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In Vehicular Grid Sensor Network (VGSN), because the operation of individual vehicles and mobile speed and direction, contact between them fragile and unstable. It has multicast links suddenly fail to overcome the problems, so that the message flows to each node, and increase the volume of traffic control. In this paper, we propose a fuzzy-based target tracking scheme that will re-route the link path...
Cognition researches based on face recognition are related to many areas, such as exploring human cognitive laws, psychology, cognitive neuroscience and machine vision, so face cognition is very important in both theory and practice. Based on research achievements of face cognition, this paper reviews facial expression cognition mainly in micro expression, reasons of cognition differences in facial...
A dual core wideband CMOS LC VCO has been designed and fabricated in TSMC 0.25µm RF CMOS 1P5M process. Using a combination of a switched capacitor array and a switched varactor array, this VCO achieves a frequency tuning rang of 800MHz to 1730MHz with a control voltage varying from 0.2V—2.2V, while maintaining a tuning sensitivity of less than 50MHz/V.The measured single-side phase noise is −120dBc/Hz...
Space-time block codes are considered as one of the prominent technologies for spatial diversity which is widely used to improve wireless system performance. However, an OFDM system with space-time block codes needs multiple fast Fourier transforms (FFT) posing an adverse effect on system computational load as the number of antennas and sub-carriers grows. Therefore, in this paper we employ a single...
In this study, we developed a game-based learning system on a social network platform to instruct customs and cultures in the English speaking countries in order to investigate the increase of learning willingness and motivation by using the digital game-based learning(DBGL) model. To determine the learning behaviors and results of the learning design which combines game-based and social network theories,...
In this paper, the nonlinearity generation mechanisms causing AM/AM and AM/PM in GaN power amplifier are analyzed from a circuit perspective. The nonlinear device transconductance is found to be the primary source of slow compression in GaN PA's AM/AM characteristic, while the nonlinear input capacitance is the primary source of AM/PM distortion. Using two 800 MHz GaN PAs, we show that matching networks...
In this paper, a bi-dimensional search method is proposed for unconstrained optimization problems. Traditional methods for solving the unconstrained optimization problems are usually based on one-dimensional search (or line search) to determine the step size as these methods only use one descent direction in each iteration. When two search directions are available in each iteration, conventional one-dimensional...
This paper expounds on the pruning of Volterra series used to linearize power amplifiers (PAs) exhibiting memory effects. This pruning approach starts with the identification of the minimum set of dominant kernels needed in the Volterra series modeling for a given PA. The pruned Volterra series is then applied to synthesize a digital predistortion (DPD) function. The proposed pruned Volterra series...
Traditional spiking neural networks (SNNs) uses simulated spiking neuron models for computation units. Action potentials (APs or spikes) are generated when the integrated sensory or synaptic inputs to a neuron reach a threshold value. However, spiking generation is not a deterministic process, making current models limited for their potentials and applications. Here we consider the effects of adding...
Modern life has a strong tie with ICT technology, so as to the sensing technology which has played an important role than before. Its application is somewhat more than we have learned, such as education. Meanwhile, with the advance of software/hardware and the popularity of the Internet, e-books have drawn much of attention. With the introduction of the sensing technology to e-readers, it instills...
This paper is based on the dynamics characteristics of the air-cylinder; develop the air-cylinder piston wear ring axial deflection with LuGre model, then use the MATLAB to simulate the axial deflection and get the relevance between axial deflection and cycles. Meanwhile, set up the air-cylinder piston durability experimental platform, achieve a large number of data and compared with simulation data,...
Mathematics is considered the foundation of development in science, technology, and thought, and its practicality for life is also evident. If it is possible to use student daily life experiences as the focus, combining mathematics with gaming, to incorporate the game context into mathematics instruction, it would enhance student interest in learning mathematics. At the same time, this would cultivate...
The construction of a nuclear power plant is a very complex systematic project, mainly including engineering, procurement, construction and start-up phases. Among those stages, engineering materials management is a fundamental and decisive job. In this paper, the engineering materials' properties are researched. In order to manage the engineering materials in VPRM efficiently, we proposed the nuclear...
A QoS aware control strategy is proposed to be employed in an optical packet switching for multimedia applications in this paper. The underlying switch, M-B-Quadro switch, is a multi-buffer switched delay line based optical switching node with the bypass lines. By employing a novel switch control mechanism, denoted as LQS, the switching node can not only resolve packet contentions effectively but...
Sequencing-by-synthesis is a novel technology which enables fast and affordable DNA sequencing. However, its accuracy is insufficient for most medical applications. The performance of sequencing-by-synthesis is fundamentally limited by imperfections in the underlying enzymatic process. We derive a mathematical model of sequencing-by-synthesis and develop a novel base calling method that relies on...
Modern lifestyle is closely associated with information technology, and sensor technology is particularly used, especially in learning and education. This study proposed a sensor-assisted learning system using sensor technology, in order to determine the learning retention of learners in the learning process, and further provide assistance or feedback. The identification rule of this system is constructed...
The use of waveguides or buffer rods (BR) is well known in performing Non-Destructive Testing (NDT) with ultrasonic or generally in high-temperature ultrasonic time domain reflectometry (TDR). However, determining optimal geometrical shapes of these buffers and parameters of the ultrasonic transducers are not straightforward. In this paper the signal to noise ratio (SNR) achieved with different combinations...
This research focuses on the explanation of the inner relationship between the active learning and learning performance. This essay adopts physical orientation, behavior orientation, cognitive orientation, humanistic orientation and social orientation to describe the learning process which leads to the excellent performance. Internal and external factors complete the learning process.
In this paper we explore the architecture of GPU-based volume ray-casting to control the cursor movements on surfaces of volume data only on the basis of their sampled scalar values. This method does not rely on building a tight proxy geometry nor computing local iso-surface parametrization. In this setting only a few instructions should be included in a ray-casting shader: at every fragment the depth...
In this study, we implemented a digital game-based learning (DGBL) system over Face book platform. For better understanding the impact of DGBL applied to social networking, the technology acceptance model (TAM) was employed for the evaluation. Results of this study showed that the DGBL incorporated into a social network website is a feasible and sound model for teaching. This study investigated the...
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