Results 121 to 130 of about 1,030,423 (169)

一种质子交换膜燃料电池不锈钢双极板前处理方法

open access: yes, 2014
本发明涉及一种PEMFC不锈钢双极板前处理方法,将不锈钢双极板经过乙醇或丙酮和碱性溶液除油除污后,进行电化学抛光处理;碱性溶液组成为,NaOH 30-100g/L,Na3PO4·12H2O 10-50g/L,Na3CO320-70g/L,Na3SiO3·9H2O 3-10g/L;电化学抛光溶液组成为,H2SO4(98%)100-500mL/L,H3PO4(85%)300-800mL/L,甘油(10-50g/L)。经本发明方法处理后,不锈钢基体表面平整,缺陷明显减少 ...
邵志刚   +4 more
core  

[Effect and mechanism of astaxanthin on the aging of high glucose-treated human skin fibroblasts]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Tang LJ   +6 more
europepmc   +1 more source

Survey on natural language processing in medical image analysis. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Liu Z   +16 more
europepmc   +1 more source

CCD信号处理集成化方案

open access: yes, 2012
对比传统的CCD信号处理电
张伯珩, 白喆, 屈有山, 李爱玲
core  

Anesthetic management of a patient with closed tracheal transection. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Long S, Huang G, Guo Y, Huang Z, Yi H.
europepmc   +1 more source

[Application of Preschool Auditory Processing Assessment Scale in children with attention deficit hyperactivity disorder]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2023
Sun YY   +8 more
europepmc   +1 more source

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