A5091465976- Atomic and Subatomic Physics Research
- Electronic Packaging and Soldering Technologies
- Advanced Frequency and Time Standards
- Gas Dynamics and Kinetic Theory
- Cold Atom Physics and Bose-Einstein Condensates
- Computational Fluid Dynamics and Aerodynamics
- Quantum optics and atomic interactions
- Industrial Vision Systems and Defect Detection
- Advanced Sensor and Energy Harvesting Materials
- 3D IC and TSV technologies
- Radiative Heat Transfer Studies
- Thermal properties of materials
- Image and Object Detection Techniques
- Numerical methods in engineering
- Nanofabrication and Lithography Techniques
- Thermal Radiation and Cooling Technologies
- Image Retrieval and Classification Techniques
- Injection Molding Process and Properties
- Educational Technology and Pedagogy
- Graphene research and applications
- Combustion and flame dynamics
- Nuclear Receptors and Signaling
- Composite Structure Analysis and Optimization
- Medical Image Segmentation Techniques
- Fluid Dynamics and Turbulent Flows
Changsha Normal University
2025
South China Agricultural University
2024
First Affiliated Hospital of Anhui Medical University
2024
Anhui Medical University
2024
Hebei University of Technology
2023
Woosuk University
2022-2023
Peking University
2021-2022
Huanghe Science and Technology College
2021
China University of Petroleum, Beijing
2021
Beihang University
2021
Object detection in optical remote sensing images (ORSIs) remains a difficult task because ORSIs always have some specific characteristics such as scale-differences between classes, numerous instances one image and complex background texture. To address these problems, we propose new Multi-Feature Pyramid Network (MFPNet) with Receptive Field Block (RFB) that integrates both local global features to detect scattered objects targets ORSIs. We build Module (M-FPM) two cascaded convolution...
The need for electrically insulating materials with a high in-plane thermal conductivity lateral heat spreading applications in electronic devices has intensified studies of layered hexagonal boron nitride (h-BN) films. Due to its physicochemical properties, h-BN can be utilised power dissipating such as an spreader material laterally redistributing the from hotspots caused by locally excessive flux densities. In this study, two types based test structures have been assembled and evaluated...
Hypersonic vehicles emit strong infrared (IR) radiation signatures that can be treated as a detecting source for object identification and routine diagnosis. This paper is aimed at examining the intrinsic characteristics of Boost-Glide Vehicle (BGV) under condition various Angles Attack (AOAs). A two-temperature model considering thermal chemical non-equilibrium effects coupled with Navier-Stokes equations solved by finite volume technique. gas–solid conjunction heat transfer also added into...
Graphitic carbon nitride nanosheets are synthesized as photocatalysts for thiol–ene reactions. They metal-free, highly visible-light active, recyclable and scalable.
In this paper, effects of the surface-catalysis efficiency on aeroheating characteristics are studied. The Navier–Stokes solver with a cell-centered finite-volume scheme, including finite-rate chemistry and two-temperature thermal nonequilibrium models, is implemented in work. ELECTRE flight trajectory at 53 km used for validating developed solver. Several cases different catalytic recombination coefficients studied to investigate catalysis under condition radiative equilibrium C series...
This research used low molecular surface modifiers, and observed that chemisorptions took place through the formation of a bond between silver an adsorbed molecule, which improved dispersion flakes in organic resin. Several different functionalizers, such as thioglycolic acid, silane di-acid, were to functionalize surface. Results shear viscosity, bulk resistivity etc. showed by using these isotropic conductive adhesives (ICAs) with lower viscosity better electrical conductivity at high...
In this paper, micro silver flakes and spherical particles were incorporated into the matrix resin of isotropic conductive adhesives (ICAs). Their electrical properties investigated. The total weight ratio fillers was kept at 75 wt% for all samples. When content 8 wt%, bulk resistivity bimodal ICAs reduced dramatically to as low 1.26×10-4 Ω•cm its viscosity 24,289 cP under 5rpm 25°. Scanning electronic microscopy (SEM) images showed well distributed in resin. addition, lap shear strength...
To evaluate the potential benefits of kerosene-based nanofluids as coolants for regenerative cooling system, a detailed numerical study turbulent heat transfer copper/n-decane nanofluid flowing inside miniature tube at supercritical pressures has been conducted. Numerical results reveal that copper nanoparticles can significantly improve performance in entire tube. This be explained by fundamental mechanism within near-wall flow region, reduction kinematic viscosity leads to increased...
The joint effect of electronic cigarette smoking and insufficient sleep duration on cardiovascular disease (CVD) was unclear. This cross-sectional study aimed to evaluate the association between cigarettes, duration, risk CVD among American adults. participants who completed survey from behavioral factor surveillance system in 2020 were included this study. status divided into never, former, current use. categorized (<6 h), appropriate (6-9 excessive (>9 h) groups. group defined as a patient...
With the rapid development of technologies for high density assembly and packaging in electronic industry, isotropic conductive adhesive (ICA) has been paid more attention as a potential substitute solder, due to its advantages low processing temperature, simple conditions good manufacturability. However, studies into reliability ICA are not abundant those solder. As composite material, failure feasibility only depends on variation performance different constituent parts, such temperature...
With the development of semiconductor technology, electronic packaging technology with increasingly high integration density is needed. Solder a traditional interconnect material widely used in industry, but now more attention being paid to isotropic conductive adhesive (ICA) as an environmentally friendly advantages low processing temperature, simple conditions and good manufacturability. However, compared solder, reliability studies ICA are still scarce. This paper aims enrich study ICA,...
The emissivity uniformity of a blackbody cavity can be determined by at different locations and areas. We used the Monte Carlo method to calculate local normal effective average isothermal concave cone, cylinder cylinder, cylinder-inner cone cavities with an identical length-radius ratio six. has highest uniformity, followed cavities. A both high as insensitivity specular reflection been demonstrated.
With the development of thermal management, interface material (TIM) plays a more and important role in electronic packaging. This paper reports study on fabrication nanofiber films used for nano-thermal (nano-TIM) with adhesive function. The nano-TIM high conductivity low resistivity has been fabricated by electrospinning process. In present work, hotmelt was added into solution to improve adhesion properties film. morphology film observed Scanning Electrical Microscope (SEM). have...
The need for faster and smaller, as well more reliable efficient consumer electronic products has resulted in microelectronic components that produce progressively heat. resultant reliability issues from the increased heat flux are serious hinder technological development. One solution microelectronics cooling applications is 2D materials applied spreaders these include monolayer graphene, graphene based films, hexagonal boron nitride BN films. In addition, thermal performances of spreader...
Compared to other commercial atomic clocks in the time keeping field, greatest advantage of cesium beam is their superior long-term stability. magnetic state-selection clocks, optically pumped have more interacting atoms, which results better stability potential. To achieve good stability, we propose methods including stabilization laser power and reconstruction circuits. They play a key role clocks. After 75 days continuous running measurement, released 5-day (7×10-15 Allan deviation) our...