97results about How to "Avoid heat treatment" patented technology

Methods and systems for label-free multiple analyte sensing, biosensing and diagnostic assay chips consisting of an array of photonic crystal microcavities along a single photonic crystal waveguide are disclosed. The invention comprises an on-chip integrated microarray device that enables detection and identification of multiple species to be performed simultaneously using optical techniques leading to a high throughput device for chemical sensing, biosensing and medical diagnostics. Other embodiments are described and claimed.

The invention discloses a spherical silicon-oxygen-carbon negative electrode composite material, which is of a three-layer structure comprising an inner layer, an intermediate layer and an outer layer, wherein the inner layer is an SiOx / graphite substrate; the intermediate layer is an amorphous carbon coating layer; the outer layer is a carbon nanotube coating layer; the mass of the inner layer SiOx / graphite substrate accounts for 80%-90% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material; the mass of the intermediate layer amorphous carbon accounts for 5%-10% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material; and the outer layer carbon nanotube accounts for 5%-10% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material. The grain diameter of the adopted SiOx substrate is smaller than 5 microns; the grain diameter is relatively small; intercalation and deintercalation of active substances are facilitated; higher specific capacity can be obtained; meanwhile, a dispersing agent is added when an SiOx sample is ground; and condition that the SiOx with a relatively small grain diameter is agglomerated in quantity to affect the performance is prevented.

A gate structure for a MOSFET device comprises a gate insulation layer, a first layer of a first metal abutting the gate insulation layer, and a second layer overlying the first layer and comprising a mixture of the metal of the first layer and a second metal, the metal layers formed by the diffusion of the first metal into and through the second metal. The second metal can be used as the gate for a n-MOS transistor, and the mixture of first metal and second metal overlying a layer of the first metal can be used as a gate for a p-MOS transistor where the first metal has a work function of about 5.2 eV and the second metal has a work function of about 4.1 eV.

A method for fabricating a carbon nanotube field emitter array is disclosed, which has the steps of (a) providing a substrate; (b) forming a cathode layer having a first pattern on the substrate; (c) forming an opaque insulating layer having a second pattern on the substrate, wherein a predetermined part of the cathode layer is exposed; (d) forming a gate layer having the second pattern on the opaque insulating layer; (e) forming a carbon nanotube layer on the entire top surface of the substrate; and (f) exposing the carbon nanotube layer to a light beam coming from the backside of the substrate.

The invention relates to a method for preparing microcrystalline cellulose at low temperature. The method is characterized by comprising the following steps: (1) completely soaking the cellulose raw material in a soaking solvent, wherein the soaking solvent is water or an acid solution with mass percent concentration not over 15wt% or an oxide solution with mass percent concentration not over 5wt%; (2) freezing the cellulose raw material after the soaking treatment in the step (1), and grinding; (3) performing high-speed shear treatment on the cellulose powder obtained by the grinding in the step (2), and performing aftertreatment on the product after the high-speed shear treatment to obtain the microcrystalline cellulose. The method for preparing microcrystalline cellulose at low temperature provided by the invention can obtain microcrystalline cellulose with different polymerization degrees lower than 350 and relatively high crystallization degree; high-temperature treatment process can be avoided, the energy consumption is low, and the process is simple and green and environment-friendly.

The invention discloses a silica-based perovskite heterojunction solar cell and a preparation method thereof. The silica-based perovskite heterojunction solar cell includes an aluminum electrode, a gold conducting film, perovskite, aluminum oxide, an N-type silicon wafer and a silver electrode arranged from top down, wherein the perovskite is CH3NH3PbI3. Compared with a traditional silica-based heterojunction solar cell material, silica-based perovskite heterojunction solar cell provided by the invention has better electric and optical performance. According to the invention, as to a transmitting electrode of the silica-based perovskite heterojunction solar cell, perovskite can absorb visible light while silicon can absorb infrared light, so that segmented light absorption can be realized and utilization of sunlight becomes more adequate. The invention also discloses a preparation method of the silica-based perovskite heterojunction solar cell.

The invention relates to a method for preparing an aluminum-doped zinc oxide (AZO) transparent conducting film, which comprises the following steps: preparing a spin coating solution from a low-boiling solvent, a stabilizer and a hydrolyzable raw material, carrying out spin coating on a hydrophilic substrate, aging, and carrying out heat treatment and atmosphere annealing to obtain the AZO transparent conducting film. The method provided by the invention has the advantages of accessible raw materials, low cost and environment friendliness, and is simple to operate and suitable for flexible substrates. The invention also relates to an AZO transparent conducting film prepared by the method. The AZO transparent conducting film has the advantages of excellent compactness, low resistivity, adjustable doping rate and film thickness and excellent properties, and has wide application prospects in the field of photoelectricity.

