37results about How to "Counterproductive" patented technology

The invention relates to a high-tenacity conducting nanocomposite material and a preparation method thereof. The electrical conductivity of a polymer material is improved, at the same time, the mechanical properties, especially shock resistance, of the material is improved. The composite material uses carbon nanotubes as an electrically-conducting part, and is added with inorganic rigid calcium carbonate nano particles, further improves the electrical conductivity of the composite material by utilization of the volume exclusion effect of nano calcium carbonate, and at the same time, the inorganic toughening effect is achieved through the surface modification of nano calcium carbonate. The preparation method provided by the invention is simple and is suitable for industrial production; and the prepared composite material has high elastic modulus, impact strength and specific conductivity.

The invention discloses a modified biomass fiber and a preparation method thereof. The modified biomass fiber is prepared by adding a porous nano-material to a biomass fiber material for a modifying purpose; the biomass fiber material is of one or more co-dissolvable components; the intrinsic viscosity of the biomass fiber material is larger than 200mpa.s; the porous nano-material is activated carbon having the particle size being 5-170nm and the specific surface area being not less than 50m<2>/g, or gaseous SiO2 having the particle size being 5-170nm and the specific surface area being not less than 50m<2>/g. When the modified biomass fiber is prepared, the porous nano-material is added to a solvent first, then sufficiently stirred and uniformly dispersed, then added with biomass fiber material powder while stirring and sufficiently stirred for dispersion and homogenization. According to the modified biomass fiber, the breaking strength and the elongation at break are improved, and thus the spinnability is enhanced.

The invention belongs to the field of image recognition, particularly relates to an iris image feature extraction method, a system and a device based on federated learning, and aims to solve the problems that an existing iris feature extraction model cannot give consideration to privacy protection and multi-party cooperation, and the recognition performance of the model cannot be improved by purely stacking iris data for model training. According to the invention, the local iris features of the local iris data set are obtained, so that the local feature triple and the local ternary loss are generated; a Wasserstein federation ternary loss function is calculated at a third party, an iris image feature extraction network of the local platform is updated according to the Wasserstein federation ternary loss function, and new iris image features are extracted by using the new iris image feature extraction network. According to the method, distribution characteristics and rules of iris features from different sources in the feature space are utilized to assist model training, so that the extracted features have better distinguishability, and therefore, the iris feature expression ability and recognition accuracy of each partner are improved.

The invention relates to a complex network distributed pulse synchronization method and system based on a parameter variation method. The method comprises the following steps: considering a kind of follower network and confirming leader nodes of the follower network; obtaining state information of each node through a sensor, and establishing an error network model, so that a state information vector and a tracking state information vector of each node in the network can be obtained; and returning the state information of each adjacent node, and arranging a distributed negative feedback controller, wherein the distributed negative feedback controller is influenced by pulse disturbance, and judging whether the pulse acts positively or negatively according to the disturbance type. Due to thefact that the performance of the controller when the pulse effect plays a positive role and the performance of the controller when the pulse effect plays a negative role are discussed respectively, limitation is reduced; and due to the fact that a discrete control method is used, a new pulse controller is designed, and the cost can be effectively reduced while the control effect is guaranteed by generating the effect only at some moments.

The invention relates to antifreeze cement, which is prepared by processes of crushing raw material and drying, burdening, grinding, calcining, stirring and grinding. The invention is characterized in that a proper proportion of the antifreeze component can be filled in cement raw material for calcining, the antifreeze component is added in calcinied clinker, placed in a stirring device for fully stirring and grinding to prepare the cement finished product.

The invention belongs to the field of tires, and particularly relates to a run-flat tire. The invention provides the run-flat tire, which comprises a tire body layer, a tire surface layer, a belt bundle layer, an inner lining layer, tire side layers, tire ring cores and a crown belt layer, wherein the pair of tire side layers are connected with the two sides of the tire surface layer; the tire side layers and the tire ring core are connected; the tire body layer is in an annular extending state between the pair of tire ring cores; the tire ring cores are arranged at the tire ring parts; tire side support rubber is arranged between the inner lining layer and the tire body layer in the tire side position; the belt bundle layer, the crown belt layer and the tire surface layer are sequentiallyarranged at the radial outer side of the tire crown part of the tire body layer; a tire crown reinforcing layer is arranged between the belt bundle layer and the crown belt layer.

