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Contribution to the Ground Water Hydrology of the Quaternary Aquifer in West Ismailia Area, Egypt

Journal of Geoscience and Environment Protection 2018年第7期6卷 134-158页

作者： salah Abdelwahab el-Sayed Siting and Environmental Department Egyptian Nuclear and Radiological Regulatory Authority ENRRA Cairo Egypt

Hydrologic conditions of the ground water of the Quaternary aquifer in west Ismailia area, Egypt, were characterized based on new hydrologic data collected in 2017. The Quaternary aquifer consists of alluvial deposits. The grain size distribution results indicate that the major part of the aquifer deposits is formed of medium to coarse grained sand with medium uniformity coefficients ranging between 2.5 and 10. They also reflect the heterogeneity, anisotropy and high productivity of the aquifer. The estimated aquifer parameters range from 29% to 41% for total porosity, from 18.71 m/day to 63.95 m/day for horizontal hydraulic conductivity, from 8.94 m/day to 61.6 m/day for vertical hydraulic conductivity, from 1.01 to 4.27 for anisotropy and from 1870 m2/day to 6549 m2/day for transmissivity. The ground water flows mainly from the north and northeast recharge sources (Ismailia and el Manaief canals) and from the south recharge area (Miocene aquifer), with an average hydraulic gradient of 0.00438. The recharge rate to the aquifer (from the southern area) and the Darcy’s velocity of ground water are estimated to be 447 × 106 m3/year and 0.203 m/day (on average), respectively. A great change in the hydrologic setting of the aquifer is occurred during the period of 1992-2017, where the groundwater flow has changed during that period. The aquifer contains fresh to saline water. An oxidizing (alkaline) environment is reported for the aquifer, as revealed from the relationship between the redox potential (185 - 836 mV) and pH (5.2 - 7.5 standard units). This indicated the capability of ground water to dissolve heavy metals associated to rock-forming minerals. A wide variation in the concentrations of total dissolved solids (320 - 7385 mg/l) and dissolved oxygen (2.13 - 8.4 mg/l) in the Quaternary aquifer is observed, reflecting the local variation of the environmental and geologic conditions and indicating the influence of different recharge sources.

关键词： Ground Water Flow and Recharge Hydraulic Parameters Aqueous Environment Quaternary Aquifer West Ismailia Area Egypt

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Study of Groundwater in Northeast Cairo Area, Egypt

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Journal of Geoscience and Environment Protection 2018年第4期6卷 229-251页

作者： salah Abdelwahab el-Sayed Siting and Environmental Department Nuclear and Radiological Regulatory Authority Cairo Egypt

This paper presents a comprehensive hydrogeologic view of the Quaternary aquifer in north eastern Cairo area, Egypt. The hydrogeologic, hydrochemical and isotopic features of the aquifer are determined to assess the groundwater geochemistry and quality for different uses. The groundwater in the aquifer is shallow and flows towards the heavily pumping areas (cultivated and industrial areas). The concentrations of total dissolved solids (TDS) vary considerably in the aquifer, ranging from 225.6 mg/L to 1219 mg/L. Wide variations in the concentrations of major ions, trace elements, nitrate, δ18O and δ2H are detected, indicating the variation in the geologic and recharge conditions. This further indicates the effect of natural processes (weathering, dissolution and ion exchange) as well as anthropogenic activities on the quality of groundwater. Moderate levels of contamination with nitrate, aluminum and manganese are recorded in the groundwater below the cultivated area. The contamination is linked to the extensive use of fertilizers for agriculture and the leakage of wastewater from improper sewage system. The computed nitrate pollution index reveals that about 69.69% of groundwater is safe for drinking, while the rest of groundwater is unsuitable. The calculated water quality index indicates that about 78.79% of groundwater is safe for human consumption and the rest of groundwater is poor for consumption because of the contamination with the high levels of manganese, total hardness, pH, sulphate, aluminum, and nitrate. The contaminated groundwater needs to be treated before consumption. Hence, periodic groundwater quality checks are recommended.

