cytotoxic activity of some new products was evaluated against human cervical and breast carcinoma cell lines. Certain tested compounds showed promising results.Graphical abstract
![Research paper thumbnail of Chemistry of phosphorus ylides. Part 24 [1]. A route for the synthesis of oxazine derivatives via the reaction of phosphacumulenes and phosphallene with di- and tri-ketone monoximes](https://attachments.academia-assets.com/84772847/thumbnails/1.jpg)
](Monatshefte für Chemie - Chemical Monthly, 2008
Journal of Chemical Research, 2009
The reaction of Hg2+,Cd2+,Co2+, and Ni2+ ions with 1 mol of the ligands 2-methylquinoline-4-ol,3[... more The reaction of Hg2+,Cd2+,Co2+, and Ni2+ ions with 1 mol of the ligands 2-methylquinoline-4-ol,3[(diethylamino)methyl]-2-methylquinoline-4-ol, and methyl-3-(4-hyrdoxy-2-methylquinoline-3-yl)-2-(triphenylphosphoranylidene)propanoate, has been investigated to give the corresponding 1:1 metal:ligand complexes. Reaction of 2 mol of the ligand gave the corresponding 1:2 metal:ligand complexes. The coordination takes place only through the quinoline nitrogen atom. The spectroscopic and the physicochemical data of the new metal complexes are discussed.
Heterocyclic Communications, 2002
Bulletin of the Chemical Society of Japan, 1994
ABSTRACT
Page 1. PROCEEDINGS Volume 1 2012 4th International Conference on Intelligent & Advan... more Page 1. PROCEEDINGS Volume 1 2012 4th International Conference on Intelligent & Advanced Systems CONTENTS Paper & Author(s) Page ARTIFICIAL INTELLIGENCE METHODS Development and Implementation of Adaptive Fuzzy PID Controller (AFPIDC) for Flow Control Application Zulfadhli Mazlan, Rosdiazli Ibrahim 1 Promoting a Healthier Life-Style Using Activity-Aware Smart Phones Adil Khan, Muhammad Siddiqi 7 Implementation ...
The Egyptian Journal of Hospital Medicine
Background: Regional anesthesia techniques as a caudal epidural block (CEB) are commonly used to ... more Background: Regional anesthesia techniques as a caudal epidural block (CEB) are commonly used to help with pain control during pediatric surgeries, decrease parenteral analgesics requirement, and improve the quality of postoperative pain control and general satisfaction of patient parents. Transversus abdominis plane (TAP) block is an evolving modality of regional anesthetic techniques for the abdominal wall. Objective: The aim of the current study was to compare the analgesic effect of CEB versus TAP block in pediatrics undergoing infraumblical surgeries. Patients and methods: A total of 120 kids between the ages of 4 and 7 years old who needed infraumbilical procedures were divided into two groups of 60 patients. Group (1) received caudal epidural block using Plain bupivacaine 0.25 % 1 ml/kg, and Group (2) received ultrasound-guided TAP block using plain bupivacaine 0.25% 1 ml/kg. Follow up postoperative pain using Faces Pain Scale-Revised, vital signs, first rescue analgesia, the total dose of paracetamol needed, and complications. Results: At 8 and 18 hours postoperatively, Group (1) had substantially lower pain scores on the Faces pain scale-revised, reduced heart rate and mean arterial pressure compared to Group (2). Group (1) had a considerably later time to first rescue analgesia with less paracetamol use than Group (2). There was no discernible difference in postoperative complications between groups (1) and (2). Conclusion: At 6-24 hours after block placement, caudal block provides superior analgesia compared to TAP block in children undergoing lower abdominal surgeries. Caudal block is an effective, feasible, and safe option for postoperative analgesia, especially when compared to TAP block.
Nuclear Engineering and Technology, 2016
The present paper reports on a trial to shed further light on the characterization, applications,... more The present paper reports on a trial to shed further light on the characterization, applications, and operation of radar speed guns or Gunn diodes on different radiation environments of neutron or g fields. To this end, theoretical and experimental investigations of microwave oscillating system for outer-space applications were carried out. Radiation effects on the transient parameters and electrical properties of the proposed devices have been studied in detail with the application of computer programming. Also, the oscillation parameters, power characteristics, and bias current were plotted under the influence of different g and neutron irradiation levels. Finally, shelf or oven annealing processes were shown to be satisfactory techniques to recover the initial characteristics of the irradiated devices.
