A5058650153- Cavitation Phenomena in Pumps
- Hydraulic and Pneumatic Systems
- Hydraulic flow and structures
- Semiconductor materials and devices
- Vibration and Dynamic Analysis
- Advancements in Semiconductor Devices and Circuit Design
- Wind and Air Flow Studies
- Probiotics and Fermented Foods
- Integrated Circuits and Semiconductor Failure Analysis
- Microbial Inactivation Methods
- Water Systems and Optimization
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Mixing
- CCD and CMOS Imaging Sensors
- Advanced Optical Sensing Technologies
- Fluid Dynamics and Vibration Analysis
- Cyclone Separators and Fluid Dynamics
- Nanowire Synthesis and Applications
- Food composition and properties
- Radiation Detection and Scintillator Technologies
Xidian University
2024
State Key Laboratory of Food Science and Technology
2024
Nanchang University
2012-2024
Shanghai University
2012-2017
Mokpo National University
2012
With the proportional reduction of metal–oxide–semiconductor field effect transistor (MOSFET) devices, short channel effect, parasitic and strength are significantly enhanced, proportion resistance increases, non-intrinsic noise also which seriously affects working efficiency device. However, existing research mainly focuses on intrinsic MOSFET, there is little noise; furthermore, models describing relationship between noise, device structure, bias have not yet been addressed. Therefore, in...
This paper is to study the cavitating characteristics in a low specific speed centrifugal pump with gap structure impeller experimentally and numerically. A scalable DES numerical method proposed developed by introducing von Karman scale instead of local grid scale, which can switch at RANS LES region interface smoothly reasonably. The SDES detect grasp unsteady flow structures, were proved around triangular prism cavitation pump. Through experimental research, it's shown that simulated...
The purpose of this study is to examine the validity J-Groove in controlling and suppressing swirl flow a draft tube Francis hydro turbine which may cause surge. "J-Groove" composed shallow grooves mounted parallel pressure gradient on wall very simple passive device suppress several abnormal phenomena turbomachinery. CFD analysis has been performed using model. calculated results velocity distribution show that considerable reduction attained by J-Groove. Besides vortex core around dead...
Whole oat milk (WOM) was prepared from germinated by an innovatively designed high-energy fluidic microfluidizer (HEFM). The results indicated that germination treatment significantly raised the content of total protein, γ-aminobutyric acid, phenolics, and reducing sugar, while it decreased starch β-glucan. Oat with a time 48 h had best nutritional quality for producing WOM. physical stability WOM effectively improved HEFM treatment. apparent viscosity increased, instability index reduced...
The gap drainage impeller is a new structure of which based on the idea flow control, and it has been validated in experiments that this can increase pump efficiency. purpose paper to explore valid numerical analysis method for simulation low specific speed centrifugal pump, then investigate unsteady characteristics pump. internal simulations were done at multi-flow rates, calculated results analyzed comparison with experimental data hydraulic performance, pressure pulsation vibration...
Suppression of draft surge caused by vortex and cavitation in the tube is very important to improve turbine performance when operated range partial load condition. In present work, a series CFD analysis have been conducted load, design condition over Francis model with kind J-Grooves. The pressure contours, circumferential velocity vectors core regions are compared conditions or without Study results show that J-Grooves can suppress abnormal phenomena some extents on maintaining efficiency....
<sec>Small size metal-oxide-semiconductor field effect transistor (MOSFET), owing to their high theoretical efficiency and low production cost, have received much attention are at the frontier of transistors. At present, development is bottlenecked by physical limits due equal scaling down devices, which requires further improvement in terms materials choice device fabrication. As MOSFET devices scale nanometer scale, on one hand, resulting short channel affects severely thermal noise...
Avalanche photodiodes (APDs) produce noise during operation, which affects the device performance. However, previous research on its is mainly theoretical analysis and only reflected as optical noise. Therefore, according to characteristics of APD material mechanism generation, main analyzed in this paper. First, test method APDs established, including testing dark noise, multiplication high frequency bands. The noises are 1/f thermal shot generation recombination suppressed by Fermi–Dirac...