122results about How to "Controllable output" patented technology

A floating type wave power generation system is characterized in that the system consists of eight sets of lever-type floating bodies and a hydraulic energy accumulation converter with the hydraulic pump function. On a floating workbench 7, eight sets of levers 2 and a floating body 1 are connected through supporting hinge bearers 10 and 11; in this way, the highly undulating displacement caused by waves can be converted to relatively lesser displacement of a piston rod 4, and the minor force that the floating body bears can be converted through the lever to the major force on the piston rod. The piston rod drives a hydraulic tank 3 to switch and transmit the hydraulic energy through a connecting oil pipe5, a high-pressure oil pipe6, a hydraulic oil tank and four no-return valves of each set to a hydraulic motor in a hydraulic power generation control chamber 9; in this way the generator is driven to work. The present system can absorb, convert and accumulate the intermittent unstable wave energy in a highly effective way and can buffer the destructive effect of waves. The floating platform can be suitable to different marine space by adjusting the length of an anchor chain 8. And in various sea conditions, kinetic energy and potential energy possessed by waves in the sea surface can be converted and accumulated as hydraulic mechanical energy by utilization of the wave drop; thus the generator is driven to unremittingly provide electric power.

The invention discloses a high-power direct-current charging machine/pile DCDC conversion device for an electric automobile and a control method of the high-power direct-current charging machine/pile DCDC conversion device. A multiphase interleaving voltage decrease and increase adjustment technology is adopted in the device, the requirements for adjustment of wide voltage input and wide voltage output are met, and through the modularized control structure design, the output of charging energy can be controlled, the output ripples can be reduced, and power and efficiency are improved. The output voltage and the current of the device can both be controlled, and the device has the protection functions of current protection, voltage protection, temperature protection, power protection, drive short circuit protection and the like; and a pre-starting current limiting module, a charging pre-starting and discharging protection module, a hardware overcurrent protection module and a fault signal processing module are additionally arranged, so that the safe reliability of the device is effectively enhanced. The device is small in ripple, high in conversion efficiency, low in cost, simple in structure, small in start current and high in safe reliability, the device can be used for high-power direct-current charging machine/pile DCDC power conversion for the electric automobile and also be used for other power and power supply equipment, and the device is suitable for being used in various power and electronic fields.

The invention provides a method for preparing activated carbon by utilizing direct coal liquefaction residue as a raw material. The method includes the steps as follows: (1) adding smashed direct coal liquefaction residue together with KNO3, KOH and absolute alcohol into water, stirring to be uniform under room temperature, and later drying the obtained mixture to obtain a dry material; (2) placing the prepared dry material in a carbonization furnace, conducting preoxidation in the atmosphere of air, conducting carbonization-activation in the atmosphere of inertia gas, and then obtaining coarse activated carbon; and (3) acid-washing and deashing the prepared coarse activated carbon to obtain finished activated carbon. The method is simple in preparation process route, uses conventional equipment and has universality to the raw material. The obtained activated carbon has not only characteristics of high specific surface area, developed micropores and low ash content, but also controllable output, higher productivity, suitability for production in batches, and better technological and economic benefits.

The invention discloses a kiwi fruit tree form with a single trunk and double main tendrils and a shaping trimming method of the kiwi fruit tree from. The trunk of the tree form is perpendicular to the ground, the height of the trunk ranges from 1.8m to 2.1m, the two main tendrils reversely horizontally extend by 2m to 3m along a row direction after being annularly crossed at a rack surface, 20 to 30 side tendrils are distributed on two sides of each of the double main tendrils like feathers, the pitch between each two side tendrils on the same side ranges from 30 cm to 40 cm, the side tendrils are perpendicular to the main tendrils to horizontal extend, and after the tree form is formed, allowance of full buds of a kiwi fruit tree garden per mu range from 10000 to 12000 after the kiwi fruit tree garden is trimmed in winters. The shaping trimming method of the kiwi fruit tree form is simple, after a tree is cultivated and formed, strong new side tendrils are reserved in summers to be used as fruit mother tendrils to cultivate in the next year, residual sprout tillers and new tendrils are removed, the fruit mother tendrils in the current year are reduced or removed when trimming inthe winter, and are replaced by the new fruit mother tendrils, branches and tendrils are bound in time, operation is easy, the quality of fruit is high, shortcomings that an existing kiwi tree form is messy, trimming is troublesome and the quality of fruit is poor are overcome, and accordingly the method is suitable for simplified trimming for a kiwi fruit tree garden by low labor intensity.