Nuclear Engineering and Technology, 2016
Nuclear Engineering and Technology, 2016
The present paper reports on a trial to shed further light on the characterization, applications,... more The present paper reports on a trial to shed further light on the characterization, applications, and operation of radar speed guns or Gunn diodes on different radiation environments of neutron or g fields. To this end, theoretical and experimental investigations of microwave oscillating system for outer-space applications were carried out. Radiation effects on the transient parameters and electrical properties of the proposed devices have been studied in detail with the application of computer programming. Also, the oscillation parameters, power characteristics, and bias current were plotted under the influence of different g and neutron irradiation levels. Finally, shelf or oven annealing processes were shown to be satisfactory techniques to recover the initial characteristics of the irradiated devices.
Mechatronics is a multidisciplinary field of science that includes a combination of mechanical en... more Mechatronics is a multidisciplinary field of science that includes a combination of mechanical engineering, electronics, computer engineering, telecommunications engineering, systems engineering and control engineering. As technology advances, the subfields of engineering multiply and adapt. Mechatronics' aim is a design process that unifies these subfields. Originally, mechatronics just included the combination of mechanics and electronics, therefore the word is a combination of mechanics and electronics; however, as technical systems have become more and more complex the definition has been broadened to include more technical areas. The word "mechatronics" originated in Japanese-English and was created by Tetsuro Mori, an engineer of Yaskawa Electric Corporation. The word "mechatronics" was registered as trade mark by the company in Japan with the registration number of "46-32714" in 1971. However, afterward the company released the right of using...
Proceedings of the 24th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, 2018
We present a novel order dispatch algorithm in large-scale on-demand ride-hailing platforms. Whil... more We present a novel order dispatch algorithm in large-scale on-demand ride-hailing platforms. While traditional order dispatch approaches usually focus on immediate customer satisfaction, the proposed algorithm is designed to provide a more efficient way to optimize resource utilization and user experience in a global and more farsighted view. In particular, we model order dispatch as a large-scale sequential decision-making problem, where the decision of assigning an order to a driver is determined by a centralized algorithm in a coordinated way. The problem is solved in a learning and planning manner: 1) based on historical data, we first summarize demand and supply patterns into a spatiotemporal quantization, each of which indicates the expected value of a driver being in a particular state; 2) a planning step is conducted in real-time, where each driver-order-pair is valued in consideration of both immediate rewards and future gains, and then dispatch is solved using a combinatorial optimizing algorithm. Through extensive offline experiments and online AB tests, the proposed approach delivers remarkable improvement on the platform's efficiency and has been successfully deployed in the production system of Didi Chuxing.
IOP Conference Series: Materials Science and Engineering, Oct 1, 2017
The parametric equation of the theoretical contour curve of cycloid gear was established in this ... more The parametric equation of the theoretical contour curve of cycloid gear was established in this paper. Using the NX10.0 software, parametric design of cycloidal gear profile curve was carried out, and the radius of curvature with the contour curve of cycloid gear was analyzed. The consistency between the simulation results and the theoretical design results was verified by assembly analysis, and the parametric drive of the cycloidal gear was verified simultaneously.
Geophysical exploration is based on different physical methods to measure the physical properties... more Geophysical exploration is based on different physical methods to measure the physical properties of the subsurface, along with the anomalies in those properties. In this concern, it can be applied to directly detect the target style of mineralization through measuring its physical properties directly. Herein, one can measure the density differences between the dense iron ore and the lighter silicate host rock. Also, one may measure the electrical conductivity difference between conductive sulfide minerals and the resistive silicate host rock. In exploring Earth treasures, geophysical techniques are applied for mapping the subsurface structure of a region as an indirect method for assessing the likelihood of ore deposits or hydro-carbon accumulations, elucidate the underlying structures, spatial distribution of rock units, and detect structures such as faults, folds and intrusive rocks. On the other hand, other methods are applied for exploration of mineral or hydrocarbon deposits s...
In this paper, improvement of the switching characteristics of DC-DC boost converters based on po... more In this paper, improvement of the switching characteristics of DC-DC boost converters based on power bipolar junction transistor (BJT) against excessive rise rates of voltage (dv/dt) or current (di/dt) was investigated. Here, it was proven that, in the normal operation of the boost converter (for free running devices), signal voltage across the switch resonates at parasitic ringing frequency of 1.14 MHz during turn-off. Also, ringing signal frequency of 89.0 kHz superimposed the output current waveform was noticed during turn-on mode of operation. Thus, the paper was devoted in the design, analysis and applications of dissipative voltage and current – snubber circuits, as a trial to improve such systems. From which, it is shown that the snubber circuits successfully improve the noticed problems, where for the first case (dv/dt), the ringing frequency was decreased down to 0.20 MHz, while for the second case (di/dt), the ringing frequency was completely damped.
