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Towards im.roving the Qua.i.y of Requirem.nt and Testing Process in a.i.e Software Developm.nt: An Em.irical Study

Com.uters, m.terials and Continua 2024年第3期80卷 3761-3784页

作者： ilays i. Hafeez Y. Alm.shfi N. a.i.S. Hum.yun m. a.i. m. Alwa.i. G. University institute of inform.0}n Technology Pir Mehr Ali Shah Arid Agriculture University Rawalpindi 46000 Pakistan Departm.nt of Software Engineering College of Computer and Information Sciences Jouf University Al Jouf 72388 Saudi Arabia School of Arts Hum.0}ies and Social Sciences University of Roehampton London SW15 5PJ United Kingdom Departm.nt of Com.uter Science College of Computer and Information Sciences Jouf University Al Jouf 72388 Saudi Arabia

Software testing is a critical phase due to m.sconceptions about am.iguities in the requirem.nts during specifica.i.n, which affect the testing process. Therefore, it is difficult to identify all faults in software. As requirem.nt changes continuously, it increases the irrelevancy and redundancy during testing. Due to these challenges; fault detection capa.i.ity decreases and there a.i.es a need to im.rove the testing process, which is based on changes in requirem.nts specifica.i.n. in this research, we have developed a m.del to resolve testing challenges through requirem.nt prioritiza.i.n and prediction in an a.i.e-based environm.nt. The research objective is to identify the m.st relevant and m.a.i.gful requirem.nts through sem.ntic analysis for correct change analysis. Then com.ute the sim.la.i.y of requirem.nts through case-based reasoning, which predicted the requirem.nts for reuse and restricted to error-based requirem.nts. Afterward, the apriori algorithm.m.pped out requirem.nt frequency to select relevant test cases based on frequently reused or not reused test cases to increase the fault detection rate. Furtherm.re, the proposed m.del was evaluated by conducting experim.nts. The results showed that requirem.nt redundancy and irrelevancy im.roved due to sem.ntic analysis, which correctly predicted the requirem.nts, increa.i.g the fault detection rate and resulting in high user sa.i.faction. The predicted requirem.nts are m.pped into test cases, increa.i.g the fault detection rate after changes to achieve higher user sa.i.faction. Therefore, the m.del im.roves the redundancy and irrelevancy of requirem.nts by m.re than 90% com.ared to other clustering m.thods and the analytical hierarchical process, achieving an 80% fault detection rate at an earlier stage. Hence, it provides guidelines for practitioners and researchers in the m.dern era. in the future, we will provide the working prototype of this m.del for proof of concept. Copyright © 2024 The Authors. Publ

关键词： a.i.e software developm.nt case-based reasoning Requirem.nt prediction sem.ntic analysis software testing

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Enhancem.nt of coercivity,perm.a.i.ity,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for m.m.ry and high frequency devices

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Journal of Rare Earths 2024年第6期42卷 1128-1135,I0005页

作者： i.Sardar m.D.Hossain m.S.Sikder m.N.i.Khan m.R.Rahm.n Physics Discipline Khulna UniversityKhulna9208Bangladesh Departm.nt of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Departm.nt ofCom.uter Science and Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh m.terial Science Division Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites have huge applica.i.ns in m. m.ry and high frequency *** the im.rovem.nt of these m.dern devices,the m.gnetic coercivity,perm.a.i.ity,and dielectric properties of a ferrite are the im.ortant *** article focuses on im.roving the m.gnetic coercivity,m.gnetic perm.a.i.ity,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,where x=0.00,0.06,and *** X-ray diffraction(XRD),Fourier transform.infrared spectroscopy(FTiR),field em.ssion scanning electron m.croscopy(FESEm.,energy dispersive X-ray(EDX),vibra.i.g sam.le m.gnetom.ter(VSm.,and an im.edance analyzer were used to characterize the structural,m.gnetic,and dielectric properties of the *** XRD patterns indicate the form.0}n of spinel cubic structure of the sam.les with a secondary peak(EuFeO_(3))for Eu doped *** densities and porosities of the sam.les follow an inverse trend,where the doped sam.les’lattice param.ters are increased with the increm.nt of rare earth Eu *** FTiR analysis also proves the spinel cubic phase of the *** average grain size of the ferrites is obtained via FESEm.im.ges,and it is increased from.121 to 198 *** analysis confirm. that doping of the Eu content also changes other hysteresis loop properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu doped sam.les is greater than that of the m.ther alloy(x=0.00).The EDX study shows that there is no im.urity conta.i.a.i.n in the *** perm.a.i.ity and dielectric m.asurem.nts show an im.roved qua.i.y factor of the Eu-doped sam.les with low m.gnetic and dielectric *** dependent resistivity and im.edance analysis also show the im.roved *** the observed properties of the sam.les,all the investigated ferrites m.ght be strong candidates for potential applica.i.ns in m.m.ry devices,m.gnetic sensors,and high frequency applica.i.ns.

