216results about How to "Protection from destruction" patented technology

An electronically commutated motor comprises a rotor (208); a stator (201) electromagnetically interacting with the rotor (208), which stator is formed with a stator winding (202, 204, 206); a power stage (122) controlling the currents flowing in the stator winding (202, 204, 206) during operation; at least one current measuring element (242, 244) for sensing a measured value for the currents (I_UPPER, I_LOWER) flowing in the power stage, and an overcurrent measuring element (152, 162) for evaluating an associated measured value and for sensing a current whose absolute value exceeds a predetermined limit value (I_MAX_UPPER, I_MAX_LOWER); a holding element (154, 164) associated with the overcurrent measuring element (152, 162), configured, when an overcurrent occurs in the associated current measuring element (242, 244), to generate an overcurrent signal (OC_UPPER, OC_LOWER), to store the signal, and to deliver a signal to the power stage (122).

An RFID tag for use with an MRI machine has an integrated circuit and structure for protecting it from damage when exposed to an intense MRI RF transmitter field. The structure for protecting the integrated circuit may include a controllable low impedance device coupled across the integrated circuit, a controllable high impedance device coupled in series with the integrated circuit, and / or frequency selective RF filter.

The invention discloses a carbon nano tube strengthening toughening silicon carbide ceramic. The ceramic is prepared from raw materials comprising silicon carbide powder, boron carbide micro powder, carbon dust, carbon nano tube, agglomerant and dispersing agent of which the weight ratio is 100:0.5-3:1.5-8:0.5-3:3-6:0.2-3.0. Hot pressed sintering or sintering-free process is adopted for preparation. A carbon nano tube strengthening hot pressed sintering silicon carbide material has the high flexural strength of 593MPa, weibull modulus achieves 14.7, reliability is substantially improved compared with general silicon carbide, excellent mechanical property of a carbon nano tube functions in the silicon carbide, and the prepared silicon carbide ceramic has excellent strengthening toughening performance.

The invention relates to a tunnel-entering construction method for a tunnel, which can reduce the construction difficulty when being applied to construction, and is beneficial to ensuring the construction safety and the structural stability. The tunnel entering method is determined according to an intersected angle of the axis of a tunnel entrance and a ground contour line, and includes orthogonal tunnel entering construction, oblique crossing tunnel entering construction, lateral tunnel entering construction and single-direction tunnel entering construction. The application condition of the orthogonal tunnel entering construction is that the intersected angle of the axis of the tunnel entrance and the ground contour line is larger than 40 degrees; and the application condition of the oblique crossing tunnel entering construction is that the intersected angle of the axis of the tunnel entrance and the ground contour line is smaller than 40 degrees. When the oblique crossing angle is 20 to 40 degrees, a half protective arch method is adopted; and when the intersected angle of the axis of the tunnel entrance and the ground contour line is smaller than 20 degrees, a shed tunnel method is adopted.

The invention relates to a method for extracting and purifying anthocyanins from blueberry pomaces. The method comprises the following steps of: mashing blueberries, separating pulps from pomaces, sequentially carrying out enzymolysis, separation, ultra-filtrated impurity removal, nanofiltration concentration and macroporous resin purification on the obtained object, recovering ethanol and an intercepting liquid through nanofiltration, and carrying out freeze drying on the intercepting liquid so as to obtain claret-colored blueberry anthocyanin powder, wherein the anthocyanins content of the blueberry anthocyanin powder is 50-90%. According to the invention, the added value of blueberry resources is improved; the process is not only simple, but also low in operating cost, therefore, the process is suitable for the large-scale production of anthocyanins; the whole process adopts a physical method, no poisonous and harmful solvents are adopted, and the energy consumption is low, therefore, the method effectively protects the environment; and medium-temperature (25-55 DEG C) enzymolysis is adopted, thereby maximumly keeping that anthocyanins not destroyed.

