64results about How to "High quality material" patented technology

A method for fabricating a semiconductor substrate includes epitaxially growing an elemental semiconductor layer on a compound semiconductor substrate. An insulating layer is deposited on top of the elemental semiconductor layer, so as to form a first substrate. The first substrate is wafer bonded onto a monocrystalline Si substrate, such that the insulating layer bonds with the monocrystalline Si substrate. A semiconductor device includes a monocrystalline substrate, and a dielectric layer formed on the monocrystalline substrate. A semiconductor compound is formed on the dielectric layer and an elemental semiconductor material formed in proximity of the semiconductor compound and lattice-matched to the semiconductor compound.

The present invention discloses a micro / nanostructure PN junction diode array thin-film solar cell and a method for fabricating the same, wherein a microstructure or sub-microstructure PN junction diode array, such as a nanowire array or a nanocolumns array, is transferred from a source-material wafer to two pieces of transparent substrates, which are respectively corresponding to two electric conduction types, to fabricate a thin-film solar cell. In the present invention, the micro / nanostructure PN junction diode array has advantages of a fine-quality crystalline semiconductor, and the semiconductor substrate can be reused to save a lot of semiconductor material. Besides, the present invention can make the best of sunlight energy via stacking up the solar cells made of different types of semiconductor materials to absorb different wavebands of the sunlight spectrum.

A protective sheath for a disposable surgical scalpel includes at least three modes of operation, (i) a protective mode, (ii) an open mode, and (iii) a permanently locked mode. In the open mode, a locking strip of the scalpel handle resides in one opening of the sheath to keep the sheath substantially immobile during use of the scalpel blade. In the protective mode, the locking strip resides in a second opening of the sheath to keep the sheath substantially immobile when the scalpel blade is not in use. In the permanently locked mode, a button connected to the sheath is depressed into the second opening and engages the locking strip, thereby preventing the blade from being used and allowing the scalpel to be safely disposed.

A pipe lining material comprising an inner lining material and an outer lining material is used to rehabilitate an aged existing pipe. The inner lining material and the outer lining material are made of a tubular resin-absorbent material that is impregnated with a photo-curing resin and a thermosetting resin. The resin-absorbent material of the inner lining material has a higher density than that of the outer lining material. The photo-curing resin of the inner and outer lining materials is cured by light when the pipe lining material is irradiated with light, and the heat generated when the photo-curing resin is cured cures the thermosetting resin of the inner and outer lining materials. Since the resin-absorbent material of the inner lining material has a high density, voids are less readily formed. Even if voids are generated in the resin-absorbent material of the outer lining material, the voids will be covered by the inner lining material having fewer voids. This ensures that the pipe lining material will have better water-tightness.

A SiC single crystal is grown by physical vapor transport (PVT) in a graphite growth chamber, the interior of which is charged with a SiC source material and a SiC single crystal seed in spaced relation. During PVT growth of the SiC single crystal, the growth chamber further includes Ce. The SiC single crystal grows on the SiC single crystal seed in response to heating the interior of the growth chamber to a growth temperature and in the presence of a temperature gradient in the growth chamber whereupon the temperature of the SiC single crystal seed is lower than the temperature of the SiC source material. The Ce can include either Ce silicide or Ce carbide.

A multi-purpose spring-loaded divot repair tool comprising, in one embodiment, a forked end containing two prongs, a round ball marker, a concave recession, a handle, and a belt clip. The two prongs extend from one end of the handle and are used to repair divots. The round ball marker is located on the handle and is distally positioned to the forked end. Furthermore, the concave recession is proximally located to the round ball marker and distally located to the forked end, such that the concave recession faces upward when the forked end is inserted into the ground. The tool is manufactured from high quality materials. In a further embodiment, a dual acting spring loaded actuation system including spring action in both the deployment and return directions for actuating the forked end.

The invention discloses a paving method of an epoxy terrazzo floor, and belongs to the field of epoxy floors. The hardness, the abrasive resistance, the impact resistance, or the like, of the epoxy floor paved by the disclosed method can hardly meet the application needs synchronously. The paving method of the epoxy terrazzo floor comprises the following steps: firstly, polishing the ground, removing the dust, and coating a priming paint; secondly, ultrasonically stirring epoxy resin, vinyl acetate, phospholipid, aggregate, and nanometer zinc oxide for 10-30 minutes, then adding sodium silicate, epoxy curing agent DMP-30, and defoaming agent therein for being uniformly stirred, and then applying the mixture onto the ground, thereby finishing paving the epoxy terrazzo floor after coarse polishing and fine polishing. The paving method of the epoxy terrazzo floor can be widely applied to the decoration construction of the floor of large-scale public buildings such as airports, hotels, conference centers, and exhibition halls.

