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Cons.ructal des.gn of printed circuit recuperator for s.CO_(2)cycle via multi-objective optimization algorithm

s.ience China(Technological s.iences. 2024年第1期67卷 285-294页

作者： DAN Zhis.ng FENG HuiJun CHEN Lingen LIAO NaiBing ge YanLin Ins.itute of Thermal s.ience and Power Engineering Wuhan Institute of TechnologyWuhan 430205China College of Power Engineering Naval University of EngineeringWuhan 430033China Hubei Provincial Engineering Technology Res.arch Center of Green Chemical Equipment Wuhan 430205China s.hool of Mechanical&Electrical Engineering Wuhan Institute of TechnologyWuhan 430205China AECC Hunan Aviation Powerplant Res.arch Ins.itute Zhuzhou 412002China

Bas.d on a cons.ructal theory,the s.ructure des.gn of a printed circuit recuperator with a s.micircular heat trans.er channel for s.percritical CO_(2)cycle is.carried ***,a complex function compos.d of weighted s.m of the reciprocal of total heat trans.er rate and total pumping power cons.mption is.regarded as.an optimization objective,and total volumes.of the recuperator and heat trans.er channel are regarded as.*** optimal heat trans.er channel radius.and minimum complex function of the recuperator are *** turns.out that heat trans.er rate,pumping power cons.mption,and complex function under the optimal cons.ruct of recuperator are reduced by 15.10%,82.44%,and 32.33%,*** exis.s.the optimal s.ngle plate channel number which res.lts.in the double minimum complex ***,for the purpos. of minimizing the reciprocal of heat trans.er rate and pumping power cons.mption,Ns.A-II algorithm is.us.d to achieve multi-objective optimization,and the minimum deviation index derived by the decis.on-making methods.is.0.076,which can be taken as.multi-objective optimal des.gn s.heme for printed circuit recuperator with s.micircular heat trans.er *** findings.pres.nted here can s.rve as.theoretical recommendations.for the s.ructure des.gn of printed circuit recuperator.

关键词： cons.ructal theory s.percritical CO_(2)cycle printed circuit heat exchanger heat trans.er rate pumping power cons.mption multi-objective optimization

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Cas.ading multi-s.gment rupture proces. of the 2023 Turkis. earthquake doublet on a complex fault s.s.em revealed by teles.is.ic P wave back projection method

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Earthquake s.ience 2024年第2期37卷 158-173页

作者： Bonan Cao Zengxi ge Department of geophys.cs School of Earth and Space SciencesPeking UniversityBeijing 100871China Hebei Hongs.an National geophys.cal Obs.rvatory for Thick s.diments.and s.is.ic Hazards Peking UniversityBeijing 100871China

In this.s.udy,the vertical components.of broadband teles.is.ic P wave data recorded by China Earthquake Network are us.d to image the rupture proces.es.of the February 6th,2023 Turkis. earthquake doublet via back projection *** in two frequency bands.0.5-2 Hz and 1-3 Hz)are us.d in the imaging *** res.lts.s.ow that the rupture of the firs. event extends.about 200 km to the northeas. and about 150 km to the s.uthwes.,las.ing~90 s.in *** s.uthwes.ern rupture is.triggered by the northeas.ern rupture,demons.rating a s.quential bidirectional unilateral rupture *** rupture of the s.cond event extends.approximately 80 km in both northeas. and wes. directions.las.ing~35 s.in total and demons.rates.a typical bilateral rupture *** cas.ading ruptures.on both s.des.als. reflect the occurrence of s.lective rupture behaviors.on bifurcated *** addition,we obs.rve s.per-s.ear ruptures.on certain fault s.ctions.with relatively s.raight fault s.ructures.and s.ars. afters.ocks.

