500 results about "Late period" patented technology

The amount of work processing (main processing amount) of a database is acquired and accumulated. A value (main processing index) indicating the transition of the amount of main processing amount available in a time frame that is presumed to be required for backup is calculated by using the amounts of main processing accumulated during the latest period of time. The main processing index is compared with the backup executability reference value which is a threshold value determining the backup executability. If the main processing index is smaller than the threshold value, backup is executed. If the main processing index is larger than the threshold value, backup is not executed but the amount of main processing is again acquired to calculate the main processing index, and the main processing index is compared with the backup executability reference value.

The present invention relates to a thermochemistry assistant strengthening steam drive method for thermal recovery of horizontal well using oil-soluble compound viscosity reducer and carbon dioxide. The technique scheme is that: Drilling an horizontal well below the heavy oil reservoir layer, injecting periodically oil-soluble compound viscosity reducer, carbon dioxide liquid and steam in slug injection forms to horizontal well, after shutting in well and opening to blow, continuous oil extraction is operated by the inner lower pump in horizontal well. The present invention can reduce base oil viscosity of super heavy oil reservoir in lower or middle deep layers greatly, reduce steam injection pressure greatly, enhance steam hot wave and range, and enhance period exploitation effect. The scene experiment proves that the average period oil-steam ratio reaches to 0.75, average period oil production is 1800t, the room experiment proves that developing thermochemistry assistant strengthening steam drive in the late period of middle deep layer of super heavy oil reservoir, the final oil reservoir recovery can reach about 40%.

The invention relates to a construction method for a gas storage reservoir in a rock salt cavity, belongs to the salt mine mining and the rock salt cavity utilization fields, and mainly used for the dissolution construction of an underground gas storage reservoir in a eutectic salt deposit. The construction method is characterized in that a method for down-flow type gas storage reservoir construction comprises the following steps: fresh water is infused into a salt deposit by a water injection pump and through a water injection pipe, the rock salt is dissolved from up to down, and at the same time, the natural gas is infused; the expenses for oil consumption of the original oil cushion method and the cost for brine purification treatment can be saved by using the method; and the method is more economical and more environment-friendly. The gas storage reservoir can be used from the beginning of construction; the single well oil cushion method with three to five years of construction cycle is not required for constructing the gas storage reservoir; the construction of the gas storage reservoir needs no cycle basically; the reservoir storage capacity is small in the beginning period; the gas storage reservoir can be used as a large gas storage reservoir in the middle and the late periods; the problems of long period for the construction of the gas storage reservoir by using the oil cushion method, difficult detection of the oil water interface, as well as other relative technical problems are thoroughly solved; and the construction method is an ideal method for rapid dissolution construction of the gas storage reservoir in the rock salt deposit.

The invention relates to an apparatus and a method for nitrogen removal by combining garbage leachate SBR and anaerobic ammoxidation, which belongs to the low carbon nitrogen (CN) ratio high density ammonia nitrogen garbage leachate biological denitrogenation technical field. The apparatus comprises an integrated water tank, a SBR short distance nitrated reactor and an anaerobic ammoxidation reactor; a preposition water tank and a postposition water tank in the integrated water tank are communicated with a peristaltic pump and the SBR short distance nitrated reactor, the postposition water tank is connected with the bottom of the anaerobic ammoxidation reactor through the outlet pipe and the peristaltic pump, an self-circulation pipeline is provided on the anaerobic ammoxidation reactor, and is connected with the SBR preposition water tank through the outlet pipe and the peristaltic pump. The method comprise the following steps starting the SBR short distance nitrated reactor, starting the anaerobic ammoxidation reactor, and an operation is in series of the SBR short distance nitrated reactor and the anaerobic ammoxidation reactor is carried out. The apparatus of the present invention is suitable for organic matter removal and short distance nitrogen removal of the garbage leachate at late period in the garbage landfill, the process is advanced, and the advantages of energy saving and consumption reduction is obvious.

This invention discloses a sustained-release chelated topdressing fertilizer containing secondary and trace elements. The sustained-release chelated topdressing fertilizer is composed of: urea 10-50 parts, ammonium sulfate 0-30 parts, ammonium chloride 0-35 parts, potassium chloride 0-30 parts, potassium sulfate 0-40 parts, calcium amino acid chelate 0-1 part, magnesium amino acid chelate 0-1 part, ferric amino acid chelate 0-1 part, zinc amino acid chelate 0-1 part, copper amino acid chelate 0-0.2 part, molybdenum amino acid chelate 0-0.1 part, manganese amino acid chelate 0-0.1 part, attapulgite 2-8 parts, borax 0-1 part, and dicyandiamide 0.02-0.1 part. The sustained-release nitrogen fertilizer has long effective period and high utilization rate of nitrogen, and can supplement necessary secondary and trace elements to crops. Crops applied with the sustained-release nitrogen fertilizer have such advantages as high yield, high quality, and no deficiency or loss of nitrogen in late period.

