36results about How to "Reduce intermediate loss" patented technology

The invention discloses an ODMR functional part integrated diamond NV magnetometer and a manufacturing technology thereof, and belongs to the fields of solid state atom magnetometers and micro nano processing. A block-shaped diamond prepared with an NV color center ensemble is edged and shaped into a step-shaped diamond, a multi-layer medium combined reflective film is prepared in the upper surface of the diamond in a film growth technology, a multi-layer medium combined cutoff filtering film is prepared in the bottom, the two types of optical functional films wrap a diamond medium to form a light tripping structure, an annular microwave antenna is prepared on the light tripping structure with the diamond as the main body, a light through hole is cut, a laser diode and a photodiode are microfabricated, and the integrated NV magnetometer is realized. The total light tripping cavity structure and system modulation photon collecting functional parts are designed by taking the diamond as the core, the sensitivity of the solid atom magnetometer can be maximized, and the size of the device is reduced.

The invention discloses a two-stage automatic gear shift transmission device. A driving wheel I (3) of a first gear transmission device is engaged with a driven wheel I (7) of the first gear transmission device, and a driving wheel II (10) of a second gear transmission device is engaged with a driven wheel II (12) of the second gear transmission device. The driving wheel I (3) and the driving wheel II (10) are connected with a driving shaft (4) in a sliding way. The driving wheel I (3) and the driving wheel II (10) rotate in circumferential direction along the driving shaft (4). The driven wheel I (7) and the driven wheel II (12) are fixed on a driven shaft (6) and rotate synchronously with the driven shaft (6). The driven shaft (6) is connected with a differential (13) in a gearing way. A gear shift synchronizer is arranged between the driving wheel I (3) and the driving wheel II (10). A gear shift control device is connected to the gear shift synchronizer. The invention can optimally match with electric power output characteristics, reduce the intermediate loss and improve the driving comfort.

The invention discloses a supercritical carbon dioxide circulation and sea water desalination coupled vessel nuclear power system which comprises a reactor cabin, a ship cabin and a propelling device,the reactor cabin comprises a high-temperature gas cooled reactor system, and the ship cabin comprises a supercritical carbon dioxide power circulation system and a sea water desalination subsystem.A first-stage intermediate heat exchanger and a second-stage intermediate heat exchanger are arranged on the two sides of a high-temperature gas cooled reactor in the high-temperature gas cooled reactor system correspondingly. The supercritical carbon dioxide power circulation system is coupled with the high-temperature gas cooled reactor system through a first-stage intermediate heat exchanger and a second-stage intermediate heat exchanger. The seawater desalination subsystem is coupled with the supercritical carbon dioxide power circulation system through a precooler and an intercooler. Thepropelling device is connected with the supercritical carbon dioxide power circulation system. Vessel propulsion power and electric power are provided through the supercritical carbon dioxide circulation system, fresh water needed by the whole vessel is provided in cooperation with the sea water desalination system, the vessel is driven to sail in a direct propulsion mode, and the energy conversion rate and the device compactness are improved.

The invention relates to a pulsed-jet longitudinal impactor. The lower end of a pump upper cover and the upper end of a pump outer cover are connected through a thread, the lower end of the pump upper cover is connected with a central rotor, the upper end of a pump middle shaft is provided with a thread, and the pump middle shaft is fixed at the lower end of the central rotor and sits on a lower cover plate through a boss; the lower cover plate is fixed inside the lower end of the pump outer cover and fixes the central rotor and the pump middle shaft inside the pump outer cover at the same time, the pump outer cover is fixed inside a main pup joint by a fixing cover nut, a valve is fixed at the lower end of the pump middle shaft, and an upper valve plate is fixed inside the valve through a fixing bolt; a lower valve plate is fixed at the upper end of an impact valve which is provided with a thread, the impact valve is in threaded connection with an impact joint which is fixed inside a hexagonal sleeve, the upper portion of the main pup joint is connected with an upper drill column while the lower portion of the same is connected with the hexagonal sleeve, and the impact valve is fixed above the hexagonal sleeve and provided with a passageway inside. The pulsed-jet longitudinal impactor is few in middle structure, low in energy consumption, large in impact force and long in service life.