A multi-purpose spring-loaded divot repair tool comprising, in one embodiment, a forked end containing two prongs, a round ball marker, a concave recession, a handle, and a belt clip. The two prongs extend from one end of the handle and are used to repair divots. The round ball marker is located on the handle and is distally positioned to the forked end. Furthermore, the concave recession is proximally located to the round ball marker and distally located to the forked end, such that the concave recession faces upward when the forked end is inserted into the ground. The tool is manufactured from high quality materials. In a further embodiment, a dual acting spring loaded actuation system including spring action in both the deployment and return directions for actuating the forked end.

An interactive learning cycle includes an operator, a computer and a pool of images. The operator produces a sparsely-labeled data set. A back-end system produces live feedback: a densely-labeled training set which is displayed on the computer. Immediate feedback is displayed in color on the operator computer in less than about five seconds. A labeling tool displays a user interface and for every labeling project a region is defined that is downloaded as an image data batch. The operator annotates on a per-image basis in the region and uses several UI tools to mark features in the image and group them to a predefined label class. The back-end system includes processes that run in parallel and feed back into each other, each executing a model. A local model is used independently of the global model. The global model accepts sparsely-labeled images from numerous operator computers.

An angle grinder with a housing 2 can be produced more economically by providing that it has a mounting shell 3, a cap shell 4, and an insert part 1 between these two shells. The insert part 1 is equipped with a first fixation device 10 and a second fixation device 11 for fixation between the mounting shell 3 and the cap shell 4, and it has a spindle locking receptacle 12 and spindle bearing receptacle 13. The mounting shell 3 has a first fixation means 30, which is engaged by the first fixation device 10 of the insert part 1. The cap shell 4 has a second fixation means 40, which engages the fixation device 10 of the insert part 1. The insert part 1 also has a second fixation device 11, which can be brought into engagement with suitable means on the mounting shell 3 and the cap shell 4.

The invention discloses a method for acquiring a material flow characteristic at a throttling valve on the furnace top of a blast furnace, which comprises the following steps: by basis physical property parameters of furnace charges, calculating material flow Q of the furnace charges when the furnace charges pass through the throttling valve; by a curve fitting method, acquiring a corresponding relation between the opening degree R of the throttling valve and the material flow Q; and by the corresponding relation between the opening degree R of the throttling valve and the material flow Q, obtaining the opening degree R of the throttling valve, wherein M represents a charge weight and t represents distribution time. The method for acquiring the material flow characteristic at the throttling valve on the furnace top of the blast furnace, which is provided by the invention, not only is beneficial for avoiding the condition that due to distribution segregation, the edge or the center is excessively heavy so as to influence the forward movement effect of the blast furnace, but also is beneficial for selecting a proper and high-quality throttling valve plate material and ensuring long service life and high efficiency use of distribution equipment.

A process for polymerizing propylene in the presence of a polymerization catalyst by polymerizing propylene with a comonomer selected from the group of ethylene and C4-C10 alpha-olefins in two polymerization stages where the comonomer is present in at least one of the polymerization stages. The first polymerization stage is conducted in a loop reactor and the second polymerization stage in a gas phase reactor. The polymer produced in first polymerization stage has a higher melt flow rate and a lower content of comonomer units than the final polymer mixture. The process can be operated with a high throughput and catalyst productivity. The polymers are useful for making films.

The invention relates to the field of wood door manufacturing, in particular to a solid wood composite door anti-deformation processing method. A wood plate is placed into a roller or a vacuum dryer, drying is carried out at the temperature of 60-70 DEG C, moisture of the wood plate can be evaporated comprehensively, the wood plate cannot be damaged, time is saved, superheated steam of 160-220 DEG C is used for carrying out carbonation on the wood plate after drying, accordingly, during the carbonation process of wood, effect is great, the obtained carbonization wood is high in quality, the carbonization wood is high in hardness and high in corrosion resistance, and a machined composite door cannot deform during using.

