A5083102027- Quantum Mechanics and Non-Hermitian Physics
- Algebraic and Geometric Analysis
- Quantum Mechanics and Applications
- Quantum and Classical Electrodynamics
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Electromagnetic Simulation and Numerical Methods
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Experimental and Theoretical Physics Studies
- CO2 Reduction Techniques and Catalysts
- Quantum chaos and dynamical systems
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Spectral Theory in Mathematical Physics
- Membrane-based Ion Separation Techniques
- Photonic and Optical Devices
- Electromagnetic Launch and Propulsion Technology
- Glutathione Transferases and Polymorphisms
- Orbital Angular Momentum in Optics
- Electromagnetic Scattering and Analysis
- Ionic liquids properties and applications
- Pulsed Power Technology Applications
- Neural Networks and Reservoir Computing
- Advanced Battery Technologies Research
Chinese Academy of Social Sciences
2023
Zhejiang University
2021
State Key Laboratory of Modern Optical Instruments
2021
Beijing University of Chemical Technology
2018-2019
Beijing Advanced Sciences and Innovation Center
2018
State Key Laboratory of Chemical Engineering
2018
Wuhan No.1 Hospital
2003
National Astronomical Observatories
2000
We developed a novel methodology for the general synthesis of non-precious transition metal–nitrogen–carbon electrocatalysts based on formamide condensation.
Abstract As a significant part in optical computation, analogue spatial/temporal differentiators could play great role all‐optical signal processing, feature extraction, and storage. In the past few years, they have experienced rapid development but mostly for single function. For many scenarios, computation with integrated functionalities is highly desired. this work, an spatiotemporal differentiator utilizing all‐dielectric multilayer proposed. The film stack specifically engineered to...
The lithium–sulfur (Li–S) battery is considered as a promising chemistry for next-generation energy storage on the merits of low cost and high density. However, sluggish redox kinetics shuttling effect lithium polysulfides (LiPSs), especially at sulfur loading, result in utilization, Coulombic efficiency, short cycle life. Herein, an entangled N-doped carbon nanotube array with encapsulated Co nanoparticles has been constructed used efficient host cathode featuring both physical chemical...
We describe in detail the extinction correction procedures used for Beijing‐Arizona‐Taiwan‐Connecticut Sky Survey (BATC Survey). The survey covers spectral range 3200–9900 Å by utilizing a set of 15 intermediate‐band filters. These filters are specifically designed to exclude most bright and variable night‐sky emission lines. also present coefficients filter passbands typical photometric nights at Xinglong Observing Station, Beijing Astronomical Observatory (where observations being carried...
Electrochemical CO2 reduction reaction (CO2RR) is a promising approach for conversion of to value-added chemicals. In this contribution, we demonstrated an electrode design strategy via wettability control and fabricated freestanding three-dimensional electrode. This created more three-phase (solid–liquid–gas) contacts due the sufficient amount gas bubbles attached surface under catalytic turnover conditions ongoing change electrolyte wetting, replacement by bubble promotes activity CO2RR....
Insect glutathione S-transferases (GSTs), a multifunctional protein family, play crucial role in detoxification of plant defensive compounds. However, they have been rarely investigated Sitodiplosis mosellana, destructive pest wheat worldwide. In this study, we characterized for the first time delta (SmGSTd1) and two epsilon GST genes (SmGSTe1 SmGSTe2) analyzed their expression patterns functions associated with adaptation to host defense species.
The intrinsic polysulfide shuttle in lithium–sulfur (Li–S) batteries have significantly limited their practical applications.
The fabrication of cost effective and efficient electrocatalysts with functional building blocks to replace noble metal ones is great importance for energy related applications yet remains a challenge. Herein, we report the hierarchical structure containing CNTs/graphene/transition-metal hybrids (h-NCNTs/Gr/TM) excellent bifunctional oxygen electrocatalytic activity. synthesis was rationally designed by growth shorter nitrogen-doped CNTs (S-NCNTs) on longer NCNTs arrays (L-NCNTs), while...
The iterative decomposition coupling formulation of the precise integration finite element method (FEM) and the time domain boundary (TD-BEM) is presented for elstodynamic problems. In formulation, FEM node and BEM node are not required to be coincident on common interface between sub-domains, therefore, the independently discretized. force displacement converting matrices used transfer data BEMnodes renew nodal variables in process iterations un-coincident node. elastodynamics current...
Using the China unitary principle to test Dirac theoryfor hydrogen atomic spectrum shows that standard function withthe energy levels is only one formal solutions of theDirac-Coulomb equation, which conceals some pivotal mathematicalcontradictions. The theorem existence solution equationrequires an important modification angular momentum constantthat was defined by Dirac's algebra. It derives modified radial Diracequation has consistency involving quantum neutronradius and neutron binding...
We show that one of exact solutions the second-order Dirac-Coulomb equation were pseudo. In corresponding original literature, it was considered mass electron with a Coulomb potential position-dependent, but obtained eigenvalues set not inevitable mathematical deduction given Dirac equation, and equations couplet first-order position-dependent electron. present paper, we obtain correct solution introduced differential equations. This new would be tenable only when wave is correct, there any...
There actually does not exist the plane electromagnetic wave described by sutra theory that electric field and magnetic are in phase everywhere. The solut ion of Maxwell equations depends on original value or boundary conditions. According to different fixed-solution conditions, p lane modes obtained different. results indicate is a transverse wave; at positions, mplitudes periodically changing blazed changin g different, so amplitudes field. differe nce between too.
We open out one of incorrect solutions the Driac equation in Coulomb field given a published paper. By introducing transformation function, paper transformed original radial first-order Dirac-Coulomb into two second-order equation. However, each differential equations has energy eigenvalues set. The wrote forms, and then gave distinguished eigenvalues. mathematical procedure is not correct. For same quantum system, function yields different eigenvaluse, result violates uniqueness solution....
One of the simplified solutions Dirac equations with pure Coulomb potential given in a paper published 1985 is pseudo. The original solved by introducing transformation functions two strange parameters and b to transform system first-order differential into uncoupled second order. However, not only eigenvalues sets violate uniqueness solution but also said second-order are any necessarily mathematical deduction. In order determine introduced parameters, formally, author actually some...
As electromagnetic pulse (EMP) weapons are widely used in modern maritime operations, the electronic equipment of shipboard integrated radio frequency (RF) systems vulnerable. In order to analyse interference, this paper introduces waveform and parameter characteristics high-power microwave (HPM), ultra-wideband (UWB) pulse, high-altitude nuclear explosion (HEMP), studies coupling effect typical strong on RF system. By changing incident direction, polarization amplitude law phased array...
For a three-cell constant cellular interfering network, new property of alignment is identified, i.e., interference (IA) solution obtained in an user-cooperation scenario can also be applied non-cooperation environment. By using this property, algorithm proposed by jointly designing transmit and receive beamforming matrices. Analysis numerical results show that more degree freedom (DoF) achieved compared with conventional schemes most cases.
The system of Maxwell equations with an initial condition in a vacuum is solved cylindrical coordinate system. It derives the transverse electromagnetic wave mode which electric fleld and magnetic are not phase. Such can generate exist actual application, there no violation law conservation energy during interchanges.