The invention relates to an amphiphilic chitosan material prepared by grafting lipophilic micro-molecular lithocholic acid on chitosan molecules and having good biocompatibility and degradability. Under catalysis of catalysts EDC and NHS, Mv64-230KDa amphiphilic macromolecular chitosan and lipophilic micro-molecular lithocholic acid are subjected to amidation reaction to form the amphiphilic chitosan material with good biocompatibility and degradability; in acidic solution with pH of less than 6.5, the amphiphilic chitosan material can rapidly form uniformly-distributed nanometer micelle with granularity of between 200 and 400 nm based on a molecule self-assembling principle under the ultrasonic condition; and an internal amphiphilic structure of the amphiphilic chitosan material is favorable for improving solubility of fat-soluble medicaments and further the bioavailability of the medicament in human body is expected to be improved..

A composite fruit juice and its processing method belong to the deep processing field of fruits. The invention aims to solve the technical problem that lipid in present fruit juice drinks is not easy to absorb. The composite fruit juice is mainly prepared by processing blackcurrant, raspberry, cherry, sea-buckthorn, Actinidia arguta, blueberry, blackberry, lingonberry, strawberry, pomegranate, mulberry, Rosa davurica, lonicera edulis and Acanthopanax Sessiliflorus. The processing method is to adopt technologies of fermentation, alcohol extraction, crushing, mixing, ultra-high temperature sterilization and the like. The composite fruit juice has a good capability of removing hydroxyl radicals and the clearance reaches up to 96.9%.

The invention discloses a robot automatic welding system for a car body and relates to the technical field of robot spot welding automation. The robot automatic welding system for the car body comprises a robot walking mechanism, an electrode dresser, a robot control cabinet, a robot, a C-shaped servo electrode holder placing rack, a C-shaped medium-frequency servo electrode holder, an X-shaped servo electrode holder placing rack, an X-shaped medium-frequency servo electrode holder and a latticed fence, wherein the robot walking mechanism comprises a walking mechanism base assembly, a movable sliding table and a support assembly, the movable sliding table is slideably arranged on the walking mechanism base assembly, the support assembly is installed on one side of the movable sliding table, the robot is fixedly installed on the movable sliding table, the electrode dresser and the robot control cabinet are installed on the support assembly, the robot control cabinet is connected with the robot, and the C-shaped medium-frequency servo electrode holder and the X-shaped medium-frequency servo electrode holder are connected with the robot through tool changers. The robot automatic welding system for the car body has the advantages that the acting stability is reliable, the repetitive accuracy is high, the labor conditions of operating workers are improved and the welding quality and labor productivity are improved.

The invention discloses a preparation method of an amphipathic gama-polyglutanmic acid nanodrug carrier. The preparation method comprises the steps of grafting hydrophobicity group on gama--polyglutanmic acid serving as a main chain, thus obtaining amphipathic gama-polyglutanmic acid derivates with good biocompatibility and degradability, and self assembling in water medium to form nano micelle with particle size of 200-1000nm. The hydrophobic nuclei-hydrophilic shell structure is beneficial to improvement of solubility of hydrophobic drug in water medium, further possibly improves the bioavailability of drugs in the body, and also can be used for load of protein and DNA. The preparation method of the amphipathic gama-polyglutanmic acid nanodrug carrier is simple and practicable, all raw materials can be industrially produced; reproducibility is good; and the amphipathic gama-polyglutanmic acid nanodrug carrier has high drug loading rate, good sustained release effect and intelligent environment response (pH-enzyme complex sensitivity) and other corresponding characteristics, as well as good popularization and application values.

