A5100407242- Cavitation Phenomena in Pumps
- Hydraulic and Pneumatic Systems
- Water Systems and Optimization
- Oil and Gas Production Techniques
- Fluid Dynamics and Turbulent Flows
- Nuclear Engineering Thermal-Hydraulics
- Advanced Image and Video Retrieval Techniques
- Hydraulic flow and structures
- Image Retrieval and Classification Techniques
- Semiconductor materials and devices
- Cyclone Separators and Fluid Dynamics
- Robotics and Sensor-Based Localization
- Advancements in Battery Materials
- Drug Transport and Resistance Mechanisms
- Remote Sensing and LiDAR Applications
- Scientific and Engineering Research Topics
- Human Pose and Action Recognition
- Aerosol Filtration and Electrostatic Precipitation
- Power Transformer Diagnostics and Insulation
- Infection Control and Ventilation
- Fluid Dynamics and Mixing
- Advanced Battery Materials and Technologies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Myasthenia Gravis and Thymoma
- Advanced Memory and Neural Computing
Peking University
2012-2025
Liaoning University of Traditional Chinese Medicine
2025
State Administration of Traditional Chinese Medicine of the People's Republic of China
2025
Jiangsu University
2015-2024
Georgia Institute of Technology
2024
Ocean University of China
2023-2024
Institute of Geographic Sciences and Natural Resources Research
2024
Chinese Academy of Sciences
2023-2024
Beijing National Laboratory for Molecular Sciences
2023-2024
Institute of Chemistry
2023-2024
Abstract Flexible and stretchable transparent electrodes are widely used in smart display, energy, wearable devices other fields. Due to the limitations of flexibility stretchability indium tin oxide electrodes, alternative have appeared, such as metal films, nanowires, conductive meshes. However, few above can simultaneously excellent flexibility, stretchability, optoelectronic properties. Nanofiber (NF), a continuous ultra-long one-dimensional material, is considered be one ideal materials...
Developing highly active materials that efficiently utilize solar spectra is crucial for photocatalysis, but still remains a challenge. Here, we report new donor-acceptor (D-A) covalent organic framework (COF) with wide absorption range from 200 nm to 900 (ultraviolet-visible-near infrared light). We find the thiophene functional group accurately introduced into electron acceptor units of TpDPP-Py (TpDPP: 5,5'-(2,5-bis(2-ethylhexyl)-3,6-dioxo-2,3,5,6-tetrahydropyrrolo...
The utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in consumption. Water electrolysis, utilizing pure water, has proven to be robust technology clean production. Recently, seawater electrolysis emerged as an attractive alternative due the limitations deep-sea regions imposed by transmission capacity long-distance undersea cables. However, faces several challenges, including slow kinetics oxygen evolution reaction...
Loading distribution significantly affects the flow field in impeller channel, but research on effects of different loading forms performance mixed-flow pumps is relatively scarce. In this study, three typical pump models, namely front-loading model (FLM), middle-loading (MLM), and back-loading (BLM), were designed by changing at shroud using inverse design method. The energy losses within models analyzed quantitatively visually entropy generation results show that front-loading,...
Abstract In this work, the unsteady Reynolds-averaged Navier–Stokes (URANS) and three hybrid Navier–Stokes-large eddy simulation (RANS-LES) models are employed to resolve vortical flows in a typical single-stage side channel pump, evaluate suitability of these advanced turbulence predicting pump hydraulic performance unstable swirling flows. By comparison overall performance, it can be observed that results obtained by scale-adapted (SAS) closer test data than shear stress transport (SST),...
Abstract Perovskites field‐effect transistors (PeFETs) have been intensively investigated for their application in detector and synapse. However, synapse based on PeFETs is still very difficult to integrate excellent charge carrier transporting ability, photosensitivity, nonvolatile memory effects into one device, which important developing bionic electronic devices edge computing. Here, two‐dimensional (2D) perovskites are synthesized by incorporating fused π‑conjugated...
