scholarly journals Novel Thermally Stable Segmented Solid Paraboloid Antenna for High Surface Accuracy

AIAA Journal ◽  
2021 ◽  
pp. 1-17
Author(s):  
Zhangming Wu ◽  
Hao Li ◽  
Qi Li
Keyword(s):  
High Surface ◽  
Thermally Stable ◽  
Surface Accuracy

High Surface Accuracy Resonant Varifocal Mirror

2015 ◽  
Vol 135 (5) ◽  
pp. 165-170
Author(s):  
Kenta Nakazawa ◽  
Takashi Sasaki ◽  
Kazuhiro Hane
Keyword(s):  
High Surface ◽  
Surface Accuracy

scholarly journals Aerosol synthesis of thermally stable porous noble metals and alloys by using bi-functional templates

2020 ◽  
Vol 7 (2) ◽  
pp. 541-550 ◽  
Author(s):  
Mateusz Odziomek ◽  
Mounib Bahri ◽  
Cedric Boissiere ◽  
Clement Sanchez ◽  
Benedikt Lassalle-Kaiser ◽  
...  
Keyword(s):  
Noble Metal ◽  
Noble Metals ◽  
High Surface ◽  
Metals And Alloys ◽  
Metal Nanostructures ◽  
Thermally Stable ◽  
Surface Areas ◽  
Large Pore ◽  
Aerosol Synthesis ◽  
Noble Metal Nanostructures

Porous noble metal nanostructures providing high surface areas and large pore volumes are attractive for numerous applications, especially catalysis.

scholarly journals J046032 Preparation of high surface accuracy CFRP skin/form core sandwich panels and evaluation of their surface shape

2013 ◽  
Vol 2013 (0) ◽  
pp. _J046032-1-_J046032-4
Author(s):  
Takaki MAEDA ◽  
Shun HONDA ◽  
Masashi ISMIKAWA ◽  
Yasuo KOGO ◽  
Tomohiro KAMIYA ◽  
...  
Keyword(s):  
High Surface ◽  
Sandwich Panels ◽  
Surface Shape ◽  
Surface Accuracy

A novel mesoporous hydrogen-bonded organic framework with high porosity and stability

2020 ◽  
Vol 56 (1) ◽  
pp. 66-69 ◽  
Author(s):  
Bin Wang ◽  
Xiu-Liang Lv ◽  
Jie Lv ◽  
Li Ma ◽  
Rui-Biao Lin ◽  
...  
Keyword(s):  
Surface Area ◽  
Pore Volume ◽  
High Surface ◽  
High Surface Area ◽  
High Porosity ◽  
Thermally Stable ◽  
Large Pore ◽  
Large Pore Volume ◽  
Organic Framework ◽  
Hydrogen Bonded

A highly chemically and thermally stable mesoporous hydrogen-bonded organic framework with a high surface area and a large pore volume has been rationally designed and constructed.

scholarly journals Active Adjustment of Surface Accuracy for a Large Cable-Net Structure by Shape Memory Alloy

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2619
Author(s):  
Xiangjun Jiang ◽  
Fengqun Pan ◽  
Yesen Fan ◽  
Jingli Du ◽  
Mingbo Zhu ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
High Surface ◽  
Element Model ◽  
Optimization Method ◽  
Space Environment ◽  
Antenna Structure ◽  
Adjustment Procedure ◽  
Surface Accuracy ◽  
Parabolic Reflectors

The high surface accuracy design of a cable-net antenna structure under the disturbance of the extremely harsh space environment requires the antenna to have good in-orbit adjustment ability for surface accuracy. A shape memory cable-net (SMC) structure is proposed in this paper and believed to be able to improve the in-orbit surface accuracy of the cable-net antenna. Firstly, the incremental stiffness equation of a one-dimensional bar element of the shape memory alloy (SMA) to express the relationship between the force, temperature and deformation was effectively constructed. Secondly, the finite element model of the SMC antenna structure incorporated the incremental stiffness equation of a SMA was established. Thirdly, a shape active adjustment procedure of surface accuracy based on the optimization method was presented. Finally, a numerical example of the shape memory cable net structure applied to the parabolic reflectors of space antennas was analyzed.

scholarly journals Synthesis of thermally stable, high surface area anatase–alumina mixed oxides

2000 ◽  
Vol 43 (5-6) ◽  
pp. 286-290 ◽  
Author(s):  
S Rajesh Kumar ◽  
Suresh C Pillai ◽  
U.S Hareesh ◽  
P Mukundan ◽  
K.G.K Warrier
Keyword(s):  
Surface Area ◽  
Mixed Oxides ◽  
High Surface ◽  
High Surface Area ◽  
Thermally Stable

scholarly journals High Surface Area, Thermally Stable, Hydrophobic, Microporous, Rigid Gels Generated at Ambient from MeSi(OEt)3 /(EtO)3 SiCH2 CH2 Si(OEt)3 Mixtures by F− -Catalyzed Hydrolysis

2017 ◽  
Vol 24 (1) ◽  
pp. 274-280 ◽  
Author(s):  
Joseph C. Furgal ◽  
Honami Yamane ◽  
Timothy R. Odykirk ◽  
Eongyu Yi ◽  
Yoshiki Chujo ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Thermally Stable
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