109 results about "Binding action" patented technology

The invention discloses an acid-soluble composite plugging agent which mainly comprises shell particles, pre-crosslinked gel expanded particles, fiber materials and lime stone powder. The invention further provides application of the acid-soluble composite plugging agent in treatment of reservoir leakage in a drilling process. According to the invention, when being used for treating the reservoir leakage in the drilling process, the acid-soluble composite plugging agent disclosed by the invention is uniformly mixed with drilling fluid in a mass ratio of 1:(2-9) to prepare plugging slurry for plugging in the drilling process. The shell particles are high in acid solubility and greater in hardness, and can be applied as rigid bridge-binding particles in the plugging agent; expanding volume of polymer particles is continuously increased along with prolonging of water absorbing time; the fiber materials can be used for changing a fractured leaking channel into a pored leaking channel by virtue of bridge binding action. The secondary component is acid-soluble lime stone powder which can further fill up small gaps of a blocking all formed by the three materials, so that compactness and strength of the building wall are further increased to finally form the compact and high-strength blocking wall.

The invention provides a multifunctional visual doorbell system and an implementation method thereof, belonging to the technical field of biometric identification. The system comprises a face camera shooting module, a face recognition module, a doorcontrol computing processing module, a visual intercom module, a multiplexed control template, an electromagnetic lock and the like. In the invention, the face recognition technology and the visual doorbell technology are blended well; the display screen used for face modeling and the display screen used for observation can be realized by utilizing the same multiplexed display screen; in addition, a card reader can be used for identifying cards carried by users; a bar code reading module can be used for reading the bar code content without increasing hardware devices; an legitimate access times automatic-authorization module can be used for automatically authorizing face recognition; and a person-binding module can be used for monitoring person-binding actions effectively and the like. The invention improves the application convenience, use function and safety performance of current face recognition doorcontrol technology greatly.

Disclosed is a neutrophil gelatinase-associated lipocalin (NGAL) protein level ELISA kit which is composed of a reagent I and a reagent II. The reagent I comprises a slow-release agent and a denaturant; the reagent II comprises latex particles coated with NGAL antibodies. Aggregated protein is denatured to some extent after being added with the denaturant, physical and (or) chemical binding site is exposed, chemical binding action of the chemical binding site is fractured through sulfydryl dissociation agent , while physical binding action of the physical binding site is dispersed by surface active agent, so that the aggregated protein is disaggregated. Therefore, it is quite important to choose the appropriate types and concentrations of denaturant, sulfydryl dissociation agent, and surface active agent; the aggregate is disaggregated without interference on following immunological detection. According to the method, the the appropriate types and concentrations of denaturant, sulfydryl dissociation agent and surface active agent are determined and chosen specifically, which solves the technical problem above.

The present invention relates to assays useful for predicting whether a compound has the effect to prolong the QT interval as measured by an electrocardiogram in a human. These assays make use of the binding action of dofetilide to the HERG K⁺ channel, and the propensity of a test compound to influence that binding action.

The invention discloses a method for evaluating resistance of sandy soil on an embedded submarine pipeline under the action of waves. The method comprises the steps that soil body samples with different relative densities are prepared by obtaining sandy soil samples; different initial static stress ratios are selected for soil body samples with the corresponding relative densities, different dynamic cyclic stress ratios are applied to the soil body samples, the frequency of dynamic cycle and loading time are controlled, and a dynamic stress-strain change rule curve and a cyclic strength change rule curve are obtained; according to the dynamic stress-strain change rule curve and the cyclic strength change rule curve, a sandy soil dynamic strength-deformation and pore water pressure growth mode theoretical model is established, horizontal force and vertical force are applied to the pipeline, the size of constraint force of a sandy seabed on the embedded submarine pipeline is further obtained according to a load-displacement relationship, and a basic theoretical method is provided for design of embedding the pipeline in the seabed and evaluation of stability.

