64 results about "Total/mechanical" patented technology

Methods and devices are provided that are effective to remove an obstruction in a human airway and / or maintain an open airway. The methods and devices are particularly useful for patients suffering from snoring and / or OSA, and / or preventing upper airway obstructions in patients undergoing anesthesia. In one embodiment, the device includes a mouthpiece that is adapted to form a substantially sealed cavity within a human mouth, and a hollow elongate member having a first end that is coupled to the mouthpiece and that is in communication with the substantially sealed cavity, and a second end that is adapted to be coupled to a negative pressure generator. In use, a negative pressure generator can be attached to the hollow elongate member to create a negative pressure in a human mouth in response to an obstructed airway, thereby removing the obstruction. In particular, this device is effective to counteract the collapse of a patient's soft tissues of the upper airway to reopen the airway. The mouthpiece can also be used in combination with a nasal mask. In another embodiment, the oral appliance above also comprises a nasal mask, wherein the nasal mask provides a means of ventilation support, including but not limited to total mechanical ventilation, positive-end expiratory pressure, or continuous positive airway pressure. In use, such a device can provide complete patient ventilation and maintain an open upper airway.

The invention relates to a square wave three phase brushless permanent magnet dc motor. In order to solve the problems existed in the prior square wave permanent magnet motor and sine wave permanent magnet motor, a magnetic pole number 2P is equal to 8 on a rotor iron core; a slot number Z is equal to 12 of a stator iron core, twelve teeth comprises three big teeth, three middle teeth and six small teeth;a mechanical angle ratio of the big teeth is 50 degree + / - 5 degree, the mechanical angle ratio of the middle teeth is 40 degree + / - 5 degree,the mechanical angle ratio of the small teeth is 15 degree + / - 5 degree,and a total mechanical angle ratio of one big tooth plus one middle tooth plus two small teeth is equal to 120 degree.The three phase concentrated windings respectively wind on the big teeth and middle teeth, each phase only has two concentrated windings and the three phase motor only has six concentrated windings. The motor can generate a stable torque when driven by a three phase square wave current and a torque fluctuation index is equivalent to that of the sine wave permanent magnet. The motor of the invention has a series of advantages of minimum winding end, minimum air gap, minimum material, minimum locating torque and minimum loss or the like.

Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and / or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with low mechanical energy input. In some variations, the process includes fractionating biomass with sulfur dioxide or a sulfite compound and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and / or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and / or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

The invention discloses a visualized narrow rectangular natural circulation system and belongs to the field of thermo-technical waterpower safety. A circulation working medium in the system is water and a water flowing phenomenon can be observed and recorded through a visualized window. The specific flow is as follows: a loop of the system is used for heating the working medium water by a heating section, so that a rectangular channel is heated and boiled; then the working medium water is cooled by a condenser at the top and flows through a lower descending section; and a pre-heater arranged at the bottom is used for pre-heating to generate poor density and realize natural circulation. When the visualized narrow rectangular natural circulation system is operated, the flowing phenomenon of the visualized window can be observed. The system can be successfully manufactured after strict and accurate design and calculation. The visualized narrow rectangular natural circulation system has the beneficial effects that the heating section has a visualized quartz glass window with the length of 1000 mm so that the long-period operation under a certain pressure and a higher temperature is realized; and the system is safe and reliable and is good for total mechanical equipment configuration, engineering experiments and thermo-technical waterpower scientific researches.

A meta-material vibration energy harvester includes a housing element encapsulating a multiplicity of oscillators capable of harvesting a significant percentage of the total mechanical energy diffusely distributed throughout the vibrating structure, the harvester design resulting in a rapid transfer of mechanical energy entering it via the housing element from the element to the oscillators wherein the energy remains trapped while accumulating over an extended time, the percentage of energy transfer primarily depending on the ratios of the sum of the oscillator masses to the sum of the housing mass and of the measure of the mass of the vibrating structure and of the width of the band spanned by the oscillators to its center frequency, both the relevant measure of the vibrating structure mass and the values of the mass and frequency ratios that maximize the percentage of internal energy transfer depending on the harvesting scenario.

This invention relates to a kind of preparation method of cubic boron nitride compound material. Mixing the cubic boron nitride grain and alloy braze powder and binder and coating it on the surface of steel substrate, then heating by vacuum brazing can form the cubic boron nitride layer on the surface of steel substrate. The alloy brazes powder composed by the following elements (Wt. %): Ti 5-15, Sn 6-12, remains Cu. The cubic boron nitride compound layer has the high combination intensity can bear higher temperature and has higher total mechanical character.

