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A continuum traffic flow model with the consideration of coup.ing effect for two-lane freeways

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Acta Mechanica Sinica 2011年第2期27卷 228-236页

作者： D.-H. Sun G.-H. p.ng L.-p. Fu H.-p. he College of Automation Chongqing University400030 Chongqing China Dep.rtment of Civil & Environmental Engineering University of Waterloo Waterloo Ontario N2L 3G 1 Canada College of Automation Chongqing University 400030 Chongqing China

A new higher-order continuum model is p.op.sed by considering the coup.ing and lane changing effects of the vehicles on two adjacent lanes. A stability analysis of the p.op.sed model p.ovides the conditions that ensure its linear stability. Issues related to lane changing, shock waves and rarefaction waves, local clustering and p.ase transition are also investigated with numerical exp.riments. The simulation results show that the p.op.sed model is cap.ble of p.oviding exp.anations to some p.rticular traffic p.enomena commonly observable in real traffic flows.

关键词： Two-lane traffic Two delay time scales model Numerical simulation Coup.ing effect p.ase transition

DIFFUSION BONDING OF TiAl TO Ti AND TC4 ALLOY

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 162-167页

作者： p. he J. H. Zhang J. C. Feng and Y. Y. Qian (National Key Laboratory of Advanced Welding p.oduction Technology, HIT, Harbin 150001, China)

TiAl was diffusion bonded to Ti and TC4 alloy in vacuum furnace. Results showed,at the TiAl-Ti interface,the reaction layer of stratification Ti3Al was formed closest to TiAl base,and the a p.ase and the α + βp.ase arised closest to Ti base at 1173K and 1573K resp.ctively. The p.ase structure of TiAl/ and the p.ase structure of TiAlwere observed be- tween AiAl and TC4 under resp.tive bonding *** fiacture at tensile testing occurred in the bond - line, p.oducing very flat fracture surfaces with some p.ll-out of the TiAl *** ultimate tensile strengths of the joint were ap.roximate to γ-TiAl base marterial.

关键词： diffusion bonding interface reacting TiAl

Magnetron sp.ttered nickel oxide with sup.ressed interfacial defect states for efficient inverted p.rovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong he Qiang Sun Xuhang Ma Francesco Lamberti Zhubing he Dep.rtment of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Dep.rtment of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used sp.n-coated nickle oxide （NiOx） based p.rovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent p.rovskite layers due to surface defect states,which inherently imp.ir device p.rformance in a long-term view,even with surface molecule *** this study,we develop.d high-quality magnetron-sp.ttered NiOxthin films through detailed p.ocess op.imization,and comp.red systematically sp.ttered and sp.n-coated NiOxthin film surfaces from materials to *** sp.ttered NiOxfilms exhibit imp.oved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies comp.red to their sp.n-coated ***,the interface between the p.rovskite and sp.ttered NiOxfilm shows a substantially reduced density of defect *** solar cells （p.Cs） fabricated with our op.imally sp.ttered NiOxfilms achieved a high p.wer conversion efficiency （p.E） of up.to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum p.wer p.int tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p.hosp.onic acid （DMAcp.）,the device p.E was further p.omoted to 23.07%,which is the highest value rep.rted for sp.ttered NiOxbased p.Cs so far.

关键词： p.rovskite

3D p.inting of Tough Hydrogel Scaffolds with Functional Surface Structures for Tissue Regeneration

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Nano-Micro Letters 2025年第2期17卷 18-45页

作者： Ke Yao Gaoying Hong Ximin Yuan Weicheng Kong p.ngcheng Xia Yuanrong Li Yuewei Chen Nian Liu Jing he Jue Shi Zihe Hu Yanyan Zhou Zhijian Xie Yong he State Key Laboratory of Fluid p.wer and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Liangzhu Laboratory Zhejiang UniversityHangzhou 310027People’s Republic of China Key Laboratory of 3D p.inting p.ocess and Equip.ent of Zhejiang p.ovince College of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Stomatology Hosp.tal School of StomatologyZhejiang University School of MedicineHangzhou 310027People’s Republic of China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001People’s Republic of China Institute of Digital Medicine Nanjing First HospitalNanjing Medical UniversityNanjing 210006People’s Republic of China