The invention relates to a preparation method of tetrahydropytanyl-4-formic acid and derivatives thereof by a one-pot process, which comprises the following steps: by using diethyl malonate which is industrialized in the market or easily prepared as an initial raw material, cyclizing with substituted dihalogenated ether (X is -Cl, -Br or -I), hydrolyzing, and decarboxylating to obtain the tetrahydropytanyl-4-formic acid and derivatives thereof. The method has the advantages of cheap and accessible raw materials, stable technological conditions and higher reaction purity and yield (the yield is 75.6-82.2%), is simple to operate in the whole production process, shortens the production time, enhances the yield, is suitable for large-scale production, and provides a new thinking and method for preparing the tetrahydropytanyl-4-formic acid and derivatives thereof.

The invention provides an electronic mall management system integrating agricultural service resources, which comprises an online server and an offline server, and is characterized in that the onlineserver comprises a user management unit, a commodity management unit, a data analysis unit, an artificial intelligence management unit and an order management unit, and the offline server comprises aheadquarters service platform and a basic service station. The system provided by the invention can improve the usability of the user and the probability of finding the commodity in a short time, andsaves the commodity selection and purchase time.

The invention discloses a resonant cavity inside-pumped disk laser, which comprises an active gain mirror, a pump laser with the active gain mirror inserted in a resonant cavity, and a disk laser resonant cavity. According to the invention, a resonant cavity is based on a conventional pump cavity and is further inserted with a gain material made into a sheet to form a reflective mirror of the resonant cavity, or is a resonant cavity formed by amplifying the stimulated radiation light of the sheet crystal itself. According to the invention, the high-power roundtrip laser in a laser resonant cavity is used to achieve the multi-pumping purpose for the disk laser, the disk laser crystal pumped power density in the resonant cavity is more than ten times higher than that outside the cavity, andthe absorption efficiency of the pump light by the disk crystal can be improved, especially for non-absorption peak pumping conditions. In the invention, the pump resonant cavity and the disk laser resonant cavity are independent of each other, the cascade pumping of the disk laser can be realized, and the Q modulation of the pump cavity can also realized to obtain the multi-wavelength, the narrowpulse width and the high peak power pulsed laser output.

The invention discloses a synthetic technology for ofloxacin. The synthetic technology comprises the following steps: weighting (S)-(-)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7 hydrogen pyridine (1,2,3-de) (1,4) benzo oxazine-6 carboxylic acid, N-methyl piperazine and dimethyl sulfoxide at a ratio; adding into a reactor in turn; heating, stirring and reacting for 4-8h under the environment at 110-150 DEG C, thereby forming a mixed solution; filtering, adding an alkyl imidazole L-tartrate ionic solution, and heating, stirring and reacting for 30-45min under the environment at 60-80 DEG C; adding an organic solvent, mixing and stirring; reducing pressure and recycling dimethyl sulfoxide and excessive N-methyl piperazine; utilizing 90-95% ethyl alcohol to crystallize the residual solution; and performing hydrolysis reaction, thereby obtaining the ofloxacin. The invention can effectively reduce the happening of side reaction and can increase the yield of condensation reaction.

The invention discloses a grain drying bin with hidden air ducts. The grain drying bin comprises a bin body, a hot-blast stove, and an induced draft fan, wherein the bin body comprises two inlet and outlet air ducts, and is used for accommodating to-be-dried grain; the hot-blast stove is connected to one side of the bin body through one inlet and outlet air duct, and is used for introducing a hot blast into the drying bin; the induced draft fan is connected to the other side of the bin body through the other inlet and outlet air duct, and is used for pumping out the hot blast in the bin body; the bin body is of an interlayer structure, a horizontal main air duct and vertical hidden air ducts, the horizontal main air duct is connected with the two inlet and outlet air ducts, and the plurality of vertical hidden air ducts are evenly distributed in an interlayer of two side surfaces of the bin body; the upper ends of the vertical hidden air ducts are sealed, and the lower ends of the vertical hidden air ducts are communicated with the horizontal main air duct; vent holes are evenly distributed in the side, close to the grain, of each vertical hidden air duct, and are used for introducing a hot blast into the grain. The grain drying bin with the hidden air ducts realizes the combination of drying and storage, reduces the cost for transportation, and has the advantage of reducing middle loss.

