Results 111 to 120 of about 1,157 (152)

我国南方丘陵区土壤耕作侵蚀的定量研究

Shuitu Baochi Xuebao, 2001
通过采用示踪法对四川丘陵区坡耕地的耕作试验研究 ,获得了土壤耕作位移和土壤耕作侵蚀的直接证据 ,确定了耕作侵蚀是四川丘陵区土壤流失的原因之一。试验结果指出 ,四川丘陵区单次耕作的土壤位移量为 43.70～ 6 4.47kg/ m;平均土壤耕作侵蚀速率为 6 5 .0 5～ 97.0 5 t/ hm2 .a。土壤耕作位移受地面坡度的影响十分明显 ,平均位移距离与坡度间呈显著正相关关系。耕作侵蚀速率主要取决于坡体长度 ,只有在坡体长度相同的条件下 ...
doaj  

[Bioactive substances delivery for bone repair via nanocomposites: advantages, mechanisms, and emerging trends]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma Y, Du Z, Wang J, Li X.
europepmc   +1 more source

[Research status of lower limb exoskeleton rehabilitation robot]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Li M, Li H, Yu H.
europepmc   +1 more source

A framework for subjective motion production: A construal approach with Mandarin evidence. [PDF]

PLoS One
Shan X, Luo Z, Xiao G, Liu B.
europepmc   +1 more source

[Expert consensus on monoclonal antibody immunoprophylaxis against respiratory syncytial virus in infants and young children in tropical and subtropical regions of China]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Subspecialty Group of Neonatology, Society of Pediatrics, Chinese Medical Association, Guangdong Medical Association, Editorial Board of Chinese Journal of Contemporary Pediatrics.   +4 more
europepmc   +1 more source

[Treatment strategy of carotid blowout syndrome after radiotherapy for nasopharyngeal carcinoma]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Li H, Shi Z, Zhang Q, Tong X, Shang Y, Wang X, Gao K, Feng G, Liu G, Zhai X.   +9 more
europepmc   +1 more source

[A case report of giant jugular foramen paraganglioma]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Guo D, Liu Y, Zhuang W, Han Z.
europepmc   +1 more source

[Benchmarking China's Top-Tier Medical Institutions Against Global Standards: A Quantitative Analysis of the Gap Using Internationally Recognized Metrics]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Yang G, Cui Y, Dai R, Zhang Q, Luo W.
europepmc   +1 more source

[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

[Overview and prospects of endoscopic skull base surgery]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wang D, Zhang H.
europepmc   +1 more source