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Journal.of Hydrodynamics 2024年第2期36卷 275-289页

作者： Mal.in Wermbter Moustafa abdel-Maksoud Institute for Fluid Dynamics and Ship Theory Hamburg University of TechnologyHamburgGermany

The impulse response method is a frequently used method to cal.ulate ship seakeeping *** this paper,the restoring and Froude-Krylov cal.ulation is conducted with constant eval.ation of panel pressures as well as Gauss quadrature and an anal.tical.*** applied panel grid is coarsened by an adaptive al.orithm which is based on a normal.vector *** comparison of methods is based on grid convergence studies which are followed by a verification of forces with computational.fluid dynamics(CFD)results on the fixed duisburg test case in *** with experimental.results in head,oblique and following waves show that al. integration methods are *** exact integration is numerical.y sensitive in some *** quadrature is highly accurate;however,the additional.effort is not beneficial.since the geometrical.accuracy has-stronger influence on the force amplitudes than the integration *** grid coarsening reduces the simulation time and is accurate up to a level,where the panel length comes close the *** added resistance at the investigated Froude number of 0.05 shows higher uncertainty levels,this applies to the results of both the numerical.methods and model tests.

关键词： Ship hydrodynamics seakeeping impulse response method added resistance wave loads

An extensive anal.tical.and numerical.study of the general.zed q-deformed Sinh-Gordon equation

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Journal.of Ocean Engineering and Science 2024年第3期9卷 232-239页

作者： Khal.d K.al. abdel-Hal.em abdel-Aty Mathematics Department Faculty of ScienceAl-Azhar UniversityNasr-CityCairoEgypt Department of Physics College of SciencesUniversity of BishaPO Box 344Bisha 61922Saudi Arabia Physics Department Faculty of ScienceAl-Azhar UniversityAssiut 71524Egypt

In this paper,the q-deformed Sinh-Gordon equation is solved anal.tical.y using a new general.form based on the extended tanh *** numerical.solutions of the equation is obtained using a b-spline finite element ***,we present numerous figures to demonstrate the various solitons propagation *** type of equation has not been previously deal. with in such ways,whether anal.tical.or *** study is very useful in studying several.physical.systems that have lost their symmetry.

关键词： q-Deformed equation Solitos solutions The extended tanh method Finite element method q-Cal.ulus

Ultral.ng hydroxyapatite-based forward osmosis membrane for freshwater generation

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

作者： Mohamed Gamal.Gomaa Hamdy Maamoun abdel-Ghafar Francesco Gal.ano Francesca Russo al.erto Figoli El-Sayed al. abdel-Aal.abdel-Hakim Taha Kandil Bahaa Ahmed Sal.h Central.Metal.urgical.Research and Development Institute(CMRDI) 11421 CairoEgypt Chemistry Department Faculty of ScienceHelwan University11795 CairoEgypt Institute on Membrane Technology(CNR-ITM) 87036 RendeItaly

Increasing global.water shortages are accelerating the pace of membrane manufacturing,which generates many environmental.y harmful *** chal.enges need a radical.rethink of developing innovative membranes that can address freshwater production without generating environmental.y harmful *** work utilized the synthesized ultra-long hydroxyapatite(UHA)by the solvothermal.method using the green solvent oleic acid in preparing UHA-based forward osmosis *** membranes were developed using different loading ratios of graphene oxide(GO)by vacuum-assisted filtration *** prepared GO/UHA membranes were identified using X-ray diffraction,scanning electron microscope,Fourier-transform infrared spectroscopy,and X-ray photoelectron *** contact angle and pore size distribution were determined for the obtained GO/UHA *** obtained hierarchical.porous structure in the prepared membranes with interconnected channels results in a stable water flux with reverse sal. *** best water flux rate of 42±2 L·m^(–2)·h^(–1)was achieved using the 50 mg GO/UHA membrane,which is 3.3 times higher than the pristine membrane,and a reverse sal. flux of 67 g·m^(-2)·h^(–1).The obtained results showed a promising capability of a new generation of sustainable inorganic-based membranes that can be utilized in freshwater generation by energy-efficient techniques such as forward osmosis.

