Results 31 to 40 of about 88 (65)
Shuitu Baochi Xuebao, 2008 研究了喀斯特森林随降水流动的主要元素动态。结果表明:随降水流动的NO3-,NH4 ,K ,Ca2 ,Mg2 ,SO42-,Cl-,Na 浓度,在林隙、林内、树干茎流和溪流水中的月动态以夏季较低、冬季较高。沿着"大气→森林→集水区溪流水"的流动轨迹,部分离子浓度呈"富集"或"扩散"状态。按其空间分布式样可划分为:持续富集型,包括Ca2 和Mg2 ;地表富集型,包括K ,Na ,Cl-,NO3-和NH4 ;其它型,包括SO24-。黔中喀斯特山地每年随降水输入森林-土壤系统的N量为9.479~12.692 ...
许效天, 李广宇, 张喜, 宁伟伟
doaj
[Near-infrared targeted probe designed for intraoperative imaging of prostatic neurovascular bundles]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2023 Zhang ZY +12 more
europepmc +1 more source
Research progress on mechanism of Chinese Kaiqiao herbs in management of neuropathic pain. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2022 Wu X, Yu J, Tan B, Chen Z.
europepmc +1 more source
[Research advances of three-dimensional bioprinting technology in urinary system tissue engineering]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022 Fu Z, Xiao S, Fu W.
europepmc +1 more source
[Short-term exposure to gossypol causes reversible reproductive toxicity and nephrotoxicity in mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Wang H +5 more
europepmc +1 more source
Shuitu Baochi Xuebao, 2018 为探究中亚热带地区常绿阔叶林地的地表径流和侵蚀产沙的影响机制，于2016年和2017年的5—9月在天然降雨条件下，采用野外定位观测结合室内试验分析方法，得到磨盘山常绿阔叶林林外降雨和林内穿透雨及其雨滴特性数据，采用RDA排序及CANOCO的Forward分析筛选出主导环境影响因子。结果表明：（1）产沙量与林外降雨量和林内穿透雨量存在正相关关系。当径流量>0.064 mm时，研究区内形成的地表径流才开始携带泥沙；林冠层对降雨动能的缓冲作用在降雨强度小的情况下较明显。（2）林冠缓冲动能 ...
曹光秀, 王克勤, 赵洋毅, 段旭
doaj
[Hydrophilic interaction liquid chromatography for removal of pesticide residues in ginseng extracts]. [PDF]
Se Pu, 2021 Sun L +6 more
europepmc +1 more source
Facial nerve function training in patients with peripheral facial paralysis: an expert consensus. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2023 Chen Y +8 more
europepmc +1 more source
Progress on RNA-based therapeutics for genetic diseases. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Luo T, Huo C, Zhou T, Xie S.
europepmc +1 more source