A semiconductor device of unipolar type has Schottky-contacts (6) laterally separated by regions in the form of additional layers (7, 7″) of semiconductor material on top of a drift layer (3). Said additional layers being doped according to a conductivity type being opposite to the one of the drift layer. At least one (7″) of the additional layers has a substantially larger lateral extension and thereby larger area of the interface to the drift layer than adjacent such layers (7) for facilitating the building-up of a sufficient voltage between that layer and the drift layer for injecting minority charge carriers into the drift layer upon surge for surge protection.

The invention provides a filling wall body capable of protecting a laneway through soft yielding in non-chain-pillar filling mining and a construction method of the filling wall body capable of protecting the laneway through soft yielding in non-chain-pillar filling mining, and belongs to the coal mine tunnel supporting and protecting technology. The filling wall body is composed of an upper portion and a lower portion, wherein the upper portion is an expansible organic foaming filling main wall body with large shrinkage, the foaming multiple ranges from 10 to 75, the uniaxial compressive strength is not more than 1.2Mpa when the volume compression amount is 80%, the lower portion is a paste-like filling main wall body, the paste-like filling main wall body is composed of the mixture of water, cement, coal ash, river sand and gangue according to the mass ratio of 1:0.3:1.2:1.7:2.8, the 1d uniaxial compressive strength is larger than 1.2Mpa, and the 28d strength is larger than 10Mpa. The filling height and the configuration proportion of the two filling main wall bodies are adjusted through calculation, therefore, the contractibility of the filling wall body can be kept within a reasonable range, the filling wall body capable of protecting the laneway through soft yielding in non-chain-pillar filling mining can better adapt to the motion law of the roof strata, and the stability of gob-side entry retaining is guaranteed.

The invention provides a manufacturing method of a flexible OLED panel. The manufacturing method includes the steps that step1, a rigid substrate (20) and a flexible substrate (40) are provided; step2, a metal layer (22) is formed on the periphery of the rigid substrate (20); step3, a supporting layer (24) is formed on the inner side of the metal layer (22); step4, the flexible substrate (40) is placed on the rigid substrate (20); step5, voltage is exerted on the metal layer (22) to heat the flexible substrate (40), so that material of the flexible substrate (40) making contact with the metal layer (22) reaches a melting point, and the flexible substrate(40) and the rigid substrate (20) adhere together; step6, an OLED element (42) is formed on the flexible substrate (40) and packaged; step7, voltage is exerted on the metal layer (22) to heat the flexible substrate (40), and after the material of the flexible substrate (40) making contact with the metal layer (22) reaches the melting point, the flexible substrate (40) and the rigid substrate (20) are separated.

The invention discloses a method for preparing a two-dimensional transition metal sulfide through a directional transfer CVD method. The method comprises the steps of firstly, spin-coating a PMMA filmon a growth substrate on which the two-dimensional transition metal sulfide grows, attaching PDMS to the PMMA film, and separating PDMS, PMMA and the two-dimensional transition metal sulfide from thegrowth substrate by soaking in deionized water; enabling the selected two-dimensional transition metal sulfide and a target position on a target substrate to be on the same vertical plane by using amicroscope, and descending a material displacement platform to enable the two-dimensional transition metal sulfide to be attached to the target position; carrying out heating and heat preservation onthe target substrate to separate PDMS from PMMA; and finally, removing the PMMA film by using acetone to realize the positioning transfer of the two-dimensional transition metal sulfide. According tothe method, the growth substrate does not need to be etched by using a strong alkali solution, the two-dimensional transition metal sulfide is safely, environment-friendly, simply and completely positioned and transferred to the target substrate, and the method can be widely applied to the preparation of novel two-dimensional transition metal sulfide electronic devices.

The invention discloses a progressive yielding combined-type extensible anchor rod and a construction method thereof. The extensible anchor rod comprises a pipe seam-type anchor rod and a resin anchor rod made of a deformed steel bar, which are mounted in anchoring holes; the resin anchor rod is longer than the pipe seam-type anchor rod, and penetrates the rod body of the pipe seam-type anchor rod; a progressive yielding piece, which is a steel spherical housing, is arranged between a pallet and a nut of the resin anchor rod; the section of the steel spherical housing takes the shape of a cavel; and a through hole, through which the rod body of the resin anchor rod penetrates, is formed on the bottom surface of the steel spherical housing. The progressive yielding combined-type extensible anchor rod can serve as not only a temporary support, but also a permanent support, so as to solve problems in supporting deep, soft and crushed surrounding rock laneway.