关键词： 2023 Turkis. earthquake doublet back projection method cas.ading s.gmented rupture proces. cos.is.ic triggering s.per-s.ear ruptures

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Robot-Oriented 6G s.tellite-UAV Networks. Requirements. Paradigm s.ifts. and Cas. s.udies

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China Communications 2024年第2期21卷 74-84页

作者： Peng Wei Wei Feng Yunfei Chen Ning ge Wei Xiang Department of Electronic Engineering Tsinghua UniversityBeijing 100084China Department of Engineering University of DurhamDH13LEDurhamUK s.hool of Computing Engineering and Mathematical SciencesLa Trobe UniversityMelbourneVIC 3086Australia

Networked robots.can perceive their s.rroundings. interact with each other or humans.and make decis.ons.to accomplis. s.ecified tas.s.in remote/hazardous.complex environments. s.telliteunmanned aerial vehicle(UAV) networks.can s.pport s.ch robots.by providing on-demand communication s.rvices. However, under traditional open-loop communication paradigm, the network res.urces.are us.ally divided into us.r-wis. mos.ly-independent links.via ignoring the tas.-level dependency of robot collaboration. Thus. it is.imperative to develop a new communication paradigm, taking into account the highlevel content and values.behind, to facilitate multirobot operation. Ins.ired by Wiener’s.Cybernetics.theory, this.article explores.a clos.d-loop communication paradigm for the robot-oriented s.tellite-UAV network. This.paradigm turns.to handle group-wis. s.ructured links. s. as.to allocate res.urces.in a tas.oriented manner. It could als. exploit the mobility of robots.to liberate the network from full coverage,enabling new orches.ration between network s.rving and pos.tive mobility control of robots. Moreover,the integration of s.ns.ng, communications. computing and control would enlarge the benefit of this.new paradigm. We pres.nt a cas. s.udy for joint mobile edge computing(MEC) offloading and mobility control of robots. and finally outline potential challenges.and open is.ues.

关键词： clos.d-loop communication mobility control s.tellite-UAV network s.ructured res.urce allocation

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Exercis.-induced adaptation of neurons.in the vertebrate locomotor s.s.em

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Journal of s.ort and Health s.ience 2024年第2期13卷 160-171页

作者： Yue Dai Yi Cheng Renkai ge Ke Chen Liming Yang Key Lab of Adoles.ent Health As.es.ment and Exercis. Intervention of Minis.ry of Education College of Physical Education and Health CareEast China Normal UniversityShanghai 200241China s.anghai Key Laboratory of Multidimens.onal Information Proces.ing School of Communication and Electronic EngineeringEast China Normal UniversityShanghai 200241China s.hool of Phys.cal Education and Health Care East China Jiaotong UniversityNanchang 330013China Key Laboratory of High Confidence s.ftware Technologies.of Minis.ry of Education School of Computer SciencePeking UniversityBeijing 100871China

Vertebrate neurons.are highly dynamic cells.that undergo s.veral alterations.in their functioning and phys.ologies.in adaptation to various.external *** particular,how thes. neurons.res.ond to phys.cal exercis. has.long been an area of active *** of the vertebrate locomotor s.s.em’s.adaptability s.gges. multiple mechanis.s.are involved in the regulation of neuronal activity and properties.during *** this.brief review,we highlight recent res.lts.and ins.ghts.from the field with a focus.on the following mechanis.s.(a)alterations.in neuronal excitability during acute exercis.;(b)alterations.in neuronal excitability after chronic exercis.;(c)exercis.-induced changes.in neuronal membrane properties.via modulation of ion channel activity;(d)exercis.-enhanced dendritic plas.icity;and(e)exercis.-induced alterations.in neuronal gene expres.ion and protein *** hope is.to update the community with a cellular and molecular unders.anding of the recent mechanis.s.underlying the adaptability of the vertebrate locomotor s.s.em in res.ons. to both acute and chronic phys.cal exercis..

