A5082691669- Stability and Controllability of Differential Equations
- Advanced Mathematical Modeling in Engineering
- Advanced Mathematical Physics Problems
- Advanced Photocatalysis Techniques
- Remote-Sensing Image Classification
- Remote Sensing and Land Use
- Spectroscopy and Laser Applications
- Remote Sensing in Agriculture
- Optical Polarization and Ellipsometry
- Ammonia Synthesis and Nitrogen Reduction
- Differential Equations and Numerical Methods
- Caching and Content Delivery
- Advanced Measurement and Detection Methods
- Membrane Separation Technologies
- Mechanical Circulatory Support Devices
- Seismic Imaging and Inversion Techniques
- Surface Roughness and Optical Measurements
- Acoustic Wave Phenomena Research
- Optical Systems and Laser Technology
- Optical Imaging and Spectroscopy Techniques
- Neural Networks and Reservoir Computing
- Advanced Wireless Network Optimization
- Digital Media and Visual Art
- Calibration and Measurement Techniques
- Wireless Communication Networks Research
Xidian University
2008-2024
Shanghai Institute of Technology
2009-2024
Institute of Optics and Electronics, Chinese Academy of Sciences
2022
Chinese Academy of Sciences
2022
University of Michigan
2019
Fudan University
2006-2017
Nanyang Technological University
2017
Shaanxi University of Science and Technology
2012
Henan Polytechnic University
2011
Shanghai Library
2009
The Haber–Bosch (HB) process has provided most of commercial ammonia at the expense high energy consumption and CO2 emission. Nitrate electroreduction is showing great potential as an alternative route for green scale-up synthesis ambient conditions. However, performance lagged due to lack efficient electrocatalysts. In this work, we present facile uniform Cu nanodisks with exposed (111) facets highly active electrocatalyst electrochemical synthesis, delivering a yield 2.16 mg mg–1cat h–1...
Due to the noise interference and redundancy in multispectral images, it is promising transform available spectral channels into a suitable feature space for relieving reducing redundancy. The booming of deep learning provides flexible tool learn abstract invariant features directly from data their raw forms. In this letter, we propose an unsupervised change detection technique which combine belief networks (DBNs) analysis highlight changes. First, DBN established capture key information...
The electrocatalytic nitrate conversion of ammonia at ambient conditions provides not only a solution for restoring the imbalance in global nitrogen cycle but also sustainable alternative Haber-Bosch process. However, large-scale and efficient application denitrification has been limited by lack active catalysts with high selectivity reduction to N2. In this work, we present one-step processed synthetic strategy low temperature prepare carbon-nanobelts-supported uniform Cu Pd nanoclusters....
With the rapid increase of remote sensing images in temporal, spectral, and spatial resolutions, it is urgent to develop effective techniques for joint interpretation spatial-temporal images. Multitype change detection (CD) a significant research topic multitemporal image analysis, its core effectively measure difference degree represent among In this paper, we propose novel representation learning (DRL) network present an unsupervised framework multitype CD task. Deep neural networks work...
An 8-channel readout front-end (RFE) for long-term sleep quality monitoring is presented in this paper and features high common-mode rejection ratio (CMRR) low input referred noise. Each channel composed of an AC coupled instrumentation amplifier (IA) with chopping spike filter (CSF), a programmable gain (PGA), buffer, while the bias generator non-overlapping clock are shared by all channels. The proposed circuit, built standard 0.35 μ m CMOS technology, consumes 101 A from 2.7 V, occupying...
Doppler asymmetric spatial heterodyne spectroscopy (DASH) technique with the advantages of high spectral resolution and phase sensitivity can be considered as a combination (SHS) Michelson interferometer technique, which is very suitable for high-precision passive measurement velocity. Since larger optical path difference offset in one spectrometer arms corresponds to higher shift while suffering lower contrast interferogram, there an optimum measuring thus most sensitive. By comprehensively...
We consider a class of semilinear wave equations with memory and Neumann boundary conditions, being subject to frictional dissipation. As can be seen, their solutions have different properties from those in the case Dirichlet conditions (or Dirichlet–Neumann conditions). prove for some nonlinear terms growth exponent that all decay uniformly at least polynomial rate , when kernel decays exponentially or polynomially (with large enough degree r); other rates, depending on both q r, are also...
Change detection and analysis (CDA) is an important research topic in the joint interpretation of spatial-temporal remote sensing images. The core CDA to effectively represent difference measure degree between bi-temporal In this paper, we propose a novel representation learning network (DRLnet) effective optimization framework without any supervision. Difference measurement, unsupervised clustering are combined as single model, i.e., DRLnet, which driven learn clustering-friendly...
We consider the initial value problem of Moore–Gibson–Thompson equation with memory effect, being subject to Neumann boundary condition. Here, nonlinearity f is conservative and satisfies some polynomial growth conditions. Under condition that g(t) decays exponentially, we obtain uniform decaying rate energy solution. Moreover, show this decay optimal in sense there exists a class solutions exactly at rate.
Plasmonic metal oxides are promising photocatalysts for the artificial photosynthesis of green ammonia due to localized surface plasmon resonance (LSPR) enhanced photoconversion and rich oxygen vacancies improved chemisorption activation dinitrogen molecules. However, these unstable during photocatalytic process could be oxidized by photogenerated holes, leading vanishing LSPR. Here, we fabricated antimony-doped molybdenum trioxide nanosheets with stable plasmonic absorption extending into...
Semiconductor core/shell quantum dots (QDs) are considered promising building blocks to fabricate photoelectrochemical (PEC) cells for the direct conversion of solar energy into hydrogen (H 2 ). However, lattice mismatch between core and shell in such QDs results undesirable defects severe carrier recombination, limiting photo-induced separation/transfer solar-to-fuel efficiency. Here, we explore an interface engineering approach minimize core-shell CdS/CdSe x S 1-x (x=0.09~1) (g-CSG). As a...
We obtain the existence and decay rates of classical solution to initial-value problem a non-uniformly parabolic equation. Our method is set up two equivalent sequences successive approximations. One converges weak problem; other shows that for t > 0. Moreover, we show how bounds derivatives depend explicitly on interval with compact support in (0, ∞). Then study this solution.
An experimental study on the properties of total intensity radiation side-scattered by multiple particles when using linearly polarized incident light was undertaken. The scattering medium is suspending liquid consisting various concentrations which are 0.065µm, 0.123 µm, 0.220 0.360 0.494 µm or 1.240 in diameter and were mixed into filtered, distilled water. results show that variation regular as particles' sizes, concentrations, detecting depths varying detected plane distribution each...
Exponential stability of time varying singular distributed parameter system are discussed in Hilbert space. Some necessary and sufficient conditions for the exponential obtained by using functional analysis GE-evolution operator (i.e., generalized evolution operator). This research is theoretically important studying systems.
High-resolution and high-sensitivity transformation from frequency domain to time is demonstrated by a tracing-assisted dual microring integrated system. It promising for applications in follower, chemical or biological sensing environmental monitoring.