The invention discloses a sealing structure for a redox flow battery. The sealing structure comprises a positive electrode plate frame and a negative electrode plate frame which are arranged adjacently; a groove is formed in the connecting place between the positive electrode plate frame and the negative electrode plate frame; a square-shaped sealing ring is embedded in the groove; the free thickness of the sealing ring is slightly greater than the depth of the groove; the cross section of the sealing ring adopts a rightward-n-shaped opening structure, and the inner side of the sealing ring is used for enveloping a dual-polar plate; at least two protruding long water lines are correspondingly arranged on the two inner side surfaces and two outer side surfaces of the rightward-n-shaped opening; and the distance between the two water lines which are correspondingly arranged on the upper and lower two inner side surfaces is slightly less than the thickness of the dual-polar plate. The sealing structure provided by the invention can effectively prevent the shortcomings of electrolyte leakage and electrolyte mixing in the existing redox flow battery; and in addition, the sealing structure has the advantages of simple structure, high sealing reliability, good-quality material, feasible process, convenience in installation, stable performance and the like.

The invention relates to bivalent bispecific monoclonal antibodies (bbmAb) or variants thereof, and methods of manufacturing such antibodies by co-expressing modified Fc-5 mutated derivatives of two different monoclonal antibodies in mammalian cell lines.

The invention discloses a harmless resource utilization method of zinc electrolysis acid leaching residue. The harmless resource utilization method comprises following steps: by mass, 60 to 92 parts of fresh zinc electrolysis acid leaching residue, 7 to 38 parts of a silicate powder material or an aluminate powder material, and 1 to 10 parts of a modifier are subjected to mixing, moulding, and curing so as to obtain water-resistant building material products. The harmless resource utilization method is simple and practical; no secondary pollution is caused; heavy metal pollution and hidden danger caused by zinc electrolysis acid leaching residue are eliminated permanently; the harmless resource utilization method is beneficial for water and soil environmental protection; a water-resistant salt corrosion-resistant cementing material and building material products can be produced via effective utilization of zinc electrolysis acid leaching residue; excellent materials are provided for construction work; and environmental source and energy consumption and environmental pollution caused by production process of conventional cementing materials and building material products are reduced greatly.

A method for harmlessly preparing sulfate binding material through electrolysis zinc acid leached residues includes the following steps of firstly, preparing electrolysis zinc acid leached residues, heavy metal ion curing stabilizer and activating agent; secondly, conducting roasting for 15-60 min in the oxidizing atmosphere with temperature of 950 DEG C to 1300 DEG C and excess air coefficient of 1.1-1.8 to prepare cooked residues; thirdly, directly grinding the cooked residues into powder with grain size of 80 microns and screen residue of 12wt% or lower, or grinding 60-99wt% of cooked residues and 1-40wt% of auxiliary materials into powder with grain size of 80 microns and screen residues of 12wt% or lower, and then obtaining the sulfate binding material. The method is simple, practical and free of secondary pollution; water-resistant and salt-corrosion-resistant binding material and building material products are effectively produced through zinc acid leached residues, high-quality materials can be provided for construction work, and the consumption of environment resources and energy and the pollution to the environment in the traditional binding material and building material product production process can be greatly reduced.

A method is proposed for manufacturing a pipe-lining material comprising a tubular resin absorbent material covered with a tube comprised of an airtight plastic film. The tubular resin absorbent material is inserted into the tube, expanded in a columnar shape, and brought into close contact with the internal peripheral surface of the tube. A heater is wound in close contact with the external peripheral surface of the tube thus expanded. The tube and the tubular resin absorbent material are heated by energizing the heater, and the tube is thereby heat-fused to the tubular resin absorbent material. With such a method, a mechanism for moving the tube and the tubular resin absorbent material is not required. In addition, since heat non-uniformities are not generated, the tube can be uniformly heat-fused to the tubular resin absorbent material, thereby enabling a high-quality pipe-lining material to be manufactured.

