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| 1 | Recanalization of extracranial internal carotid artery occlusion A 12-year retrospective study显示文摘This study aimed to summarize therapy experience of carotid endarterectomy, carotid endarterec-tomy combined with Fogarty catheter embolectomy, and hybrid surgery for the treatment of extrac-ranial internal carotid artery occlusion. The study included 65 patients with extracranial internal ca-rotid artery occlusion who underwent carotid endarterectomy, carotid endarterectomy combined with Fogarty catheter embolectomy, or hybrid surgery in the Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China between January 2006 and December 2012. Prior to surgery, all patients underwent perfusion CT or xenon CT to evaluate the occlusion. The procedure for each patient was chosen according to digital subtraction angiography data. The carotid artery was successfully recanalized in 46 of 51 patients who underwent carotid endarterectomy, 9 of 10 patients who underwent carotid endarterectomy combined with Fogarty catheter embolectomy, and 3 of 4 patients who underwent hybrid surgery. In patients with symptomatic carotid artery occlusion, the carotid artery can be recanalized by choosing a treatment procedure based on imaging ex-amination findings. | Liqun Jiao Gang Song Yang Hua Yan Ma Yanfei Chen Yabing Wang Feng Ling | 2013 | Neural Regeneration Research2013,8,23: | 19 |
| 2 | A cellular automata evacuation model considering friction and repulsion显示文摘There exist interactions among pedestrians and between pedestrian and environment in evacuation. These interactions include attraction, repulsion and friction that play key roles in human evacuation behaviors, speed and efficiency. Most former evacuation models focus on the attraction force, while repulsion and friction are not well modeled. As a kind of multi-particle self-driven model, the social force model introduced in recent years can represent those three forces but with low simulation efficiency because it is a continuous model with complex rules. Discrete models such as the cellular automata model and the lattice gas model have simple rules and high simulation efficiency, but are not quite suitable for interactions’ simulation. In this paper, a new cellular automata model based on traditional models is introduced in which repulsion and friction are modeled quantitatively. It is indicated that the model can simulate some basic behaviors, e.g. arching and the “faster-is-slower” phenomenon, in evacuation as multi-particle self-driven models, but with high efficiency as the normal cellular automata model and the lattice gas model. | SONG Weiguo YU Yanfei FAN Weicheng Zhang Heping | 2005 | Science China(Technological Sciences)2005,48,4: | 19 |
| 3 | A unifying approach in simulating the shot peening process using a 3D random representative volume finite element model显示文摘Using a modified 3D random representative volume(RV)finite element model,the effects of model dimensions(impact region and interval between impact and representative regions),model shapes(rectangular,square,and circular),and peening-induced thermal softening on resultant critical quantities(residual stress,Almen intensity,coverage,and arc height)after shot peening are systematically examined.A new quantity,i.e.,the interval between impact and representative regions,is introduced and its optimal value is first determined to eliminate any boundary effect on shot peening results.Then,model dimensions are respectively assessed for all model shapes to reflect the actual shot peening process,based on which shape-independent critical shot peening quantities are obtained.Further,it is found that thermal softening of the target material due to shot peening leads to variances of the surface residual stress and arc height,demonstrating the necessity of considering the thermal effect in a constitutive material model of shot peeing.Our study clarifies some of the finite element modeling aspects and lays the ground for accurate modeling of the SP process. | Dianyin HU Ye GAO Fanchao MENG Jun SONG Yanfei WANG Mengxi REN Rongqiao WANG | 2017 | Chinese Journal of Aeronautics2017,30,4: | 13 |