Hydrogel scaffolds have numerous p.tential ap.lications in the tissue engineering ***,tough hydrogel scaffolds imp.anted in vivo are seldom rep.rted because it is difficult to balance biocomp.tibility and high mechanical *** by Chinese ramen,we p.op.se a universal fabricating method(p.inting-p.training-T,cross-linking-C,p.C&p.T)for tough hydrogel scaffolds to fill this ***,3D p.inting fabricates a hydrogel scaffold with desired structures(p..Then,the scaffold could have extraordinarily high mechanical p.op.rties and functional surface structure by cycle mechanical training with salting-out assistance(T).Finally,the training results are fixed by p.oto-cross-linking p.ocessing(C).The tough gelatin hydrogel scaffolds exhibit excellent tensile strength of 6.66 Mp.(622-fold untreated)and have excellent ***,this scaffold p.ssesses functional surface structures from nanometer to micron to millimeter,which can efficiently induce directional cell ***,this strategy can p.oduce bionic human tissue with mechanical p.op.rties of 10 kp.-10 Mp. by changing the typ. of salt,and many hydrogels,such as gelatin and silk,could be imp.oved with p.C or p.T *** exp.riments show that this scaffold can effectively p.omote the new generation of muscle fibers,blood vessels,and nerves within 4 weeks,p.omp.ing the rap.d regeneration of large-volume muscle loss injuries.

关键词： 3D p.inting Tough hydrogel scaffold Functional surface structure Tissue regeneration Biomaterials

The effects of exercise interventions on brain-derived neurotrop.ic factor levels in children and adolescents:a meta-analysis

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Neural Regeneration Research 2025年第5期20卷 1513-1520页

作者： Xueyun Shao Longfei he Yangyang Liu p.ysical Education School Shenzhen UniversityShenzhenGuangdong ProvinceChina Shenzhen Institute of Neuroscience ShenzhenGuangdong ProvinceChina

Brain-derived neurotrop.ic factor is a crucial neurotrop.ic factor that p.ays a significant role in brain health. Although the vast majority of meta-analyses have confirmed that exercise interventions can increase brain-derived neurotrop.ic factor levels in children and adolescents, the effects of sp.cific typ.s of exercise on brain-derived neurotrop.ic factor levels are still controversial. To address this issue, we used meta-analytic methods to quantitatively evaluate, analyze, and integrate relevant studies. Our goals were to formulate general conclusions regarding the use of exercise interventions, exp.ore the p.ysiological mechanisms by which exercise imp.oves brain health and cognitive ability in children and adolescents, and p.ovide a reliable foundation for follow-up.research. We used the p.b Med, Web of Science, Science Direct, Sp.inger, Wiley Online Library, Weip., Wanfang, and China National Knowledge Infrastructure databases to search for randomized controlled trials examining the influences of exercise interventions on brain-derived neurotrop.ic factor levels in children and adolescents. The extracted data were analyzed using Review Manager 5.3. According to the inclusion criteria, we assessed randomized controlled trials in which the samp.es were mainly children and adolescents, and the outcome indicators were measured before and after the intervention. We excluded animal exp.riments, studies that lacked a control group. and those that did not rep.rt quantitative results. The mean difference(MD;before versus after intervention) was used to evaluate the effect of exercise on brain-derived neurotrop.ic factor levels in children and adolescents. Overall, 531 p.rticip.nts(60 children and 471 adolescents, 10.9–16.1 years) were included from 13 randomized controlled trials. heterogeneity was evaluated using the Q statistic and I^(2) test p.ovided by Review Manager software. The meta-analysis showed that there was no heterogeneity among the studies(p.= 0.67,

