optimising compiler or assembler{

dyed-in-the-wool assembler programmers have always maintained that they can out-perform compiled embedded code, but the author argues that the gap is now very small

printed circuit repair kit (rpu)

the all-union scientific research institute of converters has developed and introduced to mass production the rpu kit. the process equipment intended for repair of printed circuit units is discussed and the technical characteristics are cited with a list of the performed processing operations

operation and performance of the solar steam generation system installed at the government silk factory, mysore

a solar system generation system that generates steam at a temperature of 150 degrees c is in operation at the government silk factory, mysore. the system uses parabolic trough concentrators to heat pressurized water which flashes to steam in a flash boiler. the steam thus produced is fed into the plant steam mains for use in several proc..

patterned y/sub 1/ba/sub 2/-cu/sub 3/o/sub y/ films on y/sub 2/bacuo/sub 5/ substrates by a surface diffusion process

a technique which combines the fabrication and the patterning of 10- mu m-thick films of the high t/sub c/ superconducting y/sub 1/ba/sub 2/cu/sub 3/o/sub y/ directly on the y/sub 2/bacuo/sub 5/ ceramic substrates has been developed. the ba/sub 3/cu/sub 5/o/sub y/(3bacuo/sub 2/+2cuo) powders were patterned on the substrate by silk-screen ..

development of a cw laser absorption diagnostic for measurement of cn in shock tube experiments

time-histories of the cn radical were monitored using a tunable ring dye laser to measure absorption at the p-branch bandhead of the b/sup 2/ sigma /sup +/ from x/sup 2/ sigma /sup +/ (0,0) band of cn in a shock tube. measurements of cn resulting from the pyrolysis of highly dilute mixtures of c/sub 2/n/sub 2/ in ar were compared with a s..

protel's new product makes window shopping worthwhile (pcb cad)

the author discusses protel for windows, a pcb layout, placement and autorouting package. pcbs up to 32*32in can be handled, with a position resolution of 1 mil (1/1000 in). in total, 34 layers are supported' up to 16 signal layers, four internal power planes, four mechanical assembly layers, two silkscreen overlays, two resist masks, two..

current-voltage characteristics of metal-titanium dioxide-silicon structures

metal-titanium dioxide-silicon capacitors are fabricated using electron-beam-evaporated titanium dioxide as the insulating layer the effects of the titanium dioxide deposition conditions and post-deposition oxidation on the current-voltage characteristics are investigated. a time-dependent current is observed and modelled diffusion of the..

schottky (mis) solar cells on ribbon silicon

this paper reports on an investigation of ribbon silicon as the semiconductor substrate used for schottky solar cell fabrication. an important result is concerned with the lower voltage produced by cells on ribbon silicon. with a standard fabrication process these voltages are 0.33 v and 0.52 v for tyco and ibm ribbon, respectively. a spe..

a new fire alarm system for electrical installations

fires in electrical installations are considered to develop in four phases - initiation, smouldering, flame formation and heat development. cables are among the more sensitive components, with working temperatures around 50 degreesc and fire detection at 70 degreesc. conventional alarms include smoke detectors. the new technique described..

resistance to interlayer shear of plastics on a carbon filament base

an equation has been derived for the strength during interlayer shear along reinforcing fibers of a composite material of unidirectional texture which allows calculation of this index as a function of composition of the material and state of the interphase boundary. experimental confirmation of this equation has shown that the effectivene..