Mixed-flow pump is a general purpose hydraulic machinery in many fields of fluid transport for its advantages wide efficient operation flow rate range, but stability restricted by cavitation. To obtain the cross effect cavitation and on pressure pulsation, high-precision experimental system was first established to monitor signals at four key positions, obtaining their time domain; second, based this tested results, frequency domain analysis technique continuous wavelet transform adopted...
This paper seeks to predict the performance of side channel pump by considering influences different wrapping angles. Firstly, three cases 1, 2 and 3 are modeled with angles 15°, 30° 45°, respectively. Secondly, physical parameters comprising exchanged mass flow, pressure velocity distributions plotted at best efficiency point (QBEP) analyze internal flow characteristics. Since exchange times depend on size angle, angle has significant effects head performance. Case 1 smallest recorded...
Cavitation and the corresponding induced vibration characteristics in a centrifugal pump under part load (0.4Qd, Qd is rated flow) conditions were investigated by combining numerical simulation experimental analysis to determine internal flow signals different cavitation conditions. Under conditions, initiated at inlet of blades close tongue. Expansion low-pressure region increases size vortex passages, which severity instability during severe cavitation. As develops, random generation rapid...
Two-dimensional covalent organic frameworks (2D COFs), featuring a large surface area and 1D pore structure, serve as promising scaffolds for anchoring functional guest compounds, which can significantly enhance their performance thus expand potential applications. Postsynthetic strategy COFs functionalization is versatile but challenging because of tedious procedure with high time energy consumption, generation excess reaction waste, damage to COF crystallinity. We report in this work...
Abstract Hydropower has been the leading renewable source and cheapest ways to generate electrical energy in world. In recent years, there a major upsurge hydropower development because of use pump as turbine (PAT). However, operational reliability PAT is greatly affected by unsteady flow fields; therefore, it important examine behavior which can be used reference reduce noise, vibration, cavitation performance for centrifugal pumps working turbines. Thus, objective this study was evaluate...
Abstract Previous investigation on side channel pump mainly concentrates parameter optimization and internal unsteady vortical flows. However, cavitation is prone to occur in a pump, which challenging issue promoting performance. In the present study, cavitating flow investigated numerically by turbulence model of SAS combined with Zwart model. The vapors inside firstly impeller passage near inlet then spread gradually downstream passages decrease NPSHa. Moreover, strong adverse pressure...
Abstract Challenges associated with stretchable optoelectronic devices, such as pixel size, power consumption and stability, severely brock their realization in high-resolution digital imaging. Herein, we develop a universal detachable interface technique that allows uniform, damage-free reproducible integration of micropatterned electrodes for pixel-dense intrinsically organic transistor arrays. Benefiting from the ideal heterocontact short channel length (2 μm) our transistors, switching...
Typical industrial blade side channel pumps with tip cuts have been used for many years because the profile has significant effect on performance of pump. To investigate cutting angle energy conversion mechanism pump, original and blades different angles were studied in detail. A comprehensive analysis revealed that enhances hydraulic especially when is equal to 20°. The act reduces intersection exchanged inflow outflow between impeller channel, at outer radius, eliminates secondary flow...
Due to the centrifugal effect of radial impeller, side channel pumps are a kind regenerative that provide high head at low flow rate. The geometry impeller affects patterns and energy conversion directly, greatly influencing performance pumps. To investigate blade profile for suction on pump, three different base angles 10°, 20°, 30°, respectively, were discussed analyzed both with numerical experimental methods. hydraulic performance, exchange mass flow, velocity vectors in detail. work was...
The annular volute is typically used in a slurry pump to reduce the collisions between solid particles and tongue achieve better resistance blocking. However, only limited studies regarding volutes are available, there no systematic design method for volutes. In this study, influence of casing cross-sectional flow area on hydraulic loss, pressure pulsations, radial force under varying working conditions centrifugal ceramic discussed detail. Experimental tests were conducted validate...