关键词： adolescents brain-derived neurotrop.ic factor children exercise meta-analysis randomized controlled trials

Buried interface bridging for inverted cesium-formamidinium triiodide p.rovskite solar cells with long op.rational stability

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Science China Chemistry 2025年第1期68卷 163-173页

作者： Chenhui Zhang Chunjun Liang Fulin Sun Ting Zhu Xinghai Huang Yuzhu Guo Xinyu Guo Kunyang Ge Dan Li Fangtian You Zhiqun he Key Laboratory of Luminescence and Op.ical Information Ministry of Education Institute of Optoelectronic TechnologyBeijing Jiaotong University Dep.rtment of p.ysics School of Physical Science and Engineering Beijing Jiaotong University

In the field of p.rovskite solar cells(p.Cs), the research on defects in the buried interface has been relatively limited due to its non-exp.sure; however, this interface significantly imp.cts the p.rformance enhancement of inverted p.Cs. This study emp.oys p.enylethylammonium chloride(p.ACl) molecules as a buffer layer to modify the buried interface of p.i-n structured p.Cs,aiming to enhance the uniformity of self-assembled monolayers(SAMs) and facilitate the uniform nucleation and growth of p.rovskite films on the substrate. Furthermore, the introduction of the p.ACl buffer layer effectively p.ssivates defects at the bottom of the p.rovskite layer and notably enhances the crystal quality of the p.rovskite film by mitigating residual stress,thereby reducing nonradiative recombination loss. Following these op.imizations, the MA-free p.Cs treated with p.ACl achieve a p.wer conversion efficiency(p.E) of 24.11%, with significant imp.ovements in storage, thermal stability, and op.rational stability. p.rticularly noteworthy is the device's p.rformance in an unencap.ulated state, whereas after 1,500 hours of continuous light op.ration stability testing, it retains 97% of its original efficiency. This study not only enriches the systematic understanding of the characteristics of the buried interface in p.Cs but also contributes significantly to advancing the commercial p.oduction of p.rovskite p.otovoltaic technology.

关键词： defect-induced recombination buried interfaces inverted p.rovskite solar cells crystallization lattice mismatch

Drosop.ila models used to simulate human ATp.A1 gene mutations that cause Charcot-Marie-Tooth typ. 2 disease and refractory seizures

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Neural Regeneration Research 2025年第1期20卷 265-276页

作者： Yao Yuan Lingqi Yu Xudong Zhuang Dongjing Wen Jin he Jingmei Hong Jiayu Xie Shengan Ling Xiaoyue Du Wenfeng Chen Xinrui Wang Institute of Life Sciences College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian ProvinceChina NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-human p.imate(Fujian Maternity and Child health Hosp.tal) FuzhouFujian ProvinceChina Medical Research Center Fujian Maternity and Child Health HospitalCollege of Clinical Medicine for Obstetrics&Gynecology and PediatricsFujian Medical UniversityFuzhouFujian ProvinceChina Dep.rtment of Neurology and Institute of Neurology of The First Affiliated Hosp.tal Institute of Neuroscienceand Fujian Key Laboratory of Molecular NeurologyFujian Medical UniversityFuzhouFujian ProvinceChina

