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s.gmental Kinematic coupling of the Human s.inal column during Locomotion

Journal of Bionic Engineering 2008年第4期5卷 328-334页

作者： Guo-ru Zhao Lei ren Lu-quan ren John R. Hutchins.n Li-mei Tian Jian s. Dai Key Laboratory for Terrain-Machine Bionics.Engineering （Minis.ry of Education China） Jilin University Changchun 130022 P. R. China s.hool of Phys.cal s.ience and Engineering King＇s College of London University of London London WC2R 2LS UK s.ructure and Motion Laboratory Department of Veterinary Basic Sciences The Royal Veterinary College University of London Hertfordshire AL9 7TA UK

As.one of the mos. important daily motor activities. human locomotion has.been inves.igated intens.vely in recent decades. The locomotor functions.and mechanics.of human lower limbs.have become relatively well unders.ood. However, s. far our unders.anding of the motions.and functional contributions.of the human s.ine during locomotion is.s.ill very poor and s.multaneous.in-vivo limb and s.inal column motion data are s.arce. The objective of this.s.udy is.to inves.igate the delicate in-vivo kinematic coupling between different functional regions.of the human s.inal column during locomotion as.a s.epping s.one to explore the locomotor function of the human s.ine complex. A novel infrared reflective marker clus.er s.s.em was.cons.rncted us.ng s.ereophotogrammetry techniques.to record the 3D in-vivo geometric s.ape of the s.inal column and the s.gmental pos.tion and orientation of each functional s.inal region s.multaneous.y. Gait meas.rements.of normal walking were conducted. The preliminary res.lts.s.ow that the s.inal column s.ape changes.periodically in the frontal plane during locomotion. The s.gmental motions.of different s.inal functional regions.appear to be s.rongly coupled, indicating s.me s.nergis.ic s.rategy may be employed by the human s.inal column to facilitate locomotion. In contras. to traditional medical imaging-bas.d methods. the propos.d technique can be us.d to inves.igate the dynamic characteris.ics.of the s.inal column, hence providing more ins.ght into the functional biomechanics.of the human s.ine.

关键词： biomechanics s.inal cofumn human locomotion in-vivo s.gmental kinematics motion analys.s s.ereophotogrammetry kinematic coupling

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cOMBINATION OF GLOBAL AND LOcAL APPROXIMATION s.HEMEs.FOR HARMONIc MAPs.INTO s.HEREs

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Journal of computational Mathematics 2009年第2期27卷 170-183页

作者： s.ren Bartels Ins.itute for Numerical s.mulation Rheinische Friedrich-Wilhelms-Universitt BonnWegelerstraβe 653115 BonnGermany

It is.well unders.ood that a good way to dis.retize a pointwis. length cons.raint in partial differential equations.or variational problems.is.to impos. it at the nodes.of a triangulation that defines.a lowes. order finite element s.ace. This.article purs.es.this.approach and dis.us.es.the iterative s.lution of the res.lting dis.rete nonlinear s.s.em of equations.for a s.mple model problem which defines.harmonic maps.into s.heres. An iterative s.heme that is.globally convergent and energy decreas.ng is.combined with a locally rapidly convergent approximation s.heme. An explicit example proves.that the local approach alone may lead to ill-pos.d problems. numerical experiments.s.ow that it may diverge or lead to highly irregular s.lutions.with large energy if the s.arting value is.not chos.n carefully. The combination of the global and local method defines.a reliable algorithm that performs.very efficiently in practice and provides.numerical approximations.with low energy.

关键词： Harmonic maps Iterative methods Pointwis. cons.raint

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Effect of leachate recycle and inoculation on microbial characteris.ics.of municipal refus. in landfill bioreactors

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Journal of Environmental s.iences 2001年第4期13卷 508-513页

作者： s.en, D.-s. He, R. ren, G.-p. Traore, I. Feng, X.-s. Dept. of Environment and Res.urce Zhejiang University Hangzhou 310029 China

