72results about How to "Protection from being broken" patented technology

The invention belongs to the technical field of the preparation of transmission electron microscope samples of soft brittle phototransistors, and relates to a method for preparing a transmission electron microscope sample of a soft brittle phototransistor, in particular to a method for preparing a transmission electron microscope sample of a soft brittle photo semiconducting transistor. The method is characterized in that a hard brittle semiconductor with micro Vickers hardness of over 8 GPa is used as a protective layer of the soft brittle phototransistor, wherein the roughness Ra of the ultra-smooth surface of the protective layer is below 1 nanometer, and the thickness is below 650 micrometers; sand paper of 120 to 800 meshes is adopted in the coarse grinding stage, and a membrane is ground by adopting diamond of between 0.1 and 30 micrometers in the accurate grinding stage; the protective layer is bonded with the sample by adopting a hot setting adhesive which is insoluble in an organic solvent, and a first surface of the ground transmission electron microscope sample is bonded with a substrate by adopting a hot setting adhesive which is soluble in the organic solvent; and in the final stage of accurate grinding, the transmission sample and a thin area of the protective layer are obtained by a stress-free grinding method. The method has the advantages that the preparation of the transmission electron microscope sample of the soft brittle phototransistor is realized, and high-resolution transmission electron microscope atomic images are obtained.

An adapter for test tubes is provided enabling attachment of information with identifying patient and/or test data, and which further facilitates insertion of test tubes into automated test equipment. The adapter has a cylindrical housing with two open ends into which a test tube and its attached stopper are received. In one embodiment, one end of the adapter is attached to the stopper and extends partially along the length of the test tube. In another embodiment, the adapter receives the entire test tube in a first position, and in a second position, the test tube and attached stopper are slid within the adapter housing, such that the test tube exits the housing and retains the stopper in the housing. When the assembly of the adapter and test tube is inserted into automatic test equipment, the adapter prevents the information attached to its housing associated with the sample from interfering with analysis of the sample contained in the test tube.

The invention relates to continuous monitoring of radioactive aerosols in the field of nuclear radiation detections, and specifically relates to a paper feeding and sampling apparatus for the radioactive aerosol monitor, which is capable of being used in marine environment. A filter paper tray of the paper feeding and sampling apparatus is composed of a roller pallet (19) and rollers (18). When the filter paper moves at a constant speed on the roll type filter paper tray at a certain speed, the filter paper is mainly influenced by two frictional forces, one is a rolling friction force between the filter paper and the rollers (18), the other is a sliding friction force between the rollers (18) the filter paper and the roller pallet (19), and a resultant force of the two frictional forces is far smaller than tensile strength of the filer paper after immersion, thereby guaranteeing that the filter paper is not broken even when the filter paper is affected with damp and even is wet in an extreme condition.

The invention discloses high-content liquid gingerols and a preparation method thereof. In the preparation method, on the basis of the characteristics that components in high-quality pure natural ginger resin obtained through supercritical carbon dioxide extraction have greater difference in solubility in ethanol and petroleum ether with certain concentration, liposoluble impurity components are continuously extracted from an ethanol phase with the petroleum ether, and extraction separation and purification are further performed by using diethyl ether to finally obtain the high-content liquidgingerols. The high-content liquid gingerols is light brownish red liquid with worse fluidity and has the advantages of elegant and pure fragrance and durable base note, moreover, gingerols content is higher than 90%, and residual quantities of heavy metals such as arsenic, cadmium, lead, mercury and the like are all less than 0.1ppm.

The invention relates to an intelligent cable connector. The intelligent cable connector has functions of a cable extending connector and an insulated connector. Besides, the intelligent cable connector is provided with a photoelectric extending connector which comprises semiconductive photoelectric separation fingerstalls, optical fiber protective jackets, an optical fiber connector, and heat-insulation binding belts, wherein the semiconductive photoelectric separation fingerstalls are both cylindrical heat shrinking tubes which are prefabricated with selective semiconductive material and are of one-in and two-out structure or one-in and multi-out structure, and are fastened to a metal shielding layer through the heat-insulation binding belts, the optical fiber protective jackets are metal jackets replacing a temperature measuring unit, and are matched with the photoelectric separation fingerstalls to protect temperature measuring fibers from being damaged, the number of the photoelectric separation fingerstalls is two, and the photoelectric separation fingerstalls ensure photoelectric separation. According to the intelligent cable connector, an original insulator structure and an original electric field structure are not damaged, photoelectric performance of an original product is not reduced, and meanwhile a function of on-line accurate monitoring of cable temperature is achieved.