The invention provides a plant essence gradient extraction device, which comprises an evaporator with a built-in raw material bed layer, an exhaust pump, a gas condensing device, a circulating gas heating device and a product collecting tank, wherein the gas condensing device and the circulating gas heating device are formed by coupling a semiconductor cooling device; the cold side of the semiconductor cooling device serves as a gas condensing device and the hot side of the semiconductor cooling device serves as a circulating gas heating device; and the semiconductor cooling device is formed by connecting N stages of semiconductor cooling units in series; return crossing lines with valves are arranged at the cold side material outlet openings of the semiconductor cooling units from the 1st stage to the N-1th stage and are connected to the hot side material outlet openings of the semiconductor cooling units to regulate the temperature difference between the cold sides and the hot sidesof the semiconductor cooling units. Based on the requirements of the gradient extraction of the distillates of the plant essence, the device can provide cold energy and heat energy according to the required cooling and heating temperature, so that the device has high energy efficiency, is reasonable in energy utilization and low in cost.

The invention relates to an electrolyte for a high multiplying power lithium ion battery and preparation method thereof. The electrolyte comprises conductive lithium salts, mixed carbonic ether solvent and additives. The carbonic ether solvent without water and impurity is mixed according to a quality ratio carbonic acid ethylene eater 10-35%, propene carbonate 0-20%, methyl carbonate 25%-60%, carbonic acid methyl ethylene ester 0-35%; the conductive lithium salts are dissolved in the solvent by 0.5mol / L-1.5mol / L, adding the functional additive R[4]NBF[4]; the concentration of the additive is 0.05mol / l-1.0mol / L; R[1] and R[2] are one or one of the methyl, ethyl, propyl, butyl and methoxyl ethyl. The method for adding the functional additive in the invention enhances conductivity of the electrolyte and reduces the interface resistance between the electrolyte and the electrode to enhance the moving speed for the lithium ion battery between the electrode and the electrolyte and the multiplying power performance for the lithium ion battery.

The invention discloses a microwave radiation reclaiming method for environment-friendly high-strength reclaimed rubber, and belongs to the technical field of waste rubber reclaiming. The method comprises the following steps of: mixing waste rubber outer tire crown powder with the particle size of 20 meshes, rosin and dipentene according to a certain proportion; uniformly feeding the materials with a certain thickness on a roller way conveying device; determining the length of a roller way according to microwave radiation time; arranging a high-frequency microwave radiation device on the roller way; conveying the materials on the roller way for reclaiming the materials by microwave radiation during conveying; continuously putting the reclaimed rubber materials into a cooling device through the roller way; directly discharging the cooled materials to an open mill for performing refining, wherein the refining temperature is controlled to be 35-50 DEG C; and refining at low temperature on the open mill for 20 minutes to obtain a refined rubber sheet with smooth surface and uniform texture. A test result shows that the tensile strength of the reclaimed rubber is more than 18MPa, the breaking elongation is over 400%, and the Weigert plasticity is 0.35-0.45. The microwave radiation reclaiming method has the advantages of environment friendliness, short reclaiming time, low reclaiming temperature, energy conservation and high production efficiency.

A multilayered polymeric structure having at least two polymeric layers is provided, each layer being a mixture of a polymeric composition with carbon fibrils. The multilayer polymeric structure may include an electrically conductive material between the first and second polymeric layers. A process for making a multilayered polymeric structure for packaging electronic components is also provided. The multilayered polymeric material is used to form trays and packages for containing electrical components.

The invention relates to a method for comprehensive utilization of a biomass raw material, in particular to a method for comprehensive utilization of cellulose, hemicellulose and lignose in a biomass raw material. The method provided by the invention is that under the catalytic action of hydrogen peroxide, the biomass raw material is digested through the organic acid mixture of formic acid and acetic acid, so that cellulose, lignose and hemicellulose are respectively extracted to obtain cellulose, lignose and xylose, wherein the cellulose can be used in the textile industry.

