215results 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 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.

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 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 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 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.

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 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 provides a preparation method of a rhizoma polygonati single-component beverage. The preparation method is characterized by comprising eleven steps of immersing and steaming, boiling and extracting, filtering, evaporating, concentrating, preparing an ingredient solution, preparing a maltose solution, preparing a thick rhizoma polygonati prepared mixing solution, preparing a thick rhizoma polygonati prepared solution, preparing a diluted rhizoma polygonati prepared solution, and preparing a finished product. The preparation method has the beneficial effects that rhizoma polygonati concentrated liquid is prepared from rhizoma polygonati tablets through immersing, steaming and boiling, and beneficial components in rhizoma polygonati can be collected to the greatest extent; the concentrated liquid is prepared at proper temperature and the beneficial components in rhizoma polygonati can be prevented from being damaged to the greatest extent; the concentrated liquid is prepared into the thick prepared solution by a proper method and the thick prepared solution is further prepared into the diluted prepared solution, so that the beneficial components including rhizoma polygonati polysaccharides and the like can be sufficiently dissolved in the liquid; and after people drink the prepared rhizoma polygonati beverage, the beneficial components including rhizoma polygonati polysaccharides and the like can be rapidly and sufficiently absorbed by a human body, and the aims of delaying ageing, preventing cardiovascular diseases and preventing sub-health can be realized very well.