63results about How to "Increase overall volume" patented technology

The invention discloses a modified metakaolin-based permeation-resistant and crack-resistant agent for concrete. The modified metakaolin-based permeation-resistant and crack-resistant agent for concrete comprises: by mass, 10 to 75% of modified metakaolin, 5 to 40% of fine limestone powder, 4 to 40% of superfine coal ash, 1 to 20% of calcined hydrotalcite, 2 to 40% of fine quartz sand and 0.2 to 20% of solid silane powder. A preparation method of the modified metakaolin comprises the following steps of putting dry and washed kaolin into a bowl mill, carrying out grinding to obtain kaolin powder, carrying out calcination of the kaolin powder at a temperature of 500 to 1000 DEG C for 0.5 to 6.0 hours to obtain metakaolin, putting the metakaolin into a dispersion machine, adding an organic modifier of sulfamate or triethanolamine into the metakaolin, wherein a mass ratio of the metakaolin and the organic modifier is in a range of (5000: 1) to (100: 1), and carrying out dispersion to obtain the modified metakaolin having a contact angle of 50 to 100 degrees and a specific surface area of 8000 to 15000m<2>/kg. The modified metakaolin-based permeation-resistant and crack-resistant agentfor concrete can be utilized as a concrete additive, improves strength of concrete at different ages, does not produce obvious influences on concrete work performances, obviously improves anti-chloride ion penetration capability of concrete, reduces total shrinkage of concrete and improves crack resistance of concrete.

The invention relates to a screening gravel grab bucket. The screening gravel grab bucket comprises a grab bucket, a lower bearing beam, an upper supporting rod, an upper bearing beam, lower supporting rods, a hydraulic cylinder, stirring screening devices and gripper regulating devices; the lower bearing beam is of an inverted U-shaped structure; the lower bearing beam is fixedly connected with the main bucket of the grab bucket; one end of the upper supporting rod is connected with the lower bearing beam by use of a hinge, while the other end of the upper supporting rod is also connected with the upper bearing beam by use of a hinge; the other ends of two lower supporting rods are connected by use of a movable ear seat; one end of the hydraulic cylinder is connected with the movable ear seat, while the other end of the hydraulic cylinder is connected with the upper bearing beam; two stirring screening devices are mounted inside the main bucket of the grab bucket, respectively; two gripper regulating devices are mounted on the front ends of the main buckets of the grab buckets, respectively. The screening gravel grab bucket is capable of removing sediment mixed with gravel by virtue of stirring and screening in the grabbing process, and therefore, the strength of the constructed building can be improved; the gradient of the gripper of the grab bucket is adjustable so that the volume of the gravel grabbed at a time can be increased and the grabbing efficiency can be improved.

The invention discloses a non-planar semiconductor structure and a process for the same. The non-planar semiconductor structure comprises a substrate, at least two fin-shaped structures, at least one insulating structure and a plurality of epitaxial layers. The fin-shaped structures are positioned on the substrate. The insulating structures are positioned among the fin-shaped structures and are provided with nitrogenous layers. The epitaxial layers respectively cover parts of the fin-shaped structures and are positioned on the nitrogenous layers.

The invention discloses a continuous conveying type circular waveguide microwave reactor, belonging to the field of microwave energy application devices. According to the continuous conveying type circular waveguide microwave reactor, a reaction cavity is a cylindrical metal cavity and is divided into two parts along the axial direction so as to mount a conveying belt, and the conveying belt is mounted between the two parts and is driven along the axial direction; support rollers and transmission rollers of the conveying belt are arranged outside the cavity, so that microwave interference in the cavity is avoided; a coupling ring is arranged on the top or bottom of the cavity to achieve the purpose of the invention. Therefore, the continuous conveying type circular waveguide microwave reactor is high in reaction efficiency, reaction speed and reaction uniformity, and energy sources are saved; the continuous conveying type circular waveguide microwave reactor can be applied to large-scale industrial production after being combined with a continuous conveying type production line.

The invention discloses a flexible solar wing unfolding mechanism with a high unfolding-folding ratio. The flexible solar wing unfolding mechanism comprises a bottom plate, a shear fork rod assembly, a top plate and a solar blanket assembly; the unfolding mechanism further comprises a driving assembly integrated on the bottom plate; the driving assembly is provided with a driving motor and a transmission gear, and the transmission gear extends to the upper part of the bottom plate; and the driving assembly is in transmission connection with the shear fork rod assembly through the transmission gear and drives the shear fork rod assembly to be unfolded so as to drive the solar blanket assembly to be unfolded. The unfolding mechanism is simple in structure, high in reliability and small in mass; most structural parts in the mechanism are made of spaceflight-grade hard aluminum alloy and carbon fiber composite materials, the mechanical structure is simple and not numerous and jumbled, and the structural parts are subjected to lightweight design improvement on the premise that the strength and vibration requirements are guaranteed; and the unfolding mechanism is low in manufacturing cost and material price, structural parts are simple in structure and convenient to manufacture, the shear fork rod assembly drives the solar blanket assembly to move, and the unfolding mechanism has the advantages of being light in weight, small in folding size, large in unfolding span and high in unfolding and folding ratio.