A head and neck restraint device controls the motion of the head and forces exerted upon the neck of a seated occupant in a decelerating vehicle. A body defines a collar, right and left legs and right and left wings. The collar is tethered to the helmet. Each leg has belt interaction surfaces that provide a friction action on the shoulder straps. Left and right extensions or wings residing under the shoulder strap rearward of the legs provide a restriction of rotation of the body and thus a binding action on the shoulder straps. A cantilever action is induced in generally forward impact by the tethers pulling on the collar of the body and the binding action on the shoulder straps reducing the forward motion of the body. The present restraint device does not attach to the structure of the vehicle, allows travel thereof with respect to the seated occupant, yet controls the motion of the occupant's head in order to substantially reduce neck loads on the occupant. Moreover present restraint device is not in contact with the occupant during normal operation and thus does not induce discomfort or fatigue. Under general forward impact conditions, the occupant's head motion is controlled with respect to the torso, yet the device will restrictively move with the driver's head and torso along shoulder straps of a seat harness of the vehicle.

The invention provides an aptamer electrochemical sensor for detecting malachite green (MG). A preparation method for the electrochemical sensor comprises the steps of: the prepared graphene-chitosan compound and nanogold are modified on an electrode surface, an aptamer is connected on the nanogold through chemical action, a target object is bound onto the electrode surface through the specific binding action of the aptamer and the target and then connected with an antibody of the target object, thus constructing the biosensor with a sandwich structure. When the detected solution contains the target object, a certain amount of target objects and corresponding antibodies can be fixed on the electrode surface, so that a sensing structure is formed. Horseradish peroxidase (HRP) is modified on the antibodies, and the hydrogen peroxide can be catalyzed to be decomposed, so that the change of an electrochemical signal can be generated, and the detection on the MG can be realized through the change of the electrochemical signal. The prepared aptamer electrochemical sensor is strong in selectivity, high in sensitivity, simple and fast to operate, and suitable for detection on the MG of aquatic products.

The invention discloses an adaptive spiral walking pipeline robot which comprises a spiral walking device, a drive steering mechanism, a guide supporting device and a control system. The spiral walking device and the guide supporting device are positioned at two ends of the drive steering mechanism, the control system is electrically connected with the spiral walking device, the drive steering mechanism and the guide supporting device, both the spiral walking device and the guide supporting device comprise supporting wheels, link mechanisms, supporting disks and servo motors, the supporting wheels are connected with the servo motors through the link mechanisms, and the supporting wheels, the link mechanisms and the servo motors are integrally positioned between the supporting disks. By binding action of the spiral walking device and the guide supporting device with the steering mechanism, the problems of difficulty in pipeline operation and poor adaptability of a pipeline robot for different pipelines in the prior art can be effectively solved, and labor is greatly reduced. Operation safety and use values are improved, and the adaptive spiral walking pipeline robot is simple in structure and low in use cost.

A pivoting magnetic binding system for sports boards offering a self-acting binding action that allows rider and board to move in unison. A pivoting action mitigates dynamic movement of the user upon the sports board while maintaining firm contact to the board through magnetic attraction. Vertical liftoff, lateral sliding and torque rotation of the magnet offer mechanisms for separation at the rider's will or during an inadvertent fall.

The invention relates to a heat dissipation device, in particular to an omnidirectional heat dissipation device for electric heating equipment. The technical problem to be solved by the present invention is to provide an omnidirectional cooling device for electric heating equipment. In order to solve the above technical problems, the present invention provides such an all-round cooling device for electric heating equipment, including a processing box, etc.; a first elastic member is connected between the bottom of the baffle and the inner wall of the processing box, and a rotating device is provided at the bottom of the processing box And the blowing device, the rotating device is located on the right side of the blowing device, the top of the rotating device is provided with a placement plate, and the top of the placing plate is provided with a placement slot. In the present invention, through the combination of the rotating action of the rotating device and the blowing action of the blowing device, and the cooperation of the electric winding wheel, the pull wire and the second fan, the device can dissipate heat in all directions for the electric heating equipment.

The invention discloses a method for culturing halophilic granular sludge, and belongs to the field of biological treatment of sewage. The principles of the invention are as follows: (1) water inflowload is rapidly increased, and EPS secretion of halophilic microorganisms is stimulated. The microorganisms grow in an attached manner through the binding action of EPS, and mature halophilic active granular sludge is formed under the action of hydraulic shearing force; and (2) long precipitation time and short precipitation time act in a combined manner. At the long precipitation time in the early stage, growth of the halophilic microorganisms in a reactor is achieved; and at the short precipitation time in later stage, selective pressure is provided for granulation. According to the halophilic active granular sludge formed by culture in the invention, sludge sources are various, the technology is simple, the salinity tolerance range is between 1% and 10% due to the fact that the enrichedmicroorganisms come from the halophilic flora of settled sludge at a sea inlet, and a compact morphological structure can be kept. The precipitation time is greatly shortened, the treatment period iseffectively shortened, the treatment effect is guaranteed, rapid treatment of the high-salt wastewater is realized, the short-cut nitrification is realized, and the energy consumption is reduced by 30%.

