70 results about "Energy level" patented technology

The invention provides a partial discharge detection system based on a Rydberg atom quantum coherence effect, and the system comprises an optical excitation module which is used for transmitting two-photon laser to excite hot atoms to enter a Rydberg state; the atomic gas chamber is used for accommodating hot atoms and is coupled with an electromagnetic field generated by the partial discharge signal, so that the hot atoms generate energy level response change under the action of the electromagnetic field; the detection light path module is used for detecting a change signal of light signal intensity in the atomic gas chamber and converting the change signal into an electromagnetic response characteristic of an electromagnetic field; the signal acquisition and processing module is used for receiving the electromagnetic response characteristics, demodulating and analyzing the electromagnetic response characteristics and extracting characteristic parameters of the partial discharge signals; and the control and calibration module is used for receiving the characteristic parameters of the partial discharge signal, performing calibration based on an energy level frequency shift rule of Rydberg atoms, and outputting electric field intensity subjected to quantization calibration. The system can realize high-sensitivity, anti-interference and traceable detection of weak partial discharge signals.

Systems and methods of imaging a sample using a charged-particle beam apparatus are disclosed. The charged-particle beam apparatus may include a charged-particle source configured to generate primary charged particles, the primary charged particles forming a primary charged-particle beam along a primary optical axis, and a charged-particle detector comprising a plurality of con-centric segments of a charged-particle sensitive material configured to detect charged particles emitting from a sample after interaction of the primary charged-particle beam with the sample, wherein each segment of the plurality of concentric segments is configured to collect the emitted charged particles having a range of energy levels and a dominant energy level.

This provides a structure that exhibits a high degree of balance between durability, conductivity, and quantum efficiency. [Solution] A layered structure comprising a substrate and a high-density particle layer on the substrate, wherein the high-density particle layer contains nanoparticles with an inorganic film formed on its surface, the nanoparticles having a particle size of 1 nm to 50 nm, the high-density particle layer having a packing density of nanoparticles per unit volume of 30 vol% to 80 vol%, the inorganic film having a thickness of 0.1 nm to 5 nm, the energy level at the upper end of the valence band of the inorganic film being the same as or lower than the energy level at the upper end of the valence band of the nanoparticles, and the energy level at the lower end of the conduction band of the inorganic film being the same as or higher than the energy level at the lower end of the conduction band of the nanoparticles.

The application discloses a crude oil water content analysis method and device. The method comprises the following steps: obtaining low, medium and high energy level light quantum detection data of a penetrating crude oil sample; calculating photoelectric effect cross section coefficients of low and medium energy levels, simultaneously solving oil, gas and water phase fractions and calculating a first mixed density; combining Compton reaction cross section coefficient of high energy level data to calculate a second mixed density; comparing the deviation of the two mixed densities, if the deviation is greater than a preset threshold, the detection time is automatically extended for re-measurement; if the deviation is still greater than the preset threshold, it is determined that the sample is in a gas-containing or non-full-liquid state, the high energy level calculation result is actively removed, and only the low and medium energy level data are used to solve the phase fraction and normalized output the final water content. The application innovatively introduces a density deviation check and a dynamic delay mechanism, effectively distinguishes and separates the gas phase interference, and realizes non-contact and high-precision automatic water content detection.

This invention discloses a quantum cascade laser and its fabrication method, relating to the field of laser technology. The quantum cascade laser includes a substrate layer; a lower waveguide layer located on the substrate layer; an active layer located on the lower waveguide layer and including multiple injection layers located on the lower waveguide layer; and multiple light-emitting layers, wherein electrons in the light-emitting layers transition from high energy levels to low energy levels, suitable for exciting electrons to generate excitation light; wherein the light-emitting layers and injection layers are periodically stacked in an alternating cascade structure, each injection layer extracts low-energy electrons from the adjacent light-emitting layer above the injection layer and transports the low-energy electrons to the light-emitting layer of the previous period adjacent to the injection layer to form high-energy electrons, thereby transporting electrons between light-emitting layers belonging to two adjacent periods; and an upper waveguide layer located on the light-emitting layers, which can achieve a highly concentrated number of high-energy electrons, thereby realizing a large-scale, high-power quantum cascade laser.