An optical scanner for scanning a document includes a housing, a glass platform, an optical scanning module and a heat dissipating member. The glass platform is disposed on the housing for placing thereon the document to be scanned. The optical scanning module is disposed inside the housing for scanning the document. The heat dissipating member is disposed inside the housing and in contact with a first lateral edge of the glass platform for conducting the heat generated from the optical scanning module to the glass platform such that the heat is then radiated from the glass platform to the outside of the housing.

The disclosure features a human milk cream composition, standardized high fat human milk formulations as well as methods of making and using such compositions. In particular, the disclosure features a method of using a human milk cream composition and/or standardized high fat human milk formulations to treat infants with bronchopulmonary dysplasia (BPD) or at risk of developing BPD.

The invention discloses a multi-stage combustion energy-saving environment-friendly burner, and belongs to the technical field of energy conservation and environmental protection. The burner comprises a burner overhaul cover plate, a combustion air inlet, a heat accumulator, a heat insulation material, a fire-resistant pouring material, a large-hole baffle brick, a high-temperature gas distribution chamber, a natural gas sprayer, a primary air spinning disk, an anchoring nail, a primary air inlet, a first connecting flange, a natural gas inlet, a grille plate, a second connecting flange, a bolt connector and a burner installation positioning plate, the burner overhaul cover plate is fixed on a low-temperature gas distribution chamber through the second connecting flange and the bolt connector, a steel pipe of the combustion air inlet is welded on the low-temperature gas distribution chamber, and the heat accumulator is mounted in a heat accumulation burner box. According to the burner, the advantages of air classifying combustion technique are sufficiently played, NOx generation is effectively restrained by the aid of oxygen-deficient combustion mechanism, and the discharge amount of pollutants such as nitrogen oxide is greatly reduced.

The invention relates to an aluminum cable steel reinforced for a power grid overhead transmission line, wherein the aluminum cable steel reinforced is low in cost, large in current-carrying capacity, good in anti-corrosion performance, high in strength, non-magnetic and low in loss. According to the technical scheme of the invention, the aluminum cable steel reinforced for the power grid overhead transmission line comprises a tensile core body and a conductor. The conductor is composed of a plurality of electrical aluminum conductor wires. The aluminum cable steel reinforced is characterized in that the tensile core body is composed of a plurality of non-magnetic stainless steel wires and the steel wires are twisted into strands. The Mn content in the non-magnetic stainless steel of the non-magnetic stainless steel wires is 10-15%, and the Ni content thereof is smaller than 5%. The N content in the non-magnetic stainless steel of the non-magnetic stainless steel wires is 0.3-0.4%. the aluminum cable steel reinforced for the power grid overhead transmission line is applied to the power engineering field.

An yttrium oxide containing environmental-friendly coal-saving synergist is disclosed. The synergist comprises following raw materials by weight: 10-15 parts of yttrium oxide, 2-5 parts of manganese dioxide, 10-15 parts of iron(II) peroxide, 5-10 parts of ferrous oxide, 1-3 parts of sodium carbonate, 1-5 parts of potassium nitrate, 2-5 parts of lignin sulfonate, 5-10 parts of ammonium hydrogen carbonate, 5-10 parts of urea, 1-5 parts of activated carbon, 1-5 parts of diatomite and 2-5 parts of activated aluminium oxide. The synergist has good sulfur fixing effects, a sulfur fixing product is stable and pollutant emission is greatly reduced.

The invention discloses a gas machine tempering simulation experiment device and a use method. The gas machine tempering simulation experiment device comprises a tempering simulation combustion tube, and the lower middle portion of the tempering simulation combustion tube is vertically communicated with a compensation telescopic air cylinder; the upper part of the tempering simulation combustion tube is connected with an electronic throttle valve sample piece, and an igniter and a first air pressure sensor are distributed in the tempering simulation combustion tube; the left end of the tempering simulation combustion tube is connected with a constant-pressure mixed gas supply assembly; a reciprocating plunger, a sliding block, a connecting rod and an adjustable driving rotary disc crank assembly are distributed in the compensation telescopic air cylinder. The device and the method have the advantages that the pressure peak value can be set, the detection result is accurate, the test repeatability is good, and the reliability is high.

An optical scanning module includes a housing, a light source and a first heat-dissipating sheet. The light source is disposed inside the housing for emitting a source light to be projected onto the object. The light source includes an electrode wrapped by an electric-insulating and heat-conducting rubber. The first heat-dissipating sheet is arranged on a surface of the housing and in contact with the electric-insulating and heat-conducting rubber.

A gel pen based on solar illumination solves the problems that a pen refill of an existing gel pen is too small in capacity, the pen refill capacity increasing manner is singular, and the existing gel pen is not provided with a built-in auxiliary light source under the condition that brightness is low. The gel pen based on solar illumination is mainly characterized in that a pen refill is spiral, the length of the pen refill can be increased through the spiral shape, and therefore the capacity and the volume are increased; a pen tail is composed of a small cylinder and a spherical solar cell, and the small cylinder is a carrier of the spherical solar cell; the spherical solar cell of the pen tail is connected to the position of a switch of a pen body and then connected to an LED lamp at the position of a conical pen point through conductive silver adhesives, and when a miniature button is pressed, the spherical solar cell achieves conversion from optical energy to electric energy, and the annular LED lamp can be brightened up; the pen point is rotationally connected with the pen body, and the small cylinder of the pen tail is also rotationally connected with the pen body; and when the pen is not used, a pen cap is installed on the pen, the pen refill is protected through a rubber groove, and the annular solar cell can be charged and store electricity.