20results about How to "Avoid exclusion" patented technology

The invention belongs to the field of network attack detection, and particularly relates to an APT attack detection method based on traceability graph behavior information. The method comprises the following four steps: step 1, data preprocessing; step 2, generating a sub-graph; step 3, behavior feature extraction; performing feature extraction on each sub-graph, wherein the feature extraction comprises node feature extraction and edge feature extraction; 4, designing and training a classification model, and performing anomaly detection; and training and testing the classification model, sequentially classifying the type of each edge by using the trained model, and when a certain edge cannot be correctly classified by any existing sub-model, judging that the edge is abnormal, and outputting a behavior structure diagram of the edge. According to the method, behavior attributes and structural information thereof are introduced into the modeling of the traceability graph, and the category of traditionally paying attention to entity interaction relationships is exceeded; by introducing a pooling method and graph representation learning, the expression ability of the model is improved, important information in a behavior structure is more effectively captured, and continuous optimization is performed on the basis of initial structure information.

The invention relates to the technical field of recombinant protein expression, in particular to recombinant human-derived III-type collagen as well as a preparation method and application thereof. The invention provides a recombinant human source III type collagen. The amino acid sequence of the recombinant human source III type collagen is shown as SEQ ID NO. 1. The recombinant human-derived III-type collagen prepared by the invention can be better applied to a human body, better exerts biological functions of the collagen, avoids repulsive interaction, is high in safety, can effectively promote cell proliferation and oxidation resistance, and is high in expression yield, stable in batches and good in quality; the recombinant human III type collagen prepared by the invention has the potential of being applied to preparation and production of biological medicines and cosmetics.

The invention provides a refrigerant circulation system for an air suspension compressor and a control method and device of the refrigerant circulation system. The system comprises a main refrigerant loop provided with an air suspension compressor, a condenser, an evaporator and an electronic expansion valve which are sequentially connected, a first inlet is formed in an air bearing of the air suspension compressor, a first outlet is formed in a machine body of the air suspension compressor, and the first inlet and the first outlet are both communicated to a cavity in the machine body; an outlet of the condenser is communicated to the first inlet through the liquid supply pipeline, and the first outlet is communicated to the evaporator through the liquid discharge pipeline; a pump body is arranged on the liquid supply pipeline, an exhaust pipeline communicated to the evaporator is further arranged on the liquid supply pipeline, and an exhaust valve is arranged on the exhaust pipeline. Through accurate control and an exhaust mechanism, on one hand, it is ensured that a refrigerant circulates in the system in the optimal state, on the other hand, stable operation of the pump body is ensured, the working efficiency of the pump body is improved, and then the efficient refrigeration effect is achieved.

The utility model relates to the technical field of kilns, in particular to a kiln chimney. The chimney comprises a chimney body and a plurality of filtering assemblies arranged in the chimney at intervals in the length direction of the chimney. The outer wall of the chimney is provided with a plurality of guide grooves corresponding to the filtering assemblies, and one end of each guide groove is rotationally connected with a rotating shaft fixed to the corresponding filtering assembly; each filtering assembly comprises a mounting plate fixedly connected with the rotating shaft, limiting plates symmetrically fixed to the upper side and the lower side of the inner wall of the mounting plate, a mounting ring arranged between the two limiting plates, and a filtering net fixed in the mounting ring, wherein the two ends of the mounting ring are detachably connected with the limiting plates; a limiting groove is formed in the end, away from the rotating shaft, of the guide groove, an elastic limiting block corresponding to the limiting groove is fixed to the mounting plate, and the elastic limiting block is in interference fit with the limiting groove. According to the device, the single filter screen can be replaced, the operation steps are simplified, and the efficiency is improved.

The invention belongs to the field of network attack detection, and particularly relates to a network security monitoring system for coping with APT (Advanced Persistent Threat) attacks. Comprising an industrial control network gateway security device, an industrial control network management system and an industrial control network security operation center, and the industrial control network gateway security device comprises a behavior data collection module which is used for collecting network traffic and system activity data of various devices including an intrusion detection system and a traffic probe; providing for an industrial control network management system; the industrial control network management system comprises a data preprocessing module, a subgraph generation module, a behavior feature extraction module and a model training and anomaly detection module. Preprocessing the original data, generating a traceability graph and a sub-graph, extracting behavior characteristics, and establishing a classification model for anomaly detection; and the industrial control network security operation center comprises a risk prompt reporting module which reports the detected risk to security operation personnel in a visual mode and generates a detailed analysis report.

