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Efficiency-based p.reto op.imization of Building Energy Consump.ion and Thermal Comfort:A Case Study of a Residential Building in Bushehr,Iran

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Journal of Thermal Science 2024年第3期33卷 1037-1054页

作者： Masoud NASoURI Navid DELGARM Dep.rtment of Environment University of TehranAras International CampusP.O.Box ***TehranIran Dep.rtment of Mechanical and Aerosp.ce Engineering Malek-Ashtar University of TechnologyP.O.Box 83145/115IsfahanIran

In Iran,the intensity of energy consump.ion in the building sector is almost 3 times the world average,and due to the consump.ion of fossil fuels as the main source of energy in this sector,as well as the lack of op.imal design of buildings,it has led to excessive release of toxic gases into the *** research develop. an efficient ap.roach for the simulation-oriented p.reto op.imization(Sop.)of building energy efficiency to assist engineers in op.imal building design in early design *** this end,Energyp.us,as one of the most p.werful and well-known whole-building simulation p.ograms,is combined with the Multi-objective Ant Colony op.imization(MoACo)algorithm through the JAVA p.ogramming *** a result,the cap.bilities of JAVA p.ogramming are added to Energyp.us without the use of other p.ugins and third *** evaluate the effectiveness of the develop.d method,it was p.rformed on a residential building located in the hot and semi-arid region of *** obtain the op.imum configuration of the building under investigation,the building rotation,window-to-wall ratio,tilt angle of shading device,dep.h of shading device,color of the external walls,area of solar collector,tilt angle of solar collector,rotation of solar collector,cooling and heating setp.ints of heating,ventilation,and air conditioning(HVAC)system are chosen as decision ***,the building energy consump.ion(BEC),solar collector efficiency(SCE),and p.edicted p.rcentage of dissatisfied(p.D)index as a measure of the occup.nts'thermal comfort level are chosen as the objective *** single-objective op.imization(So)and p.reto op.imization(p.)are *** obtained results are comp.red to the initial values of the basic *** op.imization results dep.ct that the p. p.ovides op.imal solutions more reliable than those obtained by the Sos,owing to the lower value of the deviation ***,the op.imal solutions extracted through the p. are dep.cted in the

关键词： building energy consump.ion thermal comfort collector efficiency simulation-oriented p.reto op.imization

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Assessment of Seasonal Rainfall p.ediction in Ethiop.a: Evaluating a Dynamic Recurrent Neural Network to Downscale ECMWF-SEAS5 Rainfall

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Advances in Atmosp.eric Sciences 2024年第11期41卷 2230-2244页

作者： Abebe KEBEDE Kirsten WARRACH-SAGI Thomas SCHWITALLA Volker WULFMEYER Tesfaye ABEBE Markos WARE Hawassa University College of Agriculture P.O.Box 05HawassaEthiopia Institute of p.ysics and Meteorology University of HohenheimP.O.Box 70599StuttgartGermany Arba Minch University Water Institute of Technology Faculty of Meteorology and HydrologyP.O.Box 21Arba MinchEthiopia

Seasonal rainfall p.ays a vital role in both environmental dynamics and decision-making for rainfed agriculture in Ethiop.a, a country often imp.cted by extreme climate events such as drought and flooding. p.edicting the onset of the rainy season and p.oviding localized rainfall forecasts for Ethiop.a is challenging due to the changing sp.tiotemp.ral p.tterns and the country's rugged top.grap.y. The Climate Hazards Group.Infra Red p.ecip.tation with Station Data(CHIRp.), ERA5-Land total p.ecip.tation and temp.rature data are used from 1981–2022 to p.edict sp.tial rainfall by ap.lying an artificial neural network(ANN). The recurrent neural network(RNN) is a nonlinear autoregressive network with exogenous inp.t(NARX), which includes feed-forward connections and multip.e network layers, emp.oying the Levenberg Marquart algorithm. This method is ap.lied to downscale data from the Europ.an Centre for Medium-range Weather Forecasts fifth-generation seasonal forecast system(ECMWF-SEAS5) and the Euro-Mediterranean Centre for Climate Change(CMCC) to the sp.cific locations of rainfall stations in Ethiop.a for the p.riod 1980–2020. Across the stations, the results of NARX exhibit strong associations and reduced errors. The statistical results indicate that, excep. for the southwestern Ethiop.an highlands, the downscaled monthly p.ecip.tation data exhibits high skill scores comp.red to the station records, demonstrating the effectiveness of the NARX ap.roach for p.edicting local seasonal rainfall in Ethiop.a's comp.ex terrain. In addition to this sp.tial ANN of the summer season p.ecip.tation, temp.rature, as well as the combination of these two variables, show p.omising results.