The invention discloses a method for preparing a recombinant human endostatin sustained release microsphere. In the method, recombinant human endostatin is solved in buffer solution containing protein stabilizer to obtain an inner water phase; lacto-glycolic acid copolymer is solved in mixed organic solvent to obtain an inner oil phase; the mixed solution of the inner water phase and the inner oil phase is dispersed fast to obtain primary emulsion; the obtained primary emulsion is arranged in a stirring vessel which is filled with plant oil or mineral oil containing emulsifier to be stirred into water-in-oil type compound emulsion; the water-in-oil type compound emulsion is stirred continuously to volatilize the mixed organic solvent in the inner oil phase and then is filtered and separated by a microporous filtering film after the microsphere is solidified; the residual plant oil or mineral oil on the surface of the microsphere is washed by the solvent; and the microsphere finished product is obtained after vacuum drying. The microsphere prepared by the method has high drug loading quantity, high entrapment rate, proper burst release quantity and long sustained release period.

The invention relates to a power generation device, in particular to a vertical-axis clutch type wind power generation device so as to solve the problems that an existing large-power vertical-axis wind power generator is difficult in self-starting and braking and low in power generation efficiency. The vertical-axis clutch type wind power generation device comprises a wind wheel, a first transmission shaft, a wind wheel locking device, a first coupler, a second transmission shaft, a third coupler, a clutch, a speed increasing gear, a support, a second coupler, a power generator, a tower and two brake devices. The vertically-arranged first transmission shaft is rotationally arranged on the top of the tower, one brake device is arranged on the top of the tower, and the wind wheel locking device is arranged on the top of the part, below a flange plate, of the tower. The upper end of the first transmission shaft is connected with the wind wheel, the lower end of the first transmission shaft is connected with the first coupler, and the speed increasing gear is fixed to the support. The clutch is connected between the second transmission shaft and an input shaft of the speed increasing gear, an output shaft of the speed increasing gear is connected with an input shaft of the power generator through the second coupler, and the other brake device is arranged on a power generator shell. The vertical-axis clutch type wind power generation device is used for wind power generation.

The invention relates to a comprehensive utilization method of a biomass raw material, and concretely relates to a method for comprehensively utilizing celluloses, hemicelluloses and lignin in the biomass raw material. The method is characterized in that the celluloses, lignin and the hemicelluloses can be respectively extracted by boiling the biomass raw material through a formic acid and acetic acid mixed organic acid under the catalysis action of hydrogen peroxide in order to obtain highly pure celluloses and lignin, the combined production of furfural and biochar is realized by utilizing a residual sugar solution, and the highly pure celluloses can be used in the textile industry.

The invention discloses a coupler buffer of a railway truck. The coupler buffer comprises a coupler, a coupler tail frame, a traction buffer unit and a compression buffer unit. The coupler tail frame is fixedly connected with the coupler, the traction buffer unit is arranged inside the coupler tail frame, the compression buffer unit is connected with the bottom of the coupler tail frame, the traction buffer unit comprises a plurality of pairs of overlapped traction buffer single units, first positioning grooves are formed in contact surfaces of each pair of traction buffer single units, and first positioning protrusions which are matched with the corresponding first positioning grooves are arranged on the contact surfaces of each pair of traction buffer single units. The traction buffer unit is compressed when realizing a buffer effect, and the first positioning protrusions on the traction buffer single units are inlaid in the first positioning grooves in a compression procedure, so that the traction buffer single units cannot transversely move relatively, and the integral traction buffer unit only can longitudinally move. The coupler buffer has the advantage that transverse movement of the traction buffer unit of the coupler buffer can be effectively prevented when the traction buffer unit moves longitudinally, so that the coupler buffer can be effectively protected against damage.