The invention relates to a continuous-wall grab bucket. The continuous-wall grab bucket comprises a machine body, a sliding mechanism, a grab bucket supporting base and a grab bucket body, wherein the sliding mechanism is arranged inside the machine body and can slide in the vertical direction relative to the machine body, the grab bucket body is hinged to the grab bucket supporting base and connected with the sliding mechanism through a connecting rod, and a crank-sliding block mechanism is formed by the grab bucket body, the sliding mechanism and the connecting rod; an elastic device is arranged between the machine body and the grab bucket supporting base, a micro elastic vibration system is composed of the machine body, the elastic device and the grab bucket supporting base together, and the grab bucket body swings slightly when the continuous-wall grab bucket is used for construction. The continuous-wall grab bucket can improve construction efficiency of an underground continuous wall project and prolong service life of the underground continuous wall.

The invention discloses an earth block punching device and belongs to the technical field of punching machining devices. The earth block punching device comprises a rack, a telescopic rod and an electric hand drill, wherein the telescopic rod is vertically fixed to the rack, and the electric hand drill is vertically fixed to the telescopic rod; the earth block punching device is characterized in that the earth block punching device further comprises an actuator used for driving the telescopic rod to stretch out and draw back, and the actuator comprises an actuating mechanism, an adjusting mechanism and a control mechanism which are connected with the telescopic rod; and the actuating mechanism and the adjusting mechanism are connected with the control mechanism correspondingly. According to the earth block punching device, punching work is automatically completed by means of the method that the electric hand drill is controlled through the actuator, stability is good, and a drill bit can be effectively prevented from being broken off; and meanwhile, the labor strength of a worker is reduced, and working efficiency is improved.

The invention discloses a method for treating arching problem of charging by an automatic control system of a yellow phosphorus furnace electrode, comprising the following steps of firstly calculating the needed smelting time according to the charging condition and smelting process, selecting the lifting time point of the electrode hereby, and controlling all electrodes to lift upwards and downwards simultaneously by a computer when each time points arrives. The method has the active effects that the large-scale arching phenomenon forming and broken electrode accidents in the furnace can be avoided, the electrodes can be effectively protected against breaking, the normal running of the smelting process is maintained and the objects of improving electric and thermal efficiency, reducing the electric consumption for smelting and improving the output can be achieved.

The invention provides a method for recognizing electrode defection of a yellow phosphorus stove electrode automatic control system, comprising the following steps: pull difference value is calculated according to pull of 3 hoisting chains of each electrode; when pull difference value of any two hoisting chains is more than a given value, the polar electrode is judged to be in a deflective state, and then the polar electrode is needed to withdraw from the automatic control state , switches to a manual control state and gives a warning prompt. The positive effect of the method is: being capable of monitoring whether the electrode is deflective or not, effectively protecting the electrode from being snapped, maintaining normal operation of smelting process, so as to achieve the purpose of improving electric and thermal efficiency, reducing smelting power consumption and improving production.

The invention discloses aluminum air battery aluminum anode slurry for 3D printing and a preparation method and application thereof. The slurry comprises metal mixed powder and slurry, the ratio of the metal mixed powder to the slurry is 1g:(0.3-1.2) mL, the slurry comprises an antioxidant, a dispersing agent, an organic solvent and an organic adhesive, the metal mixed powder comprises Sn, In, Mg and the balance Al with the purity larger than or equal to 99.99%, and the metal mixed powder comprises Al with the purity larger than or equal to 99.99%. The viscosity of the slurry is 1-100 Pa.s; and the preparation method of the slurry comprises the following steps: (1) taking metal powder, and mixing and ball-milling the metal powder and absolute ethyl alcohol; (2) drying the ball-milled mixed solution until the alcohol is completely volatilized to obtain dried metal mixed powder; and (3) adding an antioxidant, a dispersing agent, an organic solvent and an organic adhesive into the dried metal mixed powder for ball milling, and obtaining slurry. The slurry can be applied to an aluminum anode of a 3D printing aluminum air battery. The slurry can increase the porosity of the anode, reduces the self-corrosion of the aluminum anode, is stable in performance, and improves the utilization rate of the anode.

