, 2009 利用室内模拟试验系统,对塔克拉玛干沙漠腹地风沙土在滴灌条件下的水分入渗与水分再分布过程中湿润锋的运动规律进行了模拟试验研究。根据模拟试验描述了风沙土在滴灌条件下水分入渗与再分布情况下湿润体的形状变化,研究了在水平方向上与垂直方向上风沙土的湿润锋推进规律及运动特征,揭示了随着累计入渗量的增加,湿润锋推进过程在入渗初期速率较大,逐渐成减小趋势,并最终达到稳定入渗状态;在土壤水分再分布过程中土壤湿润锋面不断向外部推移,最后达到相对稳定;对风沙土水分入渗及再分布过程中其湿润锋的推进距离与时间做了函数关系拟合 ...
王永东 +5 more
core
[Surgical management and clinical outcomes of repair for anterior talofibular ligament injury at talar attachment]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZheng K, Zhang Y, Yang H, Zhang C, Li Q.
europepmc +1 more source
脉冲型风洞是开展高超声速飞行器研制和气动热力学研究的重要试验设备。本文基于激波风洞和Ludwieg管风洞组合运行原理，突破了高温管外静态加热技术、高温高压气体隔离技术、大口径高温膜片设计技术等系列关键技术，设计建设了FL-63脉冲型组合式宽马赫数风洞，设计马赫数范围3.0～10.0，采用双模式组合运行模式，中低马赫数段（Ma 3.0～4.5）采用Ludwieg管风洞运行模式，最高温度可达900K，可复现飞行高度的总焓和总压，有效运行时间大于150ms；高马赫数段（Ma5.0～10.0 ...
刘中臣 +5 more
core +1 more source
[Adaptive weighted fuzzy iterative learning control strategy for functional electrical stimulation integrating guiding-side surface electromyogram threshold gating and dynamic frequency adjustment]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu S +6 more
europepmc +1 more source
Gaoya dianqi为了探索适合特高压GIL设备的现场交接验收及机械缺陷检测方法，文中对传统GIL设备交接验收时的交流耐压试验、投运前绝缘性能考核试验及局部放电试验进行了改进，采用与振动检测法相结合的方式。在此基础上研制了GIL综合试验与机械缺陷检测分析平台，并融合了出厂试验数据、历史运行数据、常规检测数据及改进后的交接试验数据进行多源多参量分析。解决了传统方法无法判别GIL设备微小机械缺陷的问题，使运维人员能够更加全面的掌握GIL设备的状态。现场应用实例表明，该平台能切实提升特高压GIL设备的现场交接验收效率及规范性 ...
汤会增 +5 more
doaj
[Expression patterns of fecal iron metabolism-related proteins in infants with food allergy]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZhou ZB, Zhang J, Li ZL.
europepmc +1 more source
[Effects of exergame combined with elastic band resistance training on exercise self-efficacy and physical activity levels in older adults with cognitive frailty: A mixed-methods study]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanNing H +7 more
europepmc +1 more source
[Isokinetic analysis of muscle strength recovery after fixed-bearing unicompartmental knee arthroplasty in patients with anterior cruciate ligament deficiency]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhang M, Liang T, Hu G, Fan X, Dai S.
europepmc +1 more source
[Research progress in diagnosis and treatment of multiple ligament knee injuries]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiXie H +11 more
europepmc +1 more source
[Clinical analysis of nusinersen for spinal muscular atrophy types 2 and 3 in children]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiDuan HL +6 more
europepmc +1 more source