As power density emerges as the main constraint for many-core systems, controlling consumption under Thermal Design Power (TDP) while maximizing performance becomes increasingly critical. To dynamically save power, Dynamic Voltage Frequency Scaling (DVFS) techniques have proved to be effective and are widely available commercially. In this paper, we present an On-line Distributed Reinforcement Learning (OD-RL) based DVFS control algorithm system improvement constraints. At finer grain, a...

New space-time turbo trellis codes (ST TCs) with 4-phase-shift keying (PSK) and 8-PSK for two, three, four transmit antennas in slow fast fading channels are proposed this paper. The component of the schemes constructed by choosing feedforward coefficients to maximize minimum squared Euclidean distance feedback minimize iterative decoding threshold. performance ST TCs various memory orders, antennas, interleaver structures is evaluated simulation. It shown that new achieve better than...

Cellular neural networks (CeNNs) have been widely adopted in image processing tasks. Recently, various hardware implementations of CeNNs emerged the literature, with Field Programmable Gate Array (FPGA) being one most popular choices due to its high flexibility and low time-to-market. However, typically involve extensive computations a recursive manner. As an example, simply process 1,920 × 1,080 pixels requires 4--8 Giga floating point multiplications (for 3 templates 50–100 iterations),...

Abstract The performance enhancement of conventional Si MOSFETs through device scaling is becoming increasingly difficult. application high mobility channel materials one the most promising solutions to overcome bottleneck. Ge and GeSn channels attract a lot interest as alternative materials, not only because carrier but also superior compatibility with typical CMOS technology. In this paper, recent progress has been investigated, providing feasible approaches improve devices for future technologies.

Polarity reversal and current intermittence are two attainable approaches to improve the electro-osmosis effect as well reduce energy consumption. The objective of this paper is evaluate impact polarity on and, furthermore, optimize electrifying process. Laboratory tests were performed with different intervals distributions power on-off time. Drainage monitored investigate reinforced effect. It demonstrated that proper design in can excessively enhance electro-osmotic Conversely, has an...

This article introduces a capacitor-voltage-balancing method based on optimal zero-sequence voltage injection in stacked multicell converter (SMC). The proposed is implemented using hybrid carrier pulsewidth modulation and capable of balancing regulating the voltages dc-link capacitors floating topology. dynamic model fluctuation coupling relationship voltage-balancing control between are analyzed. selection presented to address deviations with maximal regulation ability for control....

This paper focuses on adaptive resource scheduling for multiple services per user at the downlink of input output (MIMO) - orthogonal frequency division multiplexing (OFDM) system. In future wireless networks, one will simultaneously require homogeneous or heterogeneous services. Then, algorithm is responsible not only assigning blocks to different users but also distributing assigned among user. firstly formulates this integrated optimization problem based utility function in service As...

The wind-thermal hybrid power transmission will someday be the main form of transmitting wind in China but such mode is poor system stability. In this paper, a coordinated stability control strategy proposed to improve Firstly, mathematical model doubly fed farms and DC established. rapid controllability large-scale discussed based on DFIG wide-field optical fiber delay feature. Secondly, low frequency oscillation power-angle are analyzed under conventional plant with farms. A for AC/DC an...

To explore the potential of growing energy crops and then producing liquid fuels in marginal land China, this paper, status quo existing biomass resources utilization China have been first analyzed development process has reviewed. Secondly, using ethyl levulinate (EL) as our research subject, production capacity their to prepare explored. Finally, problems developing summarized, proposed policy recommendations for development, crop cultivation, fuel suitable Chinese conditions. The results...

To protect an 110 kVA critical load from voltage sags, a SMES-based sag compensator is developed. This system consists of 0.3 MJ NbTi magnet and 150 IGBT-based current source converter. The has solenoidal coil with inductance 1.85 H. Its helium-vapor cooled HTS leads are further by liquid nitrogen. A protection designed for quenches which would most likely happen during the period charging or discharging when occurs supply recovers sag. topology main circuit also presented analyzed.

In this paper we investigate the error performance of a multiple-input-multiple-output (MIMO) scheme combining transmit antenna selection (TAS) and space-time trellis codes (STTCs), which is referred to as TAS/STTC scheme. scheme, two antennas, maximize total received signal power, are selected full-rank baseline STTCs designed for antennas. An upper bound on pairwise probability (PEP) derived in quasistatic flat Rayleigh fading channels. It shown that, long STTC has full rank, diversity...

In this paper several closed-loop transmit diversity schemes with different levels of feedback about the channel coefficients to transmitter side are described and compared. These beamforming perfect state information (CSI) at transmitter, antenna selection/maximal-ratio combining (TAS/MRC) selection/space-time block code (TAS/STBC) partial CSI available transmitter. It is shown that TAS/MRC scheme provides a good trade-off between complexity performance.

World Health Organization estimated that over 1 billion people are living with some form of disability. Some 110 to 190 million live significant disabilities. The number guide dogs is far lower than the demand and only few visually impaired have access qualified guidance dogs. This paper present an autonomous mobile robot system aimed for service blind. includes a proof-of-concept appearance design as human machine interface consists stick main body enveloping platform. contains four modules...