检索结果-南通市图书馆

Meningeal lymphatic vessel crosstalk with central nervous system immune cells in aging and neurodegenerative diseases

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 763-778页

作者： Minghuang Gao Xinyue Wang Shijie Su Weicheng Feng Yaona Lai Kongli Huang Dandan cao Qi Wang Science and Technology Innovation Center Guangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina Institute of Clinical Pharmacology Guangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina The Sixth Affiliated Hospital Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Meningeal lymphatic vessels form a relationship between the nervous system and periphery, which is relevant in both health and disease. Meningeal lymphatic vessels not only play a key role in the drainage of brain metabolites but also contribute to antigen delivery and immune cell activation. The advent of novel genomic technologies has enabled rapid progress in the characterization of myeloid and lymphoid cells and their interactions with meningeal lymphatic vessels within the central nervous system. In this review, we provide an overview of the multifaceted roles of meningeal lymphatic vessels within the context of the central nervous system immune network, highlighting recent discoveries on the immunological niche provided by meningeal lymphatic vessels. Furthermore, we delve into the mechanisms of crosstalk between meningeal lymphatic vessels and immune cells in the central nervous system under both homeostatic conditions and neurodegenerative diseases, discussing how these interactions shape the pathological outcomes. Regulation of meningeal lymphatic vessel function and structure can influence lymphatic drainage, cerebrospinal fluid-borne immune modulators, and immune cell populations in aging and neurodegenerative disorders, thereby playing a key role in shaping meningeal and brain parenchyma immunity.

关键词： central nervous system meningeal lymphatic vessels immunity myeloid cells lymphatic cells neurodegenerative disease

Investigating the dynamic memory effect of human drivers via ON-LSTM

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2020年第9期63卷 83-93页

作者： Shengzhe dai Zhiheng LI Li LI Dongpu cao Xingyuan dai Yilun LIN Department of Automation Tsinghua University Shenzhen International Graduate School Tsinghua University Department of Mechanical and Mechatronics Engineering University of Waterloo State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of Sciences

It is a widely accepted view that considering the memory effects of historical information(driving operations) is beneficial for vehicle trajectory prediction models to improve prediction accuracy. However,many commonly used models(e.g., long short-term memory, LSTM) can only implicitly simulate memory effects, but lack effective mechanisms to capture memory effects from sequence data and estimate their effective time range(ETR). This shortage makes it hard to dynamically configure the most suitable length of used historical information according to the current driving behavior, which harms the good understanding of vehicle motion. To address this problem, we propose a modified trajectory prediction model based on ordered neuron LSTM(ON-LSTM). We demonstrate the feasibility of ETR estimation based on ON-LSTM and propose an ETR estimation method. We estimate the ETR of driving fluctuations and lane change operations on the NGSIM I-80 dataset. The experiment results prove that the proposed method can well capture the memory effects during trajectory prediction. Moreover, the estimated ETR values are in agreement with our intuitions.

关键词： driving behavior memory effect trajectory prediction historical information ON-LSTM

DEARSENICATION FROM COBALT-ARSENIC CONCENTRATE BY VACUUM DISTILLATION

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 1994年第2期4卷 4-9页

作者： cao, Mingyan dai, Yongnian Sima, Zhongzhi Kunming Inst of Technology Kunminga China

ＤＥＡＲＳＥＮＩＣＡＴＩＯＮＦＲＯＭＣＯＢＡＬＴ－ＡＲＳＥＮＩＣＣＯＮＣＥＮＴＲＡＴＥＢＹＶＡＣＵＵＭＤＩＳＴＩＬＬＡＴＩＯＮＤＥＡＲＳＥＮＩＣＡＴＩＯＮＦＲＯＭＣＯＢＡＬＴ－ＡＲＳＥＮＩＣＣＯＮＣＥＮＴＲＡＴＥＢＹ... 详细信息

ＤＥＡＲＳＥＮＩＣＡＴＩＯＮＦＲＯＭＣＯＢＡＬＴ－ＡＲＳＥＮＩＣＣＯＮＣＥＮＴＲＡＴＥＢＹＶＡＣＵＵＭＤＩＳＴＩＬＬＡＴＩＯＮＤＥＡＲＳＥＮＩＣＡＴＩＯＮＦＲＯＭＣＯＢＡＬＴ－ＡＲＳＥＮＩＣＣＯＮＣＥＮＴＲＡＴＥＢＹＶＡＣＵＵＭＤＩＳＴＩＬＬＡＴＩＯ...

关键词： vacuum distillation cobalt-arsenic concentratc condensate residue redistillation

STUDY ON FLOWS THROUGH CENTRIFUGAL PUMP IMPELLER BY TURBULENT SIMULATION

在线全文

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 1997年第1期9卷 11-23页

作者： dai, Jiang Wu, Yulin cao, Shuliang Tsinghua Univ Beijing China

A finite volume numerical method is presented for simulating internal turbulent flows on the blade-to-blade surface through a centrifugal pump impeller, in which, a mesh in body-fitted coordinates is generated for the computation. The SIMPLEC algorithm is utilized for solving governing equations of incompressible viscous/turbulent flows through the pump impeller. The K-Ε turbulence model is adopted to describe the turbulent flow process. Some worthwhile simulated results are presented.

