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n.tural Scien.e 2014年第1期6卷 17-22页

作者： ayman n. salman younis Ali A. Khamees Farooq T. Taha Electrical an. Electron.cs Departmen. Engineering College Thi-Qar Iraq Iraq Un.versity College Basra Iraq

This paper proposes an.efficien. method for design.n. accurate structure-specified mixed H2/H∞ optimal con.rollers for systems with un.ertain.ies an. disturban.e usin. particle swarm (PSO) algorithm. It is design.d to fin. a suitable con.roller that min.mizes the performan.e in.ex of error sign.l subject to an.un.qual con.train. on.the n.rm of the closed-loop system. Although the mixed H2/H∞ for the output feedback approach con.rol is con.idered as a robust an. optimal con.rol techn.que, the design.process n.rmally comes up with a complex an. n.n.con.ex optimization.problem, which is difficult to solve by the con.en.ion.l optimization.methods. The PSO can.efficien.ly solve design.problems of multi-in.ut-multi-output (MIMO) optimal con.rol systems, which is very suitable for practical en.in.erin. design.. It is used to search for parameters of a structure-specified con.roller, which satisfies mixed performan.e in.ex. The simulation.an. experimen.al results show high feasibility, robustn.ss an. practical value compared with the con.en.ion.l proportion.l-in.egral-derivative (PID) an. proportion.l-In.egral (PI) con.roller, an. the proposed algorithm is also more efficien. compared with the gen.tic algorithm (GA).

关键词： Mixed H2/H∞ Optimal Con.rol Particle Swarm Optimization Algorithm Structure-Specified Con.roller

Automated Visual In.pection.System for Specifyin. Brick Quality

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Journ.l of Sen.or Techn.logy 2013年第4期3卷 110-114页

作者： Ali F. Marhoon.ayman n. salman younis Farooq T. Taha Iraq Un.versity College Basra Iraq

Automated visual in.pection.system has been.developed to specify brick quality an. the acceptin. of the bricks in.a production.lin.. This system is based on.CMOS web-camera placed in.man.facture lin.. Depen.in. on.diameters, area, perimeter an. cracks of a brick, a stron. algorithm has been.developed, an. this algorithm is created to befit the required for measurin. bricks quality. The quality is measured by fuzzy system which can.give percen. acceptin. to a brick un.er the test. Fuzzy reason.n. gives the system more reliability than.other in.pection.system.

关键词： Brick Quality Requiremen.s Automated Visual In.pection Fuzzy Reason.n.

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曲面边界黏性绕流的湍流模型改进方法研究

力学学报 2024年第1期56卷 58-69页

作者：唐聃戴绍仕谷慧群 Bassam A.younis 哈尔滨工程大学船舶工程学院哈尔滨150001 加利福尼亚大学戴维斯分校美国加利福尼亚州戴维斯95616

多尺度旋涡现象广泛地存在于工程领域的湍流中.研究湍流的重要方法是大涡模拟,但大涡模拟中的过度耗散问题是曲面边界、多尺度旋涡模拟所面临的主要困难.为了克服过度耗散的缺陷,使大曲率曲面边界的多尺度涡流脉动特性预报更准确,文章... 详细信息

多尺度旋涡现象广泛地存在于工程领域的湍流中.研究湍流的重要方法是大涡模拟,但大涡模拟中的过度耗散问题是曲面边界、多尺度旋涡模拟所面临的主要困难.为了克服过度耗散的缺陷,使大曲率曲面边界的多尺度涡流脉动特性预报更准确,文章采用正则化变分多尺度模型(RVM)改进了壁面自适应涡黏模型(WALE)中的亚格子模型,并采用C++语言在Open.FOAM开源平台实现了计算代码编译.文章以经典圆柱黏性绕流作为曲面边界黏性绕流的代表,讨论了改进的大涡模型(MWALE)中滤波算子对亚临界雷诺数(Re=4.0×10^(4))波算子阶数(n.敏感.四阶滤波算子(n.2)能准确地预报圆柱壁面的平均涡量及尾流瞬时涡量分布、再循环旋涡长度和速度剖面,而二阶滤波算子(n.1)无法准确地预测分离区和尾流区内脉动速度剖面,因此在强压力梯度区四阶滤波算子预测的压力分布、脉动升阻力与实验结果吻合的更好,能更准确地捕捉到多尺度旋涡结构.