The present invention relates to a method for preparing active humic acid liquor by utilizing alcohol slops of sugar mill, its product and application. The method includes the following steps: clearing alcohol slops of sugar mill, making calcium salt and other non-soluble substances in the slops be precipitated to obtain supernatant fluid, evaporating said supernatant fluid at lowest temp. to obtain concentrated liquor, adding halogen oxide into the concentrated liquor and stirring them in the reactor at room temperature and making activation to obtain the active humic acid liquor. Said invented active humic acid liquor can be directly used as accelerator for accelerating seed germination and rootage, also can be made into various fertilizes for vegetables and fruit tree.

A tea product is prepared from fresh tea leaves through pretreaitng, grinding, adding water, squeezing juice at 20-80 deg.c and 30-50 kg / sq.cm of pressure, filteirng to obtain filtrate, grinding the dregs, adding water, squeezing juice in same condition, filtering to filtrate, merging the filtrate to its liquid tea product, drying until its water content is 20-80 % to obtain tea cream, and spray drying to obtain powdered tea product. Its advantages are less loss of nutrients etc.

A method for fabricating composite light-weighted glass ceramics, suitable for use as, e.g. mirror blanks or microlithography stages, at low temperatures is disclosed. Component pieces are polished then joined at low temperature using a silicate-containing joining liquid. Assembly is then performed in such a way that the joining liquid forms an interface between each component. After a period of low or slightly elevated temperature curing, rigid joints are formed throughout and the composite is dimensionally, vibrationally, and temperature stable and can withstand tensile stresses >4000 psi. The room-temperature cured composite can be heat treated using a slow, systematic temperature increase to dehydrate the joints. A sealing coating may optionally be provided to prevent excess dried joining liquid from flaking off the formed joint.

The invention proposes a carbon-coated ternary material and a preparation method thereof. A ternary material and a carbon material are combined by a mode of ball-milling for many times to form the carbon-coated ternary material. By the carbon-coated ternary material, the thermal processing process under low-oxygen pressure division atmosphere is prevented, the ternary material is prevented from being partially reduced, and damage to electrochemical performance is prevented. The carbon-coated ternary material prepared by the method has favorable electronic conductivity, direct contact between apositive electrode material and an electrolyte can be prevented by carbon coating, the dissolution of transition metal ions is reduced, the oxidization of the positive electrode material on the electrolyte under a charging state is reduced, the corrosion of hydrofluoric acid generated by decomposition of a lithium salt in the electrolyte to a positive electrode is reduced, and the rate performance, the cycle property and the high-temperature storage performance of the positive electrode material are improved.

A method for building two-dimension orderly distributed Si quantum spot graphic nanameter structure is to process a phase-shift grating form board on the film of a-Si or a-SiNx: H / a-Si: H / a-SiNx: H then to crystallize it by laser interference, the laser beam arrives at surfaces of a-Si film or a-SiNx: H / a-Si: H / a -SiNx: H via the form board to form beam spots of two dimension periodic distribution of the energy density to make a -Si: H film to realize localized crystallization, that is to form nanometer Si quantum spot array of two-dimension space orderly distributed in the film.

The method for preparing size-controllable high-density nano silicon quantum point array by laser induction includes: firstly, preparing multilayer modulated structure; using plasma reinforced chemical vapor-phase sedimentation techinque to prepare amorphous silicon orgermaium / amorphous silicon nitride or silicon dioxide single-layer or multilayer modulated structure, in which a-Si:H sublayer thickness is basically in accord with laser crystallized desired quantum point size; then using laser to induce crystallization; the substrate temp. is 150-250 deg.C.

Methods and systems for label-free multiple analyte sensing, biosensing and diagnostic assay chips consisting of an array of photonic crystal microcavities along a single photonic crystal waveguide are disclosed. The invention comprises an on-chip integrated microarray device that enables detection and identification of multiple species to be performed simultaneously using optical techniques leading to a high throughput device for chemical sensing, biosensing and medical diagnostics. Other embodiments are described and claimed.

