Results 41 to 50 of about 126 (89)
黄河三角洲位于山东省东北部的黄河入海口,北纬37°20′—38°10′,东经118°17:—119°10′。是百年来黄河水携带泥沙淤积而成的冲积平原,总面积5400平方公里。这一带沟渠河汊纵横交错,水库池沼星罗棋布,土层深厚,林木杂草繁茂,水源充足,气候适宜,环境条件好,人为干扰少,因此这里集结了丰富的野生动物。据报道(纪加义等,1987),白枕鹤在山东是旅鸟 ...
王克山 +5 more
doaj
[Research progress on lyophilization for pretreatment of emerging organic contaminants in environmental samples]. [PDF]
Zhang Y, Guo S, Sun Q.
europepmc +1 more source
AnnAGNPS是一个基于连续事件、流域尺度的分布式农业非点源污染模型,用来模拟流域地表径流、泥沙与化学物质迁移,进而评价流域内农业管理措施对流域水文和水质的响应。构建完善的数据库是模型合理应用的前提条件,以位于长江三峡库区的大宁河沟流域为例,应用3S(GIS,RS和GPS)技术,结合实地调查,建立了AnnAGNPS模型数据库,评价了气候、地形、土壤、土地利用和作物等相关参数的确定,重点分析了模拟单元划分、土地利用数据库和土壤相关参数等因子,为大宁河流域侵蚀产沙和农业非点源污染模拟研究提供了基础数据平台,
花利忠 +4 more
doaj
[Expert recommendations on homogenization management of the diagnosis and treatment of rare diseases in children]. [PDF]
Expert Group on Homogeneous Management Model for Diagnosis and Treatment of Rare Diseases in Children.
europepmc +1 more source
[Solid phase microextraction of benzenes in river water by pomelo peel biochar]. [PDF]
Chen J +5 more
europepmc +1 more source
Effect of protein kinase D inhibitor CRT0066101 on the cell migration of salivary adenoid cystic carcinoma. [PDF]
Chen J, Die L, Chen H, Zhang P.
europepmc +1 more source
[目的] 冰川融水输沙不仅可以反映冰川侵蚀速率,而且是下游河流泥沙的重要来源之一,因此,认识青藏高原地区冰川融水径流中悬移质和推移质动态输沙特征对于冰川地貌演化预测和下游防灾减灾工作具有十分重要的意义。[方法] 基于2023年8月11—24日七一冰川下游河道的水文泥沙实测数据,分别构建流量—水位、悬移质含沙量—流量和单宽推移质输沙率—水流剪切应力之间的相关关系,进而重建整个研究时段的流量、悬移质和推移质动态输沙过程。[结果] 七一冰川融水径流中悬移质含沙量和推移质输沙率受径流变化控制,日变化十分剧烈 ...
赵怡 +5 more
doaj
[Application and research status of bioactive glass in bone repair]. [PDF]
Huang Y +5 more
europepmc +1 more source
[Significance of histological assessment in drug-induced liver injury]. [PDF]
Jiang LN, Zhao JM.
europepmc +1 more source
[Research progress on targeted delivery of proteasome inhibitor nanoparticles for the treatment of multiple myeloma]. [PDF]
Lin YX, Jing DH, Mi JQ.
europepmc +1 more source

