Results 121 to 130 of about 1,697 (200)

[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]

Se Pu
Xue WY, Ke D, Zhang X, Zhou XD, Yang RN, Chao QC, Chen ML, Meng H, Yang T.   +8 more
europepmc   +1 more source

[Effectiveness of innervated medial plantar flap for reconstruction of soft tissue defects following foot tumor resection]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang W, Guo L, Hao Y, Wang L, Zhang C, Wang Y, Huang J, Zeng A, Long X.   +8 more
europepmc   +1 more source

Roles of m6A modification in neurological diseases. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Zhang Y, Zhang S, Shi M, Li M, Zeng J, He J.   +5 more
europepmc   +1 more source

氧化亚铁硫杆菌耦合砷黄铁矿还原浸出软锰矿

, 2015
将氧化亚铁硫杆菌(T.f)用于砷黄铁矿与软锰矿共同浸出,设置无菌体系作为对照,提出有氧和无氧条件下Fe As S-Mn O2的反应模型。研究结果表明:氧化亚铁硫杆菌对砷黄铁矿还原浸出软锰矿具有明显的催化作用,在砷黄铁矿与软锰矿的质量比为1:3.6、反应p H为1.8的最优条件下,有菌体系下锰的浸出率达99%,后续金的氰化浸出率达95%以上;Mn2+会抑制细菌的生长,当ρ(Mn2+)≥30 g/L时,Mn2+对细菌有致死作用;从软锰矿与砷黄铁矿的循环伏安曲线可看出两矿均有明显的氧化还原峰 ...
冯雅丽, 程玉龙, 滕青, 杨志超, 李浩然   +4 more
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[A review of research progress in integrated traditional Chinese and Western Medicine for liver diseases]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Zhang Q, Tian B, Shan C, Cao ZH, Xu CJ, Hu ZJ, Qi XL.   +6 more
europepmc   +1 more source

陆地水环境中砷的迁移转化

, 2015
由于自然和人为活动,已有大量的砷进入地表和地下水系之中,在一些地区造成严重的水砷污染问题,威胁生态系统安全和人类健康。砷的毒性与砷的存在形态与价态密切相关,研究其在环境中的迁移转化规律是有效降低砷的生态与健康风险的科学基础。本文以水环境为对象,就砷的性质及毒性,水环境中砷的来源、形态分布及迁移转化研究进展进行综述,重点围绕沉积物-水界面砷的迁移转化规律进行展开;对砷在环境中迁移转化的影响因素,包括Eh-p H、水合金属氧化物、有机质、微生物和粘土矿物等进行系统阐述 ...
杨芬, 朱晓东, 韦朝阳
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Pathogenesis and preventions of denture stomatitis. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023
Yang F, Yang Y, Lin M, He X, Yang Y.
europepmc   +1 more source

陕南石煤砷的赋存形态研究

, 2008
研究石煤砷的赋存形态,有助于评价石煤砷向环境中释放的程度和能力,本文利用连续化学浸提法对陕南石煤砷进行连续浸提,并以贵州兴仁地区无烟煤进行对照.结果表明,石煤砷主要以硫化物结合态存在 ...
唐磊, 虞江萍, 季宏兵
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[Clinical characteristics and treatment efficacy of newly diagnosed acute leukemia in the plateau]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
He QY, Lai AL, Zhang A, Wang LN, Gesangquzhen, Pingcuozhuoga, Ciren, Chen XM, Yixilamu, Qiu SW, Wei H, Wang JX, Baimayangjin, Zhang GJ.   +13 more
europepmc   +1 more source

对砷化镓太阳电池帽层进行选择性腐蚀的化学腐蚀液

本发明公开了一种对砷化镓太阳电池帽层进行选择性腐蚀的化学腐蚀液，该化学腐蚀液的配比为1g固体柠檬酸与3～4ml的双氧水，实现了对Al组分为0.8～0.9的砷化镓太阳电池帽层Al0.8～0.9GaAs/GaAs的选择性腐蚀。本发明提供的这种对砷化镓太阳电池帽层进行选择性腐蚀的化学腐蚀液，具有高的选择性腐蚀，能够实现GaAs太阳电池帽层选择腐蚀的目的，并且腐蚀液配制方便 ...
杨富华, 王晓东, 李越强, 刘雯, 陈燕凌   +4 more
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