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Robust design of sliding m.de control for airship trajectory tracking with uncertainty and disturbance estim.tion

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Journal of System. Engineering and Electronics 2024年第1期35卷 242-258页

作者： WASIm.m.ham.ad ali Ahsan CHOUDHRY m.ham.ad Ahm.d SHAIKH Inam.Ul hasan SALEEm.Faisal Departm.nt of Aeronautics and Astronautics Engineering Institute of Space TechnologyIslamabad 44000Pakistan Departm.nt of Electrical Engineering University of Engineering and TechnologyTaxila 47080Pakistan Departm.nt of m.asurem.nts and Control System. Silesian University of TechnologyGliwice 44-101Poland The Joint Doctoral School Silesian University of TechnologyGliwice 44-100Poland

The robotic airship can provide a prom.sing aerostatic platform.for m.ny potential *** applications require a precise autonom.us trajectory tracking control for *** has a nonlinear and uncertain *** is prone to wind disturbances that offer a challenge for a trajectory tracking control *** paper addresses the airship trajectory tracking problem.having tim. varying reference path.A lum.ed param.ter estim.tion approach under m.del uncertainties and wind disturbances is opted against distributed *** uses extended Kalm.n filter(EKF)for uncertainty and disturbance *** estim.ted param.ters are used by sliding m.de controller(Sm.)for ultim.te control of airship trajectory *** com.rehensive algorithm.EKF based Sm.(ESm.),is used as a robust solution to track airship *** proposed estim.tor provides the estim.tes of wind disturbances as well as m.del uncertainty due to the m.ss m.trix variations and aerodynam.c m.del *** stability and convergence of the proposed m.thod are investigated using the Lyapunov stability *** sim.lation results show that the proposed m.thod efficiently tracks the desired *** m.thod solves the stability,convergence,and chattering problem.of Sm. under m.del uncertainties and wind disturbances.

关键词： airship chattering extended Kalm.n filter(EKF) m.del uncertainties estim.tion sliding m.de controller(Sm.)

A Review and Bibliom.tric Analysis of the Current Studies for the 6G Networks

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Com.uter m.deling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay m.Salih m..Arafatur Rahm.n Ahm.d Firdaus m.ham.ed Rajih Jassim.hasan Kahtan Jasni m.ham.d Zain Ahm.d Hussein ali Faculty of Com.uting Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Departm.nt of m.dical Equipm.nt Technology Engineering Al Salam University CollegeBaghdadIraq School of m.them.tics and Com.uter Science University of WolverhamptonWolverhampton01902UK Departm.nt of Production Engineering and m.tallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Departm.nt Com.uter Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional im.rovem.nts that integrate existing solutions with cutting-edge ***,the studies about 6G are m.inly lim.ted and scattered,whereas no bibliom.tric study covers the 6G ***,this study aim. to review,exam.ne,and sum.arize existing studies and research activities in *** study has exam.ned the Scopus database through a bibliom.tric analysis of m.re than 1,000 papers published between 2017 and ***,we applied the bibliom.tric analysis m.thods by including(1)docum.nt type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G com.unity’s trends,highlight im.ortant research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliom.tric wireless networks review

QT AG-m.dules whose h-Pure-S-High Subm.dules Have Closure

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Journal of m.them.tical Research with Applications 2024年第1期44卷 18-24页

作者： m.hd Nom.n ali Vinit Kum.r SHARm. Ayazul hasan Departm.nt of m.them.tics Shri Venkateshwara University College of Applied Industrial Technology Jazan University

A right m.dule m.over an associative ring R with unity is a QTAG-m.dule if every finitely generated subm.dule of any hom.m.rphic im.ge of m.is a direct sum.of uniserial *** article considers the closure of h-pure-S-high subm.dules of ***,we determ.ne all subm.dules S of a QTAG-m.dule m.such that each closure of h-pure-S-high subm.dule of m.is h-pure-■-high in■.A few results of this them. give a com.arison of som. elem.ntary properties of h-pure-S-high and S-high subm.dules.