关键词： Northeast Cairo Groundwater Geochemistry Isotopes Pollution Water Quality Assessment

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One-pot hydrothermal preparation of hierarchical manganese oxide nanorods for high-performance symmetric supercapacitors

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Journal of Energy Chemistry 2022年第2期31卷 116-126页

作者： Bidhan Pandit Emad S.Goda Mahmoud H.Abu elella Aafaq ur Rehman Sang Eun Hong Sachin R.Rondiya Pranay Barkataki Shoyebmohamad F.Shaikh Abdullah M.Al-Enizi salah Mel-Bahy Kuk Ro Yoon Department of Materials Science and Engineering and Chemical Engineering Universidad Carlos III de MadridAvenida de la Universidad 3028911 LeganésMadridSpain Organic Nanomaterials Lab Department of ChemistryHannam UniversityDaejeon 34054Republic of Korea Fire Protection Laboratory National Institute of Standards136Giza 12211Egypt Chemistry Department Faculty of ScienceCairo UniversityGiza 12613Egypt Graduate School of Energy Science and Technology Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea School of Chemistry Cardiff UniversityMain BuildingPark PlaceCardiffCF103AT WalesUnited Kingdom Department of Physics Visvesvaraya National Institute of TechnologySouth Ambazari RoadNagpur-440010MaharashtraIndia Department of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia Department of Chemistry Turabah University CollegeTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

An eco-friendly,new,and controllable approach for the preparation of manganese oxide(a-MnO_(2))nanorods has been introduced using hydrothermal reaction for supercapacitor *** in-depth crystal structure analysis ofα-MnO_(2) is analyzed by X-ray Rietveld refinement by using Full Prof program with the help of pseudo-Voigt profile *** developed a-MnO_(2) electrode attains a remarkable capacitance of 577.7 F/g recorded at a current density value of 1 A/g with an excellent cycle life when is used for 10,000 repeated cycles due to the porous nanorod-morphology assisting the ease penetration of electrolyte ions into the electroactive *** diffusive and capacitive contributions of the electrode have been estimated by considering standard numerical packages in *** successfully assembling the aqueous symmetric supercapacitor(SSC)cell by utilizing the as-preparedα-MnO_(2),an excellent capacitance of 163.5 F/g and energy density of 58.1 Wh/kg at the constant current density of 0.5 A/g are obtained with an expanded potential frame of 1.6 ***,the cell has exceptionally withstood up to 10,000 cycles with an ultimate capacitance retention of 94.1%including the ability to light an LED for 18 *** findings recommend the developed a-MnO_(2) electrode to be a highly felicitous electrode for the field of energy storage.

关键词： α-MnO_(2)nanorods Rietveld refinement Symmetrical supercapacitors High energy density

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Design of adaptive intuitionistic fuzzy controller for synchronisation of uncertain chaotic systems

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CAAI Transactions on Intelligence Technology 2020年第4期5卷 237-246页

作者： Mohamed Hamdy salah Helmy Mohamed Magdy Department of Industrial electronics and Control Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf-32952Egypt Department of Mechatronics Engineering Higher Institute of Engineering and TechnologyEl-Mahalla El-Kobra-31951Egypt

This study presents the synchronisation between two non-linear Lorenz chaotic systems using an adaptive intuitionistic fuzzy controller(AIFC).This problem is solved in the presence of external disturbances and *** classes of Lorenz systems have been formulated one as the master and the other as the *** master and slave systems have different initial *** different initial conditions,both systems *** is called the butterfly effect that rules the behaviour of chaotic *** is chosen as a different method that has not been used before to synchronise the chaotic *** scaling factors of the inputs and the output of the intuitionistic fuzzy controller(IFC)are tuned using the artificial bee colony(ABC)algorithm depending on a specified objective *** IFC stability is studied when it is applied to synchronise the Lorenz *** simulation results achieved to assess the adequacy of the proposed control and to exhibit its dependability to synchronise the Lorenz system.

关键词： function. chaotic specified

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Trends and outcomes of pancreaticoduodenectomy for periampullary tumors: A 25-year single-center study of 1000 consecutive cases

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World Journal of Gastroenterology 2017年第38期23卷 7025-7036页

作者： ayman el nakeeb waleed askar ehab atef ehab el hanafy ahmad m sultan tarek salah ahmed shehta mohamed el sorogy emad hamdy mohamed el hemly ahmed a el-geidi tharwat kandil mohamed el shobari talaat abd allah amgad fouad mostafa abu zeid ahmed abu el eneen nabil gad el-hak gamal el ebidy omar fathy ahmed sultan mohamed abdel wahab gastroenterology surgical center mansoura university