An electronic cigarette comprises a main body. A smoking end, an atomization assembly for atomizing tobacco oil, and a battery assembly for powering the atomization assembly are arranged on the main body. A bottle for storing the tobacco oil is arranged at one end of the main body, away from the smoking end. The atomization assembly is arranged between the smoking end and the bottle. The bottle and the battery assembly are in parallel. An electrical connection component is arranged between the battery assembly and the atomization assembly. One end of the electrical connection component is connected to the battery assembly while the other end of the electrical connection component is resiliently abutted against a side wall of the atomization assembly. Easy assembly, stable and reliable electrical connection, and a great reduction to the possibility that the user sucks the tobacco oil are realized in the electronic cigarette.

The invention relates to a cable which comprises a conductor, an insulator, wrapping tape and an outer covering layer. The periphery of the conductor is wrapped by the insulator, the wrapping tape is formed by foaming PP materials, a plurality of bubbles are formed inside the wrapping tape, the hardness of the wrapping tape is low, the cable is flexible, and is easily bent, when the cable is extruded, stress buffer can be provided, the conductor is protected against damage, in addition, a dielectric constant of the wrapping tape is lower, the resistance of the cable and the signal losses can be easily reduced, and the transmission quality of cable signals can be improved.

A multilayered polymeric structure having at least two polymeric layers is provided, each layer being a mixture of a polymeric composition with carbon fibrils. The multilayer polymeric structure may include an electrically conductive material between the first and second polymeric layers. A process for making a multilayered polymeric structure for packaging electronic components is also provided. The multilayered polymeric material is used to form trays and packages for containing electrical components.

The invention relates to a method for extracting cellulose from a biomass raw material and co-producing biochar. According to the method, under the catalytic action of hydrogen peroxide, the cellulose is extracted by stewing the biomass raw material through organic acid consisting of methanoic acid and acetic acid, pickling, washing, bleaching and the like, and the biochar can be co-produced at the same time. Due to rational technology parameters, the whole technological line is suitable for wood raw materials and grass raw materials, so that the purity of the obtained cellulose is high; and the alpha-cellulose content is above 90 percent.

The invention provides a method for improving the coercive force of an Sm5Co19 alloy through step-by-step doping, belonging to the technical field of function materials. The method comprises the following steps of: uniformly mixing alloy ingot crushing powder and Hf powder through ball-milling, then uniformly mixing ball-milling powder and multi-walled carbon nanotubes (CNT), and finally, carrying out sinter molding on the mixed powder by using a spark plasma sintering method to obtain an Sm-Co-Hf-CNT series block material taking Sm5Co19 as a substrate. The alloy block material obtained by the method has high coercive force.

A disclosed encounter monitoring method includes: receiving an alert from an encounter monitoring application executing on a first user's personal communications device; responsive to said alert, determining a location of the first user's personal communications device and proximity for personal communications devices of other users of the encounter monitoring application to the location; automatically sending to the personal communications devices of one or more users nearest to the location a request to approach the location and observe; collecting and storing a streamed recording from the first user's personal communications device and any streamed recordings from the personal communications devices of users complying with said request; associating encounter information with each recording, said encounter information including at least date, time, location, and any identified participants; grouping together those recordings relating to a common encounter; processing grouped encounter recordings and associated encounter information to associate each encounter with any participants that are official representatives of a government or institution; compiling, from the encounter information, incident statistics for at least one of: an official representative, a department, a jurisdiction, or a state; and reporting said incident statistics in tangible form to the first user.

The invention relates to a comprehensive utilization method of biomass raw materials, in particular to a method of utilizing the biomass raw materials to make paper pulp, to recover lignin and to co-produce furfural and biological carbon. The method comprises the steps that mixed organic acid of formic acid and acetic acid is utilized to boil the biomass raw materials by the catalytic action of hydrogen peroxide; in a process of making the paper pulp, the lignin in black liquor is recovered; and a residual sugar solution is utilized to co-produce the furfural and the biological carbon. According to the utilization method, reasonable technological parameters are designed to ensure that a whole technological route is simple; the whole technology is applicable to wood raw materials and grass raw materials; a follow-up bleaching technology of the technological route is simple; and the obtained paper pulp has good drainability.

