A flame retardant composition was prepared by using phosphoguanidine, guanidine sulfamate, disodium octaborate tetrahydrate and dodecyl dimethyl benzyl ammonium chloride. Veneers were immersed in such mixture to prepare plywood. The combustion characteristics thermal stability of plywood assessed a cone calorimeter TG. Results showed that: (1) High concentration loading beneficial for the fire ...

a r t i c l e i n f o to prohibit the import of illegally sourced plant materials and products manufactured from them into the United States and its territories, and to similarly ban their interstate transport. Trade theory suggests that the effect of the new law would be to reduce the flow of illegally sourced fiber into the United States, increasing prices. Monthly U.S. import data on tropica...

Recent improvements in digital C-arm radiographic units permit the safe and effective performance of cerebral angiography in the operating room. Intraoperative cerebral angiography, in turn, facilitates more effective aneurysm surgery and arteriovenous malformation therapy (1 , 2]. A variety of radiolucent carbon fiber head holders are now available for use in neurosurgical procedures that invo...

2014 The shielding properties of a superconducting lead shell have been investigated in fields of the order of 10-4 gauss. The small ambient fields were obtained with a room size 03BC-metal shield. Fields of less than 2 microgauss were obtained over a sphere of 7.5 cm diameter. This region is at room temperature and is suitable for magnetometer testing. REVUE DE PHYSIQUE APPLIQUÉE TOME 5, FÉVRI...

The probability of structural ignition is dependent both on physical properties materials and the fire exposure conditions. In this study, effect firebrand characteristics (i.e., size, number firebrands) wood behavior was considered. Mathematical modeling laboratory experiment were conducted to better understand conditions by a single or group firebrands with different geometry. This model cons...

The Florida Solar Energy Center (FSEC), with the support of the National Renewable Energy Laboratory (NREL), has investigated the thermal performance of solar absorbers which are an integral yet indistinguishable part of a building’s roof. The first roof-integrated solar absorber (RISA) system was retrofitted into FSEC’S Flexible Roof Facility in Cocoa, Florida in September 1998. This “proof-of...