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Optimization Task Scheduling Using Cooperation Search Algorithm for Heterogeneous Cloud Computing Systems

Computers, Materials & Continua 2023年第1期74卷 2133-2148页

作者： Ahmed Y.Hamed M.Kh.Elnahary Faisal S.Alsubaei hamdy H.El-Sayed Department of Computer Science Faculty of Computers and Artificial IntelligenceSohag UniversitySohag82524Egypt Department of Cybersecurity College of Computer Science and EngineeringUniversity of JeddahJeddah21959Saudi Arabia

Cloud computing has taken over the high-performance distributed computing area,and it currently provides on-demand services and resource polling over the *** a result of constantly changing user service demand,the task scheduling problem has emerged as a critical analytical topic in cloud *** primary goal of scheduling tasks is to distribute tasks to available processors to construct the shortest possible schedule without breaching precedence *** and schedules of tasks substantially influence system operation in a heterogeneous multiprocessor *** diverse processes inside the heuristic-based task scheduling method will result in varying makespan in the heterogeneous computing *** a result,an intelligent scheduling algorithm should efficiently determine the priority of every subtask based on the resources necessary to lower the *** research introduced a novel efficient scheduling task method in cloud computing systems based on the cooperation search algorithm to tackle an essential task and schedule a heterogeneous cloud computing *** basic idea of thismethod is to use the advantages of meta-heuristic algorithms to get the optimal *** assess our algorithm’s performance by running it through three scenarios with varying numbers of *** findings demonstrate that the suggested technique beats existingmethods NewGenetic Algorithm(NGA),Genetic Algorithm(GA),Whale Optimization Algorithm(WOA),Gravitational Search Algorithm(GSA),and Hybrid Heuristic and Genetic(HHG)by 7.9%,2.1%,8.8%,7.7%,3.4%respectively according to makespan.

关键词： Heterogeneous processors cooperation search algorithm task scheduling cloud computing

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咸水灌溉实施及管理的研究进展(英文)

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农业工程学报 1993年第3期9卷 34-44页

作者： Ataf hamdy 意大利地中海农学院

作者综述讨论了有关利用咸水灌溉及其管理的各种观点和基本建议。首先分析了利用咸水灌溉的潜力,从灌溉制度、周期及灌水方法几个方面详细讨论了咸水灌溉的实施及管理,最后研究控制土壤盐分的淋洗的技术问题,包括如何选择淋洗时间的技... 详细信息

作者综述讨论了有关利用咸水灌溉及其管理的各种观点和基本建议。首先分析了利用咸水灌溉的潜力,从灌溉制度、周期及灌水方法几个方面详细讨论了咸水灌溉的实施及管理,最后研究控制土壤盐分的淋洗的技术问题,包括如何选择淋洗时间的技术问题。作者提出自己的几个观点。①作物生长是土壤盐分及质势的函数;②淋洗盐的适宜技术对有效控制土壤盐分很重要。③为有效合理安全使用咸水灌溉需特别考虑采用的灌溉方法,它们引起的盐分分布各有特点,应采用有效的控盐措施与之相适应。

关键词：咸水灌溉管理盐分控制

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Novel polymorphic EST-based microsatellite marker isolation and characterization from Poncirus trifoliata(Rutaceae)

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Frontiers of Agricultural Science and Engineering 2015年第1期2卷 60-65页

作者： Manosh Kumar BISWAS Peng CHEN Mohamed hamdy AMAR Xiuxin DENG Key Laboratory of Horticultural Plant Biology (MOE) National Center of Citrus BreedingHuazhong Agricultural University Desert Research Center Egyptian Deserts Gene Bank

Novel Poncirus trifoliata simple sequence repeat(SSR) markers were developed to evaluate their utility for genetic diversity and breeding studies of P. trifoliata and related species. A total of 108 primer pairs were characterized by PCR amplification experiments. Among these, 61 were polymorphic and transferable to other citrus species. The number of alleles per locus ranged from 2 to 6, with an average of 2.37 alleles per locus. The expected heterozygosity and observed heterozygosity ranged from 0 to 0.83 and 0 to 1.00, *** novel polymorphic SSR markers will be useful for citrus cultivar identification and evaluation as well as breeding studies.

