A5016946533- Inertial Sensor and Navigation
- Power Systems and Renewable Energy
- High-Voltage Power Transmission Systems
- Geophysics and Gravity Measurements
- Pulsars and Gravitational Waves Research
- Risk and Safety Analysis
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Smart Grid and Power Systems
- Power Systems and Technologies
- Space Satellite Systems and Control
- Occupational Health and Safety Research
- Integrated Energy Systems Optimization
- Advanced Antenna and Metasurface Technologies
- Aerospace Engineering and Energy Systems
- Spacecraft Dynamics and Control
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Target Tracking and Data Fusion in Sensor Networks
- Astronomical Observations and Instrumentation
- Antenna Design and Optimization
- Structural Analysis and Optimization
- HVDC Systems and Fault Protection
- Astro and Planetary Science
- Railway Systems and Energy Efficiency
- Underwater Vehicles and Communication Systems
Beijing Jiaotong University
2016-2025
Nanjing Institute of Technology
2025
National University of Defense Technology
2015-2024
Ningbo University of Technology
2023
Shandong Normal University
2023
State Grid Corporation of China (China)
2021
Harbin Institute of Technology
2020
Jackson State University
2020
Southeast University
2020
Beijing University of Posts and Telecommunications
2012-2019
There is a need for rapid fabrication of tissue or organs with well-defined structures and functions in regenerative medicine. Two patterns cell/matrix constructs containing hepatic cells, gelatin fibrinogen were successfully created by automated prototyping techniques stabilized thrombin. No apparent cell damage was found during the process. Mechanical characterization demonstrated that 1:1 ratio gelatin/fibrin mixture had greatest elasticity modulus compressive strength. Microscopic...
This article provides a review on X-ray pulsar-based navigation (XNAV). The starts with the basic concept of XNAV, and briefly introduces past, present future projects concerning XNAV. paper focuses advances key techniques supporting including pulsar database, detection system, pulse time arrival estimation. Moreover, methods to improve estimation performance XNAV are reviewed. Finally, some remarks development provided.
To develop a biomass and power-to-gas (BPtG) process for renewable electricity storage sustainable synthetic natural gas (SNG) production, this work investigated five BPtG processes integrated with different electricity-driven gasification technologies based on simulation data. These were evaluated SNG composition yield, life-cycle energy exergy efficiencies, carbon emissions, the equivalent unit production cost. The results show that efficiencies of from those range between 53.1 58.6% 36.4...
利用遥感技术获取过火区信息对生态环境监测具有重要意义,其中高分辨率数据更适合提取小范围过火区。目前已有多种利用国外火点产品结合遥感影像提取过火区的研究。为了增强国产遥感数据火情监测能力,提高小范围过火区的提取效率和精度,基于过火前后2幅GF-1 WFV影像和多时相FY-3D MERSI火点产品开展过火区提取研究。2处研究区分别位于四川省凉山彝族自治州木里藏族自治县和西昌市。首先根据火点与过火区形成的关系,结合火点的时间、空间和光谱特征,筛选并扩充火点像元,确定过火区粗略范围;然后确定每种地表类型的分割阈值,分类过火像元和非过火像元;最后剔除周边小斑块,得到过火区提取结果。以人机交互方式获得的过火区参考真值作验证,并与神经网络分类法提取过火区的结果作对比。结果表明本文方法的过火区提取结果精度要明显高于神经网络分类法,Kappa系数达到0.82。该方法可以充分结合GF-1 WFV影像和FY-3D MERSI火点产品数据的优势,降低样本像元选择时间成本和不确定性,快速准确地提取小范围过火区。未来可考虑通过选择更高精度的火点产品,结合实地考察验证对该方法改进完善。
We present a novel control approach for trajectory tracking of an autonomous airship. First, the dynamics model and problem airship are formulated. Second, sliding mode law is designed to track time-varying reference trajectory. To achieve better performance, fuzzy adaptive proposed in which gains tuned according rules, adaptation used guarantee that can compensate uncertainties The stability closed-loop system proven via Lyapunov theorem. Finally, simulation results illustrate effectiveness...
The problem of positioning control for an autonomous airship in the presence model uncertainties and external disturbances is addressed paper. First, “ZY-1” introduced a dynamics presented. Second, backstepping sliding-mode approach proposed to develop controller. controller designed recursively by selecting some appropriate functions state variables as pseudocontrol inputs lower-dimension subsystems overall system based on Lyapunov function, which provides flexibility treat nonlinear terms...
Integrated energy supply via the high-capacity combined heat and power (CHP) system is an effective way to achieve "win-win cooperation" for regional carbon reduction. A case study of CHP with both civil industrial users conducted analysis mixed impact integrated on systems. The steam-water equations off-design calculation model are developed analyze heat-power coupling mechanism system. linear-calculating diagram obtained, which provides operational guidance simultaneous power, loads....
Estimating the pulse phase from recorded photons pulsars is one of key problems in X-ray pulsar-based navigation (XNAV). The current flight experiments on XNAV commonly estimate and Doppler frequency by maximum likelihood estimator (MLE). Because function nonconvex, MLE usually solved a computationally expensive grid search. computational complexity search proportional to upper lower bounds frequency, which are always set empirically. This article proposes an adaptive (AGS) method for...
An accurate period is important to recover the pulse profile from a recorded photon event series of an X-ray pulsar and estimate time arrival, which measurement navigation. Epoch folding classical estimation method in domain; however, its computational complexity grows as number trail periods increases. In order reduce complexity, this paper improves fast algorithm through segment correlation amplitude accumulation, based on post-order traversal binary tree. Compared with epoch folding,...
This paper addresses the positioning problem of an unmanned airship in presence parametric uncertainties and external disturbances. A sliding mode controller (SMC) based on fuzzy approximation is proposed that steers to remain fixed over a desired position. First, dynamic model derived formulated. Second, SMC designed actualize control under assumption accurately known. However, partially or totally unknown practice. In order solve this problem, logic system used approximate airship,...