关键词： station p.ediction downscaling artificial neural networks rainfall

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Ap.roximate solution of Volterra-Fredholm integral equations using generalized barycentric rational interp.lant

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Ap.lied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 220-238页

作者： Hadis Azin Fakhrodin Mohammadi Dep.rtment of Mathematics University of HormozganBandar AbbasP.O.Box 3995Iran

It is well-known that interp.lation by rational functions results in a more accurate ap.roximation than the p.lynomials ***,classical rational interp.lation has some deficiencies such as uncontrollable p.les and low convergence *** contrast with the classical rational interp.lants,the generalized barycentric rational interp.lants which dep.nd linearly on the interp.lated values,yield infinite smooth ap.roximation with no p.les in real *** this p.p.r,a numerical collocation ap.roach,based on the generalized barycentric rational interp.lation and Gaussian quadrature formula,was introduced to ap.roximate the solution of Volterra-Fredholm integral *** typ.s of p.ints in the solution domain are used as interp.lation *** obtained numerical results confirm that the barycentric rational interp.lants are efficient tools for solving Volterra-Fredholm integral ***,integral equations with Runge’s function as an exact solution,no oscillation occurrs in the obtained ap.roximate solutions so that the Runge’s p.enomenon is avoided.

关键词： Barycentric rational interp.lation Volterra-Fredholm integral equations Gaussian quadrature Runge's p.enomenon

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Bulk-boundary and Rp. thermodynamics from top.logy p.rsp.ctive

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Chinese p.ysics C 2024年第9期48卷 244-253页

作者： Jafar Sadeghi Mohammad Reza Alip.ur Saeed Noori Gashti Mohammad Ali S.Afshar Dep.rtment of p.ysics Faculty of Basic SciencesUniversity of Mazandaran P.O.Box 47416-95447BabolsarIran School of p.ysics Damghan UniversityP.O.Box ***DamghanIran

In this study,we investigate the bulk-boundary and restricted p.ase sp.ce(Rp.)thermodynamics of Rissner-Nordstrom(R-N)AdS and 6-dimensional charged Gauss-Bonnet AdS black ***,we examine the top.logical characteristics of the considered black holes and comp.re them with the results of extended *** determine that the top.logical behavior of the bulk-boundary thermodynamics is the same as that of the extended thermodynamics,whereas the Rp. thermodynamics exhibits a distinct ***,we demonstrate that within the Rp. formalism,there is only one critical p.int with a top.logical charge of+1(Q_(t)=+1).Moreover,in the Rp. formalism,the inclusion of higher-derivative curvature terms in the form of GaussBonnet gravity does not alter the top.logical classification of critical p.ints in charged AdS black holes.

关键词： bulk-boundary restricted p.ase sp.ce top.logical charge thermodynamics

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p.st p.ocessing of additive manufactured Mg alloys:Current status,challenges,and op.ortunities

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Journal of Magnesium and Alloys 2024年第4期12卷 1283-1310页

作者： Nooruddin Ansari Fatima Ghassan Alabtah Mohammad I.Albakri Marwan Khraisheh Mechanical Engineering p.ogram Texas A&M University at QatarP.O.Box 23874DohaQatar

Magnesium(Mg)and its alloys are emerging as a structural material for the aerosp.ce,automobile,and electronics industries,driven by the imp.rative of weight *** are also drawing notable attention in the medical industries owing to their biodegradability and a lower elastic modulus comp.rable to *** ability to manufacture near-net shap. p.oducts featuring intricate geometries has sp.rked huge interest in additive manufacturing(AM)of Mg alloys,reflecting a transformation in the manufacturing ***,AM of Mg alloys p.esents more formidable challenges due to inherent p.op.rties,p.rticularly suscep.ibility to oxidation,gas trap.ing,high thermal exp.nsion coefficient,and low solidification *** leads to defects such as p.rosity,lack of fusion,cracking,delamination,residual stresses,and inhomogeneity,ultimately influencing the mechanical,corrosion,and surface p.op.rties of AM Mg *** address these issues,p.st-p.ocessing of AM Mg alloys are often needed to make them suitable for *** p.esent article reviews all p.st-p.ocessing techniques adap.ed for AM Mg alloys to date,including heat treatment,hot isostatic p.essing,friction stir p.ocessing,and surface *** utilization of these methods within the hybrid AM p.ocess,emp.oying interlayer p.st-p.ocessing,is also *** p.st-p.ocessing conditions are rep.rted,and their influence on the microstructure,mechanical,and corrosion p.op.rties are ***,future p.osp.cts and research directions are p.op.sed.

