A5101627836- Fluid Dynamics Simulations and Interactions
- Electromagnetic Compatibility and Noise Suppression
- 3D IC and TSV technologies
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Ship Hydrodynamics and Maneuverability
- Advanced Sensor and Control Systems
- Electronic Packaging and Soldering Technologies
- Underwater Acoustics Research
- Oceanographic and Atmospheric Processes
- Ocean Waves and Remote Sensing
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics and Turbulent Flows
- Spacecraft and Cryogenic Technologies
- VLSI and FPGA Design Techniques
- Low-power high-performance VLSI design
- Acoustic Wave Resonator Technologies
- Optical properties and cooling technologies in crystalline materials
- Earthquake and Tsunami Effects
- Turbomachinery Performance and Optimization
- Electromagnetic Launch and Propulsion Technology
- Wind Energy Research and Development
- Ultrasound Imaging and Elastography
- Wireless Signal Modulation Classification
- Rheology and Fluid Dynamics Studies
Fujian Institute of Research on the Structure of Matter
2025
Chinese Academy of Sciences
2025
Fuzhou University
2025
Northwestern Polytechnical University
2021-2023
National University of Singapore
2022
Qingdao University
2020
University of Electronic Science and Technology of China
2018
Dalian University of Technology
2018
State Grid Corporation of China (China)
2017
Sun Yat-sen University
2015-2016
A new hydrodynamic artificial intelligence detection method is proposed to realize the accurate of internal solitary waves (ISWs) by underwater vehicle. Two deep convolution neural network structures are established predict relative position between vehicle and ISW flow field around By combining observation data computational fluid dynamics method, numerical simulation motion in a real environment achieved. The training process for implemented building dataset from above results. It shown...
Our work provides a more environmentally friendly method for high-quality PSCs manufacturing, with great potential in large-scale crystal growth and application.
The prerequisite for accurate prediction and effective control of flow phenomena fundamentally lies in the understanding dynamics, experimental studies provide essential data to support this process. Particle image velocimetry (PIV), as one important methods field measurement, plays a critical role investigations such past circular cylinder. PIV is non-contact laser-optical measurement technique; however, it often faces challenges obtaining complete when optical path obstructed. Particularly...
A surface acoustic wave (SAW) temperature sensor with high accuracy was developed and wirelessly characterized in this work. The sensing chip reflective delay line pattern simulated using typical coupling of modes (COM) model prepared by the standard photolithographic technique. Sharp reflection peaks signal-to-noise (SNR) were observed from operating at 433 MHz. Referring to frequency-stepped continuous (FSCW)-based transceiver, planar antennas, SAW chip, wireless passive system built....
In this paper, a fast power/ground (P/G) pin assignment method for large-scale high-pin-count ball grid array (BGA) packages using static template is proposed. The generated genetic algorithm. An algorithm developed to remove the boundary problem of so that its copies can be directly merged into BGA package. selection size demonstrated. A visual demonstration presented better evaluate quality signal and P/G pins by human eyes. Using method, 50 × package with blocks core, I/Os differential...
In this paper, a power/ground (P/G) pin assignment method using simulated annealing (SA) for large-scale high-pin-count ball-grid-array (BGA) packages is proposed. Two objective functions describing the power integrity (PI) and signal (SI) of pinout are introduced. The SA algorithm customized to meet needs problem. Accelerating strategies introduced, some special considerations optimization discussed. can generate P/G with any power-ground-signal ratios (P <sub...
A novel fiber optic FP interferometer sensor (FFPI) with thermal drift of ~0.1pm/°C is demonstrated for measurement pressure/strain under high temperature up to 400°C, which the lowest sensitivity FFPI reported.
Campus card system in generated a lot of data during it's operation, and the itself cannot analyze these data. How it can be learned from massive, outdated for student management to assist decision-making becomes very realistic subject. This paper takes transaction campus as research object, uses comprehensive application warehouse, online analysis processing, mining so on excavate useful information hidden transaction. first introduces technology, then analyzes consumption behavior canteen,...
A high molecular polymer solution with viscoelasticity has the effect of reducing frictional drag, which is quite practical for energy saving. Effective simulations viscoelastic flows in a pipeline Reynolds number realized by incorporating constitutive equation into k−ε−v′2¯−f turbulence model. The Finitely Extensive Nonlinear Elastic Peterlin (FENE-P) model employed characterizing viscoelasticity. drag reduction fully developed pipe flow fixed mass rate studied. Different from increasing...
Aiming at the process of underwater vehicle crossing water-air interface based on computational fluid dynamics(CFD) method, integrating volume fluid(VOF) and dynamic body interaction(DFBI) models, a numerical simulation method for trans-media in wave environment was studied. The motion under action complex established. water-exit has been realized. accuracy verification wave-making processes completed. hydrodynamic kinematic characteristics during have obtained. influences phase velocity...
Emerging applications such as forest fire monitoring have increasing demands on WSN to transmit data in real-time. In order ensure real-time transmission, it requires that the operating system of a node should schedule tasks TinyOS is one most popular operation systems support multifarious applications. However, its FIFO scheduling strategy does not guarantee requirements for hard A Preemptive Two-Level Priority (PTLP) Real-time Scheduling Strategy proposed this paper. Two tier priorities,...
Imaging technologies are important in the era of drones/mobile vision systems. A CIS provides high-fidelity images with low latency, but it is vulnerable to low/complex light conditions and lacks depth information; LiDAR information bulky over 50W power [1]. An Ultrasound Sensor (UIS), on other hand, a promising choice for sensing under all-light (day/night/complex); also consumes orders magnitude less than smaller form-factor. However, conventional UIS systems often rely off-chip image...
In order to solve the problem that high-order signal features need be extracted manually and recognition accuracy is not high in process of modulation recognition, this paper applies depth confidence network studies method based on Deep Belief Networks (DBN). paper, Restricted Boltzmann Machine (RBM) used build model DBN, then simulation module data set needed by DBN introduced. The trained generating data, realized. Simulation results show higher than other machine learning algorithm.
Abstract Environmental effects on ship hydrodynamics during inland waterway transport are investigated using both CFD (Computational Fluid Dynamics) and towing tank experiments. Three important scenes, the confinement effect of waterway, head-on encounter ship-bridge pier interactions studied. The testing conditions cover a wide range, including various channel dimensions, water depths, draughts speeds. resistance, wave pattern, Kelvin angle elevations as functions these parameters.
Abstract The sensing characteristics of irradiated fiber Bragg gratings (FBGs) and Fabry-Perot interferometers (FPIs) were investigated under a 2 MGy dose gamma radiation. study found that the pressure sensitivity FP sensors after irradiation was stable, while temperature FBG unstable, both wavelengths displayed shift. These findings offer possibility for application in radiation environments, require further research to be suitable nuclear environments.
To solve the problems of nonlinear and input constraints in iterative learning control system, using real-coded shuffled frog leaping algorithm to optimization problem1 control, .A algorithm(SFLA) based optimal is proposed.The combines advantages memetic particle swarm simplify parameter selection, reduce search space improve convergence rate.The proposed approach benefits from design a low-pass FIR filter.This filer successfully removes unwanted high frequency components signal, which are...
In this paper, a package P/G pins assignment optimization method based on simulated annealing (SA) is proposed. Two objective functions describing power integrity (PI) and signal (SI) are introduced. The basic flow of SA presented, with the redefinition neighborhood solution in SA, which ensures feasibility iteration. A 49×49 pinout example generated by proposed compression product from Xilinx provided. By using method, large-scale BGA blocks core, inputs/outputs differential pairs can be...