| 4 | Review of Hydrogen Embrittlement in Metals: Hydrogen Diffusion, Hydrogen Characterization, Hydrogen Embrittlement Mechanism and Prevention显示文摘Hydrogen dissolved in metals as a result of internal and external hydrogen can affect the mechanical properties of the metals, principally through the interactions between hydrogen and material defects. Multiple phenomena such as hydrogen dissolution, hydrogen diffusion, hydrogen redistribution and hydrogen interactions with vacancies, dislocations, grain boundaries and other phase interfaces are involved in this process. Consequently, several hydrogen embrittlement(HE) mechanisms have been successively proposed to explain the HE phenomena, with the hydrogen-enhanced decohesion mechanism, hydrogenenhanced localized plasticity mechanism and hydrogen-enhanced strain-induced vacancies being some of the most important. Additionally, to reduce the risk of HE for engineering structural materials in service, surface treatments and microstructural optimization of the alloys have been suggested. In this review, we report on the progress of the studies on HE in metals, with a particular focus on steels. It focuses on four aspects:(1) hydrogen diffusion behavior;(2) hydrogen characterization methods;(3) HE mechanisms;and(4) the prevention of HE. The strengths and weaknesses of the current HE mechanisms and HE prevention methods are discussed, and specific research directions for further investigation of fundamental HE mechanisms and methods for preventing HE failure are identified. | Xinfeng Li Xianfeng Ma Jin Zhang Eiji Akiyama Yanfei Wang Xiaolong Song | 2020 | Acta Metallurgica Sinica(English Letters)2020,33,6: | 13 |
| 5 | Development and utilization of a new chemically-induced soybean library with a high mutation density显示文摘Mutagenized populations have provided important materials for introducing variation and identifying gene function in plants. In this study, an ethyl methanesulfonate(EMS)-induced soybean(Glycine max) population,consisting of 21,600 independent M_2 lines, was developed.Over 1,000 M_(4(5))families, with diverse abnormal phenotypes for seed composition, seed shape, plant morphology and maturity that are stably expressed across different environments and generations were identified. Phenotypic analysis of the population led to the identification of a yellow pigmentation mutant, gyl, that displayed significantly decreased chlorophyll(Chl) content and abnormal chloroplast development. Sequence analysis showed that gyl is allelic to Minn Gold, where a different single nucleotide polymorphism variation in the Mg-chelatase subunit gene(ChlI1a) results in golden yellow leaves. A cleaved amplified polymorphic sequence marker was developed and may be applied to marker-assisted selection for the golden yellow phenotype in soybean breeding. We show that the newly developed soybean EMS mutant population has potential for functional genomics research and genetic improvement in soybean. | Zhongfeng Li Lingxue Jiang Yansong Ma Zhongyan Wei Huilong Hong Zhangxiong Liu Jinhui Lei Ying Liu Rongxia Guan Yong Guo Longguo Jin Lijuan Zhang Yinghui Li Yulong Ren Wei He Ming Liu Nang Myint Phyu Sin Htwe Lin Liu Bingfu Guo Jian Song Bing Tan Guifeng Liu Maiquan Li Xianli Zhang Bo Liu Xuehui Shi Sining Han Sunan Hua Fulai Zhou Lili Yu Yanfei Li Shuang Wang Jun Wang Ruzhen Chang Lijuan Qiu | 2017 | Journal of Integrative Plant Biology2017,59,1: | 6 |
| 6 | Experimental Investigation for Co-Combustion Characteristics of Semi-Coke and Bituminous Coal in a 3 MWth Tangential Combustion Facility显示文摘An experimental investigation was conducted in a 3 MW pilot-scale tangential combustion facility to explore the co-combustion characteristics of bituminous coal mixed with semi-coke.The thermal gravimetric analyzer(TGA)was used to obtained fuel thermal analysis.The results presented effects of semi-coke blending ratio(BR)on average furnace temperature,ignition temperature,NO emission and combustion efficiency.The excess air coefficient in main combustion sections and outlet were fixed at 0.85 and 1.2 while BR increased from 0%to 50 wt.%.The temperature profiles of combustion decreases along the height of furnace while average furnace temperature fluctuates slightly with an increasing BR.The concentration of NO has an increasing tendency with the increasing of BR.The ignition temperature obtained from TGA measurement agreed well with experiment result.In addition,combustion efficiency was not sensitive to BR and decreased slightly with the increasing BR. | GUAN Jingyu YU Qiang SUN Rui SHEN Tao WANG Minghao YAN Yanfei SONG Xin | 2020 | Journal of Thermal Science2020,29,6: | 2 |
