39results about How to "Satisfied to enter" patented technology

The invention relates to a reservoir dam deformation monitoring method and system. The monitoring method includes the following steps that: 1) a reservoir dam deformation monitoring device is set; 2) the initial circular light spot images of each reference point are obtained; and 3) reservoir dam deformation monitoring is carried out. The reservoir dam deformation monitoring system includes a laser emitting device, reference point detecting devices and a main control system; the laser emitting device is arranged at one end of a dam and is used for emitting collimating laser light adopted as a reference line; a plurality of reference points with equal intervals are arranged one a ray with the laser emitting device adopted as an end point; one reference point detecting device is arranged at each reference point; the reference point detecting devices are used for detecting the subsidence and horizontal displacement of the dam; and the main control system is connected with the laser emitting device and the reference point detecting devices through a wireless communication mode and is used for transmitting detection commands, receiving detected data and performing analysis processing on the detected data. With the reservoir dam deformation monitoring method and system of the invention adopted, the automatic detection of the subsidence and horizontal displacement of the dam can be realized, the measurement accuracy of the reservoir dam is improved, and monitoring costs can be reduced.

The invention discloses a method for measuring the real-time dynamic state of rocket storage tank propellant amount. The method includes the following steps that a, a control valve controlling pressurizing gas in a pressurizing gas cylinder to enter a storage tank is closed, the pressure of a storage tank air cushion in the storage tank is measured through a storage tank pressure sensor, and a record is made; b, when air pressure is lowered to a certain degree, the pressure of the storage tank air cushion in the storage tank is measured through the storage tank pressure sensor, and a record is made; c, the volume of propellant flowing out of the storage tank in a time interval is measured through a flow meter; d, a mathematic model of a closed-opening system of the storage tank air cushion is established, and a relation formula between the size of the storage tank air cushion and the pressure of the storage tank air cushion, and a relation formula between the pressure changing amount of the storage tank air cushion and the size changing amount of the storage tank air cushion are obtained; e, after the measuring process is completed, the control valve controlling the pressurizing gas in the pressurizing gas cylinder to enter the storage tank is opened, and a user makes the pressurizing process recover. The method is high in measuring accuracy, does not need additional devices, is easy to operate and can meet the requirement that the pressurizing gas outside the spacecraft storage tank enters the storage tank.

The invention discloses a flameless combustion chamber for a Stirling engine and an implementation method of the flameless combustion chamber. The flameless combustion chamber comprises a combustion chamber housing, a combustor and a heat exchanger; the housing consists of an upper housing part and a lower housing part; an exhaust pipe is arranged at the top of the housing; a heat exchanger barrelis arranged at the bottom of the housing; the lower housing part is connected with the top of the heat exchanger barrel into a whole; the top of the heat exchanger barrel, the lower housing part andthe upper housing part form a combustion chamber space; a hot cavity of the Stirling engine is formed in the lower end of the heat exchanger barrel; the top of the heat exchanger barrel separates thecombustion chamber from the hot cavity; the combustor and the heat exchanger are arranged in the housing from the top to the bottom sequentially; the heat exchanger comprises a circle of heat exchangepipes arranged in a reverse-U-shaped manner; and one ends of the heat exchange pipes communicate with the hot cavity of the Stirling engine, and the other ends of the heat exchange pipes communicatewith a reheater, thus a circuiting working medium system is formed. The implementation method comprises the step that the combustion chamber is used for combustion. The flameless combustion chamber and the implementation method have the characteristics that the combustion chamber is uniform in temperature, the combustion efficiency is high and the safety and reliability are achieved. The flamelesscombustion chamber is particularly suitable for the Stirling engine for use.

