检索结果-南通市图书馆

悬吊下躯干控制训练对脑卒中后遗症期运动功能的康复作用

在线全文

学校读者我要写书评

暂无评论

中国现代神经疾病杂志 2017年第4期17卷 266-269页

作者：晏小华熊建忠李生伟周永辉魏文秀江西省萍乡市人民医院康复医学科 337055

目的探讨两种躯干控制训练方法对脑卒中后遗症期运动功能的康复作用。方法共42例脑卒中患者随机分为对照组和观察组,对照组采用传统躯干控制训练,观察组采用悬吊下躯干控制训练,两组患者均接受其他常规康复训练。分别于治疗前和治疗后2... 详细信息

目的探讨两种躯干控制训练方法对脑卒中后遗症期运动功能的康复作用。方法共42例脑卒中患者随机分为对照组和观察组,对照组采用传统躯干控制训练,观察组采用悬吊下躯干控制训练,两组患者均接受其他常规康复训练。分别于治疗前和治疗后20 d采用躯干控制能力测验(TCT)、功能性步行分级量表(FAC)、Berg平衡量表(BBS)和10 m最大步行速度(10 m MWS)评价运动功能。结果治疗后两组TCT评分(P=0.000)、FAC评分(P=0.000)、BBS评分(P=0.000)和10 m MWS评分(P=0.000)均高于治疗前,观察组TCT评分(P=0.000)、FAC评分(P=0.002)、BBS评分(P=0.000)和10 m MWS评分(P=0.000)亦高于对照组。结论悬吊下躯干控制训练可以有效提高脑卒中后遗症期运动功能。

关键词：中风后遗症运动障碍悬吊训练(非MeSH词) 躯干控制训练(非MeSH词) 康复

大直径水下盾构隧道水下不分散砂浆应用与效果分析

在线全文

学校读者我要写书评

暂无评论

山西建筑 2025年第2期51卷 169-174页

作者：盛健中铁十四局集团大盾构工程有限公司江苏南京210000

随着现代工程建设技术的发展,特殊砂浆作为一种性能优越的建筑材料,在工程中的应用越来越广泛。其中水下不分散砂浆在基岩裂隙水发育丰富、地下动水丰沛且受潮汐影响流动性强的地下工程建设中取得了较好的效果。依托广州海珠湾隧道工程... 详细信息

随着现代工程建设技术的发展,特殊砂浆作为一种性能优越的建筑材料,在工程中的应用越来越广泛。其中水下不分散砂浆在基岩裂隙水发育丰富、地下动水丰沛且受潮汐影响流动性强的地下工程建设中取得了较好的效果。依托广州海珠湾隧道工程大直径水下盾构隧道试验段,结合普通砂浆与水下不分散砂浆在相同环境使用下的情况,从室内试验、地质雷达扫描、地表沉降监测、管片错台、渗漏水、上浮等方面进行对比分析跟踪验证,来对水下不分散砂浆的可行性开展分析。

关键词：大直径水下盾构隧道水下不分散砂浆基岩裂隙水发育地下动水丰沛

ε-Poly(L-lysine)-based Hydrogels with Fast-acting and Prolonged Antibacterial Activities

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2018年第11期36卷 1239-1250页

作者： Yi-Jie Zou Shi-sheng He jian-zhong Du Department of Orthopedics Shanghai Tenth People's Hospital Tongji University School of Medicine Department of Polymeric Materials School of Materials Science and Engineering Key Laboratory of Advanced Department Civil Engineering Materials of Ministry of Education Tongji University

Bacterial infections and the associated morbidity and mortality due to bacterial pathogens in wounds and medical implants have been increasing as most of current coatings cannot fulfill all the requirements including excellent intrinsically antibacterial activity, low cytotoxicity, and favorable physical properties. Herein, we present a kind of antibacterial bydrogel based on e-poly（L-lysine）（EPL） grafted carboxymethyl chitosan （CMC-g-EPL） as the inherently antibacterial matrix and the surplus EPL as highly efficient antimicrobial agent. Such hydrogels possess tunable swelling abilities with water absorption percentages of 800%-2000% and modulus varying from 10 kPa to 100 kPa, and exhibit two-stage excellent antibacterial behavior. First, the free EPL can be released from the hydrogel network for quick and highly efficient bacteria killing with 99.99% of efficacy; second, the grafted EPL endows bydrogel matrix with prolonged intrinsically antibacterial activity, especially when most of free EPL is released from the hydrogel. Overall, we provide a new insight for preparing highly effective antibacterial hydrogels.

关键词： Chitosan Poly(L-lysine) Hydrogel Self-assembly Antibacterial efficacy

Effect of land-use and land-cover change on nutrients in soil in Bashang area,China

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2003年第4期15卷 548-553页

作者： sheng Xue-bin SUN jian-zhong LIU Yun-xia Research Center for Eco Environmental Sciences Chinese Academy of SciencesBeijing 100085China.

