the effects of cyclic queues on the balance of flow lines

considers a flow line with different numbers of parallel machines at each stage and discusses the findings regarding the effect of cyclic queues of containers on line balance. three types of containers for holding work-in-process following different routes are stored in the cyclic queues. the degree of line imbalance is measured by the le..

competition between photoionization and photopredissociation of the e state of k/sub 2/ in a crossed laser molecular beam experiment

stepwise photoionization of k/sub 2/ has been performed to investigate the k/sub 2/(e=x) band system in a supersonic nozzle beam leading to k/sub 2/(e) molecular constants omega/sub e/ minutes =63.5 +or- 0.3 cm/sup -1/, omega minutes /sub e/x minutes /sub e/=0.39 +or- 0.05 cm/sup -1/. the photopredissociation of the e state of k/sub 2/ is..

an intense, quasi-steady thunderstorm over mountainous terrain. iv. three-dimensional numerical simulation

for pt.iii see ibid., vol.39, no.2, p.359-68 (1982). the three-dimensional version of the csu regional atmospheric modeling system is employed to simulate thunderstorm development and organization in the environment observed after the passage of the mesoscale cold front. the results of this simulation is then compared to the observed flow..

fourier transform spectroscopy of the co b/sup 1/sigma/sup +/-a/sup 1/pi transition

the (0-0), (0-1), (0-2), (0-3) and (1-1) bands of the co b/sup 1/sigma/sup +/-a/sup 1/pi angstrom system have been recorded by high resolution fourier transform spectroscopy at laboratoire aime cotton. well-known perturbations of the a/sup 1/pi state, due to the /sup 1/sigma/sup -/, /sup 1/delta, /sup 3/sigma/sup +/, /sup 3/sigma/sup -/ a..

preparation, molecular structure and electronic structure of the rhombic, six-coordinate niobium (iv) complex nbcl/sub 2/(bu/sup t/c(o)chc(o)bu/sup t/)/sub 2/

the compound trans-nbcl/sub 2/(dpm)/sub 2/, hdpm=2,2,6,6-tetramethylheptane-3,5-dione, has been prepared and the molecular structure determined in each of two crystalline polymorphs by x-ray diffraction. the visible spectrum and the epr spectrum have been measured and a fenske-hall calculation performed. the combined results give a reason..

a low noise gaas mmic satellite downconverter for the 6 to 4 ghz band

an all-gaas mmic wideband 6 to 4-ghz-band downconverter technology demonstrator has been designed, developed, fabricated, and tested. the module achieves an overall conversion gain of 67 db with a 3.2-db noise figure. the mmic chip set developed includes a low-noise amplifier, an active splitter, phase shifters, a mixer, broadband power c..

photoionization of potassium clusters' neutral and ionic cluster stabilities

neutral potassium clusters of two different mass distributions generated either by a sonic or a conical nozzle were photoionized at several ionizing energies. by combining different nucleation conditions with several photoionization situations, variations of ion mass spectral patterns reflecting either neutral or ionic stabilities were ob..

artificial intelligence in computer aided design

the combination of artificial intelligence (ai) and computer aided design is a trend in computer aided techniques. the authors discuss some ai techniques used in special cad systems developed at zhangjiang university. first, an expert system used in art pattern cad is presented. accessing the knowledge bases, the expert system reasons to ..

a low noise gaas mmic satellite downconverter for the 6 to 4 ghz band

an all-gaas mmic wideband 6-4 ghz downconverter technology demonstrator has been designed, developed, fabricated and tested the module achieves an overall conversion gain of 67 db with a 3.2-db noise figure. the mmic chip set developed includes a low-noise amplifier, an active splitter, phase shifters, a mixer, broadband power combiners a..

circular dichroism measurements of thiophenophanes and binaphthyl-descendants in the vuv-region with a recent facility at hasylab

solutions of binaphthyl-derivatives, methylesters of a helical skeleton of the cyclophane type and combinations of these structure units have been measured in an absorption type cd experiment between 200 nm and 160 nm using synchrotron radiation as a continuum light source. assignments of exciton chirality were made according to the cd ex..