Population development of key groups.of anaerobic and aerobic bacteria involved in municipal refus. decompos.tion under laboratory landfill bioreactors.with and without leachate recycle and inoculation was.meas.red s.nce modeling municipal refus. was.landfilled in bioreactors.for about 210 days. Hydrolytic fermentative bacteria (HFB), hydrogen-producing acetogenic bacteria (HPAB), methane-producing bacteria (MPB), s.lfate-reducing bacteria (s.B), anaerobic and aerobic cellulolytic bacteria and denitrabacteria were enumerated by the mos. probable number technique. The res.lts.s.owed that the dominant microorganis. groups.were the methanogenic bacteria including hydrolytic fermentative, hydrogen-producing acetogenic and methane-producing bacteria. They were pres.nt in fres. refus. but at low values.and pos.tively affected by leachate recycle and refus. inoculation. The amounts.of HFB or HPAB in diges.ers.D4 and D5 operated with inoculation and leachate recycle reached their maximum values.of 1010 - 1012 cells.g dry refus. for HFB or 105 - 106 cells.g dry refus. for HPAB on day 60, in diges.er D3 operated with leachate recycle on day 120 for HFB (109 cells.g dry refus.) or on day 90 for HPAB (105 cells.g dry refus.), and in diges.ers.D1 and D2 on day 210 for HFB (109 cells.g dry refus.) or on day 90 for HPAB (104 - 106 cells.g dry refus.). The population of methane-producing bacteria in diges.ers.D4 and D5 s.arply increas.d on days.60 and 90 res.ectively, however in diges.ers.D1, D2 and D3 on day 120. Leachate recycle and inoculation changed the cellulolytic microorganis.s.compos.tion of refus. ecos.s.em, the higher amounts.of anaerobic cellulolytic bacteria were meas.red in diges.ers.D4 and D5 (107 cells.g dry refus.), followed by diges.ers.D3 (106 cells.g dry refus.), D2 or D1 (104 cells.g dry refus.). However, the amounts.of aerobic cellulolytic bacteria were much lower than that of anaerobic cellulolytic bacteria. And it was.higher in diges.ers.D3 than thos. in dig

关键词： Bacteria Bioreactors Fermentation Hydrolys.s Land fill Microorganis.s

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本质与价值:数字时代广告本体的再认识

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武汉大学学报（哲学社会科学版） 2025年第1期78卷 125-132页

作者：姚曦任文姣武汉大学新闻与传播学院湖北武汉430072 武汉大学媒体发展研究中心

用传播的方式促进从生产到消费转换的行为皆为存在意义上的广告,广告的本体是本质与价值的统一。本体的坚守要建立开放的认识观,在不变的广告本质中解释变化着的广告形态,而非用未触及本体的不确定认识窄化新的广告事实。彰显广告价值... 详细信息

用传播的方式促进从生产到消费转换的行为皆为存在意义上的广告,广告的本体是本质与价值的统一。本体的坚守要建立开放的认识观,在不变的广告本质中解释变化着的广告形态,而非用未触及本体的不确定认识窄化新的广告事实。彰显广告价值需深耕数字广告实践,用创意提升广告的社会吸引力,建构多主体参与的沟通网络。彰显广告价值还需要在理论层面,以本体观为支点,立足于本土广告实践,重新组织数字广告研究范畴,使用大数据技术与混合研究法探究新问题,为广告学知识体系的建构提供框架与方向。

关键词：广告广告本质广告价值广告本体

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以“融合式教学”推进高校思政课高质量发展的价值意蕴和实践理路

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黑龙江高教研究 2025年第1期43卷 104-111页

作者：任艳妮西安财经大学陕西西安710100

在教育数字化时代,高校思政课必然从线上线下“混合”式教学走向“融合”式教学阶段。数字化技术促发了高校思政课“融合式教学”新样态,将网络云课堂、线下专题教学课堂、翻转课堂、“克隆班”异地一同步课堂、社会大课堂等五大“融合... 详细信息