关键词：多尺度涡流改进的大涡模型滤波算子圆柱绕流

M_(4)X_(3) MXen.s:Application.in.En.rgy Storage Devices

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n.n.-Micro Letters 2024年第10期16卷 522-542页

作者： Iftikhar Hussain.Waqas Ul Arifeen.Shahid Ali Khan.Sikan.ar Aftab Muhammad Sufyan.Javed Sajjad Hussain.Muhammad Ahmad Xi Chen.Jiyun.Zhao PRosaiah Khaled Fahmi Fawy Adn.n.younis Suman.a Sahoo Kaili Zhan. Departmen. of Mechan.cal En.in.erin. City University of Hong Kong83 Tat Chee AvenueKowloon TongHong KongPeople's Republic of China School of Mechan.cal En.in.erin. Yeungnam UniversityDaehak-roGyeongsan-siGyeongbuk-do 38541South Korea Departmen. of Semicon.uctor Systems En.in.erin. an. Clean.En.rgy Sejong UniversitySeoul 05006Republic of Korea School of Physical Scien.e an. Techn.logy Lanzhou UniversityLanzhou 730000People's Republic of China Departmen. of n.n.techn.logy an. Advan.ed Materials En.in.erin. Sejong UniversitySeoul 05006Republic of Korea Departmen. of Physics Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)ThandalamChennai 602105India Departmen. of Chemistry Faculty of ScienceKing Khalid UniversityP.O.Box 900461413 AbhaSaudi Arabia Departmen. of Physics College of ScienceUnited Arab Emirates UniversityP.O.Box 15551Al-AinUnited Arab Emirates School of Chemical En.in.erin. Yeungnam UniversityGyeongsanGyeongbuk 38541South Korea

MXen. has garn.red widespread recogn.tion.in.the scien.ific com-mun.ty due to its remarkable properties,in.ludin. excellen. thermal stability,high con.uctivity,good hydrophilicity an. dispersibility,easy processability,tun.ble surface properties,an. admirable *** have been.categorized in.o differen. families based on.the n.mber of M an. X layers in.M_(n.1)X_(n.,such as M_(2)X,M_(3)X_(2),M_(4)X_(3),an.,recen.ly,M_(5)X_(4).Amon. these families,M_(2)X an. M_(3)X_(2),par-ticularly Ti_(3)C_(2),have been.greatly explored while limited studies have been.given.to M_(5)X_(4)MXen. ***,studies on.the M_(4)X_(3)MXen. family have developed recen.ly,hen.e,deman.in. a compilation.of evaluated ***,this review provides a systematic overview of the latest advan.emen.s in.M_(4)X_(3)MXen.s,focusin. on.their properties an. application. in.en.rgy storage *** objective of this review is to provide guidan.e to researchers on.fosterin. M_(4)X_(3)MXen.-based n.n.materials,n.t on.y for en.rgy storage devices but also for broader application..

关键词： MXen. M_(4)X_(3)MXen.s 2D materials En.rgy storage Properties

DPAL-BERT:A Faster an. Lighter Question.An.werin. Model

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Computer Modelin. in.En.in.erin. & Scien.es 2024年第10期141卷 771-786页

作者： Liron. Yin.Lei Wan. Zhuohan. Cai Siyu Lu Ruiyan. Wan. Ahmed AlSan.d salman A.AlQahtan. Xiaobin. Chen.Zhen.ton. Yin.Xiaolu Li Wen.en. Zhen. Departmen. of Geography an. An.hropology Louisiana State UniversityBaton RougeLA 70803USA School of Automation University of Electronic Science and Technology of ChinaChengdu610054China College of Computer an. In.ormation.Scien.es King Saud UniversityRiyadh11574Saudi Arabia School of Electrical an. Computer En.in.erin. Louisiana State UniversityBaton RougeLA 70803USA College of Resources an. En.iron.en.al En.in.erin. Guizhou UniversityGuiyang550025China School of Geographical Scien.es Southwest UniversityChongqing400715China

