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115 results about "Homoiothermy" patented technology

Any homoeostatic process in which an organism maintains its internal body temperature at a relatively constant value. This is achieved by using metabolic processes to counteract fluctuations in the temperature of the environment. [ISBN:0192801023]

High-speed precise electric spindle cooling system

The invention relates to the technical field of an electric spindle, in particular to a high-speed precise electric spindle cooling system which comprises an electric spindle shell cooling part, an electric spindle core cooling part and a bearing spindle core lubricating/cooling part, wherein when the electric spindle works, the temperature rise change can be controlled within +/-1 DEG C. The concrete scheme is as follows: a ring sleeve type heat pipe cooling mode is arranged at the electric spindle shell part, and the heat of the shell is taken away quickly by increasing the cooling contact surface; the spindle core cooling part is provided with symmetrical bar-type heat pipes which are uniformly distributed on the spindle core, and the spindle core is cooled by use of the high-speed conductivity and homoiothermy of the heat pipes; and a spindle core liquid lubricating/cooling mode is adopted at the bearing lubricating/cooling part, and makes full use of the high rotation speed of the high-speed electric spindle to generate centrifugal force so that the lubricating/cooling liquid is uniformly distributed on the bearing roller. The temperature stability of the electric spindle can be ensured, the processing precision error caused by thermal expansion of the electric spindle is minimized, and the service life of the spindle and the spindle bearing can be prolonged at the same time.
Owner:DONGGUAN UNIV OF TECH

Heating furnace for creep and rupture life tester

The invention discloses a heating furnace for a creep and rupture life tester, which comprises an operating handle, a fixing piece, an outer furnace shell, an inner furnace shell, a heat-preservation layer and a fire-retarding layer, wherein the heat-preservation layer adopts aluminosilicate fiber cotton; a heat-resistance layer in the core part of the heating furnace has a tubular structure; the inside diameter of the tubular heat-resistance layer ranges from 100 to 110 millimeters and is divided into upper, middle and lower three layers; each layer of the heat-resistance layer is formed by joining two high-alumina bricks with a half-'tubular' structure and the layers of the heat-resistance layer have a consistent coaxiality with the axis of the furnace shells; the inner wall of each layer of the heat-resistance layer is spirally and uniformly distributed with 16 circles of furnace wires; the diameter of the furnace wires is 5 to 6 millimeters; the screw pitch is 10 millimeters; the spiral height is 160 millimeters; and the furnace wires on the inner wall of each layer of the heat-resistance layer are led out of the furnace shells respectively to be connected with a power supply. Compared with the prior art, the heating furnace has the advantages of safety, economy and practicality, can be used for heating in creep and rupture life tests of various metal materials at 100 to 1,200 DEG C and can truly reflect the homoiothermy of a whole test process.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS

Constant-temperature conveying pipeline device with function of preventing chemical material liquid from precipitation

Disclosed is a constant-temperature conveying pipeline device with the function of preventing chemical material liquid from precipitation. The constant-temperature conveying pipeline device with the function of preventing chemical material liquid from precipitation comprises a stainless steel outer pipe, spiral heat conducting ribs, a metal heat exchange inner pipe, flow turbulence protrusions and flow turbulence columns. A circulation cavity is formed inside the metal heat exchange inner pipe. A plurality of flow turbulence protrusions are formed in the inner wall of the metal heat exchange inner pipe in an integrated casting mode, a flow turbulence groove is formed between every two adjacent flow turbulence protrusions, and a plurality of flow turbulence columns are arranged inside the metal heat exchange inner pipe at equal intervals. The stainless steel outer pipe sleeves the metal heat exchange inner pipe, a water-bath heating cavity is defined between the stainless steel outer pipe and the metal heat exchange inner pipe, and the stainless steel outer pipe and the metal heat exchange inner pipe are connected through the spiral heat conducting ribs. The mixing sufficiency of chemical material liquid is enhanced, the conveying efficiency and the conveying effect of chemical material liquid are improved, material liquid is prevented from precipitation and is sufficiently mixed. The metal heat exchange inner pipe is uniformly heated, and constant-temperature heating and conveying of chemical material liquid are guaranteed. The heat insulation effect is good, and the constant-temperature conveying pipeline device with the function of preventing chemical material liquid from precipitation is suitable for constant-temperature conveying of chemical material liquid.
Owner:深圳市泽同国际商务服务有限公司

Room temperature nitric oxide adsorption/ catalytic oxidation catalyst and preparation method thereof

The invention provides a room temperature nitric oxide adsorption/ catalytic oxidation catalyst, and is characterized in that: the catalyst uses manganese cerium solid solution as an active component, the manganese cerium solid solution content is 100%, and the molar ratio of manganese to cerium is 2:3-1:1. The preparation method comprises the following steps: dissolving ammonium ceric nitrate and potassium permanganate in deionized water; dissolving manganese nitrate in the deionized water; dissolving a potassium hydroxide solution in the deionized water; pouring a manganese nitrate solution into an ammonium ceric nitrate and potassium permanganate mixed solution, using a mechanical stirrer for full and evenly stirring; heating the mixed solution to 70 to 80 DEG C for homoiothermy; dropwise adding a potassium hydroxide solution until the pH is 8-9; washing and drying a obtained sedimentation, and then baking at 300-400 DEG C for 3-4 hours to obtain the room temperature nitric oxide adsorption / catalytic oxidation catalyst. The method has the characteristics of simple preparation process, high adsorption / catalytic oxidation efficiency and the like.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH

