中国科学院机构知识库网格系统: 检索

Design and construction of hierarchical TiO2 nanorod arrays by combining layer-by-layer and hydrothermal crystallization techniques for electrochromic application 期刊论文 OAI收割
APPLIED SURFACE SCIENCE, 2018, 卷号: 440, 页码: 217, 223
作者: Chen, Yongbo; Li, Xiaomin; Bi, Zhijie; He, Xiaoli; Li, Guanjie

|

收藏 | 浏览/下载：35/0 | 提交时间：2018/12/28

TiO2 nanorod arrays Hierarchical structure Layer-by-layer method Hydrothermal crystallization Electrochromism

烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文 OAI收割
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者: 姜明; 赵国强; 李兆冉; 盛彦清

|

收藏 | 浏览/下载：27/0 | 提交时间：2020/07/08

还原性无机硫活性铁深层柱状沉积物硫化度矿化度 Reduced inorganic sulfur Reactive iron Deep core sediments Degree of pyritization Degree of sulfidity The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.

Composite anion exchange membrane made by layer-by-layer method for selective ion separation and water migration control 期刊论文 OAI收割
SEPARATION AND PURIFICATION TECHNOLOGY, 2017, 卷号: 192, 页码: 278-286
作者: Yufei Zhang; Ru Liu; Qiaolin Lang; Ming Tan; Yang Zhang

|

收藏 | 浏览/下载：51/0 | 提交时间：2018/01/04

Electrodialysis Layer-by-layer Method Organic Ion separatIon Water Permeance Selectivity

The porous membrane with tunable performance for vanadium flow battery: The effect of charge 期刊论文 OAI收割
JOURNAL OF POWER SOURCES, 2017, 卷号: 342, 页码: 327-334
作者: Yuan, Zhizhang; Lu, Wenjing; Li, Xianfeng; Zhang, Huamin

|

收藏 | 浏览/下载：26/0 | 提交时间：2019/06/20

Vanadium Flow Battery Porous Membrane Solvent-responsive Layer-by-layer (Sr-lbl) Assemble Method Surface Charge

Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China
作者: Liu Y.; Liu Y.; Wang L.; Wang L.; Wang L.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1 2 and 3) in one period QW depth barrier width the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications Switzerland.

Influence of polyanion type and cationic counter ion on the SRNF performance of polyelectrolyte membranes 期刊论文 OAI收割
journal of membrane science, 2012, 卷号: 403, 期号: 403—404, 页码: 216-226
作者: Ahmadiannamini, Pejman; Li, Xianfeng; Goyens, Ward; Meesschaert, Boudewijn; Vanderlinden, Willem

收藏 | 浏览/下载：27/0 | 提交时间：2013/10/11

Membrane Polyelectrolyte complexes (PECs) SRNF Counterion Layer-by-layer method

Multilayered polyelectrolyte complex based solvent resistant nanofiltration membranes prepared from weak polyacids 期刊论文 OAI收割
journal of membrane science, 2012, 卷号: 394, 期号: 22, 页码: 98-106
作者: Ahmadiannamini, Pejman; Li, Xianfeng; Goyens, Ward; Joseph, Nithya; Meesschaert, Boudewijn

收藏 | 浏览/下载：29/0 | 提交时间：2013/10/11

Membrane Polyelectrolyte complexes SRNF Membrane morphology Layer-by-layer method

An Anticoagulant Activity System Using Nanoengineered Autofluorescent Heparin Nanotubes 期刊论文 OAI收割
CHEMISTRY-AN ASIAN JOURNAL, 2012, 卷号: 7, 期号: 1, 页码: 127-132
作者: Cui, Wei; Cui, Yue; Zhu, Pengli; Zhao, Jie; Su, Ying

|

收藏 | 浏览/下载：18/0 | 提交时间：2019/04/09

Anticoagulant Activity Fluorescence Layer-by-layer Method Nanotubes Self-assembly

A composite hardness stamp in 184 PDMS for nanostructures transfer in high fidelity (EI CONFERENCE) 会议论文 OAI收割
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
作者: Du J.; Shi L.; Li S.

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

To improve the fidelity of nanostructures in transfer process a composite stamp with reasonable hardness distribution in 184 PDMS used to nanoimprint was studied. The stamp is composed of a stiff 184 PDMS structured layer and a soft 184 PDMS supporter layer. We studied the relationship between the hardness of the 184 PDMS and the proportion of each component in 184 PDMS. The appropriate components proportions of prepolymer and curing agent corresponding to the different region of the composite stamp were presented. The fabrication method of the stamp is also presented. Corresponding experiments were carried out by using this stamp. Kinds of nanostructures were transferred in one inch diameter area with good fidelity. The feature sizes of the structures were less than 100 nm. 2012 IEEE.

Design of a miniature axial flux flywheel motor with PCB winding for nanosatellites (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
Wu J.

收藏 | 浏览/下载：41/0 | 提交时间：2013/03/25

This paper presents the design and analysis of an axial flux permanent-magnet (AFPM) machine for nanosatellites application. It is a miniature axial flux surface mounted permanent magnet flywheel motor using a printed circuit board (PCB) stator winding. The PCB stator has simplified the design and construction and avoids unnecessary space since size reduction has become one of the most important aspects of flywheel motor design for nanosatellites. The performances of the machine are estimated by combination method of three-dimensional (3D) electromagnetic finite element analysis (FEA) and approximate theoretical analysis. The back EMF and electromagnetic torque are derived. A comparison between the analysis and experimental measurement results of the prototype machine is also presented. Both simulated and experimental results show that the proposed motor would be an acceptable solution for the nanosatellite applications with advantages such as simple structure and low-cost as multi-layer circuit board production techniques have made the production of printed circuit coils cheaper and easier. 2012 IEEE.