The Nyquist approach to stability is used in a form suitable for representation on a chart having conventional Smith chart scales. It is shown how the gain and stability of negative conductance reflection amplifiers of the tunnel-diode type can be simultaneously predicted on this chart. The technique described is particularly useful in the practical design of these amplifiers embedded in networ...

Pseudo-random signal has potential value as ranging system’s signal since it has noise-like character, excellent autocorrelation and large time bandwidth character. The theory of the ranging system based on pseudo-random signal and how system works will be introduced in detail in this paper. We learned that the quality of signal generated by pseudo-random signal generator is very good through o...

Smith is an instructional, interactive, menu driven program that offers the use of Smith Chart on a personal computer. Using the Smith Chart is greatly simplified by providing the user with a “tracking mode” in which the cursor is tracked, showing the normalized resistance and reactance as well as distances from source and load. Also, construction lines such as radius, diameter and circles can ...

The controllability of a factory is highly dependent on the capability of a given enterprise planning system to interact with the shop floor, and the capability of any authorized user to review the operation plans , as well as the status of any sales order on the shop floor. We have called the concept “ E-manufacturing” ,which is a concept to improve the controllability of a factory by connecti...

preparing thermal comfort conditions in outdoor public spaces is one of the considerations of architectural design. if the constructed area does not support comfortable conditions in outdoor spaces, it will cause microclimatic problems for pedestrians and adjacent buildings. regarding the different thermal comfort conditions in outdoor spaces in comparison with indoor, several indices have been...

OBJECTIVES The aim of the present study was to determine whether administration of zolpidem, a nonbenzodiazepine sedative-hypnotic agent, at night would improve the nocturia unresponsive to alpha-blocker monotherapy in men with lower urinary tract symptoms (LUTS). METHODS This was a prospective observational study comprised of 39 men aged 50 years and older. The study inclusion criteria were ...

THIS report presents a graphic expression of the accident-volume relation at divided highway intersections. The expression was produced by averaging the past accident experience at 150 intersections. A total of 1, 811 accidents was tabulated in developing the chart. Uses of the chart include: (1) estimating the probable number of accidents which wil l occur in a future period and (2) correcting...