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基于桌面虚拟现实技术的课程教育资源交互仿真平台设计

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无线互联科技 2024年第21期21卷 76-78页

作者：周佳乐王文袁子龙刘昭然张强森吉林师范大学博达学院吉林四平136000

为解决现有课程教育资源交互仿真平台流畅性和仿真度不足的问题,文章设计了基于桌面虚拟现实技术的交互仿真平台。平台硬件选型包括桌面虚拟现实设备和数据采集器,软件方面通过点云配准实现交互场景仿真并利用桌面虚拟现实技术更新场景... 详细信息

为解决现有课程教育资源交互仿真平台流畅性和仿真度不足的问题,文章设计了基于桌面虚拟现实技术的交互仿真平台。平台硬件选型包括桌面虚拟现实设备和数据采集器,软件方面通过点云配准实现交互场景仿真并利用桌面虚拟现实技术更新场景,以实现高质量的人机交互。实验结果显示,该平台在单位时间帧数量超过230,流畅性较好,交互场景仿真度达到95%以上,整体交互仿真效果优良。

关键词：桌面虚拟现实技术课程教育资源交互仿真点云配准

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FK506 contributes to peripheral nerve regeneration by inhibiting neuroinflammatory responses and promoting neuron survival

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Neural Regeneration Research 2025年第7期20卷 2108-2115页

作者： Yuhui Kou Zongxue Jin Yusong yuan Bo Ma Wenyong Xie Na Han Department of Trauma and Orthopedics Peking University People’s HospitalBeijingChina National Center for Trauma Medicine Peking University People’s HospitalBeijingChina Key Laboratory of Trauma and Neural Regeneration(Peking University) Ministry of EducationBeijingChina Trauma Medicine Center Peking University People’s HospitalBeijingChina Department of Orthopedics China-Japan Friendship HospitalBeijingChina

FK506(Tacrolimus)is a systemic immunosuppressant approved by the *** and Drug ***506 has been shown to promote peripheral nerve regeneration,however,its precise mechanism of action and its pathways remain *** this study,we established a rat model of sciatic nerve injury and found that FK506 improved the morphology of the injured sciatic nerve,increased the numbers of motor and sensory neurons,reduced inflammatory responses,markedly improved the conduction function of the injured nerve,and promoted motor function *** findings suggest that FK506 promotes peripheral nerve structure recovery and functional regeneration by reducing the intensity of inflammation after neuronal injury and increasing the number of surviving neurons.

关键词： FK506 inflammation motor neurons nerve regeneration neuron peripheral nerve injury sensory neurons

Mechanical and corrosion properties of biodegradable magnesium mini-tubes with different grain morphologies:Size and distribution

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Journal of Materials Science & Technology 2024年第16期183卷 165-174页

作者： Xiang Wang Chun Chen Bozun Miao zilong Wang Hua Huang Shaokang Guan Guangyin yuan National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240 China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China

Biodegradable magnesium(Mg)alloys have received much attention due to their biocompatibility and *** this study,to uncover the effects of grain morphologies,including grain size and distribution on mechanical and corrosion properties,biodegradable Mg-2.1Nd-0.2Zn-0.5Zr(wt.%)(denoted as JDBM)alloy mini-tubes for stent application with three typical microstructures were achieved success-fully by adjusting drawing *** with the bimodal structure exhibit the highest strengthductility balance attributed to the combined effects of fine grains and coarse grains,but show the fastest corrosion rate of about 1.00±0.136 mm/year mainly due to the formation of micro galvanic couples between coarse and fined *** with fine equiaxed grains show the lowest corrosion rate of about 0.17±0.059 mm/year,as well as uniform corrosion mode and mechanical properties of yield strength(YS)256±5.7 MPa,ultimate tensile strength(UTS)266±3.8 MPa,and elongation to failure(EL)13.5%±1.8%,attributed to the high-density grain *** with coarse equiaxed grains exhibit medium corrosion resistance and mechanical properties of about 175±4.8 MPa,221±4.0 MPa,and 21.53%±4.1%.Considering the mechanical and in vitro corrosion properties,biodegradable JDBM alloy implants are recommended to be composed of fine equiaxed grains,which can be used as microstructural targets for fabrication and processing.

关键词： Magnesium alloy Grain morphology Corrosion Mechanical properties Mini-tubes

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思南黄牛难产的原因调查与防治对策

贵州畜牧兽医 2023年第2期47卷 64-66页

作者：袁子龙覃廷玉邓华成张太华杨芳杨涛林汉卿黎江汪德生思南县动物疫病预防控制中心贵州思南565100 思南县畜牧发展中心贵州思南565100 贵州大学贵州贵阳550025

通过对思南县5个乡镇、9个肉牛养殖场、3种不同饲养方式的思南黄牛难产原因进行调查分析,结果表明:产犊胎次、饲养方式、胎儿体重是影响母牛难产的主要因素,其次为母牛营养不全、早产、超过预产期。针对病因提出规范配种方法、科学饲养... 详细信息

通过对思南县5个乡镇、9个肉牛养殖场、3种不同饲养方式的思南黄牛难产原因进行调查分析,结果表明:产犊胎次、饲养方式、胎儿体重是影响母牛难产的主要因素,其次为母牛营养不全、早产、超过预产期。针对病因提出规范配种方法、科学饲养方式、加强孕牛管理、合理搭配饲草饲料、开展养殖技术培训及难产救治的方法措施。

关键词：思南黄牛难产原因防治对策助产

Insight Into the Separation-of-Variable Methods for the Closed-Form Solutions of Free Vibration of Rectangular Thin Plates

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 329-355页

作者： Yufeng Xing Ye yuan Gen Li Institute of Solid Mechanics Beihang University(BUAA)Beijing100191China

The separation-of-variable(SOV)methods,such as the improved SOV method,the variational SOV method,and the extended SOV method,have been proposed by the present authors and coworkers to obtain the closed-form analytical solutions for free vibration and eigenbuckling of rectangular plates and circular cylindrical *** taking the free vibration of rectangular thin plates as an example,this work presents the theoretical framework of the SOV methods in an instructive way,and the bisection–based solution procedures for a group of nonlinear eigenvalue ***,the explicit equations of nodal lines of the SOV methods are presented,and the relations of nodal line patterns and frequency orders are *** is concluded that the highly accurate SOV methods have the same accuracy for all frequencies,the mode shapes about repeated frequencies can also be precisely captured,and the SOV methods do not have the problem of missing roots as well.

