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We present an energy-efficient on-chip reconfigurable computing architecture, the so-called OLUT, which is an optical core implementation of a lookup table. It offers significant improvement with respect to optical directed logic architectures, through allowing the use of wavelength division multiplexing (WDM) for computation parallelism. We performed a design space exploration that elucidates the...
Aiming at the problem of five-level modulation strategy, which is numerous and difficult to be unified, a general modulation strategy based on phase-disposition is proposed. The proposed method is unified with the different modulation strategy by adding zero-sequence voltage on the modulated wave or changing the phase of staking carrier. To verify its correctness, using the proposed method to achieve...
Cloud computing is attracting an increased number of researches in delivering modeling and simulation abilities as a service. Among which, simulation execution as a service (EaaS) is a hot spot. It aims at releasing users from complex running configurations and meanwhile guaranteeing the QoS requirements. Under the motivation, focusing on EaaS for parallel and distributed simulation (PADS) application,...
Distributed generation (DG) is connected through three-phase inverter to the microgrid. The virtual power based droop control can guarantee the pure decoupling between active and reactive power irrespective of low-voltage or high-voltage microgrid application if the line-impedance information is known in advance. However, unbalances are commonly existent in practice so that this conventional control...
The lifetime prediction of LED lighting system is important to guide the designers to fulfill the design specifications and to benchmark the cost-competitiveness of different lighting technologies. Currently, the lifetime of LED system is usually predicted from the source part and the driver part separately, and then the thermal design is also optimized independently. In practice, the LED source and...
We propose a data-driven method for recovering missing parts of 3D shapes. Our method is based on a new deep learning architecture consisting of two sub-networks: a global structure inference network and a local geometry refinement network. The global structure inference network incorporates a long short-term memorized context fusion module (LSTM-CF) that infers the global structure of the shape based...
Based on the characteristics of Quality Function Deployment (QFD) and theory of inventive problem solving (TRIZ), an innovative design model based on QFD and TRIZ is proposed. Firstly, customer requirements are analyzed by the House of Quality. The problems that need to be solved in the design are identified. Then, the innovative design scheme of the product is obtained by applying the corresponding...
In this paper, control system and simulation of an arc-linear permanent-magnet synchronous machine with normal armature windings and compensation windings are researched. Considering the special structure of the machine, the mathematical model of the machine is investigated and established. The control scheme and the control system for the machine are also researched to reduce the torque ripple for...
This paper presents a third order coupled bandpass filter using integrated passive device technology and SIR architecture. The filter is based on the semiconductor wafer IPD process, using thin film technique and photolithography technology, combined with the advantages of high harmonic suppression of the SIR. Compared with passive device process such as LTCC (low temperature co-fired ceramic), this...
Eight typical flip chip packages were adopted in this study, two domestic, six imported, and five of the six imported were models with experience of aerospace application. The construction and material of these flip chip packages were analyzed, and similarities and differences between the domestic and the imported packages were compared. Construction analysis criteria of flip chip package for aerospace...
This paper presents a third order coupled bandpass filter using integrated passive device technology and SIR architecture. The filter is based on the semiconductor wafer IPD process, using thin film technique and photolithography technology, possessing the advantages of high harmonic suppression. Compared with passive device process such as LTCC (low temperature co-fired ceramic), this filter has...
In this paper, a compact third-order bandpass filter with Chebyshev characteristic is designed by using integrated passive device (IPD) technology. The filter is capacitively coupled and consists of three parallel resonators. The simulation results show that the center of the filter Frequency of 1700MHz, bandwidth of 500MHz, the volume is only 1.0mm*0.5mm*0.3mm.
At present, most medical sheet (such as medical report, laboratory sheet, medical cases, etc.) in the form of nonelectronic is easy to lose, and difficult to be integrated with other electronic health data. In order to fully utilize these valuable data, in this paper we propose a deep learning approach, named k-CNN, which can intelligently recognize the contents of medical sheet. The main advantages...
A design of mine wind velocity sensor is reported, which is based on differential pressure principle and adopts differential sensitive architecture composed of a bellows, an equal-strength beam and two fiber Bragg gratings(FBG). Furthermore, an algorithm is introduced for temperature compensation. Through these methods the cross sensitivity of temperature is effectively eliminated. The relation between...
Maintenance work-scope is the most important guidance when gas turbines visiting workshop. Maintenance cost and after-maintenance performance of gas turbine are affected by the work-scope directly. Thus, the evaluation method is essential in optimization of gas turbine maintenance work-scope. As after-maintenance performance of gas turbine would be influenced by multi-faced factors, it is not easy...
For supporting the applications of GF-3 and GEOSAR satellite projects, which have been approved by Chinese government, a multi surface parameter inversion algorithm using alternative Radarsat-2 polarimetric images is tested and improved in this study. Result shows that, though the algorithm can retrieve vegetation height and water content with relatively good accuracies, soil moisture and surface...
SAR knowledge base system is a comprehensive application platform for typical objects interpretation, which includes the database of microwave scattering models, backscattering measurement data and SAR image. The paper introduces the design of the whole system and gives a detail description for each database in the system. The comprehensive knowledge rules for SAR application is developed based on...
In this paper a combined controller composed of the H∞ virtual controller and the sliding mode controller is proposed to improve the rigid spacecraft robustness. Considering the strong nonlinearity of the spacecraft dynamics, tensor product (TP) transformation is applied on the linear parameter varying (LPV) model which is obtained from the attitude kinematics system. The TP-based H∞ controller can...
For distributed generation (DG) network, it is important to estimate the real-time states. The information-centric networking (ICN) is established to take charge of the communication of DG network. However, the assumption of ideal communication between sensors and the estimation center cannot be guaranteed due to the communication constraints of ICN with the increasing DG network. A conventional algorithm,...
Network virtualization is a dynamic context leading to imbalance for substrate network (SN) resources which can affect the virtual network (VN) request further. In this paper, we propose the GRC-mopso-VNE algorithm to solve the VNE problem taking link resources into consideration in the stage of node mapping. A novel metric is developed, i.e., global resource capacity (GRC), to evaluate the mapping...
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