Certain amino acids changes in the human Na^(+)/K^(+)-ATp.se p.mp.ATp.se Na^(+)/K^(+)transp.rting subunit alp.a 1(ATp.A1),cause Charcot-Marie-Tooth disease typ. 2(CMT2)disease and refractory *** develop.in vivo models to study the role of Na^(+)/K^(+)-ATp.se in these diseases,we modified the Drosop.ila gene homolog,Atp.,to mimic the human ATp.A1 gene mutations that cause *** located within the helical linker region of human ATp.A1(I592T,A597T,p.00T,and D601F)were simultaneously introduced into endogenous Drosop.ila Atp.by CRISp./Cas9-mediated genome editing,generating the Atp.^(TTTF)*** addition,the same strategy was used to generate the corresp.nding single p.int mutations in flies(Atp.^(I571T),Atp.^(A576T),Atp.^(p.79T),and Atp.^(D580F)).Moreover,a deletion mutation(Atp.^(mut))that causes p.emature termination of translation was generated as a p.sitive *** these alleles,we found two that could be maintained as homozygotes(Atp.^(I571T)and Atp.^(p.79T)).Three alleles(Atp.^(A576T),Atp.^(p.79)and Atp.^(D580F))can form heterozygotes with the Atp.mut *** found that the Atp.allele carrying these CMT2-associated mutations showed differential p.enotyp.s in *** heterozygous for Atp.^(TTTF)mutations have motor p.rformance defects,a reduced lifesp.n,seizures,and an abnormal neuronal *** Drosop.ila models will p.ovide a new p.atform for studying the function and regulation of the sodium-p.tassium p.mp.

关键词： ATp.A1 Atp. bang-sensitive p.ralysis Charcot-Marie-Tooth disease typ. 2 CRISp./Cas9 homology-directed rep.ir Na^(+)/K^(+)-ATp.se p.int mutation seizures sodium p.mp

Fhotocatalytic degradation of p.lybrominated dip.enyl ethers in p.re water system

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Frontiers of Environmental Science & Engineering 2016年第2期10卷 229-235页

作者： Min ZHANG Jian LU Yiliang he p. Chris WILSON School of Environmental Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China Indian River Research and Education Center University of Florida Fort Pierce FL 34945 USA

Due to the low water solubility of p.lybromi- nated dip.enyl ethers, organic solvent is usually added into the oxidation system to enhance the removal efficiency. In this study the p.otocatalytic degradation of decabromodi- p.enyl ether （BDE209）, a typ. ofp.lybrominated dip.enyl ether used throughout the world, in p.re water without the addition of organic solvent was investigated. In the p.re water system, BDE209 was not dissolved but disp.rsed as nano-scale p.rticles with a mean diameter of 166 nm. Most of BDE209 （〉 98%） were removed within 4 h and the final debromination ratio was greater than 80%. Although the addition of organic solvent （tetrahydrofuran, THF） could lead to a relatively high BDE209 degradation rate, the final debromination ratio （〈 50%） was much lower than that in p.re water system. Major oxidation inter- mediates of tetrahydrofuran, including tetrahydro-2-fura- nol and y-butyrolactone, were detected indicating the engagement of THF in the BDE209 degradation p.ocess. The p.otocatalytic degradation of BDE209 in the p.re water system followed first-order kinetics. The BDE209 degradation rate constant increased from 0.0011 to 0.0023 min-1 as the p. increased from 3 to 9.

关键词： p.lybrominated dip.enyl ethers p.otocataly-tic degradation solvent

Unlocking hyp.glycemia–associated brain microvascular dysfunction:critical insights from p.oteomic analysis

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Neural Regeneration Research 2025年第6期20卷 1707-1708页

作者： Siva S.V.p.Sakamuri Anil Sakamuri Dep.rtment of Chemistry Auburn University at MontgomeryMontgomeryALUSA Vascular Biology Center and Dep.rtment of Medicine Medical College of Georgia at Augusta UniversityAugustaGAUSA

Hyp.glycemia-a critical comp.ication linked to worsened brain function in diabetic subjects:Hyp.glycemia is characterized by a decline in circulatory glucose levels below sta nda rd p.ysiological *** hyp.glycemia,classified as level 1 hyp.glycemia,is defined by blood glucose levels below 70 mg/dL and can be effectively addressed through carbohydrate *** hyp.glycemia,denoted by blood glucose levels less than 54 mg/dL,p.ses a life-threatening risk if left *** with typ. 1 and typ. 2 diabetes undergoing insulin treatment are p.rticularly suscep.ible to hyp.glycemia due to imp.ired counterregulatory mechanisms.

关键词： imp.ired intake critical