23results about How to "Reduce chance" patented technology

The invention provides an adversarial sample generation method and device based on multi-feature saliency map fusion, and aims to generate an adversarial sample with relatively high quality. The method comprises the steps of obtaining multiple pieces of sample data, dividing the multiple pieces of sample data into a training set, a test set and a verification set, and selecting optimal model parameters through the training set, the verification set and the test set; inputting any original sample into an artificial intelligence model, respectively obtaining a first feature saliency map and a second feature saliency map based on an interpretability method of gradient and disturbance, and carrying out fusion enhancement on the first feature saliency map and the second feature saliency map to obtain an enhanced feature saliency map; performing truncation and normalization processing on the enhanced feature saliency map to obtain a processed enhanced feature saliency map; based on a global gradient attack algorithm, obtaining global adversarial disturbance of the original sample; performing superposition processing on the global adversarial disturbance and the processed enhanced feature saliency map to obtain local adversarial disturbance of the original sample; and adding the local adversarial disturbance to the original sample to generate an adversarial sample.

This disclosure provides a light-emitting diode and its fabrication method, belonging to the field of light-emitting devices. The light-emitting diode includes: an epitaxial layer; the epitaxial layer includes an N-type semiconductor layer, a multiple quantum well layer, an electron blocking layer, and a P-type semiconductor layer stacked sequentially; the multiple quantum well layer includes multiple stacked light-emitting units, each light-emitting unit including a stacked first quantum well sublayer, a quantum barrier layer, and a second quantum well sublayer; the thickness of the first quantum well sublayer is less than the thickness of the second quantum well sublayer, the thickness of the quantum barrier layer is less than the thickness of the first quantum well sublayer, and the In content in the first quantum well sublayer is greater than the In content in the second quantum well sublayer.

A peripheral nerve stimulation system, comprising an percutaneous implanted lead (10), an adapter (20), a first cable (30), a stimulator (50) and a surface electrode, wherein the percutaneous implanted lead (10) can be inserted into the body of a patient through skin, and the percutaneous implanted lead (10) comprises a distal lead head (11) and a lead body (12) from a distal end to a proximal end, the distal lead head (11) comprising at least one electrode, the lead body (12) being formed by spirally winding at least one conductor wire (121), and the conductor wire (121) comprising a metal wire (122) and an insulating layer (123), which is arranged outside the metal wire (122) in a wrapping manner, such that the lead body (12) is of an open insulating spiral structure; the adapter (20) is electrically connected to the proximal end of the percutaneous implanted lead (10), the adapter (20) is electrically connected to the stimulator (50) by means of the first cable (30), and the stimulator (50) is used for sending an electrical stimulation pulse; and the surface electrode can be directly connected to the stimulator (50) or connected to the stimulator (50) by means of a second cable (72), and forms a stimulation loop together with the percutaneous implanted lead (10). By means of the peripheral nerve stimulation system, pain can be effectively suppressed, thereby improving the clinical treatment effect.

Provided is a printhead comprising an internal microfluidic channel, comprising a print base and a printhead die. The print base comprises a liquid inflow channel (100), a liquid outflow channel (200) and a storage slot (300); the liquid inflow channel (100) and the liquid outflow channel (200) are communicated with the storage slot (300); the printhead die (500) is packaged on the surface of the print base, the printhead die (500) is communicated with the storage slot (300) to form an internal microfluidic channel, and the accommodating space of the internal microfluidic channel is equal to a one-time filling amount of print liquid of the printhead. By means of the internal microfluidic channel, the printhead enables the old print liquid to be pushed out at one time, such that the probability that the print liquid is polluted is greatly reduced, and the problem that it is difficult to discharge the print liquid is solved; the internal microfluidic channel having a small accommodation space is provided, such that use cost of the print liquid is greatly saved; a one-way flow path is formed between the liquid inflow channel having a small cross-sectional area and the liquid outflow channel, and due to large pressure in the one-way flow path, the flow speed is high, such that the liquid discharging rate can be increased.

An elevator system (2, 102) comprises an elevator car (4, 104), a tag detection device (16, 116) arranged to detect the presence of tags (18, 20; 118, 120) in the elevator car (4, 104) and a control system (13). The control system (13) is arranged to determine if the tag detection device (16, 116) detects at least one of a set of associated tags (18, 20; 118, 120) present in the elevator car (4, 104) and, if at least one of the set of associated tags (18, 20; 118, 120) is detected in the elevator car (4, 104), to prevent at least one travel operation of the elevator car (4, 104) until all or none of the set of associated tags (18, 20; 118, 120) is detected to be present in the elevator car (4, 104).

