108 results about "Surface loading" patented technology

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

Filter media and filter structure or media pack can be engineered to exhibit high initial efficiency and to surface load particulate removed from a gaseous stream. The filter technology protects engine operation from ingested particulate and accumulates the particulate as a surface loaded layer visible on the surface of the structure. The particulate accumulates as a surface loaded layer until it achieves a certain depth of particulate or gray scale characteristic or color depth indicative of the end of the useful life of the filter prompting a change of the filter structure. The filter structure is characterized by its ability to surface load particulate, avoid accumulation of particulate in the depth media and enhance the characteristics of the material through surface loading. Such technology is particularly useful in light duty vehicle maintenance technology.

Constructions and methods are described for collecting particulate material from gas streams. In one specifically described arrangement, a region of depth media is oriented upstream of a second region of depth media. A surface loading media is positioned downstream from the second region of depth media. In an alternate embodiment, a further region of filter media is positioned downstream from the surface loading media.

The invention relates to a cellulose/titanium dioxide/silica aerogel and a preparation method thereof. The method comprises the steps such as cellulose sol preparation, nano-grade titanium dioxide surface loading, silica surface coating, curing, aging, hydrophobizing, bonding forming, drying treatment, and the like. According to the invention, nano-grade cellulose is adopted as a core, and is loaded with nano-grade titanium dioxide; a silica layer is coated; and the steps such as curing, aging, hydrophobizing, bonding forming, drying treatment, and the like are carried out, such that the cellulose/titanium dioxide/silica aerogel is obtained. The aerogel has the performances such as flexibility, high strength, bacterium resistance, ultraviolet resistance, odor-removing function, warm-keeping function, thermal insulation, and sound insulation. The aerogel can be widely applied in the fields such as thermal underwear, body armor, insulation materials, pressure-resistant materials, special coatings, aerospace materials, and the like.

An antenna assembly (30) for a communication device (20) includes a feed structure (25), which has front and rear sides (26, 27), and which is coupled to be driven by the device so as to radiate an electromagnetic field in a given frequency band. An electrically reactive surface (28) is positioned adjacent to the rear side of the feed structure so as to define a cavity (35) between the feed structure and the reactive surface, thereby substantially nulling the electromagnetic field on the rear side of the feed structure.

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

The invention discloses a preparation method of a catalytic activity nano particle loaded absorbent, which comprises the step of: with a plurality of kinds of absorbing agents as carriers, surface-loading metal oxide nano particles with catalytic activity to obtain the efficient catalytic activity absorbent in sewage treatment. The invention also discloses an absorbent prepared by using the method and application thereof in the posttreatment of organic phosphorus containing sewage. The absorbent achieves the purpose of synergism of catalysis and absorption through carrying out catalytic oxidization reaction on the surface-loaded nano particles, thereby overcoming the problems of low capacity and difficult desorption of the traditional physical absorbing process and easy loss of components of catalysts in the high-grade oxidization technology in the sewage treatment, remarkably improving efficiency of removing the absorbent, and reducing process links and steps. The absorbent has wide application prospect on the aspects of domestic sewage purification, chemical plant sewage treatment, catalytic degradation of toxic substances in the sewage, and the like.

The invention discloses a broadband circular polarization high-gain low-profile micro-strip slot antenna capable of loading a hyper-surface; the broadband circular polarization high-gain low-profile micro-strip slot antenna can realize circular polarization radiation at a frequency band being 5.1-6.3GHz. The broadband circular polarization high-gain low-profile microstrip slot antenna sequencially comprises an upper-layer dielectric substrate (2), a metal copper grounding plate (3) with a seam, and a lower-layer dielectric substrate (4) which are in tight contact from top to bottom, wherein a metal paster set (1) is arranged on the upper surface of the upper-layer dielectric substrate (2); the lower surface of the lower-layer dielectric substrate (4) is provided with a coplanar waveguide feeding structure (5). According to the broadband circular polarization high-gain low-profile microstrip slot antenna, the metal paster set and the upper-layer dielectric substrate form a hyper-surface structure, so that conversion from linear polarized waves to circular polarized waves is realized; the coplanar waveguide feeding structure and the metal copper grounding plate jointly form a coplanar waveguide with a floor for feeding to the antenna from a signal conduction band. A hyper-surface loading technology is adopted based on the micro-band seam antenna, and the coplanar waveguide is utilized for feeding, so that the antenna has the advantages of circular polarization characteristic, high gain and low profile within a broadband, is simple in structure, and is convenient to process.

