32results about How to "High index" patented technology

The invention provides an RSVP type unbalanced electroencephalogram signal classification method based on a self-adaptive channel mixed attention mechanism and decoupling learning, and aims to improve the feature extraction and classification performance of RSVP electroencephalogram signals. Firstly, collected RSVP electroencephalogram signals are preprocessed, including common average reference, band-pass filtering and standardization processing, and a training set and a test set are divided; then, multi-scale time and space features are extracted through a parallel convolution layer and a space convolution layer, and the features of different levels are fused through an interpolation method; the training process is decoupled into representation learning and classifier learning, the representation learning uses a triple loss function based on difficult sample sampling, and the classifier learning uses the optimized Focal Loss to perform feature learning and classifier optimization. A self-adaptive channel mixed attention mechanism is introduced, and the flexibility and robustness of the model are enhanced through dynamic weighting and multi-level feature fusion. According to the method, the problem of class imbalance in the RSVP task is solved.

The invention discloses a broadband receiver ADC nonlinear spurious suppression method and device, and relates to the technical field of instruments and meters, and the method comprises the following steps: receiving an intermediate frequency signal, carrying out the analog-to-digital conversion of the intermediate frequency signal, and obtaining a digital intermediate frequency signal, the intermediate frequency signal being obtained through the receiving of a superheterodyne architecture; the method comprises the following steps: reducing the signal bandwidth of a digital intermediate frequency signal by using a CIC extraction mode to obtain different signal bandwidths BW, and performing spectral analysis on the different signal bandwidths BW by using a fixed-point FFT to obtain corresponding resolution bandwidths RBW; on the premise that the cost of the receiver is not increased, spurious signals under the narrow-band instantaneous bandwidth are reduced, and the index of the receiver is improved.

A charging bench includes three coils that partially overlap, in superposed planes. An electrical feed makes it possible to supply the coils with an AC current from the mains. A portable device to be charged is placed on the upper side of this charging bench. This device includes a winding intended to receive the electrical charging, and a ferrite protective screen. One of the coils (Bb) is selected to emit the magnetic charging flux toward the mobile phone. The selection is carried out via the emission of a series of pulses by at least one of the coils and comparison of return signals with a reference threshold. This comparison also enables one of the other coils (Ba, Bc) to be selected or both of these other two coils (Ba, Bc) to be used to receive a flux for communicating information originating from the portable device to be charged.

The invention discloses a photo-generated carrier transient transport plotting system and method with high time-space resolution, and the method comprises the steps: generating two beams of femtosecond laser by a femtosecond laser module, and respectively taking the two beams of femtosecond laser as pumping laser and detection laser; pump laser enters the microscopic module through the pump light frequency doubling module, the delay line module and the first chopping module. The pumping laser enters a first chopping module, the detection laser enters a detection light scanning module through a second chopping module, space scanning control is carried out on the detection laser, then the pumping laser and the detection laser roughly coincide at the microscopic module and then enter a sample photoelectric measurement base module, and the detection laser enters a signal acquisition module after being reflected by a sample. According to the invention, the transient transport process of the current carrier can be represented, the dynamic process of the current carrier can be clarified, key factors influencing the performance of the device can be analyzed, and theoretical and experimental guidance can be provided for the performance improvement of the photoelectric device.

The utility model relates to amine liquid purification, and provides a system for purifying amine liquid, which comprises an amine liquid supply system, a demineralized water supply system, an electrode water supply system, an electrodialyzer and a cleaning system, the amine liquid supply system, the demineralized water supply system, the electrode water supply system and the cleaning system are connected with the inlet end and the outlet end of the electrodialyzer at the same time. The system for purifying the amine liquid can efficiently purify the amine liquid, and after the amine liquid is purified, the index is higher, the loss is lower, and the cost is lower.

