Results 121 to 130 of about 358,776 (157)

基于全光谱分析的水质化学耗氧量在线监测技术

, 2012
针对水体中化学需氧量在线监测的迫切需求;设计了一种基于全光谱分析的水质化学耗氧量监测系统.该系统通过测量已知化学耗氧量的水质吸收光谱;利用最小二乘法建立吸光度与化学耗氧量的传输方程;针对待测水样;通过已建立的传输方程来反演水体化学耗氧量的浓度.通过模拟复杂水样进行化学耗氧量值测量;并将测量值与实验室结果进行比较;验证了该系统的可靠性.结果表明;该全光谱法水质监测系统不需要消耗任何试剂;无二次污染;测量准确度高、速度快;可广泛应用于水质化学耗氧量的实时 ...
冯巍巍, 张伟, 孙西艳, 李玲伟, 李未然, 陈令新, 吕颖, 付龙文, 赵广立   +8 more
core  

[Research progress of infrapatellar fat pad derived mesenchymal stem cells in treatment of osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang H, He H, Lu J, Wang Q.
europepmc   +1 more source

[Lactate induces gastric mucosal injury by promoting M1 polarization of macrophages <i>via</i> the cardio-gastric axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang Y, Jia Y, Yin G, Li S, Yang P.
europepmc   +1 more source

[Research advances on the targeted programmed cell death regulatory network for treatment of refractory diabetic wounds]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhang ZH, He WF.
europepmc   +1 more source

[Ultrasound-synergized targeted nanoparticles suppress proliferation, migration and invasion of hypoxic lung cancer cells <i>in vitro</i>]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Dong J, Guo J, Li D, DU Y.
europepmc   +1 more source

[The role and mechanism of chemokine network in promoting osteoarthritis progression by regulating synovial macrophage heterogeneity]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lin Y, Wu L, Chen Q, Shen B.
europepmc   +1 more source

运行与检修问答

Gaoya dianqi, 1990
【问】测多油断路器的介质损耗因数tgδ应注意什么? 【答】对多油断路器作介质损耗因数tgδ值测试的主要目的是判断其套管是否有严重受潮的现象,电容式套管远较纯瓷套管容易受潮,受了潮也较难处理,最重要的是其发展下去会导致严重的后果。但电容式套管本身远没有多油断路器内某些其它绝缘件那样容易受潮。因此,测试时要注意二点:一是要在断路器分闸状态下进行测试,以免掩盖问题的暴露 ...
doaj  

[<i>Jianpi Zishen</i> Formula improves renal damage in mice with systemic lupus erythematosus by inhibiting p53-MDM2 signaling axis-mediated ferroptosis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li Y, Huang C, Pang L, Zhu Z, Li M.
europepmc   +1 more source

[Ultrafine <i>Xiebai</i> powder alleviates lipopolysaccharide-induced acute lung injury in mice by suppressing ferroptosis and modulating the NF-κB/STAT3 signaling axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhu J, Shao N, Huang Z, Liu Y, Meng X, Liu Z, Sun Y, Dong J, Fan H.   +8 more
europepmc   +1 more source

[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Kang R, Yuan W, Zhu Y.
europepmc   +1 more source