Results 51 to 60 of about 637 (94)

[Diagnostic value of targeted next-generation sequencing for community-acquired respiratory virus infections in patients with hematological diseases]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Luo XY   +9 more
europepmc   +1 more source

黄土高原作物C因子新方法

open access: yesShuitu Baochi Xuebao
目的为探究不同作物覆盖与管理措施下坡面土壤流失率、作物覆盖与管理因子的响应机制,以便更精准地评价作物覆盖与管理措施对土壤侵蚀的抑制作用。方法以谷子为研究对象,采用人工模拟降雨,设置作物、有糙度作物、有结皮作物、裸露、有糙度、有结皮6个小区坡面条件,分别记作A1、A2、A3、B1、B2、B3。通过Matlab数值模拟得到SLR估算模型,结合降雨侵蚀力分布曲线计算不同C因子值。结果地表糙度、土壤结皮均能进一步减弱作物小区的水土流失,与作物小区相比,有糙度作物小区SLR平均减少21.00 ...
谢欣利   +4 more
doaj  

[<i>Poria cocos</i> polysaccharide alleviates cyclophosphamide-induced intestinal barrier dysfunction and inflammation in mice by modulating gut flora]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Zhang Y   +10 more
europepmc   +1 more source

降雨、汇流和坡度对黑土浅沟坡面侵蚀影响的试验研究

open access: yesShuitu Baochi Xuebao
[目的] 为研究降雨、汇流和坡度对浅沟侵蚀的影响,实施精确的水土保持措施。[方法] 通过室内模拟降雨和汇流试验,设计2个降雨强度(50,100 mm/h)和2个坡度(3°,7°),并在4种降雨强度和坡度组合下设置5个依次增加的汇流强度(15,30,45,60,75 L/min),分析降雨、汇流和坡度及其交互作用对浅沟坡面侵蚀的影响,明确浅沟侵蚀对坡面侵蚀的贡献。[结果] (1)坡度和汇流强度对浅沟坡面侵蚀的影响均大于降雨强度。当降雨强度由50 mm/h增加到100 mm/h时,3°和7 ...
耿华杰   +6 more
doaj  

[Case of tooth autotransplantation with robotic surgery assistance]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Liu Y   +6 more
europepmc   +1 more source

[Dynamic distribution and clearance of <sup>99m</sup>Tc-DTPA in brain extracellular space]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zou J   +12 more
europepmc   +1 more source

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