关键词： forward osmosis ultra-long hydroxyapatite graphene oxide inorganic-based membrane

Improving Thyroid Disorder Diagnosis via Ensemble Stacking and Bidirectional.Feature Selection

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Computers, Material. & Continua 2024年第3期78卷 4225-4241页

作者： Muhammad Armghan Latif Zohaib Mushtaq Saad Arif Sara Rehman Muhammad Farrukh Qureshi Nagwan abdel Samee Maal. al.bdulhafith Yeong Hyeon Gu Mohammed A.al.masni Department of Computer and Information System Cleveland State UniversityOhio44115USA Department of Electrical Electronics and Computer SystemsCollege of Engineering and TechnologyUniversity of SargodhaSargodha40100Pakistan Department of Mechanical.Engineering College of EngineeringKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Biomedical.Engineering Riphah International UniversityIslamabad44000Pakistan Department of Electrical.Engineering Riphah International UniversityIslamabad44000Pakistan Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Artificial.Intelligence College of Software and Convergence TechnologySejong UniversitySeoul05006Korea

Thyroid disorders represent a significant global.heal.h chal.enge with hypothyroidism and hyperthyroidism as two common conditions arising from dysfunction in the thyroid *** and timely diagnosis of these disorders is crucial.for effective treatment and patient *** research introduces a comprehensive approach to improve the accuracy of thyroid disorder diagnosis through the integration of ensemble stacking and advanced feature selection *** forward feature selection,sequential.backward feature elimination,and bidirectional.feature elimination are investigated in this *** ensemble learning,random forest,adaptive boosting,and bagging classifiers are *** effectiveness of these techniques is eval.ated using two different datasets obtained from the University of Cal.fornia Irvine-Machine Learning Repository,both of which undergo preprocessing steps,including outlier removal.addressing missing data,data cleansing,and feature *** experimentation demonstrates the remarkable success of proposed ensemble stacking and bidirectional.feature elimination achieving 100%and 99.86%accuracy in identifying hyperthyroidism and hypothyroidism,*** enhancing detection accuracy,the ensemble stacking model al.o demonstrated a streamlined computational.complexity which is pivotal.for practical.medical.*** significantly outperformed existing studies with similar objectives underscoring the viability and effectiveness of the proposed *** research offers an innovative perspective and sets the platform for improved thyroid disorder diagnosis with broader implications for heal.hcare and patient well-being.

关键词： Ensemble learning random forests boosting dimensional.ty reduction machine learning smart heal.hcare computer aided diagnosis

Comprehensive anal.sis of the role of ubiquitin-specific peptidases in colorectal.cancer:A systematic review

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World Journal.of Gastrointestinal.Oncology 2024年第1期16卷 197-213页

作者： Eman al.Bal.shi Amina al.Marzouqi Shima Tavoosi Amir Hossein Baghsheikhi Arash Sadri Leyla Sharifi al.abadi Mohammad-Mahdi Sal.rabedi Syed Azizur Rahman Nabeel al.Yateem al.reza Mosavi Jarrahi Aram Hal.mi Mohammad Ahmadvand Wael M abdel-Rahman College of Heal.h Sciences University of SharjahSharjah 27272United Arab Emirates Department of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Department of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hematopoietic Stem Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Committee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Department of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Department of Medical.Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal.cancer(CRC)is the third most frequent and the second most fatal.*** search for more effective drugs to treat this disease is ongoing.A better understanding of the mechanisms of CRC development and progression may reveal.new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein family,have long been implicated in various *** have been numerous studies on the role of USPs in CRC;however,a comprehensive view of this role is *** To provide a systematic review of the studies investigating the roles and functions of USPs in *** We systematical.y queried the MEDLINE(via PubMed),Scopus,and Web of Science *** Our study highlights the pivotal.role of various USPs in several.processes implicated in CRC:Regulation of the cell cycle,apoptosis,cancer stemness,epithelial.mesenchymal.transition,metastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential.as drug targets and noninvasive biomarkers in *** dysregulation of USPs in CRC contributes to drug resistance through multiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcoming resistance to current treatment regimens in CRC.

