Results 101 to 110 of about 189 (131)

初始含水率和降雨能量对黑土团聚体溅蚀特征的影响

open access: yesShuitu Baochi Xuebao
[目的] 为明晰降雨能量和初始含水率对土壤团聚体溅蚀过程机制的影响。[方法] 选取东北典型耕层黑土为研究对象,通过人工模拟降雨试验,探讨不同初始含水率、降雨能量和团聚体初始粒径的团粒溅蚀特征。[结果] (1)4种初始粒径黑土团聚体的溅蚀量均在初始含水率4%时最大,其中初始粒径<0.25 mm团聚体溅蚀量是相同降雨能量下各粒径团聚体溅蚀量的1.21~5.50倍。随初始含水率的增加各初始粒级团聚体溅蚀量呈减小趋势,而初始含水率>25%后则呈增大现象。(2 ...
张转敏, 王彬, 饶伟, 王文刚
doaj  

[Guideline for the diagnosis and treatment of common neonatal diseases in primary healthcare institutions: neonatal seizures (2025)]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Subspecialty Group of Neonatology   +4 more
europepmc   +1 more source

[Clinical features and ABCC2 genotypic analysis of an infant with Dubin-Johnson syndrome]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2019
Meng LL, Qiu JW, Lin WX, Song YZ.
europepmc   +1 more source

东北典型黑土区小流域黑土层厚度及影响因素

open access: yesShuitu Baochi Xuebao
[目的] 为掌握典型黑土区小流域黑土层厚度现状及其空间变化格局,实现小流域黑土层厚度动态监测。[方法] 研究选择典型黑土区黑龙江省嫩江市鹤山农场小流域,以100 m间距均匀布设样点,用土钻采集由地表到母质的原状土剖面土样,判断黑土层厚度,同时基于无人机航拍影像提取地形、土地利用等数据,分析小流域黑土层厚度及其影响因素。[结果] 在小流域295个样点中,黑土层厚度变化于0—160 cm,平均44.1 cm,"破皮黄"(黑土层厚度≤20 cm)占17.63%,薄层(<30 cm)占43.39%,中层(30 ...
刘若轩, 王志强, 谭玉萍
doaj  

[Study on the Relationship between the Inhalable Fine Particulate Matter of Xuanwei Coal Combustion and Lung Cancer]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2015
Yang J   +8 more
europepmc   +1 more source

[Late-onset hereditary hearing loss caused by TMPRSS3 compound heterozygous mutations]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wang Y   +5 more
europepmc   +1 more source

[Psychomotor retardation and intermitent convulsions for 8 months in an infant]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2016
Ding Y   +8 more
europepmc   +1 more source

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