A5100434850- Metallic Glasses and Amorphous Alloys
- Hydraulic Fracturing and Reservoir Analysis
- Advanced Materials and Mechanics
- Bauxite Residue and Utilization
- Material Dynamics and Properties
- Laser Material Processing Techniques
- Recycling and utilization of industrial and municipal waste in materials production
- Enhanced Oil Recovery Techniques
- Antenna Design and Analysis
- Reservoir Engineering and Simulation Methods
- Ultra-Wideband Communications Technology
- Concrete and Cement Materials Research
- Laser Design and Applications
- Additive Manufacturing Materials and Processes
- Lubricants and Their Additives
- Oil and Gas Production Techniques
- Parallel Computing and Optimization Techniques
- Material Science and Thermodynamics
- Advanced Materials Characterization Techniques
- Advanced Sensor and Control Systems
- Spectroscopy and Laser Applications
- Glass properties and applications
- Higher Education Practises and Engagement
- Dam Engineering and Safety
- Extraction and Separation Processes
Research Institute of Petroleum Exploration and Development
2024
State Key Laboratory on Integrated Optoelectronics
2022-2023
Jilin University
2008-2023
Shanghai University
2004-2023
Universidad del Noreste
2022
Xiamen University of Technology
2022
Xiangtan University
2019
Harbin Engineering University
2017
Dalian University of Technology
2017
Air Force Engineering University
2011
Abstract Glasses have long been considered as frozen liquids because of the similarity between their static amorphous structures. While modern theories about glass transition suggest that may result from supercooling a heterogeneous liquid contains fast and slow regions, it remains unclear whether such physical picture applies to metallic glasses, which are densely packed solid was once believed be vitrified homogeneous liquid. However, in recent work published Nature Materials , Chang et al...
The present work investigates primarily the morphology evolution of body-centered-cubic (BCC)/B2 phases in AlxNiCoFeCr high-entropy alloys (HEAs) with increasing Al content, which has been neglected so far. There exist two types microscopic morphologies BCC and B2 this HEA series: one is weave-like induced by spinodal decomposition, other microstructure a spherical disordered precipitation on ordered matrix that appears HEAs much higher content. shape coherent precipitates found to be...
A liquid crystalline elastomer (LCE) as a kind of stimuli-responsive materials, which can be fabricated to present the three-dimensional (3D) change in shape, shows wide range applications. Herein, we propose simple and robust way prepare 3D shape-change actuator based on gradient cross-linking vertically aligned monodomain crystals (LCs). First, gold nanoparticles grafted by polymers (LCPs) are used induce homeotropic orientation LC monomer cross-linkers. Then, photopolymerization under UV...
The occurrence of impact needs to be predicted for various cases as it mostly delivers negative target object and environment. In marine structure, this phenomenon has distributed numerous damages involved objects, such can found in tragedy the Estonia 1994. This disaster led a reassessment safety passenger ships many country. During both structural material aspects contributes responses form energy, force, damage. present work, consideration would considered preparation, analysis,...
Based on the avalanche effect of transistor, a kind ultra-wideband nanosecond pulse circuit has been designed, whose frequency, width and amplitude are tunable. In this paper, principle, structure selection components' parameters in analyzed detail. The generates periodic negative pulse, full is 890 ps -11.2 V simulation mode. By setting up for experiment changing properly, with 2.131 ns -9.23 achieved. With features such as simple structure, stable reliable performance low cost, generator...
Due to the randomness and complexity of discontinuity distribution, it is always complicated analyse three-dimensional stability problem discontinuity-controlled rock slope in field engineering geology. Specifically, when restricted by poor sampling conditions, data obtained are very limited. To solve this problem, we propose a stochastic kinematic method estimate failure angle based on limited data. Taking high-steep right bank proposed bridge as an example, multiple algorithms (Monte Carlo...
Dynamic load balancing is an important factor affecting the parallel computing performance in a multiprocessor system. On basis of introduction to basic principle dynamic algorithm, this paper first finds through analysis that reason for overhead occurring migration, and then qualitatively gives granularity formula moving each time, proposes new defines four possible states node, discusses implementation rule algorithm. Finally, comparison made between operating results algorithm those other...
On the basis of discussion on usage limitations Rotating Disc Electrode Atomic Emission Spectrometry (RDE-AES) in aero-engine wear monitoring, oil filter debris analysis methods were summarized. And recently developed FilterSCAN device was introduced. The device, which consists a core washing system, particle counting collecting system and operating control can complete washing, amount size distribution analysis, automatically. provides technology for large metal monitoring aero-engines.
Fracture-vuggy carbonate reservoir has a unique structure. It is difficult to form effective seepage channels when natural fractures are not developed, resulting in low productivity of oil Wells. Therefore, artificial hydraulic fracturing needed for reconstruction. The well control area divided into four zones, namely, fractured fracture zone, reformed fissure-cave zone and unreformed zone. According the different based on Darcy's law mechanics theory, considering influence starting pressure...
An ultra-short pulse generator is presented, whose frequency, width and amplitude are tunable. The design method based on Marx circuit, which made up of avalanche transistors mainly. paper describes the transistor's characteristic, basic generator's working principle selection components in detail. Finally, simulation experimental results shown they accordance with each other perfectly. With features such as simple structure, stable reliable performance low cost, can be applied...
Profile Controlling by Horizontal Well Completion Strings with Inner-located Nozzle Liangchuan Li; Li China University of Petroleum (Beijing) Search for other works this author on: This Site Google Scholar Huiqing Liu; Liu Hongling Zhang; Zhang Qing Wang Paper presented at the International Oil and Gas Conference Exhibition in China, Beijing, June 2010. Number: SPE-131437-MS https://doi.org/10.2118/131437-MS Published: 08 2010 Cite View Citation Add to Manager Share Icon Twitter LinkedIn Get...