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This paper studies the stability and stabilization of switched Boolean networks (SBNs) with impulsive effects. The dynamics of SBNs with impulsive effects is converted to an algebraic form, based on which, some criteria are presented for the stability of SBNs with impulsive effects. These conditions include the arbitrary switching signal case and the state feedback switching signal case. In addition,...
This paper proposes a low-power, small formfactor all-digital RNG utilizing a concept of capacitive coupling between two ROs to amplify jitter and a dual-edge sampling scheme to increase the data rate. It is the most useful in battery-powered IoT applications where both energy and silicon area are critical constraints. The capacitive coupling effect with all digital circuit allows our design to operate...
As a state-of-the-art ensemble method, random forest which exhibits a good ability to predict and generalize on various dataset is often composed of a large number of trees. Redundancy of ensemble and connotative decision rules result in expensive operational costs as well as difficulties in comprehension. In this paper, novel leaf node-level pruning methods for random forest are proposed. Each leaf...
This paper deals with the identification problem of a linear parameter varying (LPV) model with a noisy (uncertain) scheduling variable. An autoregressive exogenous (ARX) model is used to describe the system behavior and a nonlinear state-space model is used to model dynamics of the noisy scheduling variable. The uncertain scheduling variable is estimated by using a particle smoother, which is based...
This paper analyzes the stator windings turn-to-turn fault tolerant capability on inverter-fed permanent magnet (PM) machines. By adding a secondary neutral point (NP) in stator windings, both the fault detection and tolerant capability can be improved considering a small turn-to-turn short at early stage. From the perspective of fault detection, the proposed two NP's windings increase the equipment...
For a better understanding of how different diseases (e.g. neurovascular diseases, neurodegenerative diseases, and musculoskeletal pain conditions) affect human motor function, a uniform, standardized and objective evaluation is a desirable goal expressed within the clinical community. We explore the capabilities of an augmented reality (AR) game that uses free hand interaction to facilitate an objective...
Convolutional Neural Network (CNN) has led to significant progress in face recognition. Currently most CNNbased face recognition methods follow a two-step pipeline, i.e. a detected face is first aligned to a canonical one predefined by a mean face shape, and then it is fed into a CNN to extract features for recognition. The alignment step transforms all faces to the same shape, which can cause loss...
Social data from online social networks is expanding rapidly as the number of users and articles posted increases, making public opinion analysis a greater challenge. Real-time topic detection is a key part of public opinion analysis. The complex data processing involved in traditional clustering and text categorization can lead to time delays in topic detection. In this paper we construct similar...
In wireless network systems, time of arrival (TOA) scheme is always needed to implement the self-localization of the user manual. If multiple positions of interest exist, the Cramer-Rao lower bounds (CRLBs) of TOA localization in these positions are determined by the deployment of the base stations. The design of base station placement is addressed in this paper; and rather than the exhaustive method...
The increased penetration of distributed and volatile renewable generation requires the demand-side to be actively involved in energy balancing operations. This paper proposes a solution in which big data and machine learning methods are employed to enhance the capabilities of a Virtual Power Plant to participate and intelligently bid into a demand response energy market. The energy market being investigated...
Razor is a milestone in the field of Error Detection&Correction strategies for low-power operation. Despite the impressive level of maturity, its application on circuits other than pipelined processors still remains an open issue. Firstly, the error detection mechanism relies on special flip-flops (FFs), the Razor-FFs, whose use imposes heavy hold-time fixing and large circuit area/power overheads;...
Traditional substation station power are taken from the grid system, power consumption is relatively large, not only increases the power loss, but also the consumption of nonrenewable energy. With the development of micro-network technology, more power users tend to use the new micro-grid power supply mode to improve power supply reliability. In this paper, the power supply system of 500kv substation...
This paper proposes a convenient approach to control the electromagnetic waves inside horn antennas to improve their radiation performance by placing a metasurface lens inside the horn. The lens consists of two identical metallic dipole arrays printed on both sides of a single dielectric layer. Through full-wave electromagnetic simulations, a comparative study of the enhanced radiation properties...
A novel structure of meta-surface with the function of high gain polarization conversion is proposed and studied. The meta-surface consists of 16 radiating elements, which are 4×4 periodically arranged under the Rogers substrate. In this paper, the high gain and radiation conversion mechanism of meta-surface are analyzed from the aspects of transmission phase and transmission amplitude of the microwave...
In this paper, the general of artificial electromagnetic structure with analog to the natural materials were briefly reviewed. The lattice theory of artificial structure was suggested to be built.
Wearable equipment in recent years has been rapid development. But the hardware manufacturing complexity and the high cost is a real problem. This paper introduces a microprocessor cluster with both hardware design principle and related distributed software design methods. This cluster has the characteristics of low cost, high reliability, flexible hardware and software system structure, low power...
Sn-3.0Ag-0.5Cu lead-free solder, PCB copper clad laminate and copper thin film substrate were used as experimental materials and the Cu/SAC305/Cu interconnection plate-level structure micro-solder joint was prepared by pulsed hot-pressing welding test. The author aimed at investigating the pulse welding time, pulse welding temperature and welding pressure which influence on the microstructure of solder...
In this paper, we present a measurement campaign of indoor massive MIMO channels by using a wideband channel sounder and a rectangular large-scale array with 256 elements. The measurements are conducted at 11 GHz, with a bandwidth of 200 MHz, and the light-of-sight (LOS) scenario is considered. Some basic channel parameters, including shadow fading, delay spread and coherence bandwidth, are extracted...
Lightning strikes at converter station will threaten the safety and reliability of communication equipment by rising the substation grounding grid potential and radiation field. This paper analyzes the coupling mechanism of communication signal line based on E1 signal cable model and transient solution method when a lightning strike occurs. This paper established frequency variable transmission line...
The Ackley function is a continuity test function obtained by superimposing the cosine function of the exponential function of the exponential function, which is characterized by a nearly flat region with cosine wave modulation forming a hole or peak, which makes the surface undulating. Because of the unique function of Ackley function, the search of Ackley function is very complicated because a strict...
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