AIM To evaluate the evolution, trends in surgical approaches a n d r e c o n s t r u c t i o n t e c h n i q u e s, a n d i m p o r t a n t lessons learned from performing 1000 consecutive pancreaticoduodenectomies(PDs) for periampullary *** This is a retrospective review of the data of all patients who underwent PD for periampullary tumor during the period from January 1993 to April 2017. The data were categorized into three periods, including early period(1993-2002), middle period(2003-2012), and late period(2013-2017).RESULTS The frequency showed PD was increasingly performed after the year 2000. With time, elderly, cirrhotic and obese patients, as well as patients with uncinate process carcinoma and borderline tumor were increasingly selected for PD. The median operative time and postoperative hospital stay decreased significantly over the periods. Hospital mortality declined significantly, from 6.6% to 3.1%. Postoperative complications significantly decreased, from 40% to 27.9%. There was significant decrease in postoperative pancreatic fistula in the second 10 years, from 15% to 12.7%. There was a significant improvement in median survival and overall survival among the *** Surgical results of PD significantly improved, with mortality rate nearly reaching 3%. Pancreatic reconstruction following PD is still debatable. The survival rate was also improved but the rate of recurrence is still high, at 36.9%.

关键词： Pancreaticoduodenectomy Pancreaticogastrostomy Pancreaticojejunostomy 手术后的胰腺的管 Periampullary 肿瘤

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Upper crustal Poisson's ratio and coda-wave attenuation beneath Eastern Anatolia

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Earthquake Engineering and Engineering Vibration 2020年第2期19卷 335-347页

作者： Ufuk Aydin Sakir Sahin Mohamed K.salah Atatürk University Oltu Faculty of Earth SciencesMining EngineeringErzurumTurkey Geophysical Engineering Department SDUEngineering and Architecture FacultyIspartaTurkey Department of Geology American University of BeirutRiad El Solh 11072020BeirutLebanon

The attenuation of seismic waves reflects the elastic nature of the media within which the waves *** this study,we calculate the Coda-Q(Qc),frequency dependence(η),Vp/Vs and Poisson's(υ)ratios by using 2621 vertical component seismograms generated by 987 earthquakes recorded by 13 seismic stations in Eastern Anatolia,and creat a 2-D seismic tomographic Qc model for the *** obtained model provides significant information for exploring the boundaries of adjacent tectonic units within the upper crust and interpreting their dynamic *** 2-D Qc model and the other parameters are consistent with the seismotectonic features of Eastern *** heterogeneous Qc values are observed in the study area dividing it into north-south directed bands of low and high *** highestηvalues were obtained beneath the northwestern and eastern parts of the study ***,high and lowυvalues are obtained in the western and eastern parts of the study area,*** spatial variations in the measured parameters are consistent with many geophysical observations including low Pn velocities,efficient Sn blockage,high heat flow,and widespread *** upper crustal thicknesses and inhomogeneous stress distribution along the East and North Anatolian Fault Zones may also contribute to the observed heterogeneities.

关键词： Coda-Q(Qc) Eastern Anatolia Poisson's ratio(υ) seismotectonics upper crustal structure

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Design and Fabrication of a Low-Loss Microstrip Lowpass-Bandpass Diplexer for WiMAX Applications

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China Communications 2020年第6期17卷 109-120页

作者： Leila Nouri salah Yahya Abbas Rezaei Institute of Research and Development Duy Tan UniversityDa Nang 550000Vietnam Faculty of electrical–electronic Engineering Duy Tan UniversityDa Nang 550000Vietnam Department of Communication and Computer Engineering Cihan University-ErbilErbilKurdistan RegionIraq Department of Software Engineering Faculty of EngineeringKoya UniversityKoya KOY45Kurdistan RegionIraq Department of electrical Engineering Kermanshah University of TechnologyKermanshahIran

This work presents a compact lowpass-bandpass microstrip diplexer with a novel *** consists of a lowpass filter integrated with a bandpass filter via a simple compact *** proposed bandpass filter consists of four rectangular patch cells and some thin *** step impedance structures,with a radial cell,are applied to achieve a lowpass frequency *** lowpass channel of the introduced diplexer has 2.64 GHz cut-off frequency,whereas,the bandpass channel center frequency is 3.73 GHz for WiMAX applications and covers the frequencies3.31 GHz to 4 *** addition to having novel structures,both filters have other advantages in terms of high return loss,low insertion loss and high *** presented microstrip diplexer has the compact size of 29 mm×13.8 mm×0.762 mm,calculated at 2.64 *** obtained insertion losses are 0.20 dB(for the first channel)and 0.25 dB(for the second channel),which make the proposed diplexer suitable for energy *** stopband properties of both bandpass and lowpass filters are improved by creating several transmission *** comparison results show that the lowest insertion losses,the minimum gap between channels,good return losses,and good isolation are obtained.