| 7 | Evacuation behaviors at exit in CA model with force essen- tials: a comparison with social force model显示文摘 | Song Weiguo Yu Yanfei Wang Binghong | 2006 | Physica A : Statistical Mechanics and Its Applications2006,371,2: | 1 |
| 8 | Study on the re-enhancement of SO2 into reactive slurry显示文摘 | Ma Yanfei Wang Jiusi Song Guangshun et a1 | 2005 | Chemical Reaction En-gineering and Industry2005,3,3: | 1 |
| 9 | A modified pulse charging method for lithium-ion batteries by considering stress evolution,charging time and capacity utilization显示文摘The stress evolution, total charging time and capacity utilization of pulse charging (PC) method are investigated in this pape匚 It is found that compared to the conventional constant current (CC) charging method, the PC method can accelerate the charging process but will inevitably cause an increase in stress and a decrease in capacity. The charging speed for PC method can be estimated by the mean current. By introducing stress control, a modified PC method called the PCCC method, which starts with a PC operation followed by a CC operation, is proposed. The PCCC method not only can accelerate charging process but also can avoid the stress raising and capacity loss occurring in the PC method. Furthermore, the optimal pulsed current density and switch time in the PCCC method is also discussed. | Yanfei ZHAO Bo LU Yicheng SONG Junqian ZHANG | 2019 | Frontiers of Structural and Civil Engineering2019,13,2: | 0 |
| 10 | Understanding Modulus Variation of the Active Layers of Silicon Composite Electrodes显示文摘The variation of the effective modulus of silicon composite electrodes,which is a fundamental feature to analyze the coupled mechanical–electrochemical behavior of Si-based electrodes in high-capacity lithium-ion batteries,remains qualitatively controversial.To clarify the contradictory experimental results,numerical modeling of a representative volume element with silicon particles,carbon-binder domains(CBDs),and pores has been performed for the lithiation process.The key parameters for modulus variation were identified and evaluated.A mesostructure change is proposed to be a crucial mechanism that affects the modulus variation,and silicon softening is another key mechanism.Silicon softening and the decreasing CBD volume fraction collectively result in a decrease in the effective modulus of the composite,whereas an increase in the silicon volume fraction along with a decrease in porosity has the opposite effect.The findings of this work provide an in-depth and fundamental understanding of the mechanical properties of silicon composite electrodes. | Bowen Sun Yanfei Zhao Yicheng Song Junqian Zhang Bo Lu | 2022 | Acta Mechanica Solida Sinica2022,35,6: | 0 |
| 11 | 具有高导热性的聚乙烯薄膜显示文摘聚合物材料,也就是通常说的塑料,由于其独特的性能,使其成为热绝缘体的绝佳材料。近年来的研究表明,聚合物具有较高的导热性,但其传输机制仍然未知。在本文中作者发明了一种具有62Wm^-1K^-1高导热性的聚乙烯薄膜,比普通聚合物的导热性(-0.1Wm^-1K^-1)大两个数量级,甚至超过许多常见的金属和陶瓷。结构研究和热模拟实验表明,这种薄膜由具有晶态和非晶态区域的纳米纤维组成,非晶态区域具有非常高(>16Wm^-1K^-1)的导热系数。作者的这项研究成果为具有重量轻、耐用、柔韧、耐腐蚀、易于加工等优势的高导热聚合物的设计和合成奠定了基础。 | Yanfei Xu Daniel Kraemer Bai Song Zhang Jiang Jiawei Zhou James Loomis Jianjian Wang Mingda Li Hadi Ghasemi Xiaopeng Huang Xiaobo Li Gang Chen 李巧红 | 2019 | 家电科技2019,0,3: | 0 |