The invention discloses a multi-control-surface aircraft modal calculation and verification method. An aircraft control surface transmission mechanism finite element model is established with an equivalent-rigidity method, a full-aircraft finite element model is established with a finite element model assembly method, and main modal characteristics of an aircraft are predicted; a stepping sine scanning method is adopted for carrying out modal tests for verification, and the problem that in a multi-control-surface aircraft modal test, because connecting gaps exist between control surface mechanisms, modal stability is influenced is solved. A control surface loading method is adopted in the method, control surface mechanical gaps are eliminated, and modal frequency instability and modal resonance instability are eliminated. The method effectively verifies scientificity of a modal prediction method, and meanwhile, the modal instability is effectively eliminated through the control surface gradual loading method.

The invention discloses an automatic control system and an optimal trajectory planning method of an intelligent excavator. The system comprises a data acquiring and executing module, a network, a processor and a storage device; and the data acquiring and executing module comprises a 3D scanner, a power sensor, a proximity sensor, a displacement sensor, an angle sensor, a torque sensor, an information device, a controller, the processor, the storage device and a wireless transceiver. According to the automatic control system and the optimal trajectory planning method of the intelligent excavator, because the 3D scanner is adopted to determine the contour of the surface of a to-be-excavated material, the coordinate matrix of the contour is obtained through the processor, and therefore accurate modeling is performed on a material pile, and accurate prediction on the surface load of the excavated complex material pile is achieved. According to the automatic control system and the optimal trajectory planning method of the intelligent excavator, because the information device and the processor are used for optimizing control parameters in the excavating process of the excavator, the purposes that the excavating load is minimum, and the excavating energy consumption is lowest are achieved. According to the automatic control system and the optimal trajectory planning method of the intelligent excavator, the accuracy of a load predicting algorithm is improved, and accurate prediction on the excavating load is achieved.

The invention discloses an earth pressure balance (EPB) shield residual soil pressure control model test apparatus. The model test apparatus mainly comprises a truss type loading system, a cutterhead, a sealed compartment, a screw conveyer and a pressure transducer system. The truss type loading system is connected with a reaction frame through a jack. Excavation surface loading can be realized by thrust of the jack. The cutterhead and the screw conveyer are driven by a motor. The pressure transducers are arranged on different positions of a sealed compartment separator plate and a screw conveyer housing. Pressure data is monitored by PC software through data an acquisition instrument. By using the apparatus, under the conditions of different modified residual soil, different sealed compartment pressure or different screw conveyer rotating speeds, and through monitoring typical position residual soil pressure of the sealed compartment separator plate and the screw conveyer, residual soil pressure transmission mechanism in the earth pressure balance (EPB) shield sealed compartment and the screw conveyer can be verified; a mapping relation between excavation surface pressure and thesealed compartment separator plate pressure and a pressure variation relation between an inlet and an outlet of the screw conveyer can be established. Therefore, an earth pressure balance (EPB) shield construction can be guided.

A panel filter is provided. The panel filter can have extended life or higher dust holding capacity by one or more of the following provisions of (a) placing the dimpled pattern (compressed region) on the downstream side and outlet face of the media, (b) using the dimpled media in combination with adhesive spacers and embossments, (c) selection of a media that is depth loading rather than surface loading, (d) operating the pleater/embossing assembly in a manner so as to maintain integrity of the dimples and/or other features as described herein.