The invention provides a distribution network line inspection system based on a tablet computer. Each device of a distribution network line is provided with an identification code which is used for storing license plate information of the corresponding device and only identifying the corresponding device, the identification codes are read through a hand-held terminal which is connected with a background distribution network line inspection server through a wireless network, the hand-held terminal takes identified information as a key field for querying a distribution network line database on the distribution network line inspection server to acquire detailed information about the line at a server side, and the hand-held terminal transmits on-site pictures and written records back to the distribution network line inspection server through the wireless network. The distribution network line inspection system has the advantages that for performing inspection operation, the hand-held terminals (the tablet computer, a smartphone and the like) are used for scanning the bar codes to query the database and acquire the relevant information, so that the real-time quick query of the records and the modification and the maintenance of data are realized, and the efficiency of the inspection operation as well as the data entry and maintenance in the late period are improved.

The invention relates to an anti-blushing transparent woodwork coating and a production process thereof. The anti-blushing transparent woodwork coating consists of main paint, a curing agent and a thinner, wherein 2.0-4.0 weight percent of zinc stearate powder is used. Due to the use of the zinc stearate, the method not only can maintain the transparency of the paint membrane, but also can significantly improve the rubbing property of the dry membrane. However, if the zinc stearate is not used properly, serious blushing can occur in the late period. The invention solves the problem that blushing can easily occur to the double-component polyurethane transparent woodwork primer coated thickly at the low temperature and synchronously realizes the purposes of good closure, easy rubbing and long-term clear and transparent effect of the paint membrane through controlling the ratio of the zinc stearate and hydroxyl alkyd resin, the dispersion of the zinc stearate powder and the production indexes. Therefore, the invention can be widely applied in the surface protection and decoration of indoor and outdoor bamboo, wood and rattan products.

The invention discloses an electric-hydraulic dual-control energy storage type fracturing well completion switch. The electric-hydraulic dual-control energy storage type fracturing well completion switch comprises an upper joint, a center pipe, a pressure transmission outer tube, a slide sleeve outer tube, an outer sheath and a lower joint which are sequentially connected from top to bottom, wherein an energy storage device is arranged on the center pipe; a slide sleeve system is arranged inside the slide sleeve outer tube; a hydraulic transmission system is arranged inside the slide sleeve outer tube and the outer sheath; each of the center pipe, the pressure transmission outer tube and the slide sleeve outer tube is provided with communicated pressure transmission holes; and the energy storage device, the slide sleeve system and the hydraulic transmission system are communicated through the pressure transmission holes. A control driving system is also arranged between the lower half part of the slide sleeve outer tube and the outer sheath. The electric-hydraulic dual-control energy storage type fracturing well completion switch solves the problems that during the conventional ball injection slide sleeve staged fracturing, due to the existence of a ball seat, the layering stage number is limited; the oil well yield is influenced; and the late-period control production and the selective production cannot be realized, and the like.

The invention relates to a novel steel wire rod and a manufacturing technique thereof. A prestressed steel bar used as the distributed steel of tubular piles is a new product developed in recent years, and the raw material thereof, namely, the steel wire rod, has no special steel and production technique; the controls for the components and performances, etc. of the steel wire rod are different, which results in larger fluctuation thus bringing the producers and the users more difficulties; therefore, the novel steel wire rod and the manufacturing technique thereof are invented. The components of the novel steel by weight percentage are: 0.28-0.34 percent of C, 0.70-1.10 percent of Si, 1.10-1.50 percent of Mn, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P, less than or equal to 0.25 percent of Ni, less than or equal to 0.25 percent of Cr and less than or equal to 0.20 percent of Cu; the adopted technique is converter - ladle furnace (LF) refining - continuous casting - highline mill; in the converter process, high lance height is adjusted, returned slag by the converter is added in the front period, and the alkalinity is controlled in the middle and late period; stirring is done under soft blowing before the end of the process, and then deoxidation by adopting SiAlBa is carried out; in the ladle furnace (LF) refining process, reductive white slag is adopted, the CaSi wires are fed and before finishing the refining, and soft argon blowing is done; in the continuous casting process, the degree of superheat and the casting speed of the molten steel are controlled and casting is preformed under whole course protection; in the rolling process, the delayed cooling technique is adopted. The novel steel wire rod, when in use, the control range of the components is narrow, therefore, the fluctuation of adjacent batches is small; the performance of the novel steel wire rod is stable, and the aberration thereof is small.

