98results about How to "Loose conditions" patented technology

Provided is a process for the preparation of a pigment dispersion which comprises a pigment surface treatment step of introducing at least one hydrophilic dispersibility-providing group onto the surface of a pigment directly and / or with the interposition of a polyvalent group, and a dispersion step of dispersing a surface-treated pigment obtained at the surface treatment step in an aqueous medium, characterized in that the dispersion step involves the dispersion of the surface-treated pigment in admixture with a wetting agent and water and a resin for providing dispersibility and / or fixability is added during and / or after the dispersion step.

The present invention aims to increase the number of test elements of a TEG without increasing the area of each of slice areas. Test electrode pads are disposed in alignment in one row in each of areas separated from semiconductor chips provided over a semiconductor wafer. Test elements are formed corresponding to these test electrode pads and in areas lying directly therebelow. Electrode terminals of the test elements are electrically coupled to the test electrode pads adjacent to the corresponding electrode pads and the test electrode pads further adjacent thereto with being spaced one test electrode pad apart. Upon testing, probe pins are brought into contact with the odd-numbered test electrode pads to conduct testing. Next, the probe pins are brought into contact with the even-numbered test electrode pads while being shifted by one electrode pad pitch thereby to conduct testing.

The invention relates to the field of molecular biology, in particular to an AS-PCR (allele-specific polymerase chain reaction) primer design method, a gene mutation detection method and a kit. The AS-PCR primer design method comprises the following steps: (1), an AS-PCR primer is designed for a target sequence containing a to-be-detected allele mutation region; (2), a competition blocking primer is designed for the AS-PCR primer and adopts oligonucleotide in reverse complement with the AS-PCR primer. According to the gene mutation detection method, the AS-PCR primer and the competition blocking primer have a PCR amplification reaction. The kit comprises the AS-PCR primer, the competition blocking primer, a TaqMan probe, an internal control primer, an internal control probe, polymerase, dNTP (deoxynucleotide) and a buffer solution. The AS-PCR primer design method, the gene mutation detection method and the kit have the advantage that the difference of specificity of the AS-PCR primers on mutation sites due to strong and weak mismatch of the mutation sites is reduced effectively.

Disclosed is a non-linear echo canceller and method for cancelling echo during full duplex communication in a hands free communication system. An input signal from a far-end talker and an input signal from the output from an echo canceller are received. K spectral subbands are created for each input signal. The spectral echo residual power at each subband is estimated and compared to a clean signal power to calculate a signal to echo ratio. Gains are calculated based on each calculated ratio and non-linear echo is cancelled based on the calculated gains.

The invention relates to a static equivalence method for an external network based on an internal network routine Ward equivalent circuit. The static equivalence method comprises the steps of first inputting a topological structure, parameters thereof and status information through programs by using a computer; then calculating to obtain a routine Ward equivalent network of the internal network and parameter values of the routine Ward equivalent network; thereafter establishing virtual measurement equation of equivalent circuit parameters of the external network based on the restraint relationship between the equivalent circuit parameters of the external network and the routine Ward equivalent circuit parameters of the internal network; and finally solving the virtual measurement equation by adopting a least square method to acquire parameter values of the equivalent network of the external network. The static equivalence method can be widely applied to interconnected networks to solve an equivalence problem of completely unknown adjacent subnets, provides an effective solution for carrying out equivalence on completely unknown adjacent subsystems in the interconnected networks, providing a profound theoretical basis for improving the precision of safe and stable correction for independent subsystems, and being conducive to safe and stable running of the interconnected networks.

The invention relates to a preparation method of in-situ gel sustained-release preparation for treating Bovine mastitis, which is characterized in that: the preparation steps are as follows: weighingciprofloxacin hydrochloride and film formation high molecular material chitosan according to a weight ratio of 0.1-0.5:1; dissolving the mixture of the two in water to prepare an aqueous solution containing 1 percent of chitosan, spraying and drying the aqueous solution to prepare a chitosan microsphere containing ciprofloxacin hydrochloride; distributing the obtained microsphere containing drug into the mixture aqueous solution formed by poloxamer 188 and poloxamer 407 according to the mass ratio of 0.1-5:1, thus obtaining the temperature-sensitive in-situ gel sustained-release preparation for treating Bovine mastitis. The sustained-release microcapsule containing inflammation diminishing medicine is distributed in the solution of high polymer material capable of forming gel at the body temperature. The in-situ gel containing inflammation diminishing medicine can treat Bovine mastitis by perfusion in breast; and the preparation method is simple, the product is safe in use, and the curative effect is accurate.