The utility model discloses a cable protection sleeve extrusion test tool, which comprises a test board and a moving assembly, the top surface of the test board is fixedly provided with a bearing plate, the side surface of the bearing plate is fixedly provided with an electric cylinder, the telescopic end of the electric cylinder is provided with an extrusion block, and a clamp is arranged above the test board. According to the utility model, the plurality of extrusion test stations are arranged, so that extrusion tests can be carried out on a plurality of cable protection sleeves at the same time, the extrusion test efficiency of the cable protection sleeves is improved, the contingency of test results is reduced, and the extrusion test results of the cable protection sleeves are more accurate. According to the cable protection sleeve extrusion test tool, the moving assembly is arranged, so that the whole cable protection sleeve extrusion test tool can be conveniently moved, after the cable protection sleeve extrusion test tool is moved to a proper position, the plurality of moving wheels are separated from the ground and stored in the supporting frame, and the supporting frame is in contact with the ground, so that the moving wheels are prevented from rolling; the stability of the whole cable protection sleeve extrusion test tool in the using process can be improved.

The invention relates to a method for constructing a portal coin public chain simulation system, and the method comprises the steps: modifying and reconstructing a monero 0.18. 2.2 version open source code of a portal coin client, and making a portal coin node mirror image; the method comprises the following steps: establishing a Kubernetes main node and working node cluster on the basis of a Kubernetes container arrangement platform, deploying a portal node container to a Kubernetes working node by using a portal node mirror image, automatically distributing a node IP address by using an IPPool provided by a Calico plug-in, and establishing mapping between the node IP address and a geographic position; persistently storing node data by using a PV persistent volume; simulating all nodes, light nodes and seed nodes of the Momena, and automatically establishing a network topology; cPU resource generation blocks are distributed in a user-defined mode; automatically generating a gate coin account based on the exponential distribution; the invention relates to automatically creating portal coin transactions based on exponential distributions. According to the method, large-scale container arrangement is carried out based on a Kubernetes platform, simulation of nodes, accounts, transactions and block generation of the portal-roundcoin is supported, and the scale and authenticity of portal-roundcoin public chain simulation are improved.

This utility model relates to the field of experimental instruments for insect chemical ecology, and particularly to a device for studying visual behavior selection experiments in small and medium-sized insects. The device includes a lower base plate, an upper base plate, and an insect light source activity chamber. Preferably, the lower and upper base plates are rectangular transparent acrylic plates. The advantages of this utility model are: it breaks through the limitations of traditional visual behavior selection experiment devices, enabling the screening of insect preferences for different wavelengths of light sources and for different colors. Furthermore, individual light source activity chambers can be flexibly combined according to actual experimental designs, and their positions can be randomly changed during repeated experiments, reducing the randomness of the experiment. Data can be collected by rotating the base plate for observation and counting. The device has a novel design, low cost, and simple operation.

A bending section and insertion tube connecting structure (100), and an endoscope. The bending section and insertion tube connecting structure (100) comprises: a bending section (110), provided with first clamping portions (111) in the circumferential direction; a connecting tube (120), connected to the bending section (110) in a sleeving way and provided with second clamping portions (121) in the circumferential direction, the first clamping portions (111) being snap-fitted with the second clamping portions (121), such that the bending section (110) is connected to the connecting tube (120); and an insertion tube (130), bonded with the connecting tube (120). In the bending section and insertion tube connecting structure (100) and the endoscope, the connecting tube (120) and the bending section (110) are connected in a sleeving way and also connected by means of snap fit, thereby reducing the probability that the first clamping portions (111) and the second clamping portions (121) are broken by an external force, and ensuring the overall structural stability of the bending section and insertion tube connecting structure (100). Meanwhile, the connecting tube (120) is bonded with the insertion tube (130), such that the bending section (110) and the insertion tube (130) are connected in an indirect contact way, thereby avoiding the risk of fall of the bending section (110) due to low stability of direct bonding.

The application discloses a sampling device for water pollution detection and belongs to the technical field of sampling devices, which comprises a support frame, a first lifting plate is slidably arranged on the support frame, a support plate is fixedly connected to the first lifting plate, a reciprocating screw rod is rotatably connected to the support plate, a first sliding rod is threadedly connected to the reciprocating screw rod, a first fixed plate is fixedly connected to the first sliding rod, one end of the first fixed plate is fixedly connected to a first guide rod, the other end of the first fixed plate is fixedly connected to the outer side wall of a fixed ring, a sampling cylinder is fixedly installed in the fixed ring, and multiple groups of sampling cylinders can simultaneously perform sampling work at the same depth through cooperation of the first guide rod and the second guide rod, and multiple groups of sampling cylinders can simultaneously perform integral movement through cooperation of the reciprocating screw rod, so that the sampling cylinders can perform multiple-point sampling work in a sewage pool, and sampling efficiency and detection representativeness are improved.