The invention provides a general bypass reconciliation and early warning system based on big data, which belongs to the technical field of information, adopts a layered architecture design and comprises a data acquisition layer, a data processing layer, an intelligent reconciliation layer, an early warning decision-making layer and a user interaction layer. All the layers carry out efficient data exchange and instruction transmission through standardized interfaces, it is ensured that all function modules of the system can work cooperatively, and automatic account checking and abnormal early warning of cross-system and cross-platform transaction data are achieved.

The invention relates to a material and a heat treatment method thereof, in particular to a high-strength and high-toughness alloy steel material and a heat treatment method thereof. The high-strength and high-toughness alloy steel material comprises the following components in percentage by mass: 0.14-0.17% of C, 0.5-0.6% of Si, less than or equal to 1.8% of Mn, less than or equal to 1.5% of Cr, less than or equal to 2.0% of Ni, less than or equal to 0.7% of Mo, less than or equal to 0.5% of Cu, less than or equal to 0.12% of V, 0.57-0.60% of Ceq and the balance of Fe and inevitable impurities. According to the high-strength and high-toughness alloy steel material and the heat treatment method thereof provided by the invention, the problems of insufficient material strength, hardness and low-temperature impact toughness of a core part in the prior art are solved.

This invention discloses an infrared narrow-band passband and wide-cutoff-band high-optical-density filter based on a CaF2 substrate. It comprises a front film system and a back film system designed on both sides of the CaF2 substrate, with each film system consisting of alternating deposits of Ge and ZnS. The front film system is: 0.762(0.5HL0.5H)^M1 + 1.246(0.5LH.5L)^M2; the back film system is: 0.56(0.5HL0.5H)^M3 + 0.39(0.5HL0.5H)^M4 + 0.28(0.5HL0.5H)^M5 + 0.2(0.5HL0.5H)^M6L. The resulting filter, when tested with a spectrometer, achieves a cutoff bandwidth of 1000nm-7100nm and 8500nm-20000nm, with an average cutoff optical density reaching OD4; the transmission band of 7669±120nm has an average transmittance of 98.85%, and a half-wavelength of 470nm±30nm.

The invention discloses a filler formula and production equipment. The filler formula comprises a component A and a component B, the component A is a main agent, and the component B is an adhesive; the mass ratio of the component A to the component B is (9: 0.5)-(9: 1.5); the component A is prepared from the following components in parts by mass: 1.5 to 2.5 parts of methyl cellulose, 1 to 2 parts of talcum powder, 18 to 24 parts of aluminum oxide powder, 5 to 7 parts of ceramic fiber, 0.5 to 1.5 parts of silicone oil, 50 to 65 parts of diluent and 0.1 to 0.3 part of visual agent; the component B comprises the following components in parts by mass: 8-13 parts of silica sol; after proportioning according to a formula, the device is used for injecting into a crack of a thermal insulation layer to fill and level up an original crack; in the using process of the furnace kiln, automatic drying and sintering are achieved, and the heat preservation effect is achieved.

The invention relates to the technical field of wastewater treatment, in particular to a salt precipitation optimization method and system for white carbon black wastewater containing sodium carbonate salt, and the method comprises the following steps: extracting white carbon black wastewater raw water to be treated to obtain the sodium carbonate concentration of the raw water; obtaining a first salt separation treatment parameter according to the sodium carbonate concentration of the raw water; starting the evaporation equipment and executing the first salt precipitation treatment parameter to treat the white carbon black wastewater to obtain a salt precipitation operation index; comparing the salting-out operation index with a target operation index to obtain an operation difference result; formulating a plurality of control strategies according to the operation difference result, and optimizing the plurality of control strategies based on a multi-objective optimization algorithm to obtain a salt precipitation optimization strategy; solving an optimal solution of the salt analysis optimization strategy to determine a second salt precipitation treatment parameter, and executing the second salt precipitation treatment parameter to perform salt precipitation treatment on the white carbon black wastewater; various indexes of wastewater treatment are improved by dynamically optimizing and controlling various control parameters of salting-out treatment, the salting-out process is stable, and pipelines are not prone to being blocked.