The invention discloses a preparation method of egg white protein source assistant antihypertensive peptides, and relates to a preparation method of antihypertensive peptides. The method solves the problems of heavy workload of desalinization processing of the traditional pepsin hydrolysis separation method in the preparation process, venomous eluent acetonitrile, long processing period and high reaction end temperature of a chymotrypsin hydrolysis separation method. The method comprises the following steps of: stirring egg white with proteinase for hydrolyzation under the conditions that the pH value is 5 to 8 and the temperature is 30 to 50 DEG C, then sequentially desalting hydrolyzate through strong acid cation exchange resin columns and strong basicity anion exchange resin columns, and filtering effluent liquid through an ultrafiltration membrane and purifying the effluent liquid through gel filtration pre-installed columns Superdex Peptide 10-300GL to obtain the egg white protein assistant antihypertensive peptides. Molecular weight distribution of the antihypertensive peptides is from 200Da to 2282Da, the antihypertensive peptides have nutrition and blood pressure lowering effect, the preparation conditions are mild and simple, the workload of desalination is small, and the antihypertensive peptides can be used as health-care food for patients with elevated blood pressure.

The invention relates to a low-temperature plasma preparation method of nitride fluorescent powder. The chemical general formula of the nitride fluorescent powder is M(1-x)AlSiN3:xEu<2+>, wherein M is Ca, Sr or Ba and x is greater than or equal to 0.005 and less than or equal to 0.20. A nitride fluorescent powder material is synthesized at an ordinary pressure by carbon thermal reduction and residual carbon in the material is removed by adopting a low-temperature plasma decarbonizing technique. The method provided by the invention has the advantages and positive effects that the low-temperature plasma preparation method of the nitride fluorescent powder is relatively simple in preparation condition, raw materials are easily available, the decarbonizing process is efficient and energy-saving, and the nitride fluorescent powder material is prevented from being damaged, so that the production cost of the nitride fluorescent powder is extremely lowered and the light emitting performance of the material is ensured, thereby facilitating popularization and application of the nitride fluorescent powder in the field of illumination and display.

The invention discloses a method of producing environment-friendly regenerated rubber via low-temperature desulfurization. The method includes the steps of: 1) low-temperature desulfurization througha desulfurization tank or an internal mixer: feeding rubber powder, a composite regenerating activator, and a Mooney stabilizer into the desulfurization tank or internal mixer, performing pressurizedmixing for a certain time, adding an environment-friendly softener such as rosin, performing pressurized mixing for a certain time, heating the material to 120 + / - 5 DEG C for desulfurization regeneration; 2) after regeneration for a certain time, cooling the material to lower than 70 DEG C, discharging the material into a cooling stirrer; 3) at 120 + / - 5 DEG C, delivering the material to a doublescrew plasticizer, cooling the material and discharging the material to a storage plate, and delivering the material to a refiner; 4) circulating the rubber at 40 DEG C in a thin-passing manner for 5min, and automatically cutting and weighing the rubber. The technology has outstanding economic and social benefits.

The invention discloses a tea stem screening device for preventing damage to tea leaves, which comprises a feeding funnel, a slide rail, a door panel, a collecting box and a support frame, the feeding funnel is located at the top of an outer casing, and the feeding funnel is connected with the screening device. The top of the device is connected, the two sides of the screening device are provided with pulleys, and the bottom surface of the screening device is provided with a hook and a fixed block, the collection box is connected with the screening device through a hook, and the fixed block is connected by The plate is connected with the eccentric wheel, the eccentric wheel is provided with a driven wheel, and the driven wheel is connected with the driving wheel through a belt, the support frame is fixed on the inner wall of the outer shell, and the connection mode of the support frame and the eccentric wheel is as follows: Bearing connection, the motor is provided with a driving wheel. The tea stalk screening device for preventing damage to tea leaves is provided with slide rails, and the shape and structure of the slide rails are "L"-shaped structures, which facilitates the up and down vibration of the screening device, and at the same time, the short side at the bottom of the slide rails can restrict the pulley from sliding out rails.