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269results about How to "Avoid physical damage" patented technology

Membrane electrode for proton exchange membrane water electrolysis battery and preparation thereof

The invention discloses a proton exchange membrane water electrolyte battery membrane electrode and a process for preparation thereof, which belongs to the technical field of preparing hydrogen gas through electrolyzing water, wherein the proton exchange membrane water electrolyte battery membrane electrode comprises a polymer electrolyte membrane, an anode catalyst layer, a cathode catalyst layer, an anode diffusion layer, a cathode diffusion layer, a support layer and a flow field plate, wherein hydrophilic thin layer structures which are formed by catalyst are respectively brushed on both surfaces of the polymer electrolyte membrane. Anode catalyst is noble metal or metallic material, and the diffusion layer is carbon material or metallic material. A catalyst layer and the relative diffusion layer and the support layer are compacted in a titanium plate to prepare membrane electrode through utilizing external force under normal temperature. The invention lowers the load of catalyst, improves the operating factor of catalyst, avoids the deformation of membranes in the process of heat pressing, and is drawn supported from the catalytic and corrosion resistance property of an anti-corrosion diffusion layer with catalytic property, and the electrolytic property and the stability of a battery are improved. The invention has the advantages of simple technique, convenient operation and excellent repeatability.
Owner:SHANGHAI JIAO TONG UNIV

Cell Culture Shaking Device and Shaking Culture Method as Cell Culture Method

The invention intends to provide a cell culture shaking device which is able to improve the efficiency of cell culture while preventing the cells from becoming damaged. The shaking devices used in cell culture apparatuses for culturing cells in flexible culture bags for storing culture suspension having cells inoculated therein includes: shaking mechanisms having operating panels for pressing the culture bags repeatedly, so that the culture suspension in the culture bags is stirred by being pressed by a plurality of projections projecting for the operating panels.
Owner:MEDINET CO LTD

Hermetically sealed storage containers

A storage container for isolating delicate items from harsh environments has a rigid exterior forming a continuous box with an open mouth. A gasketed door is hinged to the box and is provided with catches cooperating with clasps on the box to compress the gasket and close the open mouth forming a hermetic seal. A one-way valve is mounted on the container to subject the sealed interior to a pressure differential from the atmospheric condition. A pressure gauge is mounted on the container to indicate the pressure differential existing in the container.
Owner:AIR TIGHT

Composite biological coating agent and method for using the same in fresh keeping of blueberry

The invention relates to a composite biological coating agent and a method for using the composite biological coating agent in fresh keeping of blueberry, belonging to the field of food processing. The composite biological preservative film is prepared from biogenetically derived water-soluble chitosan, nisin, lysozyme and nano silicon polyoxide, propylene glycol, glycerin and citric acid in proportion. According to the invention, fresh blueberries are subject to pretreatment, are coated with chitosan composite biological preservative film, dried in cold air, and preserved in a cold storage, wherein the temperature in the cold storage is the freezing point temperature of the blueberry, and the relative humidity is 90-95%; and the blueberries can still keep special flavor, color and nutritional components after being preserved for 50 days under the conditions. The blueberries have high commercial value and good economic benefit. The method disclosed herein has the advantages of mild conditions for preparing the composite biological coating agent, simple operation, and easiness in popularization.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Long-distance transportation method of sepia esculenta adults

InactiveCN103027004AAppropriate concentrationImprove the survival rate of long-distance transportationClimate change adaptationPisciculture and aquariaEquilibrioceptionTouch Senses
The invention discloses a long-distance transportation method of sepia esculenta adults, and belongs to the field of aquatic product transportation. The long-distance transportation method comprises the steps of two-step oxygenation and two-step anesthetization, wherein the transportation time is not more than 20h; the two-step oxygenation comprises the following steps: oxygenating water for transporting sepia esculenta in a water reservoir with a nano-airstone until saturation, and oxygenating a transportation bag after the sepia esculenta adults are placed into the transportation bag; and the two-step anesthetization comprises the following steps: adding 30-60mg / L of MS-222 anesthetic to a sepia esculenta culture pond without disturbing the sepia esculenta adults, and instantly weighing and packing for transportation when the sepia esculenta adults are anesthetized until the sepia esculenta adults stop swinging the lateral fins and lose the sense of balance; and adding 5-8mg / L of MS-222 anesthetic to the water for transportation, so that the sepia esculenta adults maintain a two-stage anesthetic transportation state, namely, the sepia esculenta adults slightly lose the touch sense, fold the wrists, swing the fins naturally, and changes the body color slightly. With adoption of the long-distance transportation method of the sepia esculenta adults, the survival rate of the sepia esculenta adults during long-distance transportation is significantly increased, and the technical problem about the long-distance transportation of the sepia esculenta adults is solved.
Owner:OCEAN UNIV OF CHINA +1

Method for reducing production of preoxidized broken filament during preparation of polyacrylonitrile-based carbon fiber

The invention discloses a method for reducing the production of preoxidized broken filament during the preparation of polyacrylonitrile-based carbon fiber, characterized in that: dipping: polyacrylonitrile-based carbon fiber precursor is dipped with pure water until the water content in the precursor is 5-15wt%; or polyacrylonitrile-based carbon fiber precursor is dipped with epoxy ethane modified silicone oil emulsion or ammonia modified silicone oil emulsion until the water content in the precursor is 5-15wt% and attached amount of oil is 0.5-1wt%; and shaping: the dipped precursor is subject to shaping. Owing to the effect of surface tension of the pure water, a fiber bundle dipped with the pure water is increased in convergence property, and the generated broken filaments are adhered to the fiber bundle; a layer of protective film is formed on the surface of fiber by using the fiber bundle dipped with the oil emulsion, thereby preventing inter-fiber adhesion and doubling and simultaneously avoiding the physical damage to fibers by furnace rollers; and the shaping treatment can effectively relieve the internal stress generated in the production process of the precursor, thereby avoiding fibers from tension fracture in the process of preoxidation.
Owner:ZHONGFU SHENYING CARBON FIBER

