18results about How to "High index" patented technology

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 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 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.

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.

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 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.

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 application discloses an assembly scene three-dimensional perception and positioning method based on a two-stage progressive fine-tuning, and relates to the technical field of robot visual perception and intelligent assembly. The method comprises the following steps: firstly, collecting an RGB-D image of an assembly scene; secondly, training a DINO target detection model by using a two-stage progressive fine-tuning strategy, realizing fast adaptation first and fine tuning later by unfreezing network layers in stages, and outputting a high-confidence part bounding box; then, combining a SAM large model to perform local pixel-level mask segmentation on the detection box, and extracting two-dimensional geometric features of the part; finally, combining depth information and hand-eye calibration parameters to map the two-dimensional features into three-dimensional coordinates and a rotation attitude in a robot base coordinate system. The application effectively improves the detection accuracy of small batches of parts with complex shapes and the robustness of three-dimensional positioning, has high single-frame processing efficiency, and provides accurate visual prior for flexible assembly of robots.

The invention discloses a notebook computer keyboard capable of realizing keyboard backlight through a single-layer circuit board, which comprises a single-layer metal reinforcing plate, a backlight keyboard main control chip and a plurality of groups of light-emitting control units are arranged on a signal circuit layer, and an insulating unit covers the signal circuit layer and is bonded on the metal reinforcing plate. A plurality of elastic piece switches are bonded on the insulating film through bonding units, each elastic piece switch is provided with a light-transmitting windowing part, a plurality of light-emitting diode chips corresponding to one elastic piece switch are arranged under the key, and each light-emitting diode chip displays backlight through the light-transmitting windowing part of the corresponding elastic piece switch. The keyboard solves the problems that a current notebook computer keyboard adopts a multi-layer circuit design, so that the process is complex, the manufacturing cost is high, meanwhile, in the design of a traditional backlight keyboard, a light-emitting diode needs to avoid a key mechanical structure and cannot be arranged under keys, and the keyboard is inconvenient to use. The backlight effect is not ideal or an additional lighting effect treatment process needs to be added.