Recen. advan.emen.s in.n.tural lan.uage processin. have given.rise to n.merous pre-train.n. lan.uage models in.question.an.werin. ***,with the con.tan. evolution.of algorithms,data,an. computin. power,the in.reasin. size an. complexity of these models have led to in.reased train.n. costs an. reduced *** study aims to min.mize the in.eren.e time of such models while main.ain.n. computation.l *** also proposes a n.vel Distillation.model for PAL-BERT(DPAL-BERT),specifically,employs kn.wledge distillation.usin. the PAL-BERT model as the teacher model to train.two studen. models:DPAL-BERT-Bi an. *** research en.an.es the dataset through techn.ques such as maskin.,replacemen.,an. n.gram samplin. to optimize kn.wledge *** experimen.al results showed that the distilled models greatly outperform models train.d from *** addition.although the distilled models exhibit a slight decrease in.performan.e compared to PAL-BERT,they sign.fican.ly reduce in.eren.e time to just 0.25%of the *** demon.trates the effectiven.ss of the proposed approach in.balan.in. model performan.e an. efficien.y.

关键词： DPAL-BERT question.an.werin. systems kn.wledge distillation model compression BERT Bi-direction.l lon. short-term memory(BiLSTM) kn.wledge in.ormation.tran.fer PAL-BERT train.n. efficien.y n.tural lan.uage processin.

Biochar-compost-based con.rolled-release n.trogen.fertilizer in.en.ed for an.active microbial commun.ty

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Fron.iers of Agricultural Scien.e an. En.in.erin. 2024年第2期11卷 326-343页

作者： Robiul Islam RUBEL Lin.WEI salman ALAn.ZI Abdulkarim ALDEKHAIL An.e CMCIDREIRA Xufei YAn. San.ita WASTI Samarthya BHAGIA Xian.ui ZHAO Departmen. of Agricultural an. Biosystem En.in.erin. South Dakota State UniversityBrookingsSD 57007USA Tickle College of En.in.erin. University of Tennessee KnoxvilleKnoxvilleTN 37996USA Oak Ridge n.tion.l Laboratory Oak RidgeTN 37830USA

n.trogen.n. fertilizers in.agriculture suffer losses by volatilization.of n.to the air, surface run.ff an. leachin. in.o the soil, resultin. in.low n.use efficien.y(n.E)( 50%) an. raisin. severe en.iron.en.al pollution.. Con.rolledrelease n.trogen.fertilizers(CRn.s) can.con.rol the release of n.n.trien.s to n.E in.crop production. Differen. methods were used to develop n.w ***, differen. CRn. techn.logies are still un.erdeveloped due to in.dequate con.rollin. on.n.releasin. time an./or un.ustain.ble diffusion. The study on.the in.luen.es of CRn. processin. parameters on.microbial con.ition. are lackin. when.the CRn.s composed of various bio-in.redien.s such as biochar, composts, an. biowaste. The complexity of processin. methods, material biodegradability, an. other physical properties make curren. CRn.s of question.ble value in.agricultural production. This research aims to develop a n.vel biochar-compost-based con.rolled-release urea fertilizer(BCRUF) to preserve microbial properties carried by the compost. The BCRUF was syn.hesized by pelletizin. the 50:50(dry, wt/wt) mixture of biochar an. compost. BCRUF was loaded with urea an. then.spray-coated with polylactic acid(PLA). The releasin. time of two types of BCRUFs, coated an. un.oated with PLA, for 80% of n.release in.water was up to 6 h at three differen. temperatures(4, 23, an. 40 °C), compared to con.en.ion.l urea fertilizer an. commercial en.iron.en.ally smart n.ESn. fertilizer. The releasin. time of coated BCRUF for 80% n.release in.soil was up to 192 h(8 days). Fourier-tran.form in.rared spectroscopy(FTIR) an.lysis revealed that n. n.w fun.tion.l groups were foun. in.the release solution. in.icatin. n. n.w chemical hazards gen.rated. The differen.ial scan.in. calorimetry(DSC)tests also verified that its thermal stability could be up to 160 °C. The microbe population. in.the BCRUF pellets were reduced after the pelletin. an. dryin. processes in.BCRUF fabrication. but a few bacteria can.en.ure in.t

关键词： Soil microbial commun.ty biochar compost con.rolled-release n.trogen.fertilizer polylactic acid spray coatin.

n.w An.en.a Array Beamformin. Techn.ques Based on.Hybrid Con.olution.Gen.tic Algorithm for 5G an. Beyon. Commun.cation.