The tuberculosis infection T cell immune evaluation system comprises a microfluidic immune reactor, a pipettor, a detection antibody, a detection tracer SA-PolyHRP, a luminol chemiluminescence substrate, a chemiluminescence detection unit and a computer, the microfluidic immune reactor is coated with an interferon capture antibody, and the microfluidic immune reactor is coated with a chemiluminescence detection unit. The pipettor is used for sucking a blood sample, a detection antibody, a detection tracer SA-PolyHRP and a luminol chemiluminescent substrate into the microfluidic immune reactor; the chemiluminescence detection unit collects a chemiluminescence image signal and converts the chemiluminescence image signal into a quantitative value signal, and the quantitative value signal is converted into an equivalent standard interferon concentration through a standard curve so as to evaluate the T cell immune protection capability of the sample; according to the tuberculosis infection T cell immune evaluation system and evaluation method provided by the invention, through a high-sensitivity detection platform, the stimulation incubation in a trace blood sample can be realized, the incubation time can be shortened, and the clinical demand on the blood volume of a patient can be reduced, so that some special crowds can also perform IGRA detection, and the system and the method are rapid, flexible, stable and reliable.

Provided is a resin composition by which can be obtained a molded article that can maintain a high level of strength and in which an increase in a yellowness index (YI) value is suppressed, even when irradiated with ultraviolet light for a long period of time. Also provided is a molded article formed from the resin composition. The resin composition contains a polyamide resin and a triazine-based ultraviolet absorber. The polyamide resin contains a xylylenediamine-based polyamide resin containing diamine-derived structural units and dicarboxylic acid-derived structural units with 70 mol% or more of the diamine-derived structural units being derived from a xylylenediamine, and 70 mol% or more of the dicarboxylic acid-derived structural units being derived from an α,ω-linear aliphatic dicarboxylic acid having from 6 to 14 carbons. When in a state of a 10 mg / L chloroform solution, the triazine-based ultraviolet absorber has an absorbance at a wavelength of 290 nm of 0.50 or more, and the content of the triazine-based ultraviolet absorber is 0.50 mass% or more in relation to the total mass of the resin composition.

An object of the present invention is to provide a compound with a high refractive index at a wavelength in range of 450 nm to 750 nm in a capping layer to improve light extraction efficiency of an organic EL device. The present invention was achieved by focusing on the fact that a heterocyclic compound has excellent thin film stability and durability and is able improve the refractive index by adjusting the molecular structures, and planning molecule, and an organic EL device having excellent luminous efficiency was obtained by using this compound as a material for constituting a capping layer.

This invention relates to a method and system for enhancing low-light videos based on multi-scale spatiotemporal feature fusion, belonging to the field of computer vision technology. During the training phase, the low-light video is preprocessed according to its different data formats, separating different pixels into different channels using color filters. A low-light video enhancement algorithm generates an enhanced video from the input low-light video and compares it with a real normal-light video. The loss function is calculated, and the parameters in the algorithm model are updated through backpropagation. When a preset termination condition is reached, the model structure and the updated model parameters are saved. During the usage phase, a low-light video enhancement model is constructed based on the model structure and parameters saved during the training phase. The low-light video to be processed is then fed into the model for low-light enhancement. This invention can restore low-light videos to high-quality normal-light videos with excellent evaluation metrics and good subjective visual experience.

The invention provides a data sampling method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of data processing. The data sampling method comprises the steps that a sample data set is obtained, the sample data set comprises a first data set and a second data set, and the generation time of the second data set is later than that of the first data set; determining a tendency score of each piece of first sample data in the first data set; wherein the tendency score is used for representing the probability that the first sample data falls into the second data set; based on the tendency score of the first sample data, matching the first sample data with second sample data in the second data set; determining a first sampling weight of the first data set and a second sampling weight of each piece of first sample data in the first data set according to a matching result; and sampling target sample data from the sample data set based on the first sampling weight and the second sampling weight. According to the method, adaptive data sampling is realized, and the model index performance is effectively improved.

