[Reliability-aware periodicity graph neural network for remote heart rate estimation]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHuang C, Wang Y.
europepmc +1 more source
, 2007 为探讨化学物质在土石混合介质中的运移过程和机理,采用饱和稳态流下的Cl-1混合置换试验,测定水流和溶质运移过程,分析土石混合介质的溶质穿透曲线特征及碎石组成和含量对运移过程的影响。选用CXTFIT2.1的平衡和物理非平衡对流弥散模型,对参数弥散系数D和滞留因子R进行反求。结果显示:不同土石比的D变异较大:0.258~22.31 cm2/h。R的波动范围为0.6~1.54;碎石含量影响土石介质的溶质运移过程表现为平均孔隙流速、弥散系数、弥散度均与土石比成负指数的幂函数关系 ...
王慧芳, 邵明安
core
[Multimodal assessment of lower limb muscle fatigue and variable stiffness impedance control method for exoskeletons]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLi R +7 more
europepmc +1 more source
, 2003 本文提出一种新方法讨论沙波和加载波之间的相位差。该方法把泥沙运动看成是整体运动，充分体现了土体对加载波的动态响应。把孔隙水压力这一关键物理量作为讨论相位的重要参数，得到一些定性结论 ...
林缅
core
[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
, 2012 超燃自由射流台是极重要的地面模拟试验平台，它提供模型飞行器的来流气流条件。气流参数的稳定性和空间分布特征反映了试验平台的性能优劣。特别在变马赫数运行时，急需对实际气流参数进行监测。然而由于缺少静温和组分浓度信息（无法确定气流比热比），常规的壁面静压和总压耙测量因此无法给出完整的气流参数信息。为解决这一难题，将可调谐二极管吸收光谱(TDLAS)系统首次用于超燃自由射流风洞诊断。根据喷管出口气流参数特征，选择适于低温测量的一对相邻吸收谱线(7182.2 cm-1 和7182.9 cm-1 ...
张新宇 +4 more
core
[Mechanisms of exercise-induced improvement in drug addiction via gut microbiota]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLiao S, Wang X, Zhang T, Luo J.
europepmc +1 more source
, 2005 用液固两相流体动力学的方法对离心研磨过程中磨料流的运动特征进行数值模拟，得出磨料流运动的动态结果，并与高速摄影实验结果进行对比，指出计算机数值模拟结果对研磨机的设计和研磨工艺参数的选择具有实际的指导意义。该方法经济简捷，可以代替大量的工艺实验实现对离心研磨技术参数的优化 ...
王浩程, 张德良, 张宏太, 方新
core
[Design and implementation of a multi-protocol fusion wireless access point for internet of medical things]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu B +6 more
europepmc +1 more source
[Effects of <i>Baduanjin</i>, bedside cycle ergometer and balloon-blowing training on pulmonary function recovery following thoracoscopic surgery for lung cancer: a randomized controlled trial]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhang J +6 more
europepmc +1 more source