how will future fuels influence automotive rubber products?

up to the 1930's, the rubber industry only had natural rubber at its disposal and fuel hoses were therefore manufactured of hard filled natural rubber with a great deal of sulfur, possibly some resin and with woven cotton reinforcement. this was not a sophisticated solution from a technical viewpoint but it worked. now the position is com..

molecular architecture of cotton cellulose

a study of the structure of cotton fibers is described, the objective being to determine whether differences in properties between cotton types can be attributed to differences in structure, primarily at the molecular or supramolecular level of organization it is concluded that there are no obvious differences in the nature of the crystal..

storing unginned cotton with a liquid chemical preservative

the paper reports on a study to investigate whether the use of a propionic acid-based chemical would prevent the deterioration of damp, freshly harvested seed cotton during 9 months of storage and to determine the effects of its use on lint quality and on cottonseed germination. seed cotton of 17 percent moisture content was treated with ..

tractor operator enclosure environment during pesticide application operations

during the summers of 1974 and 1975 a carefully controlled series of tests was conducted to determine the potential contamination of the operator's environment in an air-conditioned tractor operator enclosure when applying toxic pesticides. these tests (which were carried out while spraying cotton, soybeans and pecans in arkansas and miss..

transient charge transfer occurring in living plants undergoing electrostatic spraying

the paper reports on an experimental analysis of the transient charge-transfer capability and electrical characteristics of cotton plants having a rapidly time-varying electric-field gradient imposed just off their surface. the plants were subjected to several types of electric-field strength and geometry; charge transfer ability was meas..

solderless zero-profile sockets using precision machined contacts inside plated through holes

a socketing device for mounting components on p/c boards allow fast, low-risk, component replacement or substitution

consultants view of automating p. c. equipment

discussed are the problems involved in automating or mechanizing p/c processes

pc manufacturers view of current processors equipment

it is suggested that the productivity of p/c board manufacturers be increased through greater mechanization and research in materials and processing equipment

productivity of energy

a simple and practical graphical method for making international or inter-regional comparisons of energy productivity has been developed and applied to some specific significant cases the method is based on definitions of national energy productivity as gdp per unit of energy consumed, annual per capital energy consumption, and the produc..

cloud physics: a review for 1975-1978 iugg quadrennial report

major advances in cloud physics for the period 1975 to 1978 are reviewed. the topics include warm-cloud nucleation and cloud condensation nuclei, precipitation developments in warm clouds, raindrop distributions and drop breakup, nucleation of the ice phase and ice multiplication, precipitation processes in super-cooled clouds, cloud char..