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广西罗城地区某锡矿床矿石组构特征

世界有色金属 2024年第3期 59-61页

作者：覃兴涛吴特赟广西壮族自治区地球物理勘察院广西柳州545005

通过对位于九万大山地区南缘某锡矿床矿石结构构造特征进行研究,总结出该矿床矿物共生组合以及组构特征。主要结构包括半自形-近半自形粒状结构、它形粒状-半自形粒状结构、半自形-近半自形短柱状或粒状结构、鳞片状结构、显定向分布结... 详细信息

通过对位于九万大山地区南缘某锡矿床矿石结构构造特征进行研究,总结出该矿床矿物共生组合以及组构特征。主要结构包括半自形-近半自形粒状结构、它形粒状-半自形粒状结构、半自形-近半自形短柱状或粒状结构、鳞片状结构、显定向分布结构等;构造包括细脉浸染状构造、块状构造等,这些组构特征表明成矿作用具有多期多阶段的特征,并指示出热液成矿兼有后期构造改造的结构构造特征。

关键词：结构构造特征矿物组合特征矿石锡矿床罗城地区

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Instrumented Indentation Investigation on the Viscoelastic Properties of Porcine Cartilage

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Journal of Bionic Engineering 2013年第4期10卷 522-531页

作者： Yeau-Ren Jeng Chien-Ping Mao Kuan-te wu Department of Mechanical Engineering National Chung Cheng University Chia-Yi 621 Taiwan Advanced Institute for Manufacturing with High-tech Innovations National Chung Cheng University Chia-Yi 62102 Taiwan

Articular cartilage lubricates the contact surfaces in human joints and provides a shock-absorbing effect which protects the joint under dynamic loading. However, this shock-absorbing effect is gradually reduced as the result of normal wear, tear and aging-related cartilage loss. Thus, with the increasing average human life expectancy, the issue of joint health has attracted significant interest in recent decades. In developing new materials for the repair or regeneration of damaged articular cartilage, it is essential that the difference in the mechanical properties of healthy and damaged cartilages is well-understood. In the present study, the hardness and Young＇s modulus of damaged and healthy porcine articular cartilage samples are evaluated via a quasi-static nanoindentation technique. A dynamic mechanical analysis method is then applied to determine the viscoelastic properties of the two samples. The results presented in this study provide a useful insight into the mechanical properties of articular cartilage at the mesoscale, and therefore fill an important gap in the literature.

关键词： biotribology viscoelasticity human joints dynamic mechanical analysis depth-sensing technique

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基于负离子纤维的喷毛带子纱产品开发

纺织科学与工程学报 2024年第1期41卷 24-28页

作者：李武特王克毅许梦茹东华大学纺织学院上海201620

以涤纶负离子中长纤为原料,经过和毛、梳理、并条、粗纱工序后制成粗纱条,在花色喷毛机上喂入到由涤纶长丝编织的带子纱中,通过改变花色喷毛机的工艺参数制成三种不同细度的负离子喷毛带子纱,织成样片后进行负离子发生量的测试和评价。... 详细信息

以涤纶负离子中长纤为原料,经过和毛、梳理、并条、粗纱工序后制成粗纱条,在花色喷毛机上喂入到由涤纶长丝编织的带子纱中,通过改变花色喷毛机的工艺参数制成三种不同细度的负离子喷毛带子纱,织成样片后进行负离子发生量的测试和评价。结果表明,三种规格的喷毛带子纱负离子发生量皆大于1 000个/cm^(3),负离子发生量较高,能达到维持人体基本健康需求、增强免疫力的效果。纺纱试验表明,当粗纱喂入罗拉的速度控制在20 r/min~25 r/min,纱线细度控制在3 NM~3.3 NM时,所纺纱线的负离子发生量维持在最高水平。产品利用喷毛带子纱蓬松的纱线结构,使负离子纤维能更好地释放出负离子,发挥保健功效。

关键词：负离子纤维喷毛带子纱纺纱工艺测试与评价

Empower Women in Project Management

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项目管理评论 2018年第2期 94-95页

作者： te wu Montclair State University Portfolio Management Standard of PMI

Women have made steady gains in project management on many fronts including participation and *** compensation,the gap between men and women has steadily decreased from 24%in 1996 to 18%in 2000;in the latest Project Management Institute(PMI)global salary survey in late 2017,the gap is now nearly 14%(with variations in different regions as seen in Table 1).However,more must be done to attract women to