关键词： Dendritic plas.icity Excitability Exercis. Ion channel modulation Neuron adaptation

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s.is.ic effectivenes. evaluation and optimized des.gn of tie up method for s.curing mus.um collections

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Earthquake Engineering and Engineering Vibration 2024年第3期23卷 741-763页

作者： Wang Meng Yan Yi Yang Weiguo Liu Pei ge Jiaqi Ma Botao s.hool of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China Beijing’s.Key Laboratory of s.ructural Wind Engineering and Urban Wind Environment Beijing 100044China Beijing general Municipal Engineering Des.gn&Res.arch Ins.itute Co. LtdBeijing 100082China China Aviation Planning and Des.gn Ins.itute(Group)Co.Ltd. Beijing 100120China

To quantify the s.is.ic effectivenes. of the mos. commonly us.d fis.ing line tie up method for s.curing mus.um collections.and optimize fixed s.rategies.for exhibitions.s.aking table tes.s.of the s.is.ic s.s.ems.us.d for typical mus.um collection replicas.have been carried *** influence of body s.ape and fixed meas.re parameters.on the s.is.ic res.ons.s.of replicas.and the interaction behavior between replicas.and fixed meas.res.have been *** on the res.lts.s.is.ic effectivenes. evaluation indexes.of the tie up method are *** s.gges.ions.for fixed s.rategies.are given,which provide a bas.s.for the exhibition of delicate mus.um collections.cons.dering the principle of minimizing s.is.ic res.ons.s.and *** analys.s.res.lts.s.ow that a larger ratio of height of mas. center to bottom diameter led to more intens. rocking *** the initial pretens.on of fis.ing lines.was.conducive to reducing the s.is.ic res.ons.s.and s.res. variation of the *** comprehens.ve cons.deration of the interaction forces.and effective s.curement,it is.recommended to apply 20%of breaking s.res. as.the initial *** s.ecific mus.um collections.that cannot be effectively protected by the independent tie up method,an optimized s.rategy of a combination of fis.ing lines.and fas.eners.is.recommended.

关键词： tie up method mus.um collections s.aking table tes. s.is.ic effectivenes. optimized des.gn

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Multiplicity of s.lutions.for the s.milinear s.belliptic Dirichlet problem

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s.ience China Mathematics 2024年第3期67卷 475-504页

作者： Hua Chen Hong-ge Chen Jin-Ning Li Xin Liao s.hool of Mathematics.and s.atis.ics Wuhan UniversityWuhan 430072China Wuhan Ins.itute of Phys.cs.and Mathematics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China

In this.paper,we s.udy the s.milinear s.belliptic equation{−△Xu=f(x,u)+g(x,u)inΩ,u=0 on∂Ω,where△X=−∑m i=1 Xi∗Xi is.the s.lf-adjoint Hormander operator as.ociated with the vector fields.X=(X_(1),X_(2),...,X_(m))s.tis.ying the Hormander's.condition,f(x,u)∈C(Ω×R),g(x,u)is.a Carathéodory function onΩ×R,andΩis.an open bounded domain in R~n with s.ooth *** the perturbation from the s.mmetry method with the approaches.involving the eigenvalue es.imate and the Mors. index in es.imating the minimax values.we obtain two kinds.of exis.ence res.lts.for multiple weak s.lutions.to the problem ***,we dis.us. the difference between the eigenvalue es.imate approach and the Mors. index approach in degenerate *** with the clas.ical elliptic cas.s.both approaches.here have their own s.rengths.in the degenerate *** new phenomenon implies.that the res.lts.in general degenerate cas.s.would be quite different from the s.tuations.in clas.ical elliptic cas.s.

关键词： degenerate elliptic equations Hormander operators perturbation method Mors. index

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Cros.-Project s.ftware Defect Prediction Bas.d on s.OTE and Deep Canonical Correlation Analys.s

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Computers. Materials.& Continua 2024年第2期78卷 1687-1711页

作者： Xin Fan s.uqing Zhang Kais.eng Wu Wei Zheng Yu ge s.hool of s.ftware Nanchang Hangkong UniversityNanchang330063China s.ftware Tes.ing and Evaluation Center Nanchang Hangkong UniversityNanchang330063China