| 12 | Survey and Analysis of Community Care Service in Cities and Towns from the Perspective of Internet显示文摘With the aging of the social population,community care has become another important care model between home care and institutional care.In order to fully understand the social cognition and demand of'Internet+community care',the project team conducted a questionnaire survey in accordance with the research objectives.The survey concluded that the public are still dependent on the traditional care,and do not know much about'Internet+community care',but are willing to try.'Internet+community care'can not only enrich and innovate the care model,but also effectively solve the problems of limited pension resources and mismatch between supply and demand.It is conducive to promoting the realization of high-quality and efficient services for the aged. | Jiaxu HUANG Jiaqi LI Yanfei LI Ying WANG Shuli SONG | 2020 | Asian Agricultural Research2020,12,9: | 0 |
| 13 | Prelithiation design for suppressing delamination in lithium-ion battery electrodes显示文摘Prelithiation has been intensively investigated in high-capacity lithiumion batteries(LIBs).However,the optimization of prelithiation degrees for long service life of LIBs still remains a challenge.The positive effect of prelithiation on suppressing degradation of LIBs,besides directly pursuing the high first Coulomb efficiency which has been widely reported in the literature,is revealed and discussed based on an analytical model focusing on the interfacial delamination in electrodes.For full charge-discharge cycling,well-designed prelithiation can effectively suppress the delamination and reduce the debonding size by approximately 25%,compared with the case without prelithiation.For the strategy combining partial charge-discharge cycling and prelithiation,the largest reversible capacity without debonding can be significantly improved by approximately100%with well-designed prelithiation.This work is expected to provide a prelithiation design principle and further improve the mechanical stability of LIB electrodes. | Yifei QIAN Bo LU Yinhua BAO Yanfei ZHAO Yicheng SONG Junqian ZHANG | 2021 | Applied Mathematics and Mechanics(English Edition)2021,42,12: | 0 |
| 14 | Molecular Cloning and Bioinformatics Analysis of kdpE Gene from Vibrio alginolyticus显示文摘The two-component regulatory system plays an important role in the growth and virulence of bacteria.In this study,the phosphate transcriptional regulatory protein (KdpE) gene of Vibrio alginolyticus strain HY9901 was cloned.Sequence analysis revealed that the length of kdp E gene is 732 bp and encodes a putative protein of 243 amino acids.The predicted molecular weight (MW) of Kdp E was 27.66 k D with an estimated p I of 5.01.Using SignalP 4.0 and TMHMM Server 2.0 software,it was predicted that the Kdp E protein was located in cytoplasm.It did not contain a signal peptide or a transmembranous region.A phylogenetic tree was constructed by MEGA 5.0 software,indicating that the Kdp E of V.alginolyticus had high genetic relationship with Vibrio campbellii and Vibrio parahaemolyticus.Using SWISS-MODEL work-space,the three-dimensional structures of conserved domain REC in the Kdp E was determined.These results can provide a basis for further studies on the two-component regulatory systems of V.alginolyticus. | Hong Shunhua Yang Fan Pang Huanying Zhang Yanfei Song Dawei Wang Zhiwen Lu Yishan Jian Jichang | 2016 | Animal Husbandry and Feed Science2016,8,5: | 0 |
| 15 | Light-controlled switchable underwater adhesive显示文摘Despite extensive efforts in designing and preparing switchable underwater adhesives,it is not easy to regulate the underwater adhesion strength locally and remotely.Here,we design and synthesize photoreversible copolymer of poly[dopamine methacrylamide-co-methoxyethyl-acrylate-co-7-(2-methacryloyloxyethoxy)-4-methylcoumarin].Due to the dynamic formation and breaking of chemical crosslinking networks within the smart adhesives,the material shows widely tunable adhesion strength from∼150 to∼450 kPa and long-range reversible maneuverability under orthogonal 254 and 365 nm ultraviolet light stimulation via the coumarin dimerization and cycloreversion.Moreover,the adhesive exhibits good circulation performance and stability in an acid–base environment.It also demonstrated that the bolt can be coated with the smart adhesive material for on-demand bonding.This design principle opens the door to the development of remotely controllable high-performance smart underwater adhesives. | Song Yang Yanfei Ma Chenxi Qin Zhizhi Zhang Jianqing Yu Xiaowei Pei Bo Yu Wenbo Sheng Feng Zhou Weimin Liu | 2024 | SmartMat2024,5,2: | 0 |