关键词： microsatellite polymorphism Poncirus trifoliata

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Extended Battery to Cope with ELAP for APR1400

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Journal of Energy and Power Engineering 2017年第1期11卷 56-62页

作者： hamdy Samier hamdy Abdelbadea Chang Choong-Koo KEPCO International Nuclear Graduate School-KINGS 658-91 Haemaji-ro Seosaeing-myeon Ulju-gun Ulsan 689-882 Koera

Since the Fukushima nuclear accident, the interest in securing a reliable emergency power has increased, and as follow-up measures, each country is conducting various studies for enhancement of safety such as re-examination of EDG （emergency diesel generator） capacity, securement of additional emergency power, etc. This study was performed to find the way to implement a reliable DC system in coping with 72 hours extended station blackout for APR1400 within the battery room size. By using the largest capacity battery in the market which satisfies the requirements for Class 1E to perform a duty cycle for 24 hours, after the decay of the qualified class-lE lead acid battery a Non-Class 1E Lithium ion based battery system can be used as a backup system for 48 hours.

关键词： Station blackout ELAP (extended loss of AC power) FLEXES equipment Non-Class-1 E Lithium ion based system.

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Anti-nutritional characteristics and mechanism of soybean agglutinin

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BIOCELL 2021年第3期45卷 451-459页

作者： LI PAN JIAWEI LIU MOHAMMED hamdy FAROUK GUIXIN QIN NAN BAO YUAN ZHAO HUI SUN Key Laboratory of Animal Production Product Quality and SecurityMinistry of EducationKey Laboratory of Animal Nutrition and Feed ScienceCollege of Animal Science and TechnologyJilin Agricultural UniversityChangchun130118China Animal Production Department Faculty of AgricultureAl-Azhar UniversityCairo11884Egypt

Soybean agglutinin(SBA)is an important anti-nutritional factor in *** can induce animal growth inhibition,cause pathological changes of intestinal tissue,and decrease in the immune system ***,a great deal of research has been done on the effects of SBA on cell morphology,division,apoptosis,autophagy,as well as the correlated signal transduction *** review mainly covers the chemical and biological characteristics of SBA,describes the multifaceted aspects of SBA anti-nutritional functions,and highlights the possible cellular and molecular mechanism of anti-nutritional effects of *** review has important implications for the prevention and treatment of SBA-induced diseases,drug development,processing techniques of plant products,prevention of food-borne toxins,as well as human and animal health protection.

关键词： Soybean agglutinin Autophagy Cell apoptosis Anti-nutritional functions Cell signaling

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Utilizing Wiltse Approach for Minimal Access Posterolateral Lumbar Stabilization

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Open Journal of Modern Neurosurgery 2018年第1期8卷 101-108页

作者： hamdy Mohammed Behairy Department of Neurosurgery Al-Azhar University Cairo Egypt

An aggressive separation and prolonged overstretching of the paraspinal muscles in the posterior midline approach during lumbar non fusion dynamic stabilization in cases of spondylolisthesis resulting from pars interarticularis fracture may result in postoperative flat back deformity and intractable chronic pain. It is hypothesized that utilizing Wiltse paraspinal inter-muscular approach for this purpose may result in reduction of operative time, protection of integrity, vascularity, nerve supply and strength of paraspinal muscles, shortening of hospitalization and minimizing development of chronic postoperative back pain. So, I have performed this prospective descriptive study that involved 24 patients having single level lumbar instability at L4-5 or L5-S1 levels. All patients were operated upon using Wiltse minimal access posterolateral surgical technique for non-fusion dynamic stabilization. The final results revealed that males were 66%, females were 33% and ages were 42 ± 6 years. Trauma was reported in 12%. Low back pain and tenderness were reported in 100% and root affection reported in 25%. Plain X-ray and MRI were done in 100% and C.T. was done in 8% of cases. Level L4-5 was affected in 17% while level L5-S1 was affected in 83%. Anterolisthesis “grades 0” was found in 8%, grades 1 in 88% and retrolisthesis in 4% of cases. Operative time was 1 hour ± 10 min., blood loss was 60 ± 20 ml., patients ambulation was after 6 - 8 hours, hospital stay was 12 - 24 hours. None of cases were complicated with infection, screw loosening, or fixation system break. Back pain VAS diminished from 7 preoperative to 5 in 2nd day, then became 4 by 1 week, 3 by 1 month and 0 by 6 months. It was concluded that utilizing Wiltse approach for posterolateral lumbar stabilization minimizes tissue damage and improves the speed of recovery and outcome.

关键词： Lumbar Spine Instability Posterolateral Wiltse Approach Minimal Access Lumbar Stabilization

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Is fluoroscopy-free single-use flexible ureteroscopy a feasible treatment for kidney stones with abnormal renal anatomy?

