A5024580436- Quantum Electrodynamics and Casimir Effect
- Mechanical and Optical Resonators
- Thermal Radiation and Cooling Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Dark Matter and Cosmic Phenomena
- Solar Thermal and Photovoltaic Systems
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Solar-Powered Water Purification Methods
- Advanced Sensor and Energy Harvesting Materials
- solar cell performance optimization
- Radio Frequency Integrated Circuit Design
- Layered Double Hydroxides Synthesis and Applications
- Neutrino Physics Research
- Analog and Mixed-Signal Circuit Design
- Phase Change Materials Research
- Advancements in PLL and VCO Technologies
- Aluminum Alloys Composites Properties
- Advanced Materials and Mechanics
- Advancements in Battery Materials
- Terahertz technology and applications
- Semiconductor materials and devices
- Nanomaterials and Printing Technologies
University of Hong Kong
2015-2021
Hong Kong University of Science and Technology
2015-2021
Donghua University
2020-2021
Kunming University of Science and Technology
2021
Southeast University
2014-2020
University of Houston
1990-2019
Hampton University
1994-2017
Harbin University of Science and Technology
2012
Tianjin University of Technology
2006
Thomas Jefferson National Accelerator Facility
2000
We demonstrate a W–Ni–YSZ cermet-based solar absorber with high absorptance, low infrared emittance and thermal stability up to 600 °C.
Nanofluid of graphene-based amphiphilic Janus nanosheets produced high-efficiency tertiary oil recovery at a very low concentration (0.01 wt %). The more attractive way is to use nanofluid during the secondary stage, which can eliminate stage and save huge amounts water, especially times when price low. Here, we continue report our findings on application same in recovery, increased efficiency by ≤7.5% an ultralow (0.005 Compared with nanofluids homogeneous nanoparticles, achieved higher...
The key to bringing the electrocatalytic nitrogen fixation from conception application lies in development of high-efficiency, cost-effective electrocatalysts. Layered double hydroxides (LDHs), also known as hydrotalcites, are promising electrocatalysts for water splitting due multiple metal centers and large surface areas. However, their activities unsatisfactory. Now, a simple effective way phosphorus doping is presented regulate charge distribution LDHs, thus promoting adsorption...
Stretchable transparent electrodes are key elements in flexible electronics and e-skins. However, existing stretchable electrodes, including graphene sheets, carbon nanotube, metal nanowire networks, weakly adheres to the substrate by van der Waals forces. Such suffer from poor scratch-resistance or durability, this issue has been one of biggest problems for their applications industry. Here we show that, introducing a Au–S bond between Au nanomesh (AuNM) underlying elastomeric substrate,...
Quantum fluctuations give rise to Casimir forces between two parallel conducting plates, the magnitude of which increases monotonically as separation decreases. By introducing nanoscale gratings surfaces, recent advances have opened opportunities for controlling force in complex geometries. Here, we measure rectangular regimes not accessible before. Using an on-chip detection platform, achieve accurate alignment so that they interpenetrate is reduced. Just before interpenetration occurs,...
The next generation of flexible electronics will require highly stretchable and transparent electrodes, many which consist a relatively stiff metal network (or carbon materials) an underlying soft substrate. Typically, such stiff-soft bilayer suffers from wrinkling or folding when subjected to strains, causing high surface roughness seriously deteriorated optical transparency. In this work, with giant effective Poisson's ratio on substrate is found be under biaxial tension upon deformation,...
The MEGA experiment, which searched for the muon- and electron-number violating decay μ+→e+γ, is described. spectrometer system, calibrations, data taking procedures, analysis, sensitivity of experiment are discussed. most stringent upper limit on branching ratio, B(μ+→e+γ)<1.2×10−11 with 90% confidence, derived from a likelihood analysis.Received 6 November 2001DOI:https://doi.org/10.1103/PhysRevD.65.112002©2002 American Physical Society
The promising quad-band solar spectral splitter incorporates the properties of optical filter and spectrally selective thermal absorber can direct PV band to modules absorb energy for process with low losses. It provides a new strategy splitting offers potential ways hybrid PVT system design. As service our authors readers, this journal supporting information supplied by authors. Such materials are peer reviewed may be re-organized online delivery, but not copy-edited or typeset. Technical...
This article reports the design and fabrication of a new double cermet-based low-mid temperature solar selective absorber based on TiOx cermet layers, which were deposited with single Ti target by varying O2 partial pressure in sputtering chamber as reactive gas. High metal volume fraction 1 low 2 0.15 mTorr 0.25 mTorr, respectively, direct current power density 6.58 W cm−2. The complex refractive indices from ellipsometry used to absorber. reflectance, thermal stability, morphology studied...
This paper presents a low-pass filter (LPF) for an ultra-high frequency (UHF) radio identification (RFID) reader transmitter in standard SMIC 0.18 μm CMOS technology. The active-RC topology and Butterworth approximation function are employed mainly high linearity flatness respectively. Two cascaded fully-differential Tow-Thomas biquads chosen low sensitivity to process errors strong resistance the imperfection of involved two-stage operational amplifiers. Besides, LPF is programmable order...
Abstract The key to bringing the electrocatalytic nitrogen fixation from conception application lies in development of high‐efficiency, cost‐effective electrocatalysts. Layered double hydroxides (LDHs), also known as hydrotalcites, are promising electrocatalysts for water splitting due multiple metal centers and large surface areas. However, their activities unsatisfactory. Now, a simple effective way phosphorus doping is presented regulate charge distribution LDHs, thus promoting adsorption...
Abstract The effect of the hardness a steel matrix by heat treatment on impact abrasive wear ZTAp/40Cr architecture composites is investigated. Of these composites, ZTA particles-reinforced 40Cr composite and pure formed 3D network interpenetrating structure. results show that with martensite demonstrate best resistance, which 32.76% higher than troostite 163.60% pearlite matrix. Under same quenching + 460 °C tempering conditions, resistance 79.0% homogeneous composites. mechanism analysis...
Bimetallic compounds such as hydrotalcite‐type layered double hydroxides (LDHs) are promising electrocatalysts owing to their unique electronic structures. However, abilities toward nitrogen adsorption and reduction undermined since the surface‐mantled, electronegative –OH groups hinder charge transfer between transition metal atoms molecules. Herein, a smart interfacing strategy is proposed construct coupled heterointerface LDH 2D g‐C 3 N 4 , which proven by density functional theory (DFT)...
In order to study the flow characteristics in stator and air gap for a large air-cooled turbo-generator with multi-air-zone of stator, 3-D physical model includes rotor, was established. Numerical simulation carried out by finite volume method according computational fluid dynamics (CFD) principle, based on some corresponding boundary conditions assumptions. The results show that cooling flowing into air-gap through outlets rotor wedge rotates spiral trajectory higher velocity than ambient....
In order to study the effect of composite volume fraction on impact wear properties composites in architecture composites, zirconium oxide toughened alumina particles(ZTAP) 3D network reinforced 40Cr steel matrix composites(ZTAP/40Cr composite) with different fractions(35vol%, 50vol%, 65vol%) were fabricated by squeeze casting, which subjected no abrasives test an energy 1.5 J after quenching at 850℃ and tempering 460℃. The results show that when area is 35vol%, 50vol% 65vol%, rates...