Results 81 to 90 of about 283,369 (126)

一种ZSM5/ZSM11共结晶沸石的无胺合成方法

, 2011
本发明的目的在于提供一种ZSM5/ZSM11共结晶沸石的无胺合成方法，合成体系中无需添加任何有机模板剂，该方法操作工艺简单，环境友好，成本低廉，得到产物的晶化质量良好，具有广阔的应用前景。该方法以硅源、铝源、去离子水以及无机酸或无机碱为原料，初始原料的摩尔配比为：SiO2/Al2O3＝20-120、Na2O/Al2O3＝2.0-12.0、H2O/Al2O3＝600-4000，其中，无机酸和无机碱用于调变体系的碱度。反应初始原料混合物在自生压力和晶化温度150-200℃的水热条件下，晶化10-75h ...
徐龙伢, 刘盛林, 张玲, 王清遐, 朱向学, 谢素娟   +5 more
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[Antibacterial activity and mechanism of the antiparasitic drug resorantel against <i>Staphylococcus epidermidis</i>]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Guo S, Huang G, Xiao D, Lu L, Li M, Li Y, Wu Y.   +6 more
europepmc   +1 more source

两种结构GaN基太阳盲紫外探测器

, 2006
分别在金属有机化学汽相沉积（MOCVD）生长的i-Al0.33Ga0.67N／AlN／n-GaN和p-Al0.45Ga0．55N／i—Al0.45Ga0.55N／n＋-Al0.65Ga0.35N的异质结构上，成功研制了太阳盲区的肖特基型和PIN型紫外探测器。研究结果表明，Au与i—Al0.33Ga0.67N形成了较好的肖特基结，响应波长从250—290nm，峰值（286nm）响应率约为0．08A／W；PIN型紫外探测器的响应波长从230～275nm，峰值（246nm）响应率约为0．02A ...
陈俊, 何政, 李雪, 方家熊, 赵德刚, 龚海梅   +5 more
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[Dihydroartemisinin inhibits the progression of oral squamous cell carcinoma]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shan T, Liu J, Liu T, Sun D, Wang X, Liu Y.   +5 more
europepmc   +1 more source

Al-Si合金熔析结晶过程中界面稳定性与硅晶体生长的控制

, 2015
利用交变磁场与温度场耦合作用,通过控制Al-Si合金熔析结晶时硅晶体生长过程中固液界面的稳定性,解决硅熔析精炼过程中硅晶体与合金熔剂分离难的问题,分析了耦合物理场在结晶过程中的作用机理. 结果表明,硅铝合金熔体中硅含量越高,越难发生成分过冷现象,固液界面越稳定,有助于生成致密的块状硅晶体;坩埚内径由3 cm降至1 cm,熔体内温度场分布发生变化,固液界面曲率由16.7变为125,形成的硅晶体更致密,硅晶体与合金熔剂的分离效果增强,硅晶体区域所占比例由0.57减小至0.42;下拉速度越慢,固液界面越稳定 ...
王志, 陈杭, 孙丽媛, 池汝安, 杜冰, 靖青秀   +5 more
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[Screening of the anti-<i>Malassezia furfur</i> active fraction from <i>Rosa chinensis</i> Jacq. and study on its mechanism against seborrheic dermatitis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Guo Z, Xi X, Zhong X, Qiu F, Huang Z.
europepmc   +1 more source

[Native mass spectrometry and ultraviolet photodissociation reveal conformation-selectivity of zinc ion to α-synuclein]. [PDF]

Se Pu
Qin H, Xuan Y, Zhao H, Liu Z, Ding F, Wang F.   +5 more
europepmc   +1 more source

[Effect of porous surface structure on fatigue strength of 3D printed zirconia]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zhao J, Ding Q, Li W, Ma Q, Lan Y, Zhang L, Han J.   +6 more
europepmc   +1 more source

[Preparation of mesoporous covalent organic framework core-shell stationary phase and its application in the analysis of astragaloside Ⅳ content in <i>Astragalus</i>]. [PDF]

Se Pu
Zhao XY, Jin JY, Liu XJ, Yan LJ, Yang SY, Zhang ZW, Zhang LY, Wu RF.   +7 more
europepmc   +1 more source

[Effect of dephosphorylation of tumor metastasis suppressor gene <i>LASS2</i> on vacuolar ATPase activity and invasiveness of prostate cancer]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Liu Y, Lu M, Zhao X, Zhang K, Wu R, Mei F, Dai Z, You J, Pei F.   +8 more
europepmc   +1 more source