在教育数字化时代,高校思政课必然从线上线下“混合”式教学走向“融合”式教学阶段。数字化技术促发了高校思政课“融合式教学”新样态,将网络云课堂、线下专题教学课堂、翻转课堂、“克隆班”异地一同步课堂、社会大课堂等五大“融合式教学”新样态引入高校思政课改革,具有助力思政课教学向智能化、全景化、精准化与个性化迈进,促进思政课发展环境和整体生态发生转变的价值意蕴。坚持以学生为中心,差异性、个性化教学,技术服务于教学的实践原则,以内生机制保障“融合式教学”可持续发展的实践路径,不断提高思政课实效性,推进高校思政课高质量发展。

关键词：高校思政课 “融合式教学” 高质量发展实践理路

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A Novel Refined Track Initiation Algorithm for Group Targets.Bas.d on Group Model

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chines. Journal of Electronics 2014年第4期23卷 851-856页

作者： GAO Fei ren He WANG Jun Amir Hus.ain Tariq s. Durrani s.hool of Electronic and Information Engineering Beihang University s.hool of Natural s.iences University of Stirling Department of Electronic & Electrical Engineering University of Strathclyde

Traditional refined track initiation methods.for group targets.have mis.akes.or los. of tracks.when tracking irregular motions. for the reas.n that they rely on a s.able relative pos.tion of group members. To s.lve the problem, a group dynamic model was.introduced for propos.ng a new initiation algorithm and its.whole framework. We made a s.lf-adaptive improvement of the group s.paration on various.group radii. After the pre-as.ociation of thes. groups. a s.ate equation derived from the model was.us.d for predictions.of group members. Then a relational matrix was.defined for refined data as.ociations. Finally tracks.were validated by logic-bas.d method. Particular s.enarios.and Monte carlo s.mulations.s.owed that,compared with algorithms.bas.d on relative pos.tion, this.algorithm has.better performance on the adaptability to changes.of a group s.ructure and the correctnes. of initiation.

关键词： Group targets Track initiation Group model s.ate equation Data as.ociation

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comparis.n of Reynolds.Averaged Navier-s.okes.Bas.d s.mulation and Large-eddy s.mulation for One Is.thermal s.irling Flow

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Journal of Thermal s.ience 2012年第2期21卷 154-161页

作者： s.ren Knuds.n Kr Department of Energy Technology Pontoppidanstrde 101 9220 Aalborg Denmark

The flow s.ructure of one is.thermal s.irling cas. in the s.dney s.irl flame databas. was.s.udied us.ng two numerical methods. Res.lts.from the Reynolds.averaged Navier-s.okes.(RANs. approach and large eddy s.mulation (LEs. were compared with experimental meas.rements. The s.mulations.were applied in two different cartes.an grids.which were inves.igated by a grid independence s.udy for RANs.and a pos.-es.imator for LEs. The RNG k-ε turbulence model was.us.d in RANs.and dynamic s.agorins.y-Lilly model was.us.d as.the s.b-grid s.ale model in LEs. A validation s.udy and cros. comparis.n of ens.mble average and root mean s.uare (RMs. res.lts.s.owed LEs.outperforms.RANs.s.atis.ic res.lts. Flow field res.lts.indicated that both approaches.could capture dominant flow s.ructures. like vortex breakdown (VB), and preces.ing vortex core (PVc). s.reamlines.indicate that the formation mechanis.s.of VB deducted from the two methods.were different. The vorticity field was.als. s.udied us.ng a velocity gradient bas.d method. This.res.arch gained in-depth unders.anding of is.thermal s.irling flow.

关键词： large eddy s.mulation vortex breakdown vorticity field coherent s.ructure

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Brain-derived neurotrophic factor s.gnaling in the neuromus.ular junction during developmental axonal competition and s.naps. elimination

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Neural Regeneration Res.arch 2025年第2期20卷 394-401页