关键词： Centrifugal pumps Simulation Turbulence Turbulent flow

UNILATERAL BIFURCATION FOR SEVERAL-PARAMETER EIGENVALUE PROBLEM WITH HOMOGENEOUS OPERATOR

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2019年第5期39卷 1406-1414页

作者： Xiaofei cao Guowei dai Faculty of Mathematics and Physics Huaiyin Institute of Technology Huaian 223003 China School of Mathematical Sciences Dalian University of Technology Dalian 116024 China

We establish the unilateral global bifurcation result for the following nonlinear operator equation u=L(λ)u + H(λ, u),(λ, u)∈ Rm×X where m is a positive integer, X is a Banach space, L(·) is a positively homogeneous completely continuous operator and H:R^m×X → X is completely continuous with H=o (||u||) near u=0 uniformly on bounded λ sets.

关键词： global bifurcation several-parameter nonlinear problem

Enhancement of motor functional recovery in thoracic spinal cord injury: voluntary wheel running versus forced treadmill exercise

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 836-844页

作者： Do-Hun Lee Dan cao Younghye Moon Chen Chen Nai-Kui Liu Xiao-Ming Xu Wei Wu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteIndiana University School of MedicineIndianapolisINUSA Department of Neurological Surgery Indiana University School of MedicineIndianapolisINUSA Department of Neuroscience Baylor College of MedicineHoustonTXUSA

Spinal cord injury necessitates effective rehabilitation strategies, with exercise therapies showing promise in promoting recovery. This study investigated the impact of rehabilitation exercise on functional recovery and morphological changes following thoracic contusive spinal cord injury. After a 7-day recovery period after spinal cord injury, mice were assigned to either a trained group(10 weeks of voluntary running wheel or forced treadmill exercise) or an untrained group. Bi-weekly assessments revealed that the exercise-trained group, particularly the voluntary wheel exercise subgroup, displayed significantly improved locomotor recovery, more plasticity of dopaminergic and serotonin modulation compared with the untrained group. Additionally, exercise interventions led to gait pattern restoration and enhanced transcranial magnetic motor-evoked potentials. Despite consistent injury areas across groups, exercise training promoted terminal innervation of descending axons. In summary, voluntary wheel exercise shows promise for enhancing outcomes after thoracic contusive spinal cord injury, emphasizing the role of exercise modality in promoting recovery and morphological changes in spinal cord injuries. Our findings will influence future strategies for rehabilitation exercises, restoring functional movement after spinal cord injury.

关键词： behavioral assessment motor function neural plasticity running wheel exercise spinal cord injury treadmill exercise voluntary exercise

Thermophysical properties of Ni-5%Sn alloy melt

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2006年第2期49卷 236-245页

作者： dai Fuping cao Chongde WEI Bingbo Laboratory of Materials Science in Space Department of Applied Physics Northwestern Polytechnical University Xi'an 710072 China Laboratory of Materials Science in Space Department of Applied Physics Northwestern Polytechnical University Xi'an 710072 China Laboratory of Materials Science in Space Department of Applied Physics Northwestern Polytechnical University Xi'an 710072 China

The surface tension and specific heat of Ni-5%Sn alloy melt were measured by the oscillating drop method and the drop calorimetric method using electromagnetic levitation, respectively. The temperature coefficient of surface tension is 6.43×10-4 N·m?1K?1 within the temperature regime of 1464-1931 K. The enthalpy change was measured in the temperature range from 1461 to 1986 K, and the average specific heat was obtained as 43.03 J·mol?1K?1. Some other thermophysical properties, such as viscosity, solute dif-fusion coefficient, density, thermal diffusivity and thermal conductivity of this alloy melt, were derived based on the experimentally measured surface tension and specific heat. Using these thermophysical parameters, the relation between solute trapping and under-cooling in rapidly solidified α-Ni was calculated, and the theoretical prediction shows a good agreement with experimental data.

关键词： Thermophysical properties Surface tension Specific heat melt alloy Undercooling.

Electronic Structure of KFe_(2)Se_(2) from First-Principles Calculations

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2011年第5期28卷 230-233页

作者： cao Chao dai Jian-Hui Condensed Matter Physics Group Department of PhysicsHangzhou Normal UniversityHangzhou 310036 Zhejiang Institute of Modern Physics Department of PhysicsZhejiang UniversityHangzhou 310027

Electronic structures and magnetic properties for iron-selenide KFe_(2)Se_(2) are studied by first-principles *** ground state is collinear antiferromagnetic with calculated 2.26μB magnetic moment on Fe atoms;and the J_(1)and J_(2) coupling strengths are calculated to be 0.038eV and *** states around EF are dominated by the Fe 3d orbitals which hybridize noticeably to the Se 4p *** the band structure of KFe_(2)Se_(2) is similar to a heavily electron-doped BaFe_(2)As_(2) or FeSe system,the Fermi surface of KFe_(2)Se_(2) is much closer to the FeSe system since the electron sheets around M are symmetric with respect to x-y *** features,as well as the absence of Fermi surface nesting,suggest that the parent KFe_(2)Se_(2) could be regarded as an electron doped FeSe system with possible local moment magnetism.

关键词： system Fermi moment

Property(ω)and the Single-valued Extension Property

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2021年第8期37卷 1254-1266页

作者： Lei dai Xiao Hong cao Qi GUO School of Mathematics and Statistics Weinan Normal UniversityWeinan 714099P.R.China School of Computer Science Shaanxi Normal UniversityXi’an 710119P.R.China School of Mathematics and Information Science Shaanxi Normal UniversityXi’an 710119P.R.China

By the new spectrum originated from the single-valued extension property,we give the necessary and sufficient conditions for a bounded linear operator defined on a Banach space for which property(ω)***,the relationsh... 详细信息

关键词： Property(ω) the single-valued extension property hypercyclic property supercyclic property