A5045371553- Vibration Control and Rheological Fluids
- Advanced Surface Polishing Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Hydraulic and Pneumatic Systems
- Advanced machining processes and optimization
- High Entropy Alloys Studies
- Electrodeposition and Electroless Coatings
- Structural Health Monitoring Techniques
- Advanced Machining and Optimization Techniques
- Structural Engineering and Vibration Analysis
- Electronic Packaging and Soldering Technologies
- Vibration and Dynamic Analysis
- Synthesis and properties of polymers
- Photopolymerization techniques and applications
- High Temperature Alloys and Creep
- Metal and Thin Film Mechanics
- Advanced Materials Characterization Techniques
- Grouting, Rheology, and Soil Mechanics
- Anodic Oxide Films and Nanostructures
- Tunneling and Rock Mechanics
- Manufacturing Process and Optimization
- Laser and Thermal Forming Techniques
- Fluid Dynamics and Vibration Analysis
- Microstructure and mechanical properties
Jimei University
2011-2024
University of Chinese Academy of Sciences
2024
Chinese Academy of Sciences
2024
Academy of Mathematics and Systems Science
2024
Institute of Automation
2024
Thermo Fisher Scientific (United States)
2022-2023
Harbin University of Commerce
2023
Thermo Fisher Scientific (China)
2023
Daqing Oilfield General Hospital
2008-2022
Daqing Oilfield of CNPC
2022
Aiming at the technology of hydraulic fracturing assisted oil displacement which combines fracturing, seepage and displacement, an experimental system energy storage flowback in process has been developed used to simulate mechanism percolation, storage, chemical agents whole process. The research shows that agent could be directly pushed deeper area low medium permeability reservoirs, avoiding viscosity loss adhesion retention near pay zone; addition, this effectively enlarge swept volume,...
Owning to its various advantages, the lithium-sulfur battery is one of research hot spots for new energy storage systems. Diverse hollow structures with specific morphologies have been used as sulfur host materials adsorb or/and catalyze polysulfides, and can in particular concurrently inhibit volume expansion during electrochemical processes batteries. However, space a large will restrict performance cell under high area loading, which very important indicator practical applications...
Verified emissions announcements are the most influential events in European Union trading scheme (EU ETS); they reveal demand information and have a significant impact on carbon market. The extant literature tends to focus examining impacts of these verification prices allowances, while scholars barely discuss how behaviors react announcements. Moreover, studies carried out from macroeconomic perspective. This paper fills this gap by analyzing verified comoves Phase I (2005–2007) II...
InGaP/GaAs/Ge triple-junction solar cells were irradiated with 5.1 MeV alpha particles different fluences. The degradations of the optical and electrical properties described in terms variation short-circuit current (Isc), open-circuit voltage (Voc), maximum power (Pmax), spectral response (SR), photoluminescence (PL) versus alpha-particle degradation modeling Isc Voc under 1 MeV, 3 irradiation was performed by calculating introduction rate non-radiative recombination centers,...
An electrochemical deposition strategy for discrete Cr nano-nuclei to achieve ultrathin Cu foil stripping was proposed. The results indicated that this method could be utilized prepare foils with a thickness of about 1.34 μm. nucleus density directly affects the performance, surface roughness, and resistivity foils. Under our experimental conditions, performance best at 15.7×109 cm−2 4.95×10−7 Ω·m, 9.2% lower than conventional coating 0.67 μm in 15.8% potassium dichromate, tensile strength...
The numerical simulation of hydraulic fracturing fracture propagation is the core content design and construction. Its results directly affect effect fracturing, can effectively guide construction plan reduce risk. At present, two-dimensional or quasi-three-dimensional models are mainly used, but most them used to simulate vertical fracturing. There errors in application process. In this paper, a three-dimensional mathematical model, including an elastic rock mechanics equation material flow...
Transparent, brittle materials, like glass, are used in various applications due to their advantages of mechanical and optical properties. However, hard nature causes significant challenges researchers when they design test a new machining process. In order optimize this time-consuming process, discrete element method (DEM) is applied simulate the cutting process soda-lime glass study. The first step create synthetic material that behaves glass. Then, macroproperties calibrated by adjusting...
Abstract Internal strain and its distribution within the crystal lattice play crucial roles in modulating dislocation activities, thereby affecting mechanical properties of materials. Through synergistic application integrated differential phase contrast, situ transmission electron microscopy characterizations, computational simulations, a method is unveiled for homogenizing pinning NiCoCr multi‐principal element alloy (MPEA) through introduction high concentration oxygen atoms with...
Nonlinear differential equations are sometimes found by using harmonic balance principle. If it is based on the complex power theory, some much more correct and rational results can be obtained. Non-autonomous circuits include two components, forced self-excited oscillation, they must satisfy respectively balancing condition of power. When we study nonautonomous circuit, notable questions should considered. On one hand ,the existence oscillation circuit which contains dissipative elements...
Demands for producing high quality glass components have been increasing due to their superior mechanical and optical properties. However, hardness brittleness, they present great challenges researchers when developing new machining processes. In this work, the discrete element method (DEM) is used simulate orthogonal of synthetic soda-lime workpieces that are created using a bonded particle model installed with four different types seed cracks. The effects these cracks on performance...
A method is described to measure temperature on rake face and flank during high speed milling through the combination of using a non-contact infrared pyrometer drilling two holes in workpiece. One was vertical direction feed for measuring face, other parallel face. The enabled probe beam go them reach tool surface directly. avoids any hole can be used interface This technique has potential application monitoring analyzing wear machining difficult-to-cut materials.
The paper mainly investigates the effect of different materials on metal foam magnetorheological (MR) fluid damper by simulation and experiment. damper, with MR stored in foam, has advantages low cost long lifetime. First software ANSYS FEM is used to simulate magnetic field foams, flux density working gap distribution are obtained excited current. Besides, a testing system, including DC motor speed controller, force sensor amplifier, DAQ card PC LabVIEW software, built investigate its...
An electro-rheological (ER) fluid is a new kind of smart material which has been widely applied to various engineering problems. This paper discusses the response analysis vibration system with ER dampers using viscous and bilinear hysteresis damping model. Two numerical examples for single degree freedom multiple degrees system, are given illustrate applications present theory. The comparisons computational results those experiment show that method valid.
Abstract The most challenging drilling problems encountered in Tahe Oilfield occurred the deep salt formations. Most holes lost are caused by stuck strings, casing, and collapsed casing because of special Particular research is conducted to solve these problems. At first, occurrence arose formations identified detail. Then components typical rocks analyzed, properties such as plasticity, solubility, stability, stress sensibility measured, some new techniques evaluated, integrated developed....
<p id="C1">During the COVID-19 pandemic, international financial markets experienced severe turbulence. Under background of "Made in China 2025", substantial entity enterprises have a large demand for non-ferrous metals. With enhancement attributes metals, it is vital to prevent systemic risk contagion metal markets. In this article, ensemble empirical mode decomposition method used decompose prices eight important metals futures, and then dynamic DY spillover index model established from...
This study investigated the microstructure, microhardness, and residual compressive stress of 14Cr12Ni3Mo2VN martensitic stainless steel treated with high-frequency induction quenching (HFIQ) laser shock peening (LSP). Using rotating bending corrosion fatigue testing, performance was analyzed. Results show that a microstructural gradient formed after HFIQ LSP: surface layer consisted nanocrystals, subsurface short lath martensite, core thick martensite. A hardness introduced, reaching 524...