A5100634086- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- ZnO doping and properties
- Network Traffic and Congestion Control
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Mobile Agent-Based Network Management
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Data Management and Algorithms
- Advanced Measurement and Detection Methods
- Advanced Database Systems and Queries
- Advanced MIMO Systems Optimization
- Earthquake Detection and Analysis
- Network Security and Intrusion Detection
- Traffic Prediction and Management Techniques
- Service-Oriented Architecture and Web Services
- Advanced Manufacturing and Logistics Optimization
- Image and Video Quality Assessment
- Smart Grid and Power Systems
- Smart Grid Security and Resilience
- Smart Parking Systems Research
- Advanced Optical Network Technologies
- Semiconductor materials and devices
State Key Laboratory of Networking and Switching Technology
2010-2024
Beijing University of Posts and Telecommunications
2010-2024
Qilu University of Technology
2023-2024
Shandong Academy of Sciences
2024
National Institute of Hospital Administration
2024
Beijing University of Chemical Technology
2024
Guangdong Polytechnic of Science and Technology
2023
Wuhan University
2007-2021
Zhejiang University
2018-2020
Worcester Polytechnic Institute
2019
Abstract Large single crystals serve as an ideal platform for investigating intrinsic material properties and optoelectronic applications. Here we develop a method, namely, room-temperature liquid diffused separation induced crystallization that uses silicone oil to separate the solvent from perovskite precursors, grow high-quality crystals. The growth kinetics of using this method is elucidated, their structural are carefully characterized. resultant crystals, taking CH 3 NH PbBr example,...
Magnetic skyrmions as swirling spin textures with a nontrivial topology have potential applications magnetic memory and storage devices. Since the initial discovery of in non-centrosymmetric B20 materials, recent effort has focused on exploring room-temperature heavy metal ferromagnetic heterostructures, material platform compatible existing spintronic manufacturing technology. Here, we report surprising observation that skyrmion phase can be stabilized an entirely different class systems...
As power communication network is more and important in smart grid, to decrease the failure risk of system caused by interruption service, this paper propose a novel routing optimization method based on predication for services. Firstly, we analyze probability link node which induced external factors, like winds snows, equipment failures, etc. Then importance services, links nodes, calculate node. Further, three service indicators corresponding improved Dijkstra algorithms optimize routing,...
Abstract P ‐type semiconductor cuprous oxide (Cu 2 O) offers promising optoelectronic applications such as solar cells and photodetectors owing to its considerable absorption coefficients high carrier mobility. However, polycrystalline Cu O films with low mobility resulting from excessive grain boundaries structure disorder fail meet the demands for these applications. Here a stress‐assisted thermal oxidation method fabricate p <110>‐textured quasi‐single crystalline (c‐Cu wafers...
Traffic signal control systems often operate with a fixed time strategy when practical conditions prohibit adaptive traffic built upon real‐time data. One of the most important challenges to have good performance for is optimally identify breakpoints that divide one day into different partitions, which time‐of‐day (TOD) optimisation problem. Various solutions this problem been proposed based on classic clustering methods. However, these methods require empirical adjustment since they are not...
Software-defined networking (SDN) develops a logically centralized control plane from the data plane, which makes network management more intelligent. As becomes larger, with one controller can no longer manage efficiently. Therefore, multiple controllers are needed to network. However, survivability has been key challenge in multi-controller SDN, is sensitive failures. Once breaks down, switches will lose connections controller. This leads severe consequences. In this regard, we propose an...
A 3D city model is an intuitive tool that used to describe cities. Currently, level-of-detail (LOD) technology meet different visual demands for models by weighting the rendering efficiency against details of model. However, when change, “popping” phenomenon appears making transformations between LOD models. We optimized this popping improving data structure focuses on building and combined it with facet shift algorithm based minimal features. Unlike generating finite in advance, proposed...
It's a challenge to effectively assess Quality of Experience (QoE) for TCP video streaming with network performance parameters, resolve this problem, an objective hierarchical Evaluation Transmission Control Protocol (TCP) is proposed under playback scenarios. QoE assessment resolved into two sub-steps. In the first place, in consideration parameters affecting QoE, authors demonstrate three novel application-layer metrics. Further, impact status on investigated and propose high level...
System Protection Communication Network (SPCN) is a new type of high-speed, real-time, secure and reliable communication network proposed in China supporting services such as AC/DC control, pumped storage control etc. In order to reduce the impact SPCN failure on electric power system, this paper proposes risk modeling optimization approach. Firstly, we build model analyze dynamic link service from aspects probability its value. Then, construct problem aiming at minimizing balance degree...
Magnetic skyrmion is expected to function as an ideal information carrier for ultra-high density magnetic storage and logic functional device in the future due its superior properties, such topological protection, small size, low driving current motion. In order meet basic requirements writing reading devices, one needs be able accurately generate, manipulate, probe at room temperature. Given that history latest developments of research will reviewed comprehensively other articles, avoid...
In this paper, a Fabry-Perot interferometer filled with ultraviolet curing adhesive sensitization of high sensitivity fiber optic temperature sensor is proposed, by filling the F-P cavity adhesive, due to coefficient thermal expansion traditional achieved primary sensitization. Combined optical vernier effect mechanism for secondary interferometer, achieves compact polymer-core sensing probe structure and exhibits detection -17.55 nm/℃. This paper uses peak phase spectral tracking algorithm...
The China Seismo-Electromagnetic Satellite (CSES-01) is the first satellite of space-based observational platform for earthquake (EQ) monitoring system in China. It aims to monitor ionospheric disturbances related EQ activities by acquiring global electromagnetic fields, plasma, energy particles, etc., opening a new path innovative explorations prediction. This study analyzed 47 shallow strong cases (Ms ≥ 7 and depth ≤ 100 km) recorded CSES-01 from its launch February 2018 2023. results show...
Because the quality of experience (QoE) video is affected by content type video, this paper firstly establishes a classification mechanism. Based on types and objective parameters bitstream layer application layer, which have influences QoE, multi-factor QoE evaluation method for H.264/AVC encoded proposed. The experimental study shows that proposed performs well in assessing QoE.
Ensemble methods for classification problems construct a set of models, often called "learners", and then assign class labels to new data points by taking combination the predictions from these models. are popular used in wide range problem domains because their good performance. However, theoretical understanding optimality ensembles is, many instances, an open problem. In particular, improving performance ensemble requires subtle interplay between accuracy individual learners diversity...