The invention discloses a bed sheet fabric with a healthcare function. The bed sheet fabric is obtained by blending and weaving healthcare viscose fibers, cotton fibers and modal fibers and then treating a blended and woven product with essential oil finishing liquid; a preparation technology of the healthcare viscose fibers comprises the steps that sodium alginate and chitosan are added into a sodium hydroxide solution, tourmaline powder, bamboo charcoal powder and negative ion powder are added under the stirring condition, and after the mixture is stirred to be uniform, concentrating, spraying, drying and grinding are conducted to obtain healthcare particles; after the healthcare particles are blended with polyester chips and lignocellulose, heating and heat preservation are conducted, and a melt spinning stock solution is obtained; the molten spinning stock solution is added into a melt spinning machine to be prepared into filaments, the prepared filaments are cut into short filaments, and then the healthcare viscose fibers are obtained. The bed sheet fabric with the healthcare function has the excellent healthcare efficacy and even can eliminate diseases and preserve health, resist aging and maintain beauty and prolong life.

The invention relates to an Ag4Bi2O5-doped MnO2 oxygen electrode catalyst and a preparation method for an oxygen electrode. The oxygen electrode adopts a laminated structure of a waterproof layer, a catalyst layer and a conductive framework, wherein the catalyst layer consists of Ag4Bi2O5-doped MnO2, expanded graphite, treated activated carbon and Polytetrafluoroethylene (PTFE); the waterproof permeable layer consists of camphor, acetylene black, PTFE and polyvinylidene fluoride (PVDF); and the structure has a good oxygen reduction three-phase boundary. The key catalyst of the invention is a high-efficiency catalyst which takes the Ag4Bi2O5-doped MnO2 as an oxygen reduction process, can discharge at a high current density of 120 mAcm<2> and has a discharging life as high as 225 h, so as to show excellent catalytic activity.

A fireproof magnesium oxide board is made from, by weight, 80-100 parts of magnesium oxide, 20-30 parts of anhydrous magnesium chloride,10-20 parts of a modified expanded vermiculite foaming agent, 20-30 parts of aluminum silicate fiber, 5-10 parts of sawdust, 10-15 parts of fly ash, 8-12 parts of glass magnesium board crushing powder, 1.5-5 parts of a non-woven fabric and 6-8 parts of water. Themodified expanded vermiculite is prepared in the following steps that (1) vermiculite is expanded incompletely and calcinated; (2) incompletely expanded vermiculite is added into a solvent to obtain vermiculite suspension liquid, and the suspension liquid and a carbonization catalyst are added into a closed reactor, the temperature rises, and high-speed stirring and heat preservation are conducted; (3) a low-molecular-weight carbon source and a foaming agent are added into the vermiculite suspension liquid for ultrasonic dispersion; (4) the solution is subjected to centrifugal separation, anda precipitate is dried primarily to obtain the fireproof expanded vermiculite. The fireproof magnesium oxide board has good fireproof performance and smoke suppression performance.

The invention provides an energy saving device and method for a wave soldering machine. The energy saving device comprises a device body, the wave soldering machine, a soldering machine sealing cap, a soldering wave trough, a mechanical pump and a smoke exhaust device, wherein the wave soldering machine is arranged on the device body; the soldering wave trough is arranged in the wave soldering machine; the mechanical pump is connected with the soldering wave trough and used for forming wave crests in the soldering wave trough; the soldering machine sealing cap is arranged over the wave soldering machine; the smoke exhaust device is connected with the soldering machine sealing cap in a sealed mode. By means of the energy saving device and method for the wave soldering machine, the requirements for soldering are lowered, materials are saved, and the requirement for wave soldering are met. The soldering machine sealing cap can completely prevent outside air from entering the wave soldering machine, and then smoke in the wave soldering machine is exhausted and treated through the smoke exhaust device, so that the shortcoming that smoke is exhausted out of a wave crest opening to air is overcome, and the environment of a workshop is improved while soldering tin is saved. The energy saving device and method save energy, are environmentally friendly, and do not affect the physical health of workers.