Organic emissive devices are provided that include host structures with electron and / or hole transporting components having specific energy levels that promote good charge balance and enhanced charge capture. The disclosed energy level structures provide host systems that reduce exciplex formation and thereby promote improved device internal quantum efficiency and stability, or which intentionally include exciplex formation so as to modify the average orientation of the dipole.

The embodiment of the application discloses a high-dimensional NOT gate implementation method based on a lattice cold atom system and a related device. The method comprises sequentially exciting the first n energy levels of the lattice cold atom system through respective excitation frequencies, exciting k energy levels upwards, exciting the first n-1 energy levels after the upward excitation k-1 energy levels downwards, and exciting the n energy level after the upward excitation to the first energy level, thereby obtaining a high-dimensional NOT gate with a dimension of n, wherein k is an integer greater than n-1, so that the high-dimensional NOT gate is directly realized in the lattice cold atom system. The embodiment of the application is beneficial to reducing the depth of the quantum circuit, thereby reducing the accumulation and amplification of errors, and realizing high-dimensional quantum computing.

Disclosed are a light-emitting material, a light-emitting device, a display panel and a display device, the light-emitting material comprising: a light-emitting compound, by which it is possible to solve the problem that hole injection is difficult to improve while giving consideration to both a high T1 energy level and a shallow HOMO, so that the energy levels of HOMO and LOMO are more matched, the light-emitting material has high T1 energy level and shallow HOMO energy level, hole injection can be improved, and the light-emitting material has excellent light-emitting performance. And the formation of exciplexes is inhibited, so that holes and electrons can be injected into the light-emitting layer more smoothly.

The invention relates to a method for calibrating a two-level spin quantum system in the form of a double quantum dot comprising a left dot and a right dot, coupled to a microwave cavity by symmetric and antisymmetric magnetic fields, the system being subjected to a bias voltage, the method being characterized by the steps of: - setting the bias voltage (ε) to zero volts, - determining the wave function φp of each of the quantum dots, - calculating and / or setting the antisymmetric magnetic coupling constant αas and the symmetric magnetic coupling constant αs, calculating and / or setting the tunnel coupling constant and / or the symmetric magnetic coupling constant αs and / or the antisymmetric magnetic coupling constant αas.

The invention relates to the technical field of optical clock metering instruments, in particular to a microscopic particle mass measurement method and system based on an optical lattice clock, and the method comprises the steps: forming a one-dimensional horizontal shallow light lattice to constrain a to-be-measured microscopic particle based on an optical lattice clock platform; firstly, to-be-measured particles are subjected to laser cooling and then loaded to optical lattices, and the to-be-measured particles are prepared to a ground state single Zeeman sub-energy level through optical pumping. Then, modulating a beam of lattice light in the one-dimensional horizontal shallow light lattice to enable the lattice light to periodically shake; then, determining the line widths of clock transition spectral lines of the particles to be measured under different modulation amplitudes, and finding out the critical modulation amplitude corresponding to the minimum line width; and finally, according to the critical modulation amplitude and the lattice light wavelength, accurately deducing the absolute mass of the microscopic particles imprisoned by the light lattice.

The invention provides an organic compound and an organic electroluminescent device comprising the same, the organic compound has a structure as shown in a formula I. Through the design of a molecular structure and the synergistic effect between group structures, the HOMO and LUMO energy levels of a molecular skeleton can be adjusted, the organic compound has excellent bipolar charge transport characteristics, balanced transport of holes and electrons is realized, and the organic electroluminescent device has a good application prospect. Meanwhile, the organic semiconductor material has high singlet state energy level and triplet state energy level. The organic compound is used as a main body material of an organic electroluminescent device, the luminous efficiency of the device can be improved, the efficiency roll-off of the device is slow, the stability is better, and an existing organic electroluminescent functional material system is greatly enriched.