A microcrystalline bamboo-charcoal cellular pottery-texture air filter panel with catalytic function is prepared by using a catalytic material to coat a microcrystalline bamboo-charcoal cellular pottery-texture air filter panel prepared from the following compositions in percent by weight: 20-40% of bamboo charcoal powder, 40-60% of porous nonmetal mineral powder, 10-30% of clay and 2-5% of a binder. The preparation method of the air filter panel comprises: adding the catalytic material into a silica gel water dispersion, stirring to form a suspension, and then putting the microcrystalline bamboo-charcoal cellular pottery-texture air filter panel into the suspension for dipping, taking out and drying. The photocatalytic function of the catalytic material and the adsorption function of the microcrystalline bamboo-charcoal cellular pottery-texture air filter panel are integrated, so that the photocatalytic effect of the catalytic material is improved, and the preparation method is simple and convenient to apply.

A vaso-occlusive device, delivery system and method of delivery to a selected site of the vessel in a manner allowing the vaso-occlusive device to substantially assumes a diameter of an inner surface of the vessel or aneurism sac at the site of the embolization procedure. The vaso-occlusive device or embolic coil has specific properties of wanting to float and conform to the diameter of the aneurysm sac thereby enabling retractability and rapid disconnect detachment for such embolic coil, and a predetermined shape requiring fewer embolic coils per embolization procedure advantageously improving patient risk, and the cost and time of the procedure. A method for deploying the embolic coil with such specific properties to the site of an aneurysm using a delivery system configured for deploying the embolic coil features inserting, and / or reconnecting for positioning and reinserting the embolic coil.

A first lens and a second lens are bonded, and each of a light emitting plane and a light incident plane is a flat surface to shorten a configuration in an optical axis direction, and simultaneously, various optical elements such as a transmission / reflection selection member and the like can be mounted on a flat surface portion. Further, by providing a half mirror in a bonding portion between a convex surface and a concave surface to give power in folding an optical path, an image with a wide angle of view can be formed.

The invention discloses a preparation method of a composite conductive coating. SnCl4.4H2O and SbCl3 are taken as raw materials, high-purity barite is ball milled for 1.5 hours to 7.5 hours; chemical coprecipitation method is adopted for produce a precursor SnO2BaSO4 which is intermingled with Sb; SSB composite conductive power is obtained after being baked for 1.5 hours to 2 hours at a temperature of 600 to 900 DEG C after being dried. The SSB composite conductive power is subject to surface modification with a coupling agent; film forming matter with a weight percentage of 27 to 43 percent and accessory ingredient are dispersed fully; 25 to 45 percent of the SSB composite conductive power with modification surface is added into the disperse system for stirring fully. A diluting agent is put into the mixture for mixing and then the new mixture is sand ground and dispersed for 0.5 hour to 1 hour at a high speed; after the impurity is removed, finished product of conductive coating is obtained. The composite conductive coating prepared by the novel method has the advantages of good constructive property, low sedimentation rate of coating, smooth and plane coating surface and good anti-friction and anti-impact property.

An OFET with pentacene derivatives as semiconductor materials includes Top type and Bottom type. The substituting radicals involve halides (F-, Cl-, Br-, I-). Films can be produced from pentacene derivatives directly, or produced from pentacene derivatives precursor indirectly, by vacuum depositing, rotary coating, throwing, casting, LB method, printing, and ink jetting, etc. The produced OFET has good field effect transition rate and electric current switching ratio stably.

The invention relates to a preparation method of silica-coated all-inorganic perovskite core-shell structure quantum dots. The preparation method comprises the following steps: completely dissolving cesium carbonate in n-caprylic acid to obtain a cesium precursor solution, dissolving lead bromide and tetra-n-octylammonium bromide in toluene to obtain a lead bromide / toluene solution; and then, sequentially adding an aminosilane coupling agent and the cesium precursor solution into the lead bromide / toluene solution, stirring for reaction, and separating and drying an obtained product to obtain the target product. Compared with the prior art, the preparation method disclosed by the invention is simple and loose in condition, the fluorescence characteristic of the prepared product is not reduced, the stability is greatly improved compared with that of pure CsPbBr3, and the product can be used as fluorescent powder to be packaged into a photoelectric device for application.