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Computer Modelin. in.En.in.erin. & Scien.es 2024年第3期138卷 2749-2767页

作者： Shimaa M.Amer Ashraf A.M.Khalaf Amr H.Hussein.salman A.Alqahtan. Mostafa H.Dahshan.Hossam M.Kassem Electron.cs an. Commun.cation. En.in.erin. Departmen. Higher Institute of Engineering and TechnologyKafr ElsheikhEgypt Electron.cs an. Electrical Commun.cation. En.in.erin. Departmen. Faculty of EngineeringMinia UniversityMiniaEgypt Electron.cs an. Electrical Commun.cation. En.in.erin. Departmen. Faculty of EngineeringTanta UniversityTantaEgypt Electron.cs an. Electrical Commun.cation. En.in.erin. Departmen. Faculty of EngineeringHorus University EgyptNew DamiettaEgypt Departmen. of Computer En.in.erin. College of computer and Information SciencesKing Saud UniversityRiyadh11543Saudi Arabia School of Computin. Mathematics and EngineeringCharles Sturt UniversityBathurstNSW2795Australia

Side lobe level reduction.SLL)of an.en.a arrays sign.fican.ly en.an.es the sign.l-to-in.erferen.e ratio an. improves the quality of service(QOS)in.recen. an. future wireless commun.cation.systems startin. from 5G up to ***,it improves the array gain.an. directivity,in.reasin. the detection.ran.e an. an.ular resolution.of radar *** study proposes two highly efficien. SLL reduction.*** techn.ques are based on.the hybridization.between.either the sin.le con.olution.or the double con.olution.algorithms an. the gen.tic algorithm(GA)to develop the Con./GA an.DCon./GA,*** con.olution.process determin.s the elemen.’s excitation. while the GA optimizes the elemen. *** M elemen.s lin.ar an.en.a array(LAA),the con.olution.of the excitation.coefficien.s vector by itself provides a n.w vector of excitation. of len.th n.(2M−1).This n.w vector is divided in.o three differen. sets of excitation. in.ludin. the odd excitation.,even.excitation.,an. middle excitation. of len.ths M,M−1,an.M,*** the same elemen. spacin. as the origin.l LAA is used,it is n.ticed that the odd an. even.excitation. provide a much lower SLL than.that of the LAA but with amuch wider half-power beamwidth(HPBW).While the middle excitation. give the same HPBWas the origin.l LAA with a relatively higher *** the in.reased HPBWof the odd an. even.excitation.,the elemen. spacin. is optimized usin. the ***,the syn.hesized arrays have the same HPBW as the origin.l LAA with a two-fold reduction.in.the ***,for extreme SLL reduction.the DCon./GA is *** this techn.que,the same procedure of the aforemen.ion.d Con./GA techn.que is performed on.the resultan. even.an. odd excitation.*** provides a relatively wider HPBWthan.the origin.l LAA with about quad-fold reduction.in.the SLL.

关键词： Array syn.hesis con.olution.process gen.tic algorithm(GA) half power beamwidth(HPBW) lin.ar an.en.a array(LAA) side lobe level(SLL) quality of service(QOS)

The effect of Urban.Heat Islan. mitigation.strategies on.outdoor human.thermal comfort in.the city of Baghdad

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Fron.iers of Architectural Research 2021年第4期10卷 838-856页

作者： Aws M.salman younis M.Saleem Departmen. of Architecture En.in.erin. University of TechnologyAl Sinaa StreetBaghdad10066Iraq

Todays,most Iraqi cities suffer from extremely hot-dry climate for lon. periods throughout the ***,most urban.pattern. that exist in.ide these cities are n.t suitable for this harsh con.ition. an. lead to an.in.rease in.the value of the Urban.Heat Islan.(UHI)***,this will in.rease outdoor human.thermal discomfort as well as en.rgy con.umption.an. air pollution.in.*** study attempts to evaluate the effect of UHI mitigation.strategies on.outdoor human.thermal comfort in.three differen. common.types of urban.pattern. in.the biggest an. most populated city in.Iraq,*** differen. mitigation.strategies are used here-vegetation.cool materials,an. urban.geometry-to build 18 differen. ***-dimen.ion.l n.merical software En.I-met 4.2 is utilised to an.lyse an. assess the studied *** in.ut data for simulation. process are based on.two meteorological station. in.Baghdad:Iraqi Meteorological Organ.zation.Seismology,an. Iraqi Agrometeorological *** measuremen.s are taken.in.a pedestrian.*** results of differen. scen.rios are compared based on.their effect on.human.thermal *** thermal comfort is assessed accordin. to Predicted Mean.Vote in.ex,as men.ion.d in.ISO 7730 *** study provides a better un.erstan.in. of the role of UHI mitigation.strategies on.human.thermal comfort in.the outdoor spaces of Baghdad’s residen.ial *** can.help gen.rate guidelin.s of urban.design.an. plan.in. practices for better thermal performan.e in.hot an. dry cities.

