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With the development of the smart grid and the advancement in the renewable energy technology, integration of Distributed Energy Resources (DER) has significantly increased in the electric power grid. One of the predominant renewable energy sources, wind energy, possess a significant challenge for grid operations, due to its intermittency and variability. In some operating conditions, part of wind...
GaN emitters have historically been of hexagonal phase due to natural crystallization. Here we introduce a cubic phase GaN emitter technology that is polarization-free via cointegration on cheap and scalable CMOS-compatible Si(100) substrate.
In this paper, we present a method for hardening memory and sequential cells against soft errors. The effect of the ionizing particle on the bulk potential is exploited to prevent the induced SET from propagating in the circuit. The proposed method requires a minimum number of extra transistors. The solution is applied to D Flip-Flop design, and alpha and heavy-ions test results are presented.
Conductive atomic force microscopy (CAFM) was used to investigate nano-electric performances of semiconductor MOS (metal-oxide-semiconductor) devices. Due to the small tip size (as small as ∼20 nm for PtSi probes), CAFM is capable of imaging both topography and current information of nano-device structures simultaneously with very high lateral resolution. Due to the use of wide ranges of current amplifier...
This paper reports our newly developed microfluidic print-to-screen (MPS) platform and its application for synthesizing combinatorial peptide on PEG microdisc array. The MPS platform possesses several distinct features including easy operation, free of contamination, multiplexibility, low cost, high throughput and array density. The performance of the MPS system is characterized and, as proof of concept,...
We experimentally demonstrate epsilon-near-zero “photonic wires” supporting optical modes with effective wavelengths 10 times larger than the light's free space wavelength and improved propagation lengths. Design, fabrication, and characterization of the wires will be discussed.
In this paper, a dual gain control (DGC) technology is proposed to achieve large gain variation range and good gain flatness for every controllable gain in ultra wide frequency band. The DGC technology includes a modified current mirror structure and a dynamic signal feedback structure. Based on the DGC technology, a variable gain amplifier with both large dynamic gain variable range and good gain...
Document modeling with hidden units as known as topics are very popular. Non-negative matrix factorization(NMF) is one of the most important techniques in document representation, which decomposes a document-term matrix into a document-topic matrix and a topic-term matrix. Since orthogonal constraint would limit terms occur only in one topic, we abandon this strong constraint. Furthermore, in order...
This paper describes the total ionizing dose test facility available at the University of Saskatchewan. Two Co-60 sources are available one for high and the other low dose rate radiation effects testing of electronics. The total ionizing dose performance of an operation amplifier was evaluated. The testing results compare well with previously published results.
We present the characterization of minority carrier diffusion length and surface recombination velocity, as well as vertical diffusivity and mobility by performing an electron beam induced current measurement in addition to an optical lifetime measurement.
A 7th-order capacitive-gap transduced 8-MHz microme-chanical filter has been demonstrated with a channel-selecting bandwidth of 24 kHz (0.3%) and a shape factor of 1.45, which bests the previous mark of 1.86 for similar frequency MEMS-based filters. This shape factor arises from not only the sheer order of the filter, governed by seven coupled clamped-clamped beam resonators, but also from strategic...
A first-in-kind all-mechanical communication receiver front-end employing resonant micromechanical switch (i.e., resoswitch) technology has detected and demodulated frequency shift keyed (FSK) signals as low as −60dBm at a VLF frequency of 20kHz suitable for extremely long-range communications, all while consuming zero quiescent power when in standby. The key to attaining high quality signal reception...
Purpose: To determine the feasibility of BrightBrainer training of elderly with dementia attending a Medical Adult Day Program. Method: BrightBrainer brain training games were played by 10 participants who sat in front of a projector screen and interacted through a bimanual game controller. The custom games targeted several cognitive domains such as focus, problem solving, short term memory, working...
This work introduces two new metallization schemes using the electroless deposition (ELD) technique; one based on contact fill and one based on via prefill. One of the key features of the electroless process is its selective deposition, which can be used for bottom-up fill of high aspect ratio features. The feasibility of this Co ELD process is demonstrated on contacts landing on W and vias landing...
A self-adaptive dynamic multi-swarm particle swarm optimizer (sDMS-PSO) is proposed. In PSO, three parameters should be given experimentally or empirically. While in the sDMS-PSO a self-adaptive strategy of parameters is embedded. One or more parameters are assigned to different swarms adaptively. In a single swarm, through specified iterations, the parameters achieving the maximum number of renewal...
With the development of the smart grid technology, Information and Communication Technology (ICT) plays a sig- nificant role in the smart grid. ICT enables to realize the smart grid, but also brings cyber vulnerabilities. It is important to analyze the impact of possible cyber-attacks on the power grid. In this paper, a real-time, cyber-physical co-simulation testbed with hardware-in-the-loop capability...
According to the characteristics of a new type of complex joint in the space steel structure, one model of automatic assembly system with 6-DOF was designed. Base on Denavit-Hartenberg method and matrix inverse operation principle, the positive and forward kinematics algorithm of an assembly machine is proposed and the main parameters of pose algorithm are calculated. The automatic assembly machine...
In 2013, a new measurement of the Planck constant h was performed using a watt balance at the National Institute of Standards and Technology (NIST). The value is h = 6.626 069 79(30) × 10−34 Js. The relative standard uncertainty of this determination is 45 × 10−9.
Considering the problem of the complicated structure of smart power grid, the varied topology after fault and multi-data resources of fault information, this paper presents a novel hierarchical fault diagnosis approach for smart power grid with information fusion of multi-data resources based on fuzzy petri net, which contains diagnosis layers of the switch and the information fusion of multi-data...
In this paper, based on Lyapunov-Krasovskii functional approach and the decentralized control theory of interconnected systems, we consider the observer-based control design for a class of fuzzy descriptor interconnected systems. Firstly, the stability conditions of the T-S fuzzy model with a prescribed performance level are provided in theorem 1, but there is no efficient algorithm solving the inequalities...
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