The invention provides an effective breeding method for a tenebrio molitor L. A tenebrio molito L is bred by adopting fine fodder with different proportions according to the front period, the middle period, and the late period, simultaneously, straw power and green fodder are adopted as batches, which are reasonably matched in each stage, and nutrition is balanced, the growing speed of a tenebrio molito L is fast, the worm body is large, and the method saves time, labor, and fodder, and the breeding periodic time lasts about 3-4 months, and the method has the advantages of short periodic time, high output and high efficiency, and is suitable to be popularized and bred in a large area.

The invention discloses a multiple hybrid polyculture method of omnivorous and carnivorous fishes in an intensive prawn culture pond. The method includes pretreating pond water in a pond with a surrounding net at the center, putting prawn seeds in the pond for culture, putting omnivorous fish seeds in the surrounding net for culture, putting carnivorous fish seeds outside the surrounding net for culture, using an aerator to aerate the pond during culture, throwing feed in the area outside the surrounding net at times, and adding microbiological preparation to control water quality in mid-to-late period of culture. By the method, utilization rate of prawn feed can be increased evidently, excess accumulation of organic pollutants in the intensive prawn culture pond is relieved effectively, the problem of low utilization rate of center space of the intensive prawn culture pond can be solved, infectious prawn diseases can be controlled to a certain degree, various advantages of fish and shrimp polyculture are given to play, and success rate of prawn culture is increased greatly.

The invention relates to an engine combustion optimization and exhaust purification device and method based on reformed gases, in particular to the fields of recycling and utilization of waste heat in engine exhaust, hydrogen production technology based on fuel reforming, mixed combustion of reformed gases of an engine, exhaust treatment and the like. The device is divided into four parts: a, an exhaust treatment module; b, a reformed fuel supply module; c, a reformed gas storage and supply module; and d, an electronic control module; and the reformed gases including H2 and CO can be preparedvia reforming reaction of reforming fuels in the presence of a catalyst and at a certain temperature. The reformed gases and gasoline can be filled into an engine cylinder for mixed combustion. The composition of fuels of an internal combustion engine can be improved in an early period, the combustion in the cylinder can be optimized, the engine exhaust can be treated in a late period, and the purpose of exhaust purification can be achieved.

The invention discloses a method for automatically regulating screen backlight duration of a mobile terminal. The method comprises the following steps: according to the computing ability of the mobile terminal, the application program running in the current foreground and the difference of tasks being fulfilled by the user, a mobile terminal records the time that the user operates the terminal within the latest period and computes the time of closing the screen backlight or reducing the backlight brightness the next time, thereby achieving the purpose of automatically regulating the screen backlight duration in different situations. Compared with the traditional method of setting only one fixed backlight timeout, the method is more power-efficient and can meet the requirements of the user under different circumstances.

The invention relates to a cordierite type microwave medium ceramic material and a preparation method thereof. The chemical formula of the microwave ceramic is Mg<2>Al<4>(Si<5-x>Ti<x>)O<18>, 0.05=<x=<0.40. The preparation method comprises the following steps: precisely weighing powder of oxides of each element in the chemical formula according to the chemical formula, mixing, evenly grinding, pre-burning, granulating, pressing granules into sheets, moulding, sintering to prepare ceramic, mechanically processing the ceramic to prepare a dielectric resonator in the late period, and carrying out a microwave test on the dielectric resonator. The disclosed microwave ceramic has a low dielectric constant, a high quality factor, and a temperature coefficient of resonance frequency, which is close to zero, and thus is suitable for being used as a substrate material of a microwave circuit.

The invention belongs to the technical field of crop growing management and discloses a regulation and control method for rice nitrogen topdressing based on a nitrogen spectral index method. According to the invention, the nitrogen spectral index method is constructed according to nitrogen amount required by target rice yield, apparent utilization rate of spike fertilizer, plant real-time nitrogen accumulation amount estimated based on reflectance spectrum and soil nitrogen supplying amount while nitrogen fertilization based on a nutrient balancing principle. According to the invention, in the aspect of real-time information acquisition, plant canopy group information is utilized, thus the regulation and control method disclosed by the invention has the quicker and lossless characteristics and the like, thereby avoiding the phenomenon of point replacing surface; in the aspect of a nitrogen topdressing regulating and controlling model, the soil nitrogen supplying amount and nitrogen fertilizer utilization rate during the middle-late period are quantified, thereby enhancing the mechanism characteristic and accuracy of nitrogen topdressing amount estimation and improving the quantification level.

