中国科学院机构知识库网格系统: 检索

Strength development of dredged sediment stabilized with nano-modified sulphoaluminate cement 期刊论文 OAI收割
SOILS AND FOUNDATIONS, 2025, 卷号: 65, 期号: 1, 页码: 16
作者: Lang, Lei; Xue, Dan-Xuan; Dong, Meng; Zhang, Wei; Li, Jiang-Shan

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收藏 | 浏览/下载：1/0 | 提交时间：2025/06/27

Dredged sediment stabilization Sulphoaluminate cement Nano-modification Strength development Micro-mechanism

Recycling engineering sediment waste as sustainable subgrade material using ground granulated blast-furnace slag, electrolytic manganese residue and cement 期刊论文 OAI收割
ENVIRONMENTAL TECHNOLOGY & INNOVATION, 2025, 卷号: 37, 页码: 22
作者: Lang, Lei; Zhu, Mingzheng; Pu, Shaoyun

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收藏 | 浏览/下载：5/0 | 提交时间：2025/06/27

Engineering sediment waste Low-carbon stabilization Strength development Durability Micro-mechanisms

Meso-Mechanical Characteristics of Granite with Natural Cracks after Mud Acid Corrosion 期刊论文 OAI收割
ENERGIES, 2022, 卷号: 15, 期号: 3, 页码: 19
作者: Tong, Rongchen; Liu, Hejuan; Liu, Jianfeng; Shi, Yingkun; Xie, Lihuan

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收藏 | 浏览/下载：76/0 | 提交时间：2022/04/11

geothermal energy development granite mud acid solution particle flow code characteristic strength

Strength and microstructural characteristics of cement-solidified salt-rich dredged silt modified by nanoparticles 期刊论文 OAI收割
MARINE GEORESOURCES & GEOTECHNOLOGY, 2021, 页码: 12
作者: Wang, Shiquan; Lang, Lei; Wei, MingLi; He, Xingxing; Wang, Rui

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收藏 | 浏览/下载：100/0 | 提交时间：2021/10/27

Dredged silt solidification stabilization chloride salt nano-SiO2 nano-MgO strength development

Importance of coalescent development of Gracilaria sp tetraspores 期刊论文 OAI收割
PHYCOLOGICAL RESEARCH, 2016, 卷号: 64, 期号: 3, 页码: 200-203
作者: Yu, Ruixue; Lin, Apeng; Xie, Xiujun; Wang, Hui; Zhang, Fu

收藏 | 浏览/下载：35/0 | 提交时间：2016/09/19

adhesion strength clustering growth disc coalescence early development Gracilaria sp intertidal zone

Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China
作者: Li Z.; Li Z.

收藏 | 浏览/下载：48/0 | 提交时间：2013/03/25

Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness strength and thermal dimensional stability some factors such as support scheme materials selection lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge influences of gravity assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5C uniform temperature rise respectively the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz which shows an error less than 5% compared to FEA results. (2013) Trans Tech Publications Switzerland.

Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.; Gu S.; An Y.; Jin G.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well its quality reduced about 20% the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.

Manufacture of 1.2m reaction bonded silicon carbide mirror blank CFID (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
作者:

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

Silicon carbide (SiC) is a new type candidate material for large-scale lightweight space mirror. Its low thermal distortion high stiffness fine optical quality and dimensional stability make SiC an ideal material for large space born telescope. Since ten years Changchun institute optics fine mechanics and physics (CIOMP) has developed reaction bonded SiC (RB-SiC) technology for space application and can fabricate RB-SiC mirror with scale less than 1.0 meter for telescope. The green body is prepared with gel-casting method which is an attractive new ceramic forming process for making high-quality complex-shaped ceramic parts. And then unmolding drying binder burning out reacting bonded the RB-SiC can be obtained. But with the development of space-born or ground telescope the scale of primary mirror has exceeded 1.0 meter. So CIOMP has developed an assembly technique which called novel reaction-formed joint technology for larger RB-SiC mirror blank. The steps include joining of green bodies with mixture comprised of SiC particles and phenolic resin etc firing machining and sintering. Joining the 1.2 meter RB-SiC mirror blank by the novel reaction-formed joint technology. And testing the welding layer's performance the results show that the thickness of 54-77m the microstructure and thermal property can be comparable to the substrate and the mechanical property are excellent in bending strength of 307MPa. 2010 Copyright SPIE - The International Society for Optical Engineering.

Room-temperature ductility and anisotropy of two rolled Mg-Zn-Gd alloys 期刊论文 OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2010, 卷号: 527, 期号: 15, 页码: 3317-3322
H. Yan; R. S. Chen; E. H. Han

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Magnesium alloys Texture Rolling sheets Ductility Anisotropy Strain hardening az31 magnesium alloy tensile ductility stretch formability texture development deformation enhancement extrusion sheets improvement strength

Influence of smelting processes on precipitation behaviors and mechanical properties of low activation ferrite steels 期刊论文 OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2010, 卷号: 528, 期号: 2, 页码: 657-662
Z. X. Xia; C. Zhang; H. Lan; Z. G. Yang; P. H. Wang; J. M. Chen; Z. Y. Xu; X. W. Li; S. Liu

收藏 | 浏览/下载：38/0 | 提交时间：2012/04/13

CLF-1 steel Precipitation behaviors Smelting processes Creep properties Macrosegregation research-and-development creep-rupture property martensitic 9cr steels microstructure strength jlf-1 clam