The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The gate dielectrics reliability in Tunnel FETs (TFETs) has been thoroughly investigated for the first time, which is found to be the dominant device failure mechanism compared with bias temperature ins tability degradation, and is much worse than MOSFETs with the same gate stacks due to a new stronger localized dielectric field peak at gate/source overlap region. The non-uniform electric field of...
In this paper, we propose a novel method for plant identification using a multiscale crossing representation of leaf contour and venation. By extracting the combined features in multiple scale, the proposed method is capable of representing features from global to local regions with mirror, scale, translation and rotation invariance. Three leaf datasets including the Swedish Leaf dataset, the Flavia...
Wireless Power Transfer (WPT) has received more and more attentions because of its convenience and reliability. In this paper, we first propose the notion of omnidirectional charging by which an area is omnidirectionally charged if a device with directional antennas at any position in the area with any orientation can be charged by directional chargers with power being no smaller than a given threshold...
Smart meter is one of the key components of smart power grids. The recent interest of smart meters adoption has created two research directions that are in conflict of each other in terms of data collection and user privacy, i.e. appliance identification from the measurements of smart meters and the privacy compensation for such measurements. This paper proposes a dynamic threshold algorithm (DTA)...
In this paper, the received signal of accelerated moving target on three directions is modeled as a cubic phase signal (CPS) for distributed space-borne SAR, and the cubic phase function (CPF) method is used to estimate the parameters of accelerated moving target. The simulation results show that the cubic signal model is reasonable, and CPF provide a better performance for the estimations of velocities...
In this work, a novel deep-impurity-level assisted tunneling technology with enhanced band to band tunneling (BTBT) probability is proposed and experimentally demonstrated. Through implanting deep level impurities in the tunnel junction, continuous deep level states can be introduced to facilitate the BTBT process for significant BTBT probability boosting. Compared with conventional tunnel diodes,...
As a new technology platform, the microfluidic concentration gradient chip (CGC) has recently attracted a large amount of interest in the field of biomedical engineering such as drug screening, chemical synthesis, trend research, cell apoptosis etc. In this work, a 4-inlet, 36-outlet stereo networks microfluidic CGC was brought forward and fabricated by 3D printing technology. Numerical simulations...
Wind power generation is a renewable energy which has a big development potential. It has been paid attention worldwide in recent years. Condition monitoring of wind turbine large equipment become an important component of wind power research field. A new data visualization method based on Random Forest is proposed in this paper. It clearly demonstrates the structure of data distribution that makes...
Human action/interaction recognition has wide appliances in video surveillance. Spatial and temporal information representation is the key issue of this topic. A framework called Long-term Residual Recurrent Network (LRRN) for human interaction recognition is proposed in this paper. The framework has an advantage of incorporating spatial and temporal features. Spatial feature is generated from Residual...
This paper describes a low temperature drift Z-axis silicon gyroscope with a low temperature sensitivity interface circuit. The gyroscope's temperature drift is optimized from two aspects: MEMS structure and its interface circuit design. Firstly, the sources of zero rate output(ZRO) are analyzed, and then we point out that improving the stability of demodulation phase can reduce thermal drift effectively...
When the single earth-return line of HVDC (High voltage direct current) system is functioning, the AC system in the same area will probably be influenced. Because two converting station at different DC potential constitute a loop via transmission line, causing certain direct current moving into the transformer neutral point and winding. The transformer DC magnetic biasing phenomenon will appear, leading...
This paper first briefly introduces the basic structure of converter transformer, analyses the mechanism of vibration through simulation of the converter transformer oil-tank, designs the test scheme. This paper introduces the application of wavelet analysis method in converter transformer fault identification, then apply these methods to 24 converter transformers to obtain the characteristics parameters,...
The intelligent virtual character in games or some virtual environments has became more and more popular. To make it more natural and believable, endowing it with not only intelligence but also affection is very necessary. This paper proposes an affective computing model based on Fuzzy Rules, which can basically help the virtual character to simulate human emotions. The model can generate different...
The thermomechanical stress characteristics in high-power 808-nm AlGaAs/GaAs laser diode bars were investigated experimentally and theoretically using infrared thermography and finite element method in detail. The transient thermomechanical stress curves changing with total operation current were measured using infrared thermography. The results indicated that thermomechanical stress of laser diodes...
Multiple-kernel k-means (MKKM) clustering has demonstrated good clustering performance by combining pre-specified kernels. In this paper, we argue that deep relationships within data and the complementary information among them can improve the performance of MKKM. To illustrate this idea, we propose a diversity-induced MKKM algorithm with extreme learning machine (ELM)-based feature extracting method...
In this paper, we propose a novel method to improve the accuracy of information weighted consensus filtering (IWCF). Recently, the IWCF was introduced for the distributed estimation in the scenario of target tracking using a camera network. In contrast to other consensus methods, the IWCF can overcome the naivety and redundancy problems which exist in many real applications. Furthermore, the IWCF...
This paper presents a silicon oscillating accelerometer (SOA) with CMOS readout circuit. To reduce the bias instability, a PLL is employed to sustain the oscillation instead of the conventional auto-amplitude-control (AAC) circuit. A sigma-delta frequency-to-digital converter (FDC) is built in the PLL to produce the digital output. The MEMS sensor and readout circuit are fabricated in 80 µm SOI and...
Route planning system of smart vehicles based on monocular vision could be applied to monitor the production line in industrial field. This system has achieved much functionality including image processing, monocular vision range finding, virtual map generating, global route planning and obstacle avoiding, etc. In this paper, we present an optimized ant colony algorithm based on ground colors and...
Underwater vehicles have been developed over the last six decades for potential uses in scientific, commercial, environmental, and military purposes, and always utilized to perform difficult tasks in cluttered environments such as deep-sea mining, underwater sampling and oceanic investigations. Since underwater vehicles have nonlinear and highly coupled dynamics, motion control can be difficult when...
This paper introduces a novel nondestructive testing (NDT) method based on laser ultrasonic technology and fiber Bragg grating (FBG) sensors. A FBG sensor is employed as discrete sensing elements to detect the ultrasonic generated by pulsed laser. An all-fiber and adaptive acousto-ultrasonic (AU) monitoring system for the dynamic detection of impact damage is developed for the present work. A tunable...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.