Review of Human and Operational Factors Affecting the Feasibility of the See-and-Avoid Concept.

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[文献类型]:科技报告
[标题]:Review of Human and Operational Factors Affecting the Feasibility of the See-and-Avoid Concept.
[作者]:weber, o.
[机构]:Departement d'Etudes et de Recherches en Technologie Spatiale,Toulouse (France). Inst. fuer Flugmechanik.*National Aeronautics and Space Administration,Washington,DC.
[关键词]:accident prevention,collisions,human factors engineering,pilot performance,cockpits,eye movements,flight paths,flight tests,pilot error,visibility,visual flight rules,foreign technology,ntisnasae,ntisfnge
[出版年份]:1982
[报告号]:DFVLR-MITT-81-13
[报告时间]:May 81,
[页码]:52p
[馆藏索取号]:N82-12780
[总页数]:55


[唯一标识符]:CDSITC.AEROSPACE.A00-12618
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:A2000-12618; Reference AN: A2000-12618
[标题]:Lightning first pulses used in the 'LASI' (time-of-arrival) and 'ATLAS' (single station) total lightning mapping systems
[作者]:Markson Ralph; Ruhnke Lothar
[书名]:IN: ICAE 99 - International Conference on Atmospheric Electricity, 11th, Guntersville, AL, June 7-11, 1999, Proceedings (A00-12570 01-47), Huntsville, AL, National Aeronautics and Space Administration, 1999, p. 188-191
[文摘]:The first RF pulse from 'total lightning' discharges (cloud and ground flashes) has been used in different ways to locate the origin of flashes in two new types of lightning detection systems. The multisensor LASI time-of-arrival system uses GPS timing of the first pulse. The ATLAS single sensor system uses the amplitude of the first pulse, which is invariant in magnitude and polarization for all lightning discharges, to determine distance from the sensor. It is significantly more accurate than past single sensor lightning mapping systems. The polarity of the first pulse generally identifies lightning type (IC or CG). Both systems utilize only the first pulse, which makes signal processing much simpler than with previous lightning locating systems. Knowing the position where lightning begins (maximum electric fields, mixed phase hydrometeors, and updrafts) is valuable for identifying convective cells producing the hazardous meteorological conditions caused by thunderstorms. It is also important for research on thunderstorm electrification and associated microphysical problems. (Author)
[关键词]:LIGHTNING DETECTION; ATMOSPHERIC ELECTRICITY; THEMATIC MAPPING; ELECTRIC PULSES; SIGNAL DETECTORS; TIME MEASUREMENT; RADIO FREQUENCIES; THUNDERSTORMS ; MICROPHYSICS ; GROUND BASED OBSERVATION
[出版年份]:1999
[专业领域]:Meteorology and Climatology
[唯一标识符]:CDSTIC.ISTP.1425701
[文献来源]:科学技术会议录索引(ISTP)
[文献类型]:科技会议
[标题]:Repeated Laparotomy for Infected Pancreatic Necrosis
[作者]:MI Pirski;W Gacyk;M Lukianski;D Zadrozny
[出版单位]:Monduzzi EditoreBologna
[ISSN_ISBN]:88-323-0607-7
[会议名称]:European Congress of the International-Hepato-Pancreato-Biliary-Association (HAMBURG 97),Hamburg, Germany,June 8-12, 1997
[来源]:HAMBURG '97 - EUROPEAN I.H.P.B.A. CONGRESS,pp 601-604
[编辑者]:ECE Broelsch;JR Izbicki;C Bloechle;KA Gawad
[主办单位]:Int Hepato Pancreato Biliary Assoc
[地址]:MI Pirski,Med_Univ_Gdansk, Clin Surg 1, Gdansk, Poland
[专业领域]:Gastroenterology & Hepatology,Transplantation