The invention relates to a method for producing a steel tube, wherein a steel sheet (4) is formed into tubular body (1.2) having a round cross section in a bending process (a), welded in a subsequent welding process (b) along the longitudinal edges facing each other for producing a continuous longitudinal seam, and then subjected to a stress-relieving treatment. The production quality is improved, with reduced production time, in that the stress-relieving treatment is performed in a process (c) for concentrically truing along the circumference in at least one segment relative to the longitudinal axis thereof, while cold forming by compression (FIG. 1). The mechanical technological properties of the material are also thereby improved.

A method of manufacturing a coated reinforcing fiber for use in Ceramic Matrix Composites, the method comprising pre-oxidizing a plurality of silicon-based fibers selected from the group consisting of silicon carbide (SiC) fibers, silicon nitride (Si3N4) fibers, SiCO fibers, SiCN fibers, SiCNO fibers, and SiBCN fibers at between 700 to 1300 degrees Celsius in an oxidizing atmosphere to form a silica surface layer on the plurality of silicon-based fibers, forming a plurality of pre-oxidized fibers; applying a rare earth orthophosphate (REPO4) coating to the plurality of pre-oxidized fibers; and heating the plurality of REPO4 coated pre-oxidized fibers at about 1000-1500 degrees Celsius in an inert atmosphere to react the REPO4 with the silica surface layer to form a rare earth silicate or disilicate. The pre-oxidizing step may be 0.5 hours to about 100 hours. The heating step may be about 5 minutes to about 100 hours.

The invention aims at solving the technical problems that the environment is polluted, the production cost is high and the product can not be used as the color micro-surface cementing material due to poor performance in the process for preparing the existing color modified emulsion discolored asphalt, and provides a method for preparing color liquid SBS modified emulsion resin which consists of the following raw materials: light color resin emulsion, liquid SBS modifier, inorganic pigment 307 chrome molybdenum red pigment or SGC-M chrome green pigment, pigment dispersant polycarboxylic acid sodium salt or polyacrylic acid ammonium salt. The method comprises the steps of: when in preparation, adding the raw materials into a reactor, maintaining the temperature of the reactor within 20 DEG C to 30 DEG C, adding phosphoric acid to adjust the pH value of the system to be 2.5-4.5, uniformly stirring the system and then obtaining the high-performance color liquid SBS modified emulsion resin. The method has the advantages of simple preparation process, low production cost and non-toxic harmless performance, can be constructed at room temperature, and can prepare the high-performance color micro-surface cementing material to be used for heavy traffic roads by choosing appropriate modifier.

The invention discloses a preparation method of a nitrogen-containing iron-based amorphous nanocrystalline soft magnetic alloy. The preparation method comprises the following steps that an iron-basedamorphous soft magnetic alloy is subjected to plasma nitriding to obtain a nitrogen-containing iron-based amorphous soft magnetic alloy with a completely amorphous structure, and annealing treatment is carried out to obtain the nitrogen-containing iron-based amorphous nanocrystalline soft magnetic alloy, wherein the temperature for plasma nitriding is 100-400 DEG C, and the nitriding time is 10-60min. The preparation method has the characteristics of being low in nitriding temperature and short in nitriding time, the problem of iron-based amorphous crystallization in the nitriding process issolved, and the problems that the iron-based amorphous soft magnetic alloy is poor in toughness and uneasy to machine after nitriding are solved. The invention further discloses the nitrogen-containing iron-based amorphous soft magnetic alloy and the nitrogen-containing iron-based amorphous nanocrystalline soft magnetic alloy which are prepared by using the preparation method. The crystal grain size of nanocrystalline is 10-15 nm, and the saturation magnetic induction intensity is 1.48-1.74 T.

The invention provides chilli oil and chilli sauce as well as preparation methods of the chilli oil and the chilli sauce. The preparation methods comprise the steps of selecting chillies, pickling and fermenting the chillies, grinding the chillies and cooking the chillies, thus preparing the chilli oil and the chilli sauce. The chilli oil, the chilli sauce and the preparation methods have the advantages that as the chilli oil and the chilli sauce are simultaneously prepared by adopting the method of fermentation, the raw materials are fully utilized; meanwhile, the chilli sauce is hot, sweet and fresh and is complete in color, aroma and taste.

The present invention relates to the application of at least partially bainitic or interstitial martensitic heat treatments on steels, often tool steels or steels that can be used for tools. The first tranche of the heat treatment implying austenitization is applied so that the steel presents a low enough hardness to allow for advantageous shape modification, often trough machining. Thus a steel product is obtained which can be shaped with ease and whose hardness can be raised to a higher working hardness with a simple heat treatment at low temperature (below austenitization temperature).