| 16 | Disruption of the autism-related gene Pak1 causes stereocilia disorganization,hair cell loss,and deafness in mice显示文摘Several clinical studies have reported that hearing loss is correlated with autism in children.However,little is known about the underlying mechanism between hearing loss and autism.p21-activated kinases(PAKs)are a family of serine/threonine kinases that can be activated by multiple signaling molecules,particularly the Rho family of small GTPases.Previous studies have shown that Pak1 mutations are associated with autism.In the present study,we take advantage of Pak1 knockout(Pak1a/a)mice to investigate the role of PAK1 in hearing function.We find that PAK1 is highly expressed in the postnatal mouse cochlea and that PAK1 deficiency leads to hair cell(HC)apoptosis and severe hearing loss.Further investigation indicates that PAK1 deficiency downregulates the phosphorylation of cofilin and ezrin-radixin-moesin and the expression of b II-spectrin,which further decreases the HC synapse density in the basal turn of cochlea and disorganized the HC stereocilia in all three turns of cochlea in Pak1à/àmice.Overall,our work demonstrates that the autism-related gene Pak1 plays a crucial role in hearing function.As the first candidate gene linking autism and hearing loss,Pak1 may serve as a potential target for the clinical diagnosis of autism-related hearing loss. | Cheng Cheng Yilin Hou Zhonghong Zhang Yanfei Wang Ling Lu Liyan Zhang Pei Jiang Song Gao Qiaojun Fang Chengwen Zhu Junyan Gao Xufeng Liu Wei Xie Zhengping Jia Zhigang Xu Xia Gao Renjie Chai | 2021 | Journal of Genetics and Genomics2021,48,4: | 0 |
| 17 | A Pore-Forming Strategy Toward Porous Carbon-Based Substrates for High Performance Flexible Lithium Metal Full Batteries显示文摘Self-standing carbon-based substrates with satisfied structural stability and property adjustability have promising applications in flexible lithium(Li)metal batteries(FLMBs).Current strategies for modifying carbon materials are normally carried out on powder carbon,and very few of them are suitable for self-standing carbon substrates.Herein,a pore-forming strategy based on the redox chemistry of metallic oxide nanodots is developed to prepare two porous carbon substrates for anode and cathode.Starting with cotton cloth,the resulting hollow carbon fibers substrate with nanopores effectively prevents from Li dendrites formation and large volume change in lithium metal anode(LMA).Simulations indicate that the porous structure leads to homogeneous ion flux,Li-ion concentration,and electric field during Li deposition.Li symmetrical cell based on this substrate remains stable for 8300 h with an ultralow voltage hysteresis of 9 mV.Via a similar route,porous carbon cloth substrate is obtained for subsequently seeding V_(2)O_(5)nanowires to prepare the cathode.The assembled FLMBs pouch cell delivers a capacity of 8.2 mAh with a high capacity retention of~100%even under dramatic deformation.The demonstrated strategy has far-reaching potential in preparing free-standing porous carbon-based materials for flexible energy storage devices. | Yanfei Li Shuyang Ye Jian Lin Yihan Song Xinglong Wu Jingping Zhang Changlu Shao Zhongmin Su Haizhu Sun Dwight S.Seferos | 2023 | Energy & Environmental Materials2023,6,3: | 0 |
| 18 | Water Molecule-Triggered Anisotropic Deformation of Carbon Nitride Nanoribbons Enabling Contactless Respiratory Inspection显示文摘The exploitation of the interaction between nanostructured matter and small molecules,such as H_(2)O at interfaces via dynamic hydrogen bonding,is essentially the key for smart,responsive nanodevices but remains challenging.Herein,the authors report that the carbon nitride nanoribbons(CNNRs)with an anisotropic intraplanar and interplanar molecular arrangement underwent a deformation by H_(2)O triggering.Both experiments of bulk samples and single nanoribbons disclosed that the reversible formation of a hydrogen-bonded H_(2)O adsorption layer was the source of the CNNRs deformation,reminiscent of the hydration-triggered twist of natural