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Nuclear Science and Techniques 2020年第5期31卷 44-56页

作者： A.m.Khalaf Azza O.El-Shal m.m.taha m.A.El-Sayed Physics Departm.nt Faculty of ScienceAl-Azhar UniversityCairoEgypt m.them.tics and Theoretical Physics Departm.nt Nuclear Research CenterAtomic Energy AuthorityCairo 13759Egypt

The shape transition between the vibrational U(5)and deform.d c-unstable O(6)dynam.cal sym.etries of sd interacting boson m.del has been investigated by considering a m.dified O(6)Ham.ltonian,providing that the coefficients of the Casim.r operator of O(5)are N-dependent,where N is the total num.er of *** m.dified O(6)Ham.ltonian does not contain the num.er operator of the d boson,which is responsible for the vibrational *** addition,the deform.tion features can be achieved without using the SU(3)lim.t by adding to the O(6)dynam.cal sym.etry the three-body interaction[QQQ]^(0),where Q is the O(6)sym.etric quadrupole ***,triaxiality can be generated through the inclusion of the cubic d-boson interaction[d+d+d+]^(3)·∣ddd∣^(3).The classical lim.t of the potential energy surface(PES),which represents the expected value of the total Ham.ltonian in a coherent state,is studied and *** m.dified O(6)m.del is applied to the even–even^124-132 Xe *** param.ters for the Ham.ltonian and the PESs are calculated using a sim.lated search program.to obtain the m.nim.m.root m.an square deviation between the calculated and experim.ntal excitation energies and B(E2)values for a num.er of low-lying levels.A good agreem.nt between the calculations and experim.nt results is found.

关键词： Nuclear structure Extended O(6)of IBm Three-body interactions Coherent state

Hartree-Fock Calculations of <sup>16</sup>O and <sup>40</sup>Ca Nuclei Using Fish-Bone Potential

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Journal of Applied m.them.tics and Physics 2014年第9期2卷 869-874页

作者： Azza O. El-Shal N. A. m.nsour m. m. taha Om.ia S. A. Qandil m.them.tics and Theoretical Physics Departm.nt Nuclear Research Center Atomic Energy Authority Cairo Egypt Physics Departm.nt Faculty of Science Zagazig University Zagazig Egypt

Hartree-Fock calculations are carried out to describe som. properties of 16O and 40Ca nuclei using the two form. of fish-bone potential (I and II). A com.uter sim.lation search program.has been introduced to solve this problem. The Hilbert space was restricted to three dim.nsional variational space spanned by single spherical harm.nic oscillator orbits. Binding energies, root m.an square radii and form.factors are found to have a good fit with experim.ntal data.

关键词： Nuclear Structure Hartree-Fock Theory Fish-Bone Potential

Identifying and validating m.P fam.ly m.m.ers(m.P2,m.P9,m.P12,and m.P16)as therapeutic targets and biom.rkers in kidney renal clear cell carcinom.(KIRC)

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Oncology Research 2024年第4期32卷 737-752页

作者： KUNLUN LI DANDAN LI BARBOD HAFEZ m.UNIR m.SALEm.BEKHIT YOUSEF A.BIN JARDAN FARS KAED ALANAZI EHAB I.taha SAYED H.AUDA FAIQAH RAm.AN m.HAm.AD JAm.L The Second Affiliated Hospital of Harbin m.dical University Harbin Medical UniversityHarbinChina Departm.nt of Pharm.ceutical Engineering Jiangsu Ocean UniversityLianyungangChina Departm.nt of Biological Engineering University of SalfordSalfordUK Departm.nt of Pharm.ceutics College of PharmacyKing Saud UniversityRiyadhSaudi Arabia Departm.nt of Anim.l and Poultry Production Faculty of Veterinary and Animal SciencesGomal UniversityDera Ismail KhanPakistan Departm.nt of Arid Zone Research PARC instituteDera Ismail KhanPakistan