The invention discloses a fuel cell power supply and refrigeration integrated cabinet and data center, and aims to solve problems of complex structure and serious energy loss of the data center due to the fact that energy supply and energy use are separately arranged in the existing data center. A fuel cell is directly combined with a terminal energy consumption equipment cabinet, so direct power supply is realized, distributed refrigeration of the cabinet can be realized, refrigeration efficiency is greatly improved, electric cooling energy supply efficiency is remarkably improved, and the PUE is obviously reduced. Through the integrated design, the power supply module, the refrigeration module and the power utilization module are combined together, direct-current power supply and direct cooling for the cabinet server are achieved, popularization of green electricity in a data center is achieved, intermediate loss of power supply and refrigeration is greatly reduced, and efficiency is improved.

The invention provides a hot forging composite machining device and method. The device comprises a drive mechanism, a transmission mechanism, a heating mechanism, a blanking mechanism, a hot forging forming mechanism, a discharging mechanism and an induction mechanism. The transmission mechanism is connected with the drive mechanism, the heating mechanism is arranged between the feeding mechanism and the transmission mechanism, the hot forging forming mechanism is arranged below the blanking mechanism and connected with the discharging mechanism, and transmission variables of the transmission mechanism are transmitted to the blanking mechanism through the induction mechanism. The hot forging composite machining method comprises the steps that a) the drive mechanism drives the transmission mechanism to transfer hot forging materials to the heating mechanism, and the transmission variables are transmitted to the blanking mechanism through the induction mechanism; b) the hot forging materials are heated; c) the heated hot forging materials are transferred to the blanking mechanism for blanking; d) forging forming is performed, and e) discharging is performed. According to the hot forging composite machining device and method, unmanned operation and smooth transition of work sections during hot forging are guaranteed, the stable performance of the work sections is guaranteed, automation is achieved, the machining efficiency is high, and molded parts are stable in quality.

The invention relates to a method for synthesizing citric acid diphenhydramine by a 'one boiler method'. The method comprises the following steps of: reacting diphenyl methanol-beta-chloroethylether with dimethylamine to generate diphenhydramine hydrochloride; adding sodium hydroxide to treat, so that the diphenhydramine is freed; and directly adding citric acid into the same reactor to perform acid-base reaction to prepare the citric acid diphenhydramine. By the method, an intermediate is not required to be separated and purified, so the operating steps can be simplified, yield of the products can be increased, production cycle can be shortened, and production cost can be reduced; the starting raw material diphenyl methanol-beta-chloroethylether can be obtained from a commercial channel or can be prepared by reacting diphenyl methanol with 2-chlorohydrin in the presence of concentrated sulfuric acid without using a toxic organic solvent, so the subsequent purification step is simplified and safety of personnel operation and products is improved; and a method for synthesizing the diphenyl methanol-beta-chloroethylether is combined with the method for synthesizing the citric acid diphenhydramine, remarkable effects of simplifying the operating steps, increasing the yield of the products and reducing the production cost are achieved.

The invention relates to the technical field of extraction of plant effective components, in particular to a method for extracting hesperidin from citrus to prepare hesperetin, which comprises the following specific steps: S1, drying citrus, crushing, filtering with a screen, weighing 100 kg of powder, adding a solvent for extraction, adjusting the pH value to be alkaline, putting the powder into a self-made ultrasonic countercurrent extraction device for extraction for 120 minutes, filtering, collecting an extracting solution, extracting twice, combining the extracting solution, concentrating the combined extracting solution until the volume is 1/(2-4) of the volume of the original extracting solution, filtering, adjusting the pH value to 3-4, standing and precipitating for 8 hours, filtering and collecting a precipitate, washing the precipitate with pure water until the precipitate is neutral, drying into powder, and weighing to obtain the citrus crude extract. According to the invention, the hesperetin is produced by designing and utilizing the waste citrus. Compared with the traditional process for preparing hesperetin by taking hesperidin as a raw material, the method has the advantages that the intermediate loss is reduced, the purification and drying links of the hesperidin are reduced, and the production period is greatly shortened.