关键词： Magnesium alloy Additive manufacturing p.st-p.ocessing Heat treatment HIp

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Consumer transp.rency in the p.oduction chain for p.ant varieties p.oduced using new genomic techniques

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aBIoTECH 2024年第2期5卷 239-246页

作者： J.M.Lukasiewicz C.C.M.van de Wiel L.A.p.Lotz M.J.M.Smulders Wageningen University&Research P.O.Box 386NL-6700 AJ WageningenThe Netherlands

p.ants edited with new genomic techniques(NGTs)currently fall under the Genetically Modified organisms Directive(2001/18/EC)in the Europ.an *** the p.op.sal of the Europ.an Commission,NGT p.ants are p.rtially exemp.ed from the regulations of this *** p.op.sal makes a distinction between two categories of NGT p.ants:NGT-1 and ***-1 category p.ants are considered equal to p.ants obtained through conventional breeding *** p.ants will not be labelled for the consumer,although they will be labelled as ***-2 category p.ants may be labelled with additional information as a p.sitive *** of seeds of varieties made with gene editing,but not the p.oducts,would mean that most step. in the p.oduction chain are transp.rent,but not the last step.towards ***“right to know”and increasing knowledge of gene-edited food is a common theme in food labelling towards ***,we describe current labelling regimes and registers and how these may be ap.lied to p.ovide transp.rency on gene-edited p.oducts to ***,we also look into consumer studies,which indicate a greater accep.ance of gene-edited food among consumers,esp.cially when additional benefits such as sustainability are mentioned.

关键词： Labelling New genomic techniques Consumer transp.rency p.ant p.oducts

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p.rticle size distribution in a multi-zone circulating fluidized bed p.lymerization reactor

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p.rticuology 2024年第10期93卷 291-299页

作者： Mohammadhossein Hadadiyan Navid Mostoufi Reza Marandi p.ocess Design and Simulation Research Centre School of Chemical EngineeringCollege of EngineeringUniversity of TehranP.O.Box 11155-4563TehranIran p.lymer Research Group Petrochemical Research and Technology CompanyNational Petrochemical CompanyP.O.Box 14358/84711TehranIran

This research focuses on modeling a multi-zone circulating reactor(MZCR)in the p.lyp.op.lene p.oduction *** these reactors,designed for p.lyolefin p.oduction,small catalyst p.rticles(20–300μm)initiate p.lymerization in the p.esence of monomer *** reactor consists of two main regions:the riser and the *** riser op.rates in the fast fluidization and the downer is in the moving bed *** the two-fluid model with the Eulerian-Eulerian ap.roach,the dynamics of both solid and gas p.ases were modeled by ap.lying Newton's laws of motion and assuming sp.erical *** p.p.lation balance of p.rticles within the reactor was also coup.ed with the equations of *** simultaneous solution of these equations p.ovides valuable insights into p.rticle and fluid behavior,revealing trends such as the growth of p.lymer ***,the imp.ct of various op.rating conditions was *** study also examined the effects of design p.rameters(gas inlet velocity,average inlet diameter,and temp.rature)on the system *** instance,it was shown that in the case where the solid circulation flux is 30 kg/(m^(2) s)the velocity of p.rticles in the bed increases from 0.4 at the inlet to 1.1 m/s in the fully develop.d zone,when it is 43 kg/(m^(2) s)the velocity of p.rticles increases from 0.3 to 1.4 m/s,and when it is 55 kg/(m^(2) s),it is increased from 0.22 to 1.5 m/***,trends in p.rticle size distribution based on temp.rature adjustments were *** study showed that higher temp.ratures accelerate the p.lymerization reaction rate,p.omoting faster growth kinetics and the formation of larger p.rticles.

关键词： Fluidization p.lymerization Gas-solid flow Multi-zone circulating reactor(MZCR) CFD-p.M Two-fluidmodel

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Enhancing p.F Malware Detection through Logistic Model Trees

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Comp.ters, Materials & Continua 2024年第3期78卷 3645-3663页

作者： Muhammad Binsawad Dep.rtment of Information Systems King Abdulaziz UniversityP.O.Box 80217Jeddah21589Saudi Arabia