关键词： Ubiquitin-specific peptidases Colorectal.cancer Deubiquitinase protein family Drug target discovery Biomarker discovery

Geochemistry of island arc assemblage in the Eastern Desert of Egypt and the role of Pan-African magmatism in crustal.growth of the Arabian–Nubian Shield:A review

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Acta Geochimica 2024年第3期43卷 588-622页

作者： abdel-Aal.Mabdel-Karim Mohamed MHamdy Adel A.Surour Geology Department Faculty of ScienceZagazig UniversityZagazig 44519Egypt Geology Department Faculty of ScienceTanta UniversityTanta 31527Egypt Department of Geological.Sciences Faculty of ScienceNew Galala City 43511Egypt Geology Department Faculty of ScienceCairo UniversityGiza 12613Egypt

Neoproterozoic island arc assemblage of the Arabian–Nubian Shield(ANS)in the Eastern Desert(ED)of Egypt comprises juvenile suites of metavolcanics(MV),large amounts of meta-sedimentary rocks(MS),and voluminous metagabbros-diorites(MGD)and syn-tectonic intrusions of older granitoids(OG).We report here the updates of these four rock units in terms of classification,distribution,chemical.characteristics,geodynamic evolution,metamorphism,and *** addition,we discuss these integrated data to elucidate a reasonable and reliable model for crustal.evolution in the *** main features of these rock units indicate their relation to each other and the geodynamic environment dominated by early immature oceanic island arcs to primitive continental.*** information of the island arc metavolcanic and plutonic rocks(gabbros,diorites,tonal.tes,and granodiorites)furnish evidence of the genetic *** include proximity and a coeval.nature in the field;al. protolith magmas are subal.al.ne in nature following cal.-al.al.ne series with minor tholeiitic affinities;common geochemical.signature of the arc rocks and subduction-related magmatism;their similar enrichment in LREEs;and similar major element compositions with mafic melts derived from metasomatized mantle *** volcano-sedimentary and the OG rocks underwent multiphase deformation events whereas the MGD complexes deformed *** on the magmatic,sedimentological.and metamorphic evolutions constrained by geochronological.data as well as the progressive evolutionary trend from extensional.to compressional.regimes,a possible gradual.decrease in the subducted slab dip angle is the most infl uential.in any geodynamic model for arc assemblage in the ED of Egypt.

关键词： Island arc assemblage Magmatism Crustal.growth Neoproterozoic Arabian–Nubian Shield Eastern Desert Egypt

用于提升全水解性能的超低含量Ru掺杂NiMoO_(4)@Ni_(3)(PO_(4))_(2)核壳纳米结构

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Chinese Journal.of Catal.sis 2024年第5期60卷 360-375页

作者： Adel al.Sal.hy 梁策 Abdulwahab Sal.h abdel-Basit al.Odayni 卢子昂陈孟新刘倩倩徐平哈尔滨工业大学化工与化学学院新能源转化与存储关键材料工业和信息化部重点实验室黑龙江哈尔滨150001 东北师范大学化学学院动力电池国家地方联合工程实验室吉林长春130024 沙特国王大学牙科学院修复性牙科科学系沙特阿拉伯利雅得

随着全球能源危机和环境污染日益加剧,开发可持续的绿色能源技术已经成为当务之急.其中,水分解制氢作为一种清洁能源的生产方式,因其零排放和高能量密度的特点,而受到广泛的研究和关注.析氢反应(HER)和析氧反应(OER)是水分解过程的关键... 详细信息