关键词： Separation-of-variable method Rayleigh quotient nodal line eigenvalue equation bisection method

Engineer Nanoscale Defects into Selective Channels:MOF-Enhanced Li^(+) Separation by Porous Layered Double Hydroxide Membrane

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Nano-Micro Letters 2023年第9期15卷 325-336页

作者： Yahua Lu Rongkun Zhou Naixin Wang Yuye Yang zilong Zheng Miao Zhang Quan-Fu An Jiayin yuan Beijing Key Laboratory for Green Catalysis and Separation Department of Chemical EngineeringBeijing University of TechnologyBeijing 100124People’s Republic of China Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124People’s Republic of China Department of Materials and Environmental Chemistry Stockholm University10691 StockholmSweden

Two-dimensional(2D)membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage,yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation *** imidazolate framework functionalized modified layered double hydroxide(ZIF-8@MLDH)composite membranes with high lithium-ion(Li^(+)) permeability and excellent operational stability were obtained in this work by in situ depositing functional ZIF-8 nanoparticles into the nanopores acting as framework defects in MLDH *** defect-rich framework amplified the permeability of Li^(+),and the site-selective growth of ZIF-8 in the framework defects bettered its *** speaking,the ZIF-8@MLDH membranes featured a high permeation rate of Li^(+) up to 1.73 mol m^(−2) h^(−1) and a desirable selectiv-ity of Li^(+)/Mg^(2+) up to *** supported that the simultaneously enhanced selectivity and permeability of Li+are attributed to changes in the type of mass transfer channels and the difference in the dehydration capacity of hydrated metal cations when they pass through nanochannels of *** study will inspire the ongoing research of high-performance 2D membranes through the engineering of defects.

关键词： Nanoscale defect construction Nanoparticles restrict growth Two-dimensional composite membrane Lithium-ion extraction High stability

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑yuan Yu Jing Wu Guang Yin Fan‑Zhen Jiao Zhong‑Zhen Yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

Biomass materials for zinc-based sustainable and green energy storage devices:Strategy and mechanism

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Nano Research 2025年第1期18卷 294-314页

作者： Xiaotong Yang Xiaoxin Nie Chenke Tang Yiyang Xiao Qiongguang Li Du yuan Meng Yao College of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410004China College of Materials Science and Engineering Sichuan UniversityChengdu 610065China Anhui Province International Research Center on Advanced Building Materials School of Materials and Chemical EngineeringAnhui Jianzhu UniversityHefei 230601China

As next-generation rechargeable alternatives,zincbased energy storage devices(ZESs)are being intensely explored due to their merits of abundant resource,low cost,safety and environmental ***,ZESs face a succession of critical challenges on pursuing advancing performance,including the stability and kinetics of cathode,stability and transport of zinc electrolyte,reversibility and deep utilization of metallic Zn ***,possessing unique molecular structures with abundant functionals groups,motivates the interdisciplinary field emerging from biomass and aqueous rechargeable *** its high compatibility with ZES design,we here summarize the application of biomass materials in ZESs from the aspects of cathode,electrolyte,membrane/separator and Zn anode,with their corresponding operational mechanisms and attractive functionalities from polymeric ***,the outlooks and perspectives are provided,regarding current challenges and future *** anticipate our minireview paves way on exploring the roles of biomass in aqueous rechargeable batteries.

关键词： zinc biomass materials skeleton/host coating solid-electrolyte interphase(SEI)

Cellular microparticles and pathophysiolog, of traumatic brain injury

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Protein & Cell 2017年第11期8卷 801-810页

作者： zilong Zhao yuan Zhou Ye Tian Min Li Jing-fei Dong Jianning Zhang Department of Neurosurgery Tianjin Institute of Neurology Tianjin Medical University General Hospital Tianjin 300052 China BloodWorks Northwest Research Institute Seattle WA 98102 USA Institute of Pathology School of Basic Medical Sciences Lanzhou University Lanzhou 730000 China Institute of Pathology School of Basic Medical Sciences Lanzhou University Lanzhou 730000 China Division of Hematology Department of Medicine School of Medicine University of Washington Seattle WA 98195 USA

Traumatic brain injury （TBI） is a leading cause of death and disability worldwide. The finding that cellular microparticles （MPs） generated by injured cells profoundly impact on pathological courses of TBI has paved the way for new diagnostic and therapeutic strategies. MPs are subcellular fragments or organelles that serve as carriers of lipids, adhesive receptors, cytokines, nucleic acids, and tissue-degrading enzymes that are unique to the parental cells. Their sub-micron sizes allow MPs to travel to areas that parental cells are unable to reach to exercise diverse biological functions. In this review, we summarize recent developments in identifying a casual role of MPs in the pathologies of TBI and suggest that MPs serve as a new class of therapeutic targets for the prevention and treatment of TBI and associated systemic complications.

关键词： traumatic brain injury cellularmicroparticles coagulopathy inflammation