1960results about How to "Easy to zoom in" patented technology

Disclosed and claimed are a method for the purification of polysaccharide-protein conjugate vaccines by ultrafiltration in a saturated solution of ammonium sulfate. The ultrafiltration method of the present invention provides an efficient, readily scalable method for removal of unbound polysaccharides from polysaccharide-protein vaccines, thereby improving the purity and consistency of the polysaccharide-protein vaccines.

The present invention discloses a method for zooming image, and the method is implemented to an electronic device having a touch panel. When the touch panel of the electronic device detects that touch points on the touch panel are pressed simultaneously, and one of touch points is moved thereon, then the electronic device will determine whether to zoom in or out an image displayed on the electronic device according to the moving direction of the touch point, and determine to zoom in or out the image in a proportion according to the moving distance of the touch point. Thus, the image displayed on the electronic device can be zoomed in/out by the operation of touch points at the touch panel.

A body cavity observation apparatus comprising:

a treatment tool to be inserted into a body cavity of a subject with an insertion tool as a guide,

an observation section attached to an opening of a body wall of the subject, a monitor for displaying the body cavity captured by the observation section, and

a marker position-detecting device for detecting a position of a marker part applied to the treatment tool or insertion tool from an image showing the body cavity captured by the observation section; wherein

the marker position-detecting device comprises:

a pixel extracting device for extracting a group of pixels in the same color as color of the marker part from the image, and

a calculation device for calculating a position of the barycenter of the group of pixels as a position of the marker part.

The invention is based on the discovery that certain membranes, which include side chains or molecular “brushes” having, for example, tertiary amino functional groups, can be used as highly effective filters to capture viruses/virus particles from liquids without removal of proteins. New methods based on this discovery include removing viruses from liquids such as blood or plasma, removing viruses from pharmaceuticals, concentrating and/or purifying viruses, e.g., for use in gene therapy, and producing recombinant viruses in new bioreactors. The invention also includes new methods of therapy or adjunct therapy for viral infections, in which a patient's blood or plasma is filtered through the membranes to remove viruses to reduce the viral load. The invention also includes new bioreactors and viral filters containing the membranes.

A DNA amplification method of amplifying DNA by PCR comprises a process of preparing a mixed solution for PCR reaction by mixing a template DNA, a primer DNA, a RecA protein derived from Thermus thermophilus (T. th. RecA protein) and a phage T4 gene 32 protein, and a process of amplifying DNA by subjecting the prepared mixed solution for PCR reaction to PCR reaction.

The invention provides composite material containing a modified basalt and a polymer and a preparation method thereof, wherein the main components of the composite material contains: 1200-1300 parts of polymer, 700-800 parts of modified basalt fiber, and 5-50 parts of surfactant coupling agent. The method, by means of the mechanical force, supersonic wave and electromagnetic force synthetic effect of the surfactant or coupling agent, comprises: uniformly dispersing the polymer and the modified basalt fiber into a solvent to prepare a uniform and stabile mixture, adding another solvent into the mixture, implementing the cladding or wrapping to the modified basalt fiber while precipitating the polymer from the mixture, and then forming the composite material of the modified basalt fiber containing polymer. The composite material can be used for preparing asphalt with excellent performances, the method has the advantages of low cost, simple operation and easy enlargement, and the method makes it easy for the modified basalt fiber to be uniformly dispersed in the polymer.

The invention relates to a method for preparing a length-diameter-ratio nano-silver wire by a pH-value regulation solvothermal method. The method comprises the following steps of: preparing the following ethylene glycol solution, namely an ethylene glycol solution A of silver nitrate or silver acetate, an ethylene glycol solution B of polyvinyl pyrrolidone (PVP), an ethylene glycol solution C of water-soluble chloride and concentrated acid D; mixing the components according to a certain amount and fully stirring to form a final mixed solution; moving the final mixed solution into a reaction kettle; placing in an oven for reaction for a certain time; taking the reaction kettle out and cooling to room temperature to obtain mother liquid of the nano-silver wire; adding alcohol into the mother liquid for diluting, and removing supernatant liquor to obtain a precipitate; and repeatedly performing centrifugal separation, and thus obtaining nano-silver wire dispersion liquid uniformly dispersed in the alcohol. The method is simple, high in efficiency and low in cost, and can prepare high-quality nano-silver wires within a wider range of reaction condition; and prepared products are high in length-diameter ratio, good in length uniformity and low in impurity content.

The invention discloses an arc plasma torch preparing nanometer charcoal fibrous material method, which comprises the following steps: placing untreated leavings of liquefying coal directly in direct current arc plasma torch to carry on heat-treatment; using nitrogen for arc working gas under atmosphere pressure; getting nanometer charcoal fibrous material after 120-175 seconds, wherein there is no need to add in any activators in preparing process. The method is characterized by the following: the craft route is simple; the raw material is the waste of coal hydrogenant liquefaction craft; it's a good way to use coal liquification leavings to prepare high-added value, functional carbon material; the nanometer charcoal fibrous material can be used for accelerating agent, catalyst carrier, lithium ion secondary cell anode material, double-layer capacitor electrode, highly effective active solid, release agent and construction reinforced materials.

A method for controlling a display of a touch screen, a user interface of the touch screen, and an electronic device using the same are disclosed. The method comprises: displaying at least one mode selection on the display of the touch screen, wherein each one of the at least one mode selections corresponds to a gesture control mode; receiving a selection command for selecting one of the at least one mode selections; entering the gesture control mode corresponding to the selected mode selection; receiving a gesture control command adapted for the entered gesture control mode; and executing a specific operation according to the gesture control command.