The invention discloses a strain clamp for an anti-freezing and anti-bulging wire and a crimping method thereof, the strain clamp for the wire is used for crimping with the wire, the wire comprises an outer layer aluminum wire and an inner layer wire core, the strain clamp for the wire at least comprises a strain clamp aluminum pipe, a strain clamp steel anchor and a strain clamp liner pipe, the strain clamp aluminum pipe is of a hollow tubular structure, and the strain clamp steel anchor is of a hollow tubular structure. The strain clamp steel anchor is arranged in the strain clamp aluminum pipe to allow a wire to penetrate from the first end of the strain clamp aluminum pipe, the strain clamp steel anchor comprises a pull ring part, a connecting part and a crimping part which are sequentially connected, the pull ring part is located outside the strain clamp aluminum pipe, the crimping part and the connecting part are installed at the second end of the strain clamp aluminum pipe, the crimping part is of a hollow tubular structure, and an opening is formed in the end of the crimping part. And the strain clamp liner tube is arranged on the periphery of the crimping part in a sleeving manner, and is filled in an internal gap area between the strain clamp aluminum tube and the crimping part. The strain clamp can prevent water from entering a non-pressing area of the strain clamp of a lead of an overhead power transmission line in an upside-down hanging state to cause freezing and bulging.

The invention relates to a construction method of an OriCiro cell-free cloning system based on an RCR technology, and belongs to the technical field of molecular biology. The construction method comprises the following steps: expression and purification of high-activity Tn5 transposase, transposon-mediated oriC insertion, RCR amplification, traceless excision of oriC transposon and repair cyclization. The construction method provided by the invention provides a rapid, reliable and mutation-burden-free new genome construction and rescue path for the existing research, can solve the difficult problem of construction of large-size and toxic DNA sequence vectors for gene therapy, shortens the research and development and production periods, and improves the production efficiency. Therefore, a powerful tool is provided for the fields of preparation of mRNA vaccines or therapy plasmids, construction of gene therapy vectors, supply of pharmaceutical-grade plasmid DNA, research of a virus molecular mechanism and the like.

The invention discloses a chimera dsRNA (double-stranded ribonucleic acid). The chimera dsRNA comprises an efficient silencing segment in a Ustilaginoidea virens cytochrome P450 sterol 14 alpha-demethylase UvCYP51 gene, an efficient silencing segment in a Ustilaginoidea virens transcription factor UvbZIP11 gene and an efficient silencing segment in a Ustilaginoidea virens apoptosis related gene UvBI-1 gene. The invention also discloses a preparation method of the chimera dsRNA. The invention also discloses application of the chimera dsRNA in prevention and treatment of false smut. The invention also discloses a use method of the chimera dsRNA, and the chimera dsRNA can be prepared into a nucleic acid pesticide which acts on rice panicles and is used for preventing and treating false smut.

The invention provides a construction method of a humanized keloid mouse model. The construction method comprises the following steps: constructing and preparing BAC plasmids; carrying out superovulation and fertilized egg collection on the laboratory mice; carrying out pronucleus microinjection on the fertilized ova; embryo transplantation after injection; performing genotype identification; breeding and genetic analysis; and verifying the construction result of the humanized immune system by using immunohistochemistry and immunofluorescence. According to the invention, peripheral blood mononuclear cells treated by sCD27 and skin (homologous cells and tissues) around keloids are transplanted into a CD70 gene overexpressed NSG-MHC-DKO immune deficiency mouse body for the first time, so that HLA rejection possibly caused by different sources of immune cells and tissues is avoided; the internal microenvironment of the keloid and the interaction between the keloid and an immune system are restored to the greatest extent, and the influence of immune factors on the occurrence and development of the keloid can be researched in vitro. It is found and verified for the first time that activation of the CD27-CD70 axis can promote generation and development of keloids, and a suitable animal model is provided for research and development of anti-scar drugs, especially immunotherapy.

The invention provides a monitoring data screening method and system, and the method comprises the steps: obtaining a plurality of decision attribute values from a decision-making mechanism based on decision attributes, giving a first ID number to form a first data pair, and obtaining a first equivalent set; obtaining a monitoring value from a monitoring mechanism comprising a plurality of monitoring attributes, and endowing the monitoring value with a second ID number to form a second data pair, thereby obtaining a second equivalent set; obtaining a decision information entropy through the first equivalent set; determining and acquiring a monitoring conditional entropy based on the first equivalent set and the second equivalent set; and determining a gain value of the monitoring attribute based on the decision information entropy and the monitoring conditional entropy, and judging whether the monitoring attribute needs to be filtered or not through the gain value. On the basis of the mode, the correlation degree between the monitoring attributes and the decision records is analyzed, the monitoring attributes with the low correlation degree are screened out, more redundant data and invalid data are eliminated, and the monitoring efficiency and the monitoring accuracy are improved.