The application provides a large model fine-tuning method and device for a railway design intelligent agent tool call, the method comprising: constructing a supervised fine-tuning data set in the field of railway design; constructing a direct preference optimization data set based on the success and failure feedback of the large model intelligent agent call; using the constructed supervised fine-tuning data set and direct preference optimization data set to pre-train a large language model; using the supervised fine-tuning data set to perform single supervised fine-tuning on the pre-trained large language model to obtain a large language model after supervised fine-tuning; using the direct preference optimization data set to perform multi-round preference optimization fine-tuning with feedback on the large language model after supervised fine-tuning to obtain a large language model after optimization fine-tuning. By constructing high-quality data and fine-tuning the large language model, the application significantly reduces the risk of the large language model fabricating tools or misadjusting interfaces in complex design tasks, so that the intelligent agent has stable and controllable tool collaboration capability in the real railway design software environment.

An easy-print packaging sheet and a manufacturing method therefor. Raw materials of the easy-print packaging sheet contain polyethylene; the smoothness of the packaging sheet is 70-250 seconds; the drape coefficient of the packaging sheet is 78-92%; the burst index of the packaging sheet is 8-15 kPa·m2 / g; and the light shielding rate of the packaging sheet is 85-95%. The packaging sheet having good comprehensive performance is prepared by means of a flash spinning process and the improvement of raw materials and a spinning process.

A nucleic acid construct for improving an adeno-associated virus yield, and a construction method therefor. The nucleic acid construct comprises: an adeno-associated virus (AAV) element, and a polynucleotide encoding an IE protein. Said AAV element comprises a polynucleotide encoding a Cap protein, a polynucleotide encoding a Rep protein, and an AAV cis-regulatory element. The construction method comprises integrating an AAV element carrying an exogenous target gene and a polynucleotide that encodes the IE protein into to a baculovirus vector backbone. The obtained recombinant adeno-associated virus (rAAV) has a low empty capsid rate, while the rAAV yield of a single cell and a unit volume culture is increased, the production cost is reduced, and the production is easy to scale up.

The utility model discloses a hand hole well anti-collision device for a tunnel portal. The hand hole well anti-collision device comprises an installation assembly, an intelligent induction linkage system, a control system and a hand hole well. The installation assembly comprises a plurality of box bodies, plugs are arranged at the upper ends of the box bodies, slots are formed in the lower ends of the box bodies, and the plugs are inserted into the slots to connect the box bodies in an inserted mode. An intelligent induction linkage system is installed in the installation assembly and electrically connected with the control system. The intelligent induction linkage system comprises a sound control early warning module, a tunnel portal lane closing indicator light module, an indicator light early warning module, a vehicle impact energy evaluation module, a fire fighting automatic dialing alarm rescue module and a new energy photovoltaic power generation energy storage module. It can be guaranteed that the guardrail has enough anti-collision performance, the installation procedure is simple, an internal cable is protected after collision, early warning is given out in time, and the driving safety of a road is guaranteed.

The present disclosure relates to methods and systems for obtaining image information of an organism including a set of optical data, calculating a growth index based on the set of optical data, and calculating an anticipated harvest time based on the growth index, where the image information includes at least one of: (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and (b) a set of image data from at least two image capture devices, where the at least two image capture devices capture the set of image data from at least two positions.

The invention discloses butadiene-isoprene rubber as well as a preparation method and application thereof. The preparation method comprises the following steps: polymerizing a butadiene monomer and an isoprene monomer under a polymerization condition to obtain butadiene-isoprene rubber; wherein in the polymerization process, an initiator and a composite regulator are added, and the composite regulator comprises ethylenediamine tetraacetic acid salt and an asymmetric ether compound. Butadiene and isoprene are used as raw materials to prepare butadiene-isoprene rubber, ethylene diamine tetraacetic acid salt and asymmetric ether compounds are added in the polymerization process to serve as two-component composite regulators to synthesize solution polymerized butadiene-isoprene rubber with high 1, 2-structure content and high 3, 4-structure content, the total content of the 1, 2-structure and the 3, 4-structure in an obtained polymer is stable, and the solution polymerized butadiene-isoprene rubber has the advantages of being low in cost and good in stability. And the regulating capacity of the composite regulator is not easily influenced by the reaction temperature, the reaction is easy to control, various indexes of the product are improved, and the macroscopic comprehensive mechanical property of the polymer is excellent.