An organic EL device includes an emitting region and a first anode side organic layer. The first anode side organic layer contains a first material. The emitting region includes a first emitting layer containing first and second host materials and a second emitting layer containing a third host material. Energy levels of highest occupied molecular orbitals of the first material, the first host material, and the second host material HOMO(HT1), HOMO(H1), and HOMO(H2) satisfy a relationship of a numerical formula (Numerical Formula A1) below, and triplet energies of the first host material, the second host material, and the third host material T1(H1), T1(H2), and T1(H3) satisfy relationships of numerical formulae (Numerical Formula A2 and Numerical Formula A3) below,HOMO⁡(HT⁢1)>HOMO⁡(H⁢2)>H⁢O⁢M⁢O⁡(H⁢1)(Numerical⁢ Formula⁢ A⁢1)T1(H⁢1)>T1(H⁢3)(Numerical⁢ Formula⁢ A⁢2)T1(H⁢2)>T1(H⁢3).(Numerical⁢ Formula⁢ A⁢3)

The invention provides a trap level measurement method considering temperature rise rate thermal stimulation current, and belongs to the technical field of insulating materials. ET is calculated according to the change relation of the peak temperature Tm along with the heating rate beta. The TSDC curve often has overlapped peaks, the parameter of a single peak is difficult to accurately extract in the TSDC curve with a single heating rate, and the method of changing beta can effectively distinguish the peaks in different dynamic processes by tracking the change track of Tm of each peak along with beta, so that respective ET is calculated respectively. According to the method, the dependence on the current peak shape is remarkably reduced, the identification and analysis capability of overlapped peaks is improved, and whether the relaxation process has single activation energy or not can be judged, so that more reliable and more accurate characterization of the trap energy level is realized.

The invention discloses a method for realizing multi-channel excitation by using dual-wavelength to excite a dual-microwave field, and relates to a technical scheme of forming dual-wavelength excitation-dual-microwave expansion Rydberg atom working frequency points by combining dual-color optical frequency hopping and a microwave expansion frequency point method. The double-color light frequency hopping technology is used for selecting an initial working frequency point, and the excitation energy level corresponding to the single color light is further finely regulated, controlled and expanded through the double microwave fields. In other words, on a quantum state corresponding to a single color light excitation state, double microwaves interact with an atomic energy level to further generate a plurality of different microwave transition resonance states, so that a plurality of available sub-frequency points can be derived under each light frequency point, the rapid frequency point switching capability is improved, and the frequency point switching efficiency is improved. The problems of low frequency resource utilization rate, difficulty in frequency point switching and the like existing in a current Rydberg atom excitation scheme are solved.

This invention relates to the field of current measurement technology and discloses a method and system for improving the accuracy of NV center current measurement in diamond. The method includes: applying an axial magnetic field outside the diamond sample; comparing the energy level difference between two characteristic states with the target spin; determining whether energy level anti-crossing exists based on the comparison result; determining the fluorescence intensity based on the energy level anti-crossing; determining a normalized fluorescence signal based on the initial fluorescence signal and the target fluorescence signal; determining the coupling relationship between the magnetic field and fluorescence intensity based on the fluorescence intensity, the normalized fluorescence signal, and the placement probability; applying a bias magnetic field opposite to the axial magnetic field based on the open-loop transfer function and the microwave frequency; modulating the measurement microwave frequency with a sine wave; and measuring the NV center current based on the Fourier coefficients, the adjusted signal-to-noise ratio, and the bias magnetic field. This invention improves the accuracy of current measurement.

In a method for determining an energy level of a core / shell according to an example, a valence band energy level of a shell and a core-level energy level of a core in a core / shell nanoparticle are measured together, and by using a valence band energy level and a core-level of a core nanoparticle including only a core, a reliable energy level in a core / shell structure may be determined.

The invention provides a prediction method of molecular frontline orbit energy level and a related device, and relates to the technical field of chemistry. The prediction method for the molecular frontline orbit energy level can comprise the following steps: acquiring target information of a target molecule; wherein the target information comprises molecular structure information and a molecular descriptor; the molecular descriptors comprise a first molecular descriptor for predicting the highest occupied molecular orbital energy level and a second molecular descriptor for predicting the lowest unoccupied molecular orbital energy level; and inputting the target information into a pre-trained graph neural network model, and predicting the highest occupied molecular orbital energy level and the lowest unoccupied molecular orbital energy level of the target molecule through the graph neural network model. According to the technical scheme provided by the invention, the problem of low prediction efficiency of a scheme for predicting HOMO and LUMO energy level values through a DFT method in the prior art can be solved.