The present invention relates to the technical field of ink, and discloses a method for preparing an environmentally friendly water-soluble engraving gravure ink, which is operated as follows: placing porous staple fibers in water, adding surfactants, stirring after heating to 40-60°C, and obtaining a suspension; adding pigments to the suspension in batches, standing and filtering after sufficient stirring, drying the filtrate, and obtaining porous staple fibers filled with pigments; selecting polyethylene glycol with a melting point of 35-60°C, heating and melting, adding porous staple fibers, slowly stirring and filtering, dispersing the porous staple fibers, cooling at room temperature, and slowly stirring and mixing with anhydrous ink connecting materials to obtain ink slurry; mixing water and an auxiliary agent uniformly to obtain an aqueous diluent; mixing the ink slurry and the aqueous diluent before spraying, and spraying after sufficient grinding. The present invention blocks nano pigments in porous staple fibers, and the pigments in the ink slurry will not diffuse out from the surface micropores of the porous staple fibers, and the porous staple fibers are stably dispersed, thereby avoiding the problem of pigment agglomeration and precipitation.

This invention provides a refrigerant pressure detection structure and an air conditioner. The refrigerant pressure detection structure includes a refrigerant pipe and a pressure detection component. A refrigerant charging nozzle is connected to the wall of the refrigerant pipe. The pressure detection component includes a pressure switch assembly and a threaded connection. The pressure switch assembly is detachably connected to the refrigerant charging nozzle via the threaded connection. The inner cavity of the threaded connection has a force-applying column, and during the connection between the threaded connection and the refrigerant charging nozzle, the force-applying column applies force to the valve core of the refrigerant charging nozzle, causing the valve core to switch from a cut-off state to a connected state. This invention significantly improves the maintenance efficiency of the pressure detection component, reduces the likelihood of maintaining the refrigerant charging nozzle, and eliminates the need for refrigerant release and refilling operations in the refrigerant pipe during pressure detection component maintenance, significantly reducing maintenance costs.

The present invention relates to the technical field of coal quality identification and monitoring, and discloses a method and system for dynamic detection of coal quality based on image identification of mining face, wherein the method comprises: in the process of mining operation by a coal mining machine, obtaining images of the first, second and third regions from top to bottom of the mining face; extracting bedding features from the first region image and the second region image to obtain a bedding line distribution map; calculating the maximum interlayer spacing and the ordinate variance based on the bedding line distribution map; determining the uniformity of the coal seam based on the maximum interlayer spacing; determining the flatness of the coal seam based on the ordinate variance; obtaining the quality of the coal seam based on the uniformity of the coal seam and the flatness of the coal seam; extracting geometric features from the third region image and generating a bright spot distribution map; calculating the average area of ​​the bright spots based on the bright spot distribution map; determining the degree of crushing of the coal rock according to the average area of ​​the bright spots, and then determining the quality of the coal rock. The present invention can analyze the quality of the coal seam and the quality of the coal rock.

The utility model discloses a porcelain carving cutter control cap and a multi-control-position flat-bevel-opening porcelain carving cutter composed of the same. Only the top end of the knife is knocked when the flat and bevel carving knife is used for carving, the knife is prone to slipping off in the knocking process, and a standard position expanding auxiliary tool for knocking is lacked. The ceramic nicking tool comprises a cylinder and an outer supporting block, a connecting hole is formed in the lower end of the cylinder in the axial direction, the cylinder is detachably connected with the top end of a tool bar in a ceramic nicking tool body through the connecting hole, the cylinder is fixedly sleeved with the outer supporting block, and a knocking groove matched with a knocking hammer is formed in the top face of the outer supporting block. At least one side knocking notch matched with the knocking hammer is machined in the outer side wall of the outer supporting block. The multi-control-position flat bevel porcelain nicking tool comprises a porcelain nicking tool body and a porcelain nicking tool control cap, the porcelain nicking tool body comprises a tool bar and a tool bit, the tool bit is arranged at the lower end of the tool bar, and the porcelain nicking tool control cap is detachably connected to the upper end of the tool bar.

A molten silicon feeder for continuous czochralski single crystals includes an open crucible having a top opening located at the top and an injection port located in the lower part, the open crucible receiving and accommodating a solid silicon raw material; a heater for heating the open crucible, so that the solid silicon therein is melted, and injected below through the injection port at the bottom of the open crucible; a shell for enclosing and vacuum-sealing the overall structure of the molten silicon feeder.