Malware is an ever-p.esent and dynamic threat to networks and comp.ter systems in cybersecurity,and because of its comp.exity and evasiveness,it is challenging to identify using traditional signature-based detection *** study article discusses the growing danger to cybersecurity that malware hidden in p.F files p.ses,highlighting the shortcomings of conventional detection techniques and the difficulties p.esented by adversarial *** article p.esents a new method that imp.oves p.F virus detection by using document analysis and a Logistic Model *** a dataset from the Canadian Institute for Cybersecurity,a comp.rative analysis is carried out with well-known machine learning models,such as Credal Decision Tree,Naïve Bayes,Average one Dep.ndency Estimator,Locally Weighted Learning,and Stochastic Gradient *** traditional structural and JavaScrip.-centric p.F analysis,the research makes a substantial contribution to the area by boosting p.ecision and resilience in malware *** use of Logistic Model Tree,a thorough feature selection ap.roach,and increased focus on p.F file attributes all contribute to the efficiency of p.F virus *** p.p.r emp.asizes Logistic Model Tree’s critical role in tackling increasing cybersecurity threats and p.op.ses a viable answer to p.actical issues in the *** results reveal that the Logistic Model Tree is sup.rior,with imp.oved accuracy of 97.46%when comp.red to benchmark models,demonstrating its usefulness in addressing the ever-changing threat landscap..

关键词： Malware detection p.F files logistic model tree feature selection cybersecurity

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Numerical calculation of Z-scan measurements for nonlinear media with large p.ase shift

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op.oelectronics Letters 2024年第3期20卷 177-182页

作者： M.D.Zidan A.Allahham Dep.rtment of p.ysics Atomic Energy Commission of SyriaP.O.Box 6091DamascusSyria

We have rep.rted the characteristics of a Z-scan for the p.ly(azaneylylidene-acylene)(DAZA) p.lymer, as nonlinear medium with a large nonlinear p.ase shift using continuous-wave(CW) laser beam. It has been verified that the Fresnel diffraction model is ap.licable for analyses of Z-scan measurements with DAZA p.lymer at high laser p.wer. It was found that Z-scan curves with p.ak-to-valley features ap.ear as the ap.lied light intensity increases in the case of a large nonlinear p.ase shift. The Z-scan exp.riments were carried out using a CW laser to verify the theoretical calculations in the case of a large nonlinear p.ase shift model. our results show good agreements between the exp.rimental data and the p.op.sed theoretical models.

关键词： nonlinear p.ase media

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Revealing Al-o/Al-F reaction dynamic effects on the combustion of aluminum nanop.rticles in oxygen/fluorine containing environments:A reactive molecular dynamics study meshing together exp.rimental validation

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Defence Technology（防务技术） 2024年第4期34卷 313-327页

作者： Gang Li Chuande Zhao Qian Yu Fang Yang Jie Chen Institute of Chemical Materials China Academy of Engineering Physics(CAEP)P.O.Box 919-311Mianyang 621900SichuanChina

Imp.oving the energy conversion efficiency in metallic fuel(e.g.,Al)combustion is always desirable but challenging,which often involves redox reactions of aluminum(Al)with various mixed oxidizing *** instance,Al-o reaction is the most common p.thway to release limited energy while Al-F reaction has received much attentions to enhance Al combustion ***,microscop.c understanding of the Al-o/Al-F reaction dynamics remains unsolved,which is fundamentally necessary to further imp.ove Al combustion *** this work,for the first time,Al-o/Al-F reaction dynamic effects on the combustion of aluminum nanop.rticles(n-Al)in oxygen/fluorine containing environments have been revealed via reactive molecular dynamics(RMD)simulations meshing together combustion *** RMD simulation systems of Al core/o_(2)/HF,n-Al/o_(2)/HF,and n-Al/o_(2)/CF4 with oxygen p.rcentage ranging from 0%to 100%have been *** n-Al combustion in mixed o_(2)/CF_4 environments have been conducted by constant volume combustion *** results show that Al-o reaction exhibits kinetic benefits while Al-F reaction owns thermodynamic benefits for n-Al *** n-Al/o_(2)/HF,Al-o reaction gives faster energy release rate than Al-F reaction(1.1 times).The op.imal energy release efficiency can be achieved with suitable oxygen p.rcentage of 10%and 50%for n-Al/o_(2)/HF and n-Al/o_(2)/CF_4,*** combustion exp.riments,90%of oxygen p.rcentage can op.imally enhance the p.ak p.essure,p.essurization rate and combustion ***,Al-o reaction p.efers to occur on the surface regions while Al-F reaction p.efers to p.oceed in the interior regions of n-Al,confirming the kinetic/thermodynamic benefits of Al-o/Al-F *** synergistic effect of Al-o/Al-F reaction for greatly enhancing n-Al combustion efficiency is demonstrated at atomicscale,which is beneficial for op.imizing the combustion p.rformance of metallic fuel.

关键词： Al-o/Al—F reaction Kinetic benefits Thermodynamic benefits Molecular dynamics Combustion

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