A suicide cap structure and method of fabricating a suicide cap having a low sheet resistance. The method provides a semiconductor substrate and a MOSFET structure comprising a gate insulator on the substrate, an Si-containing gate electrode on the gate insulator layer, and source / drain diffusions. Atop the gate electrode and source / drain diffusions is formed a layer of metal used in forming a silicide region atop the transistor gate electrode and diffusions; an intermediate metal barrier layer formed atop the silicide forming metal layer; and, an oxygen barrier layer formed atop the intermediate metal barrier layer. As a result of annealing the MOSFET structure, resulting formed silicide regions exhibit a lower sheet resistance. As the intermediate metal barrier layer comprises a material exhibiting tensile stress, the oxygen barrier layer may comprise a compressive material for minimizing a total mechanical stress of the cap structure and underlying layers during the applied anneal.

The invention discloses a visual narrow rectangular channel aerosol motion deposition system which belongs to the technical field of multiphase flow. In the system, mainstream gas is supplied by a fan and is heated by a heater; an aerosol generator is added with small solid particles or liquid droplets by a branch circuit to form a disperse system; the disperse system is cooled when passing through a visual section and is finally discharged by a tail gas purifying device; and the observation and measurement on fine particles are implemented by utilizing aerosol observing equipment through the visual section. The system is mainly characterized in that the visual section is provided with a quartz glass window with the length of 1,000mm, so that the observation and the measurement on the integral section of continuous motion of the fine particles are implemented; and the system is safe and reliable and various parameters such as the temperature, the flow, the concentration and the like can be regulated. The system is beneficial to research on the aspects of subjects of a total mechanical equipment structure, the multiphase flow, the environment protection, the aerosol motion, the thermophoresis effect and the like.

The invention discloses a method for measuring a pumped storage power station energy production / a motor rotor rotating inertia, which trips off a motor switch and a dynamo magnetic blow-out switch suddenly in a manner of phasing operation to maintain the pressing sate; measures the moderating process of the rotor of the machine set in the pressing state (a turning wheel of a water turbine rotates in pressed air without contacting water body), records time of rotate speed reducing from rated speed to 90% of rated speed; measures the input electric power (active power), the tolerance of a dynamo stator and a rotor, and the winding temperature of the stator and the rotor in the phasing operation of the machine set; calculates iron loss and copper loss of the motor in phasing operation by using the iron loss and copper loss of the stator and the rotor obtained by the experiment of the motor stator, rotor tolerance and motor efficiency; difference value between sum of loss of the two phases to the input electric power of phasing operation of the machine set is the total mechanical consumption of the rotor of the machine set in the moderating process in the pressing state. The total rotation inertia of the machine set can be obtained by total mechanical consumption power and moderating time.

The present invention provides a continuous method of preparing a liquid extract of cereal grain by comminuting cereal grain at a rate of at least 100 kg of dry cereal grain per hour and extracting the comminuted cereal grain with a liquid, said method comprising:continuously combining cereal grain with a liquid;continuously disintegrating the grain particles contained within the liquid by colliding freely suspended grain particles with one or more rotating blades, thereby producing a milled suspension;continuously transferring at least a part of the milled suspension, optionally after further treatment, to a separation device for separation into spent grain and liquid extract;wherein the one or more rotating blades are rotating at a tip speed of at least 10 m / s; the total mechanical energy transferred into the milled suspension by the one or more rotating blades is in the range of 5-1000 kJ per kg of dry cereal grain; and the distance between a tip of said one or more rotating blades and the axis of rotation is in the range of 2-25 cm.The invention also provides a system for comprising a milling apparatus and a separation device suitable for use in the aforementioned method.The present method and system offer several advantages, including savings on capital expenditure and maintenance, short milling times and hygienic design.

A method for determining a total mechanical load of a wind turbine is provided. A present load signal indicative of a present load of a wind turbine base structure is obtained, wherein the present load acts in a present angular direction. A first present load and a second present load are derived based upon the present load signal and the present angular direction, wherein the first present load is associated with a first angular sector of the turbine and the second present load is associated with a second angular sector of the turbine. Further, a total mechanical load is derived based upon the first present load and the second present load.

