92results about How to "Reduce probability" patented technology

The present invention provides a test device for shield cutterhead mud cakes taking into account high temperature and high pressure. A double-layer cylindrical test cylinder is sealed at the bottom by a cylindrical cylinder bottom cover (4). The top of the double-layer cylindrical test cylinder is open. A cylindrical inner cylinder top cover (3) is movably arranged at the top opening. An electric-controlled jack (5) for applying vertical pressure is connected to the upper surface of the cylindrical inner cylinder top cover (3). A plurality of electrically controllable heating rods (13), a plurality of unconfined compressive strength sample molds (11) and a plurality of direct shear sample molds (12) are arranged inside the double-layer cylindrical test cylinder. The present invention also discloses a test method for shield cutterhead mud cakes taking into account high temperature and high pressure. The present invention can study the mechanism or conditions of cutterhead mud cakes under the action of high temperature and high pressure, which is more consistent with the actual situation and avoids the operation of injecting a dispersant to decompose the mud cakes after the mud cakes are formed in shield practice.

Provided is a convenient, rapid, and objective blood test-based risk evaluation method for the diagnosis of TIA that can complement the clinical symptom interview, and provided is a convenient, rapid, and objective blood test-based risk evaluation method for the differential diagnosis of cardiogenic and non-cardiogenic acute cerebral vascular diseases such as cerebral infarction and TIA that can complement imaging, electrocardiogram, and conventional blood tests. The concentration of soluble CLEC2 is measured in the blood collected from a patient.

The invention relates to the technical field of artificial intelligence, in particular to a voice braking method, which allows a user to customize a braking triggering sound according to personal preference and driving habits, the voice can be a clear voice instruction or a specific voice feature, such as scream or shouting, so that the flexibility and applicability of the method are improved; sound features in emergency situations such as screaming and shouting are deeply analyzed, and a more accurate sound feature model is established; therefore, the method can quickly respond when a driver or a passenger makes an emergency sound characteristic, the emergency braking response time is shortened, the probability and severity of accidents are reduced, and the problem that in the prior art, an emergency braking mode mainly depends on a physical sensor and the operation behavior of the driver, and the safety is poor can be effectively solved. The technical problems that the potential information source, namely the sound characteristics of people in the vehicle, is not fully utilized for braking, so that the information source is limited, and the emergency braking response is lagged are solved.

The invention discloses a photovoltaic power station fault detection method and system based on big data and a storage medium, and relates to the technical field of photovoltaic power station fault detection. Through communication connection with various sensors, electric power parameters and environmental parameters of each substring are collected, deep analysis is carried out on data according to the technical means of Fourier transform, trend change analysis and the like, and key indexes of harmonic distortion, a conversion monitoring value and a resistance monitoring value are extracted as three judgment elements; comprehensive analysis is carried out based on the three judgment elements, substrings with faults are recognized, and corresponding security strategies are executed accordingly; intelligent monitoring and preventive maintenance of the photovoltaic power station are realized, preventive measures can be taken before a fault occurs, the fault occurrence probability and the influence range are reduced, the service life of equipment is prolonged, and the overall operation efficiency is improved.

The utility model discloses a current sampling circuit for a QM chip of an electronic parking brake system, and the circuit comprises a driving chip which comprises a driving module and a current collection module; the driving chip is connected with an H-bridge circuit through a driving module, the middle of the H-bridge circuit is connected with a caliper motor, the driving chip is connected with a first sampling circuit and a first first-order filter circuit through a sampling module, the H-bridge circuit is connected with a monitoring circuit, and the monitoring circuit comprises a second sampling circuit, a second first-order filter circuit and a monitoring circuit control circuit. According to the utility model, a current acquisition function of an ASIL-B level is realized by using the QM driving chip with a low safety level, the requirements of a new energy automobile and an automatic driving automobile are met, the reliability and the stability of a parking system are improved, and the fault occurrence probability and the manufacturing cost of the parking system are effectively reduced.