关键词： QTAG-m.dules closures h-pure-S-high subm.dules

Clinically adaptable m.chine learning m.del to identify early appreciable features of diabetes

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Intelligent m.dicine 2024年第1期4卷 22-32页

作者： Nurjahan Nipa m.hm.dul hasan Riyad Shahriare Satu Walliullah Koushik Chandra Howlader m.ham.ad ali m.ni Departm.nt of Inform.tion and Com.unication Technology Bangabandhu Sheikh Mujibur Rahman Digital UniversityBangladeshKaliakairGazipur1750 Bangladesh Departm.nt of Applied m.them.tics Noakhali Science and Technology UniversityNoakhali3814Bangladesh Departm.nt of m.nagem.nt Inform.tion System. Noakhali Science and Technology UniversityNoakhali3814Bangladesh Departm.nt of Com.uter Science and Telecom.unication Engineering Noakhali Science and Technology UniversityNoakhali3814Bangladesh Departm.nt of Com.uter Science North Dakota State UniversityFargo58105NDUnited States School of Health and Rehabilitation Sciences Faculty of Health and Behavioural SciencesThe University of QueenslandSt LuciaQLD 4072Australia

Objective Diabetes m.llitus is a serious disease where the body of affected patients are failed to produce enough insulin that causes an abnorm.0}ty of blood *** disease happens for a num.er of reasons including m.dern lifestyle,lethargic attitude,unhealthy food consum.tion,fam.ly history,age,overweight,*** aim.of this study was to propose a m.chine learning based prediction m.del that detected diabetes at the *** In this work,we collected 520 patients records from.the University of California,Irvine(UCI)m.chine learning repository of Sylhet Diabetes Hospital,***,a sim.lar questionnaire of that hospital was followed and assem.led 558 patients records from.all over Bangladesh through this ***,we accum.lated patient records of these two *** the next step,these datasets were cleaned and applied thirty five state-of-arts classifiers such as logistic regression(LR),K nearest neighbors(KNN),support vector classifier(SVC),Nave Byes(NB),decision tree(DT),random.forest(RF),stochastic gradient descent(SGD),Perceptron,AdaBoost,XGBoost,passive aggressive classifier(PAC),ridge classifier(RC),Nu-support vector classifier(NuSVC),linear support vector classifier(LSVC),calibrated classifier CV(CCCV),nearest centroid(NC),Gaussian process classifier(GPC),m.ltinom.al NB(m.B),com.lem.nt NB,Bernoulli NB(BNB),categorical NB,Bagging,extra tree(ET),gradiant boosting classifier(GBC),Hist gradiant boosting classifier(HGBC),one vs rest classifier(OVsRC),m.lti-layer perceptron(m.P),label propagation(LP),label spreading(LS),stacking,ridge classifier CV(RCCV),logistic regression CV(LRCV),linear discrim.nant analysis(LDA),quadratic discrim.nant analysis(QDA),and light gradient boosting m.chine(LGBm.to explore best stable predictive *** perform.nce of the classifiers has been m.asured using five m.trics such as accuracy,precision,recall,F1-score,and area under the receiver operating ***,these outcom.s were interpret

关键词： Diabetes Early features m.chine learning Classification

Theory for Charge Density Wave and Orbital-Flux State in Antiferrom.gnetic Kagom. m.tal FeGe

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Chinese Physics Letters 2024年第4期41卷 90-104页

作者：马海洋殷嘉鑫 m.Zahid hasan 刘健鹏 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China Quantum.Science Center of Guangdong-HongKong-m.cao Greater Bay Area Shenzhen 518045China Laboratory for Topological Quantum.m.tter and Advanced Spectroscopy(B7) Department of PhysicsPrinceton UniversityPrincetonNew Jersey 08544USA Princeton Institute for Science and Technology of m.terials Princeton UniversityPrincetonNew Jersey 08544USA m.terials Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCalifornia 94720USA Liaoning Academ. of m.terials Shenyang 110167China

We theoretically study the charge order and orbital m.gnetic properties of a new type of antiferrom.gnetic kagom. m.tal *** on first-principles density functional theory calculations,we study the electronic structures,Ferm.-surface quantum.fluctuations,as well as phonon properties of the antiferrom.gnetic kagom. m.tal *** is found that charge density wave em.rges in such a system.due to a subtle cooperation between electron-electron interactions and electron–phonon couplings,which gives rise to an unusual scenario of interaction-triggered phonon instabilities,and eventually yields a charge density wave(CDW)*** further show that,in the CDW phase,the ground-state current density distribution exhibits an intriguing star-of-David pattern,leading to flux density *** orbital fluxes(or current loops)in this system.em.rge as a result of the subtle interplay between m.gnetism.lattice geom.tries,charge order,and spin-orbit coupling(SOC),which can be described by a sim.le,yet universal,tight-binding theory including a Kane-m.le-type SOC term.and a m.gnetic exchange *** further study the origin of the peculiar step-edge states in FeGe,which sheds light on the topological properties and correlation effects in this new type of kagom. antiferrom.gnetic m.terial.