The invention relates to a method for preparing an oxide dispersion strengthened copper composite material, and belongs to the field of preparation of copper alloy materials. The method is as follows:firstly reducing Cu powder; alloying element powder, to be more specific, thoroughly mixing the reduced Cu powder with an appropriate amount of Y powder to obtain a Cu powder and Y powder mixture, then packaging the Cu powder and Y powder mixture and grinding balls in a stainless steel ball mill tank, and performing ball milling under an inert gas atmosphere; after the ball milling, annealing alloyed alloy powder by a muffle furnace, and sintering the annealed alloy powder into a block by a discharge plasma sintering furnace, and then rolling the block into a desiring thickness; and finally using a muffle furnace to perform heat treatment on the rolled copper alloy, and cooling in the furnace to obtain the oxide dispersion strengthened copper composite material. The oxide dispersion strengthened copper composite material prepared by the method has uniform distribution of nano-oxide particles with an average size of 5-6 nm, the powder production rate is over 95%, and the process is simple and easy to operate.

The invention discloses a preparation method of stripping type hydrotalcite. The preparation method comprises the steps of calcining commercially available or self-made hydrotalcite into in a muffle furnace to prepare layered dihydroxy composite metal oxide; adding the layered dihydroxy composite metal oxide into an organic acid salt solution by using the memory effect of hydrotalcite, performing precipitation separation, washing and vacuum drying, then putting the product into a microwave oven, and heating by using a microwave technology to ensure that hydrotalcite is stripped and a stripped hydrotalcite product is obtained. The preparation method is simple in process, easy in operation and loose in condition, and the obtained product is uniform in structure.

A vehicle includes an air conditioning apparatus configured to be capable of executing ventilation operation to supply air outside the vehicle into a passenger compartment, and cooling operation to supply cool air into the passenger compartment; and a control unit that causes the air conditioning apparatus to execute remote air conditioning in which air conditioning is performed while a user is not in the vehicle, and operated air conditioning in which air conditioning is performed by the user's operation while the user is in the vehicle. The control unit controls the air conditioning apparatus such that a condition in which the ventilation operation is executed in the remote air conditioning is more relaxed than a condition in which the ventilation operation is executed in the operated air conditioning. In this way, power consumption by pre-air conditioning can be reduced.

The invention relates to light absorption paint for laser quenching and a preparation method thereof. The invention is characterized in that the light absorption paint for laser quenching is prepared by evenly mixing the following components by weight or volume: 20-30g of SiO2, 2-4g of graphite powder, 8-12g of paint flake and 100-130mL of absolute alcohol. The preparation method comprises the following steps: (1) preparing 20-30g of SiO2, 2-4g of graphite powder, 8-12g of shellac and 100-130mL of absolute alcohol; (2) soaking 8-12g of paint flake in the absolute alcohol until the paint flake is completely dissolved; and (3) adding SiO2 and graphite powder into the absolute alcohol with dissolved paint flake, and evenly mixing. The light absorption paint can obviously increase absorbance and enable the energy density distribution to be more uniform. The invention obviously enhances the quenching hardness, avoids partial burnt phenomenon on the workpiece and increases the hardening layer thickness (up to 1.2-2.0mm). The invention has the advantages of reasonable formula, simple preparation, high safety, environmental protection, simple use and low cost.

A method for manufacturing a bonded wafer including: forming an ion-implanted layer in a bond wafer, bonding the bond wafer to a base wafer, delaminating the bond wafer at the ion-implanted layer, and performing a flattening heat treatment on a surface after delamination, in which a silicon single crystal wafer is used as the bond wafer where the region to form the ion-implanted layer has a resistivity of 0.2 Ωcm or less, the ion-implanted layer is formed where the ion dose for forming the layer is 4×1016 / cm2 or less, and the flattening heat treatment is performed in an atmosphere including HCl gas. Therefore, a method for manufacturing a bonded wafer having a low resistivity thin film (SOI layer) that contains dopant, such as boron, with high concentration according to the ion-implantation delamination method, where outward diffusion of dopant and suction due to oxidation can be inhibited to maintain low resistivity.

The invention relates to a method for preparing ordered mesoporous material by utilizing bentonite. Bentonite material and alkali with the weight ratio of 1: 0.5-2 are mixed and roasted for activation, a sample after roasting is stirred and leached in deionized water at common temperature, leaching solution is the synthesized material, the leaching solution is dripped in surfactant solution, the pH value of the solution is adjusted to 7-13, the solution is put in a reaction kettle for crystallization at 100-180 DEG C, filtered, washed, dried and roasted at 500-600 DEG C to obtain white power,i.e. the ordered mesoporous material. The method has simple preparation process, cheap and easily available raw material, low concentration of organic material and difficult initiation of environmentpollution. The specific surface area of the prepared ordered mesoporous material has a maximum of over 1000m<2>*g<-1>, the pore volume can reach over 1.00cm<3>*g<-1>, and the distribution of pore diameters is centralized.

