We consider a queuing network with M exponential service stations and with N customers. We study the behavior of a subsystem u, which has a single node as input and a single node as output, when the subsystem parameters are varied. An “equivalent” network is constructed in which all queues except those in subsystem u are replaced by a single composite queue. We show that for certain classes of ...

In this paper a voltage controlled current conveyor is presented wherein the intrinsic transresistance is controlled by a voltage variable current source which is realized using floatinggate MOSFETs. The resultant conveyor has been used to implement an impedance converter which is further used as inductance simulator. The characteristics of the conveyor and inductance simulation have been obtai...

The current paper presents a novel control strategy of a three-phase, four-wire Unified Power Quality (UPQC) to improve power quality. The UPQC is realized by the integration of series and shunt active power filters (APF) sharing a common dc bus capacitor. The realization of shunt APF is carried out using a three-phase, four-leg Voltage Source Inverter (VSI), and the series APF is realized usin...

This paper predicts the ability to externally control the firing times of a cortical neuron whose behavior follows the Izhikevich neuron model. The Izhikevich model provides an efficient and biologically plausible method to track a cortical neuron’s membrane potential and its firing times. The external control is a simple optogenetic model represented by a constant current source that can be tu...

Based on Electroluminescence (EL) theory, the solar cell detection system were built by the particular wavelength near-infrared CCD imaging device, which mainly included the camera obscura, computer imaging analysis software and constant current source, finally completed the near-infrared image detection of solar cells in a dark room. A number of the same batch of solar cells were divided into ...

We report experimental data and modeling results based on device physics and circuit parameters for the spontaneous firing patterns for silicon p-i-n structures at 4.2 K controlled by a constant current source. The model provides insights into the sensitivity of the pulsing rate and explains the wide range of behavior. observed. The knowledge on the effect of these parameters on pulsing is crit...

Except for a few minor corrections this second printing is identical to the first ([Wang 1987]). The book is meant to be a first attempt to consider G’s life and work as a whole within an inclusive context that, except maybe for chapters 6, 10, and 11, is accessible to most thoughtful people. The many personal contacts that W had with G during the later years of G’s life makes him an important ...

Analog electronic cochlear models need exponentially scaled filters. CMOS Compatible Lateral Bipolar Transistors (CLBTs) can create exponentially scaled currents when biased using a resistive line with a voltage difference between both ends of the line. Since these CLBTs are independent of the CMOS threshold voltage, current sources implemented with CLBTs are much better matched than current so...

The well-studied methods of current source density analysis use the Laplacian transform to identify locations and relative magnitudes of current sources and sinks. The method is typically used in reduced one-dimensional form for electrophysiological measures, due to technical limitations. The present paper outlines a two-dimensional method in which simultaneous samples are recorded from multipl...

Effects of conceptual fusion on episodic associative retrieval were examined. Subjects attempted to fuse sequentially displayed (800 ms offset) word pairs; pairs subjects were unable to fuse were instead considered associated by juxtaposition. Next, dense-array event-related potentials (ERPs) were recorded while the pairs were redisplayed, half reversed in order. Subjects pressed a button to in...