Provided are a battery cell, a battery, an electrical apparatus, and a method and device for manufacturing a battery cell. The battery cell includes a case (110), an end cover (120), an electrode assembly (130) and a solder (140), the case (110) has an accommodating cavity (111) and an opening at one end; the end cover (120) is connected to the case (110); the electrode assembly (130) is provided in the accommodating cavity (111), the electrode assembly (130) has a first tab (131), and the first tab (131) faces the opening; the solder (140) is provided between the end cover (120) and the first tab (131) and connects the end cover (120) and the first tab (131); an insulating member (150) is also provided between the end cover (120) and the first tab (131), an insulating cavity (151) is provided on the insulating member (150), a feed port (152) is provided on one side of the insulating cavity (151), and the feed port (152) faces the solder (140).

This invention relates to the field of flue gas treatment technology, specifically to a sulfur dioxide gas absorbent, comprising the following raw materials by weight: 90-100 parts of an aqueous amine solution and 2-6 parts of additives. In this invention, the nitrogen-zinc ion-sulfur active center of the catalyst acts as a molecular key, efficiently and reversibly coordinating and activating sulfur dioxide molecules, significantly reducing the reaction energy barrier and fundamentally improving the intrinsic absorption rate. The enhancer, with its high specific surface area, provides a large interface for the reaction. Its surface sulfonic acid groups not only buffer the decrease in system pH, maintaining the optimal acid-base environment for the reaction, but also catalyze the conversion of absorption intermediates into more stable products, thereby shifting the reaction equilibrium to the right. Under the combined effect of these two factors, the catalyst accelerates the reaction towards equilibrium, while the enhancer continuously shifts the equilibrium point, resulting in a higher absorption capacity for the absorbent.

This application relates to a protection method for a secondary battery, the secondary battery including an injection opening. The method includes: step (1): evacuating the secondary battery through the injection opening to within 100 kPa, optionally to within 100 Pa; step (2): introducing a first reactant into the secondary battery through the injection opening until the pressure rises by more than 1 Pa, optionally more than 1 kPa, and maintaining the pressure for more than 1 ms, optionally for 0.1s-600s; and optionally, step (3): evacuating the secondary battery through the injection opening to within 100 kPa, optionally to within 100 Pa; and step (4): introducing a second reactant into the secondary battery through the injection opening until the pressure rises by more than 1 Pa, optionally more than 1 kPa, and maintaining the pressure for more than 1 ms, optionally for 0.1s-600s, thereby forming a protection layer on internal surface of the secondary battery. This application also relates to a protection device for a secondary battery, a secondary battery, a battery module, a battery pack, and an electric apparatus.

The present disclosure relates to a pharmaceutical composition for preventing or treating triple-negative breast cancer, comprising an oligonucleotide as an active ingredient.

An automatic cleaning device control method, an automatic cleaning device control apparatus, a computer-readable storage medium and an electronic device (2800). The control method comprises: when an automatic cleaning device is performing cleaning, acquiring first data according to the current walking wheel state data of the automatic cleaning device, and acquiring second data according to the current machine body state data of the automatic cleaning device (S2010); according to the first data and the second data, determining whether the automatic cleaning device is trapped (S2020); and if the automatic cleaning device is trapped, controlling the automatic cleaning device to enter an accelerated escape mode (S2030). The jamming probability of an automatic cleaning device can thus be reduced.

Provided are traffic detection method, traffic detection apparatus, a device and a readable storage medium. In the solution, for the communication traffic between the target host and the devices, the path-sharing traffic in the communication traffic is grouped based on the preset time interval, so that the traffic groups for different transmission time periods are obtained. Then, the statistics is performed on the feature set of traffic transmission in each of the traffic groups. Finally, it is determined whether the path-sharing traffic is abnormal based on a statistical result of identical ones of the feature sets of traffic transmission. The communication traffic between the target host and the devices is detected, so that the comprehensiveness of the detection is improved. In addition, authentic transmission of the communication traffic can be detected. Therefore, a rate of mistaken determination is reduced, and the accuracy in detecting malicious traffic is improved.

The application provides a multi-section shield propulsion risk visualization monitoring method and system, which comprises the following steps: dividing a project into different sections, dividing each section into work points, setting basic information of each work point and corresponding shield machine information for each work point in each section, adding corresponding risk point information for each work point in each section, uploading monitoring results of each work point in each section, associating each work point in each section with corresponding GIS, BIM model and KML drawing, configuring a corresponding view with adjustable model display effect for each work point in each section according to the associated GIS, BIM model and KML drawing of the work point, and displaying the risk. The application has the advantages of supporting multiple projects, multiple sections, visualization, automation, view control, result management and the like, and can improve the efficiency and effect of shield propulsion risk management.

