Despite the difficulty in fabrication, resonant tunneling diodes ~RTD! have found a great deal of usage in the analog, digital, and mixed signal realms as a means of increasing the speed of signal processing circuitry or in reducing the static power dissipation in the circuitry. Nevertheless, RTDs suffer from their nonplanar structure. In this paper, we present a planar diode which operates via...

The wide area monitoring of power systems is implemented at a central control center to coordinate the actions of local controllers. Phasor measurement units (PMUs) are used for the collection of data in real time for the smart grid energy systems. Intrusion detection and cyber security of network are important requirements for maintaining the integrity of wide area monitoring systems. The intr...

This paper proposes a three-level discrete Fourier transform (DFT) method to provide an accurate estimate of power system frequency in real time. The first level decomposes a power system signal into two orthogonal cosineand sine-filtered signals. The second and third levels are used to determine the amplitude ratio of the cosineand sine-filtered signals without encountering the zero-crossing p...

This paper presents a study of a DFIG wind power generation system for real-time simulations. For real-time simulations, the Real-Time Digital Simulator (RTDS) and its user friendly interface simulation software RSCAD are used. A 2.2MW grid-connected variable speed DFIG wind power generation system is modeled and analyzed in this study. The stator-flux oriented vector control scheme is applied ...

The quantum mechanical functionality of nanoelectronic devices such as resonant tunneling diodes (RTDs), quantum well infrared photodetectors (QWIPs), quantum well lasers, and heterostructure fieM effect transistors (HFETs) is enabled by material variations on an atomic scale. The design and optimization of such devices requires a fundamental understanding of electron transport in such dimensio...

A bench-scale, continuous vortex flow reactor (VFR), with a radius ratio, , equal to 0.48 and an aspect ratio, , equal to 11.19 was studied. This reactor may be used in the enzymatic hydrolysis of polypeptides obtained from sweet cheese whey with enzymes immobilized on agarose gel. Operational conditions were 2410 < Re < 11793 and 30-min residence time for glycerol-water, 14% w/w, 27C (Reax = 1...

Comprehensive analysis of Distributed Energy Resources (DER) integration requires tools that provide computational power and flexibility. In this context, throughout this paper PHIL simulations are performed to emulate the energy management system of a real microgrid including a diesel synchronous machine and inverter-based sources. Moreover, conventional frequency and voltage droops were incor...

For the last 100 years, diagnosis of malaria has been based on examination of Giemsa-stained thick and thin blood films under the microscope. This is a time-consuming procedure which often fails to correctly diagnose the infecting species--especially when carried out by inexperienced technicians or when blood levels of parasite are low. Rapid Diagnostic Tests (RDTs) for antigen detection can di...

Approximate pattern matching is comparing an input pattern with a target pattern with a specified error tolerance. This ability to compensate for real-world sensor errors makes approximate pattern matching an ideal choice for a wide range of applications. This paper shows that two n-bit patterns may be matched with a single stage nanotechnology architecture using 2n þ 1 unit area resonant tunne...

Recently there is a renewed interest in the development of transistor circuits which emulate the Negative Differential Resistance (NDR) exhibited by different emerging devices like Resonant Tunneling Diodes (RTDs). These MOS-NDR circuits easily allow the prototyping of design concepts and techniques developed for such NDR devices. The importation of those concepts into transistor technologies c...