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We present a novel method for multiplexed on-chip integrated sensor-array, which are based on ultracompact one-dimensional photonic-crystal nanobeam cavities with ultrahigh-Q and very large-free-spectral-range (LFSR, ∼200nm). The high refractive-index sensitivities of 166.4nm/RIU can be achieved.
An accurate modeling method for electric parameters prediction of CSR (Contactless Slip Ring) is proposed in this paper. Parameters of CSR can be conveniently obtained before simulation and prototype design. In order to increase the accuracy of the predicted electric parameters, the main flux are corrected by taking the partially coupled flux into account, and the leakage inductance is obtained by...
Electrical resonance with the grid is an increasingly common problem for wind turbines and PV inverters, especially those connected to a weak grid. Such resonance problems can usually be solved by modifying turbine or PV inverter control to reshape its output impedance. There are, however, situations where this may not be effective or not feasible at all due to e.g. limitations in turbine design or...
A health monitoring method using the saturationregion resistance is proposed in this paper to identify the level of aging associated with power semiconductor switches inside a Boost converter. Power MOSFETs are one of the most age-affected components in power electronic converters, and the on-resistance has been proved to be the most significant aging factor in power MOSFETs. However, the small value...
Mobile applications with complex GUIs are very popular today. However, generating test cases for these applications is often tedious professional work. On the one hand, manually designing and writing elaborate GUI scripts requires expertise. On the other hand, generating GUI scripts with record and playback techniques usually depends on repetitive work that testers need to interact with the application...
Based on the analysis of current conditions and shortages of the configuration files management in smart substation, the problems existing in current conditions are proposed, such as: ICD test technology, SCD test technology, SCD difference comparison technology. In order to meet the demand of the large scale smart substation construction, a solution of building the smart substation configuration...
Named Data Networking (NDN) is a clean state Internet paradigm that considers some security primitives in its original design, and one of the promising candidates for the future Internet architecture. However, it may suffer from the specific threats such as Interest Flooding Attacks (IFA). Most researches are focused on the defense against fake IFA, where the PIT resources in victim routers are exhausted...
Coordination problems including miscoordination and relative overgeneralization are difficult to overcome especially in dynamic and stochastic environments. In the practical scenario, there may be a large number of agents, and the interactions between agents may be sparse and unfixed. In this paper, we study the coordination problems and stochastic rewards under the social learning framework where...
Adaptive dynamic programming (ADP) is a prevalent way to solve the coupled Hamilton-Jacobi-Bellman (HJB) equations of the optimal consensus control for multi-agent systems (MAS). Neural networks (NNs) are normally used to approximate the value functions in ADP. However, NNs with manually designed features may influence the approximation ability. In this study, kernel-based methods which do not need...
In this paper, two types of dual-mode dielectric resonators (DRs) are utilized to design miniaturized differential bandpass filters (BPFs). According to the boundary conditions of the electromagnetic fields, inserting a metal plate on the electric field's symmetry plane doesn't disturb the original field distributions. Thus, the structure of each employed DR is introduced by cutting off along the...
Moving object detection is very important in the development of smart city for Visually Impaired People (VIP). In this paper, we propose a new methodology to realize a moving object detection system from TV based on passive radar which is applied to RFID Intelligent Cane in future. Image comparison and detection methods are also applied to complete the detection system. The innovation of our detection...
The pathological or physiological changes of the crystalline lens directly affect the eye accommodation and transmittance, and then increase the risk of the presbyopia and cataract for people in middle and old age groups. There is no universally accepted quantitative method to measure the lens' mechanical properties in vivo so far. This study aims to investigate the possibility of assessing the age-related...
The pathological or physiological changes of the crystalline lens directly affect the eye accommodation and transmittance, and then increase the risk of the presbyopia and cataract for people in middle and old age groups. This risk has a remarkable rise with age, seriously influencing the living quality of the elderly, and also posing a huge burden on public health. There is no universally accepted...
Non-alcoholic fatty liver disease (NAFLD) is a major health concern due to the increasing obesity epidemic and it has the risk to progress to liver fibrosis, cirrhosis and hepatocellular carcinoma. It is important to assess the severity of hepatic fibrosis for the risk-stratified management of patients with NAFLD. Ultrasound elastography is a new technique for evaluation of liver fibrosis and it has...
Hepatic steatosis is an important histologic factor in non-alcoholic fatty liver disease (NAFLD) spectrum. The aim of this study is to evaluate the impact of steatosis on liver fibrosis stiffness measurement by acoustic radiation force impulse (ARFI) elastography. Meanwhile, the dynamical mechanical analysis (DMA) test is performed to quantify the mechanical behavior of rat livers. The rat models...
Piezoelectric ceramics(PZT)actuator has been widely used in flexure-guided nanopositioning stage because of their high resolution. However, it is quite hard to achieve high-rate precision positioning control because of the complex hysteresis nonlinearity effect of PZT actuator. Thus, an online RELM algorithm with forgetting property(FReOS-ELM) is proposed to handle this issue. Firstly, we adopt regularized...
Jet dispensing is one of the key technologies in LED packaging as the consistency of the dispensed volume can directly affect the LED color and quality. Studying the dynamics of silicone-phosphor during the jet dispensing process is of great value. In this paper, a multi-physical model was developed and verified by the experiments. The silicone-phosphor thread profile during the jet dispensing process...
In the past decade, Convolutional Neural Networks (CNNs) have been demonstrated successful for object detections. However, the size of network input is limited by the amount of memory available on GPUs. Moreover, performance degrades when detecting small objects. To alleviate the memory usage and improve the performance of detecting small traffic signs, we proposed an approach for detecting small...
Motion control system is the core component of high density packaging equipment, the characteristics of its movement performance directly determines the performance and quality of the high density packaging equipment. Based on this, this paper presents a method to enhance the dynamic performance and setting performance of motion control system by means of fine tuning for the movement parameters of...
In this work, the high temperature (up to 375°C) dynamic characteristics of 1.2kV SiC VDMOS, including the gate charge, the switching and the body diode reverse recovery characteristics, are measured and analyzed in detail. The experiments show that, with the increase of temperature, the Miller plateau declines, the reverse recovery charge rises, the turn-on time decreases and the turn-off time increases...
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