A display apparatus includes a display panel displaying an image, a rear cover supporting the display panel, and a vibration generating device vibrating the display panel. The vibration generating device includes a sound generating module spaced apart from a rear surface of the display panel. Accordingly, shaking of the display panel is prevented, and heat is prevented from being transferred to the display panel.

A flywheel energy storage system for preventing power interruptions to a load from interruptions of primary power includes a flywheel supported for rotation about an axis on a bearing system, and a motor-generator having a rotor coupled with the flywheel, and having a stator with multiple armature windings and a field coil. The field coil generates flux that passes through the armature windings as the rotor rotates to produce torque for accelerating the flywheel during charging, and produces electrical power from the flywheel during discharge. The armature windings are energized by a DC buss that is supplied by a rectifier connected to primary power. The flywheel system provides instantaneous full power capability along with output control for extracting more energy from the flywheel. The field coil is oversized and is powered in standby operation to produce an armature back emf that is at least 75% of the DC buss voltage. The current to the field coil remains substantially constant during a period including immediately before an interruption and immediately after and interruption of primary power. The flywheel system uniquely utilizes an extremely large field coil, which is preferably 25-50% of the weight of the flywheel. The increased field coil size allows for both full standby energization without overheating and also reduces the armature reaction such that full power is available during a power interruption without requiring instantaneous increasing of the field coil current. In one embodiment, the field controller has a speed sensor for monitoring rotational speed of the flywheel and for varying electrical power to the field coil, without monitoring the primary power for interruptions. The field controller varies electrical current to the field coil approximately inverse linearly with the rotational speed of the flywheel during both standby and discharging operation to govern power to the field coil during standby operation such that the back emf of the armature remains substantially constant during an interruption of power.

The invention discloses a crystal grape slope TU shape pruning technology. Seedlings in the current year are planted, and short seedling segments are reserved. After sprouting, two young sprouts are selected and remained; after the two sprouts grow up, one strong branch serves as the main vine and is guided to spread onto a trellis through an inserted rod in a stretched mode, the weak branch is removed, pinching is carried out on the main vine after the main vine grows up to form a trunk, two accessory buds are cultivated on two upper knots and used as main branches after pinching, the other accessory buds are removed, and grape tendrils are removed too. The two main branches grow towards the two sides in the horizontal direction of a slope, then are guided upwards along the slope in the direction perpendicular to the horizontal line of the slope, are subjected to binding cultivation, and then are subjected to pinching. Secondary accessory buds growing at knot axils of the main branches are all reserved, leaf remaining and pinching are carried out on all the secondary accessory buds, and the secondary accessory buds are bound. Crystal grape branches and tendrils in a mountainous region do not overlap or overlap slightly after pruning, the steps of pruning, branch binding, pinching, bud removing, bagging, picking and the like are simple and fast, labor and time are saved, tree vigor is strong, the tree form is stable and standard, fruit clusters are large and orderly, products are high in commodity, and the yield is easy to control.

The invention belongs to the scientific and technical field of carbon materials, and provides a method for preparing metal or metal oxide/carbon composite materials by asphaltine. The method takes the by-product asphaltine in the coal liquefaction process as a carbon source, takes a pyrolytic polymer as a pore-forming agent, and takes easily-pyrolytic metal salt as a metal precursor; and then the metal or the metal oxide/carbon composite materials are prepared by one step after the physical blending and carbonizing reductive treatment. The metal or the metal oxide/carbon composite materials prepared by the method have the controllable appearance that the metal or the metal oxide is uniformly dispersed in a carbon carrier with the grain diameter of 3-50nm. The preparation process has simple routes, mild conditions, conventional equipment, low cost, and controllable output of products, and is suitable for mass production. The prepared metal or the prepared metal oxide/carbon composite materials can be used as a highly-active catalyst, an adsorbent, a magnetic separation material, an electrode material and the like.