关键词： Ferrites Raree arths Coercivity Perm.a.i.ity EDX Resistivity

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Effectiveness of external prestressing in enhancing the non-ductile hanger failure m.cha.i.m.in reinforced concrete inverted T-beam.

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Frontiers of Structural and Civil Engineering 2024年第7期18卷 1050-1065页

作者： Ahm.d m.ATTA Reda N.BEHiRY m.ham.ed i.HARAZ Structural Engineering Departm.nt Faculty of EngineeringTanta UniversityTanta 33511Egypt Nile Higher institute for Engineering and Technology Mansoura 11001Egypt

Recently,inverted T-beam. have been used in reinforced concrete(RC)bridges to support transverse precast *** T-beam.,contrary to practice with conventional beam.,are loaded on the flanges upper *** loa.i.g configura.i.n causes hanger failure due to the genera.i.n of vertical tensile stresses near the bottom.of the *** key purpose of this study is to investigate the efficiency of vertical external prestressing stainless-steel bars in m.tiga.i.g non-ductile hanger failure in reinforced concrete inverted *** experim.ntal study on six inverted-T beam.,including two un-strengthened specim.ns,was carried *** study showed that the value of the prestressing level had a considerable im.act on the perform.nce of hanger m.cha.i.m.in rela.i.n to crack pattern,ultim.te loads,cracking beha.i.r,load-deflection,strains,and *** experim.ntal results indicated that the suggested m.thod for strengthening inverted T-beam. had efficacy in reducing the seriousness of the non-ductile hanger failure and resulted in a strength increase of up to 53% when com.ared to that of the un-strengthened ***,two analytical m.dels for estim.0}g the hanger capa.i.y and the average crack width of the strengthened RC inverted T-beam. were *** m.dels that were proposed exhibited a high degree of agreem.nt with the experim.ntal results.

关键词： RC bridges inverted T-beam. strengthening hanger failure external prestressing

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Developing a two-decadal tim.-record of rice field m.ps using Landsat-derived m.lti-index im.ge collections with a random.forest classifier:A Google Earth Engine based approach

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inform.0}n Processing in Agriculture 2024年第2期11卷 260-275页

作者： W.Ashane m.Fernando i.P.Senanayake Departm.nt of Nano Science Technology Wayamba University of Sri LankaKuliyapitiya 60200Sri Lanka Dchoolf Engineing CllegeoEngineeringSience and EnionmentThe UniversyewcastleCallaghanW2Austraia

Historic m.ps showing the tem.oral distribution of rice fields are im.ortant for precision agriculture,irriga.i.n optim.sa.i.n,forecasting crop yields,land use m.nagem.nt and form.la.i.g ***,m.pping rice felds using tra.i.ional ground surveys is im.ractical when high cost,tim. and labour requirem.nts are considered,and the availa.i.ity of such detailed records is *** satellite rem.te sensing appears to be a viable solution,conventional segm.nta.i.n and classifica.i.n m.thods with spectral bands are often unable to contrast the distinct characteristics between rice fields and other vegeta.i.n *** this end,we explored a novel,Google Earth Engine(GEE)based m.ltiindex random.forest(RF)classifica.i.n approach to m.p rice fields over two *** im.ges from.2000 to 2020 of two Sri Lankan rice cultiva.i.n districts were extracted from.GEE and a m.lti-index RF classifica.i.n algorithm.was applied to distinguish the rice *** results showed above 80%accuracy for both training and va.i.a.i.n,when com.ared against high spa.i.l resolution Google Earth *** essence,m.lti-index sam.ling and RF together synergised the com.elling classifca.i.n accuracy by effectively capturing vegeta.i.n,water(ponding)and soil characteristics unique to the rice felds using a single-click *** m.ps developed in this study were further com.ared against the m.DiS land cover type product(m.D12Q1)and the corresponding superior sta.i.tics on rice fields dem.nstrated the robustness of the proposed *** work seeking effective index com.ina.i.ns is recom.ended,and this approach can potentially be extended to other crop analyses elsewhere.

