AUTHOR DeBenedictis, John A. -t TITLE Engineering Evaluation of the Optacon ( Optical to TActile_CONverter). Final Report. INSTITUTION Franklin InstiResearch Labs., Philadelphia, Pa. SPONS AGENCY National Inst. of Education (DHEW), Washington, D.C. Office of Administration and'Mamagement. Contracts and Grants Div. AIRPORT NO FIRL-F-C-305 PUB DATE Sep 73 CONTRACT OEC-0-72-5181 NOTE 108p.; For re...

A shrinking core model is presented for the galvanostatic discharge of a metal hydride particle. A quantitative criterion for when the shrinking core can be completely neglected or approximated by a pseudosteady-state solution is presented. The effect of shrinking of the core on the discharge behavior of a metal hydride particle is also studied. © 2000 The Electrochemical Society. S0013-4651(00...

Regression and neural network models of wage determination are constructed where the explanatory variables include detailed information about the impact of school curricula on future earnings. It is established that there are strong nonlinearities and interaction effects present in the relationship between curriculum and earnings. The results have important implications in the context of the hu...

Referring to Figure 1, a system for using a PLL to generate higher frequencies than the input, the VCO oscillates at an angular frequency of ωO. A portion of this signal is fed back to the error detector, via a frequency divider with a ratio 1/N. This divided down frequency is fed to one input of the error detector. The other input in this example is a fixed reference signal. The error detector...

[This corrects the article on p. 626 in vol. 5, PMID: 25505453.].