Results 91 to 100 of about 71,953 (162)

混凝-纳滤组合工艺处理印染整理废水

, 2018
以聚丙烯酰胺(PAM)为助凝剂,比较了4种絮凝剂对印染整理废水中的COD和浊度的去除效果,通过正交实验确定了优化混凝条件;并进一步采用纳滤膜NF270对混凝上清液进行处理,纳滤浓缩液再经混凝-纳滤在处理。结果表明,混凝优化条件,pH为7,聚合氯化铝(PAC)、PAM投加量分别为400、1.6 mg/L,在此条件下,废水中COD去除效果最好,去除率达88%以上。混凝后的上清液经纳滤膜处理,出水COD为33 mg/L;纳滤浓缩液再经混凝-纳滤再处理后,出水COD可降至30 mg/L,出水水质均满足GB/T ...
刘威, 杭晓风, 万印华
core  

方钢管超轻混凝土短柱轴压性能试验研究

Jianzhu Gangjiegou Jinzhan
对16个方钢管超轻混凝土短柱和8个空钢管短柱进行了轴压试验，以超轻混凝土强度和含钢率为变化参数，研究方钢管超轻混凝土短柱的破坏形态和受力性能。结果表明，随着超轻混凝土强度的降低，钢管对核心混凝土的约束效应越强；随着含钢率的增加，构件的承载力和变形能力提高，但当含钢率高于0.25时，超轻混凝土的存在对构件的承载力和变形能力已基本没有影响。基于叠加理论，提出了适用于方钢管超轻混凝土短柱承载力的计算公式。
刘志轩, 曲慧, 陈琦, 张威
doaj  

[Binary encryption comprehensive experiment based on agarose gel electrophoresis]. [PDF]

Se Pu
Duan JW, Ma L, Zhao Q, Wu QQ, Xin BY, Yang JH, Li Y, Wang QZ.   +7 more
europepmc   +1 more source

[Effects of polyvinyl alcohol-boric acid-based functionalized hydrogels on HSFs and HaCaT cells]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song W, Zhang C, Kong Y, He MC, Ren KH, Li KJ, Li Z, Yu BY, Tian F, Zhu M, Ju XY, Tian Y, Huang S, Niu ZW.   +13 more
europepmc   +1 more source

[Using activity-based protein profiling method to explore the antitumor targets of spiramycin derivatives]. [PDF]

Se Pu
Yang RY, Feng TZ, Pei SJ, Qi H, Piao HL.
europepmc   +1 more source

[Prognostic analysis of anticoagulation therapy in elderly patients with cardioembolic stroke]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng Q, Fan M, Guo H, Zhang H, Wang M, Wang S, Peng H, Wang X, Hou T, Qin X, Chen D, Li J, Wu Y, Wu T, Chen H, Hu Y.   +15 more
europepmc   +1 more source

[Tripeptide polymer-based cell-imprinted hydrogels for high-efficiency circulating tumor cell capture]. [PDF]

Se Pu
Sun W, Zhang Z, Zhao X, Chen J, Qing G.
europepmc   +1 more source

[Establishment of rabbit model of benign circumferential esophageal stricture]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng L, Huang Y, Yan X, Wang Y.
europepmc   +1 more source

电子辐照PVA/CMC共混水凝胶的成胶研究

, 2007
本试验利用电子辐照PVA/CMC共混水凝胶,通过外观透明度、凝胶分数、溶胀度和红外光谱分析,研究了样品中结构的变化与外观透明度、凝胶分数和溶胀度的关系,以及辐照剂量对样品中结构和性能的影响。结果表明,不同比例的PVA与相同比例的CMC组成的共混水凝胶,经电子辐照后呈现不同的宏观特性。辐照样品萃取后得到的凝胶比萃取前的混合凝胶拥有更强的吸水性,表明辐照PVA/CMC共混凝胶形成了网状结构凝胶。几种竞争反应导致不同辐照剂量下混合凝胶中凝胶含量随PVA含量的变化变得复杂。辐照后样品的红外光谱分析显示 ...
王志光, 宋银, 孙友梅, 马艺准, 张丽卿, 姚存峰   +5 more
core  

[Influence of porosity and Young's modulus of gelatin methacrylate anhydride hydrogels on the biological behavior of mouse bone marrow mesenchymal stem cells]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Kong Y, Tian F, Liu QH, Zhang C, Song W, Kong Y, Li Z, Jirigala E, Huang S.   +8 more
europepmc   +1 more source