关键词： Google Earth Engine(GEE) im.ge classifica.i.n Random.forest m.pping rice fields Tim. series analysis Vegeta.i.n index

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Phase com.osition,conductivity,and sensor properties of cerium.doped indium.oxide

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Nano m.terials Science 2024年第2期6卷 193-200页

作者： m.i.ikim.G.N.Gera.i.ov V.F.Grom.v O.J.ilegbusi L.i.Trakhtenberg N.N.Sem.nov Federal Research Center for Chem.cal Physics of RAS MoscowRussia University of Central Florida OrlandoFLUSA m.scow institute of Physics and Technology(State University) DolgoprudnyMoscow RegionRussia Lom.nosov m.scow State University MoscowRussia

The hydrotherm.l synthesis of in_(2)O_(3)and CeO_(2)–in_(2)O_(3)is investigated as well as the properties of sensor layers based on these *** the synthesis of in_(2)O_(3),interm.diate products in(OH)_(3)and inOOH are form.d,which are the precursors of stable cubic(c-in_(2)O_(3))and m.tastable rhom.ohedral(rh-in_(2)O_(3))phases,respectively.A transition from.c-in_(2)O_(3)to rh-in_(2)O_(3)is observed with the addition of CeO_(2).The introduction of cerium.into rh-in_(2)O_(3)results in a decrease in the sensor response to hydrogen,while it increases in com.osites based on c-in_(2)O_(3).The data on the sensor activity of the com.osites correlate with XPS results in which CeO_(2)causes a decrease in the concentra.i.ns of chem.sorbed oxygen and oxygen vacancies in rh-in_(2)O_(3).The reverse situa.i.n is observed in com.osites based on c-in_(2)O_(3).Com.ared to in_(2)O_(3)and CeO_(2)–in_(2)O_(3)obtained by other m.thods,the synthesized com.osites dem.nstrate m.0}um.response to H_(2)at low tem.eratures by 70–100℃,and have short response tim.(0.2–0.5 s),short recovery tim.(6–7 s),and long-term.sta.i.ity.A m.del is proposed for the dependence of sensitivity on the direction of electron transfer between in_(2)O_(3)and CeO_(2).

关键词： Cerium.oxide indium.oxide Nanocom.osite Hydrotherm.l m.thod Cubic phase Rhom.ohedral phase Sensor response Conductivity Hydrogen Response/recovery tim.

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Vaccina.i.n effect on a stochastic epidem.c m.del with hea.i.g and relapse

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interna.i.nal Journal of Biom.them.0}s 2024年第1期17卷 29-59页

作者： m.m.Abdesla.i.L.Basri m.El Fa.i.i i.Sekkak R.Taki Laboratory of Partial Differential Equa.i.ns Spectral Algebra and Geom.try Departm.nt of m.them.0}s Faculty of Sciences Ibn Tofail UniversityBP 133KénitraMorocco Centre de Recherche en Sante Publique m.ntréal(Québec)H3N 1X9 Canada Departement de Medecine Sociale et Preventive Ecole de SantéPublique de I'Universitéde Montreal 101Avenue du ParcMontréal(Quebec)H3N 1X9Canada EST Sidi Bennour Chouaib Doukkali UniversityEl JadidaMorocco

in this work,we consider a stochastic epidem.c m.del with vaccina.i.n,hea.i.g and *** prove the existence and the uniqueness of the positive *** establish sufficient conditions for the extinction and the persistence in m.an of the stochastic ***,we also establish sufficient conditions for the existence of ergodic sta.i.nary distribution to the m.del,which reveals that the infectious disease will *** graphical illustra.i.ns of the approxim.te solutions of the stochastic epidem.c m.del have been perform.d.

关键词： Stochastic epidem.c m.del with relapse and hea.i.g vaccina.i.n extinction persistence in m.an m.rkov sem.group sta.i.nary distribution

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influence of erbium.on structural,and charged particles,photons,and neutrons shielding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite cera.i.s

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Journal of Rare Earths 2024年第4期42卷 724-732页

作者： m.K.h.Ham.d Nidal Dwaikat m.H.A.m.areb m.i.Sayyed R.m.Ham.d Y.S.m.Alajera.i.m.A.Alm.ssiere Gam.el Saleh Ahm.d Hussein Alom.0}K.A.Ziq Departm.nt of Ba.i. Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Departm.nt of Physics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Departm.nt of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Ba.i. and Applied Scientific Research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Departm.nt of Physics Faculty of ScienceIsra UniversityAmman11622Jordan Departm.nt of Nuclear m.dicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia m.dical im.0}g Departm.nt Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Departm.nt of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Departm.nt of Biom.dical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&m.nerals Regulatory Com.ission Amman11821Jordan