المستخلص يعد التحكيم أحد الوسائل البديلة التي اشتهرت في السنوات الأخيرة لتسوية مختلف النزاعات. وت... more المستخلص يعد التحكيم أحد الوسائل البديلة التي اشتهرت في السنوات الأخيرة لتسوية مختلف النزاعات. وتزامنا مع التطور التكنولوجي الذي شمل مختلف مجالات الحياة ظهر ما يسمى بمحاكم أو هيئات التحكيم الإلكترونية. ومع تحول التحكيم إلى الشكل الإلكتروني، برزت إشكالية القانون الواجب التطبيق في عملية التحكيم في مجال المعاملات الدولية وكيفية إعمال القواعد التقليدية لتنازع القوانين والتي تعتمد غالبا على التوطين المكاني أو الجغرافي، وهو ما يتعارض مع الفضاء الذي يمارس التحكيم الإلكتروني أعماله. من هنا جاءت هذه الورقة لمحاولة دراسة القانون الواجب التطبيق على كل مرحلة من مراحل عملية التحكيم الإلكتروني في المعاملات الدولية الإلكترونية؛ بما في ذلك اتفاق التحكيم الإلكتروني وإجراءاته وموضوعه وتنفيذ أحكامه وطرق الطعن فيها، وذلك من خلال تحليل ومقارنة التشريعات المختلفة التي تنظم التحكيم بصفة عامة وإجراءاته ومدى قابليتها للتطبيق على التحكيم الإلكتروني، وكذا دراسة القواعد واللوائح الخاصة بهيئات التحكيم الإلكتروني، وبيان مدى استيعابها أو قصورها بشأن تنظيم التحكيم الإلكتروني، أضف إلى ذلك مناقشة بعض القضايا التي اس...
Vox Patrum, 2013
In this article a system of values of Mark Aurelius, the Roman emperor and the philosopher ruling... more In this article a system of values of Mark Aurelius, the Roman emperor and the philosopher ruling in Rome in 161-188 years, was described. The hierarchy of these values is based on reflections of the „philosopher on the throne” included in his Meditations. In the first part a respect of the emperor was portrayed towards the visible world and the laws of nature which are ruling it. Next an importance of the virtue was emphasized in the view of the author of Meditations as well as how significant was the fulfilment of everyday social duties. In the last part a fundamental role of the mind and the internal leader-demon was described. According to the thinker nothing is more important than the mind and our actions are entirely under its authority. Mind whereas it is a deity it is the emanation of the universal deity. On that account internal mind must break free from the rule of the sensual impulses and experiences which are merging with the body. In such a way Mark Aurelius applied th...
15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017, 2017
European Journal of Organic Chemistry, 2018
Monatshefte für Chemie - Chemical Monthly, 2011
The reaction of active phosphacumulenes with xanthenones and anthrone yields xanthene(anthracene)... more The reaction of active phosphacumulenes with xanthenones and anthrone yields xanthene(anthracene)- and/or phosphoranylidene xanthene(anthracene)- depending upon the nature of reactants and reaction conditions. Pertinent reaction mechanisms were considered and compatible spectroscopic measurements were recorded for all new compounds. The cytotoxic activity of some new products was evaluated against human cervical and breast carcinoma cell lines. Certain tested compounds showed promising results.Graphical abstract
Monatshefte für Chemie - Chemical Monthly, 2008
Journal of Chemical Research, 2009
The reaction of Hg2+,Cd2+,Co2+, and Ni2+ ions with 1 mol of the ligands 2-methylquinoline-4-ol,3[... more The reaction of Hg2+,Cd2+,Co2+, and Ni2+ ions with 1 mol of the ligands 2-methylquinoline-4-ol,3[(diethylamino)methyl]-2-methylquinoline-4-ol, and methyl-3-(4-hyrdoxy-2-methylquinoline-3-yl)-2-(triphenylphosphoranylidene)propanoate, has been investigated to give the corresponding 1:1 metal:ligand complexes. Reaction of 2 mol of the ligand gave the corresponding 1:2 metal:ligand complexes. The coordination takes place only through the quinoline nitrogen atom. The spectroscopic and the physicochemical data of the new metal complexes are discussed.
Heterocyclic Communications, 2002
Bulletin of the Chemical Society of Japan, 1994
ABSTRACT
Page 1. PROCEEDINGS Volume 1 2012 4th International Conference on Intelligent & Advan... more Page 1. PROCEEDINGS Volume 1 2012 4th International Conference on Intelligent & Advanced Systems CONTENTS Paper & Author(s) Page ARTIFICIAL INTELLIGENCE METHODS Development and Implementation of Adaptive Fuzzy PID Controller (AFPIDC) for Flow Control Application Zulfadhli Mazlan, Rosdiazli Ibrahim 1 Promoting a Healthier Life-Style Using Activity-Aware Smart Phones Adil Khan, Muhammad Siddiqi 7 Implementation ...