The present invention discloses a sitagliptin pharmaceutical composition and a preparation process thereof, the sitagliptin pharmaceutical composition comprises an active agent of sitagliptin phosphate or a pharmaceutically acceptable salt thereof as an active ingredient, and by adding a pharmaceutically acceptable additive of the pharmaceutical composition, the sitagliptin pharmaceutical composition is characterized in that the granularity of 90% of the active agent is in the range of 60-300 [mu] m; the pharmaceutical composition is prepared by a direct tabletting method and coating. As for the granularity of the medicine, the stability can be effectively improved, sticking can be improved, and the problem of product degradation impurities can be controlled without grinding or preparing dry particles with other materials by a dry method or a wet method in advance. The invention also relates to a preparation method of the pharmaceutical composition, the preparation method has the characteristics of simple process, low cost, good product stability and the like, the production efficiency is improved to a certain extent, and the preparation method is suitable for commercial production.

The invention relates to an all-wheel drive extra-heavy desert transport vehicle, the drive form of the transport vehicle is 6 * 6, the transport vehicle comprises a frame, a front suspension, a rear suspension, a power system, an axle, tires, a cooling system, an air inlet system, an inflation and deflation system, an air conditioning system, a hydraulic capstan, a loading platform and a saddle, the axles are respectively mounted on the front suspension and the rear suspension, the tires are mounted on the axles, the power system is mounted on the frame, and a main radiator of the cooling system is mounted at the front end of the cab; the auxiliary radiator is installed at the rear end of the cab, the air inlet system, the inflation and deflation system, the air conditioning system, the hydraulic capstan, the loading platform and the saddle are installed on the frame, and the air inlet end of the air inlet system is higher than the top end of the cab. The problem that in the prior art, a conventional truck cannot achieve overweight desert transportation is effectively solved.

The invention discloses a bionic Chinese prickly ash harvesting and cutting tool which structurally comprises an upper occluder, a lower occluder, a handheld handle and an occlusion switch, wherein the upper occluder and the lower occluder are connected through a power spring; the handheld handle is fixed on the outer side wall of the lower occluder; the occlusion switch is a pull rod of which thetop is connected and fixed at the upper occluder; the upper occluder is U-shaped; a fixing groove is formed in the outer side wall of a U-shaped arc-shaped surface; a high-silicon rubber strip is fixedly mounted inside the fixing groove; a saw tooth blade is arranged on the inner side wall of the U-shaped arc-shaped surface; the lower occluder and the upper occluder are identically structured andare arranged in a vertical symmetric manner; and a collection box is connected with the bottom of the lower occluder. The bionic Chinese prickly ash harvesting and cutting tool is capable of effectively solving problems of the prior art, is simple and reasonable in structural designing, light and convenient and wide in application range, not only meets demands of Chinese prickly ash harvesting, but also can be applied to harvesting of honeysuckle flowers and the like, is expanded technical innovation of the prior art, and has very good popularization and application value.

The invention relates to a large-axial-movement double-end-face mechanical sealing device for a rake type dryer. The device comprises a shaft sleeve, a medium end static ring seat and an atmosphere side static ring seat are arranged on the shaft sleeve, a sealing seat is installed between the medium end static ring seat and the atmosphere side static ring seat, a corrugated pipe is installed at the left end of the shaft sleeve, a medium end flange is installed at the left end of the corrugated pipe, the medium end flange is connected with the medium end static ring seat through a screw, a single-end-face sealing assembly is arranged on the inner side of the medium end flange, a medium end sealing assembly and an atmosphere end sealing assembly are arranged on the shaft sleeve on the right side of the medium end static ring seat, and the medium end sealing assembly and the atmosphere end sealing assembly are both located on the inner side of the sealing seat. According to the large-axial-movement double-end-face mechanical sealing device for the rake type dryer, the axial movement amount can be increased through the corrugated pipe, then the movement requirement of the rake type type can be met, and dust in a medium can be prevented from entering the sealing face of a double-end-face mechanical sealing device through the single-end-face sealing assembly arranged at the medium end.