This application relates to a liquid leak detection method and apparatus, a battery control unit, and a battery management system. The method includes: obtaining a gas concentration detection signal output separately by a plurality of target gas sensors in a battery box, where the gas concentration detection signal is used for indicating a measured gas concentration; obtaining position information of each target gas sensor in the battery box; and determining a leaking region in the battery box based on the gas concentration detection signal and the position information of each target gas sensor. To sum up, in an embodiment of this application, the leaking region in the battery box can be located by analyzing the gas concentration detection signals and position information of a plurality of target gas sensors in the battery box, so that prompt information used for indicating the leaking region can be output subsequently. In this way, maintenance personnel or a user of a vehicle containing the battery box can quickly and accurately locate the leaking region and take corresponding measures, thereby improving maintenance efficiency.

This application discloses a communication method and a communication apparatus. The method includes: A terminal device obtains first subgroup configuration information corresponding to a first PLMN, and receives paging from a first cell based on the first subgroup configuration information. The first PLMN is a PLMN associated with the terminal device, the first PLMN belongs to a PLMN set, and the PLMN set is associated with the first cell. Subgroup configuration information may be considered as configuration information for grouping terminal devices, and a terminal device may determine, based on the subgroup configuration information, a terminal device group to which the terminal device belongs. According to the method, different PLMNs may have corresponding subgroup configuration information, so that terminal device groups controlled by a plurality of core network devices can be distinguished. Even if subgroup IDs allocated by different core network devices associated with the first cell to terminal devices are the same, subgroup IDs actually used by the different core network devices to initiate paging through an access network device are different. Therefore, a probability of causing a paging false alarm can be reduced.

A multifunctional rainwater garden system for urban inland inundation treatment comprises a rainwater garden, an ecological pool and an underground water storage tank. The rainwater garden is arranged along the hardened ground, the ecological pool is arranged at the low-lying position of the inner side of the rainwater garden, a clear water tank of the underground water storage tank is connected with the ecological pool through a perforated pipe at the bottom, filtered rainwater is collected through the perforated pipe, and a rainwater tank of the underground water storage tank is connected with the ecological pool through an overflow grating and a pipeline on the bank. Overflowed rainwater is collected through the overflow pipe. According to the system, the rainwater infiltration speed and infiltration amount can be increased, the rainwater quality is preliminarily purified, the purified rainwater is collected for simple life use and flower and tree irrigation, the rainwater utilization rate is increased, rainfall flood regulation and storage and rainwater drainage are integrated, the drainage pressure of urban pipelines is relieved, and the risk and probability of urban inland inundation are reduced.

The utility model relates to the technical field of computer equipment, and discloses a notebook computer, which comprises a host; the display is arranged on the host and comprises a front frame, a rear shell, an easy-to-pull adhesive layer and a display module, the display module is arranged in an installation space defined by the front frame and the rear shell, the front frame and the display module are connected through the easy-to-pull adhesive layer, and the front frame and the rear shell are connected through the easy-to-pull adhesive layer; the easy-to-pull adhesive layer comprises a plurality of easy-to-pull adhesive bodies and detachable handles in one-to-one correspondence with the easy-to-pull adhesive bodies, the detachable handles protrude out of the edges of the corresponding easy-to-pull adhesive bodies, a plurality of grooves for containing parts of the detachable handles are formed in the rear shell, and detachable holes are formed in the positions, corresponding to the grooves, of the front face frame. Due to the fact that the easy-to-pull glue is free of base materials and is pure glue, the easy-to-pull glue has the advantages of being stretchable, elastic, free of residues and the like, after the displayer is disassembled, no easy-to-pull glue residues exist on the rear shell, the display module and the front face frame, and the situation that the easy-to-pull glue is damaged or residues exist is avoided.

A negative electrode plate is provided, including a current collector, a first active substance layer, and a second active substance layer located between the current collector and the first active substance layer, where the first active substance layer includes first silicon-based material particles, and the second active substance layer includes second silicon-based material particles, a mass percentage of lithium in the first silicon-based material particles being A% and a mass percentage of lithium in the second silicon-based material particles being B%, where A>B. An electrochemical apparatus is provided, including the negative electrode plate. An electronic apparatus is further provided, including the electrochemical apparatus. This application easies the swelling on the current collector of the silicon material in the negative electrode plate, thereby relieving swelling stress of the electrode plate and avoiding interface problems caused by deformation of the current collector, and thus film shedding of the electrode plate and deformation of the electrode assembly after cycling are suppressed and cycling swelling is relieved, achieving the effect of increasing energy density, improving cycling performance, and reducing the effect of swelling during cycling.