The application discloses a casting forming die for an oil collecting shell and belongs to the technical field of thin-wall part casting devices. The die comprises a rear seat and a front seat which are connected with each other. An inner cavity die with an outer contour consistent with the shape of an inner cavity of a shell to be formed is arranged in the middle of the rear seat. A sprue, a front section riser, a middle section riser and a rear section riser are formed on the front seat. One end of each of the risers extends to the upper end face of the front seat, and the other end is connected with a corresponding discharge groove of a shell die seat. The inner cavity shape of the shell die seat is consistent with the outer contour of the shell to be formed. A chill assembly is further arranged on the shell die seat, and a forming rib vent groove is further formed on the top of the shell die seat. The application effectively solves the problems of local non-forming of parts and internal organization shrinkage and porosity in the current casting production of the oil collecting shell.

The present invention discloses a milk bottle, comprising a detachably connected bottle body and a bottle bottom, the bottle body and the bottle bottom are both made of silica gel, the outer shape of the bottle body is an arc shape imitating breast milk, a nipple is arranged on the outside of the bottle body, a water outlet is arranged on the nipple, a receiving cavity is arranged in the bottle body, the bottle body is arranged with a first opening, the bottle bottom selectively blocks the first opening, a storage bin for storing liquid is arranged in the receiving cavity, the water outlet is connected with the storage bin, a second opening is arranged on the side of the storage bin close to the bottle bottom, and reinforcing ribs are arranged on the cavity wall of the receiving cavity and the periphery of the storage bin. The bottle body is arranged in an arc shape imitating breast milk, so that infants and young children can gradually adapt to the feeding method of milk bottles; because the bottle body is made of silica gel, it is easy to deform the milk bottle by holding it by hand, and by arranging reinforcing ribs between the storage bin and the receiving cavity, when the liquid in the storage bin is less, the reinforcing ribs can provide support for the bottle body, so that the bottle body maintains an arc shape, and avoids rejection of the milk bottle due to deformation of the baby.

The utility model provides a building outer wall line foot drainage device of reasonable structure design has safety, durability, aesthetic property. The utility model discloses a drainage groove, fixing piece and drain pipe, the fixing piece fixed setting is on the line foot upper portion, the middle part fixed setting of fixing piece has fixing piece clamping edge, and the drainage groove clamping fixed is on fixing piece clamping edge, the middle position of drainage groove is provided with the drainage hole, and the upper surface of the part of drainage groove far from the drainage hole is high, and the upper surface of the part of drainage hole near is low, the drain pipe is embedded in the line foot, and its top stretches out line foot rear and is connected with the drainage hole, and its bottom stretches out line foot.

The invention discloses a measuring device for garment customization. The measuring device mainly comprises a bin body, a sliding assembly, a driving part, an infrared receiver and a handheld positioner, and the inner wall of the bin body is provided with the sliding assembly, the driving part and the infrared receiver. The invention further discloses an operation method and a using method of the measuring device. Compared with the prior art, the 3D intelligent measurement system has the following advantages and effects that the specific point position of the user is positioned through the handheld positioner, and the problem that in a traditional mode, rejection is caused by measurement of a master or the error of the 3D intelligent measurement system is increased due to loose wearing of the user can be solved.

The utility model discloses a vibrating type five-cereal raw material screening machine which comprises a screening machine body, a feeding hopper is fixedly installed on the top of the screening machine body, a screening mechanism is arranged in the screening machine body, and the screening mechanism comprises a discharging groove plate, a screening plate, a fixing shaft, a fine discharging groove plate, a first through groove and a second through groove. A first through groove and a second through groove are formed in one side and the bottom of the screening machine body correspondingly, fixing shafts are fixedly installed on the inner walls of the two sides of the screening machine body correspondingly, the ends, close to each other, of the two fixing shafts are rotationally connected with discharging groove plates penetrating and extending out of the first through groove correspondingly, and a screening plate is fixedly installed on one side of the inner wall of each discharging groove plate. The sliding plate slides in the arc-shaped groove to drive the discharging groove plate to swing around the fixed shaft, so that the five cereals on the sieve plate are screened, the five cereals are prevented from being directly discharged from the discharging groove plate, and therefore the five cereals can be screened, and classified collection of the five cereals is facilitated.