In a deviated wellbore, a pump system computes downhole data from surface data by solving a wave equation that takes both viscous damping and Coulomb friction into consideration. Mechanical friction between the rods, couplings, and tubing is considered in the calculation of downhole data in the deviated wellbore by modelling the wellbore's trajectory, parameterizing various deviated segments (build-ups, slants, drop-offs, etc.) in the trajectory, mapping the rod string to the segments, and incrementally evaluating position of the mapped string over time in order to compute drag forces and side loads experienced by the rod string during operation. These computed drag forces and side loads are then used in the solution of the wave equation to solve the surface load and position data and provide more accurate downhole position and load data.

The invention relates to a vibration and loading combined device of a steering engine room, and belongs to the technical field of spacecraft controllers. The combined device is capable of control surface loading and vibration clamping of a spacecraft. The device is composed of a vibration tool and a torsional moment loading tool. The vibration tool as a clamp can fix the steering engine room to avibration table by switching. Four elastic rod assemblies are mounted on the vibration tool, and elastic torsional moment loads are applied to four steering engines in a stern room simultaneously viatorsinoal deformation of elastic rods. The vibration and loading combined device is characterized by being multifunctional, low in cost, easy to dismount, simple in structure, smooth in load output, consistent in elastic coefficients, and the like.

The invention discloses a clamping device for anti-eccentric loading of double-shearing experiment. The clamping device comprises two combined loading heads with the same structure, and each combinedloading head comprises a fork clamp, a flying ring and a bolt pin connecting device, wherein a straight bar part clamped by a tester is arranged at one end of the fork clamp, an open slot is formed inthe center of the other end of the fork clamp along the axis of the fork clamp, one end of the flying ring is coaxially hinged into the open slot of the fork clamp by the bolt pin connecting device vertically running through the fork clamp, and a threaded hole is formed in the other end of the flying ring. The invention also discloses a clamping method for anti-eccentric loading of double-shearing experiment. The clamping device and the clamping method disclosed by the invention can automatically counteract torque caused by clamping a test piece with the tester while the test piece is installed, balance bending moment caused by manufacture error, and prevent the test piece from being twisted and/or being bent due to eccentric action, so as to eliminate the influence of eccentric loading to result of intra-surface loading experiment, ensure a pure shearing loading state and realize pure double-shearing experiment.

The invention discloses an MOCVD (metal organic chemical vapor deposition) reactor and a support shaft for the MOCVD reactor. The problems that an inner ring heater is low in power utilization ratio, a load of the surface of the inner ring heater is high, and a cooling requirement below the support shaft is high due to the fact that the available support shaft is large in heat conductivity coefficient, and the heat transmission capacity of a slide glass disk to the support shaft is great are solved. The support shaft for the MOCVD reactor comprises a support shaft bottom, a support shaft middle and a support shaft top, wherein the support shaft top, the support shaft middle and the support shaft bottom are fixedly connected; gas channels are communicated among the support shaft bottom, the support shaft middle and the support shaft top; the support shaft top is frustum-shaped, and is provided with a connecting ring; a fixed cover plate is mounted at the top of the connecting ring; and a heat insulation cover plate is mounted at the top of the fixed cover plate. According to the MOCVD reactor and the support shaft, the service life of the inner ring heater is prolonged; the normal working time of equipment is prolonged; the complete power is reduced; and an energy-saving effect is improved.

The invention discloses a variable-scale driving bionic dry adhesion mechanism. The mechanism comprises a wedge-shaped seta beam unit, a tangential loading unit, a variable-scale driving transmissionunit, a normal driving unit and a supporting outer frame, the wedge-shaped seta beam unit is used for contacting and adhering a target object, the tangential loading unit is used for carrying out tangential loading/unloading on the wedge-shaped seta beam, the variable-scale driving transmission unit transmits the driving displacement and the driving force to the tangential loading unit, the normaldriving unit serves as an active driving source of the mechanism and is used for loading/unloading the variable-scale driving transmission unit, and the supporting outer frame is used for supportingthe whole mechanism and keeping the relative positions of all parts of the whole mechanism. According to the variable-scale driving bionic dry adhesion mechanism, a traditional point loading mode is converted into a surface loading mode, stable tangential loading/unloading of the wedge-shaped seta beam under micro-displacement is realized through a variable-scale driving principle, so that the application requirements of space fragment cleaning and flexible circuit board nondestructive operation are met.