The invention provides a transmission method and a system for video data. The system comprises a multicast gateway which is connected between a video source and a client end, and the method comprises the following steps: the multicast gateway receives a video source request message from the client end, a video source protocol is adopted to connect with the video source, receives the video data and converts the video data into a protocol data packet of the client end, the data packet is added with serial number, then the data packet is sent to the client end through a multicast address which is corresponding to the video source, and the data packets sent in the late period are stored in a buffer area; and then the client end judges whether packet loss exists after receiving the data packet, if packet loss exists, the client end sends a packet loss feedback message. The multicast gateway searches the data packet corresponding to the serial number in the buffer area, if the search succeeds, then resends the data packet to the client end again. The transmission method of the invention stores the data packets sent lately in the buffer area, and the lost data packet is searched in the buffer area and is sent again when packet loss existing, thus ensuring the reliability of data transmission.

The invention discloses a method for adjusting the working voltage of a multi-carrier power amplifier, which comprises the following steps: counting the telephone traffic within the extent of jurisdiction of the multi-carrier power amplifier in a latest period of time according to a preset time interval; determining the working voltage required by the multi-carrier power amplifier for bearing the telephone traffic according to a preset configuration file, wherein the configuration file comprises a corresponding relation between a telephone traffic value and a working voltage threshold value; and adjusting the currently used working voltage of the multi-carrier power amplifier according the determined working voltage, thus, the working voltage of the multi-carrier power amplifier can be dynamically adjusted according to the change of the telephone traffic so as to ensure that an obvious difference value cannot appear between the currently used working voltage of the multi-carrier power amplifier and output signal peak value voltage so as to greatly reduce the power loss, improve the power efficiency of the multi-carrier power amplifier, further save the electric energy to a large degree and avoid the resource waste. The invention simultaneously discloses an adjustment device, a multi-carrier base station and a communication system.

The invention provides an optical fiber loop framework comprising a framework body the rim of which is provided with an annular groove. A plurality of optical fiber grooves are arranged at the bottom of the groove of the framework body along an optical fiber winding direction; and the distance of the adjacent optical grooves is consistent with the diameter of an optical fiber to be wound. A plurality of positioning bulges and positioning grooves, which are convex and concave alternatively, are arranged on the lateral wall of the framework body along the optical fiber winding direction; and the diameters of the positioning bulges and the positioning grooves are opposite to positions, having equal distanced with the bottom of the groove, on the two lateral walls of the diameter of the optical fiber to be wound in a convex-concave mode. An optical loop winding method using the framework comprises the following steps of: 1) calculating and preparing the optical fiber with enough length and remaining a tail fiber enough; 2) marking the both end points and central point of the optical fiber, and marking symmetrical central points on the outer wall at the right side of the framework; 3) tightly adhering the optical fiber to the inner side of the right wall of the framework, aligning the left and right symmetrical central points of the optical fiber to the symmetrical central points with the symmetrical central point mark on the outer wall of the framework, and winding the optical fiber by using a four-pole symmetrical winding method until the two sections of optical fibers are wound to the respective final points respectively; 4) fixing the tail fiber on the framework; and 5) carrying out later-period curing process.

The invention relates to a device and a method for realizing the engine brake; the device comprises an engine exhaust valve, a valve spring, an exhaust cam and a variable hydraulic tappet mechanism; wherein, the exhaust cam is a double-cam structure composed of an outer cam and an inner cam; the variable hydraulic tappet mechanism is positioned between the exhaust valve and the exhaust cam and is able to realize the switching between the inner cam and the outer cam; the engine exhaust valve is controlled by the outer cam in the normal operating stage and controlled by the inner cam in the brake stage; according to the designed profile line of the inner cam, the exhaust valve is controlled to be opened in the late period of the compression stroke and during the expansion stroke to realize the engine brake effect. The device and the method for realizing the engine brake have the advantages of simple structure, easy control, high reliability, realizing the engine brake and particularly realizing the rapid brake of the diesel engine.

