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This paper develops a novel reconfigurable architecture, CMOS-nanorelay FPGA (cFPGA) by integrating carbon nanorelays with CMOS devices to function as FPGA components. cFPGA is a highly efficient architecture, providing 2X density and standby power improvement along with a 30% dynamic power reduction as compared with solely CMOS FPGA circuits. This performance improvement is achieved by using 2T1N...
Based on the analysis of the relationship between the actual weight and the pseudo-weight of the rational square-root B-spline based PDF model, this paper presents a new method to the modeling of the rational square-root B-spline based PDF model and the controller design is discussed based on the model. Both the modeling and controller design algorithms are applied to the simulation study of the molecular...
Open-short-load (OSL) compensations are the most popular correcting technique used in impedance measurement instruments for minimizing measurement errors before outputting the final results. This paper presents a practical OSL compensation model for a new developed bipolar bioimpedance spectrometer (BIS) system. The experiment shows that after the OSL compensation, the mean error of impedance magnitudes...
A new second order sliding mode tracking controller (SOSMC) is presented for a kind of piezoelectric actuator (PEA) model with hysteretic nonlinearity. The second-order nonlinear dynamic model of the PEA is introduced and a second order sliding mode control law with dual-phase sliding movement is designed. In order to prove the system's stability, a determinant theorem is presented. By theoretical...
Based on the static strength calculation, the fracture reason was examined for the last stage moving blades of an Extraction Condensing Steam Turbine (ECST) in a power plant. The calculations revealed that the original blade design was unreasonable, which resulted in the compound stress exceeding the material allowable stress. The study was focused on redesigning the broken moving blade by means of...
A new neural network model to predict hysteresis output in piezoelectric actuator is presented. An improved Preisach operator description is given and analyzed in detail. The hysteresis model is implemented with a Neural Network Model to construct a classical Preisach model. The experiment results show the validity for predicting the output of hysteresis in the piezoelectric actuators.
A retrofit solution of mixing warm flue gas extracted from reversing chamber into the coal pulverizing system is provided so as to prevent the problems of the bituminous boiler caused by lignite blending in the bin and feeder coal pulverizing system. The radiant heat transfer with zone method in isotropic scattering media is established to simulate the temperature profile of the HG-670/140-9 boiler...
Presently, serial dilution microfluidic chip attracts tremendous interests due to the important applications in generating logarithmic concentration gradients in chemical and biochemical experiments. In this work, effects of fabrication errors on the dilution performance were numerically studied and several guiding principles for the device design were presented. Based on the microfluidic resistance...
In this paper, a review focused on the control theory of induction machines (IM) is presented. Then, the influences of dead time and voltage drop of switching devices are discussed. Consequently, considering both effects of dead time and voltage drop, an improved stator flux observation strategy for the direct torque controlled (DTC) EVI drive system is proposed. A simulation model is developed and...
As an excellent thermal isolation approach, deep trench filled by parylene C has been widely used in versatile MEMS devices. Requirement of void-free trench filling in these applications called for a deep understanding of the parylene C deposition in high aspect ratio trenches. In this work, a molecular effusion-Boltzmann model is advanced to predict the parylene C filling behaviors. Numerical simulation...
As one of the candidates of the next generation non-volatile memory(NVM), phase change memory(PCM) has been paid more attention. However, there are still many open issues such as numerical simulation to study. Phase transition is a temperature based process, which can be simulated by temperature profile generated by the device simulator coupled with the phase transition model. In this work, a phase...
Anomaly detection in peer-to-peer (P2P) networks is generally difficult due to the large number of users in the network. Exhaustive probing on each user is extremely unrealistic. Besides, unlike hierarchical systems, the infrastructure of a P2P network is flat, which makes multi-casting based probing schemes impossible. Most P2P security research focus on proactive prevention schemes to secure the...
This paper proposed a LDA-based cross-language retrieval model that did not rely on word-by-word translation of query or document. Instead, a parallel corpus was used to estimate a cross-language LDA (Latent Dirichlet Allocation) model. We assumed that a topic variable Z in LDA could generate both an English token and a Chinese token, given that the parallel corpus contained two languages: English...
Motor and its control technology is one of main components of Hybrid Electric Vehicles (HEV). To meet the fast torque response demands of HEV, rotor flux-oriented based vector control algorithm with simulation model is concerned and modular design for hardware and software of controller is present in the paper. Series of anti-jamming and vibration isolation measurements are taken especially to ensure...
This paper presents a variational approach for bias correction and boundary delineation of synthetic aperture radar (SAR) images with intensity inhomogeneity. The bias fields in SAR images might have a negative impact on boundary delineation. Our approach is implemented by two steps within a unified framework of energy minimization. First we propose a deviation correction method in which no physical...
The daily clearing price curve in electricity market varied with multi-period and strong fluctuation characteristic. When grey GM (1, 1) model is used in forecast, the forecast error exceeded the permitted precision. This is because GM (1, 1) model is invalidated only if the price series did not follow the rule of exponential growth. In this case, grey model with period residual modification is proposed,...
Monte Carlo Method has been proven very successful for non-linear and non-Gaussian estimation problems. However, a Monte Carlo filter usually has a lot of samples, which increase the computational load greatly. This paper presents threshold constraint into Monte Carlo. The target model is defined by the color information of the tracked object. Use the Bhattacharyya coefficient to get the similarity...
It is found that the food price rising are the main reasons to promote the overall price level from operational features of the consumer price index (CPI). The food and energy supply shortage and pork price rising are the direct reason of the China price index rising recently. We study the dynamic relations among money supply growth, deposit reserve ratio, raw materials price and CPI index through...
A robust fault-tolerant controller integrating fault detection and compensation for flight control surfaces failures is discussed, a method is proposed using the extended state observer compensating the faults. The complete system comprises of two controllers. The main controller is designed for high performance of the original faultless system. The compensating controller is based on a nonlinear...
The machining coordinate system of spiral bevel gear milling machine tool is established based on the principle of solving conjugate surfaces and the machining mechanism of spiral bevel gear. The digitized conjugate tooth surface model of spiral bevel gear also is established with the rotary projection principle, the spatial coordinate transformation principle, and solving the meshing equation of...
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