A catalytic-materail-coated microcrystal bamboo-charcoal pottery bead is prepared by coating a microcrystal bamboo-charcoal pottery bead prepared from the following compositions in percent by weight with a catalytic material: 30-50% of bamboo charcoal powder, 30-40% of a porous nonmetal mineral powder, 20-30% of clay, and 2-5% of a binder. The preparation method of the catalytic-materail-coated microcrystal bamboo-charcoal pottery bead comprises: adding the catalytic material into a silica-gel water dispersion, stirring to form a suspension, then putting the microcrystal bamboo-charcoal pottery bead into the suspension, stirring, taking out the microcrystal bamboo-charcoal pottery bead and drying; or putting the microcrystal bamboo-charcoal pottery bead into the suspension for dipping, and taking out for drying. The photocatalysis function of the catalytic material and the extremely good adsorption of the microcrystal bamboo-charcoal pottery bead are integrated, the catalytic effect of the catalytic material is improved, and the preparation method is simple and application is convenient.

A method of separating and removing impurity in electrolyte when cabalt is produced by electrolysis. The character of this invention using CoS2O3 as copper resistance, adding CoS2O3 in weight proportion of Cu2+:S2O32- =1:8-16 in electrolyte; adding acid and adjusting the pH between 0.5 and 2.0, at the temperature between 70deg.C and 90deg.C, the reaction time is 30-40min, then producing the precipitation of CuS, finally, filtrating and separating the precipitation the process of removing copper is finished. The method effectively overcomes the disadvantage of purifying and removing copper and iron with cobalt positive pole electrolyte, improves the depth of removing copper, decrease the cobalt content in residues, reduces the residues content and increases the straight yield.

The invention discloses a high-strength recycled cementing material product preparation method. The technical scheme comprises: crushing waste concrete, separating, and grinding to obtain waste cementstone powder; heating the waste cement stone powder to a temperature of 400-1000 DEG C, and cooling to a room temperature to obtain a recycled cementing material; and adding gravel and water to the recycled cementing material, uniformly stirring, carrying out pressing molding, and carbonizing to obtain the high-strength recycled cementing material product. According to the present invention, thepreparation method has advantages of simple process, low production cost, short production period and stable product performance.

The invention provides a pulse reconstruction method for sound of multipath underwater channel. The pulse reconstruction method includes the following steps of (1), transferring channel output signals from to a complex cepstrum domain through a convolution homomorphic feature system (2), filtering by a filter of the complex cepstrum domain which is constructed on the basis of an idea of peak search, that is to adopt the idea of peak search in the complex cepstrum domain based on the features of a complex cepstrum to automatically search for multipath peak pulse and to conduct the smooth processing so as to achieve the filtering of the multipath interference of the complex cepstrum (3), enabling the result after filtering to be through a convolution homomorphic inverse feature system and achieving the reconstruction of the pulse signals of the sound. According to the method, the priori knowledge, such as channel or signal parameters, is not required, the fast and varying channel is applicable, the method of constructing the feature filter is easy, and the reconstruction error is small.

The invention belongs to the technical field of functional materials, and particularly relates to intelligent microgel achieving linear temperature response and a preparation method thereof. According to the intelligent microgel achieving the linear temperature responses and the preparation method thereof, by means of precipitation polymerization of two kinds of oligomeric ethylene glycol acrylate monomers and an aqueous solution of a cross-linking agent, microgel which shows linear temperature response behaviors within a wider range is obtained. When acrylic monomer is introduced in the precipitation polymerization process, microgel achieving pH response and linear temperature response simultaneously can be obtained; the response behaviors can be customized and adjusted by changing the proportion. The raw material is ethylene glycol-based monomer which is good in biocompatibility, the solvent is water, the preparation process is green and free of pollution, operation is convenient, large-scale industrial production can be achieved, and the prepared microgel has the linear temperature response behaviors, makes up the gap of traditional dramatic temperature response behaviors and has the large-scale preparation potential and wide commercial application prospect.