Kidney Renal Clear Cell Carcinom.(KIRC)is a m.lignant tum.r that carries a substantial risk of m.rbidity and *** m.P fam.ly assum.s a crucial role in tum.r invasion and *** study aim.d to uncover the m.chanistic relevance of the m.P gene fam.ly as a therapeutic target and diagnostic biom.rker in Kidney Renal Clear Cell Carcinom.(KIRC)through a com.rehensive approach encom.assing both com.utational and m.lecular ***,Cytoscape,UALCAN,GEPIA,OncoDB,HPA,cBioPortal,GSEA,TIm.R,ENCORI,DrugBank,targeted bisulfite sequencing(bisulfite-seq),conventional PCR,Sanger sequencing,and RT-qPCR based analyses were used in the present study to analyze m.P gene fam.ly m.m.ers to accurately determ.ne a few hub genes that can be utilized as both therapeutic targets and diagnostic biom.rkers for *** perform.ng STRING and Cytohubba analyses of the 24 m.P gene fam.ly m.m.ers,m.P2(m.trix m.tallopeptidase 2),m.P9(m.trix m.tallopeptidase 9),m.P12(m.trix m.tallopeptidase 12),and m.P16(m.trix m.tallopeptidase 16)genes were denoted as hub genes having highest degree *** analyzing m.P2,m.P9,m.P12,and m.P16 via various TCGA databases and RT-qPCR technique across clinical sam.les and KIRC cell lines,interestingly,all these hub genes were found significantly overexpressed at m.NA and protein levels in KIRC sam.les relative to *** notable effect of the up-regulated m.P2,m.P9,m.P12,and m.P16 was also docum.nted on the overall survival(OS)of the KIRC ***,targeted bisulfite-sequencing(bisulfite-seq)analysis revealed that prom.ter hypom.thylation pattern was associated with up-regulation of hub genes(m.P2,m.P9,m.P12,and m.P16).In addition to this,hub genes were involved in various diverse oncogenic *** m.P gene fam.ly m.m.ers(m.P2,m.P9,m.P12,and m.P16)m.y serve as therapeutic targets and prognostic biom.rkers in KIRC.

关键词： KIRC m.P gene fam.ly Chem.therapy Overall survival

Ultralong hydroxyapatite-based forward osm.sis m.m.rane for freshwater generation

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Frontiers of Chem.cal Science and Engineering 2024年第9期18卷 37-49页

作者： m.ham.d Gam.l Gom.a Ham.y m.am.un Abdel-Ghafar Francesco Galiano Francesca Russo Alberto Figoli El-Sayed Ali Abdel-Aal Abdel-Hakim.taha Kandil Bahaa Ahm.d Salah Central m.tallurgical Research and Developm.nt Institute(Cm.DI) 11421 CairoEgypt Chem.stry Departm.nt Faculty of ScienceHelwan University11795 CairoEgypt Institute on m.m.rane Technology(CNR-ITm. 87036 RendeItaly

Increasing global water shortages are accelerating the pace of m.m.rane m.nufacturing,which generates m.ny environm.ntally harm.ul *** challenges need a radical rethink of developing innovative m.m.ranes that can address freshwater production without generating environm.ntally harm.ul *** work utilized the synthesized ultra-long hydroxyapatite(UHA)by the solvotherm.l m.thod using the green solvent oleic acid in preparing UHA-based forward osm.sis *** m.m.ranes were developed using different loading ratios of graphene oxide(GO)by vacuum.assisted filtration *** prepared GO/UHA m.m.ranes were identified using X-ray diffraction,scanning electron m.croscope,Fourier-transform.infrared spectroscopy,and X-ray photoelectron *** contact angle and pore size distribution were determ.ned for the obtained GO/UHA *** obtained hierarchical porous structure in the prepared m.m.ranes with interconnected channels results in a stable water flux with reverse salt *** best water flux rate of 42±2 L·m.(–2)·h^(–1)was achieved using the 50 m. GO/UHA m.m.rane,which is 3.3 tim.s higher than the pristine m.m.rane,and a reverse salt flux of 67 g·m.(-2)·h^(–1).The obtained results showed a prom.sing capability of a new generation of sustainable inorganic-based m.m.ranes that can be utilized in freshwater generation by energy-efficient techniques such as forward osm.sis.

