A5025635683- Turbomachinery Performance and Optimization
- Fluid Dynamics and Turbulent Flows
- Refrigeration and Air Conditioning Technologies
- Heat Transfer Mechanisms
- Computational Fluid Dynamics and Aerodynamics
- Aerodynamics and Fluid Dynamics Research
- Tribology and Lubrication Engineering
- Privacy-Preserving Technologies in Data
- Advanced Aircraft Design and Technologies
- Biomimetic flight and propulsion mechanisms
- Aerodynamics and Acoustics in Jet Flows
- Advanced Cellulose Research Studies
- Advanced Memory and Neural Computing
- Natural Fiber Reinforced Composites
- Cryptography and Data Security
- Combustion and flame dynamics
- Plasma and Flow Control in Aerodynamics
- Simulation and Modeling Applications
- Cyclone Separators and Fluid Dynamics
- High-pressure geophysics and materials
- Caching and Content Delivery
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- IoT and Edge/Fog Computing
- Fish Ecology and Management Studies
Beihang University
2016-2025
Tsinghua University
2011-2025
Xihua University
2020-2025
Concordia University
2025
Jilin University
2009-2024
State Key Laboratory of Superhard Materials
2024
Aero Engine Corporation of China (China)
2016-2024
CCCC Wuhan Harbour Engineering Design and Research (China)
2024
China Minmetals (China)
2023
Southwest Forestry University
2021-2023
Dynamically controlling terahertz (THz) wavefronts in a designable fashion is highly desired practice. However, available methods working at microwave frequencies do not work well the THz regime due to lacking suitable tunable elements with submicrometer sizes. Here, instead of locally individual meta-atoms metasurface, we show that rotating different layers (each exhibiting particular phase profile) cascaded metadevice speeds can dynamically change effective Jones-matrix property whole...
Abstract Dynamical controls on terahertz (THz) wavefronts are crucial for many applications, but available mechanism requests tunable elements with sub-micrometer sizes that difficult to find in the THz regime. Here, different from local-tuning mechanism, we propose an alternative approach construct wavefront-control meta-devices combining specifically designed metasurfaces and globally tuned graphene layers. Coupled-mode-theory (CMT) analyses reveal serves as a loss drive whole meta-device...
Image data have been extensively used in Deep Neural Network (DNN) tasks various scenarios, e.g., autonomous driving and medical image analysis, which incurs significant privacy concerns.Existing protection techniques are unable to efficiently protect such data.For example, Differential Privacy (DP) that is an emerging technique protects with strong guarantee cannot effectively visual features of exposed dataset.In this paper, we propose a novel privacy-preserving framework VisualMixer the...
Three-dimensional (3D) corner separation in a linear highly loaded compressor cascade is studied by using delayed detached-eddy simulation (DDES) method. This paper studies the flow mechanism of separation, including vortical structures and turbulence characteristics. The are analyzed distributions Reynolds stresses turbulent anisotropy also discussed detail. results show that there exist different kinds structures, such as horseshoe vortex, passage wake shedding “corner vortex.” Before...
The embedded software may migrate the collected data to server for DNN computation acceleration, which compromise privacy. We propose a framework that combines TEE and NNA address privacy leakage problem. design an NNA-friendly encryption method enables correctly compute encrypted linear input. Facing overhead of TEE-NNA interaction, we pipeline-based prefetch mechanism can reduce interaction overhead. Experimentally, our approach proves be compatible with wide range NPUs TPUs, improves...
Abstract Over recent years, the aeroelastic problem of fan blades has become significantly serious due to demand for high performance aero-engines. To explore issue flutter, instability is represented by aerodynamic damping. When inlet condition uniform, damping mainly caused temporal factor, and classic flutter usually does not occur usage mistuning. However, with existence circumferentially non-uniform components in distorted inflow, also affected spatial which may alter occurrence...
Wood-cement composites have the advantages of high flexural strength, toughness, and impact resistance. However, components such as hemicellulose lignin in wood chips can inhibit cement hydration, thus interface bonding between matrix is poor. In order to address these issues, alkali cooking (mass concentration 2–8%) silane coupling agent 1–5%) were used this study modify chips, resulting compressive strengths wood-cement prepared from different kinds modified evaluated. Further, XRD, SEM,...
The Nanling Range in South China is endowed with abundant Jurassic W–Sn and Cu skarn deposits; however, the ore-forming age process of these deposits lack adequate comparative studies. Huangshaping deposit coincidently develops both mineralization systems, providing a good window to address issues. Multiple generations hydrothermal scheelite were identified at Huangshaping, including SchA-1, SchA-2, SchA-3 system, SchB-1, SchB-2, SchB-3 system. Scheelite two systems has similar textural...
A distributed fan propulsion system can potentially achieve a 10%-20% fuel burn reduction compared with traditional podded engines. However, the ducted is continuously working under inflow distortion conditions caused by boundary layer ingestion, thus resulting in an increase of aerodynamic loss and decreasing aircraft overall benefit achievement. To control ingestion fan, design strategy based on lip-installed bump developed. The computational results show that effectively suppress...
Critical loading, a key parameter for evaluating the limit of pressure rise in cascade, plays fundamental role triggering compressor stall. This work identifies specified vortex aggregation as primary mechanism driving critical which subsequently accelerates stall onset. Through 2.5-dimensional (2.5D) cascade and three-dimensional simulations, mechanisms are comprehensively analyzed. In 2.5D an increased angle attack alters trajectory shedding vortices, causing them to spread...
Abstract The HSulf‐1 gene is an important factor that modulates the sulfation status of heparan sulfate proteoglycans (HSPGs) in extracellular matrix, resulting disturbance HSPG‐related signal transduction pathways. Recently, has been reported to be down‐regulated several human cancers. In this study, we first cloned and characterized 5′ promoter region (around 400 bp) contained high basal activity. We also found functional was hypermethylated a number cancer cell lines. Furthermore,...
Bionic micro air vehicles are currently being popularized for military as well civilian use and dragonflies display a wealth of skill in their remarkable flight capabilities. This study designs an asymmetric motion flapping-wing mechanism inspired by the dragonfly, using single actuator to achieve coupling stroke pitch motion. simulates dragonfly's wings designed experimentally validates laws aerodynamic characteristics mechanism. The analysis focuses on asymmetry wing's implications....