The Bashang area is a water source area and ecological barrier zone for Beijing and Tianjin. The area is located at 200 km from Beijing and Tianjin and is a typical agriculture pasture interlacing zone, in which the eco environment is vulnerable and hence it is sensitive to environmental change. The area is relatively lagged in social and economic development, where the traditional cultivation mode is predominated in agriculture and animal husbandry, but the disturbance by human activity is relatively small. Therefore, in order to reveal the interrelation between eco environmental change in the area and environmental change in Beijing and Tianjin area, it is fairly necessary to study the effect of land use and land cover change on nutrients in soil in this area. According to the actual situation of changed land use for the limited time period, five series of changed land plots were selected and 4 samples were collected from each series for the study. The samples were collected from different soil forming levels at the same site in different time. Analysis of the collected samples indicates that in the process of change of land use and land cover, the nutrients in soil, such as organic matter, total N, total P, total K, and available N, P, K, and B, Mo, Mn, Zn, Cu, and Fe, have regularly changed. When the land had changed from grassland and non irrigated farmland into woodland, and from non irrigated farmland into irrigated field, the nutrients in soil totally increased. But there exists some exception, i.e. quick acting N, P, K, and some microelements have appeared to be inconsistent with the mentioned above regularity in some cases.

关键词： Bashang area land use change variation of nutrients

Numerical computations of the flow in a finite diverging channel

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第1期11卷 50-60页

作者： Zhao-sheng YU Xue-ming SHAO jian-zhong LIN State Key Laboratory of Fluid Power Transmission and Control Department of Mechanics Zhejiang University Hangzhou 31002 7 China

The flow in a finite diverging channel opening into a large space and resembling the experimental prototype of Putkaradze and Vorobieff (2006) was numerically investigated. The effects of the Reynolds number,initial condition,intersection angle,length of the wedge edges,and the outer boundary condition were examined. The numerical results showed that the flow in the wedge undergoes a change from symmetrical flow to unsymmetrical flow with a weak backflow,then a vortical (circulation) flow and finally an unsteady jet flow as the Reynolds number is increased for an intersection angle of 32° and a wedge edge of length 30 times the width of the inlet slit. For the unsteady flow,the jet attached to one side of the wedge constantly loses stability and rolls up into a mushroom-shaped vortex-pair near the outlet of the wedge. As the intersection angle is increased to 50°,a stable jet flow is observed as a new regime between the vortex and unsteady regimes. Both the intersection angle and the wedge length have negative effects on the stability of the flow,although the effect of the wedge length on the critical Reynolds number for the symmetry-breaking instability is not pronounced. The outer boundary condition was found not to affect the flow patterns inside the wedge significantly. At a certain Re regime above the onset of symmetry-breaking instability,the flows evolve into steady state very slowly except for the initial stage in the case of decreasing flow flux. Two different solutions can be observed within the normal observation time for the experiment,providing a possible explanation for the hysteresis phenomenon in the experiment.

关键词： Diverging channel Flow structures Bifurcation Fictitious domain

基于无线传感器网络的医学装备运行数据采集优化方法研究

在线全文

学校读者我要写书评

暂无评论

医疗卫生装备 2023年第9期44卷 83-87页

作者：陈克龙仲建生沈亚军如皋市人民医院医学装备科江苏如皋226500

目的:提出一种基于无线传感器网络的医学装备运行数据采集优化方法,以解决无线传感器网络采集医学装备数据丢包率高、时延长的问题。方法:先使用无线传感器网络获取医学装备运行的多维状态数据,基于蚁群优化算法对其实施融合;然后使用... 详细信息

目的:提出一种基于无线传感器网络的医学装备运行数据采集优化方法,以解决无线传感器网络采集医学装备数据丢包率高、时延长的问题。方法:先使用无线传感器网络获取医学装备运行的多维状态数据,基于蚁群优化算法对其实施融合;然后使用自适应步长果蝇算法优化路由策略,基于虚拟队列的拥塞控制算法从速率调整、主动丢包层面控制数据流拥塞。为了验证提出的医学装备数据采集优化方法的有效性及优越性,与基于无线传感器网络的医学装备数据采集方法、基于蚁群无线传感器网络的医学装备数据采集方法从丢包率、时延2个方面进行对比测试。结果:该方法在采样速率为80 Kibit/s时数据采集丢包率仅为8.6%,传感器节点数量为500个时平均时延约为0.115 s,远低于基于无线传感器网络的医学装备数据采集方法和基于蚁群无线传感器网络的医学装备数据采集方法。结论:该方法能够提高多维状态数据采集的效率、降低无线传感器网络数据流拥塞状况,为远程监测医学装备运行状态提供了参考。

关键词：无线传感器网络医学装备数据采集蚁群优化算法果蝇算法拥塞控制算法