Image fuzzy identification method of standard constant temperature bath glass thermometer

InactiveCN105809168AAdd reading fuzzy identification methodGood selectionCharacter and pattern recognitionAlgorithmMorphological processing
The invention brings forward an image fuzzy identification method of a standard constant temperature bath glass thermometer. The method comprises the following main steps: acquiring a fuzzy image of the thermometer, converting the acquired fuzzy image into a gray-scale map, performing threshold processing on the gray-scale map; performing rotation correction on the fuzzy image after the threshold processing, and obtaining a liquid column position of the thermometer by use of a projection method; segmenting the fuzzy image after the rotation correction to obtain a graduation line subarea, a liquid column subarea and an indication character subarea; performing morphological processing on the subareas to obtain pixel coordinates of a graduation line and a liquid column fixed point; and performing character search on the indication character subarea to identity characters and obtain temperature information of the graduation line, and finally obtaining an indication temperature of the thermometer in the acquired fuzzy image. According to the invention, thermometer characters are identified by use of a fuzzy closeness algorithm, fuzzy closeness digital repair is performed on incomplete digits, correct identification of incomplete characters is realized, the correct rate of the identification is about 96%, and the thermometer reading accuracy can reach 95%.
Owner:佛山市质量计量监督检测中心 +1

Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter

Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side. A computing unit outputs as a measurement a flow rate obtained based on the output Vh in a flow rate region where a flow rate is larger than a predetermined boundary flow rate, and outputs as a measurement a flow rate obtained based on the output Vout in a flow rate region where it is less than a boundary flow rate. Accordingly, a flow rate is measured with good precision and sensitivity over a wide flow rate range from a trace-amount flow rate region to a comparatively large flow rate region.
Owner:SAN-A

Preparation method of polylactic acid composite material by use of oriented distribution of nano-hydroxyapatite for enhancement

The invention relates to a preparation method of a polylactic acid composite material by use of oriented distribution of nano-hydroxyapatite for enhancement, and the method is as follows: calcium nitrate, ammonium phosphate and gelatin aqueous solution are mixed for preparation of hydroxyapatite suspension by heating, PH adjusting and homoiothermy; polylactic acid is dissolved in an organic solvent and then is added to the suspension for mixing, heating and centrifugal drying to prepare hydroxyapatite-polylactic acid composite powder and granulate; and multi-channel shear extrusion deformation of an injection-molded composite molding material is performed by an equal channel angular pressing die under certain process conditions to obtain the target product. The advantages of the preparation method are that: gelatin is introduced to improve the uniform distribution of the hydroxyapatite in a polylactic acid matrix and increase the interface bonding strength; by multi-channel equal angular pressing, the rod-like hydroxyapatite can be directionally evenly distributed in the polylactic acid matrix, the comprehensive mechanics performance of the composite material can be improved, and the preparation process is simple, low-cost, and more suitable for productization.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Preparation method of clove flavor cigar with auditory effect

ActiveCN107836748ASo sweetModerate suction permeabilityCigar manufactureCigar SmokingBud
The invention provides a preparation method of clove flavor cigar with an auditory effect. The preparation method concretely comprises the following steps of picking clove according to requirements; performing cleaning and dust removal on the picked dry clove buds; performing drying through drying equipment; taking out the buds for use after the water content is lower than 5 percent; putting 5 to6 processed clove buds into the center position of a single cigar core leaf; sequentially distributing the clove buds into a line to prepare a cigar core; then, taking one leaf roll for winding the cigar core; performing fixing and shaping; then, putting the materials into a wood cigar mold for 30 to 45 minutes; finally, taking one piece of a binder leaf for well covering a cigarette bundle; usingplant glue for bonding and winding the cigar; next, putting the cigar into a refrigerator; putting the refrigerator into a constant-temperature constant-humidity balance room; controlling the temperature to be 18 to 20 DEG C and the humidity to be 65 to 75 percent; performing placement for 25 to 35 days. The prepared cigar has the slight clove flavor; during the smoking, the uniform slight clacking sound is generated at a frequency of once per 2 to 3 seconds; the sound volume is proper; the auditory effect is added for the cigar smoking.
Owner:HUBEI CHINA TOBACCO IND

Novel thermostatic water bath pot with shaking table

The invention belongs to the technical field of water bath tanks, and discloses a novel thermostatic water bath pot with a shaking table. The thermostatic water bath pot includes a water bath pot body, and a heating trough, a vibrator and a controller which are arranged in the water bath pot body. The shaking table is horizontally installed inside the heating trough and is connected to the vibrator. A water level alarm and a temperature sensor are respectively arranged on the inner wall and the outer wall of the heating trough. The temperature sensor, the water level alarm and the vibrator are all connected to the controller, which is also connected to a display screen and a control switch. By arranging the vibrator inside the water bath pot and using the controller to set swing amplitude and frequency of vibration according to intensity of a reaction, the water bath pot has multiple functions. In addition, the water level alarm can monitor the water level status in the water bath pot in real time and feeds the status back to the controller so as to guide automatic water feeding and discharging operations, thereby ensuring stable temperature in the water bath pot and improving accuracy of subsequent test results. The thermostatic water bath pot has simple whole structure and is convenient to use.
Owner:XIAN RUILIAN NEW MATERIAL CO LTD
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