[Research progress on the application of ultrasound technology in the diagnosis and treatment of lymphedema]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiTang ZY, Liu R, Deng CL.
europepmc +1 more source
Study on Scouring Experiment of Regulating Runoff in Grassland Slope
, 2005 通过坡面放水模拟径流冲刷试验,研究了不同放水流量下草地减水减沙效应,并从起流历时、径流流速、径流深度等方面分析了草地调控水沙的机理。结果表明:(1)草地具有显著的减水减沙效应,平均径流系数较对照减少28.3%,输沙率较对照减少78.4%。(2)裸地与草地坡面产流规律一致,裸地土壤坡面的输沙率呈先增后减再增的变化趋势,而草地坡面的输沙率呈先增后减然后逐渐趋于稳定。(3)草地能将坡面径流起流历时推迟3倍以上,可将径流流速减小40%,从而使草地坡面的径流入渗率明显增加,使径流的冲刷能力和输沙能力迅速下降。(4)
冯浩, 吴普特, 吴淑芳, 李敏
core
[Research advances on hepatic encephalopathy following transjugular intrahepatic portosystemic shunt]. [PDF]
Zhonghua Gan Zang Bing Za ZhiYe JJ, Pan YL, Wang J, Lyu Y.
europepmc +1 more source
[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis]. [PDF]
Zhonghua Gan Zang Bing Za ZhiYan XZ +7 more
europepmc +1 more source
, 2011 针对京津水源区传统水土流失治理指导思想和治理模式只注重治理区生态经济效益,忽视减沙同时大量减水加剧上下游用水矛盾的问题,以承德市丰宁县达袋沟小流域不同治理措施定位试验结果,结合典型治理区坡面措施调查,重点研究坡面治理措施的水沙环境效应。结果表明:坡耕地与人工草地的土壤侵蚀模数大大超过北方土石山区的容许土壤流失量;天然草地较乔木林和灌木林具有较高的年径流量和径流系数;传统鱼鳞坑整地造林和鱼鳞坑加竹节壕整地造林措施拦沙、减流效应显著;中度、轻度退化天然草地封育措施下阴坡、阳坡植被覆盖率年均可提高1.63 ...
周伟 +4 more
core
[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]
Se PuJiao RW +9 more
europepmc +1 more source
Analysis on evolution law of meteorological and hydrological drought and wetting
, 2012 降水是径流的基本来源,分析极端旱涝条件下降水与径流之间演变规律的异步性,可有效表征径流丰枯变化对人类活动的响应。基于渭河流域降水、径流资料,采用泰森多边形法计算渭河流域面降水量及12个月标准化降水指数(SPI12),对比典型频率下SPI12的空间分布特征及其对径流系数的影响;采用经验正交函数和时间序列分析法挖掘SPI12和年径流量的演变规律,对比演变规律的同步及异步变化特征。结果表明:在25%、50%、75%频率下,流域面降水量分别为582.5 mm、518.6 mm、467.5 mm ...
王飞, 白桦, 穆兴民, 高鹏
core
潜在蒸散发公式对汉江流域径流模拟结果的影响 Impact of Potential Evapotranspiration on Runoff Simulation in Hanjiang Basin
, 2012 立华 熊
semanticscholar +1 more source
[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHan G, Sun Z, Tang X.
europepmc +1 more source