The invention discloses a double-coated diaphragm applied to a lithium-selenium disulfide battery and a preparation method and an application thereof and belongs to the technical field of a new material. The method comprises steps that 1), 1,3,6,8-tetra(4-formaldehyde phenyl)anthracene, p-phenylenediamine, dioxane and acetic acid solution are taken to achieve reaction to obtain PA-COF, which is araw material of coating A; 2), the PA-COF obtained in the step 1), water binder and n-propanol water are thoroughly mixed to obtain slurry A; 3), TiO2, conductive carbon black, water binder and n-propanol aqueous solution are uniformly and fully mixed to obtain slurry B; and 4), the slurry A and the slurry B are respectively applied to both sides of the battery diaphragm, dried and cut into a wafer to obtain a double-coated diaphragm. The method is advantaged in that the double-coated diaphragm is utilized in the lithium-selenium disulfide battery having surface loading of 2mg/cm<2>, the chemisorption effect of TiO2 effectively inhibits generation of the shuttling effect and the protection effect of a covalent organic framework on a lithium negative electrode to avoid generation of lithiumdendrites, and cycle stability of the battery and the specific capacity of the battery are effectively improved.

The invention discloses an integrated water purifier. The integrated water purifier comprises an integrated water purification filter element, a water production connecting pipe and a casing. filtration of the integrated water purification filter element includes two stages, a first stage is ultrafiltration, and suspended substances, particles and colloidal substances are effectively intercepted and bacteria and viruses are filtered; a second stage is photocatalyst coating loaded composite ceramic filtration, active carbon nanoparticles are added to the filtering layer, and the filtering layer is uniformly distributed in the filter element and subjected to high-temperature sintering molding; on one hand, the cutoff phenomenon of water flow is eliminated, on the other hand, efficient filtering and adsorbing functions are realized, pollutants such as organic matter, heavy metal ions and the like in water are effectively adsorbed, and meanwhile, the composite ceramic filter element after subjected to silver-loaded treatment and surface loading of titanium dioxide is used for performing photo-catalytic oxidation under the action of an ultraviolet lamp so as to decompose pollutants thoroughly, inhibit bacteria and avoid photoreactivation of microorganisms.

The invention provides a gadolinium-doped monolayer hydrotalcite used for drug loading and a preparation method thereof. The control for crystal form is realized by adopting sodium nitrate, the control for the thickness of a synthetic hydrotalcite nanosheet is realized through formamide, the monolayer hydrotalcite with the thickness of about 1 nm is obtained, the specific surface area of the gadolinium-doped monolayer hydrotalcite is improved, and then the surface loading capacity of the gadolinium-doped monolayer hydrotalcite as a drug carrier is improved, so that the pesticide effect is improved. The invention also provides the application of the gadolinium-doped monolayer hydrotalcite in the preparation of anti-cancer drugs. By adopting the gadolinium-doped monolayer hydrotalcite provided by the invention as the drug carrier, the loading capacity of the drug reaches up to 790% to 799% at most, and the pesticide effect can be improved obviously. The anti-cancer drug provided by the invention is a nanometer composite material obtained by loading active ingredients of the drug onto the gadolinium-doped monolayer hydrotalcite; and the active ingredients of the drug comprise adriamycin and/or indocyanine green.