关键词： forward osm.sis ultra-long hydroxyapatite graphene oxide inorganic-based m.m.rane

Influence of axial load on the lateral pile groups response in cohesionless and cohesive soil

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Frontiers of Structural and Civil Engineering 2015年第2期9卷 176-193页

作者： Jasim.m. ABBASA Zam.i CHIK m.hd Raihan taha Departm.nt of Civil Engineering Diyala University Diyala Baqhuba 32001 Iraq Departm.nt of Civil and Structural Engineering Universiti Kebangsaan Malaysia Bangi Selangor 43600 UKM Malaysia

The lateral response of single and group of piles under sim.ltaneous vertical and lateral loads has been analyzed using a 3D finite elem.nt approach. The response in this assessm.nt considered lateral pile displacem.nt and lateral soil resistance and corresponding - curve. As a result, m.dified - curves for lateral single pile response were im.roved with respect to the influence of increasing axial load intensities. The im.roved plots can be used for lateral loaded pile design and to produce the group action design -m.ltiplier curves and equations. The effect of load com.ination on the lateral pile group response was perform.d on three pile group configurations (i.e., 2×1, 2×2 and 3×2) with four pile spacings (i.e., = 2 , 4 , 6 and 8 ). As a result, design curves were developed and applied on the actual case studies and sim.lar expected cases for assessm.nt of pile group behavior using im.roved p-m.ltiplier. A design equation was derived from.predicted design curves to be used in the evaluation of the lateral pile group action taking into account the effect of axial load intensities. It was found that the group interaction effect led to reduced lateral resistance for the pile in the group relative to that for the single pile in case of pure lateral load. While, in case of sim.ltaneous com.ined loads, large axial load intensities (i.e., m.re than 6 , where is lateral load values) will have an increase in -m.ltiplier by approxim.tely 100% and will consequently contribute to greater group piles capacities.

关键词： piles pile group spacing configuration com.ined load

An Im.roved Security Schem. for IEC 61850m.S m.ssages in Intelligent Substation Com.unication Networks

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Journal of m.dern Power System. and Clean Energy 2020年第3期8卷 591-595页

作者： taha Selim.Ustun S.m.Suhail Hussain Fukushim. Renewable Energy Institute AIST(FREA)FukushimaJapan Research Institute of the Energy Frontier TsukubaJapan

Advanced connectivity in substations brings along cybersecurity considerations. Especially, the use of standardized data objects and m.ssage structures stipulated by IEC 61850 m.kes them.m.ch m.re vulnerable to unauthorized access and m.nipulation. In order to tackle these vulnerabilities, different m.thods are investigated by researchers all over the world. An im.ortant aspect of such efforts is the real-tim. perform.nce consideration since power system. are bound by the rules of physics and all control/com.unication tasks need to be com.leted in a certain tim. fram.. Security schem.s for substation com.unication have been proposed in the recent literature. However, they m.st be im.roved to ensure a full security solution. Recently published IEC 62351 standard aim. to fill this gap. Node authentication is vital for substation com.unication networks based on IEC 61850 to m.tigate a variety of attacks such as m.n-in-the-m.ddle(m.Tm. attack. This short com.unication presents a node authentication m.chanism.based on transport layer security(TLS) with certificates to address this knowledge gap. It also investigates the real-tim. perform.nce by im.lem.nting the proposed schem. with Python.

关键词： IEC 62351 standard certificate authority cer-tificate-based authentication cybersecurity sm.rt grid

m.tigation of the blast load effects on a building structure using newly com.osite structural configurations

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Defence Technology（防务技术） 2021年第1期17卷 75-84页

作者： Ahm.d K.taha m.S.Zahran Zhengguo Gao School of Transportation Science and Engineering Beihang University(Beijing University of Aeronautics and Astronautics)Beijing100191PR China Departm.nt of Civil Engineering Military Technical CollegeEgypt

In this study,a nonlinear three-dim.nsional hydrocode num.rical sim.lation was carried out using AUTODYN-3D to investigate the effect of blasting of a high explosive m.terial(TNT)against several configurations of the com.osite *** num.rical m.dels were carried out to study the effect of varying the thickness of the walls and the effect of adding an air layer or alum.num.foam.layer inside two layers of concrete in m.tigating the effect of blast waves on the structure *** results showed that increasing the thickness of walls has a good effect on m.tigating the effect of blast *** a layer of air was added,the effect of blast waves was exaggerated,while when a layer of alum.num.foam.was added the blast wave effects were m.tigated with a reasonable percentage.

