Results 101 to 110 of about 49,766 (133)

一种便携式土壤呼吸测定气室

, 2008
 本发明公开了一种便携式土壤呼吸测定气室，由底座和测量室组成，底座固定于土壤中，测量室放置在底座上；测量室包括一个中空的壳体，壳体内的顶部中央安装有风扇，壳体内的顶部两侧设有与红外气体分析仪连通的通气嘴，壳体的底部外围有插入底座的环体；底座包括一个圆筒，圆筒的外围设有供测量室插入的水槽，圆筒的底部沿外壁向内径方向制成锥形尖端。本发明的便携式土壤呼吸测定气室，采用底座和测量室分离设置，能够为红外气体分析仪提供分析气体源，从而计算土壤呼吸速率 ...
樊军,齐丽彬
core  

[Toxicity of lunar dust simulant exposure via the digestive system: Microbiota dysbiosis and multi-organ injury]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Chen Y, Liu Y, He S, Gong X, Cheng Q, Chen Y, Hu X, Wang Z, Xie H.   +8 more
europepmc   +1 more source

[Determination of four fungicides in water by magnetic solid phase extraction-ultrahigh performance liquid chromatography-tandem mass spectrometry using covalent organic framework material]. [PDF]

Se Pu, 2022
Wang P, Ma J, Li S, Cheng J, Zou Z.
europepmc   +1 more source

基于RS/GIS的玛纳斯河流域土壤空间分布的分形与分维

, 2010
分形理论在描述不规则几何图形方面的优越性十分显著。基于分形理论,对玛纳斯河流域土壤空间分布的分形性质进行了定量研究,在建立了玛纳斯河流域各土壤类型斑块周长-面积定量关系的基础上,进一步计算出各土壤类型在空间分布上的分维数与稳定性指数,得出以下结论:玛纳斯河流域各土壤类型斑块的周长-面积双对数关系显著,即玛纳斯河流域土壤空间分形结构客观存在。各土壤类型图斑的分维数存在差异,分维数最大的是草甸盐土,为1.7091,最小的是灌耕石灰性草甸土,为1.0524,分维数空间分布的总体趋势是由南向北逐渐变小 ...
刘世薇, 安红燕, 徐海量, 乔木, 禹朴家, 史薇   +5 more
core  

[Research progress on bioartificial liver]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Jiang Q, Su YS, Cao XY, Zhang HN, Li LJ.
europepmc   +1 more source

[Preparation of porous boron nitride-doped polypyrrole-2,3,3-trimethylindole solid-phase microextraction coating for polycyclic aromatic hydrocarbon detection]. [PDF]

Se Pu, 2023
DU J, Sun PC, Zhang ML, Lian ZT, Yuan FG, Wang G.   +5 more
europepmc   +1 more source

[Value of C-peptide-based insulin resistance index for evaluating correlation between insulin resistance and serum uric acid level in individuals undergoing health examination]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao, 2023
Fang F, Wang N, Liu X, Wang W, Sun J, Li H, Sun B, Gu Z, Fu X, Yan S.   +9 more
europepmc   +1 more source

[Clinical analysis of donor-purified CD34(+) stem cell boost in 11 patients with poor hematopoietic reconstruction after haploid hematopoietic stem cell transplantation for aplastic anemia]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
He Y, Xu ZL, Chen H, Chen Y, Han TT, Zhang YY, Lyu M, Mo XD, Yan CH, Wang Y, Sun YQ, Zhang XH, Huang XJ, Xu LP.   +13 more
europepmc   +1 more source

[Determination of three new herbicide residues in soil, sediment and water by liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
He HM, Xu LY, Zhang CP, Fang N, Jiang JH, Wang XY, Yu JZ, Zhao XP.   +7 more
europepmc   +1 more source

[Research progress on poor response, resistance mechanisms, and influencing factors of immunotherapy for hepatocellular carcinoma]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Huang M, Zhang FN, Gong H, Liu CC, Zhao TT, He N.   +5 more
europepmc   +1 more source