The application provides a multi-wavelength output double-circulation optical pumping Xe laser, which uses metastable Kr generated by gas discharge as an energy source, transmits energy by collision with ground state Xe to realize inversion in Xe system; meanwhile, uses two laser beams of 882nm and 828nm as pumping sources to maintain particle number inversion of Xe system and output multiple laser wavelengths. The application fully utilizes the effect of buffer gas Kr, realizes acceleration of collision relaxation process between energy levels and also plays a role in resonance energy transmission; the method effectively improves the utilization rate of Xe primary discharge particles, further improves the efficiency of optical pumping inert gas metastable state laser, and realizes primary electric pumping and multiple optical circulation.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a nitrogen-containing heterocyclic compound and an organic electroluminescent device thereof. According to the nitrogen-containing heterocyclic compound provided by the invention, through accurate design and coordinated regulation of a molecular structure, an energy barrier of electron transmission is effectively reduced, and efficient electron injection and transmission are realized, so that a device can achieve high brightness and high current efficiency under low driving voltage, and the power consumption of the device is reduced. The nitrogen-containing heterocyclic compound provided by the invention has a very good crystal structure and film form, and can prolong the service life and work stability of a device. Meanwhile, the nitrogen-containing heterocyclic compound provided by the invention also has proper HOMO energy level and LUMO energy level, can be well matched with an adjacent organic functional layer in energy level, can effectively reduce interface defects and charge recombination, and improves the overall photoelectric conversion efficiency and stability of a device.

To provide a light-emitting element with excellent luminous efficiency. [Solution] A light-emitting element having an anode, a cathode, and a first layer and a second layer provided between the anode and the cathode, wherein the first layer is a layer containing a fluorescent compound whose absolute difference between the energy level of the lowest triplet excited state and the energy level of the lowest singlet excited state is greater than 0.50 eV, and two or more types of compound T, and the second layer is a layer containing a crosslinked compound having a crosslinking group, wherein compound T is (i) a compound whose absolute difference between the energy level of the lowest triplet excited state and the energy level of the lowest singlet excited state is 0.25 eV or less, and / or (ii) a compound represented by formula (T-1), TIFF2026053955000081.tif20170

The invention provides a transfer learning prediction method and system for the residual life of a hydraulic system, and the method comprises the following steps: obtaining the measured hydraulic data of a field device and the full-life-cycle data of a test bench, and extracting the power spectrum density characteristics of the measured hydraulic data and the full-life-cycle data; and calculating a mapping conversion matrix by comparing spectrum features of a specific frequency window, aligning source domain features to a target domain, and generating a migration feature set. And in an evolution state space formed by fluid thermodynamic entropy increase and vibration energy level, constructing a standard degradation track by using the migration feature set. And mapping real-time data to the space, and deducing a time distance to a failure boundary in combination with a tropism weight of the real-time data to obtain a life prediction result. According to the method, the technical problem that a prediction model based on full-life data training is difficult to be directly applied to field equipment due to the difference between the laboratory working condition and the field actual working condition is solved.

A light emitting device in which: a) an absolute value of a lowest unoccupied molecular orbital (LUMO) energy level of a first electron transporting compound (ET-1) is smaller than an absolute value of a LUMO energy level of a host compound (H-1), b) an absolute value of a LUMO energy level of a second electron transporting compound (ET-2) is smaller than an absolute value of a LUMO energy level of a third electron transporting compound (ET-3), c) and an absolute value of a LUMO energy level of the second electron transporting compound (ET-2) is smaller than an absolute value of a LUMO energy level of the first electron transporting compound (ET-1).

A method and composition for enabling indirect photoexcitation whereby a large energy gap between energy levels in a second material is circumvented by a series of lower energy photoexcitations in a first material.

The invention discloses an insulating material dielectric strength evaluation method and system based on a trap level, belongs to the technical field of electrical equipment and electrical engineering, and is used for accurately evaluating the dielectric strength of an insulating material. The carrier mobility is calculated by collecting depolarization charge quantity attenuation curves of the insulating material after different polarization electric fields, the influence of the electric fields is corrected by adopting a Pole-Frenkel law, and trap level distribution of the insulating material under the different polarization electric fields is obtained. Through exponential decay function fitting, the influence of an electric field on a trap level is extrapolated to a higher electric field range, a corresponding limit trap level under a critical electric field is obtained, and a relation function with direct current breakdown field strength is established, so that the dielectric strength of the insulating material is accurately evaluated through the limit trap level.