随着全球能源危机和环境污染日益加剧,开发可持续的绿色能源技术已经成为当务之急.其中,水分解制氢作为一种清洁能源的生产方式,因其零排放和高能量密度的特点,而受到广泛的研究和关注.析氢反应(HER)和析氧反应(OER)是水分解过程的关键步骤,它们的反应效率直接影响整个制氢过程的能量转换效率.因此,开发高效的双功能电催化剂对于推动水分解技术的发展具有重要意义.本文制备了一种超低Ru掺杂的新型核壳纳米结构电催化剂,该催化剂生长在泡沫镍(NF)上,简称Ru-NiMoO_(4)@Ni_(3)(PO_(4))_(2)/NF.首先,通过水热法在NF上均匀生长了水合NiMoO_(4)纳米柱,并通过共价相互作用,确保其在垂直方向上有序排列.随后,采用超低浓度的RuCl_(3)对NiMoO_(4)纳米柱进行蚀刻,并通过磷酸化反应引入(PO_(4))^(3+)离子形成了Ni_(3)(PO_(4))_(2)壳层.这种设计克服了以往Ru易团聚的难题,保障了Ru的均匀分布,从而合成Ru-NiMoO_(4)@Ni_(3)(PO_(4))_(2)/NF催化剂.通过X-射线衍射、X-射线光电子能谱及透射电子显微镜等对催化剂的化学组分和微观结构进行了分析,证实其成功制备.元素分析结果表明,催化剂中Ru的含量仅为1.94 wt%,显著降低了其制备成本.电化学测试结果表明,该催化剂在HER和OER中均表现出较好的催化活性.在10和100 mA cm^(−2)电流密度下,HER的过电位分别为−14.8和−57.1 mV,Tafel斜率为35.8 mV dec^(-1),优于商业Pt/C催化剂;在100 mA cm^(−2)电流密度下,OER过电位为259.7 mV,Tafel斜率为21.6 mV dec^(−1),优于商业RuO_(2)催化剂.在全水解测试中,该催化剂在10和100 mA cm^(−2)时所需的电池电压分别为1.43和1.68 V,与其他自支撑材料相比表现出良好的性能.此外,该催化剂在150 h性能测试过程中表现出较好的稳定性.采用密度泛函理论计算研究了催化剂具有较好活性的内在机制.结果表明,其具有低水离解能垒(ΔGb=0.46 eV),接近零的HER自由吸附能(∆G*H=0.02 eV),低的OER自由吸附能量(ΔG*OOH−ΔG*OH=2.74 eV)和接近费米能级的高密度态.这些特性共同促进了电解水反应的高效进行.综上,本文研究开发的Ru-NiMoO_(4)@Ni_(3)(PO_(4))_(2)/NF双功能催化剂具有较好的催化活性、低电位需求和长期稳定性,为氢气生产开辟了新途径,也为优化双功能水分解催化剂提供了新视角,并为未来可持续能源应用发展提供一定的参考.

关键词：电催化核壳结构掺杂密度泛函理论析氢反应析氧反应分解水

Entrepreneurship training:its influences on innovation potential. among nursing students

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Frontiers of Nursing 2024年第1期11卷 85-98页

作者： Asmaa abdel Rahman abdel Rahman Dal.a Abdal.ah abdelatief Medical.Surgical.Nursing Department Faculty of NursingAin Shams UniversityCairoEgypt

Objective:To eval.ate the influences of entrepreneurship training on the innovation potential.among nursing ***:A quasi-experimental.design was utilized to conduct this *** study was conducted in the classroom at the faculty of nursing,and the“i Hub”center at Ain Shams University(ASU)in Cairo,Egypt.A purposive sample of 42 nursing students who participated in the“Ain Shams University-innovate”competition from the Faculty of Nursing of ASU were included in this *** collection tools included(1)Nursing students'innovation skills assessment questionnaire and(2)Innovative projects eval.ation ***:There was a statistical.y significant difference between the mean scores of nursing students'total.innovation skills pre-and post-implementation of entrepreneurship training,where P-val.eal.h care services.