The invention belongs to the field of organic waste resource recovery and fertilizer production and in particular relates to an organic liquid fertilizer based on concentrated biogas slurry as well as preparation and application methods thereof. The preparation method comprises the following steps: (1) preparing an organic basic liquid fertilizer liquid: carrying out dispersive mixing on concentrated biogas slurry and phosphate fertilizers, thus obtaining the organic basic liquid fertilizer liquid; (2) preparing an organic basic nitrogen fertilizer liquid: carrying out dispersive mixing on concentrated biogas slurry and nitrogen fertilizers, thus obtaining the organic basic nitrogen fertilizer liquid; (3) preparing an organic basic chelate / complex trace element fertilizer liquid: carrying out dispersive mixing on concentrated biogas slurry and trace element fertilizers, thus obtaining the organic basic chelate / complex trace element fertilizer liquid; (4) preparing an organic liquid fertilizer primary liquid: carrying out dispersive mixing on the three kinds of liquids and an organic polymer dispersing emulsifier, thus obtaining the organic liquid fertilizer primary liquid; (5) preparing the organic liquid fertilizer based on concentrated biogas slurry: carrying out filtration and centrifugal separation on the organic liquid fertilizer primary liquid, thus obtaining the organic liquid fertilizer. The preparation method has the effect of achieving resource utilization of anaerobic digestion liquids of large-scale biogas projects. The prepared organic liquid fertilizer is applied as a special fertilizer for drop irrigation, soaking of seeds, seed dressing, root irrigation or foliage spray.

The invention discloses a method for preparing a titanate, anatase TiO2 and AgCl / Ag / TiO2 composite material. The method comprises the following steps: melting pure aluminum and copper by heating to obtain molten Al-Ti alloy and preparing an alloy strip from the molten Al-Ti alloy by virtue of a single-roller melt-spinning method; dealloying the alloy strip to titanate; processing titanate with hydrochloric acid to obtain anatase TiO2; and processing TiO2 and AgNO3 under ultraviolet light to obtain AgCl / Ag / TiO2. According to the method, the titanate, TiO2 and AgCl / Ag / TiO2 composite material is prepared at a low temperature for the first time by virtue of the dealloying method, the operation process is simple and convenient and good in repeatability, the hydrothermal process used in the traditional method for preparing titanate and a high-temperature calcination process used in the preparation of TiO2 are avoided and the anatase TiO2 and AgCl / Ag / TiO2 composite material has the advantages of excellent catalytic performance and good stability and has a good application prospect.

The invention relates to a multi-ribbed insulation wallboard comprising insulation boards, concrete and concrete ribs, wherein the insulation boards are arranged in the concrete at intervals in layers; the concrete ribs are formed between adjacent insulation boards in every layer; and the concrete ribs in different layers are staggered. The wallboard disclosed by the invention has the beneficial effects that the heat bridge effect of non-insulation parts such as pillars and the like, joints of the insulation boards and the like can be avoided with no need of adopting other insulating layers, so that the heat bridges of the joints of the insulation boards and the concrete and insulation problem of the pillars are solved, the insulation effect of the outer walls is increased and the problem of building energy saving is effectively solved and the insulation boards have good mechanical properties and are capable of meeting the requirements of different self-insulation walls. The wallboard is small in self-weight and extremely low in material wastage rate, has no need for plastering, is capable of saving lots of construction time and construction cost and effectively cutting off the heat bridges of the joints of the insulation wallboards and produces no construction waste. The construction of the wallboard is clean and tidy in the site, basically dry in operation condition, civilized, rapid, simple and convenient, and is of the equipment type.

The invention discloses a lycium ruthenicum fruit extraction method. The lycium ruthenicum fruit extraction method comprises the following steps: A, preparing lycium ruthenicum juice; B, adding pectinase at 0.02-0.10wt% and cellulase at 0.005-0.025wt% into the lycium ruthenicum juice, carrying out enzymatic hydrolysis at 20-60 DEG C for 60-180 minutes, and carrying out filtering so as to obtain afiltrate one; C, performing ultra-filtration on the filtrate one at a temperature of 20-45 DEG C and a pressure of 0.05-0.15MPa so as to obtain a filtrate two; and D, performing reverse osmosis on thefiltrate two at temperature of 20-40 DEG C and a pressure of 3.0-4.0MPa. Being adopted for extracting the lycium ruthenicum fruits, the extraction method disclosed by the invention is capable of effectively preserving anthocyanin in the extract by avoiding high-temperature processing applied in conventional extraction processes.