The invention relates to the technical field of power management, in particular to a power monitoring management method and system for cell transformation. The method comprises the following steps: acquiring infrastructure data of a community power system through a remote terminal unit and intelligent electronic equipment, wherein the infrastructure data comprises the model, layout, service life and maintenance record of existing power equipment; analyzing weak links and potential risk points of the power system on the infrastructure data to obtain power risk assessment data; performing power load simulation according to the infrastructure data and the power risk assessment data by using a power distribution automation system, and mapping power supply states and efficiencies under different conditions so as to obtain power system characteristic diagram data; and performing simulation analysis on the electric energy quality in different power supply states according to the electric power system characteristic diagram data so as to obtain electric energy quality simulation data. According to the invention, the power load is monitored and optimized in real time, so that the stability and reliability of power supply are improved.

The present application relates to the technical field of multimedia, and provides a video pushing method, a video pushing device and a storage medium. The video pushing method includes obtaining audio-video information of a multimedia file played on a display interface; performing scene recognition on the audio-video information through a preset scene recognition model to obtain a scene recognition result; and determining a video pushing category according to the scene recognition result, and pushing a video according to the video pushing category.

The utility model discloses an electromagnetic valve for removing burrs of a cross hole of a valve sleeve, and relates to the technical field of electromagnetic valves, the electromagnetic valve comprises a plug, a plug-in, a spring, a valve core, the valve sleeve, an ejector rod, an inner hole and the cross hole, the plug-in is arranged in the plug, an enamelled wire is arranged on the right side of the plug, a magnetic shield is arranged on the inner side of the enamelled wire, an armature is arranged in the magnetic shield, and the armature is arranged in the valve sleeve. An ejector rod is mounted in the middle of the armature, a stainless steel gasket sleeving the ejector rod is arranged on the right side surface of the armature, and a front yoke is mounted on the right side of the stainless steel gasket. According to the electromagnetic valve capable of removing the burrs of the cross hole of the valve sleeve, the inner hole and the cross hole are machined separately, the scheme of injection molding of the inner hole of the valve sleeve is added before drilling machining of the cross hole, the inner hole is filled with high-strength PPS engineering plastic in the drilling machining process, and the probability that the burrs are generated at the intersecting line position of the inner hole in the hole breaking machining process is eliminated in the drilling machining process; a good processing material is provided for subsequent processing; the injection molding mold is suitable for batch operation of products.

The invention discloses pipe bending equipment and a pipe bending method for a short-tail linear section pipe fitting. The pipe bending equipment comprises a rack and a feeding pushing device arranged on the rack, the feeding pushing device comprises a feeding trolley, a push rod device and a core rod device, and a material clamp is arranged on the feeding trolley; the push rod device comprises a push rod driving mechanism arranged on the feeding trolley and a push rod connected with the push rod driving mechanism, the push rod penetrates into the material clamp, and the push rod driving mechanism drives the push rod to move in the axial direction of the push rod. The end, away from the push rod driving mechanism, of the push rod can penetrate out of the front end of the clamp. A thrust limiting mechanism is arranged between the push rod and the material clamp; the core rod device comprises a core rod driving piece and a core rod connected with the core rod driving piece, and the core rod penetrates through the push rod. Through boosting of the push rod, the tail end of the pipe fitting is prevented from forming an inclined opening, so that the process of cutting off the inclined opening is omitted, the process complexity is reduced, the production efficiency is improved, and the waste of raw materials is reduced.

