Results 71 to 80 of about 1,210,792 (120)

[Associations between growth retardation and perinatal factors in preterm infants]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Liu F   +5 more
europepmc   +1 more source

[Expert consensus on the application of the hydrosurgery system in wound debridement (2026 edition)]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wound Repair Professional Committee of Chinese Medical Doctor Association.
europepmc   +1 more source

水土保持

open access: yes, 1958
水土保持是一项改造自然的巨大工作,综合性很强,必须采取农、林、牧、水等综合措施,统一规划,全面发展。为了改变山区的面貌和提高山区人民生活水平,根治河流水患和开发水利建设,减免自然灾害,就必须做好水土保持工作。包括:土壤侵蚀的种类、分区及其对国民经济的危害;雨滴与径流的冲刷作用及其测定方法,影响土壤侵蚀的因子与防止土壤侵蚀的基本办法及农业技术;梯田的效益、分类,设计区划原则与各论,拦水坝、蓄水沟、谷坊、淤地坝与引洪漫地等沟壑治理;保土植物抗旱植物的特征与栽培植物的分类;水土保持林的营造、沙荒造林 ...
方正三
core  

焦化生化出水电渗析脱盐研究

open access: yes, 2015
采用电渗析技术对焦化生化出水如曝气生物滤池出水及反渗透浓水进行脱盐,考察不同废水中的离子迁移、废水脱盐及离子交换膜污染情况。结果表明:2种焦化废水采用电渗析处理具有较好的脱盐效果,其中不同离子的迁移脱除与其浓度、离子半径等密切相关。膜电阻测试表明,不同焦化废水电渗析体系中不同离子交换膜的污染存在差别。扫描电镜和红外分析表明,曝气生物滤池出水主要由有机物造成阴离子交换膜污染,而反渗透浓水主要在电渗析浓室侧的膜表面形成颗粒状的无机污染 ...
梁源   +5 more
core  

[Impact of preoperative therapeutic antibiotic use on pathogen detection rate in single-stage revision of chronic periprosthetic joint infection]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Cheng H   +8 more
europepmc   +1 more source

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