The invention provides a constraining control method for an under-actuated system. According to the method, total mechanical energy of the system is analyzed in detail, the coupling relation between a small rotating ball and a translation oscillation trolley is improved through kinetic energy reshaping on the basis of the total mechanical energy, the small rotating ball can be stabilized in a balance point position through potential energy reshaping, the rotation range of the small ball is guaranteed in the control process, and finally, a constraining non-linear controller is put forward on the basis of a constructed energy function. The control method aims to overcome the defect that only steady-state performance can be guaranteed, but certain characteristics of transient-state performance of a system cannot be guaranteed in conventional control, realizes quick stabilization control for a TORA (translation oscillators with rotating actuator) system and can guarantee that the small rotating ball rotates in a preset range. Through simulation contrast with an existing method, the method can guarantee that the system is stabilized in a stable balance point position and can also guarantee that the small rotating ball rotates in a constrained range, and a circulation phenomenon cannot occur.

The embodiment of the invention, which relates to the field of automatic control, discloses a self-learning method of a motor pole-pairs number and a driver. The method comprises: a motor rotor is rotated to be at a 0-degree electric angle position by field oriented control (FOC); a fixed electrical angle value is given to the motor at the 0-degree electric angle position, so that the motor rotorshakes in a reciprocating manner at the 0-degree electric angle position according to the fixed electrical angle value; according to the fixed electrical angle value and the number of times of reciprocating shaking of the motor, a total electric angle value is calculated, and a total mechanical angle value is calculated according to a mechanical angle that is fed back by an encoder when the motorshakes in a reciprocating manner to the fixed electrical angle value each time; and on the basis of the total electric angle value and the total mechanical angle value, the motor pole-pairs number isobtained. Therefore, even when the motor pole-pairs number can not be obtained from a motor production manufacturer, learning is carried out automatically by the driver to obtain the pole-pairs numberof the motor, so that the motor obtains an optimal output effect successfully.

The mechanical load on a rolling element bearing is determined from the deformation of the rolling element bearing. The local deformation caused by the rolling contact forces is used to determine an average contribution to the mechanical load in order to average out the effect on the deformation as a result of the spread in diameter of the rolling elements of the bearing. The global deformation of the rolling element bearing is determined to calculate a dynamic contribution to the mechanical load. The dynamic contribution takes into account the variations of the mechanical load on the relevant time-scales that have been omitted from the average contribution as a result of the averaging operation. The total mechanical load is the sum of the average contribution and the dynamic contribution.

The invention discloses an electric conductor with a graphene core and a preparation method of the electric conductor with the graphene core. The electric conductor with the graphene core comprises the graphene core surrounded by a sheath, wherein the graphene core is formed by compressing graphene particles. By the electric conductor with the graphene core, the skin effect can be reduced to the maximal extent; the conductivity can be improved; the transmission loss is reduced; and the total mechanical load of a transmission line is reduced.

The invention discloses an injection dispensing bin which is used for storing injection and comprises a plurality of cases. The cases are circumferentially arranged on a conveyor belt, the conveyor belt can be driven by a first driving unit to advance, and the multiple cases can be driven by the conveyor belt to sequentially and circularly advance. The invention further discloses an injection dispensing device with the injection dispensing bin. Compared with the prior art, the injection dispensing bin and the injection dispensing device have the advantages that full-mechanical dispensing operation can be carried out on the injection, and accordingly the injection dispensing reliability and efficiency can be improved.

The invention provides an intelligent full mechanical hand bending machine which comprises a machine frame part, a stroke adjusting mechanism, a slide block mechanism, a synchronizing mechanism, a rear material blocking mechanism, an upper die and lower die centering device, a hydraulic system and an electrical system. A feed and discharge mechanical hand is connected to the bending machine, and comprises a stand column, a transverse (X axis) bearing, a vertical (Z axis) beam, a control system, a feed and discharge cabin system and a claw system. The intelligent full mechanical hand bending machine has the technical advantages that the mechanical hand is used for various types of operation of the bending machine, labor can be reduced and saved, efficiency can be improved, cost can be reduced, the product quality can be improved, safety can be improved, and the intellectualization of the bending machine is achieved.

The invention discloses a drawing force testing device for sensors, and a using method of the drawing force testing device. The drawing force testing device comprises a testing workbench, wherein twolinear electric cylinders are fixed to the upper end of the testing workbench, a fixing bottom plate arranged between the linear electric cylinders is arranged at the upper end of the testing workbench, and the sensors are arranged at the upper end of the fixed bottom plate; hydraulic cylinders are arranged at the upper ends of supporting frames, clamping pieces are arranged at the bottom parts ofhydraulic rods, and air cylinders are fixed to the bottom ends of supporting plates. The drawing force testing device drives the air cylinder to clamp and fix the sensors by means of C-shaped clamping plates, the sensors cannot be damaged in the fixing process, the friction force between the rubber pad and the side end portion of each sensor is increased, and the hydraulic cylinder is driven to be lifted upwards by means of the hydraulic cylinder after fixing is firm, thus testing is achieved, and automatic operation is achieved. Meanwhile, the plurality of sensors are fixed on the fixed bottom plate, feeding is carried out through driving of the linear electric cylinders before testing, manual operation is not needed, full-mechanical operation is carried out in the feeding and testing process, the fatigue strength of operators is reduced, and the testing efficiency is improved.

