Results 101 to 110 of about 4,601 (149)

声悬浮反应器的设计与控制

open access: yes, 1995
介绍了作者为研究气固或气液体系单颗粒的物理和化学变化过程而研制的声悬浮反应器的设计和控制。该反应器除作为主体的单轴谐振式声悬浮装置外,还包括通过自动调节腔长,维持腔室谐振的谐振跟踪系统,与谐振跟踪系统同时作用,通过相对于窗口平移谐振腔室而使颗粒稳定悬浮在对准窗口位置的颗粒位置控制系统,CO_2激光加热系统,红外辐射测温系统,以及为实时控制颗粒温度和位置及采集颗粒图象的微机系统。文中详细叙述了谐振跟踪和颗粒位置控制系统,以及CO ...
曹竹友,刘书琴,李治民,刁以欣,潘东,罗冰
core  

一种Cu-Cr 合金表面纳米结构的制备方法

open access: yes, 2019
本发明提供一种Cu‑Cr合金表面纳米结构的制备方法,包括如下步骤:选取Cr粒子尺寸在70~150um的Cu‑Cr合金基材,对其表面进行打磨和清洁;然后放置工作台上;设置激光原位设备的表面处理工艺参数,同时将激光光斑尺寸设定为20~100μm,然后对Cu‑Cr合金基材工作面进行激光表面自动处理;打开红外测温仪,测量激光处理Cu‑Cr合金基材表面时表面的温度,并通过控温夹具将Cu‑Cr合金基材表面温度控制在300~1000K之间。本发明采用与Cr粒子同径大小的激光光斑,当施加在合金表面时 ...
张犁天, 虞钢, 郑彩云
core  

[Defect modification of calcium silicate and its application in oral bacteriostasis and tooth remineralization]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Hu Y   +6 more
europepmc   +1 more source

[Functional characterization of double-negative T cells isolated from leukoreduction filter residues]. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban
Xiang Z   +6 more
europepmc   +1 more source

[Effect of interleukin-33 on glucocorticoid-induced osteonecrosis of the femoral head in mice]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li H   +7 more
europepmc   +1 more source

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

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song W   +13 more
europepmc   +1 more source

[Exploration of Different Methods for Constructing Animal Models of Melasma in Plateau Regions]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Danzengdeqiong   +8 more
europepmc   +1 more source

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