The invention discloses fishing ground protecting equipment which comprises a frustum outer frame, wherein a balancing mechanism is arranged at the bottom of the outer surface of the frustum outer frame, a sealing partition plate is fixedly connected to the position above the balancing mechanism on the inner surface of an inner cavity of the frustum outer frame, a floating strengthening mechanismis fixedly connected to a middle position of the top of the sealing partition plate, a vibration power generation mechanism is fixedly connected to a middle position between two sides of the inner cavity of the floating strengthening mechanism, a reflective partition plate is fixedly connected to the position above the floating strengthening mechanism on the inner surface of the inner cavity of the frustum outer frame, a sound wave emitter is fixedly connected to a middle position of the top of the reflective partition plate, the reflective partition plate is fixedly connected to transfer mechanisms on the front surface and the back surface of the sound wave emitter, and a protecting top cover is fixedly connected to the top of the inner surface of the frustum outer frame. The equipment relates to the technical field of cultivation. The equipment is energized by means of wave fluctuation of a water surface, threatening fishes are dispelled around by sound waves, and the safety of the equipment and the cultured fishes is protected.

The present invention relates to a chemical oxygen-iodine laser chemical raw material regeneration method, wherein an electrolysis technology and a fuel cell technology are combined to make the aqueous solution of the chemical oxygen-iodine laser product potassium chloride or sodium chloride and oxygen be subjected to two-step conversion so as to obtain the chemical raw materials such as the chlorine gas and the alkali hydrogen peroxide solution, such that the chemical oxygen-iodine laser chemical raw material regeneration is achieved, wherein the obtained chemical raw materials are required by the chemical oxygen-iodine laser. The regeneration method of the present invention is applicable for on-site regeneration and recycling of the chemical oxygen-iodine laser chemical raw material.

The invention belongs to the technical field of engines, and particularly relates to an internal combustion engine and a transmission system.The internal combustion engine comprises a stator, a rotor, an ignition system and a fuel supply system.The rotor is rotatably arranged in the stator, a driving structure is arranged between the rotor and the stator, and the ignition end of the ignition system is fixed to the stator and extends to the driving structure; the driving structure does work and drives the rotor to rotate in the stator, and the fuel supply system penetrates through the stator to supply fuel to the driving structure. The transmission system comprises the internal combustion engine. According to the internal combustion engine and the transmission system, a combination of a piston and a crank connecting rod mechanism is replaced by the rotor, the whole engine structure is effectively simplified, the number of high-speed moving parts is reduced, the failure rate in the using process is reduced, the structure is simple, maintenance is simpler even if faults occur, and disassembly and assembly are convenient.

The invention provides a chemical preparation method of a compound 2-methyl-5,7-dihydroxy chromone. The chemical preparation method comprises the following steps: by mainly adopting phloroglucinol and acetyl chloride as raw materials, firstly synthesizing 2,4,6-trihydroxy acetophenone by using Lewis acid as a catalyst in an organic solvent system; then replenishing acetyl chloride and a condensation catalyst namely anhydrous sodium acetate, further performing condensation with generated 2,4,6-trihydroxy acetophenone, and performing 'one-pot reaction' to obtain 2-methyl-3-acetyl-5,7-diacetoxyl chromone; and finally, removing acetyl and acetoxyl of 2-methyl-3-acetyl-5,7-diacetoxyl chromone by virtue of soda boiling to obtain a target product namely 2-methyl-5,7-dihydroxy chromone. The method provided by the invention is simple and easily-available in adopted raw material, can simplify the reaction steps, and has the advantages of low cost, high yield, mild reaction condition, applicability in industrial production, environmental protection and the like.

The invention belongs to the technical field of tea leaves, relates to a honeysuckle black tea making process, and the honeysuckle black tea making process is simple to operate and low in cost, the made honeysuckle black tea product is uniform in quality, the quality is greatly improved, and the economic benefit is greatly improved.