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Nowadays, open data has become more and more popular and is widely used in a variety of service domains. However, in Taiwan, most open datasets are still separate while linked open data (LOD) is still lacking. Without LOD, application developers are difficult to locate and combine appropriate open datasets to create innovative applications. Therefore, to facilitate the consumption and the spreading...
Conventional closed-form homogenizing rules may be not accurate if the contrast of material properties is high, such as the case of ferrite tiles with gaps used in EMC anechoic chambers. A new homogenization method is proposed to handle such extreme cases. It uses the field solution of a single unit cell illuminated by a plane wave incident in the normal direction. By doing this, the physical interactions...
An alternative method to compute the free space antenna factor using time domain transformation and deconvolution filter for pulse compression is proposed. The deconvolution filter helps in compressing the time domain pulse to distinguish the direct wave from the reflected wave and help evaluate the free space antenna factor for site validation of fully anechoic rooms. The antenna pair of ETS-Lindgren...
• It has been shown that measured SVSWR is smaller than peak SVSWR. The measured SVSWR covers approximately 75% of the SVSWR • An method is shown to use a moving window to estimate the real SVSWR level. The site contribution to emissions measurement MIU can be derived based on the full knowledge of the SVSWR. • SVSWR of the back half of the QZ is not currently considered by the standard, but the levels...
Guidance on accounting for site imperfections in the uncertainty evaluation of emissions measurement result is provided by CISPR 16-4-2. Site Voltage Standing Wave Ratio (SVSWR) results from the chamber are used as the basis for estimating the uncertainty contributions due to the site. In this paper, we investigate two aspects of the uncertainty evaluation, and provide a method to estimate the uncertainties...
Multi-dimensional magnetic resonance spectroscopy is an important tool for studying molecular structures, interactions and dynamics in bio-engineering. The data acquisition time, however, is relatively long and non-uniform sampling can be applied to reduce this time. To obtain the full spectrum,a reconstruction method with Vandermonde factorization is proposed. This method explores the general signal...
This paper reports on the impact of UAV swarm density and heterogeneity on synthetic aperture DoA convergence. The synthetic aperture is derived from the displacement of distributed UAVs (agents) operating in a sparse volumetric swarm. Heterogeneity arises from the changing orientation of an agent's antenna and receiving pattern function as it swarms in the distributed cluster of agents. This alters...
Magnetic resonance spectroscopy has many important applications in bio-engineering while acquiring high dimensional spectroscopy is usually time consuming. Non-uniformly sampling can speed up the data acquisition but the missing data points have to be restored with proper signal models. In this work, a specific two dimensional (2D) magnetic resonance signal, in which the first dimension lies in frequency...
A new fast static security analysis algorithm, based on the interval analysis theory and probability theory, is proposed to improve the efficiency and accuracy of security analysis during power network interaction. In this paper, the characteristics of network interaction and uncertainty in the interaction process are illustrated firstly. After that the dimension reduction technique is employed in...
The problem of passivity is discussed in this paper for reaction-diffusion Cohen-Grossberg neural networks (CGNNs) with multiple time-varying delays. By constructing suitable lyapunov functionals and employing some inequality techniques, several sufficient conditions guaranteeing the passivity of CGNNs are obtained. Furthermore, several criteria for robust passivity are also derived for the case that...
This paper investigates the synchronization problem of nonlinearly coupled reaction-diffusion neural networks (NCRDNNs). By utilizing Lyapunov functional combined with several inequality techniques, a criterion for synchronization of NCRDNNs is presented. With designed pinning scheme, the synchronization problem of NCRDNNs is further discussed and a sufficient condition for pinning synchronization...
The increasing popularity of blockchain-based cryptocurrencies has made scalability a primary and urgent concern. Compared with the completely open, uncontrolled public blockchain system, private blockchain can provide better access control management. This paper proposes an architecture for distributed private blockchain. At the same time, we propose three strategies to improve the scalability of...
An efficient method is presented to numerically model anechoic chambers ranging from VHF to microwave frequencies. In this method, an approximate image theory is proposed to improve the accuracy of plane wave assumptions used at lower frequencies. At high frequencies, an efficient image-based ray tracing algorithm is developed which integrates with the approximate image theory seamlessly. Numerical...
WAMS(Wide-area Measurement System) is one of the most potentially effective techniques to damp inter-area low frequency oscillations in power systems. This paper studies the data corruption phenomenon which is ubiquitous in WAMS and establishes the unified model of time-delay and data-loss. Then DTA(Damping Torque Analysis) index considering time-delay and data-loss is deduced based on the previous...
The retrieval and the composition of information from multiple apps, services, or local resources can be time-consuming, costly, and inconvenient. To build an effective, efficient, and easy-to-use mobile service composition and delivery approach, in this research, we propose an approach called CARSB (Composite App with RESTful Services and Bricks). In CARSB, we introduce the concept of Service Brick,...
In recent years, the application of solder interconnections in some special electronic products and the requirement for solders with higher reliability has promoted the emergence of novel interconnect materials. Arising from increasing demand for portability and miniaturization in electronic products, two key fundamental factors have been identified as causes of reliability problems: 1. thermal stress,...
The trend for wide bandgap high-density power modules is the monolithic integration of low voltage wide bandgap driver circuits with high voltage power devices into a single package to reduce the parasitic from interconnects and increase the power density. With both high voltage and low voltage components in the same package, the protections of integrated circuits and system becomes very challenging...
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