The invention discloses an implementation method of a magnetic field-assisted electrostatic quadrupole trap for evaporative cooling. The implementation method comprises the following steps: S1, preparing CaF molecules on an X1 [sigma]-state hyperfine energy level; s2, preparing an electrostatic quadrupole trap by adopting a magnetic field-assisted electrostatic quadrupole trap device, enabling the device to generate a uniform magnetic field at the centers of coils through two electrified Helmholtz coils, and adjusting the magnetic field intensity through current; s3, CaF molecules are loaded in an electrostatic quadrupole trap, and the potential well depth is adjusted by adjusting the current in a Helmholtz electrified coil; and S4, after the molecules in the trap reach heat balance, reducing the depth of the potential trap, enabling the molecules with higher temperature to escape out of the trap, and realizing CaF molecule evaporative cooling through multiple times of heat balance. According to the invention, the current in the coil is changed, and the depth of the potential well is changed by cutting the well wall without changing the geometrical shape of the potential well, so that cold molecules with higher concentration are obtained finally.

The invention belongs to the technical field of electronic orbital analysis and calculation, and particularly relates to a method for calculating an electronic orbital and an energy state in atoms. The method comprises the following steps: firstly, constructing an electron kinetic equation, namely external force borne by electrons, electron mass, acceleration of the electrons, internal force of the electrons, and displacement representing an electron center position deviating from inertial motion, and finally obtaining an electron motion equation as shown in the specification; by solving the motion equation, orbits and energy levels of electrons in atoms, structures and energy states of molecules and physicochemical properties of semiconductor materials can be calculated. According to the method, hydrogen atoms are taken as an example, and the motion trail and the electron track of electrons in the hydrogen atoms are calculated and described. The method can be expanded to analysis and research of energy states of electrons in molecules or crystals or vacuum and physicochemical properties of materials.

The application relates to an insulating oil insulation aging state determination method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: constructing a single molecule model corresponding to a target molecule in a composition molecule of insulating oil by using a molecular simulation tool; acquiring an extreme electric field strength corresponding to the destruction of the single molecule model, and determining a test electric field strength interval according to the extreme electric field strength; acquiring a dipole moment, a polarizability, an orbital energy level and a state density corresponding to different test electric field strengths in the test electric field strength interval; determining a reaction site of the single molecule model under the extreme electric field strength according to the dipole moment, the polarizability, the orbital energy level and the state density; acquiring target infrared spectrum information corresponding to the reaction site of the single molecule model; and matching and comparing the target infrared spectrum information with infrared spectrum information of an insulating oil to be evaluated, so as to obtain an insulation aging state of the insulating oil to be evaluated. The method can improve the evaluation efficiency.

The application discloses a high-temperature non-equilibrium model three-atom gas thermal property calculation method and a database generation method, and first, according to the fact that the energy level distribution probability on the electronic, vibration and rotation modes respectively meets the Boltzmann distribution hypothesis, a high-temperature non-equilibrium gas model is established; then, according to the rule that the vibration and rotation energy is less than the minimum dissociation energy of a molecule, the vibration and rotation energy level range of the molecule is determined; finally, according to the high-temperature non-equilibrium gas model and the vibration energy level and rotation energy level range of the molecule, a non-equilibrium three-atom gas specific heat calculation formula containing a single temperature variable is derived. Based on the non-equilibrium three-atom gas specific heat calculation formula, combined with the piecewise linear interpolation and piecewise quadratic interpolation method, a high-temperature non-equilibrium three-atom gas thermal property database is constructed. The application can support the engineering application of three and four temperature models, and has important significance for the scientific research and engineering application in the field of high-temperature non-equilibrium calculation aerodynamics.

The invention provides an organic electroluminescent device, and relates to the technical field of organic electroluminescence. A hole transport region in the organic light-emitting device contains a compound represented by a general formula (1) and a compound represented by a general formula (2), the combination and HOMO energy levels of the two compounds are close, and the two compounds cooperate with each other, so that the energy levels of a hole transport layer and a light-emitting layer are matched, hole injection and transport are more facilitated, and the hole transport efficiency is improved. The organic light-emitting device can effectively reduce hole injection and transmission barriers, enables electrons and holes to be distributed in the light-emitting layer in a more balanced manner, effectively increases the combination probability of the holes and the electrons, and limits generated excitons in the light-emitting layer, thereby improving the light-emitting efficiency and service life of the organic light-emitting device, and improving the light-emitting efficiency of the organic light-emitting device. The organic light-emitting device provided by the invention has a good application effect and a good industrialization prospect.