Results 111 to 120 of about 12,063 (170)

黄土高原流域降雨侵蚀产沙过程机制及预报模型研究

, 2006
通过定位观测、理论分析与模拟、大规模实验示范，采用GIS、元素示踪技术与土壤侵蚀动力学方法，系统开展了水蚀动力过程及调控技术研究。（1）揭示了多尺度水蚀动力机制，建立了水蚀动力模型；阐明了植物根系提高土壤抗冲性机理，分析了植被覆盖及空间配置的水土保持有效性机制，揭示了强化降雨径流入渗的调控原理。（2）提出土壤抗冲性、水沙响应以及流域地貌量化方法，建立了水蚀预报模型，预测了黄土高原大规模水土保持生态修复的环境演变和黄河中游水沙变化趋势。（3）建立了水土流失调控技术体系 ...
崔灵周, 朱永清, 李勉, 李占斌, 李鹏, 游珍, 王占礼, 王文龙, 郑书彦, 韩建刚, 鲁克新   +10 more
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[Conversion therapy for hepatoid adenocarcinoma of the stomach: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li J, Chen L, Tang J, Wu Y, Wang A.
europepmc   +1 more source

Benefits of Different Age Forest Vegetation on Soil Fertilization and Amelioration

, 2001
在黄土丘陵沟壑区森林植被能够明显改善生态环境 ,防止土地退化 ,提高土壤中有机质、速效氮和速效钾的含量 ,降低土壤pH和容重 ;快速显著地增加土体中 >0 .2 5mm水稳性团聚体和 >5 0 μm微团粒的数量 ,使土壤结构改善 ,协调供应养分和水分的能力提高 ;能促进黏粒形成 ,坚实度增加 ,土壤的抗蚀性和抗冲性提高 ,有效地减少水土流失。植被对土壤的培肥改良是一种正向持续反馈机制 ,时间越长 ...
孟庆香, 安韶山, 常庆瑞, 李壁成, 高亚军   +4 more
core  

[Clinical Manifestations of Childhood Systemic Lupus Erythematosus-associated Acute Pancreatitis and Evaluation of the Efficacy of Plasma Exchange Combined With Glucocorticoids]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xiong L, Guo H.
europepmc   +1 more source

[The influence of different collagenases on the analysis of immune cells in salivary glands of mice with chronic graft-versus-host disease]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Hu ZY, Song QX, Yang SJ, Wei J, Zhang X.
europepmc   +1 more source

[<i>Yiqi Jiedu</i> Formula regulates immune microenvironment of liver cancer in mice by inhibiting overactivation of NF-κB signaling pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang Z, Liu L, Shi M, Hou Y, Dong L, Zhang G.   +5 more
europepmc   +1 more source

[Dihydroartemisinin inhibits the progression of oral squamous cell carcinoma]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shan T, Liu J, Liu T, Sun D, Wang X, Liu Y.   +5 more
europepmc   +1 more source

[Clinical effects of antibiotic bone cement and VSD combined with free chimeric anterolateral thigh perforator myocutaneous flaps for sequential treatment of diabetic calcaneal osteomyelitis wounds]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhong YH, Cui X, Zhou ST, Guo L, Huang MT, He ZY, Yang HL, Zeng JZ, Liang PF, Zhang PH, Zhou J.   +10 more
europepmc   +1 more source

[Gut-vascular axis in Kawasaki disease: short-chain fatty acid-mediated immune regulation and therapeutic targets]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wang SD, Liu F.
europepmc   +1 more source

[Mechanism of silibinin in renal injury induced by periodontitis in mice]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Hu M, Shang Y, Che Z, Liu X, Deng Y, Yu W.   +5 more
europepmc   +1 more source