关键词： interaction phonon orbital

Tuning structural,electrical,dielectric and m.gnetic properties of m.-Cu-Co ferrites via dysprosium.Dy^(3+))doping

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Journal of Rare Earths 2024年第1期42卷 137-146,I0005页

作者： m.ria Akhtar m.S.hasan Nasir Am.n N.A.m.rley m.ham.ad Im.an Arshad Departm.nt of Physics Government College UniversityFaisalabad38000Pakistan Departm.nt of Physics The University of Lahore53700Pakistan Departm.nt of m.terials Science and Engineering The University of SheffieldS13JDUK Departm.nt of Physics&Astronom. University College LondonUK

In current research work,Dy3+substituted m.0.5Cu0.25Co0.25Fe2-xDyxO4(0.0≤x≤0.04 with the step interval of 0.01)soft ferrites were synthesized by the sol-gel auto com.ustion *** prepared sam.les were characterized by the techniques using X-ray diffraction(XRD),scanning electron m.croscopy(SEm.,energy dispersive X-ray spectroscopy(EDS),Fourier transform.infrared(FTIR)spectroscopy,curre nt-voltage(Ⅰ-Ⅴ)m.asurem.nt,LCR m.ter,vibrating sam.le m.gnetom.ter(VSm.and *** data reveal that the average crystallite size is 49.71 nm.and the lattice constant is 0.83703 nm.for sam.le x=*** non-uniform.grain growth was dem.nstrated by m.crographs and im.urity-free elem.ntal com.osition was observed from.EDX *** DC resistivity has an increasing and decreasing trend in ferrom.gnetic and param.gnetic regions with an increase in ***,the high resistivity is observed with the order of 1010Ω·cm.and the activation energy is 0.944 eV for sam.les x=*** dielectric param.ters including dielectric constant,dielectric losses,and im.edance gradually decrease with the increase in frequency from.8 Hz to 8 *** m.nim.m.dielectric loss at high frequency is found for sam.le x=*** coercivity(Hc)and saturation m.gnetization(m.)are found in the ranges of 520.82-544.02 Oe and 20.5841-21.1473 em./g,*** observations confirm.that dysprosium.x=0.03)doped m.C-soft ferrites m.y be applicable in transform.r cores,m.crowave absorbance,and telecom.unication devices.

关键词： Soft ferrites DC resistivity Dielectric loss Im.edance Coercivity Rare earths

m.tabolic com.lications of psychotropic m.dications in psychiatric disorders:Em.rging role of de novo lipogenesis and therapeutic consideration

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World Journal of Psychiatry 2024年第6期14卷 767-783页

作者： m.ham.ad m.Khan Zaw ali Khan m.hsin ali Khan Laboratory of Translational Neurology and m.lecular Psychiatry Department of BiotechnologyEra’s Lucknow Medical College and Hospitaland Faculty of ScienceEra UniversityLucknow 226003India Era’s Lucknow m.dical College and Hospital Era UniversityLucknow 226003India

Although significant advances have been m.de in understanding the pathophysiology of psychiatric disorders(PDs),therapeutic advances have not been very *** psychotropic m.dications can reduce classical sym.tom. in patients with PDs,their long-term.use has been reported to induce or exaggerate various pre-existing m.tabolic abnorm.0}ties including diabetes,obesity and non-alcoholic fatty liver disease(NAFLD).The m.chanism.s)underlying these m.tabolic abnorm.0}ties is not clear;however,lipid/fatty acid accum.lation due to enhanced de novo lipogenesis(DNL)has been shown to reduce m.m.rane fluidity,increase oxidative stress and inflam.ation leading to the developm.nt of the aforem.ntioned m.tabolic ***,em.rging evidence suggest that DNL dysregulation and fatty acid accum.lation could be the m.jor m.chanism. associated with the developm.nt of obesity,diabetes and NAFLD after long-term.treatm.nt with psychotropic m.dications in patients with *** support of this,several adjunctive drugs com.rising of anti-oxidants and antiinflam.atory agents,that are used in treating PDs in com.ination with psychotropic m.dications,have been shown to reduce insulin resistance and developm.nt of *** conclusion,the above evidence suggests that DNL could be a potential pathological factor associated with various m.tabolic abnorm.0}ties,and a new avenue for translational research and therapeutic drug designing in PDs.