Five perovskite cera.i.s sam.les of Ba_(1-x)Er_(x)SnO_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were synthesized using the conventional solid-state reaction *** prepared sam.les were characterized by X-ray diffraction(XRD),Fourier transform. infrared(FTiR),and UV-Vis *** shielding properties against ionizing ra.i.tion were also *** XRD analysis shows the perovskite cubic structure as the m.jor phase in all *** FTiR reveals a distinctive band around 614-620 cm.(-1) ascribed to the antisym.etric O-Sn-O ***-Vis spectroscopy was used to determ.ne the bandgap according to diffuse reflectance,and the results display a fixed enhancem.nt in the bandgap from.3.2 to 3.3 eV for all ***-ray shielding properties of the synthesized sam.les were experim.ntally m.asured and com.ared with XCOm.com.uta.i.nal *** rela.i.e differences(Δ,%)between experim.ntal and theo retical values are low and fall within the 0.446%-7.10%*** addition of Er leads to the enhanced density,neutron,and gam.a shielding *** contrast,charged particles’shielding param.ters gradually reduce with rising Er *** results suggest that Ba_(1-x)Er_(x)SnO_(3) sam.les can be used in different ra.i.tion shielding applica.i.ns.

关键词： Perovskite Cera.i.s Gam.a ray shielding m.ss stopping power Rare earths

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investiga.i.n of the transform.0}n of orga.i. m.tter of carbonate deposits of the Sem.luksky-m.ndym.ky horizon under hydrotherm.l conditions

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Petroleum 2024年第2期10卷 216-223页

作者： S.m.Petrov a.i.Lakhova E.G.m.iseeva A.G.Sa.i.lina institute of Petroleum Chemistry and Nanotechnologies Kazan National Research Technological University institute of Geology and Oil and Gas Technologies Kazan Federal University

The paper presents the results of studies on the transform.0}n of the orga.i. m.tter of siliceous-clayey carbonate rocks of the Sem.luksko-m.ndym.ky horizon of the Rom.shkino oil field in a hydrotherm.l fluid for an hour（with a water-to-rock ra.i. of 33） at 340℃ and 380℃ and pressu res of 17 and 20 *** a result of hydrotherm.l treatm.nt,at 340℃ and 17 m.a,based on nitrogen porosim.try and electron m.croscopy data,transform.0}ns of rock-form.ng m.nerals in the rock are *** lead to an increase in the volum. and average diam.ter of m.sopores in it and the form.0}n of m.cropores,as well,which im.rove its filtra.i.n *** the sam. tim.,the am.unt of kerogen in the com.osition of the orga.i. m.tter decreases and the yield of the petroleum.hydrocarbon extract increases,in which,according to the SARA analysis,the content of asphaltenes increases and the content of resins,arom.0} and saturated hydrocarbons *** the com.osition of aroa.i. hydrocarbons,the proportion of a lkyltri m.thyl benzenes and dibenzothiophenes increases,phenanthrene hom.logues appear,and in the com.osition of saturated hydrocarbons,the am.unt of iso-structure alkanes decreases rela.i.e to the content of linear *** the tem.erature and pressure of the hydrotherm.l fluid to 380℃ and 20 m.a.i.creases the degree of kerogen conversion from.12.4% to 23.6%.At the sam. tim.,changes occurring in the com.onent com.osition of petroleum.hydrocarbon extracts rem.ins sim.lar to the experim.nts carried out at 340℃ and 17 m.a;the content of naphthalenes decreases,the content of dibenzothiophenes increases and C11-C17,C19-C22alkyltrim.thylbenzenes *** to iR spectroscopy,with increa.i.g tem.erature and pressure of the hydrotherm.l fluid the intensity of the absorption bands of the arom.0} ring,a.i.ha.i. fragm.nts,and oxygen-containing groups increases in resins;the structural-group com.osition of asphaltenes changes little:arom.0}ity and the content of condensed

关键词： Carbonate deposits Orga.i. m.tter Hydrotherm.l fluid m.bile hydrocarbons

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Effect of Ta_(2)O_(5)nanoparticles on bioactivity,com.osition,structure,in vitro and in vivo beha.i.r of PEO coa.i.gs on m.-alloy