bean pods in seeding.Nonetheless,CNNRs had a more balanced H_(2)O affinity,enabling a superior response and recovery time.By coupling with carbon nanotubes,the authors also converted the deformation of CNNRs into more straightforward electrical readouts with record-fast response time.Further applied to capture fluctuations in humidity in real-time respiration,a higher detection sensitivity was obtained in a contactless mode,which compared favorably with the clinical breath-testing station.Given the carbon nitride family with various C/N ratios,surface properties,and topography,this finding that CNNRs are an outstanding H_(2)O transducer would significantly pave the way for the H_(2)O-triggered smart devices in broad prospective applications. | Yuye Zhang Yongxiu Song Yanfei Shen Kaiyang Chen Qing Zhou Yanqin Lv Hong Yang Ensheng Xu Songqin Liu Lei Liu Yuanjian Zhang | 2021 | CCS Chemistry2021,3,6: | 0 |
| 19 | Molecular Cloning and Bioinformatics Analysis of kdpD Gene from Vibrio alginolyticus显示文摘In this study,histidine kinase gene kdpD in the two-component regulatory system of Vibrio alginolyticus strain HY9901 was cloned for bioinformatics analysis. Sequence analysis revealed that kdpD gene( GenB ank accession number: KJ544668) was 1 374 bp in length,encoding a putative protein of 457 amino acids. The predicted molecular weight( MW) of KdpE was 51. 60 kD with a theoretical isoelectric point( pI) of 6. 02. Using SignalP 4. 0,TMHMM Server 2. 0 and SoftB erry-Psite software,it was predicted that KdpE protein was equally located in Golgi apparatus,plasma membrane and endoplasmic reticulum( 33. 3%),which did not contain a signal peptide but contained three transmembrane domains. KdpE protein had five casein kinase II phosphorylation sites,five protein kinase C phosphorylation sites and one cA MP- and cG MP-dependent protein kinase phosphorylation site. A phylogenetic tree was constructed by MEGA 5. 0 software,which revealed that KdpD from V. alginolyticus had close genetic relationship with corresponding proteins from V. campbellii and V. parahaemolyticus. Using SWISSMODEL Workspace,the three-dimensional structure of HATPase_c conserved domain in KdpD protein was constructed. These results may provide the basis for further studies on two-component regulatory system KdpD/KdpE of V. alginolyticus. | Haitao LIU Fan YANG Huanying PANG Yanfei ZHANG Dawei SONG Shuhe CHEN Ganlin WU Jichang JIAN | 2016 | Agricultural Biotechnology2016,5,3: | 0 |
| 20 | A mite parasitoid,Pyemotes zhonghuajia,negatively impacts the fitness traits and immune response of the fall armyworm,Spodoptera frugiperda显示文摘Parasitoids are key regulators in ecological communities and widely used as agents in biocontrol programmes.The fall armyworm,Spodoptera frugiperda,recently invaded multiple continents and caused substantial economic losses in agriculture.Pyemotes zhonghuajia,a newly identified mite parasitoid,has shown potential for controlling various agricultural insect pests.Therefore,this study tested the performance of P.zhonghuajia in parasitising S.frugiperda.We also investigated the sublethal effects of parasitism by P.zhonghuajia on host fitness traits,transgenerational impacts,and cellular and humoral immunity.Our result showed that the fifth-instar larvae of S.frugiperda parasitised by 40 P.zhonghuajia were all dead(i.e.,a lethal effect),while parasitism by 5 or 10 P.zhonghuajia was considered sublethal since many S.frugiperda survived to adulthood and produced offspring after mating.The sublethal influences from parasitism by P.zhonghuajia resulted in reduced pupal weight,adult emergence rate and fecundity,but increased developmental time and longevity.Parasitism at both lethal(40 mites)and sublethal(10 mites)levels impaired the cellular and humoral immunity of S.frugiperda.This study presents the first empirical evidence that mite parasitoids can negatively influence host immunity.Moreover,it provides insights into the biocontrol potential of mite parasitoids and their interactions with hosts. | Yanfei Song Tai’an Tian Yichai Chen Keshi Zhang Maofa Yang Jianfeng Liu | 2024 | Journal of Integrative Agriculture2024,23,1: | 0 |