Results 121 to 130 of about 1,135,151 (172)

[Design of a dynamic measurement system for Bl factor spatial distribution of resonant blood viscoelastic sensor]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Qian J, Sun H, Wang B.
europepmc   +1 more source

黄土高原沟壑区小流域坡地土壤养分分布特征

, 2007
坡地土壤质量退化以及生产力下降是限制坡地植被恢复的主要因素,而坡地土壤质量和生产力在很大程度上取决于土壤养分状况。通过野外调查和室内分析相结合的方法,研究了黄土高原沟壑区坡地土壤养分分布特征,结果表明坡地土壤主要养分含量均随土壤层次的加深而降低,其中以有机碳和全氮降低最多,而硝、铵态氮和全磷降低较少;坡地不同土层土壤有机碳和全氮表现出较大的变异性,土壤铵态氮和全磷的变异较小。0.005~0.05mm土壤颗粒含量随土层加深而增加,0.05~1mm颗粒含量随土层加深而降低;<0 ...
魏孝荣, 邵明安
core  

[Distribution characteristics of traditional Chinese medicine syndromes in patients with hepatolenticular degeneration across all age groups]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Hua D, Sun L, Xuan Q, Xiang S, Shi S, Yang W, Wang H.   +6 more
europepmc   +1 more source

[Regional distribution differences and influencing factors of primary healthcare institutions in China]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Ni P, Wang J, Shi L, Xu L.
europepmc   +1 more source

Spatial distribution of stroke readmission within 30 days and the influencing factors in Hunan Province. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Lai J, Cheng J, Wang S, Shi J, Zhong W, Shi Q, Wang P, Deng J, Tong Z, Xiao G.   +9 more
europepmc   +1 more source

[Exposure Pathways of Polystyrene Nanoplastics Mediate Their Cellular Distribution and Toxicity]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Li J, Bao Q, Li Z, Yao Y, Wu D, Peng L, Liu Z, Li L, Zhang L.   +8 more
europepmc   +1 more source

[Finite-element simulation and experimental investigation of nanosecond transcranial pulsed electric field propagation and distribution in a three-dimensional brain model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chen Y, Yao C, Yan F, Xiao P, Lu X.
europepmc   +1 more source

[Genetic distribution in Chinese patients with hereditary peripheral neuropathy]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2022
Liu XX, Duan XH, Zhang S, Sun AP, Zhang YS, Fan DS.   +5 more
europepmc   +1 more source

快速床气体速度径向分布的研究

, 1990
本文在实验的基础上，考虑快速流化床与固定床在流动的特性上的差异，提出用局部固相阻力当量直径对非均匀阻力固定床气体速度径向分布模型进行修正，从而建立了对快速流化床稀相段较为适用的气速分布模型。本文对用于两相流气、固局部速度的几种测试技术进行了实验分析与比较，摸索出一种能较好地应用于快速流化床稀相段局部气体速度测试的方法。并用此方法在快速流化床稀相段进行气体速度径向分布的测试，对部分实验现象进行了分析。并且用实验数据对气速分布修正模型进行验证；同时，对模型进行了分析讨论 ...
张斌
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[Elevation of red blood cell distribution width to hematocrit ratio is associated with increased 28-day all-cause mortality in septic patients]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang Z, Wu J, Wang H, Xu Y, Jiang C, Zhou L.   +5 more
europepmc   +1 more source