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Asian Journal of Urology 2024年第4期11卷 591-595页

作者： hamdy Aboutaleb Mohamed Sultan Ahmed Zaghloul Yasser Farahat Maher Gawish Fouad Zanaty Urology Department Menoufia University HospitalEgypt Urology Department Burjeel HospitalAbu DhabiUnited Arab Emirates Urology Department AlAzhar UniversityAssiut BranchEgypt

ObjectiveThis study aimed to evaluate the feasibility of the fluoroscopy-free single-use flexible ureteroscopy procedure in the treatment of kidney stones with abnormal renal anatomy compared to normal renal *** patients with abnormal (Group A) and 80 patients with normal (Group B) renal anatomy who had 10–20 mm renal stones were included. They were treated with LithoVue single-use flexible ureteroscopy (Boston Scientific, Marlborough, MA, USA) after ureteric dilatation by two different size semi-rigid ureteroscopes. This technique was chosen as the aim was to exclude any ureteric pathology (e.g., stone or stricture), confirm the placement of a safe guidewire, avoid balloon dilatation of the ureter, and achieve safe insertion of a 12 Fr, 35/45 cm ureteric access sheath with optical and tactile sign and without fluoroscopy image for *** mean ages were 43 years and 45 years in Group A and Group B, respectively. The mean stone burden was 14.62 (standard deviation: 5.35) mm^(3) and 14.79 (standard deviation: 4.58) mm^(3) in Group A and Group B, respectively. There is no significant difference between both groups according to the mean operative time, hospital stay, or stone-free rate. The stone-free rate was about 93% in both groups when the stone size was between 10 mm and 15 mm, and less than 54% when the stone size was more than 15 mm to 20 mm. In the majority of cases (80.0% in Group A and 92.5% in Group B), we completed the procedure without fluoroscopy. The perioperative complication rates were comparable in the two ***-free single-use flexible ureteroscopy, when performed by expert urologists, is a feasible treatment for pre-stented patients with kidney calculi of ≤15 mm with abnormal renal anatomy.

关键词： Fluoroscopy Flexible ureteroscopy Renal stone Abnormal renal anatomy

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“Islamic State”and the Transformation of Islamic Discourse in the Middle East

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Asian Journal of Middle Eastern and Islamic Studies 2016年第4期10卷 1-19页

作者： hamdy A.HASSAN Department of Islamic World Studies College of Humanities and Social SciencesZayed University DubaiUAE

The purpose of this paper is to highlight the origin and evolution of the“Islamic State”(IS)with special focus on the root causes that helped construct its Islamic narrative,such as the idea of the Islamic *** argues that IS has not concealed all other jihadist groups,and it is just a new face of the same idea associated with political Islam:*** paper also tries to analyze the changing face of global jihadism through a comparative approach of Al-Qaeda and *** has been shown that while both groups have common ideological beliefs,they are in many ways *** studying and analyzing the Islamic discourse of many Jihadist groups in the Middle East,the paper has showed a case of acute obscurantism which is reflected on the statements and behavior of these ***,they are open to communicate between their *** the counter extremism initiatives,the threat of IS and its affiliated groups is not decreasing,but it is *** is needed in the region in order to fight this monster is a moment of reflection and reckoning by all *** requires a revolution in the dominant religious discourse.

关键词： “Islamic State” Islamic Discourse Caliphate “Arab Spring” Jihadi-Salafism and Sharia Law

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The Interaction between the Source and the Level of Feedback in Blended Courses and Its Impact on Achievement and Self-efficacy

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通讯和计算机（中英文版） 2014年第5期11卷 423-440页

作者： hamdy Ahmed Abdelaziz Department of Distance Learning College of Graduate Studies Arabian Gulf University Kingdom of Bahrain P.O.Box: 26671Manama BH.

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Endoscopic decompression of the median nerve for idiopathic Carpal tunnel syndrome

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Neuroscience & Medicine 2018年第1期9卷 1-8页

作者： hamdy Mohammed Behairy Department of Neurosurgery Al-Azhar University Cairo Egypt

Carpal tunnel syndrome is one of the commonest entrapment neuropathies. Hand pain and numbness are mostly the presenting symptoms. Endoscopic carpal tunnel release (ECTR) has been demonstrated to reduce recovery time and allow faster return to the work. The purpose of this prospective descriptive study was to evaluate the efficacy and advantages of (ECTR) through single proximal incision. In this study, the procedure was done for 36 hands in 36 patients. The results showed that females:male = 9:1, mean age was 42 years. Right hand dominance was 90% and affected in 67%. Preoperatively, the condition was moderate in 61% and severe in 39%. The average operating time was 10 minutes and the mean follow up period was 6 months with no major postoperative complications. In 8%, transient neurapraxia was found and resolved in 1 week and tenderness was found in 70% and resolved in 4 weeks. we concluded that endoscopic carpal tunnel release is an effective minimal incisional safe procedure with a high success rate, rapid return to work.

关键词： carpal tunnel syndrome endoscopic release

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