- Power System Reliability and Maintenance
- Infrastructure Resilience and Vulnerability Analysis
- Optimal Power Flow Distribution
- Speech Recognition and Synthesis
- Geotechnical Engineering and Underground Structures
- Power System Optimization and Stability
- Smart Grid and Power Systems
- Structural Response to Dynamic Loads
- Speech and Audio Processing
- Voice and Speech Disorders
- Structural Engineering and Vibration Analysis
- Structural Behavior of Reinforced Concrete
- Hybrid Renewable Energy Systems
- Integrated Energy Systems Optimization
- Viral Infectious Diseases and Gene Expression in Insects
- Protein purification and stability
- Innovative concrete reinforcement materials
- Software Testing and Debugging Techniques
- Tunneling and Rock Mechanics
- Optimal Experimental Design Methods
- Manufacturing Process and Optimization
- Geotechnical Engineering and Analysis
- Advanced Statistical Process Monitoring
- Elasticity and Material Modeling
- Dam Engineering and Safety
China Institute of Water Resources and Hydropower Research
2019-2024
Tianjin University
2015-2023
Tianjin Research Institute of Electric Science (China)
2023
Tianjin University of Technology
2020
Arizona State University
2017
Southwest University of Science and Technology
2017
In this paper, a planning-oriented resilience assessment framework is proposed that can help to design more resilient power transmission system against extreme weather-induced events, such as typhoon disasters. It consists of three major models, i) wind field-based probabilistic model determine the level uncertainty in intensity and path typhoon; ii) spatiotemporal fragility corridor quantify impacts speed on failure probability corridor, iii) planning allows us develop quantitative indices...
The Integrated Community Energy System (ICES) has developed rapidly, but the reliability assessment models of ICES are somehow out date. A new model for is proposed incorporating electricity, gas and heat, considering dynamic process thermal loads. First, static consisting three subsystems constructed based on energy hub model. Then inertial features loads incorporated in ICES. Thereafter, a quasi-sequential simulation decomposed optimisation method to assess Case studies conducted an with...
In this work, the immobilization of simulated radionuclide 90Sr by fly ash-slag-metakaolin–based geopolymer was investigated. It found that thermal stability (high-temperature and freeze-thaw resistance) waste forms were better than cement. The can acquire a compressive strength up to 10 MPa after 2 h calcination at 1000°C. Furthermore, leaching tests revealed had lower cumulative fraction rates These results gave encouragement for idea geopolymers could be used as low cost high efficiency...
The debonding failure of a polymer-based coating seriously affects the safe operation buildings under action high-velocity flood discharge flow. In order to achieve healthy and sustainable hydropower stations, between polyurea concrete was described by cohesive zone model, model proposed verified. results obtained from were basically consistent with test results. Accordingly, influence performance different anchoring types, material mechanics polyurea-based bonding on behavior analyzed,...
Disruptive events, such as natural disasters, terrorist attacks and improper operations, may result in multiple transmission line outage of power system. In order to evaluate their impacts on system, the concept resilience is introduced. On basis existing assessment methods, this paper develops a series quantified indices, consisting both system-level indices component-level well relevant approach. With overall system can be estimated. Based weak points identified. Accordingly, corresponding...
There are various kinds of disasters may incur power system blackouts and their impacts on difficult to predict in advance. On the basis existing resilience assessment indices, this paper proposes a component level indices transmission system. The is defined as contribution each line under failure scenarios. This newly developed can be used quantify enhancement from perspective certain component. Therefore, failed ranked based then optimal recovery strategies determined accordingly. An...
This paper presents a reliability assessment approach for Integrated Community Energy System (ICES). The complex energy couplings and interactions in the ICES is simulated by hub model, which connects electricity, gas heat systems. quasi-sequential Monte Carlo simulation technique utilized to select system state of ICES. A hierarchical decoupling optimization framework then implemented calculate loss after outage occurs. Case studies show that proposed method can accurately evaluate
Purpose Multilayer composite liner structures are the primary structural form of hydraulic tunnels. However, bearing mechanism multilayer liners has not been investigated thoroughly. Many existing design schemes do properly achieve a balance between safety, anti-seepage capacity, and cost effectiveness. Thus, new structure type its theoretical model was proposed. Design/methodology/approach A novel tunnel with polyurea spray coating interlayer proposed in this study. based on state-space...
Purpose Structural design theory and method for the polyurea coating system have rarely been developed. The normally used experience-based may lead to unsafe, unreasonable uneconomic results. purpose of this paper is investigate deformation failure behaviour so as propose a rational method. Design/methodology/approach In study, fundamental theories concerning nonlinear analysis were discussed. Nonlinear Finite Element Method (FEM) models built mechanical behaviour, peeling mode under various...
In view of the problem that existing transmission system reliability assessment indices cannot determine weak links system, component importance index is put forward based on idea using measures. Furthermore, this paper proposes a method for quickly calculating each line combined with impact-increment state enumeration method. The results can be used to rank lines and most effective measures improve reliability. Case studies are performed IEEE RTS-79 test demonstrate accuracy computational...
Binary translation is the emulation of one instruction set by another through code. Sequences instructions are translated from source to target set. The semantic equivalence conversion core a binary system. In order simulate behavior program on platform more accurately, change special state register must be exactly simulated. A flag simulation strategy based fusion trees presented in this paper. First, it determined whether meet some conditions relations among trees. Then these will fused if...
Product characterization is an important phase in developing new semiconductors. The goal to determine if the product will function when produced under extreme edge of fabrication variation; not, might be considered have insufficient design margin, necessitating circuit redesign. Achieving this requires producing a so-called corner lot that consists skew chips; i.e., chips whose key performance parameters are expected around certain targeted values. These extensively tested whether their...
Overhead transmission line is an important part of power system, it easy to be affected by natural disasters.In order enhance the ability system resist those disasters, resilience assessment indices should established provide decision support for grid dispatchers and operators in advance, which has become one economical efficient technical routes improve resistance ability.In this paper, windstorm taken as example, wind speed related fragility model overhead impact-increment state...
It is an important issue that how to reduce the simulation cost of flags in flag register on source instruction set architecture. To solve this problem, a optimization method static binary translation presented. The can simplify process and effectively amount translated target code. Firstly, program divided based blocks functions. Then, redundant processes optimized each section. At last, algorithm proposed described, simple mode matching represented. Experimental results show codes reduced...
This paper proposes a branch-independence-based reliability assessment approach for transmission systems. The consists of branch decoupling and state-space partition techniques. By integrating an impact-increment-based index calculation model the proposed technique, proportion sampled contingency states no longer need to be analyzed using time-consuming optimal power flow (OPF) algorithm. In this way, technique speeds up indices. Since first-order have high probability being sampled, we...
Currently, there is a growing demand for intelligent maintenance of large-scale infrastructure, prompting shift from manual to semi-automatic solutions in the control schemes inspection robots. Mobile robots play crucial role tasks such as flip-over inspection, fall prevention warning, defect identification, all which necessitate edge detection and alignment processes. Laser alignment, with its high precision low computational complexity, offers significant advantages over observation visual...
Vocoder-based speech synthesis has become a promising technique to accommodate the demands of high-quality analysis, manipulation, and synthesis. However, most existing works focus on how synthesize normal human voice with high signal-to-noise ratio, neglecting individuals' pathological disorder in interaction. In this work, we propose non-linear repair vocoder for vowels sentences, which takes as input generates repaired speech. Our approach is specifically designed enhance quality...