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This paper presents a power-efficient single-loop continuous-time (CT) third-order sigma delta (ΔΣ) modulator that achieves a SNDR of 79.6 dB over a 10 MHz signal bandwidth. The modulator uses a feedforward-feedback (CIFF-FB) architecture which incorporates a single amplifier biquad (SAB) and a passive integrator to realize a third-order noise shaping. We also propose a continuous-time complementary...
Among power generation, transmission and use, distribution is an extremely important link. The distribution system includes a transformer and a variety of high and low voltage electrical equipment, the circuit breaker is a large amount of electrical appliances. The circuit breaker can be used to distribute electric energy, the asynchronous motor is not frequently started and the power line and motor...
This paper studies the average consensus problem for a discrete-time multi-agent system with first-order dynamics, we provide the sufficient and necessary stable condition that the step-size needs to satisfy for the multi-agent systems with an iterative method, and the cause of oscillation is investigated with use of matrix diagonal and eigenvalue analysis method. Some conclusions about the largest...
Biologists synthesize research articles into coherent models—ideally, causal models, which predict how systems will respond to interventions. But it is challenging to derive causal models from articles alone, without primary data. To enable causal discovery using only literature, we built software for annotating empirical results in free text and computing valid explanations, expressed as causal graphs...
In order to solve the problems of power transformer such as the fault can be reflected by different characteristic signal from different side and complexity of fault reason and phenomenon, a synthetic diagnosis method using multi-neural network and evidence theory for transformer fault diagnosis is presented. Various kinds of data are dealt by using neural network's excellent abilities of learning,...
We propose 8-dimensional 8192QAM to balance the nonlinear transmission performance and add/drop induced optical filtering. Simulations show that this format outperforms conventional PDM-16QAM, PDM-8QAM, and 4-dimensional 128QAM for 200-Gbit/s/channel optical networks with cascaded add/drop nodes.
We report the second harmonic generation frequency-resolved optical gating (SHG-FROG) measurements on a monolithically integrated multichannel mode-locked semiconductor laser based on arrayed waveguide grating. Clear phase correlation between synchronized mode-locked channels was demonstrated.
We experimentally demonstrate 4×100-Gb/s PM-QPSK transmission with a 50-GHz channel spacing and a span length greater than 250 km over a record reach of 2800 km. The transmission system uses a low-loss large-effective-area fiber and EDFA/DRA amplification.
4×10 Gb/s polarization- and mode group-multiplexed transmission without MIMO equalization for data center applications is experimentally demonstrated, for the first time, over a panda-type polarization-maintaining few mode fiber.
In this paper, we study an electricity load scheduling problem in a household with PV system according to the relationship of size between the Feed in Tariff(FIT) tariffs and time-of-use(TOU) pricing. Compared with previous works in which PV energy is either fully consumed by customers or fully exported to the main grid due to smaller or larger FIT than electricity price, we consider the PV energy...
Bayesian optimization has been demonstrated as an effective methodology for the global optimization. However, it suffers from a computational bottleneck that the inference time grows cubically with the number of observations. In this paper, a Bayesian optimization based on the data-parallel approach is proposed to alleviate this problem. Firstly, an improved geometry motivated clustering algorithm...
This paper presents an observer-based motion control scheme for a single mobile robot to track and monitor a dynamic pollutant plume propagation in m-dimensional space. The spatiotemporal dynamics of the pollutant plume is modeled by an advection-diffusion partial differential equation (PDE), and the plume front is described by a level set with a prespecified threshold value. In the suggested control...
In the paper, experimental results of a novel dualband DPD model based on CPWL functions [4] are provided. With the feature of CPWL functions that is a minimal formulation requiring minimal amount of memory to store the parameters, the CPWL-based DPD model can release the requirement for huge number of coefficients for concurrent dual-band DPD systems. Our test results show the CPWL-based DPD model...
This paper proposes a non-symmetrical permanent-magnet linear motor traction system (PMLMTS), in which the primary permanent-magnet linear motor (PMLM) is employed. Four movers are mounted with same phase angles. There are nine legs, including eight independent legs and one common leg. All legs have same normal voltage but different normal currents. The normal current of the common leg is four times...
The movable contact of conventional air circuit breaker (ACB) includes multiple parallel contacts. The arc motion process directly affects the breaker capacity of ACB. Therefore, it is important to study the arc motion process of multiple parallel contacts model. A three-dimensional (3D) magneto-hydro-dynamic (MHD) model of air arc plasma is built to investigate the arc motion process. The anode of...
Listen-Before-Talk category 4 (LBT Cat4) mechanism is considered as the most appropriate access method for Licensed-Assisted Access (LAA) framework, especially when LAA system coexists with WiFi system in unlicensed bands. Previous investigations of the LBT Cat4 based LAA-WiFi coexistence provide experimental results and simulation results, and theoretical analysis work is relatively rare. This work...
The postural instability was observed in patients following-stroke during standing, showing an altered center of mass acceleration (COMacc). This study aimed to investigate the effects of stroke on fluctuation and complexity of COMacc during quiet standing. Eleven stroke survivals and eleven gender- and age-matched healthy subjects participated in this experiment. The COMacc series in anteroposterior...
In the paper, experimental results of a novel dual-band DPD model based on CPWL functions [4] are provided. With the feature of CPWL functions that is a minimal formulation requiring minimal amount of memory to store the parameters, the CPWL-based DPD model can release the requirement for huge number of coefficients for concurrent dual-band DPD systems. Our test results show the CPWL-based DPD model...
More and more industrial production companies apply computer to process control, operation optimization and performance evaluation, which significantly increases the amount of data collected. Accurate measurement data can provide solid foundation for monitoring, optimization, scheduling, and decision analysis. However, measurement data is inevitably interfered by errors from multiple processes. This...
A multi-objective particle swarm algorithm based on the active learning (MOPSAL) approach is proposed that combines a Multi-Objective particle swarm optimization (MOPSO) with an Pareto Active Learning (PAL) approach. In MOPSAL, the candidate solution set is produced by a sampling method based on mutation operator and preselected by the PAL approach. Then, the best Pareto solution from the candidate...
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