A5100429994- Laser Material Processing Techniques
- Fluid Dynamics and Heat Transfer
- Advanced machining processes and optimization
- Inorganic Chemistry and Materials
- Manufacturing Process and Optimization
- Hydrogen Storage and Materials
- Aluminum Alloys Composites Properties
- Advanced Measurement and Metrology Techniques
- Advanced Battery Materials and Technologies
- Advanced Numerical Analysis Techniques
- Cyclone Separators and Fluid Dynamics
- Heat transfer and supercritical fluids
- Laser-induced spectroscopy and plasma
- Electrochemical sensors and biosensors
- Fluid Dynamics Simulations and Interactions
- Nanomaterials for catalytic reactions
- Aluminum Alloy Microstructure Properties
- Atmospheric aerosols and clouds
- Electrocatalysts for Energy Conversion
- Solidification and crystal growth phenomena
- Advanced Surface Polishing Techniques
- Photonic Crystals and Applications
- Material Dynamics and Properties
- Air Quality Monitoring and Forecasting
- Heat Transfer and Optimization
University of Shanghai for Science and Technology
2021
Nanjing University of Science and Technology
2020
Hebei University of Technology
2018-2019
Yanshan University
2004-2019
Nankai University
2019
Injecting ultra-low-temperature fluids, such as liquid carbon dioxide (CO2) and nitrogen (LN2), into deep, low-permeability reservoirs for fracturing is an emerging waterless technology. When these fluids enter the reservoir, they rapidly exchange heat with fracture walls, triggering intense cold shock, which influences development. Although many scholars have studied effects of freezing thawing on coal seams, initial thermal shock process when LN2 first enters rock mass remains unclear....
Differential scanning calorimeter combined with flux (dehydrated B2O3) processing was used to realize and precisely measure the undercooling of germanium melts. The highest obtained in this way 190 K. Relations between cooling rate or overheating temperature are analyzed respectively. is found be increased increasing range from 5 40 K/min. At a given rate, reached melt, but tends constant at last. Crystallization undercooled melt investigated same time. It clearly shown that, higher shorter...
In order to measure aerosol in gas of electronic and accurate manufacturing industry, a new method on measuring dust content with high precision by using superfine purity fiberglass is presented. As Fiberglass has the advantage small diameter porosity, will be intercepted completely when flows through sampling tube filled fiberglass. Dust can calculated condition that volume flowing pipe at unit time measured. Collected efficiency increases filling thickness, ratio single fiber collected...
Utilizing continues-wave or pulsed laser to induce nano-structures on various material surfaces is one significant method in nano-fabrication technology. In this report, we investigate the formation of high spatial frequency periodic structures Polyvinyl Pyrrolidone (PVP) film by a linearly polarized femtosecond laser. Ferric (Fe) ions are introduced into improve photosensitivity. Regular nano-gratings with periods at range 60-100nm, which about tenth irradiating wavelength, can be induced....
In this paper, by using a computer algebra system, we prove that ternary Loop subdivision scheme can guarantee C 1 regularity at the extraordinary point of surface based on construction and analysis its matrix characteristic maps. Besides, an interval is given for sub-dominant eigenvalue matrix, which rules always generate surface. Finally, propose new edge rule. This And also comparing with rules, has simpler form faster convergence speed around point.
The stress field of compound cast rollers during centrifugal casting process was investigated in this work. A finite element (FE) model built to simulate the internal fields cooling process, which phase transformation considered. mechanical parameters employed numerical simulation were measured by using thermal/mechanical simulator. residual roller method X-ray analyzer. simulated results are agreement with ones very well. According model, temperature and simulated.
A new method on dehydrating mist in gas with high efficiency is presented. Mist can be dehydrated by the bent plate dehydration. Based model of steady flow incompressible Newtonian fluid, difference equations and pressure field dehydration equipment are built. Numerical Solution vorticity, stream function also obtained. The solved using matlab Version 6.5. results show that loss mostly affected its structure parameters inlet velocity. To decrease loss, length at 120 mm, turning angle less...
With the improvement of machining accuracy and efficiency, heat generation guideway becomes crucial problem which will cause thermal convex deformation. Thermal deformation accounts for about 22.7% total errors is one main factors affecting machine tool. A conservation energy-based optimization method proposed to balance temperature field reduce The strategy this transfer from high regions lower through a system. structure contact area system are determined according output input ratio...