The invention discloses an exosome secretion inducer, an exosome secretion inducing culture medium, an exosome production method using the exosome secretion inducing culture medium and application of the exosome, and belongs to the technical field of biology. The exosome secretion inducing culture medium provided by the invention only contains the following components: a basic culture medium, and four additives, wherein the additives are L-ascorbic acid or salt thereof, selenium or salt thereof, NaHCO<3> and Insulin. Although the components are simple, the exosome secretion inducing culture medium is capable of remarkably increasing yield of exosome secreted by stem cells, so that the production cost of the exosome can be significantly reduced; and moreover, the produced exosome can more effectively protect neurons from being damaged, as well as improve condition of senescent cells.

The invention relates to a grab bucket of a continuous wall. The grab bucket of the continuous wall comprises a machine body, a sliding mechanism, a grab bucket support and a grab bucket body. The sliding mechanism is arranged in the internal space of the machine body and can slide in the vertical direction relative to the machine body. The grab bucket body is hinged to the grab bucket support and connected with the sliding mechanism through a connection rod. The grab bucket body, the sliding mechanism and the connection rod form a crank-sliding block mechanism. An elastic device is arranged between the machine body and the grab bucket support, and the machine body, the elastic device and the grab bucket support form a micro-amplitude elastic vibration system jointly, so that the grab bucket body makes micro-amplitude swinging during construction of the grab bucket of the continuous wall. By means of the grab bucket of the continuous wall, the construction efficiency of the underground continuous wall project can be improved, and the service life of the underground continuous wall can be prolonged.

The invention belongs to the technical field of automobile die machining, and particularly relates to a flanging die counter pull mechanism. The flanging die counter pull mechanism comprises a fixing base assembly, a rotating pair element, a spring assembly and a flanging element. One end of the rotating pair element is arranged on the fixing base assembly and can slide along the fixing base assembly, the other end of the rotating pair element is fixedly connected with the flanging element, the spring assembly is fixed to the rotating pair element, the spring assembly is connected with an upper base, the upper base is arranged above the rotating pair element, the end of the rotating pair element is fixedly connected with the flanging element, and a material contacting point of the flanging element faces the inclined lower portion and the fixing base assembly. The flanging die counter pull mechanism has the advantages that when an upper die insert is pressed thoroughly, the stress direction is good, the folded edges of a workpiece cannot be damaged by twisting, and the precision and the service life of the workpiece are guaranteed.

The invention provides a medical linear type closer. The closer comprises a bracket, a nail anvil, a nail cabin, a transmission device and a firing handle, wherein the nail anvil and the nail cabin are arranged at the remote end of the bracket and are used for realizing sewing-up operation; the transmission device is arranged in the bracket and is used for pushing the nail cabin and nails in the nail cabin; the firing handle is pivotally arranged on the bracket through a rotating shaft and is connected to the transmission device; and a limiting prompt device is arranged between the bracket and the firing handle and used for limiting rotation of the firing handle around the rotating shaft. The closer has the main advantage of effectively prompting a user to press the handle with proper force so as to prevent the firing handle from being broken off due to overlarge force, and is safe and reliable.

The present invention relates to a packing device for express delivery of fragile articles. The packing device comprises a heating device (1), a vibrating device (2), a packing chamber (3) and a storage bin (4). A ventilation opening (31) is formed at one side of the packing chamber (3). The heating device (1) is connected to the packing chamber (3) by means of the ventilation opening (31). The storage bin (4) is located above the packing chamber (3). A duct (6) is located between the storage bin (4) and the packing chamber (3). The vibrating device is located at the bottom of the packing chamber (3). A material entrance (51) is formed in the packing carton (5), and located directly below the duct (6). Paraffin foam grains (7) are stored in the storage bin (4). The present invention overcomes the problem of high damage rate of fragile articles during transportation, and provides the packing device for express delivery of fragile articles to reduce the damage rate of fragile articles.