The invention discloses a preparation method of a macrolide antibiotic sensor based on iron nitride, and belongs to the technical field of new nano functional materials and chemical biosensors. The method comprises the following steps: firstly preparing an array of iron nitride nanosheets on a disposable electrode, directly preparing a polydopamine film and a molecularly imprinted polymer using the macrolide antibiotic molecule as a template molecule coated with luminol in situ successively on the array of iron nitride nanosheets one after another by adopting an in-situ growth method and utilizing a large specific surface area and a high adsorption activity for amidogen, and eluting the molecularly imprinted polymer of the template molecule after the template molecule is eluted and the original position of the template molecule became a hole, thereby preparing a macrolide antibiotic sensor based on iron nitride.

The invention relates to a nano-silver-loaded microcrystal bamboo charcoal ceramic bead and a preparation method thereof. The nano-silver-loaded microcrystal bamboo charcoal ceramic bead is prepared from nano-silver and a microcrystal bamboo charcoal ceramic bead by virtue of surface compounding, wherein the microcrystal bamboo charcoal ceramic bead is prepared from the following components by weight percent: 30%-50% of bamboo charcoal powder, 30%-40% of porous nonmetal mineral powder, 20%-30% of clay and 2%-5% of an adhesive. According to the preparation method, the microcrystal bamboo charcoal ceramic bead is coated with nano-silver, so that nano-silver has a strong support body, doped nano-structure silver is further formed, and the catalytic efficiency of nano-silver is further improved; the microcrystal bamboo charcoal ceramic bead is high in structural strength and can resist high temperature, so that the microcrystal bamboo charcoal ceramic bead can be regenerated by virtue of a roasting manner after being used for a long time, and the adsorption capability and the catalytic degradation and killing effects are recovered; compared with porous-ceramic-loaded nano-silver, the nano-silver-loaded microcrystal bamboo charcoal ceramic bead has relatively good effects in the aspects of water quality purification, air purification and the like, furthermore, the preparation method is simple, and the application is convenient.

A fusing unit includes a heat roller and a press roller, which fuse a toner image fused to a recording sheet; a first separating pawl contacting a circumferential surface of the heat roller and separating the recording sheet from the heat roller; second separating pawls that are spaced from the first separating pawl in an axial direction to contact the circumferential surface of the heat roller and separate the recording sheet from the heat roller; a first rotatable guide in the first separating pawl that guides the recording sheet to a sheet discharge guide of an exit feed path while changing its orientation; a second rotatable guide provided in each of the second separating pawls which guides the recording sheet to a sheet discharge guide of an exit feed path while changing an orientation of the recording sheet; and a fusing feed path that reaches the sheet discharge guide.

The invention discloses a preparation method for a tetracycline antibiotic electrochemiluminescence sensor, and belongs to the technical field of novel nanometer function materials and biosensing analysis. The preparation method firstly prepares a nickel-iron bimetallic oxide nanosheet array on a disposable electrode, the large specific surface area of the nickel-iron bimetallic oxide nanosheet array, high adsorption activity for an amino and the amino functional group of polydopamine are used, an in-situ growth method is adopted to successively directly preparing a polydopamine film and a molecularly imprinted polymer which coats luminol in an in-situ way and takes tetracycline antibiotics as a template molecule on the nickel-iron bimetallic oxide nanosheet array, and after the template molecule is eluted, the position of the original template molecule becomes a cavity, i.e., the molecularly imprinted polymer of the template molecule is eluted. Therefore, the tetracycline antibiotic electrochemiluminescence sensor finishes being prepared.

The invention discloses a method for preparing nanometer titania. The method comprises the following steps: uniformly mixing tetrabutyl titanate and absolute ethyl alcohol according to a volume ratio of 1:(2.5-3.5), thereby obtaining a solution A; mixing and stirring glacial acetic acid, absolute ethyl alcohol and distilled water according to a volume ratio of 1:(3.5-4.5):(1.1-4), adding hydrochloric acid, regulating the pH value to be less than or equal to 3.5, and preparing a liquid B; adding the solution A and the liquid B into a water bath at the temperature of 25-35 DEG C according to a volume ratio of 1:1.1, pouring the solution A into the liquid B while stirring, continuously stirring the obtained mixed solution for at least half an hour, heating in a water bath at the temperature of 40-60 DEG C, thereby obtaining white gel after 2 hours; airing the gel in a fuming cupboard, adding the gel into a muffle furnace, preserving the temperature for 2-4 hours in an environment of 400-600 DEG C, thus obtaining a solid, grinding, thereby obtaining the powder, wherein the powder refers to the nanometer titania. The method has the advantages that the preparation conditions are wide, and the method is easily applied to industrial production.