The invention relates to a prefabricated bearing platform suitable for a large-diameter tubular column foundation of a sea bridge and a construction method of the prefabricated bearing platform. The prefabricated bearing platform is of a multi-box lattice type concrete structure, and a box chamber and the large-diameter tubular column foundation are uniform in arrangement. Movable steel bottom plates are arranged at positions, corresponding to tubular columns, of bottom plates, and connecting reinforcing steel ribs are arranged on the inner wall of the prefabricated bearing platform. The construction method includes the steps of prefabricating the bearing platform in a dry dock on the bank side, filling the dry dock with water after the bearing platform is prefabricated, enabling the prefabricated platform to float by itself, opening a lock when the water level inside the dock is flush with the water level of the sea surface, and dragging the prefabricated bearing platform to the position of a pier; filling the prefabricated bearing platform with water so that the prefabricated bearing platform can sink onto a temporary support, and erecting an operating platform on the top of the prefabricated bearing platform; taking down the movable steel plates, conducting tubular column sinking construction, pouring underwater bottom sealing concrete, pumping water, bonding the reinforcing steel ribs, pouring bearing platform concrete, and forming a complete bearing platform structure. According to the prefabricated bearing platform and the construction method, platform erecting expenses can be saved, materials are used completely, construction investment and time are saved, and the prefabricating bearing platform can bear force together with later period bearing platform concrete.

The invention discloses a database table space monitoring method. The method comprises the steps that a specific growth period and an alarm threshold valve of minimum available days of database table space are set in advance; the using conditions of a daily table space data volume is acquired regularly; a latest period serves as an acquisition cycle, the daily data growth amount during the acquisition cycle is extracted, and a reference value of the daily growth amount is calculated; the number N1 of the available days of a surplus capacity is calculated according to the surplus size of the current table space and the reference value of the daily growth amount; a judgment is conducted on the number N1 of the available days of the surplus capacity to see if the specific growth period is included, and the available days of the surplus capacity are adjusted; the table space with the available days of the surplus capacity reaching the alarm threshold valve is subjected to early warning. According to the database table space monitoring method, the table space usage rate information can be automatically transformed into the available days accurately by dividing the database table space growth into a normal business data growth period and the specific growth period, so that effective assessments of the daily business data growth amount and the available days of the surplus capacity of all the current table space are achieved.

The invention relates to a method for preparing polyacrylonitrile spinning solution, which mainly solves the problem that a reactor easily has phenomena of adhesion, gelation and shake in the late period of polymerization in the reaction process of preparing the polyacrylonitrile spinning solution in the prior art. The problem is better solved by a technical scheme that a reactor with a double helical ribbon stirring blade is adopted in the process of preparing the polyacrylonitrile spinning solution, the lower part of the reactor has a truncated cone shape, and the double helical ribbon stirring blade corresponding to the lower part is a conical double helical ribbon stirring blade. The method can be applied to industrial production of the polyacrylonitrile spinning solution.

The invention provides food preservative, which comprises a kernel and a cladding layer, wherein the kernel contains 45 percent to 95 percent of preservative and 0 to 5 percent of bond; and the cladding layer is a 5 percent to 50 percent of membrane-controlled material. The invention also provides a preparation method of the food preservative. The food preservative overcomes the defects of the present food preservative during the fermentation process that the fermentation is influenced, the fermentation rate is low to influence the fermentation of the fermentation-typed food, the coating rate of the soluble membrane-controlled material for coating the preservative is low, the coating effect is poor, the production procedure is complicate by adopting molten and mixing process to produce the micro capsule food preservative and the like. The food preservative is temperature-sensitive preservative, and the preservative material can be completely coated by the membrane-controlled material, so the preservative can be released at a fixed point at the late period of the food processing, the application effect is good, the stability is good, and the food preservative is suitable for different food processing techniques.

The invention relates to the technical field of road construction, and provides a prefabricated concrete road system, which includes base layer curb stones; the curb stones are composed of horizontal stones and vertical edge stones; the area surrounded by the horizontal stones is paved with asphalt surface layer, Concrete pavement base and graded gravel layer; the concrete pavement base is spliced ​​by several concrete slabs; the lower part of the gap between adjacent concrete slabs is filled with elastic materials, and the upper part is filled with expansion waterstop strips. The quality of the prefabricated concrete road system is easy to guarantee, easy to install, and easy to replace after being damaged. Also provided is a construction method, which includes filling the foundation layer; paving curb stones and rainwater wells; paving the graded crushed stone layer; paving the concrete pavement base; filling the joints of the concrete slabs with elastic materials; The curbstones and concrete slabs in this construction method are all processed in the factory, the site construction efficiency is high, and the later maintenance period is short.