A problem is to provide a lubricating oil composition that is hard to increase in viscosity in the low temperature range, resulting in an excellent fuel saving capability, and is easy to increase in viscosity in the high temperature range, resulting in excellent wear resistance and excellent hydraulic characteristics and securing an oil film. The problem is solved by a lubricating oil composition containing a base oil (A) and a viscosity index improver (B), the base oil (A) containing a mineral oil (A1) and an oxygen-containing synthetic oil (A2), the viscosity index improver (B) containing a comb-shaped polymer (B1), the lubricating oil composition having a kinematic viscosity at 100°C of 9.3 mm2 / s or less, a viscosity index of 280 or more, and a content Y (unit: % by mass) of the oxygen-containing synthetic oil (A2) based on the total amount of the lubricating oil composition satisfying the following expression (1): a ≤ Y < -3.7ln(X)+β (1) wherein in the expression (1), a = 0.5, β = 19, and X represents a ratio (C / O) of the number of carbon atoms and the number of oxygen atoms per one molecule of the oxygen-containing synthetic oil (A2).

The application discloses an industrial wastewater treatment process modeling and decision control integrated method and system, and the method comprises the following steps: (1) based on the analysis of reaction mechanism under the conservation of mass and multiphase coexistence and the analysis of reactor structure, an industrial wastewater treatment process model of multi-reactor cascade is constructed; (2) a hierarchical optimization control strategy is adopted to separate and control the target components of the industrial wastewater treatment process, namely: the upper layer determines the process control target according to the requirements and economic indexes of the industrial wastewater treatment process; the lower layer adopts a model predictive control method, obtains the control input sequence of the industrial wastewater treatment process based on the determined process control target, and issues the optimal control input to act on the industrial wastewater treatment process. The application can be applied to the control of the industrial wastewater treatment process, and can significantly improve the control precision and process indexes.

The invention relates to the technical field of iron ore smelting, and provides a hot refining furnace for producing medium-low carbon chromite, which comprises a first platform, a second platform, a furnace tilting device, a furnace body, a full-dry low smoke hood, an electrode lifting device, a conductive cross arm, a waste heat utilization device, a transformer, a hydraulic system, a water cooling system and the like, the full-dry type low smoke hood is arranged on the furnace body and seals the upper end of the furnace body, and a furnace hood protection mechanism is fixedly installed at the upper end of the first platform. The full-dry-type low smoke hood is innovatively designed and is of a full-dry-type water-free structure, compared with a traditional water-cooling low smoke hood, the full-dry-type low smoke hood is simple in structure, manufacturing and maintenance cost is saved, the inner smoke hood coaxially arranged with the full-dry-type low smoke hood in a sleeving mode protects the inner wall of the full-dry-type low smoke hood, slag which is not prone to being removed is prevented from occurring on the inner wall of a furnace body, and the service life of the furnace body is prolonged. And the electrode is limited through the full-dry low smoke hood and the inner smoke hood at the same time, so that the problem that the electrode is inclined and broken during lifting adjustment above the furnace body is solved.

A problem is to provide a polymer composition that can impart a high viscosity index to a lubricating oil composition, and has a low HTHS viscosity at 80°C, which is the effective temperature range. The problem is solved by a polymer composition containing a comb-shaped polymer (X) containing the following structural units (a) to (c), and a hetero atom-containing base oil (Y), the structural unit (a): a structural unit derived from a short-chain alkyl (meth)acrylate (A) having a short-chain alkyl group having 1 to 5 carbon atoms, the structural unit (b): a structural unit derived from a long-chain alkyl (meth)acrylate (B) having a long-chain alkyl group having 6 to 32 carbon atoms, and the structural unit (c): a structural unit derived from a macromonomer (C), a content of the structural unit (a) being 70% by mass or more based on the total structural units of the comb-shaped polymer (X), the hetero atom-containing base oil (Y) having a kinematic viscosity at 40°C of 25 mm2 / s or less.