The invention discloses a bidirectional lightning-proof wire breakage protection method and device for an insulated wire. A grounding electrode is arranged at the low-voltage end of an insulator; an insulated wire and a current guide line are arranged at the high-voltage end of the insulator; the current guide line is connected with the insulated wire in parallel through puncture wire clamps; arcstriking electrodes are arranged on the two sides of the current guide line; protection gaps are formed between the arc striking electrodes and the grounding electrode. According to the bidirectionallightning-proof wire breakage protection method and device for the insulated wire of the invention, two sides of the insulator are each provided with one discharge protection gap; when any side is subjected to lightning overvoltage, both of the discharge protection gaps act and discharge; during discharging, the two wire clamps jointly provide fault current; the insulated wire, the current guide line and the arc striking electrodes are integrated; the structures of the protection gaps are stable; and therefore, the device of the invention has the advantages of stable performance, reliable action, strong through-current capability and the like, can effectively prevent the occurrence of lightning stroke disconnection faults of the insulated wire, ensures the safety of the insulated wire, andsolves the technical problems of poor power frequency follow current capability, unstable gap distances and low reliability of a single discharge protection gap.

A water-cooling fan comprises a shaft and a water-cooling main body. The shaft is connected with a fan impeller; the water-cooling main body is arranged on the position close to the fan impeller; a water-cooling jacket is arranged in an inner cavity of the water-cooling main body; and the part, extending into a high-temperature area, of the shaft penetrates through the inner cavity of the water-cooling main body. According to the water-cooling fan, on the one hand, the length of the shaft between the water-cooling main body and the fan impeller is shortened by forwards moving the water-coolingmain body, and thus the stability of rotating of the fan impeller is greatly improved; and on the other hand, the part, extending into the high-temperature area, of the shaft can be cooled completely, that is, the whole part, extending into the high-temperature area, of the shaft is not damaged or broken due to overheating, the mechanical properties of the shaft are also not affected, and the service life of the shaft is greatly prolonged.

The invention discloses a high-precision biopsy puncture device for the nephrology department and a use method of the high-precision biopsy puncture device, and belongs to the field of kidney puncture. According to the high-precision biopsy puncture device for the nephrology department, through the arrangement of a multi-point volume shrinkage ring, before kidney puncture is carried out, under the suction effect, the part, needing to be punctured, of a patient is in close contact with the multi-point volume shrinkage ring, and when a puncture position is stressed by a puncture needle, the multi-point shrinkage ring can remarkably intercept deformation fluctuation caused by skin stress at the puncture position, the skin deformation range is narrowed, offset caused by skin elasticity during puncture of the puncture needle is reduced, accuracy during kidney puncture is remarkably improved, and the success rate of kidney puncture is increased. Meanwhile, in cooperation with the effects of the inner extending ribbons and the puncture assisting stabbing rods, the inner extending ribbons are punctured when gradually getting close to the outer extending stabbing rods, the disinfection antibacterial liquid in the inner extending ribbons overflows to the skin of the punctured position, bacterium breeding caused by sweat generated when the position makes contact with the multi-point shrinkage ring is effectively avoided, then the punctured wound is effectively protected against infection, and potential safety hazards are reduced.

The invention discloses a process for extracting high-content liquid gingerol. The process comprises the following steps: by virtue of the characteristic that the solubility degrees of different components in natural and high-quality ginger oleoresin which is extracted by using supercritical carbon dioxide are greatly different in ethanol and petroleum ether of a certain concentration, continuously extracting fat soluble impurity components in ethanol phase by using petroleum ether, further extracting by using diethyl ether, separating and purifying, thereby obtaining high-content liquid gingerol. The high-content liquid gingerol is a light brown red liquid with relatively poor flowability, is quietly elegant and pure in fragrance and long-lasting in base fragrance, the content of gingerol is greater than 90%, and the residual amounts of heavy metals such as arsenic, cadmium, lead and mercury are all less than 0.1ppm.

The invention discloses a portable pen bag. Specifically speaking, a pen cap or a plurality of pen caps and a carriage bag are arranged on a rectangular soft leather surface; a nib protection plate is arranged at an edge of the soft leather surface; a binding belt is fixed through a rivet at the center of one end of the soft leather surface, and a or a plurality of concave grooves are mounted on the binding belt; and a snap fastener convex part is fixed at the center of the other end of the soft leather surface. The portable pen bag provided by the invention has a simple structure, can hold a variety of frequently used stationery like pens, erasers and rulers, is convenient to carry when rolled to form a cylindrical shape and prevents nibs from easy damage.