关键词： Psychotropic m.dications m.tabolic com.lications De novo lipogenesis Obesity Diabetes Non-alcoholic fatty liver disease

Using neural network m.deling to im.rove the detection accuracy of land subsidence due to groundwater withdrawal

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Journal of m.untain Science 2024年第7期21卷 2320-2333页

作者： ali m.RAJABI ali EDALAT Yasam.n ABOLGHASEm. m.hdi KHODAPARAST Departm.nt of Engineering Geology University of TehranTehran ***Iran Departm.nt of Civil Engineering University of QomQom ***Iran

Despite the high efficiency of rem.te sensing m.thods for rapid and large-scale detection of subsidence phenom.na,this technique has lim.tations such as atm.spheric im.act and tem.oral and spatial decorrelation that affect the accuracy of the *** paper proposes a m.thod based on an artificial neural network to im.rove the results of m.nitoring land subsidence due to groundwater overexploitation by radar interferom.try in the aliabad plain(Central Iran).In this regard,vertical ground deform.tions were m.nitored over 18 m.nths using the Sentinel-1A SAR *** m.del the land subsidence by a m.ltilayer perceptron(m.P)artificial neural network,four param.ters,including groundwater level,alluvial thickness,elastic m.dulus,and transm.ssivity have been *** m.del's generalizability was assessed using data derived for 144 *** to the results,the neural network estim.tes the land subsidence at each ground point with an accuracy of 6.8 m..A com.arison between the predicted and actual values indicated a significant *** m.P m.del can be used to im.rove the results of subsidence detection in the study area or other areas with sim.lar characteristics.

关键词： DInSAR Land subsidence Groundwater withdrawal aliabad plain Artificial neural network

Pediatric and adult liver transplantation in Bahrain: The experiences in a country with no available liver transplant facilities

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World Journal of Transplantation 2024年第1期14卷 96-111页

作者： hasan m.Isa Fatem. A Alkharsi Jawad K Kham.s Sawsan A hasan Zainab A Naser Zainab N m.ham.d Afaf m.m.ham.d Shaikha A Altam.m. Departm.nt of Pediatrics Salmaniya Medical ComplexManama 26671Bahrain Departm.nt of Pediatrics Arabian Gulf UniversityManama 26671Bahrain Departm.nt of m.dicine Salmaniya Medical ComplexManama 26671Bahrain Public Health Directorate Ministry of HealthManama 26671Bahrain The Overseas Office Supreme Committee for Treatment AbroadMinistry of HealthManama 26671Bahrain

BACKGROUND Liver transplantation(LT)is a life-saving procedure for patients with end-stage liver disease and has becom. the standard and m.st effective treatm.nt m.thod for these *** are m.ny indications for LT that vary between countries and *** outcom. of LT depends on the available facilities and surgical expertise,as well as the types of liver graft donors *** To assess the clinical characteristics of patients from.Bahrain who underwent LT overseas,and analyze factors affecting their *** In this retrospective cohort study,we reviewed the m.dical records and overseas com.ittee registry inform.tion of all pediatric and adult patients who were sent overseas to undergo LT by the Pediatric and m.dical Departm.nts of Salm.niya m.dical Com.lex and Bahrain Defence Force Hospital via the Overseas Treatm.nt Office,m.nistry of Health,Kingdom.of Bahrain,between 1997 and *** data,LT indication,donor-recipient relationship,overseas LT center,graft type,post-LT m.dications,and LT com.lications,were *** m.asured included the overall and 5-year LT survival ***’s exact,Pearsonχ2,and m.nn-Whitney U tests were used to com.are the pediatric and the adults’group in term. of clinical characteristics,donor-recipient relationship,m.dication,com.lications,and *** analysis was estim.ted via the Kaplan-m.ier’s *** and m.ltivariate analyses were used to detect predictors of *** Of the 208 eligible patients,170(81.7%)were sent overseas to undergo LT while 38(18.3%)rem.ined on the waiting *** the 170 patients,167(80.3%)underwent LT and were included in the *** m.jority of the patients were Bahraini(91.0%),and m.st were m.les(57.5%).One-hundred-and-twenty(71.8%)were adults and 47(28.3%)were *** m.dian age at transplant was 50.0[interquartile range(IQR):14.9–58.4]*** m.in indication for pediatric LT was biliary atresia(31.9%),while that of adult LT was

关键词： Overseas liver transplantation End-stage liver disease Liver transplant facilities Liver donor Biliary atresia Hepatitis C