Now showing items 1-10 of 79
Scheduling independent jobs with stochastic processing times and a common due date on parallel and identical machines
(Baltzer Science Publishers, Baarn/Kluwer Academic Publishers, 1989)
We propose a heuristic procedure that constructs a schedule for N jobs with stochastic processing times and a common due date on M parallel, identical machines. The criterion is the minimization of the total expected ...
High efficiency Lamb wave lens for subsurface imaging
A conventional scanning acoustic microscope lens excites all the possible modes of acoustic waves in the solid structure under examination. The excited leaky modes contribute significantly to the high contrast obtained in ...
A fast method of calculating diffraction loss between two facing transducers
A fast method of calculating the diffraction loss between two facing circular ultrasonic transducers of unequal size is presented. This problem is directly applicable for minimization of diffraction loss in acoustic lens ...
An Upper Bound on the Cutoff Rate of Sequential Decoding
An upper bound is given on the cutoff rate of discrete memoryless channels. This upper bound, which coincides with a known lower bound, determines the cutoff rate, and settles a long-standing open problem. © 1988 IEEE
Calculations of STM linescans-general formalism
(Pergamon Press, 1988)
We have developed a formalism for calculating the line scans of the scanning-tunneling microscopy from the realistic substrate and tip wave functions. The tip wave functions are calculated self-consistently by using a ...
Digital decoding of in-line holograms
Digitally sampled in-line holograms may be linearly filtered to reconstruct a representation of the original object distribution, thereby decoding the information contained in the hologram. The decoding process is performed ...
An Input/Output control system for the dynamic job shop
(Taylor & Francis, 1987)
A combined input/output control system is presented for periodically determining the set of jobs to be released (input variables) and the capacities of processing centers (output variables) in the dynamic job shop, so that ...
Molecular-dynamics study of self-interstitials in silicon
(American Physical Society, 1987)
Results of a molecular-dynamics computer simulation are presented for atomic relaxations and relaxation energies for self-interstitials in a silicon crystal. The Stillinger-Weber model potential containing two- and three-body ...
Sedimentation rates in the central lake constance determined with210Pb and137Cs
Sediment cores from central Lake Constance were dated with210Pb and137Cs. A sedimentation rate of (0.11±0.02) g·cm-2·y-1 was determined with the210Pb method.137Cs measurements revealed sedimentation rates of (0.11±0.01) ...
Long-range order and segregation in semiconductor superlattices
Results of self-consistent energy-minimization calculations provide strong evidence that the ordered phases in epitaxially grown Ga1-xAlxAs and strained Si1-xGex alloys are metastable, in the sense that segregation into ...