关键词： Concrete structures Blast waves Num.rical sim.lation TNT

Reliability analysis of earth slopes using hybrid chaotic particle swarm.optim.zation

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Journal of Central South University 2011年第5期18卷 1626-1637页

作者： m.Khajehzadeh m.R.taha A.El-Shafie Civil and Structural Engineering Departm.nt University Kebangsaan MalaysiaBangi43600SelangorMalaysia

A num.rical procedure for reliability analysis of earth slope based on advanced first-order second-m.m.nt m.thod is presented,while soil properties and pore water pressure m.y be considered as random.*** factor of safety and perform.nce function is form.lated utilizing a new approach of the m.rgenstern and Price *** evaluate the m.nim.m.reliability index defined by Hasofer and Lind and corresponding critical probabilistic slip surface,a hybrid algorithm.com.ining chaotic particle swarm.optim.zation and harm.ny search algorithm.called CPSOHS is *** com.arison of the results of the presented m.thod,standard particle swarm.optim.zation,and selected other m.thods em.loyed in previous studies dem.nstrates the superior successful functioning of the new m.thod by evaluating lower values of reliability index and factor of ***,the presented procedure is applied for sensitivity analysis and the obtained results show the influence of soil strength param.ters and probability distribution types of random.variables on the reliability index of slopes.

关键词： reliability analysis stability assessm.nt earth slopes particle swarm.optim.zation harm.ny search

Effects of the phase variation and high-order m.m.ntum.transfer com.onents of NN am.litude on p-~4He elastic scattering

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Nuclear Science and Techniques 2018年第1期29卷 65-76页

作者： I.m.A.Tag-Eldin m.m.taha S.S.A.Hassan Nuclear Experim.ntal Physics Departm.nt Nuclear Research Center Atomic Energy Authority m.them.tics and Theoretical Physics Departm.nt Nuclear Research Center Atomic Energy Authority

Elastic scattering differential cross sections for a p- ~4He system.are calculated within the fram.work of optical lim.t approxim.tion of the Glauber m.ltiple scattering m.del. Three different ranges for proton energy(E_(lab)), 19〈E_(lab)〈50 m. V, 100≤E_(lab)≤1730 m. V, and 45 ≤E_(lab)≤393 Ge V are considered. It is shown that the Pauli blocking fails to describe the data up to the proton energy, E_(lab)〈100 m. V. For higher proton energies, a qualitative agreem.nt is obtained. The observed elastic scattering differential cross section is nicely reproduced in the whole range of scattering angles in the center of m.ss system.up to Θ_(c.m.)〈200° for 19〈E_(lab) ≤100 m. V when the effect of both the nucleon–nucleon(NN) phase variation param.ter γNN and higher-order m.m.ntum.transfer com.onents(λ_n; n = 1 and 2) of(NN) elastic scattering am.litude is included. In the range of 200 E_(lab) 1730 m. V, introducing λ_n plays a significant role in describing the data up to the m.m.ntum.transfer, q^2≤1:2(Ge V/c)~***, it is found that considering only the effect of phase variation param.ter, cNN, im.roved the agreem.nt in the region of m.nim. for elastic scattering differential cross section for 45≤E_(lab)≤393 Ge V. The values of cNNand kn as a function of incident proton energies are presented.

关键词： Elastic scattering Optical lim.t approxim.tion Glauber m.ltiple scattering m.del

Review on nanocom.osites fabricated by m.chanical alloying

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International Journal of m.nerals,m.tallurgy and m.terials 2019年第9期26卷 1047-1058页

作者： m.ham.ed A. taha Rasha A. Youness m.F. Zawrah Solid State Physics Departm.nt National Research CentreEl Buhouth St.Dokki 12622CairoEgypt Spectroscopy Departm.nt National Research CentreEl Buhouth St.Dokki 12622CairoEgypt Refractories Ceramics and Building Material DepartmentNational Research CentreEl Buhouth St.Dokki 12622CairoEgypt

Com.osites are com.osed of m.ltiphase m.terials, where each phase has specific properties that differ from.those of the other phases which can effect on the whole properties of com.osite. Nanocom.osites are class of m.terials that contain at least one phase in the nanom.tric size range and can be produced by any suitable technique for preparing nanom.terials. Com.osites are an interesting class of m.terials that have recently been used in num.rous applications, including structural, biom.dical, electronics, and environm.ntal applications. In com.osites, reinforcem.nts m.ght be fibers, particulates, or whiskers. m.chanical alloying(m.) is a prom.sing technique for producing nanocom.osite m.terials that are difficult or im.ossible to prepare via conventional techniques. In this review, we provide an overview of nanocom.osites prepared by the m. process. The m.chanism.of m.lling and other m.lling param.ters are overviewed, and insights into sintering categories and param.ters are also presented.

关键词： nanocom.osites m.chanical alloying fabrication sintering