Results 91 to 100 of about 702 (144)

[Thoughts and Prospects on Precision Control and Intelligent Positioning Robotic Systems Applied in Nasojejunal Feeding Tube Placement]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Qiu Y, Hong R, Xiang G, Hong D, Zhang Y, Li K, Qian H, Dian S, Li K, Pu W.   +9 more
europepmc   +1 more source

Discussion on Mechanism of Loess Erosion

, 1997
以黄土高原为例，分析了黄土抗冲性和坡面径流，并根据多年野外调查资料，探讨了黄士侵蚀机理。针对黄土抗冲性极其微弱，黄土高原的年径流深并不大，以及严重的土壤侵蚀由少数几次大暴雨所引起等情况 ...
周佩华
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[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

[Technical standards for coblation therapy in pediatric adenoid and tonsil hypertrophy]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Zhang Q, Wang L, Zhang N.
europepmc   +1 more source

地下供水条件下雨强对土壤养分流失的影响

, 2007
为揭示土壤养分随径流流失的内在机制,采取地下供水方式使土壤入渗强度降低和人工降雨的方法,进行了雨强对土壤养分流失影响的试验研究。结果表明:供试土壤中养分的流失量随降雨强度的增大而增大,而在土壤内部养分迁移量很小;幂函数模型与指数函数模型相比 ...
孔刚, 樊军, 王全九
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[A single-center study on the clinical characteristics of 15 cases of large granular lymphocytic leukemia]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Xie X, Li HL, Wang Q, Li J, Liu L, Wang L, Luo XH.   +6 more
europepmc   +1 more source

Study on Erosion Control Measures of Slopped Roads in Gullied Rolling Loess Area of the Loess Plateau

, 2001
山坡道路连接农田、果园 ,对山区经济发展有重要作用。黄土高原山坡道路存在严重的水土流失 ,侵蚀方式主要有沟蚀、泻溜、崩塌、陷穴、悬沟侵蚀与滑坡等。山坡道路网应按照小流域综合治理规划合理布置 ,其主要防护措施 :①修筑梯田 ,防止坡面径流冲刷道路 ;②将路面整修成拱形以分散径流 ;③在道路内侧修蓄水窑窖 ,拦蓄径流 ;④路面及边坡栽植草灌 ...
周红, 杨岗民, 郑世清
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[Application Value of Pancreatic Duct-to-Jejunum Stent-Bridging Internal Drainage in Robotic Central Pancreatectomy]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zhang E, Wu J, Chen M, Ma B, Wu H, Xu Y, Cui H, Zhao Z.   +7 more
europepmc   +1 more source

[Effects of age and gender on posterior cranial fossa linear volume and cerebellar tonsil position in normal populations]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021
Yang S, Tang C, Li H, Zhong D.
europepmc   +1 more source

Study on the Changeable Process of Soil Erosion Spatial Distribution Characteristics on the Slope Surface

, 1997
采用稀土元素（REE）示踪法对坡面侵蚀垂直分布特征动态变化过程进行了初步研究。结果表明．坡面侵蚀垂直分布特征在次降雨过程呈动态变化趋势．尽管在产流过程中相对侵蚀量的变化趋势基本相似．但比值差异很大，这主要取决于坡面径流的强度。此外、次降雨侵蚀产沙的垂直分布特征与侵蚀过程中产沙的分布特征差异亦很大 ...
刘普灵, 吴普特, 周佩华, 武春龙   +3 more
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