The invention discloses a manufacturing method for a multidimensional curved conical tube. The manufacturing method includes that the multidimensional curved conical tube is designed by adopting three-dimensional software, surfaces are separated and unfolded into planes, accurate cutting is achieved, and waste of materials is reduced; fixing with a traditional steel frame is not needed, welding and assembling operations can be performed on the ground to have the surfaces welded, and waste of the steel frame used for one time is reduced; the cross section of the multidimensional curved conical tube is rounded by the aid of pressure of water, production process is simplified, high-temperature machining is avoided, and problems about high-temperature scalding, positioning difficulty, big errors and the like are effectively solved. The waste of the materials is lowered, the process is simplified, industrial accidents are reduced, leveraging of multiple processes is avoided by one-time formation, production efficiency is improved, use of fuel is reduced, and safety and environment friendliness are achieved.

The invention discloses a nickel-free white copper alloy strip foil and a preparation method thereof. The thickness of the nickel-free white copper alloy strip foil is 0.04-0.1 mm, the nickel-free white copper alloy strip foil is composed of, by weight, 5-15% of Zn, 10-14% of Mn, 0.5-1.5% of Al, 0.5-1.5% of Sn, 0.05-0.5% of Ti, 0.01-0.3% of Si, 0.01-0.3% of B, 0.01-0.3% of Ce and the balance Cu and inevitable impurities, wherein the impurity content is lower than 0.2%. According to the preparation method, the nickel-free white copper alloy strip foil is obtained through smelting, horizontal continuous casting, surface milling, rough rolling and cogging, multi-pass intermediate rolling and multi-pass finish rolling, the production process is simple, the process is short, the rate of finished products is high, the white chromaticity is good, environmental friendliness is achieved, and the requirements of building interior decoration, furniture and vehicle decoration and the like for the white copper alloy strip foil can be met.

The invention relates to intelligent glasses which comprise a weather receiving module, a first temperature sensor, a second temperature sensor, a lens heat treatment module, a humidity sensor, a posture judgment module and a control module. The weather receiving module is used for receiving weather information at the current moment, the weather information comprises a predicted temperature value, the first temperature sensor is used for detecting the current environment temperature, the second temperature sensor is used for detecting the temperature of the lens, and when the predicted temperature value and the temperature value of the lens are larger than a first preset temperature threshold value, the lens is started. The control module is used for starting the lens heat treatment module to be in a standby state, starting the posture judgment module, receiving posture information of the posture judgment module, and starting the lens heat treatment module to be in a heating mode when the posture judgment module determines that the temperature of the spectacle lens is obvious due to posture change. According to the invention, preheating treatment can be automatically and intelligently carried out according to environmental changes, and the glasses are prevented from fogging to influence sight.

The invention discloses an extraction and detection method of rapeseed glucosinolate, which belongs to the field of deep processing of oil crops. The extraction and purification method of glucosinolate in rapeseeds is improved through comprehensive application of technologies such as constant-temperature water bath, ultrasonic extraction, a solid-phase extraction column, a microfiltration membraneand the like; an ion pair extraction method is utilized to establish an accurate and efficient rapeseed glucosinolate analysis method; the method can meet the detection requirements of 14 known rapeseed glucosinolates, and six newly discovered glucosinolate components existing in rapeseeds are extracted and qualitatively characterized for the first time. The method solves the problem of unclear degradation mechanism of the traditional rapeseed glucosinolate as a flavor precursor substance, improves the stability of the rapeseed glucosinolate in the extraction process, and has great application potential and economic value in the fields of rapeseed oil processing raw material selection, breeding direction and the like.

The invention discloses a preparation method for a fuel cell gas diffusion layer with hydrophobicity. The preparation method comprises the steps of performing hydrophobic treatment on a porous carbonfiber substrate in a hydrophobic solution; performing thermal treatment on the porous carbon fiber substrate for 5-30 minutes under 60-150 DEG C after hydrophobic treatment; preparing micropore layerpaste, wherein the micropore layer paste is prepared by mixing a hydrophobing agent, carbon black particle and water; and coating the micropore layer paste at one side of the porous carbon fiber substrate, and performing thermal treatment for 5-30 minutes under 60-150 DEG C to obtain the fuel cell gas diffusion layer with hydrophobicity. The preparation method has the advantages of economy, rapidness and high production efficiency.