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.
A good benchmark suite should provide users with inputs that have multiple levels of fidelity. We present a framework that takes the novel view that benchmark inputs should be considered approximations of their original, full-sized inputs. The paper demonstrates how to use the proposed methodology to create several simulation input sets for the PARSEC benchmarks and how to quantify and measure their...
This paper presents and characterizes the Princeton Application Repository for Shared-Memory Computers (PARSEC), a benchmark suite for studies of Chip-Multiprocessors (CMPs). Previous available benchmarks for multiprocessors have focused on high-performance computing applications and used a limited number of synchronization methods. PARSEC includes emerging applications in recognition, mining and...
In order to solve the problem of the lubrication failure of bearing in Control Moment Gyroscope, this paper designs a kind of bearing lubricating device based on piezoelectric micro-jet theory. The lubricating oil is ejected by the device and then act on the bearing depend on the pressure waves which generated by piezoelectric vibrator. The piezoelectric vibrator is assembled by a piezoelectric ceramic...
The DC microgrid is a kind of development trend, and it can obviously improve the power quality and efficiency compared with adding the DCAC and ACDC converters for the dc loads. In the DC microgrid, the dc bus voltage can be affected by many factors, such as the variation of grid power, the fluctuations of the distributed generators (DG) and the multiform storage devices. All of the plug and play...
Static synchronous series compensator (SSSC) based on the cascaded H-bridge multilevel converter is used as the power flow controller by injecting controllable sinusoidal voltage into the high voltage AC transmission lines. After analyzing the basic working principle of the cascaded H-bridge multilevel SSSC, a hierarchical control strategy with multiple control loops is proposed in this paper. At...
Real-time functional magnetic resonance imaging (rtfMRI) is an emerging approach for studying the functioning of the human brain. Computational challenges combined with high data velocity have to this point restricted rtfMRI analyses to studying regions of the brain independently. However, given that neural processing is accomplished via functional interactions among brain regions, neuroscience could...
The three-level (3L) Active Neutral-Point-Clamped (ANPC) topology has been introduced to resolve the uneven loss distribution issue in the classical 3L Neutral-Point-Clamped (NPC) topology. The Pulse-Width-Modulation (PWM) strategy is then an important means to fully explore the potential benefits of the 3L-ANPC topology. This paper presents a novel loss balancing modulation strategy — Splitting Switching...
Pictures and videos from social events and gatherings usually contain multiple people. Physiological and behavioral science studies indicate that there are strong emotional connections among group members. These emotional relations among group members are indispensable to better analyzing individual emotions in a group. However, most of the existing affective computing methods focus on estimating...
The era of big data has spawned unprecedented interests in developing hashing algorithms for their storage efficiency and effectiveness in fast nearest neighbor search in large-scale databases. Most of the existing hash learning algorithms focus on learning hash functions which generate binary codes by numeric quantization of some projected feature space. In this work, we propose a novel hash learning...
With the ubiquitous sensing enabled by wireless sensor network technologies, Internet of Things (IoT) is developed to many areas of modern day living. The inexpensive IoT devices and platforms capable of wireless communications enable the ability to measure, infer and understand environmental indicators, from delicate ecologies and natural resources to urban environments. In this paper, we firstly...
This paper presents a parallax-aware image stitching approach under large occlusion/disocclusion. Different from previous research, we explore the image stitching issue in a parallax-aware perspective via local alignment. Specifically, we first label each feature point with a probability of being large parallax by developing a graph-based optimization framework. Afterwards, an integer programming...
Based on the related psychological and physiological advancement, a just noticeable disparity difference (JNDiD) model for 3D displays under the assumption that eyes converge at the virtual object is presented in this paper. Specifically, according to whether the surface of the virtual object is perceived to be blurred, the perceived depth space is divided into three regions. Furthermore, a three-phase...
In order to suppress the zero sequence circulating currents (ZSCCs) between parallel operating three level voltage source inverters with common AC and DC buses, a common mode voltage reduction PWM (CMVR-PWM) technique and neural point potentials (NPPs) control based method is proposed in this paper. An equivalent model of ZSCC is developed, and two excitation sources of ZSCC, differences of common...
At present, the checking and designing of SCD's virtual terminal in smart substation are used by hand, and their rationalities are not easy to be verified. This paper studied a kind of searching and analyzing method of device virtual links based on historical SCDs. The virtual links are extracted from a number of existed SCDs, and stored into the database as the templates. For the SCD's receiving...
Nowadays, in order to guarantee both system performance and power efficiency, the resistance of nonlinear distortion produced by power amplifier (PA) has been a key issue in the wireless communication research. The traditional predistortion methods require prior knowledge of the amplitude, phase or bandwidth of the input signal, which is not very practical in the real world. To overcome it, we put...
DC voltage control is crucial for the multi-stage converter, because it contributes to reduce the DC capacitance and improve the reliability of the whole system. A combined control scheme, induding two parts, is proposed in this paper for controlling the two DC bus voltages respectively in the Energy Router. Firstly, the energy feed-forward control scheme is used to control the low voltage DC bus,...
Modular multilevel converter (MMC) has drawn tremendous attention in the academia and industry since its invention, and it is considered as a very suitable solution for the high-power applications. It is usually composited by a large number of half-bridge or full-bridge sub-modules (SMs), which makes the reliability as one of the most important challenges for MMC. Besides, due to the DC side short-circuit...
Automatically recognizing pornographic images from the Web is a vital step to purify Internet environment. Inspired by the rapid developments of deep learning models, we present a deep architecture of convolutional neural network (CNN) for high accuracy pornographic image recognition. The proposed architecture is built upon existing CNNs which accepts input images of different sizes and incorporates...
In this paper, we propose an intelligent nursing bed system which is controlled by a hybrid brain-computer interface (BCI) involving steady-state visual evoked potential (SSVEP) and P300. Specifically, the hybrid BCI includes an asynchronous brain switch based on SSVEP and P300, and a P300-based BCI. The brain switch is used to turn on/off the control system of the electric nursing bed through idle/control...
Polymer solar cells (PSCs) have attracted considerable attention because of their potential advantages of low cost, light weight, flexible fabrication and low-temperature solution processing technique. After the bulk heterojunction (BHJ) architecture was introduced into PSCs, the PCE had promptly increased quickly from 1% to 10% by designing polymer structures and optimizing device fabrication technologies...
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.