In flammability assessment, the terpene effect is usually studied using their total or subgroup content, missing, therefore, information that could be provided by molecules themselves. this study, specific role of terpenes on leaf was sought comparing different levels identification—total, (i.e. mono-, sesqui-, and diterpene), single compound—as well as interactions with fuel moisture content (...

In this study, we evaluated changes in the potential flammability of different Mediterranean shrub species a pine (Pinus pinea) forest Doñana Natural Park (of SW Spain) as result goat grazing. Plant height, total biomass, fine fuel biomass and leaves/wood ratio were measured individual plants each both grazed ungrazed areas. Moisture content, mean time ignition, combustion, gross heat combustio...

air conditioning refrigerant r134a has value of global warming potential (gwp) 1300, which is much higher than mac directive (gwp below 150) passed in july 2006. this prompted a search for alternative refrigerant with gwp value less than 150. r1234yf is a new refrigerant which has lower gwp value of 4. effect of blower speed has been compared and flammability issue of r1234yf has been addressed...

Juli G. Pausas*, Jon E. Keeley and Dylan W. Schwilk CIDE-CSIC, Ctra. Naquera Km 4.5 (IVIA), Montcada, Valencia 46113, Spain; Western Ecological Research Center, Sequoia Field Station, US Geological Survey, Three Rivers, CA 93271, USA; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA; and Department of Biological Sciences, Texas Tech University...

This study proposes the use of product design in the development of new refrigerants. Product design involves the use of consumer preference functions as described by Bagajewicz (2007). Consumer preference functions relate the satisfaction of consumers to different refrigerants based on their properties. The properties examined in this study were toxicity, flammability, explosion potential, glo...

In this paper, a flame retardant dimethyl-2-(methacryloyloxyethyl) phosphate (DMMEP) was applied to wool fabrics by the graft copolymerization technique initiated with potassium persulfate (KPS) in water media. FTIR and SEM testing were used to explore the grafting evidence on the fiber surface, the SEM results show chemical deposition on the wool fiber surface and the scales could not be seen ...