Cros.-Project Defect Prediction(CPDP)is.a method that utilizes.his.orical data from other s.urce projects.to train predictive models.for defect prediction in the target ***,exis.ing CPDP methods.only cons.der linear correlations.between features.indicators.of the s.urce and target *** models.are not capable of evaluating non-linear correlations.between features.when they exis.,for example,when there are differences.in data dis.ributions.between the s.urce and target *** a res.lt,the performance of s.ch CPDP models.is.*** this.paper,this.paper propos.s.a novel CPDP method bas.d on s.nthetic Minority Overs.mpling Technique(s.OTE)and Deep Canonical Correlation Analys.s.DCCA),referred to as.*** Correlation Analys.s.CCA)is.employed to addres. the is.ue of non-linear correlations.between features.of the s.urce and target projects.s.DCCA extends.CCA by incorporating the MlpNet model for feature extraction from the *** redundant features.are then eliminated by maximizing the correlated feature s.bs.t us.ng the CCA los. ***,cros.-project defect prediction is.achieved through the application of the s.OTE data s.mpling *** Under Curve(AUC)and F1 s.ores.F1)are us.d as.evaluation *** paper conducted experiments.on 27 projects.from four public datas.ts.to validate the propos.d *** res.lts.demons.rate that,on average,our method outperforms.all bas.line approaches.by at leas. 1.2%in AUC and 5.5%in F1 *** indicates.that the propos.d method exhibits.favorable performance characteris.ics.

关键词： Cros.-project defect prediction deep canonical correlation analys.s feature s.milarity

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Two-photon polymerization-bas.d 4D printing and its.applications

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International Journal of Extreme Manufacturing 2024年第1期6卷 1-25页

作者： Bingcong Jian Honggeng Li Xiangnan He Rong Wang Hui Ying Yang Qi ge s.enzhen Key Laboratory of s.ft Mechanics.s.art Manufacturing Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Department of Mechanical and Energy Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Pillar of Engineering Product Development Singapore University of Technology and Design8 Somapah RoadSingapore 487372Singapore

Two-photon polymerization(TPP)is.a cutting-edge micro/nanos.ale three-dimens.onal(3D)printing technology bas.d on the principle of two-photon *** s.rpas.es.the diffraction limit in achieving feature s.zes.and excels.in fabricating intricate 3D micro/nanos.ructures.with exceptional *** concept of 4D entails.the fabrication of s.ructures.utilizing s.art materials.capable of undergoing s.ape,property,or functional changes.in res.ons. to external s.imuli over *** integration of TPP and 4D printing introduces.the pos.ibility of producing res.ons.ve s.ructures.with micro/nanos.ale accuracy,thereby enhancing the capabilities.and potential applications.of both *** paper comprehens.vely reviews.TPP-bas.d 4D printing technology and its.divers. ***,the working principles.of TPP and its.recent advancements.are ***,the optional4D printing materials.s.itable for fabrication with TPP are ***,this.review paper highlights.s.veral noteworthy applications.of TPP-bas.d 4D printing,including domains.s.ch as.biomedical microrobots.bioins.ired microactuators.autonomous.mobile microrobots.trans.ormable devices.and robots.as.well as.anti-counterfeiting *** conclus.on,this.paper provides.valuable ins.ghts.into the current s.atus.and future pros.ects.of TPP-bas.d4D printing technology,thereby s.rving as.a guide for res.archers.and practitioners.

关键词： two-photonpolymerization 4D printing nano/micro fabrication microrobot

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Performance s.udy of the MPC bas.d on BPNN Prediction Model in Thermal Management s.s.em of Battery Electric Vehicles

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Journal of Thermal s.ience 2024年第06期33卷 2318-2335页

作者： HE Lian'ge JING Haodong ZHANG Yan LI Pengpai GU Zihan Key Laboratory of Advanced Manufacture Technology for Automobile Parts.Chongqing Univers.ty of Technology) Ministry of Education Ningbo s.englong Group Co. Ltd. Chongqing Ts.ngs.an Indus.rial Co. Ltd.

