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Two-Face, Two-Turn alpha-Helix Mimetics Based on a Cross-Acridine Scaffold: Analogues of the Bim BH3 Domain 期刊论文  OAI收割
CHEMBIOCHEM, 2014, 卷号: 15, 期号: 9, 页码: 1280-1285
作者:  
收藏  |  浏览/下载:33/0  |  提交时间:2015/11/02
The load analysis of chisel-edge ruling tool for diffraction gratings (EI CONFERENCE) 会议论文  OAI收割
2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China
作者:  
zhang f.;  zhang f.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
The process of wear design on chisel-edge ruling tool of diffraction gratings is very complex because of following two reasons that one is the load distribution on minute edge area when grating ruling  and the other is the anisotropic character of natural diamond. The former is the first step when wear design on chisel-edge ruling tool of diffraction grating  In order to predicate the load distribution on minute edge area of tool  this paper simulated the load distribution on minute edge area of tool by software when ruling on Aluminum-1100 with tabular data format flow stress and Aluminum-1100 with Power law flow stress respectively  and through comparative analysis determined the approximate load distribution on minute edge area of chisel-edge ruling tool that the high load mainly focused on the edge area close to the tip of ruling tool and amount to 200MPa while about to 100MPa on the face of tool. (2012) Trans Tech Publications  Switzerland.  
The full hemisphere integrating measurement of the reflectance of black cavity (EI CONFERENCE) 会议论文  OAI收割
ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang Y.;  Yu B.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
The conical black cavities are used in the Solar Irradiance Absolute Radiometers (SIARs) of the solar constant monitor aboard on the SZ spaceship and of the Solar Total Irradiance Monitor (STIM) aboard on sun-synchronous polar orbit weather satellites. A low reflectance measurement instrument which is used for making the integrating measurement on the reflectance of the conical black cavity in a high precision within the full hemisphere (include the entrance of the Ulbrichtsphere) has been constructed. The characteristic of the instrument is the employment of a semi-transparent mirror  which is mounted in an inclination angle of 45 degrees in front of the entrance of the Ulbrichtsphere. The incident beam is reflected to the black cavity or white board by the semi-transparent mirror. A portion of those  which is made diffused reflection through the black cavity or white board  is measured by the detector located in the side face of the Ulbrichtsphere  and the other portion which is reflected to the entrance is measured by the other detector  after passing through the semi-transparent mirror  and then being focused on by an ellipsoidal mirror. The two measurement data are added up to get the integrating reflectance within full hemisphere. The presentation and verification on the measurement result of the reflectance of the black cavity and its precision are described in this article. The absolute accuracy can reach 0.012%.