The invention relates to a high temperature resistant and anti-aging injection molding material and a preparation method and application thereof, belonging to the technical field of polymer materials. The raw material components of the injection molding material include polycarbonate, 5-phenyltetrazolyl, isooctyl thioglycolate, high silica glass fiber, extreme pressure polyurea grease, an anti-deformation modifier and coral powder; wherein the polycarbonate, high silica glass fiber and coral powder are used to prepare a master batch; the master batch and other components are uniformly and stably foamed and molded by an injection molding machine, and the obtained product solves the product deformation and shrinkage caused by large wall thickness, effectively ensures the dimensional stability; and can have good high temperature resistance and crack resistance; demoulding is smooth, and fracture during demoulding is effectively prevented, and is suitable for lamp holder products with complex structures.

The present application discloses an electric vehicle charging and discharging control method, device, equipment and storage medium, which relates to the field of electric vehicle charging and discharging technology, and can improve the flexibility of the power grid while meeting the charging needs of electric vehicles. The scheme includes: obtaining the reported information of electric vehicles in charging stations in each time period of the previous day, and the reported information includes: the time information of the electric vehicle connected to the power grid, the battery parameters of the power battery in the electric vehicle, and the battery charging information; according to the reported information and the preset constraints, determining the adjustable power range of each charging station in each time period of the previous day; according to the adjustable power range of each time period of the previous day and the preset power grid flexibility determination algorithm, determining the allocated power of each charging station in each time period of the day; according to the allocated power in each time period of the day, determining the allocated power of each electric vehicle in each charging station in each time period.

The application discloses a kind of high top pressure and the regulation and control method of fixed pressure difference of blast furnace, comprising the following operating steps: S1: before implementing high top pressure, confirm that blast furnace system is stable and proceeds in order;Blast furnace fan air release line is adjusted to 30kpa~40kpa;S2: the blast furnace belongs to the blast furnace of control edge open center operation, after improving top pressure, the edge coke ring of blast furnace coke distribution reduces a ring, after adjustment, if the furnace condition reaction still tends to edge airflow development, then the ore coke angle is simultaneously increased 0.2°~0.3°;The blast furnace belongs to the blast furnace of balance two airflow operations, after improving top pressure, the edge coke ring of blast furnace coke distribution reduces a ring;After adjustment, if the furnace condition reaction still tends to edge airflow development, then the edge ore ring is increased a ring, center coke ring number: increase 0.2~0.5 rings.This method can smoothly transition to high top pressure production state, strengthen smelting process, improve blast furnace index.

The invention relates to novel conjugates consisting of a cell-binding agent and a cytotoxic agent, wherein the cell-binding agent (CBA) is covalently linked to the cytotoxic agent via a modified Cys, such as a Cys modified at the ch3 domain of the heavy chain, at a position corresponding to position 442 in the EU numbering system and / or (or C442) on an antibody-type CBA. The invention also relates to methods for preparing the conjugates of the present invention. Furthermore, the invention relates to a composition and methods for inhibiting abnormal cell growth or treating a proliferative disorder in mammals using the conjugates of the invention.

The invention provides an unclassified feature memory module based on information similarity. According to the module, feature representation is enhanced by utilizing non-category memory and a non-category memory attention enhancement mechanism, the module does not depend on specific category information of a data set, and the model can still keep good performance when facing new data. A network integrating the module can be used for various downstream tasks, such as classification, target detection, segmentation and the like. A comprehensive experiment shows that when the module is added into the most advanced neural network model, indexes such as classification accuracy and F1-scores on a medical data set and other general data sets are greatly improved.