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	Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies 期刊论文 OAI收割 JOURNAL OF HIGH ENERGY ASTROPHYSICS, 2022, 卷号: 34, 页码: 49-211 作者: Abdalla, Elcio; Abellan, Guillermo Franco; Aboubrahim, Amin; Agnello, Adriano; Akarsu, Ozgur \| 收藏 \| 浏览/下载：45/0 \| 提交时间：2023/01/16 FINE-STRUCTURE CONSTANT MICROWAVE-ANISOTROPY-PROBE OSCILLATION SPECTROSCOPIC SURVEY DARK ENERGY SURVEY LARGE-SCALE STRUCTURE BARYON ACOUSTIC-OSCILLATIONS UNIVERSAL ROTATION CURVE MATTER POWER SPECTRUM LARGE-ANGLE CORRELATIONS HUBBLE-SPACE-TELESCOPE
	Optimal Attitude Sensor Placement and Modal Frequency Identification of Large Space Structure 会议论文 OAI收割 Shanghai, China, July 26-28, 2021 作者: Ni ZY(倪智宇); Wu CC(吴晨晨); Wu SN(邬树楠); Zhang, Yuhang \| 收藏 \| 浏览/下载：59/0 \| 提交时间：2021/10/30 large space structure attitude sensor placement on-orbit identification modal frequency state space model
	Structural design of primary mirror subassembly for space telescope (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan 作者: Xu H. 收藏 \| 浏览/下载：69/0 \| 提交时间：2013/03/25 In order to design a large aperture primary mirror with the diameter of 1150 mm the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail including material selection diameter-thickness ratio the number of the support points location selection and lightweight structure etc. A novel space mirror structure system was put forward and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications Switzerland.
	Observational constraints on cosmic neutrinos and dark energy revisited 期刊论文 OAI收割 JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2012, 期号: 11 Wang, X; Meng, XL; Zhang, TJ; Shan, HY; Gong, Y; Tao, C; Chen, XL; Huang, YF 收藏 \| 浏览/下载：38/0 \| 提交时间：2014/04/25 MATTER POWER SPECTRUM HUBBLE-SPACE-TELESCOPE WEAK-LENSING SURVEYS OBSERVATIONS COSMOLOGICAL INTERPRETATION BARYON ACOUSTIC-OSCILLATIONS PROBE WMAP OBSERVATIONS LUMINOUS RED GALAXIES LARGE-SCALE STRUCTURE EQUATION-OF-STATE MASSIVE NEUTRINOS
	Study on ultra-light secondary baffle for coaxial two-mirror telescope (EI CONFERENCE) 会议论文 OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者: Zhang L.; Zhang L. 收藏 \| 浏览/下载：71/0 \| 提交时间：2013/03/25 The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope the structure should have high stiffness and high reliability and light weight. Compared with invar aluminum alloy and titanium alloy carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages such as ultra-light weight high stiffness and dimensional stability etc. The optimization method and the baffle design can be helpful to other coaxial telescopes such as Cassegrain Gregorian and their subdivisions. 2012 IEEE.
	Dark Energy 期刊论文 OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 2011, 期号: * 作者: Li, M; Wang, Y 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/05/17 EQUATION-OF-STATE GAMMA-RAY BURSTS HUBBLE-SPACE-TELESCOPE GENERALIZED CHAPLYGIN-GAS DIGITAL SKY SURVEY MICROWAVE BACKGROUND ANISOTROPIES BARYON ACOUSTIC-OSCILLATIONS PROBE WMAP OBSERVATIONS LARGE-SCALE STRUCTURE COSMOLOGICAL CONSTANT PROBLEM
	Analysis of inertia dyadic uncertainty for small agile satellite with control moment gyros (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China 作者: Zhang L.; Zhang L.; Sun Z. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 With the increasing demands for the agility of the next earth imaging satellite control moment gyro (CMG) is considered to be the most suitable actuator because of its torque amplification capability. However a CMG system may introduce uncertainty of inertia dyadic to a satellite's attitude control system. The uncertainty is negligible for large space vehicles but it has not been tested whether it can be ignored for small agile satellites. How to model the CMG system inertia dyadic varying with gimbal angles and what influence it will put on the performance of attitude control system haven't been test accurately as well. All of them are dealt with mathematically and accurately in this paper. This paper firstly gives mathematic descriptions of the inertia dyadic of the 4-CMG pyramid configuration system varying with gimbal angles and then designs a variable structure control law for small agile satellite using CMGs. Finally numerical simulation suggests that the inertia dyadic variation of a 4-CMG pyramid configuration system is approximately centesimal of the total inertia dyadic of the satellite and that the designed variable structure control law is of good robust performance for an example of large-angle attitude maneuver despite of the variation of the inertia dyadic. 2010 IEEE.
	Optical system of large relative aperture and wide field using aspheric corrector for detecting (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Zhang J.; Zhang J.; Zhang J.; Wang J. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 The magnitude requirement of space target detecting determines that the image of detecting telescope should have several performances: small spots the wider field of view small 80% encircled energy diameter and good MTF(Modulation transfer function). So the aperture and field of view of optical system have some demands accordingly. The larger aperture the more extensive range which the telescope searches. Now most of ground telescopes whose apertures are from 500mm to 1000mm is on-axis optical system the more energy that telescope collects and higher magnitude the telescope detects so wide field of view becomes the most importance problem. To obtain large relative aperture and wide field of view the paper introduces a catadioptric telescope with small aperture aspheric refractive corrector whose conic surface will be used to remove the aberrations due to large relative aperture and wide field of view. As to the optical system there is only one aspheric refractive corrector and it is relatively easy for manufacturing because of its concave figure and normal material. The paper gives the example and optimizes this optical system with ZEMAX program. And then the paper provides a specific analysis program for testing the aspheric refractive corrector. The aperture of this optical system is 750mm and its relative aperture is 0.82 and the field of view is 3.6 diameter(diagonal). Its structure is simple and the image quality is also very good. 2009 SPIE.