The invention relates to an application of multilayer foamed iron-nickel metal materials and aims to provide an application of the multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion in order to explore the isolation and suppression conditions of the multilayer foamed iron-nickel metal materials in the aspect of the gas explosion. A method comprises steps asfollows: 2-3 layers of the foamed iron-nickel metal materials are arranged at intervals, the distance between every two adjacent foamed iron-nickel metal materials is 5-20 cm, the thickness of each layer of the foamed iron-nickel metal material is 2-3 cm, porosity of the foamed iron-nickel metal material close to the side of a detonating point is 20-30 PPI, and porosity of the other foamed iron-nickel metal materials is 10-30 PPI. The invention applies to the field of gas explosion suppression and isolation.

The invention discloses a water pump casting cleaning device which comprises a working machine box. A cleaning box is arranged at the bottom of the working machine box, a rotating mechanism is arranged perpendicularly above a fixing mechanism, high-pressure spray heads are symmetrically installed on the center line of the lower portion of the rotating mechanism, and a water tank is arranged at thetop of the working machine box. A heat preservation layer is connected into the water tank, a magnesium rod is installed on the lower part of the inner part of the heat preservation layer, and a heating rod is connected to the right side of the magnesium rod. The cleaning box and the water tank are arranged at the bottom and the top of the working machine box correspondingly, through arrangementof the working machine box, the cleaning box and the water tank can be conveniently fixed, meanwhile, through arrangement of the cleaning box, oil stain on the surface of a water pump casing can be conveniently decomposed, meanwhile, through the arrangement of the heating rod and the heat preservation layer in the water tank, liquid can be heated and subjected to heat preservation conveniently, the situation that the oil stain cannot be cleaned away while dust on the surface of the casting is cleaned away is avoided, and therefore the surface of the water pump casting can be cleaned conveniently.

The invention discloses an assistance acceleration wave power generator suitable for a rainy day. The assistance acceleration wave power generator suitable for the rainy day structurally comprises anoscillating water column chamber, an outlet cylinder, an assistance device, a power generator, a rain sheltering device, a support, a water turbine and a rotating shaft. The outlet cylinder is connected with the top of the oscillating water column chamber, and the water turbine is arranged inside the outlet cylinder and connected with the power generator through the rotating shaft. The power generator is fixedly installed on the top of the outlet cylinder through the support, the rain sheltering device is arranged on the top of the power generator, and the assistance device is connected with the outer side of the outlet cylinder. The rain sheltering device comprises electromagnets, a first mesh plate, a second mesh plate, a third mesh plate and a supporting rod. The assistance accelerationwave power generator suitable for the rainy day has the beneficial effects that the three mesh plates can be distributed in stagger through the effect of repulsion of the same poles of the electromagnets, and therefore the number of gaps is reduced, the rainwater falling rate is reduced, and the influence on the air rising process is reduced; and the water turbine is accelerated by the assistancedevice, the power generation efficiency is improved, and the phenomenon that the assistance device has a reverse effect is avoided through a switch control device.

The invention discloses a preparation method of Etocrilene. The method comprises the following steps: 1), benzophenone, ethyl cyanoacetate, ammonium acetate and acetic acid are added into a reaction container in proportion, and then are heated and dissolved; 2), vacuumizing is performed gradually to reach a preset vacuum degree, the temperature is raised to a first preset temperature, and then iskept, a preset amount of acetic anhydride is added into the reaction container, and a reaction is carried out for 8-12 h; and 3), the container is cooled to a second preset temperature, the obtained reaction product is washed with water, stands and stratifies, and the obtained upper oil layer is taken, cooled for crystallization, filtered and dried to obtain the target product Etocrilene. The prepared Etocrilene has a high purity and few impurities; and the acetic anhydride is added in the preparation process, and a two-catalyst mode combining 1,3-dialkylimidazolium oxometallate and acetic acid is adopted to replace a traditional single-catalyst mode, so the conversion rate is greatly improved.

The invention discloses a switching-on and switching-off indicating device of a circuit breaker. The device comprises an indication part rotatably arranged on a mounting part of a circuit breaker shell, a reset structure arranged between the indication part and the mounting part, and a driving rod which is arranged in the circuit breaker shell in a reciprocating motion manner and is driven by a contact mechanism, further comprises an elastic transmission part which is connected with the driving rod and the indication part, and the indication part is driven by the elastic transmission part to trigger a signal indication switch to be turned on or turned off when the driving rod reciprocates towards or away from the elastic transmission part. The device is advantaged in that movement and force are transmitted between the driving rod and the indication part through the elastic transmission part, stress buffering is achieved, transmission efficiency is high, the motion stroke of the drivingrod is improved, the condition that the motion stroke of opening and closing of a contact mechanism is large can be met, opening and closing signals of a circuit breaker are accurately and reliably outputted, and use performance of products is improved.