关键词： compact diplexer lowpass-bandpass low-loss microstrip selectivity

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On Gaugino Dominated Dark Matter

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Journal of Modern Physics 2010年第6期1卷 393-398页

作者： salah Eddine Ennadifi el Hassan Saidi 不详

Using the neutral gauginos of and hybridization ideas below the GUT scale, we approach the Dark Matter particle within the Minimal Supersymmetric Standard Model. In the energy range where supergravity effects can be ignored, it is proposed that such DM particle could be inter- preted in terms of a mixture of Bino and Wino states with a lower bound mass not far above the electroweak scale to account for the observed Dark Matter density. We establish the theoretical origin of this particle and study as well its compositeness and its mass bound.

关键词： Minimal Supersymmetric Standard Model Gauginos Dark Matter

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μPMU-based smart adaptive protection scheme for microgrids

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Journal of Modern Power Systems and Clean Energy 2019年第4期7卷 887-898页

作者： Mohamed salah elBANA Nabil ABBASY Ashraf MEGHED Nahil SHAKER electrical Engineering Department Faculty of EngineeringAlexandria UniversityLotfy El-Sied St.P.O.ElhadaraAlexandria 21544Egypt

The concepts of microgrids(MGs)and smart grid represent the recent targeted revolution towards fully smart electrical network integrated with high penetration of renewable energy sources(RESs).The protection system of MGs becomes a challenge due to variable characteristics of its currents,bidirectional power flow and output power fluctuations of RES,causing selectivity and sensitivity issues for conventional protective devices(PDs)with fixed *** this paper,a smart protection scheme(SPS)is proposed using micro-phasor measurement units(μPMUs)to obtain the continuous rapid synchronized phasor measurement *** it is communicated with a microgrid central controller(MGCC)through highly reliable communication architecture to carry out online smart adaptive protection *** index coefficients and abnormality coefficients are calculated for each feeder to detect the fault location and the abnormality *** modeling of an MG including 10-bus connected distribution system with integrated distributed generation(DG)is simulated using ETAP *** proposed protection algorithm is modeled and evaluated using MATLAB *** proposed fault detector and abnormality detector can enable quick and accurate fault identification and isolation.

关键词： Fault index coefficients Microgrid(MG) Micro-phasor measurement unit(μPMU) Renewable energy source(RES) Smart protection scheme(SPS)

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Toward Safe and Usable Technologies for Autistic: Risks Identification and Mitigation Guidelines

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Open Journal of Applied Sciences 2019年第1期9卷 26-44页

作者： Nesrine Mezhoudi Hina Gull Mohammed A. Alqahtani Nahla el-haggar Moez Ayachi Department of Computer Information Systems College of Computer Science and IT Imam Abdulrahman Bin Faisal Univer-sity P. O. Box 1982 Dammam Saudi Arabia Department of Computer Science Community College Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia General Study Department Dammam College of Technology Dammam Saudi Arabia

Recent advances in technology provide countless innovative solutions and applications for supporting children with autism in educational learning and personal development. This result is an increasingly recognized need to deal with new and unexpected risks and issues such as social exclusion. Diverse advanced technologies were aimed to support learning activity from different perspectives with multiple strategies. However, despite the significant amount of work and explored technology, several common risks pop up due to user’s vulnerability to diverse risks such as negative screen effects. Accordingly, there is still plenty of room for improvement in this regard. To address these vulnerabilities and gaps, this paper aims at identifying issues and challenges improving the technology applied for Autism Spectrum Disorders and autistics dedicated applications. It put forward requirements and design decisions supporting safe autistic dedicated interaction with regards to ISO31000 risk management process.

关键词： Autism Spectrum Disorders Supportive Technology Risk-Awareness ISO31000 IT Risks

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