The invention relates to technology for simultaneously measuring multi-phase flow particles online through multi-parameter, and aims to provide a method and a device for simultaneously measuring droplet positions, particle sizes and a complex refractive index. The method comprises the following steps of: (1) dividing a highly coherent continuous laser beam into two beams after spatial filtering and collimating beam expansion, wherein one beam radiates particles in a detected flow field region, and the other beam is used as a reference beam; (2) mixing scattered light of a lateral 30-degree to 90-degree region of particles in the detected flow field region and the attenuated reference beam to perform interference so as to form a hologram, storing the hologram in a computer after being recorded by a digital camera through an imaging device; (3) acquiring a series of reconstructed images of the detected particles along the depth direction by utilizing digital reconstruction technology; and (4) identifying the reflective spot and the refractive spot of the particles from the reconstructed images by utilizing digital image processing technology so as to acquire space coordinates and scattered light intensity ratios. Compared with rainbow measurement technology, the measurement method has the advantages that: a light path system of the measurement device is relatively simple and is easy to implement.

The invention relates to a process for preparing high purity mango glycosides by using mango leaf or amygdale leaf as the raw material through resin method decolorization. The extracted mango glycosides has a purity higher than 90%.

The invention discloses a spherical porous silicon/carbon composite material as well as a preparation method and application thereof. The spherical porous silicon/carbon composite material is structurally characterized in that a SiOx/C matrix, graphite with small particle size and a conductive agent are dispersed in porous amorphous carbon, wherein the average particle diameter is 12-25mu m; the method comprises the following steps of carrying out first coating on a SiOx raw material with powder pitch, and performing heat treatment so as to obtain a SiOx/C material; then performing ball milling by use of a wet method so as to reduce the particle diameter of powder, adding a carbon source adhesive, the graphite with the small particle diameter and the conductive agent, and performing high-speed dispersion, thereby obtaining pulp; and finally performing spray granulation and sintering on the pulp, thereby obtaining the final spherical porous silicon/carbon composite material. According to the invention, SiOx is dispersed in cracking carbon, the graphite and the conductive agent, so that SiOx volume expansion during a charge/discharge process is buffered, and the conductibility is enhanced; by virtue of the porous structure, the imbibition rate and cycle performance of the material can be effectively improved; by virtue of bitumencarb coating and high-heat treatment performed in advance, SiOx is prevented from being directly contacted with an electrolyte, and furthermore, the stability and first efficiency of the silicon/carbon material are improved.

Methods and compositions are provided for detection and diagnosis of a lymphoid malignancy using high throughput sequencing of rearranged T cell receptor DNA sequences.

The invention provides a method for preparing activated carbon by utilizing direct coal liquefaction residue as a raw material. The method includes the steps as follows: (1) adding smashed direct coal liquefaction residue together with KNO3, KOH and absolute alcohol into water, stirring to be uniform under room temperature, and later drying the obtained mixture to obtain a dry material; (2) placing the prepared dry material in a carbonization furnace, conducting preoxidation in the atmosphere of air, conducting carbonization-activation in the atmosphere of inertia gas, and then obtaining coarse activated carbon; and (3) acid-washing and deashing the prepared coarse activated carbon to obtain finished activated carbon. The method is simple in preparation process route, uses conventional equipment and has universality to the raw material. The obtained activated carbon has not only characteristics of high specific surface area, developed micropores and low ash content, but also controllable output, higher productivity, suitability for production in batches, and better technological and economic benefits.

This invention provides methods and kits for enriching and/or detecting a nucleic acid with at least one variant nucleotide from a nucleic acid population in a sample. Methods employ the use of enriching primers and bridge-probes for enriching and detecting target nucleic acids. Extension of the enriching primer permits amplification of the target nucleic acid having the variant nucleotide.

The invention discloses a synthesis method of noble metal nano particles, which comprises the following steps: dissolving soluble noble metal salt and surfactant polyvinyl pyrrolidone in ethanol at room temperature, wherein the mass ratio of the noble metal salt to the polyvinyl pyrrolidone is (1:5)-(1:20); adding a reductive amount of NaBH4, and then adding n-dodecanethiol; and carrying out centrifugal separation, precipitating, and washing to obtain the noble metal nano particles. By using ethanol as the solvent, the invention is safe, environment-friendly, green and non-poisonous, thereby reducing the environmental pollution and the harm to a human body, and being beneficial to environmental protection; the synthesis process is completed at room temperature without any heating step, thereby saving the energy and ensuring that the whole preparation process is very simple and convenient; and no special equipment is required, and the process is high in repeatability, thereby being beneficial to realizing large-scale production.

The invention belongs to the technical fields of a novel material as well as preparation, and particularly relates to mesoporous graphene foam as well as a preparation method thereof. The invention realizes hydrothermal preparation of a magnesium oxide texture structure and preparation of the mesoporous graphene foam by using textured magnesium oxide as a template. The mesoporous graphene foam material has abundant mesoporous structures and excellent electric property and can be used as an electrode material of batteries and supercapacitors, so that the energy density and the power density of the batteries or the supercapacitors are expectedly improved to a great extent. The cycling stability of the mesoporous graphene foam material is increased, and the mesoporous graphene foam material combined with materials with high draw ratio or the mesoporous graphene foam material can soften energy storage apparatuses. The advantages have important meaning for realization of commercialization of a new generation of energy storage apparatuses for electromobiles and development of smaller, lighter and flexible portable mobile power supplies. The business prospect is wide. Meanwhile, preparation processes of the high temperature hydrothermal method and a fluidized bed can realize engineering enlargement, so that the method is expected to be industrialized.