The invention discloses a high-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and a preparation method thereof. Two-dimensional molybdenum disulfide isuniformly dispersed in cysteine/cystine tetrabutyl phosphonium salt binary ionic liquid to form uniform and stable suspension, and the surface of a metal substrate is uniformly coated with the suspension. According to the preparation method, the two-dimensional molybdenum disulfide and the binary ionic liquid are combined, the two-dimensional molybdenum disulfide has a layered structure, the ionic liquid has a low shearing rate characteristic, the surface loading capacity of the composite lubricating membrane containing sulphur element formed by the synergistic reaction of the two-dimensionalmolybdenum disulfide and the ionic liquid can be improved, and the friction reducing and resisting performance and self lubricating performance of the surface are enhanced. Compared with a traditional ion lubricant and a molybdenum disulfide solid lubricant, the friction wearing coefficient and loading capacity of the metal substrate and the surface of the metal substrate can be improved.

A method of determining in-situ a relation between the seismic velocity and the state of stress in an underground formation located under a surface subjected to time-changing surface loading conditions. A relation is selected between the seismic velocity and the state of stress containing at least one unknown parameter. A seismic source is arranged at surface or in a borehole penetrating the underground formation, and a seismic receiver is arranged at a distance from the seismic source at surface or in a second borehole. At two different times the seismic velocity of the formation along a path from the seismic source to the seismic receiver is determined. The difference in surface loading conditions at the two times is converted in a difference in states of stress in the underground formation. The unknown parameter(s) are calculated to obtain the relation between the seismic velocity and the state of stress in the underground formation.

The invention relates to an anaerobic reactor for treating waste water containing emulsified liquid. The height-diameter ratio of a tank body is greater than 3; an inlet water distributor is arranged at the bottom part of the tank body; the anaerobic reactor is provided with a granular sludge region which is suspended at the lower part of the tank body and a floccus sludge region which is suspended at the upper part of the granular sludge region; the surface loading of a deposit chamber of a triphase separator is not higher than 0.5m<3>/m<2>.h; and an outer circulating system is adopted. Because of the coexistence of the granular sludge region and the floccus sludge region of the anaerobic reactor, the COD (chemical oxygen demand) removal rate of the waste water containing the emulsified liquid is improved to more than 60%, the subsequent waste water processing technology pressure is reduced, the total effluent quality of a whole waste water treating system can reach the standard, and the operation cost of the whole waste water treating system is lowered.

The invention relates to a frame strength test device based on a center pin loading mechanism, belonging to the field of a force loading device for frame strength tests of railway vehicle bogies. Theframe strength test device based on a center pin loading mechanism comprises a simulation center pin loading mechanism, a universal spherical bearing, a transverse stop spherical bearing, two stop seat rubber pads, two force-measuring type traction rods, two transverse force loading actuators and a longitudinal counter-force rod, wherein the simulation center pin loading mechanism comprises a tubular core barrel, a force-measuring traction rod seat, a transverse force symmetrical slope surface loading seat, a counter-force rod loading hinge shaft seat and a transverse stop spherical bearing. The device has the advantages of exquisite structure, compact layout and easy assembly, operation and maintenance; the device can not only avoid the problems of component blocking interference and large time lag error of a load cell, but also greatly save the manufacturing cost, increase the test precision and improve the production efficiency.

The invention discloses a novel comprehensive processing technology of desulfurization wastewater. The technology comprises the following steps: introducing wastewater from a desulfurization system to a wastewater buffer tank (4) through an inlet pipe (1); lifting the wastewater in the wastewater buffer tank (4) to a neutralizing tank (9) through a lifting pump (3), adding a lime solution into the inlet end of the neutralizing tank (9) through a lime feeding pump (7) to adjust the pH value of the wastewater to around 9.0; and the input end of the lime feeding pump (7) is connected to a lime solution dosing tank (6). The system is provided with a two-stage clarifying device, each stage clarifying device can be individually designed according to the water quality of the inlet water, the surface loading of the two-stage clarifying device can be increased by 20 to 30%, so the two-stage clarifying device is more efficient than that of the conventional single-stage clarifying device.