This invention relates to a method, device, and medium for detecting hardware Trojans in RTL (Real-Time Linked Volume) based on one-dimensional byte streams. It belongs to the field of integrated circuit hardware security detection technology and addresses the problems of linear displacement sensitivity and hyperparameter dependence in RTL hardware Trojan detection. First, multiple RTL files are concatenated into a single file in a deterministic order, and a traceable boundary table is generated accordingly. Then, the RTL to be tested and the Golden reference are read into unsigned 8-bit integer sequences. Global sliding matching is performed on the test sequence over the entire reference sequence using a fixed-length window. The minimum absolute difference (SAD) is used as the similarity metric to find the best correspondence of each window in the reference sequence. Finally, the minimum SAD of all windows is concatenated into a one-dimensional difference curve. The Trojan's disturbance to the structure will appear as a high signal-to-noise ratio spike, fundamentally avoiding the problem of long step jumps that are difficult to locate in two-dimensional methods when encountering linear displacements caused by insertion / deletion.

The application discloses a kind of underwater concrete crack detection and grouting repair equipment, it is related to concrete structure repair technical field.The specific bottom bracket, shell, propeller, crack detection component, multiple Mcleod wheels, electric push rod and push plate are included, one side of shell is connected with telescopic pipe, the bottom of push plate is provided with the nozzle that the telescopic end of telescopic pipe is communicated, the bottom of push plate is provided with anti-shielding mechanism;Anti-shielding mechanism includes fixed plate, electric telescopic rod, moving plate and multiple cutting blocks, moving plate and push plate sliding fit.The anti-shielding mechanism of the application, by electric telescopic rod, moving plate, cutting block are cooperated, waterweeds and flexible garbage in front of nozzle are cut, broken, reduce the probability that waterweeds and flexible garbage cover to the surface of nozzle, so as to reduce the probability that waterweeds and flexible garbage are taken into crack together by nozzle in grouting process.

The application discloses a basalt fiber drawing adjusting method, system, device and medium, relates to the basalt fiber drawing control technical field, and comprises the following steps: obtaining the melt viscosity in the casting furnace; judging whether the melt viscosity is within the range of the preset viscosity threshold value, if yes, returning to obtaining the melt viscosity in the casting furnace, if not, continuously obtaining multiple drawing state images of the basalt fiber in unit time; according to the multiple drawing state images, identifying whether there is a drawing abnormal feature, if not, returning to obtaining the melt viscosity in the casting furnace, if yes, obtaining a first temperature adjusting parameter; wherein the first temperature adjusting parameter is used for adjusting the melt temperature in the casting furnace; the first temperature adjusting parameter is input into a viscosity-temperature initial curve of a drawing process to obtain a viscosity-temperature target curve, and the application has the advantages of self-adaptive adjustment and improved adjusting efficiency.

This invention discloses an automatic planning method, apparatus, and equipment for indoor point cloud data acquisition sites in buildings. The method includes: acquiring a BIM model of the building to be inspected; extracting geometric information and topological relationships of target components from the BIM model, where the target components include rooms and doors; determining the ordinate of the scanning site and the concavity / convexity of the room boundaries of the building to be inspected based on the geometric information and topological relationships; determining the abscissa of the scanning site based on the ordinate and the concavity / convexity of the room boundaries; and determining the location of the scanning site based on the ordinate and abscissa. This achieves automatic planning of scanning sites, greatly improving scanning efficiency, reducing labor costs, and also reducing the difficulty of interpreting drawings in engineering projects. The scanning site plan is more easily accepted by personnel from different fields or professions, and it solves the drawbacks of traditional manual scanning that relies solely on human experience for judgment, reducing randomness and errors.

The application relates to the technical field of data processing, in particular to an underwater robot fault identification method and system, which comprises the following steps: acquiring a plurality of operation data sequences; obtaining a plurality of data combinations according to the operation times, values and positions in the operation data sequences of each operation data; obtaining the correlation dimension of each dimension, the correlation relationship between each dimension and the correlation dimension and the power relationship between the value of the operation data of each dimension and the value of the operation data of the correlation dimension according to the value and time of the operation data of each dimension in each data combination; obtaining the abnormal data of each dimension according to the value of each operation data, obtaining the fault data according to the power relationship between the value of each operation data of each dimension and the value of the operation data of the correlation dimension, and completing the anomaly detection. The application aims to solve the problem that the values obtained through sensors cannot distinguish robot faults from sensor faults.

A measurement device 1 includes: an excitation optical system 3 configured to guide excitation light L1 toward a subject to be measured S; an illumination optical system 10 configured to form an illumination spot Lb of illumination light L3 on the subject to be measured S, and an image capturing unit 11 configured to capture an image of the illumination spot Lb on the subject to be measured S. The illumination optical system 10 includes a light transmission member having a central region 51 that has a first color and a peripheral region 52 that has a second color different from the first color and surrounds the central region 51, and the excitation optical system 3 and the illumination optical system 10 are optically connected to each other such that in a field of view of the image capturing unit 11, an irradiation spot La of the excitation light L1 on the subject to be measured S is included in a central spot region Lc of the illumination light L3 that has passed through the central region 51 and is surrounded by a peripheral spot region Ld of the illumination light L3 that has passed through the peripheral region 52.