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2360-2379页

作者： D.V.m.shtalyar i.m.im.hinetskiy V.V.Kashepa K.V.Nadaraia m.A.Piatkova a.i.Pleshkova K.A.Fom.nko A.Yu.Ustinov S.L.Sinebryukhov S.V.Gnedenkov institute of Chem.stry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal University Vladivostok690950Russia Regional Clinical Derm.tovenerological Dispensary Vladivostok690033Russia

The present study investigates the physical and chem.cal characteristics,beha.i.r in vitro and in vivo,and biocom.a.i.ility of coa.i.gs containing Ta_(2)O_(5),which are obtained by plasm. electrolytic oxida.i.n(PEO)on m.8 m.gnesium.*** obtained coa.i.gs dem.nstrate in vivo biocom.a.i.ility and in vitro *** to the base PEO coa.i.g,the layers containing Ta_(2)O_(5)fa.i.itate the developm.nt of apa.i.e in sim.lated body fluid,suggesting that the inclusion of nanoparticles im.roves bioactivity of the *** was found that incorpora.i.n of Ta_(2)O_(5)nanoparticles increases roughness and porosity of the form.d layers by increa.i.g particle concentra.i.n in electrolytes for the PEO process contributing to sufficient soft tissue ingrowth in *** on in vivo studies,these coa.i.gs also provide favorable tissue response and m.nim.l inflam.atory reaction in com.a.i.on with the bare m.gnesium.alloy due to protection of living tissues from.deleterious corrosion events of m.gnesium.im.lant such as local alka.i.a.i.n and intense hydrogen *** results obtained in the present study concluded biocom.a.i.ility,tissue integra.i.n of the PEO coa.i.gs containing Ta_(2)O_(5)nanoparticles m.0}g them.a prom.sing protective layer for biodegradable m.gnesium.im.lants.

关键词： Plasm. electrolytic oxida.i.n Bioactive coa.i.gs Tantalum.pentoxide Sim.lated body fluid(SBF) Apa.i.e form.0}n Histology

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Antibacterial HA-coa.i.gs on bioresorbable m. alloy

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.m.shtalyar m.A.Piatkova a.i.Pleshkova.i.m.im.hinetskiy m.S.Gera.i.enko E.A.Belov V.V.Kum.iko D.N.Kozyrev K.A.Fom.nko V.V.m.stovaya B.R.Torpanov A.R.Biktim.rov i.S.Osm.shko S.L.Sinebryukhov S.V.Gnedenkov institute of Chem.stry FEB RAS 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal University 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirm.nsky Na.i.nal Scientific Center of m.0}e Biology FEB RAS 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Derm.tovenerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia Nm.C“Treatm.nt and Reha.i.ita.i.n Center” 3 Ivankovskoe highwayMoscow 125367Russia

in this study,a calcium.phosphate coa.i.g was form.d on a m.-m.-Ce alloy by the plasm. electrolytic oxida.i.n(PEO).The antibiotic vancom.cin,widely used in the treatm.nt of infections caused by Staphylococcus aureus(***),was im.regnated into the *** with vancom.cin showed high bactericidal activity against *** m.cha.i.al and electrochem.cal properties of the form.d coa.i.gs were studied,as well as in vitro cytotoxicity tests and in vivo tests on m.ture m.le rats were *** to SEm.EDS,XRD and XPS data,coa.i.gs had a developed m.rphology and contained hydroxyapa.i.e,which indicates high *** analysis of roughness of coa.i.gs without and with vancom.cin did not reveal any differences,confirm.ng the high roughness of the *** electrochem.cal tests,an increase in corrosion resistance by m.re than two tim.s after the applica.i.n of PEO coa.i.gs was *** to the results of an in vivo study,after 28 days of the im.lanta.i.n of sam.les with calcium.phosphate PEO coa.i.g and vancom.cin,no signs of inflam.a.i.n were observed,while an inflam.atory reaction developed in the area of im.lanta.i.n of bare alloy,followed by *** release tests from.the coa.i.gs show a sharp decrease in the concentra.i.n of the released antibiotic on day 7 and then a gradual decrease until day *** the experim.nt,no significant devia.i.ns in the condition and beha.i.r of the a.i.als were observed;clinical tests did not reveal a system.c toxic reaction.

关键词： Bioactive coa.i.gs Biocom.a.i.ility m. alloy Plasm. electrolytic oxida.i.n Hydroxyapa.i.e Vancom.cin

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