The invention provides automatic press-fitting equipment for a shaft sleeve of a transverse frame body. The automatic press-fitting equipment comprises a clamping base, a translation mechanism, a carrying mechanism, a rotating mechanism and a jacking mechanism, wherein the clamping base is provided with a structure for clamping and positioning the transverse frame body and a shaft sleeve mountingpair, and the shaft sleeve is fed on the shaft sleeve mounting pair; the translation mechanism comprises a translation base arranged on a translation guide rail in a sliding manner; the carrying mechanism comprises a carrying guide rail and a clamping part; the rotating mechanism is arranged at the bottom of the first end of the translation guide rail and can rotate the clamping base on the translation base by a preset angle; and the jacking mechanism comprises a first jacking part and a second jacking part and is used for applying a jacking force to the shaft sleeve mounting pair, jacking theshaft sleeve into a shaft hole and generating pressure through interference fit to fix the shaft sleeve. According to the invention, the shaft sleeve press-fitting operation of the first shaft hole and the second shaft hole of the transverse frame body can be completed in a fully mechanized mode, the automation degree is high, the shaft sleeve press-fitting efficiency of the transverse frame bodyis high, and the precision and quality can be guaranteed at the same time.

The conventional equivalent modeling mode of a wind power plant is single-machine equivalent modeling. A plurality of wind power units in the wind power plant are equivalent to one machine, and the sum of the machine power of the plurality of individual wind power units is the total mechanical input power of the wind power plant. As the large wind power plant is big in occupied area and numerous in quantity of the wind power units, and the wind speed, terrain air temperature and other factors of the environments where the different wind power units are located are very different from one another, a big error may be caused by simply adopting the single-machine equivalent modeling mode, thus being unreasonable to a certain extent. The aim of the invention is to provide a new wind power plant clustering classification method aiming at modeling of the large wind power plant. The classification clustering of the wind power units of the large wind power plant is objectively performed by selecting the multi-machine equivalent mode and adopting the clustering analysis algorithm based on numerical taxonomy. Compared with the conventional wind power unit classification method, the wind power plant clustering method based on CLARANS clustering has the advantages of being objective, stable and high in feasibility.

The invention relates to a two-step forming method for designing and manufacturing a composite material gas cylinder and an application of the method, and belongs to the design and manufacture field of pressure containers. The two-step forming method comprises the following steps: decompressing a designed work pressure P of the gas cylinder into a basic work pressure P and an additional work pressure P; carrying out first-step processing forming on the gas cylinder according to the basic P and the additional P respectively, wherein the self-tightening operation of the gas cylinder is completed during the first-step processing forming process; then carrying out second-step winding and curing processing, and properly adjusting the maximum temperature during curing so as to obtain a final forming product. The using amount of an aluminum alloy material as a lining is reduced, and the structural weight is optimized; the self-tightening pressure of the gas cylinder is reduced, and the fracture rate of fiber and resin during the self-tightening process is reduced, and thus the total mechanical property of the gas cylinder is ensured. Moreover, the bearing load of related equipment is reduced, and the service life is prolonged.

The invention relates to the technical field of new energy automobiles. The invention aims to provide a tank changing method for a tank changing station. The tank changing method comprises the steps of A tank body dismounting and B tank body mounting. The step A of dismounting the tank body comprises the steps of A1 a vehicle being in place; A2 a tank changing system being in place; A3 dismounting the tank body; and A4 sending back the tank body. The step B of mounting the tank body comprises the steps of B1 tank taking; B2 canning; and B3 finishing. Automatic and intelligent operation of tank replacement is achieved, and the labor cost is greatly reduced. The total steps are few, the tank replacement process is directly completed at the bottom of the vehicle, no other auxiliary equipment is needed for elevating the vehicle, the process is simple, and safety is high. And the full-mechanical operation is adopted, the accuracy during tank replacement is extremely good, and the tank replacement speed is greatly increased. A new thought is provided for movable tank replacement, tank replacement of a hydrogen fuel automobile is not limited by geographic positions, and the tank replacement flexibility of the hydrogen fuel automobile is improved.