The invention relates to the technical field of environment monitoring, in particular to a pollution discharge monitoring system and method based on water body detection, and the pollution discharge monitoring method comprises the following steps: S1, setting a plurality of water quality monitoring points on a flowing path of a water body needing to be monitored; s2, judging whether pollution discharge of the current water quality monitoring point exceeds the standard or not; s3, marking the water quality monitoring point with the pollution discharge exceeding the standard as a control monitoring point, extracting a flowing path of the water body flowing out of the control monitoring point, and closing a control valve of the last water quality monitoring point flowing through the flowing path; s4, checking a pollution source in the pollution flow section, calculating the flow rates of the current water quality detection point and the downstream water quality detection points to obtain the last downstream water quality detection point through which the sewage which is discharged in a standard exceeding manner flows, and adjusting the flow rate of the downstream water quality detection point, so that the water which is not discharged in the standard exceeding manner can be discharged to the maximum extent. The water body exceeding discharge is blocked in time, so that the environment pollution is avoided.

The invention relates to the technical field of fermentation product stirring, and discloses a melon vine fermentation product stirring device which comprises a gas treatment component, the gas treatment component further comprises a shell, the surface of the shell is fixedly connected with a sealed discharge port, and the inner wall of the shell is fixedly connected with a fixing plate. According to the device, gas pressure generated in the fermentation process of fermented materials is utilized, the device is provided with the rubber round block, the fixing block and the spring, when the fermented materials are stirred in the device, the fermented materials fully react to generate unreacted gas such as carbon dioxide and nitrogen, and the gas can not react with the gas. When more and more gases incapable of reacting exist in the device, a fixed circular plate is extruded, the fixed circular plate can move after being extruded to push a fixed supporting plate to move, and under the action of a spring, one end, far away from the spring, of a movable long plate can move upwards.

Screening methods are provided that are based on using ELISpot assays to measure the distribution profile of maximum spot intensity or mean spot intensity of spontaneous cytokine or chemokine or the number of "low intensity" spontaneous cytokine or chemokine producing cells as a clinically relevant measure of immune function for diagnosing patients with a particular disorder based on one or more of these measurements and for treating the particular disorder in the patient. In some embodiments, the cytokine is IFN-gamma or TNF-alpha. Patients can optionally be further evaluated to determine whether they are of an immunosuppressed or hyperinflammatory immune phenotype by quantifying cytokine and / or chemokine levels in a biological sample. Representative disorders include sepsis, autoimmune disease, autoimmunity, cancer, and lymphopenia.

The present invention provides a monitoring data screening method and system, the method comprising: obtaining a plurality of decision attribute values ​​from a decision mechanism based on decision attributes, and assigning a first ID number to form a first data pair, thereby obtaining a first equivalent set; obtaining monitoring values ​​from a monitoring mechanism including a plurality of monitoring attributes, and assigning a second ID number to form a second data pair, thereby obtaining a second equivalent set; obtaining decision information entropy through the first equivalent set; determining to obtain monitoring condition entropy based on the first equivalent set and the second equivalent set; determining a gain value of the monitoring attribute based on the decision information entropy and the monitoring condition entropy, and judging whether the monitoring attribute needs to be filtered through the gain value. Based on the above method, the correlation degree between the monitoring attribute and the decision record is analyzed, the monitoring attribute with a lower correlation degree is screened out, a large amount of redundant data and invalid data are eliminated, and the monitoring efficiency and monitoring accuracy are improved.

The utility model discloses a cable sheath repairing device, and relates to the technical field of cable repairing. Comprising a fixing shell, the fixing shell is in a C shape, arc-shaped plates are arranged at the two ends of the fixing shell, and limiting grooves are formed in the outer sides of the arc-shaped plates; the fixing assembly is arranged on the outer side of the fixing shell and used for fixing the fixing shell; the exhaust assembly is arranged on the outer side of the fixed shell and used for extracting air in the fixed shell; the sealing assembly is arranged on the outer side of the exhaust assembly and used for controlling exhaust of the exhaust assembly. According to the utility model, through the arrangement of the exhaust assembly, the sealing assembly and the fixing assembly, the cooperation of the first fixing clamp, the second fixing clamp, the fixing pipe, the sliding pad, the first fixing pad and the second sealing pad is realized, so that bubbles mixed in glue can be quickly discharged, and the phenomenon that the bubbles are blocked after the encapsulation is finished is avoided. And enough time needs to be reserved to remove bubbles, so that the cable repairing time is shortened, and the repairing efficiency is improved.