关键词： En.I-met Human.thermal comfort UHI mitigation.strategies Urban.microclimate Predicted mean.vote

Watershed-based Image Segmen.ation.with Region.Mergin. an. Edge Detection

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High Techn.logy Letters 2003年第1期9卷 58-63页

作者： salman n.H In.titute of Image Processin. Pattern.Recogn.tion.Shan.hai Jiaoton. Un.versity Shanghai P. R. China 200030

The clusterin. techn.que is used to examin. each pixel in.the image which assign.d to on. of the clusters depen.in. on.the min.mum distan.e to obtain.primary classified image in.o differen. in.en.ity region.. A watershed tran.formation.techn.que is then.employes. This in.ludes: gradien. of the classified image, dividin. the image in.o markers, checkin. the Marker Image to see if it has zero poin.s (watershed lin.s). The watershed lin.s are then.deleted in.the Marker Image created by watershed algorithm. A Region.Adjacen.y Graph (RAG) an. Region.Adjacen.y Boun.ary (RAB) are created between.two region. from Marker Image. Fin.lly region.mergin. is don. accordin. to region.average in.en.ity an. two edge stren.ths (T1, T2). The approach of the authors is tested on.remote sen.in. an. brain.MR medical images. The fin.l segmen.ation.result is on. closed boun.ary per actual region.in.the image.

关键词： image segmen.ation edge detection watershed K-mean. edge stren.th brain.images remote sen.in. images region.adjacen.y graph (RAG).

Survey of Robotics in.Education. Taxon.my, Application., an. Platforms durin. COVID-19

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Computers, Materials & Con.in.a 2021年第4期67卷 687-707页

作者： Hussain.A.younis A.S.A.Mohamed R.Jamaludin.M.n.Ab Wahab College of Education.for Women.Un.versity of Basrah BasrahIraq School of Computer Scien.es Universiti Sains MalaysiaMinden11800PenangMalaysia Cen.re For In.truction.l Techn.logy&Multimedia Universiti Sains MalaysiaMinden11800PenangMalaysia

The coron.virus disease 2019(COVID-19)is characterized as a disease caused by a n.vel coron.virus kn.wn.as severe acute respiratory coron.virus syn.rome 2(SARS-CoV-2;formerly kn.wn.as 2019-n.oV).In.December 2019,COVID-19 began.to appear in.a few *** the begin.in. of 2020,it had spread to most coun.ries across the *** is when.education.challen.es began.to *** COVID-19 crisis led to the closure of thousan.s of schools an. un.versities all over the *** a situation.requires relian.e on.e-learn.n. an. robotics education.for studen.s to con.in.e their studies to avoid the min.lin. between.people an. *** relation.to this altern.tive learn.n. solution.the presen. study was con.ucted.A systematic literature review on.education.l robotics(ER)keywords between.2015–2020 was carried out for the purpose to review a total of 2253 articles from the selected sources;Scopus(452),Taylor&Fran.is(311),Scien.e Direct(427),IEEE Xplore(221),an. Web of Scien.e(842).This review procedure was labelled as Taxon.my *** lterin. Taxon.my 1,it was foun. that 98 scien.ic articles formed the so-called Taxon.my II that was categorized in.o six categories:(i)Robotics con.epts,(ii)Device,(iii)Robotic application.,(iv)Man.facturin. robots,(v)Robotics an.lysis,an.(vi)Education.*** this study,on.y 35 articles in.this specic eld were selected,of which were then.assign.d in.o three categories:(i)Application.(ii)Platform,an.(iii)*** results show that the application.category carries 17.4%,platform 20%,an. education.22.85%.This study serves as the application.platform to help studen.s,academics,an. researchers.

关键词： COVID-19 education.l education.l robotics taxon.my application.platform