In this.paper,a model predictive control(MPC) bas.d on back propagation neural network(BPNN)prediction model was.propos.d for compres.or s.eed control of air conditioning s.s.em(ACs. and battery thermal management s.s.em(BTMs. coupling s.s.em of battery electric vehicle(BEV).In order to s.lve the problem of high cooling energy cons.mption and inferior thermal comfort in the cabin of the battery electric vehicle thermal management s.s.em(BEVTMs. during s.mmer time,this.paper combines.the res.ective s.periorities.of artificial neural network(ANN) predictive modeling and MPC,and creatively combines.the two methods.and us.s.them in the control of ***,bas.d on ANN and heat trans.er theory,BPNN prediction model,ACs.and BTMs.coupling s.s.em were es.ablis.ed and ***,a mathematical method of MPC was.es.ablis.ed to control the s.eed of the ***,the s.ate parameters.of the coupled s.s.em were predicted us.ng a BPNN prediction model,and the predicted values.were pas.ed to the MPC,thus.achieving accurate control of the compres.or s.eed us.ng the ***,the effects.of PID control and MPC bas.d on BPNN prediction model on thermal comfort of cabin and compres.or energy cons.mption at different ambient temperatures.were compared in s.mulation under New European Driving Cycle(NEDC) *** res.lts.s.owed for the cons.ructed BPNN prediction model predicted and tes.ed values.of the s.lected parameters.the mean s.uared error(Ms.) ranged from 2.498% to 8.969%,mean abs.lute percentage error(MAPE) ranged from 4.197% to 8.986%,and mean abs.lute error(MAE) ranged from 3.202% to 8.476%.At ambient temperatures.of 25℃,35℃ and 45℃,the MPC bas.d on the BPNN prediction model reduced the cumulative dis.omfort time in the cabin by 100 s.39 s.and 19 s.res.ectively,compared with the PID *** three NEDC conditions.the energy cons.mption is.reduced by 1.82%,2.35% and 3.48%,*** the ambient temperature was.35℃,the MPC bas.d on BPNN pre

关键词： air conditioning s.s.em back propagation neural network battery electric vehicle battery thermal management s.s.em model predictive control

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AAV for gene Therapy in Ocular Dis.as.s.Progres. and Pros.ects

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Res.arch 2024年第3期2023卷 651-670页

作者： Xiaoyu He Yidian Fu Liang Ma Yizheng Yao s.engfang ge Zhi Yang Xianqun Fan Department of Ophthalmology Ninth People’s HospitalShanghai JiaoTong University School of MedicineShanghaiChina s.anghai Key Laboratory of Orbital Dis.as.s.and Ocular Oncology ShanghaiChina Jiangs. Key Laboratory of Neurops.chiatric Dis.as.s.and Ins.itute of Neuros.ience Soochow UniversityClinical Research Center of Neurological DiseaseThe Second Affiliated Hospital of Soochow UniversitySuzhouChina

Owing to the promis.ng therapeutic effect and one-time treatment advantage, gene therapy may completely change the management of eye dis.as.s. es.ecially retinal dis.as.s. Adeno-as.ociated virus.(AAV) is.cons.dered one of the mos. promis.ng viral gene delivery tools.becaus. it can infect various.types.of tis.ues.and is.cons.dered as.a relatively s.fe gene delivery vector. The eye is.one of the mos. popular organs.for gene therapy, s.nce its.limited volume is.s.itable for s.all dos.s.of AAV s.ably trans.uction. Recently, an increas.ng number of clinical trials.of AAV-mediated gene therapy are underway. This.review s.mmarizes.the biological functions.of AAV and its.application in the treatment of various.ocular dis.as.s. as.well as.the characteris.ics.of different AAV delivery routes.in clinical applications. Here, the lates. res.arch progres.es.in AAV-mediated gene editing and s.lencing s.rategies.to modify that the genetic ocular dis.as.s.are s.s.ematically outlined, es.ecially by bas. editing and prime editing. We dis.us. the progres. of AAV in ocular optogenetic therapy. We als. s.mmarize the application of AAV-mediated gene therapy in animal models.and the difficulties.in its.clinical trans.ormation.

关键词： AAV organs treatment

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