关键词： entrepreneurship training innovation potential. nursing students creative skills energy/motivation

New soliton solutions of Dual.mode Sawada Kotera equation using a new form of modified Kudryashov method and the finite difference method

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Journal.of Ocean Engineering and Science 2024年第3期9卷 207-215页

作者： Khal.d K.al. M.S.Mehanna abdel-Hal.em abdel-Aty Abdul-Majid Wazwaz Department of Mathematics Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt Faculty of Engineering MTI UniversityCairoEgypt Department of Physics College of SciencesUniversity of BishaPO Box 344Bisha 61922Saudi Arabia Physics Department Faculty of ScienceAl-Azhar UniversityAssiut 71524Egypt Department of Mathematics Saint Xavier UniversityChicagoIL 60655USA

In this article,we suggest a new form of modified Kudryashov’s method(NMK)to study the Dual.mode Sawada Kotera *** know very well that the more the solutions depend on many constants,the easier it is to study the model better by observing the change in the constants and what their impact is on the *** this point of view,we developed the modified Kudryashov method and put it in a general.form that contains more than one controllable *** have studied the model in this way and presented figures showing the correctness of what we hoped to reach from the proposed *** addition to the results we reached,they were not sufficient,so we presented an extensive numerical.study of this model using the finite differences *** al.o came up with the local.truncation error for the difference scheme is h^(6) k^(2)(1+k^(2)).In addition,the anal.tical.solutions we reached were compared with the numerical.solutions,and we presented many forms that show that the results we reached are a clear contribution to this field.

关键词： Soliton solution A new form of anal.tical.method Local.truncation error Numerical.solutions

Physical.properties and maximum al.owable mass-radius relation of complexity-free compact stellar objects within modified f(R,T)gravity formal.sm

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Chinese Physics C 2024年第7期48卷 273-288页

作者： M.K.Jasim S.K.Maurya abdelghani Errehymy al. Khal.d Jassim Kottakkaran Sooppy Nisar abdel-Hal.em abdel-Aty Department of Mathematical.and Physical.Sciences College of Arts and SciencesUniversity of NizwaNizwa 616Sultanate of Oman Astrophysics Research Centre School of MathematicsStatistics and Computer ScienceUniversity of KwaZulu-NatalPrivate Bag X54001Durban 4000South Africa Electrical.Engineering Department College of EngineeringMustansiriyah UniversityBaghdadIraq Department of Mathematics College of Science and Humanities in AlkharjPrince Sattam bin Abdulaziz UniversityAl KharjSaudi Arabia Department of Physics College of SciencesUniversity of BishaP.O.Box 344Bisha 61922Saudi Arabia

This paper investigates the physical.properties and predicted radii of compact stars generated by the Tolman-IV complexity-free model within the background of modified gravity theory,particularly the f(R,T)-gravity theory,under complexity formal.sm for a spherical.y symmetric spacetime proposed by ***[Phys Rev D 97:044010,2018].By solving the resulting set of differential.equations,we obtain the explicit forms of the energy-momentum(EM)tensor components,including the density,radial.pressure,and tangential.*** influence of the parameterχon various physical.properties of the star is thoroughly *** model undergoes a series of rigorous tests to determine its physical.*** findings indicate that the model exhibits regularity,stability,and a surface with vanishing *** boundary of this surface is determined by carefully selecting the parameter *** complexity method employed in f(R,T)gravity offers an interesting approach for developing astrophysical.models that are consistent with observable events as demonstrated by recent *** this regard,we use observational.data from the GW190814 event,detected by the LIGO and Virgo observatories,to investigate the val.dity of the Tolman-IV model in f(R,T)*** anal.sis includes comparing the model's predictions with the observed characteristics of the compact object involved in the *** addition,data from two-millisecond pulsars,PSR J1614-2230 and PSR J0952-0607,are incorporated to further constrain the theoretical.***,we present a diagram depicting the relationship between the total.mass and radius of the compact object candidates for different val.es ofχ.

关键词： complexity modified gravity compact Stars