نتایج جستجو برای: pyrotechnic

تعداد نتایج: 197  

2012
Jesse J. Sabatini James M. Raab Ronald K. Hann

Hand-held signals (HHS) are used in signaling troop movements and aircraft. Meant to attract attention and to identify the positions of military personnel, HHS technologies find use in both training exercises and combat situations, and improvements are being sought to advance existing HHS technology. One of the most popular HHS items used by the US military for illuminating purposes is the M127...

2017
Robert G. Wright Keith A. Arnold Michael O. Way

A method for measuring and mapping the location of blackbird (Icterinae) damage to ripening rice over time was developed and employed in 7 commercial rice fields ranging from 20.6 to 47.4 ha in Matagorda County, Texas, during the 1985 and 1986 growing seasons. Ten evenly-spaced transects were established perpendicular to the longest side of the field and each transect was sampled at pre-determi...

Journal: :Propellants, Explosives, Pyrotechnics 2023

In general, there are two major reasons for undertaking research into the synthesis of energetic materials at universities and government institutions. The first reason is to discover develop new chemical substances that could meet essential needs in civilian sector as well those national security. second, equally important reason, maintain specialized knowledge capability chemists engineers ha...

2001

The developers of magnesium metal production were always interested in methods of producing alloys and products. Casting was the first major development in the production of structural parts, but rolling, forging and extrusion closely followed it. This paper reviews the tremendous historical developments in wrought products during the 1930’s and 1940’s. At the peak of magnesium production for W...

2006
Kenneth L. cashdollar Isaac A. Zlochower Kenneth L. Cashdollar

The Pittsburgh Research Laboratory of the National Institute for Occupational Safety and Health conducted a study of the explosibility of various metals and other elemental dusts dispersed in air, with a focus on the experimental explosion temperatures. The data are useful for understanding the basics of dust cloud combustion, as well as for evaluating the explosion hazards in the minerals and ...

Journal: :British journal of sports medicine 2007
P McCrory

I couldn’t help but notice the recent press reports of how the weather was going to be dealt with for the 2008 Beijing Olympics. Having picked the wettest month of the year to hold the Olympic Games, the Chinese have developed one of the world’s largest weather modification strategies. Weather patterns over Beijing in recent decades indicate a 50% chance of rain during the Games. Clearly, this ...

Journal: :Propellants, Explosives, Pyrotechnics 2021

Propellants, Explosives, PyrotechnicsVolume 46, Issue 2 p. 171-173 EditorialFree Access Professor Dr. Thomas M. Klapötke First published: 03 February 2021 https://doi.org/10.1002/prep.202180231 On the occasion of his 60th birthday AboutSectionsPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms an...

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