关键词： Project Empower Women in Project Management

Efficacy and safety of electroacupuncture for insomnia:A systematic review and meta-analysis

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Journal of Integrative Medicine 2024年第4期22卷 459-472页

作者： Han-yu Xu Lin-na wu Yuan Zhang te Ba Xiao-feng Zhao Acupuncture and Moxibustion Department First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300193China National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion Tianjin 300193China

Background:Electroacupuncture is often used to treat ***:To evaluate the efficacy and safety of electroacupuncture for *** strategy:Databases including PubMed,Cochrane Library,Embase,Web of Science,Chinese Biomedical Literature Database,China National Knowledge Infrastructure,Wanfang Data and VIP Fulltext e-Journals Database were searched up to January 15,*** criteria:Randomized clinical trials were included if they compared the clinical efficacy and safety of electroacupuncture with sham acupuncture,no treatment or usual care (UC) and general *** extraction and analysis:The full texts of the studies were reviewed to remove ineligible *** extracted data included authors,publication year,diagnostic criteria,sample size,population characteristics,interventions and *** above steps were performed independently by two reviewers and the data were cross ***15.0 software was used to analyze the extracted outcome *** continuous data (Pittsburgh Sleep Quality Index[PSQI]score and Insomnia Severity Index score),weighted mean difference (WMD) was calculated and 95% confidence interval (CI) was reported when the same scale was *** dichotomous variables (clinical response rate and adverse events),a meta-analysis was performed using risk ratio (RR) as the effect ***:Thirty-one trials with 2226 subjects were *** meta-analysis suggested that electroacupuncture was more effective in improving insomnia compared with the control group (sham acupuncture,no treatment,UC and general acupuncture)(RR=1.21;95 CI:[1.16,1.27]),significantly reducing the PSQI score in insomnia patients after treatment and at follow-up (WMD=-3.23;95%CI:[-4.29,-2.17];P<0.001).There was no significant difference in the incidence of adverse events between the EA and control groups (sham acupuncture and no treatment or ***=1.48;95%CI:[0.91,2.40];P=0.117).In addition,the regression results revealed t

关键词： Electroacupuncture Insomnia Systematic review Meta-analysis

Evolutionary games and spatial periodicity

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Journal of Automation and Intelligence 2023年第2期2卷 79-86页

作者： te wu Feng Fu Long Wang Center for Complex Systems Xidian UniversityXi’anChina Department of Mathematics Dartmouth CollegeHanoverNHUnited States of America Center for Systems and Control College of EngineeringPeking UniversityBeijingChina

Spatial interactions are considered an important factor influencing a variety of evolutionary processes that take place in structured *** still remains an open problem to fully understand evolutionary game dynamics on networks except for certain limiting scenarios such as weak *** we study the evolutionary dynamics of spatial games under strong selection where strategy evolution of individuals becomes deterministic in a fashion of winners taking *** show that the long term behavior of the evolutionary process eventually converges to a particular basin of attraction,which is either a periodic cycle or a single fixed state depending on specific initial conditions and model *** particular,we find that symmetric starting configurations can induce an exceedingly long transient phase encompassing a large number of aesthetic spatial patterns including the prominent kaleidoscopic *** finding holds for any population structure and a broad class of finite games beyond the Prisoner’s *** work offers insights into understanding evolutionary dynamics of spatially extended systems ubiquitous in biology and ecology.