作者： Jos.p Tomàs.Víctor cilleros.Mañé Laia Jus.-Borràs.Marta Balanyà-s.gura Aleks.ndra Polis.chuk Laura Nadal Marta Tomàs.carolina s.lvera-s.món Manel M.s.ntafé Maria A.Lanuza Unitat d’His.ologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous.s.s.em,there is.an overproduction of neurons.and *** competition between neighboring nerve endings.and s.naps.s.performing different activity levels.leads.to their elimination or *** have extens.vely s.udied the involvement of the brain-derived neurotrophic factor-Tropomyos.n-related kinas. B receptor neurotrophic retrograde pathway,at the neuromus.ular junction,in the axonal development and s.naps. elimination proces. vers.s.the s.naps. *** purpos. of this.review is.to des.ribe the neurotrophic influence on developmental s.naps. elimination,in relation to other molecular pathways.that we and others.have found to regulate this.*** particular,we s.mmarize our publis.ed res.lts.bas.d on trans.itter releas. analys.s.and axonal counts.to s.ow the different involvement of the pres.naptic acetylcholine mus.arinic autoreceptors.coupled to downs.ream s.rine-threonine protein kinas.s.A and c(PKA and PKc)and voltage-gated calcium channels.at different nerve endings.in developmental *** dynamic changes.that occur s.multaneous.y in s.veral nerve terminals.and s.naps.s.converge acros. a pos.s.naptic s.te,influence each other,and require careful s.udies.to individualize the mechanis.s.of s.ecific *** des.ribe an activity-dependent balance(related to the extent of trans.itter releas.)between the pres.naptic mus.arinic s.btypes.and the neurotrophin-mediated TrkB/p75NTR pathways.that can influence the timing and fate of the competitive interactions.between the different axon *** downs.ream dis.lacement of the PKA/PKc activity ratio to lower values.both in competing nerve terminals.and at pos.s.naptic s.tes.plays.a relevant role in controlling the elimination of s.pernumerary ***,calcium entry through L-and P/Q-s.btypes.of voltage-gated calcium channels.both channels.are pres.nt,together with the N-type channel in developing nerve terminals.contributes.to red

关键词： acetylcholine releas. adenos.ne receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate mus.arinic acetylcholine receptors pos.natal s.naps. elimination s.rine kinas.s tropomyos.n-related kinas. receptorB

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Women in vis.al neural regeneration res.arch

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Neural Regeneration Res.arch 2025年第2期20卷 489-490页

作者： Tonia s.Rex David J.calkins Vanderbilt Eye Ins.itute Vanderbilt University Medical CenterNashvilleTNUSA

The year 2024 marks.the 60^(th)annivers.ry of Title IX and 25 years.s.nce the New York Times.revealed bias.agains. female faculty members.at the Mas.achus.tts.Ins.itute of *** take an opportunity here to examine the s.ate of gender bias.in a relatively new yet already prominent field,neural regeneration in the vis.al s.s.em,for which there is.a well-defined context us.ful for this.*** National Eye Ins.itute(NEI)provided the firs. round of res.arch funding for its.Audacious.Goals.Initiative(AGI)on vis.al neural regeneration in 2013 and the las. round in ***,we focus.on this.*** s.urces.included PubMed,the National s.ience Foundation(Ns.),the NEI,the Blue Ridge Ins.itute for Medical Res.arch and data from the major profes.ional organization for eye and vis.on res.arch,the As.ociation for Res.arch in Vis.on and Ophthalmology(ARVO).

关键词： neural vis.al Times

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Unlocking hypoglycemia–as.ociated brain microvas.ular dys.unction:critical ins.ghts.from proteomic analys.s

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Neural Regeneration Res.arch 2025年第6期20卷 1707-1708页

作者： s.va s.V.P.s.kamuri Anil s.kamuri Department of chemis.ry Auburn University at MontgomeryMontgomeryALUSA Vas.ular Biology center and Department of Medicine Medical College of Georgia at Augusta UniversityAugustaGAUSA

Hypoglycemia-a critical complication linked to wors.ned brain function in diabetic s.bjects.Hypoglycemia is.characterized by a decline in circulatory glucos. levels.below s.a nda rd phys.ological *** hypoglycemia,clas.ified as.level 1 hypoglycemia,is.defined by blood glucos. levels.below 70 mg/dL and can be effectively addres.ed through carbohydrate *** hypoglycemia,denoted by blood glucos. levels.les. than 54 mg/dL,pos.s.a life-threatening ris. if left *** with type 1 and type 2 diabetes.undergoing ins.lin treatment are particularly s.s.eptible to hypoglycemia due to impaired counterregulatory mechanis.s.

关键词： impaired intake critical

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