The invention discloses a Laval nozzle utilized wind power generation method which is implemented by the aid of one or multiple Laval nozzles. One end of each Laval nozzle is used as an inlet end while the other end thereof is used as an outlet end. A wind power generation unit is arranged in an internal pipe of each Laval nozzle. By means of multiple combinations, on the basis of the Laval nozzles and the air as a running carrier, abnormal running is realized. By means of wind-air conversion, light-air conversion, water-air conversion and heat-air conversion, and through an air reservoir system, continuously stable running is realized, problems of inconsequent and unstable power supply in existing wind power generation are solved, a stable, continuous, speedy, efficient, cheap and controllable green power generation system is realized finally, low-price high-efficiency energy output is achieved, and the Laval nozzle utilized wind power generation method meets requirements in reality and has high social and economic values.

A wideband light source is disclosed. The wideband light source includes a first optical amplifier for generating and amplifying a C-band spontaneous emission light, a second optical amplifier for generating C-band and L-band spontaneous emission lights which is pumped by the C-band spontaneous emission light to amplify an L-band spontaneous emission light, and a reflector positioned between the first and second optical amplifiers to reflect the C-band spontaneous emission light provided from the first optical amplifier back to the first optical amplifier and the C-band and L-band spontaneous emission lights provided from the second optical amplifier back to the second optical amplifier.

The invention discloses robot welding equipment for a barbecue oven. The robot welding equipment for the barbecue oven comprises a robot, a PLC (Programmable Logic Controller), a video monitoring feedback system, a safety protecting device, welding equipment, a revolving working platform and a demonstrator, wherein the PLC is connected with the robot, the welding equipment, the revolving working platform, the safety protecting device, the video monitoring feedback system and the demonstrator, so as to realize receiving a feedback signal or sending out a control signal. The robot welding equipment for the barbecue oven has the advantages that the welding performance is reliable, the quality of a weld seam is excellent, welding parameters are conveniently adjusted, and the efficiency is high; the robot is used for sequentially carrying out welding according to a programmed program; the production efficiency is increased; the labor condition of a worker is improved; the welding is carried out by adopting the robot; the worker is only used for loading and unloading the barbecue oven, and keeps away from welding arc light, smog, splashing and the like; the worker is free from high-intensity physical labor; the robot is not tired, and can be used for continuous production for 24 hours in one day; the efficiency is increased more obviously; the product cycle is clear; and the product equality is easily controlled.

The present invention discloses a method for improving the rice yield through OsGRF6 gene, and applications thereof, and belongs to the technical field of crop genetic engineering. According to the present invention, after the GRF6 gene is subjected to overexpression in rice, the secondary rachis branch number and the number of grains per ear of the rice are increased, and after the GRF6 gene is subjected to knocking-out, deactivation or activity reducing in rice, the secondary rachis branch number per ear and the number of grains per ear are significantly reduced, such that it is indicated that the gene can control the rice yield; the GRF6 gene is introduced into the rice through the expression vector to make the GRF6 be subjected to overexpression so as to increase the rice yield; the GRF6 gene can further be used as the molecular marker used in the crop breeding; and the GRF6 gene provides the powerful means and tool for the new high yield rice variety by using the molecular marker-assisted breeding and the genetic engineering method, and has great application potential.

The invention discloses a switch power supply device compatible with various power supply modes for a base station, relates to power supply technologies of communication base stations, and aims to provide the switch power supply device compatible with various power supply modes of new energy, power frequency alternating current, high frequency alternating current and the like for the base station. According to the technical key points of the switch power supply device, the switch power supply device comprises a power frequency/high frequency switching device, a switch power supply monitoring unit, an alternating-current power distribution unit, a rectifying module, a direct-current distribution power supply, a storage battery and a high-frequency power generator, wherein the power frequency/high frequency switching device is provided with a power frequency alternating current input end, a high frequency alternating current input end and an alternating current output end; the high frequency alternating current input end is connected with the alternating current output end of the high-frequency power generator; the power frequency alternating current input end is connected to a commercial power supply; the power frequency/high frequency switching device, the alternating-current power distribution unit and the rectifying module are connected with a direct-current power distribution unit in sequence; the direct-current power distribution unit is connected with the storage battery, base station electric equipment and the like respectively.