关键词： Spatial games Evolutionary dynamics Periodic cycles Kaleidoscopic cooperation Spatial reciprocity

Flow regime and head loss in a drip emitter equipped with a labyrinth channel

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Journal of Hydrodynamics 2016年第4期28卷 610-616页

作者：张林吴普特朱德兰郑超 Institute of Soil and Water Conservation Northwest A&F University College of Water Resources and Architectural Engineering Northwest A&F University

Labyrinth channels are widely adopted in emitter designs to regulate the water *** flow regime and the head loss of labyrinth channels have significant impacts on the hydraulic performance of *** this study,the flow behavior of water passing through an emitter channel is observed using the micro particle image velocimetry（PIV）,and the head loss during the flow is analyzed for an emitter with a triangular labyrinth *** results show that the flow regime is consistent with the classical theory of hydraulics governing straight channels,even when the cross-sectional area is very small（as small as 0.5 mm×0.5 mm）.The critical Reynolds number from laminar to turbulent flows in a labyrinth channel is approximately in a range between 43 and *** local head loss factor decreases as the Reynolds number increases for labyrinth channels with smaller cross-sectional areas,such as 0.5 mm×0.5 mm and 1.0 mm×1.0 *** local head loss factor is not related to the Reynolds number and is only a function of the boundary conditions of the labyrinth channel when the Reynolds number exceeds approximately 1 000（for cross-sectional areas of 1.5 mm×1.5 mm and 2.0 mm×2.0 mm）.The ratio of the local head loss to the total head loss total（ /）j fh h first increases and then remains nearly constant as the Reynolds number increases in the labyrinth *** head loss in the labyrinth channel is almost equal to the local head loss,and total（ h_j/h_（ftctal））is approximately 0.95 for cross-sectional areas of greater than 1.0 mm×1.0 *** results can be used for optimizing the design of emitter channels.

关键词： Reynolds emitter turbulent laminar straight sectional regime hydraulic passing beads

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高速齿轮箱润滑系统密封结构的数值研究

铁道学报 2014年第4期36卷 26-31页

作者：吴特米彩盈西南交通大学机械工程学院四川成都610031

以高速动车组驱动齿轮箱小齿轮电机端的迷宫密封为研究对象,建立带有甩油环的迷宫密封数值仿真模型——可压缩二维轴对称有旋流动。采用标准k-ε湍流模型和增强壁面处理模拟迷宫密封腔内流场分布及泄漏特性。应用Fluent软件,对Navier-St... 详细信息

以高速动车组驱动齿轮箱小齿轮电机端的迷宫密封为研究对象,建立带有甩油环的迷宫密封数值仿真模型——可压缩二维轴对称有旋流动。采用标准k-ε湍流模型和增强壁面处理模拟迷宫密封腔内流场分布及泄漏特性。应用Fluent软件,对Navier-Stokes方程、能量方程和湍流方程采用有限体积法离散,压力-速度耦合采用SIMPLE算法。研究空腔深度对密封性能的影响,确定最优的空腔深度,同时研究压差和转速对泄漏量的影响规律。研究结果表明:随着空腔深度的增加,泄漏量先减小后增大;随着压差的增大,泄漏量增大;在不考虑温升的条件下,转速对泄漏量的影响很小,但随着转速的增大,密封性能提高。

关键词：齿轮箱迷宫密封流场泄漏量

Data Classification with Modified Density Weighted Distance Measure for Diffusion Maps

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Journal of Biosciences and Medicines 2014年第4期2卷 12-18页

作者： Ko-Kung Chen Chih-I Hung Bing-Wen Soong Hsiu-Mei wu Yu-te wu Po-Shan Wang 1Department of Biomedical Imaging and Radiological Sciences National Yang-Ming University Taipei 4Institute of Biophotonics National Yang-Ming University Taipei Department of Biomedical Imaging and Radiological Sciences National Yang-Ming University Taipei Department of Neurology Taipei Veteran General Hospital Taipei Department of Radiology Taipei Veteran General Hospital Taipei The Neurological Institute Taipei Municipal Gan-Dau Hospital New Taipei

Clinical data analysis is of fundamental importance, as classifications and detailed characterizations of diseases help physicians decide suitable management for patients, individually. In our study, we adopt diffusion maps to embed the data into corresponding lower dimensional representation, which integrate the information of potentially nonlinear progressions of the diseases. To deal with nonuniformaity of the data, we also consider an alternative distance measure based on the estimated local density. Performance of this modification is assessed using artificially generated data. Another clinical dataset that comprises metabolite concentrations measured with magnetic resonance spectroscopy was also classified. The algorithm shows improved results compared with conventional Euclidean distance measure.

关键词： Diffusion Maps Density Estimation Spinocerebellar Ataxia