The invention discloses a safety protection system of a logging-while-drilling apparatus. The safety protection system comprises an upper chuck, a lower chuck, an upper stopping disk, a lower stopping disk, telescopic arms, a power supply, a switch, balls and anti-collision cushions. The safety protection system is characterized in that the upper chuck is fixed at an upper opening of the upper stopping disk; the lower chuck is fixed at a lower opening of the lower stopping disk; longitudinal notches are formed in the same positions of one side of the upper chuck, the lower chuck, the upper stopping disk and the lower stopping disk; the anti-collision cushions for protecting parameter short sections are stuck on inner walls of the two notches; a mounting groove is formed in an upper surface of the upper stopping disk; a power supply is fixed inside the mounting groove. According to the safety protection system of the logging-while-drilling apparatus, the upper and lower stopping disks can be moved without the need of manpower and the automation degree is high; heat dissipation requirements can be met and seawater cannot enter a cabinet body, so that a machine body is effectively protected; the anti-collision cushions are mounted on the notches and the parameter short sections are effectively protected from damages; when connecting plugs cannot be in butt joint, the parameter short sections can be rotatably adjusted, so that angles of the connecting plugs are changed and the safety protection system is convenient to mount.

The invention belongs to the technical field of waste utilization and treatment, and particularly discloses a preparation method of a multi-type zeolite/C-S-H composite adsorption material, which comprises the following steps: slurrying a calcium-silicon-aluminum raw material and alkali with water, and carrying out hydrothermal treatment, wherein the mass ratio of CaO to SiO2 is 0.45-0.75, and the mass ratio of SiO2 to Al2O3 is 1.2-2.0; and after the reaction, separating to obtain a composite adsorption material containing crystalline polymorphic zeolite and amorphous hydrated calcium silicate, wherein in the pulpified slurry, the liquid-solid ratio is 5-18 mL/g, the temperature of the hydrothermal reaction is 160-190 DEG C, and the time of the hydrothermal reaction is 1-5 hours. Through cooperative control of the conditions, the multi-type zeolite/C-S-H composite adsorption material can be obtained, and the material obtained under the cooperative process has better metal adsorption performance.

The invention provides a wafer-level system packaging structure and method, and the method comprises the steps: providing a first device wafer which is internally provided with a plurality of device modules, and is provided with a front surface and a back surface, a plurality of first welding pads which are electrically connected with the device module and are sunken in the front surface are exposed out of the front surface; providing a plurality of first chips, wherein the lower surfaces of the first chips are provided with second welding pads; forming a bonding layer on the front surface of the first device wafer or the lower surface of the first chip, and forming an opening in the bonding layer; bonding the first device wafer and the first chip through the bonding layer, and enabling a cavity formed by the opening to serve as a working cavity of the first device module and/or the first chip; the first welding pad and the second welding pad are oppositely enclosed to form a gap; and forming a conductive bump in the gap by adopting an electroplating process so as to electrically connect the first welding pad and the second welding pad.

The invention provides a wafer-level system packaging structure and method, and the method comprises the steps: providing a first device wafer which is internally provided with a plurality of first device modules, and is provided with a front surface and a back surface, a plurality of first welding pads which are electrically connected with the first device module and are sunken in the front surface are exposed out of the front surface; a second device wafer is provided, a plurality of second device modules are formed in the second device wafer, the second device wafer comprises an upper surface and a lower surface which are opposite to each other, and a plurality of second welding pads which are electrically connected with the second device modules and are recessed in the upper surface are exposed out of the upper surface; bonding the first device wafer and the second device wafer to enable the first welding pad and the second welding pad to oppositely enclose a gap; and forming a conductive bump in the gap by adopting an electroplating process so as to electrically connect the first welding pad and the second welding pad.