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A cyber-physical system (CPS) approach for branch and bound algorithm based direct model predictive control (BnB-DMPC) for grid-tied Active Front End (AFE) power converters is proposed in this work. The proposed control strategy deals with both the physical states and a cyber state, i.e. the sampling frequency. With the help of cyber controller, the cyber resource and sampling rate are regulated based...
Through Silicon via (TSV) technology makes the stacked chip to achieve the shortest distance of interconnection in vertical direction (z direction). However, there are many challenges for TSV wafer processes. One of the challenges is TSV wafer backside grinding process. In this paper, a predictive model was introduced to calculate the normal grinding force, and a dynamic finite element modeling methodology...
In this work, a physics-of-failure (PoF) reliability prediction methodology is combined with statistical models to consider the interaction between the lumen depreciation and catastrophic failures of LEDs. The current in each LED may redistribute when the catastrophic failure occurs in one of LEDs in an array, thus affecting the operation conditions of the entire LED array. A physics-of-failure based...
With the vast resource and techniques increasingly available to attackers, application layer DDoS (App-DDoS) attacks have become a serious threat to webserver. In order to deal with this kind of complex and varied attacks, a novel approach based on time series prediction model is proposed, which includes the following work: Firstly, App-DDoS attacks are divided into flooding attacks and asymmetric...
In view of the light-emitting diode (LED) and its life prediction, despite its currently wide use, IES TM-21-11 parametric life prediction method is incapable to extrapolate under multidimensional conditions (include working environmental conditions). This paper presents a multidimensional back propagation-neural network (BP-NN) based life prediction method which considers different driving currents...
Weighted prediction (WP) is an efficient tool for encoding of video with brightness variations, if WP parameters can be estimated accurately. In this paper, an improved estimation method for WP parameters of advanced video coding system (AVS) is proposed. To find a best matching block in reference for current block to be encoded, a motion search scheme is presented. Each block in a searching window...
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