An AlMgB14-TiB2/Ti gradient functional composite and a preparation method thereof belong to the technical field of composite preparation. One side of a gradient material is provided with Ti metal material, and the other side is provided with AlMgB14 ceramic material; TiB2 powder is added into the AlMgB14 ceramic powder to form three intermediate layers; from a Ti rich direction to an AlMgB14 richdirection, the hardness and strength of the composite are significantly improved, antioxidant and high-temperature-resistant properties are improved, and wear resistance and elastic modulus are gradually increased; from AlMgB14 rich direction to the Ti rich direction, toughness, electrical conductivity and heat conductivity are significantly improved. Through the transition of the TiB2 material, binding action between AlMgB14 and Ti is enhanced, and the toughness, shear strength and crushing strength of the composite are improved. A silicon carbide ceramic mold used herein allows sample blanksto be uniformly generated and current to be centrally distributed, inter-powder interfacial reaction strength is guaranteed, diffuse sintering process is promoted, and sample preparation time is shortened.

The invention discloses an anti-buckling low-frequency vibration isolation rubber support comprising a rubber support body and anti-seismic casing pipes arranged in the rubber support body. Laminatedrubber is adopted for the rubber support body. The low rigidity required by low-frequency vibration isolation is achieved by increasing the thickness of the rubber. The anti-seismic casing pipes are embedded in the support in the vertical direction and sequentially penetrate through the rubber support body from top to bottom, a restraining effect is achieved for the high-flexibility rubber supportbody in the horizontal direction, an anti-buckling function is provided for the rubber support body under the vertical large-load effect, and a horizontal earthquake resistance function is also provided for the support. Rubber layers or isolation gaps are arranged between the anti-seismic casing pipes and the rubber support body or between the anti-seismic casing pipes to avoid rigid contact, andthe environment vibration spreading route achieved through a rigid contact face is isolated. By means of the anti-buckling low-frequency vibration isolation rubber support, low-frequency vibration isolation of environment vibration can be achieved, high bearing stability and anti-seismic capacity can also be ensured, and the anti-buckling low-frequency vibration isolation rubber support can be used for vibration isolation of civil engineering structures and all types of instruments and equipment.

The invention provides an automatic opening binding device having a nail producing function and with high automation degree. The automatic opening binding device comprises a support leg, a chassis fixed above the support leg, a guide rail fixed on the chassis, a slide platform sliding on the guide rail, a slide cylinder for driving the slide platform to slide, a bag gathering mechanism for gathering a bag opening, a wire feeding mechanism, a nail producing mechanism for cutting off and bending a wire, and an opening binding mechanism for pushing a produced nail to an opening binding position for opening binding; and the bag gathering mechanism, the wire feeding mechanism, the nail producing mechanism and the opening binding mechanism are all arranged on the slide platform. The automatic opening binding device has the nail producing function, and can gather a plastic bag needing to bind an opening; and a machine head can move to an opening binding position to finish an opening binding action, so that the automation is easy to realize; and the number of aluminum wires is big, so that an aluminum wire disc has no need to frequently replace.

The invention discloses a method for immobilizing polyphenol oxidase by taking duolite as a carrier. The current carries for immobilizing polyphenol oxidase are mainly sodium alginate and chitosan, can realize that enzyme molecules are insoluble in water and achieve the immobilized effect of the enzyme molecules, but increase a steric clash for binding action of the enzyme molecules and a substrate and reduce the catalytic efficiency of enzyme. The invention is characterized in that activation is carried out on the duolite by employing a sequence of acid washing- alkali wash-acid washing; then a zymoprotein solution is added to carry out absorption immobilization in a constant-temperature shaker; then a cross linker is added to carry out crosslinking; then the mixture is filtered and washed by a buffer liquid to obtain micro-spherical grains, which namely are the immobilized polyphenol oxidase with high enzyme activity. The invention reduces the steric clash for the action of the enzyme molecules and the substrate, and has high catalytic efficiency of enzyme.