Touch window and touch device including the same

Disclosed is a touch window including a sensing electrode (200) to sense a position, and a wire (300) to electrically connect the sensing electrode (200). A width of the sensing electrode (200) is variable in the sensing electrode (200).
Owner:LG INNOTEK CO LTD

Failure detection sensor, failure detection system, and structure

Provided is a failure detection sensor which, when attached to structural members of various structures such as buildings can easily detect the risk of the failure of the structural members, and thus the structure, before such failure occurs and has a simple structure, which leads to realization at a low price.
The failure detection sensor comprises: the first member 10 and the second member 20 provided in parallel with the first member 10 such that one end of the second member 20 is fixed to or restricted by the first member 10 and the other end of the second member 20 is not fixed to or restricted by the first member 10, having fracturing characteristics such that the second member 20 fractures during elastic deformation or plastic deformation of the first member 10. The failure detection sensor may have a compression coil spring 40 which applies a tensile force to the other end of the second member 20 on the opposite side of the one end. The first member 10 and the second member 20 are constituted of, for example, a round rod or a square rod and the first member 10 is constituted of, for example, a hollow rod. The second member 20 has a notch 24 which is a stress concentration site between the one end and the other end. The second member 20 is made of brittle materials.
Owner:HIEI KENSETSU

Device and method for manufacturing tapered optical fiber

The invention discloses a device and a method for manufacturing a tapered optical fiber. The device comprises an optical flat, a computer terminal, a carbon dioxide laser, a scanning galvanometer, a metal film plated reflector, a placing platform, two bi-dimensional accurate adjusting brackets, two optical fiber fixing parts and a plurality of pairs of weights. The placing platform is used for placing the metal film plated reflector, the two bi-dimensional accurate adjusting brackets are respectively arranged on two sides of the placing platform, the two optical fiber fixing parts are respectively fixed on the two bi-dimensional accurate adjusting brackets and are respectively used for fixing one of two ends of the processed optical fiber, the plurality of pairs of weights are used for suspending on the two ends of the processed optical fiber, the mirror surface of the reflector is right against an output end of the carbon dioxide laser, during usage, a portion to be processed with a coating layer removed in the processed optical fiber is enabled to tightly cling to the mirror surface of the reflector and is located on a focal plane of a focusing lens of the carbon dioxide laser, output laser spots of the carbon dioxide laser are controlled by the computer terminal, and the weights are quickly pulled after one scanning is completed to obtain the tapered optical fiber. Not onlythe processing time is shortened, but also physical damage to the optical fiber caused by long time action of the output laser spots on the optical fiber is avoided.
Owner:NINGBO UNIV

Fiber grating sensor based on composite grating linear array and sensing method

The invention provides a fiber grating sensor based on a composite grating linear array. The fiber grating sensor comprises fibers and a composite grating linear array, and the composite grating linear array comprises a tilted grating and a Bragg reflection grating group which are connected to the fiber in series connection in order; wherein, one group of the tilted grating is provided, and the included angle between a cross section of the fiber and the tilted grating is 3-15 degrees; the Bragg reflection grating group comprises two or more groups of Bragg reflection gratings which are etchedalong the cross section of the fiber, and Bragg reflection wavelengths of each group of Bragg reflection gratings are different; wavelengths of cladding mode of the tilted grating and Bragg reflectiongrating reflection peak are synchronously influenced by temperature and strain, and the cladding mode of the tilted grating and the Bragg reflection gratings have same temperature and strain sensitivity coefficient. Grafting writing and fabricating technology is used for periodical rewriting of refractive index of a fiber core, in order to perform sensitivity characteristic of refractive index ofthe titled grafting, and realize a refractive index fiber sensing scheme without physical structure damage and mechanical property damage, and output an environmental refractive index sensitive reflection spectra without temperature and strain influences.
Owner:WUHAN UNIV OF TECH

Method for manufacturing AlGaInP-LED (Light Emitting Diode) integrated micro display component with single-side electrode structure

The invention discloses a method for manufacturing an AlGaInP-LED (Light Emitting Diode) integrated micro display component with a single-side electrode structure, wherein the steps comprises: etching multiple first grooves which are mutually intersected on a device body; growing a lower electrode metal layer on the bottom part of each groove to form the lower electrode metal layer; growing an insulating medium layer above a lower electrode; corroding an area of the lower electrode metal layer outside a lower electrode diagram downward till reaching a certain depth in an N-shaped substrate layer in order to form multiple second grooves; filling opaque diaphragms into the second grooves and the upper part of a protection medium of the lower electrode; manufacturing an upper electrode above a light emitting unit; and electroforming upper and lower electrode leads. With the adoption of the method for manufacturing the LED array micro display device with the planar electrode structure disclosed by the invention, the process difficulty resulting from the manufacturing of the electrodes on the front face and the back face respectively can be prevented; since the manufactured micro display device is provided with the double bar type upper and lower electrodes of which the different faces are perpendicular to each other, the more even current distribution can be obtained; and therefore, the micro display device available for even luminance is obtained.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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