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Since the operating expense is crucial to the increasingly popular cloud gaming services, server consolidation is one of the key technologies for the success of these services. In this paper, we conduct extensive experiments using real GPUs and a complete cloud gaming platform to answer the following question: Are modern GPUs ready for cloud gaming? Our experiment results show that modern GPUs have...
This paper presents a low-voltage and energy-efficient 10b SAR ADC which manipulates charge recycling switching method for saving the switching energy. In additional, a window-based reconfigurable comparator is used to achieve fast comparison and small power dissipation. The proposed 10b SAR ADC operates at 100kS/s with 0.4V supply voltage in 90nm CMOS. The measurement results show that the prototype...
Simultaneous imaging systems combining positron emission tomography (PET) and magnetic resonance imaging (MRI) have been actively investigated. A PET/MR imaging system (GE Healthcare) comprised of a time-of-flight (TOF) PET system utilizing silicon photomultipliers (SiPMs) and 3-tesla (3T) MRI was recently installed at our institution. The small-ring (60 cm diameter) TOF PET subsystem of this PET/MRI...
The accurate algorithm, which is used in the calculation of tower grounding resistance of power line in vertical layered soil, is difficult for normal engineering personnel to handle. Based on Green function, the resistance of typical tower grounding device is calculated. Therefore, the fitting function, which represents the relationship between resistivity of vertical layered soil and resistance...
The insulation level of 10kV power distribution line is low, which is vulnerable to the direct lightning and induction lightning. Lightning is one of the important reasons for the accident of distribution network. In order to reduce lightning accidents and improve the power supply reliability of distribution network, it is important in theoretic and engineering to run the simulation and real-model...
Lightning induced overvoltage is the important reason for the insulation flashover of power distribution line. In order to reduce the lightning accident and to improve the power supply reliability of the distribution network, it is of outstanding significance for engineering purposes to study the lightning current and induced overvoltage on distribution lines. So a 280 meter-long 10 kV power distribution...
For hyperspectral data classification, feature reduction techniques have become an apparent need to extract information from original data. In this paper, we introduce Locality Sensitive Discriminant Analysis (LSDA) to perform feature reduction for classification of hyperspectral imagery. By preserving both the discriminant and local geometrical structure in the data, the proposed method can obtain...
In low-voltage dc microgrid, many power electronic devices may suffer from overvoltage or overcurrent when there's a short-circuit fault in lines. To improve the power supply reliability in dc microgrid, suitable protection strategy for suppressing short-circuit current in dc lines is indispensable. In this paper, a loop-type dc Microgrid with high power supply reliability is adopted. Furthermore,...
Sale of ticket, the very first stage in rail service for passengers, is critical to the management of the whole system. Based on information of the ticket office at Shijiazhuang South, a queuing simulation system is built. Three indicators, namely usage level, number of customers and queuing time, are obtained by running simulations based on different parameters during peak and off-peak periods. Therefore,...
The entire powertrain system has been analyzed and the corresponding software components model library is designed on the platform of Simulink according to the system requirement. The powertrain control system has been set up and verified through the rapid control prototyping(RCP) simulation using the proposed library. The design and simulation of the powertrain control system show the configurability...
An integrated powertrain control model is built in Simulink/Stateflow in this paper. This control model is transformed in Targetlink to conduct the model-in-the-loop(MIL) simulation and software-in-the-loop(SIL) simulation. By combining the C code generated after SIL with the underlying code of the single chip, the control procedure is finished. By downloading the code into the hardware, the hardware...
The method of moments solution for a printed dipole antenna on a grounded general anisotropic substrate is formulated with the eigenvector dyadic Green's functions. The general feasibility of this method is validated by checking the numerical results of a printed dipole on isotropic, biaxial and ferrite substrates with the previous work in which different dyadic Green's functions are used. Furthermore,...
Because InGaAs has a small bandgap, InGaAs MOSFETs are vulnerable to large band-to-band tunneling currents, arising near the drain end of the channel. This sets a minimum off-state leakage current, and can render the device unsuitable for VLSI applications at sub-10-nm gate lengths. Here we report two techniques to reduce band-to-band tunneling leakage in InGaAs MOSFETs. By using either a recessed...
A multi-terminal VSC-HVDC system based on the MMC technology (MMC-MTDC) has great application prospects for city center in-feed, grid connection and offshore wind energy integration because of its flexible power transmission. However, how to re-commission a converter station (after maintenance) online to the operating system without expensive dc Circuit Breakers(CBs) presents a huge challenge. By...
In order to develop the microwave and millimeter-wave vacuum electronic radiation source devices with field emission cold cathodes, an electron-optical system based on carbon nanotube cold cathode is investigated in this paper. A magnetron injection electron gun is designed for a 220GHz TE03 mode gyrotron. And the preliminary experiment results of the carbon nanotube cathode show the maximum beam...
Cloud gaming has become increasingly more popular in the academia and the industry, evident by the large numbers of related research papers and startup companies. Some public cloud gaming services have attracted hundreds of thousands subscribers, demonstrating the initial success of cloud gaming services. Pushing the cloud gaming services forward, however, faces various challenges, which open up many...
Anomalous patterns are observations that lie far away from the fitting function deduced from the bulk of the given observations. This work addresses the research issue to effectively identify anomalous patterns in both contexts of resistant learning, where there is no assumption about the fitting function form, and of changing environments. The resistant learning means that the learning procedure...
Protein-protein interactions (PPIs) play crucial roles in the execution of various cellular processes. Almost every cellular process relies on transient or permanent physical bindings of proteins. Unfortunately, the experimental methods for identifying PPIs are both time-consuming and expensive. Therefore, it is important to develop computational approaches for predicting PPIs. In this study, a novel...
Automatic detection of alveolar bone-loss areas in dental periapical radiographs is a very challenging task because of the common uneven illumination problem of dental radiographs and complex topology of bone-loss areas. In this paper, we propose an effective automatic detection method ABL-IfBm, which uses weighted average of both the intensity and the texture measured by the H-value of fractal Brownian...
This paper describes the concept of workflow merge and methods for merging business processes. We append effect annotations to activities of business process, use RPSTs divided the process graph to fragments then accumulate these effects according to these SESE fragments, detect exact clone and approximate clone between the two process models, finally design a merging algorithm to consolidate two...
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