The invention discloses a soft-shelled turtle pond water quality purification device and a purification method thereof, and belongs to the technical field of soft-shelled turtle culture, the soft-shelled turtle pond water quality purification device comprises a culture pond, a mud discharge pipeline, a treatment pond, an auxiliary mechanism, a splashing mechanism, a mud discharge mechanism, a purification mechanism, a screening mechanism and a separation mechanism, the treatment pond is arranged beside the culture pond, and the mud discharge pipeline is communicated between the culture pond and the treatment pond; the auxiliary mechanism is rotatably mounted in the culture pond, the splashing mechanism is slidably mounted on the culture pond, the sludge discharging mechanism is mounted at the inner bottom of the culture pond, the purifying mechanism is mounted in the treatment pond, the screening mechanism is mounted in the treatment pond, the separating mechanism is mounted in the treatment pond, and a silt backflow pipeline is arranged between the separating mechanism and the culture pond. According to the soft-shelled turtle pond water quality purification device and the purification method thereof, quick lime is regularly added into the culture pond, pollutants in the culture pond are purified, and then silt and purified water are recycled.

The invention discloses a multifunctional health care schoolbag. The multifunctional health care schoolbag structurally comprises a hand-held soft ring, a kyphosis correction device, a schoolbag shelland two storing grids. The two storing grids are mounted at the bottoms of the two side faces of the schoolbag shell correspondingly and fixedly connected with the two side faces of the schoolbag shell. The kyphosis correction device is arranged in an inner cavity of the back face of the schoolbag shell. According to the multifunctional health care schoolbag, under the combined actions of straps,a fixing mechanism, an anti-deformation mechanism, a first tension mechanism, a component force correction mechanism, a connecting mechanism and a second tension mechanism, a corrected person is stressed equally, and the stress condition of the back of the corrected person is automatically adjusted according to the kyphosis condition of the corrected person, so that kyphosis correction is achieved, it is guaranteed that the kyphosis correction function of the health care schoolbag is conducted normally, and thus the correction function of the health care schoolbag is improved.

The invention belongs to the technical field of enzyme preparation application, and particularly provides a method for preserving a liquid enzyme preparation composition. The method comprises the following steps: preparing an enzyme preparation composition mixed solution I from 10-30wt% of acid cellulase, 5-20wt% of acid mannase and 20-50wt% of acid xylanase; preparing an enzyme preparation composition mixed solution II from 50-80wt% of acid protease and 10-40wt% of glycerol; uniformly mixing the enzyme preparation composition mixed solution I and the enzyme preparation composition mixed solution II according to a weight ratio of 2:3, and immediately stirring the mixture for 10-20min at the rotating speed of 50-60r/min to obtain a final product liquid enzyme preparation composition. The method provided by the invention can ensure that the activity of each of non-starch polysaccharase and a liquid complex enzyme of acid protease is not influenced when the non-starch polysaccharase and liquid complex enzyme are stored for a long time or are used simultaneously, thereby reducing the cost.

The invention relates to a salary performance supply chain management system, a performance salary accounting system comprises a performance system and a salary system, the performance system comprises a performance assessment module and a performance auditing module, and the performance assessment module is used for extracting the performance condition of each user in the performance assessment module; the salary system comprises a plurality of self-defined salary units and a calculation module, the self-defined salary units are used for setting salary and setting project influence factors, and the calculation module calculates to obtain a salary amount; the information management system extracts the salary amount of each user in the performance salary accounting system and converts the salary amount into a salary report. Salary and project influence factors are set in the salary system, namely, a salary calculation formula of each user is set, the salary is automatically calculated by the calculation formula and is converted into a salary report, and since each performance entry is audited, only whether the calculation formula is correct or not needs to be audited, so that the efficiency is improved. And multiple times of statistics of assessment conditions and manual calculation of salary are not needed, so that background problems are solved.

The invention relates to the technical field of medium-high pressure formed foil, in particular to a pretreatment solution for improving the capacity of medium-high pressure formed foil used for an aluminum electrolytic capacitor and a formation process. The formation process is characterized in that aluminum foil obtained after electrolytic corrosion treatment is subjected to immersion treatmentin pure water with the temperature ranging from 90 DEG C to 100 DEG C; after being taken out, the aluminum foil is pretreated in a solution adopting phosphoric acid or phosphate as a main solute, andglucose and phytate are added into the pretreatment solution as a supplementary additive; and after pure water is used for cleaning, four stages of formation treatment are carried out, and phytate orphytic acid is added into a first-stage formation solution and a second-stage formation solution as a supplementary additive. The capacity of the formed foil is improved by 20%-25%, leak currents arereduced, and bending is improved.