The invention discloses a preparation technique of iron ore pellets, which comprises the following steps: (1) adding 0.5-1% of bentonite to iron concentrate, evenly mixing to obtain a mixture of which the water content is 1-3% lower than the propery pelletizing water content, pelletizing with a disk pelletizer or drum pelletizer, and when seed pellets grow into pellets with the diameters of 8mm or so, spraying fiberized bentonite in the pellet growth region to continue pelletization until qualified green pellets with the diameters of 12-16mm are obtained; and (2) the fiberized bentonite is prepared by the following steps: bentonite and a CMC (carboxymethyl cellulose) solution are mixed, so that smectite molecules in the bentonite sufficiently absorb water and expand under the actions of water molecules and CMC molecules under the action of mechanical stirring force, and spread to be compounded with the CMC molecules, thereby preparing the fiberized bentonite. The fiberized bentonite is atomized and sprayed to the pellet growth region to efficiently act on the iron concentrate granule surface and fully display the binding action, thereby obviously enhancing the quality of the green pellets and the strength of the preheated pellets and roasted pellets.

The invention provides a grape vine binding simulation training system and method. The system includes: a three-dimensional scene building module used for building a three-dimensional scene of a grape garden which includes a three-dimensional form model of a grape plant; a gesture acquisition module used for acquiring gesture motion information of a user when performing vine binding operation in the three-dimensional scene of the grape garden built by the three-dimensional scene building module; a vine deformation motion simulation module used for simulating three-dimensional motion of vine deformation in the vine binding process of the user according to the gesture motion information; a central processing module used for comparing the three-dimensional motion of vine deformation with prestored three-dimensional motion of vine deformation to judge whether vine binding actions of the user is correct; and a result output module used for outputting a corresponding vine binding result prompt message according to a processing result of the central processing module. The grape vine binding simulation training system provided by the invention solves the problem in the prior art that artificial on-site vine binding training is influenced by time and operation.

The invention relates to the technical field of shield tunnel construction, in particular to a fixing device and construction method for controlling floating of shield tunnel segments. The fixing device comprises multiple anti-floating piles successively arranged in the shield tunnel route direction. Each anti-floating pile extends towards one side of a tunnel from the upper side of the tunnel inthe radial direction of the tunnel, so that the shield tunnel segments, after being installed, are constrained under the anti-floating piles. The anti-floating piles are arranged on the shield tunnelroute, so that after the shield tunnel penetrates through the anti-floating piles, spacing between the shield tunnel segments and the anti-floating piles is only gap spacing between a shield machine outer diameter and the segment outer diameter. When the segments deviate from a shield tail and before slurries solidify, the anti-floating piles generate binding effects on the floating of the segments. Good binding effects on the shield tunnel segments are formed by using frictional force between the anti-floating piles and the mudstone stratum, so that the floating of the shield tunnel segmentsis controlled. The anti-floating mode is simple and practicable, easy to operate and control, low in cost, short in construction period, and good in application and popularization value.

The invention discloses a method for efficiently treating a perfluorinated compound polluted water body, and belongs to the field of degradation of persistent pollutants. An indole derivative which iselectropositive or electrically neutral in water is utilized to enhance the binding action with the PFCs of anions, thereby enhancing the reaction efficiency of the generated hydrated electrons and PFCs, promoting the degradation and defluorination of PFCs, the method solves the problems of low degradation efficiency, harsh reaction conditions, need of adding other exogenous substances and the like in the existing PFCs degradation method, does not cause secondary pollution to the environment, and has high application value.

A microarray chip for detecting cells or microbes is composed of a substrate as carrier and many molecular probes which have specific binding action to the cells to be detected and are arranged in different areas according to different cells to be detected. Its advantages are only need of one sample, high speed and low cost.

The invention discloses a secondary sizing production process for bionic bait and relates to the technical field of bionic bait. The process comprises granulation, injection molding, glue smearing andsecondary sizing. Modified glue is prepared by asparaginic acid grafted modified polyvinylalcohol. The glue has relatively good binding action to follow-up color and pattern treatment of the bionic bait and meanwhile, the bionic bait can be also prevented from being heated in an oven to deform and shrink, so that the stability of the bionic bait is maintained. After the bionic bait is primarily sized, the bionic bait is heated and sized secondarily. As the bionic bait is not constrained by a mold in secondary sizing, deformation stress is eliminated and released, and the using efficiency andquality of the bait are improved.