The invention discloses a short video generation method based on video intelligent identification and intelligent semantic search, which comprises the following steps that a plurality of long videos are imported into a video intelligent identification system, and the video intelligent identification system identifies the content of the long videos by using multi-dimensional parameters; the long video is cut into a plurality of audio and video segments corresponding to different multi-dimensional parameters according to a matching relationship between the content of the long video and the multi-dimensional parameters; the audio and video clips of the multi-dimensional parameters are collected in the same category clip library, and the putting site of each audio and video clip in the same category clip library is accurately positioned according to the classification labels of the multi-level differentiation to generate a plurality of sub-clip libraries; a user selects a plurality of audio and video clips from the sub-clip libraries of different classification labels or the sub-clip libraries of the same classification label through retrieval, and synthesizes the plurality of audio and video clips into a short video according to a sequence. According to the invention, the long video is divided into the short video according to the content classification, and the material content quantity of the short video is improved.

A negative-working lithographic printing plate precursor is disclosed that can be developed on the press without going through a development processing step, and a method of lithographic printing is also disclosed that uses this negative-working lithographic printing plate precursor. A negative-working lithographic printing plate precursor is provided that exhibits excellent on-press developability, nonimage area fine line reproducibility and printing durability and that resists the production of scum during on-press development. The negative-working lithographic printing plate precursor has a hydrophilic support and has thereon a photopolymerizable layer that contains at least one selected from the group consisting of a polymer compound that has an ethylenically unsaturated bond in the side chain position, a hydrophilic group and a sulfonamide group and a polymer compound that has an ethylenically unsaturated bond in the side chain position, a hydrophilic group and a cyclic structure derived from a maleimide. The method of lithographic printing uses this negative-working lithographic printing plate precursor.

The invention discloses an optical fiber multi-aiming press piece slingshot. The optical fiber multi-aiming press piece slingshot comprises a slingshot handle, slingshot supports and an elastic slingshot belt. The optical fiber multi-aiming press piece slingshot is characterized in that a locking connector is arranged at the top end of the slingshot handle, and the slingshot supports are fixedly arranged in the locking connector. Shooting frames are arranged on the tops of the slingshot supports, and clamping grooves are formed in the tops of the shooting frames. An optical fiber long-distanceaiming point and cross short-distance aiming points are arranged in each clamping groove and fixed to the corresponding shooting frame through a moving bolt. The two ends of the elastic slingshot belt are pressed between the optical fiber long-distance aiming points and the rear inner walls of the clamping grooves, and a slingshot head leather block is arranged in the middle of the elastic slingshot belt. The optical fiber multi-aiming press piece slingshot is reasonable in structural design, high in quality of selected materials and exquisite in technology, is integrally made of titanium alloy TC21 materials through cutting, and is high in functionality and free of tying belts. Due to the movable type multi-distance aiming point design, the aiming distance can be longer, the accuracy canbe higher, and the optical fiber multi-aiming press piece slingshot meets the human engineering mechanics, resists abrasion and skid, is easy to operate, saves worry and labor and meets the pleasurerequirements of different shooting enthusiasts.

A warp knitting including a ground organization and a pattern organization is provided. The ground organization includes a mesh forming portion knitted by a plurality of net organizations each having a specific shape, the net organizations being consecutively formed vertically and horizontally throughout an entire width in the longitudinal direction, and a pattern forming portion knitted in a predetermined area of the mesh forming portion where one desires to create the design pattern and overlapping the mesh forming portion to express a predetermined design pattern. The pattern organization is composed of wefts that cross in the transverse direction to cover and overlap the entire surface of the ground organization and are integrally connected to each other to weave the fabric.

An electrographic printing apparatus and an electrographic printing method that prevent base fogging and maintain high quality are provided. The provided electrographic printing apparatus includes a OPC photoreceptor to which a developing device adheres charged toner to an image region of an electrostatic latent image formed on a moving surface; and a non-image-region toner removing device disposed downstream of the developing device in a moving direction of the surface of the OPC photoreceptor and at a position opposing the OPC photoreceptor, wherein the non-image-region toner removing device includes a removing roller that moves close to the OPC photoreceptor and attracts and delivers a carrier by a magnetic force, and a predetermined electric potential is applied to generate an electric field from a non-image region of the electrostatic latent image to the removing roller.

A Si-series composition is proportionally prepared from the oxides of Si, Mg and Al, reinforcing agent (glass fibres), and filler (saw dust and mineral slags) through activating the surface of said reinforcing agent and filler, proportionally mixing them with said oxides and additive, stirring, reaction, moulding, demoulding and curing. Its advantages are excellent performance and low cost.