热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

Laser damage database at 1064 nm

作者:科技文献资料网 时间:2017-06-24 11:36:32  浏览:9072   来源:科技文献资料网
下载地址: 点击此处下载
[唯一标识符]:CDSITC.AEROSPACE.N90-26315
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:N1990-26315; Reference AN: N90-26315
[标题]:Laser damage database at 1064 nm
[作者]:RAINER F; GONZALES R P; MORGAN A J
[文摘]:In conjunction with the diversification of laser damage testing capabilities, a database was expanded of threshold measurements and parameter variations at 1064 nm. This includes all tests at low pulse repetition frequencies (PRF) ranging from single shots to 120 Hz. These tests were conducted on the Reptile laser facility since 1987 and the Variable Pulse Laser (VPL) facility since 1988. Pulse durations ranged from 1 to 16 ns. (DOE)
[关键词]:ANTIREFLECTION COATINGS; DATA BASE MANAGEMENT SYSTEMS; LASER DAMAGE; PHYSIOLOGICAL EFFECTS; DATA BASES; MIRRORS ; PULSE DURATION; SUBSTRATES ; THIN FILMS
[出版年份]:1990
[专业领域]:LASERS AND MASERS
下载地址: 点击此处下载
[唯一标识符]:CDSITC.AEROSPACE.A94-12071
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:A1994-12071; Reference AN: A94-12071
[标题]:Influence of non-planar blade tips on rotor performance
[作者]:Beesten B M J
[来源]:AAAF-European-Rotorcraft-Forum-18th-Avignon-France-Sept. 15-18-1992-Paper
[文摘]:To investigate the influence of such winglets on rotor performance, measurements of rotor force and power are presented. A fully articulated helicopter rotor model was studied in low-speed wind tunnel tests. Two-bladed and four-bladed rotors have been investigated at different values of forward velocity and rotor speed while blade loading has been varied from non-lifting to stalled conditions. The results show that winglets can reduce induced drag significantly. The best results have been found for twisted winglets. Compared to a reference configuration, a reduction of the required power up to more than 10 percent was obtained for a highly loaded hovering rotor. The improvement results mainly from the non-planarity, as the comparison with a planar blade of the same planform shows. Forward flight tests indicate that the winglets of the current shape are favorable up to medium forward flight speeds (advance ratio of 0.2), while disadvantages are to be expected at faster forward flight. Moreover, winglets were found to be more effective at four-bladed than at two-bladed rotors.
[关键词]:ROTOR AERODYNAMICS; BLADE TIPS; WINGLETS ; AERODYNAMIC LOADS; HELICOPTER PERFORMANCE; HELICOPTER DESIGN; WIND TUNNEL TESTS; AERODYNAMIC CONFIGURATIONS; DRAG REDUCTION; FLIGHT TESTS
[出版年份]:1992
[专业领域]:AERODYNAMICS
[唯一标识符]:CDSTIC.ISTP.203881
[文献来源]:科学技术会议录索引(ISTP)
[文献类型]:科技会议
[标题]:GLUTAINATE, DOPAMINE, AND SCHIZOPHRENIA - FROM PATHOPHYSIOLOGY TO TREATMENT
[作者]:M Laruelle;LS Kegeles;A AbiDargham
[出版单位]:NEW YORK ACAD SCIENCESNEW YORK
[ISSN_ISBN]:1-57331-476-5
[会议名称]:Conference on Glutamate and Disorders of Cognition and Motivation,NEW HAVEN, CONNECTICUT,April 13-15, 2003
[来源]:GLUTAMATE AND DISORDERS OF COGNITION AND MOTIVATION,pp 138-158
[系列名称]:ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
[编辑者]:EB Moghaddam;M Wolf
[主办单位]:Acad Sci;Eli Lilly & Co;Natl Inst Ment Mental
[地址]:M Laruelle,COLUMBIA_UNIV_COLL_PHYS_&_SURG, NEW YORK STATE PSYCHIAT INST, UNIT 31, DEPT PSYCHIAT, NEW YORK, NY 10032 USA
[专业领域]:MULTIDISCIPLINARY SCIENCES,CLINICAL NEUROLOGY,NEUROSCIENCES,PHARMACOLOGY & PHARMACY

版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
信息产业部备案号:京ICP备09025792号