The present application relates to the technical field of coal mine underground mining safety, and proposes a thick hard rock stratum anti-burst monitoring and supporting method, the steps of which include: implementing regional rock burst monitoring and local rock burst monitoring on the mining area, the regional monitoring uses a microseismic monitoring system to make the mining area covered by at least five monitoring points with a maximum distance between adjacent monitoring points not greater than 500 meters, and the local monitoring includes coal body stress monitoring and roadway displacement monitoring; according to the monitoring results, pre-decompression boreholes are implemented on the mining face and the excavation face; when the impact danger is monitored, large-diameter borehole danger relief or blasting danger relief is implemented; the effect of the danger relief measures is tested by using the microseismic monitoring method, the drilling cuttings method and the stress online monitoring method; and reinforced support is implemented in the roadway and the mining intensity of the mining face is limited. The present application effectively reduces the occurrence probability and harm degree of rock burst under the condition of thick hard rock stratum, and ensures the safety production of the mining face.

The invention provides a communication system signal accurate scheduling method and device. The method comprises the steps that configuration parameters including a load indication coding sequence, exclusive orthogonal resource configuration and time sequence relation parameters are determined; based on the configuration parameters, when the terminal has to-be-transmitted data, determining a target load size according to a pre-configured load size value set, generating a corresponding load indication signal, and sending the load indication signal through an orthogonal resource allocated to the load indication signal; the network side receives and analyzes the load indication signal to obtain a target load size, and generates and issues uplink precise authorization containing matched transmission resource parameters according to the target load size; and the terminal executes uplink data transmission according to the authorization. According to the invention, through a mechanism of'short load indication + precise authorization ', a multi-round signaling interaction and base station first decoding process in traditional dynamic scheduling is eliminated, the power consumption and transmission delay of the terminal are remarkably reduced, the uplink resource utilization rate is improved, and the method is particularly suitable for low-power-consumption and low-delay scenes such as the Internet of Things and industrial control.

The present application provides a current collector plate and a battery. The current collector plate has a jellyroll connection portion and a pole connection portion, wherein the jellyroll connection portion is provided to be connected to the jellyroll of the battery; the pole connection portion is provided to be connected to a pole of the battery; the current collector plate is provided with a dividing groove and at least one connecting bridge provided in the dividing groove; the connecting bridge connects the jellyroll connection portion and the pole connection portion, wherein the connecting bridge is provided to be fused to disconnect the jellyroll connection portion and the pole connection portion when a thermal runaway of the battery occurs. When the thermal runaway occurs in the battery, the collector plate can not only timely cut off the connection between the pole post and the roll core, but also facilitate the exhaust of the gas generated by the thermal runaway, so as to better reduce the probability of fire or explosion of the battery.

The present application provides an appearance detection method and apparatus for a bare cell, a computer device, a computer-readable storage medium, a computer program product, and an appearance detection system for a bare cell, where the method includes: obtaining a cell picture of the bare cell by shooting, the cell picture being obtained by shooting in alignment with positions of tabs on an edge of the bare cell; determining a detection object in the cell picture; and performing appearance detection based on the detection object to obtain detection result information. The cell picture is obtained by shooting in alignment with the positions of the tabs on the edge of the bare cell, such that imaging of cell edges is parallel light reflection imaging, which reduces an impact of a thickness of the cell on the edge authenticity of the tabs of the cell, and ensures the accuracy of image acquisition, thereby improving the accuracy of appearance detection of the bare cell.

A feature vector dimension compression method and apparatus, and a device and a medium. The method comprises: acquiring a training sample; training a pre-built classification model by using the training sample, so as to obtain a false positive sample and a positive sample; respectively determining a first important feature dimension of the false positive sample and a second important feature dimension of the positive sample; and determining a dimension-compressed training sample by using the first important feature dimension, the second important feature dimension and the training sample. Therefore, redundant features can be deleted, such that the processing speed of feature vectors is increased. In addition, after an interference feature is deleted, a classification model is trained by using a compressed feature vector, such that the false positive probability of the classification model can be reduced and the importance of a key feature can be improved, thereby improving the sensitivity of the classification model to a black sample and improving the detection rate of malicious files by the classification model.

The molded body according to an embodiment of the present invention includes a composition containing a glycolic acid polymer, a plasticizer, and a degradation accelerator. An absolute value of a difference between a Fedors solubility parameter of the plasticizer and a Fedors solubility parameter of the glycolic acid polymer is 6 (J / cm3)1 / 2 or less. A content of the plasticizer in the composition is 10 mass% or greater and 50 mass% or less.

Provided are a universal T cell (CNK-UT) and an application thereof. The CNK-UT has the broad-spectrum ability to recognize and kill tumor cells and virus-infected cells.