79results about How to "Guarantee security requirements" patented technology

The invention discloses a tripterygiumforrestii composite mixed insecticide for high-efficiency prevention and cure to tea geometrid, which belongs to the technical field of botanical insecticides and pesticides. The insecticide consists of the following components by weight percentage: 0.4 percent to 20 percent of crude tripterygiumforrestii extracts, 1 percent to 8 percent of tea saponin, 0 percent to 12 percent of dispersants, and 0 percent to 12 percent of emulsifiers and solvent or filler for the rest percentage. After the crude tripterygiumforrestii extracts are mixed with the tea saponin, the control effects to higher and lower instar larvaes of tea geometrid within 1 to 7 days after being treated can be outstandingly improved, and can be respectively increased by 5.68 to 11.10 times and 1.00 to 6.91 times, thus reducing the cost to use the pesticides and also being beneficial to protecting the tripterygiumforrestii which is a botanical pesticide resource. Therefore, the problem that both the effective control of the main injurious insecticide that is tea geometrid, and the drinking safety of tea in the tea production can not be maintained at the same time for a long time is solved. The composite mixed insecticide of the invention can be popularized and applied to the tea planting and pesticide production enterprises.

The invention provides a construction method of municipal drainage culvert sinking trough. The construction method comprises the following steps: manufacturing a groove-type culvert prefabricated part with a cutting foot at the lower part by adopting the ground or semi-underground cast-in-place segmental method on the construction line of municipal drainage culvert; excavating earthwork in the cutting foot which is at the lower part of the groove-type culvert prefabricated part; sinking the earthwork to a predetermined depth by the own gravity of the groove-type culvert prefabricated part or by external force; manufacturing a culvert base plate by the cast-in-place method between the cutting feet which are at the lower part of the groove-type culvert prefabricated part; backfilling to the height of the original ground surface or road surface with sediments outside the groove-type culvert prefabricated part. Compared with the prior art, the construction technology has the advantages of high rigidity, strong safety, little influence on adjacent buildings and various pipes; the invention further has the advantages that little precipitation and displacement occur on the earth surface; the solidity and durability are better than that of open municipal drainage pipeline construction, and the invention overcomes various drawbacks that the current drainage pipelines with major diameters are not easy to manufacture, transport and construct and are easy to leak.

The present invention relates to a dual-laser driving circuit and a scanning laser radar ranging device and method. The circuit comprises a voltage doubler unit for outputting a pulsed high voltage toa first node when a first driving pulse signal is received, a power storing and releasing unit used for storing electric energy when a pulse voltage is present at a first node, releasing a first electric quantity to a second node when a second driving pulse signal is received and releasing a second electric quantity to the second node when a third driving pulse signal is received, and a light emitting unit which is used for generating a laser signal of first power when the first electric quantity is inputted at the first node and generating a laser signal of second power when the second electric quantity is inputted at the second node. The scanning laser radar ranging device is realized based on the above circuit. The method is realized based on the above device. According to the embodiment of the present invention, the requirements of human eye safety by near-distance laser power can be ensured, stray light at a close range is filtered, far-distance and near-distance ranging is achieved, and the ranging ability of a lifting device is improved.

The invention discloses a high-glowing filament scratch-resistant PC material suitable for a tablet computer shell and a preparation method thereof. The material is prepared from, by weight, 65-70% of PC, 10-14% of flame retardant, 10-18% of scratch-resistant agent, 4-6% of toughening agent, 0.4-0.6% of anti-dripping agent, 0.1-0.2% of primary antioxidant, 0.3-0.4% of auxiliary antioxidant, 0.5-0.6% of lubricating agent and 0.3-0.5% of weather-proof agent. Engineering plastic PC is used as a main material, the halogen-free flame retardant, the toughening agent, the scratch-resistant agent, anti-dripping agent, the antioxidants, the weather-proof agent and the lubricating agent are added, all the materials are subjected to melt blending through a double-screw extruder, and the high-glowing filament scratch-resistant PC material suitable for the tablet computer shell is prepared. The material has the advantages of low price, low weight, scratch resistance, good weather fastness, halogen-free flame retardation, high-glowing filaments, excellent mechanical properties, high practicability and the like. Meanwhile, the preparation method of the material is simple and easy to implement and can be widely applied to industrial production.

The invention discloses a structural system for controlling transverse response of a cable-stayed bridge main beam, auxiliary piers and transition piers. A cable-stayed bridge comprises a main beam, bridge towers, auxiliary piers and transition piers. The structural system comprises a plurality of transversely arranged first elastic supports and a plurality of first power damping devices among the main beam and the bridge towers, a plurality of transversely arranged second elastic supports and a plurality of second power damping devices among the main beam and the auxiliary piers, and a plurality of transversely arranged third elastic supports and a plurality of third power damping devices among the main beam and the transition piers. The structural system can effectively control transverse displacement and internal force response of the cable-stayed bridge main beam, the auxiliary piers and the transition piers, is simple and reasonable in execution scheme and good in economy, and can be popularized and applied to other bridge types such as suspension bridges.

The invention discloses a reinforcing method and structure for a retaining wall. An economical structural form and the reinforcing structure with bamboo cavities oppositely pulled are provided. Prefabricated bamboo cavities and prefabricated bamboo hollow crown beams are both bamboo material products; the bamboo material products are used for replacing frequently-used rebar concrete materials; the prefabricated bamboo cavities and the prefabricated bamboo hollow crown beams are internally filled with original soil mass or gradation homogeneous stones; and the safety requirement of an original retaining wall can be well guaranteed, the effects that local materials are used and the material utilizing rate is increased are also achieved, waste of resources is reduced, and the requirement of the mind of energy conservation and emission reduction of the state is met.

The invention provides a method for dispatching a safety sensitive workflow based on task replication in cloud computing. The method is named as an SOLID and includes two important stages that 1, task dispatching based on selective task duplication is performed; 2, the task relaxation time is utilized to encrypt workflow intermediate data. The safety demand problem of the intermediate data in the workflow operating process is always not considered in an existing workflow dispatching method at present is solved. In addition, the resource free timeslot caused by data dependence relation of workflow tasks is not fully utilized. The method overcomes the shortcomings, finally randomly produced workflows are used for a simulation experiment, and an experiment result indicates that the dispatching method is better than existing algorithms.

The invention belongs to the technical field of track traffic and discloses a suspended single-track large-span track beam system. The suspended single-track large-span track beam system comprises a main beam and steel box track beams, wherein a longitudinal direction of the main beam extends along a front-rear direction; the main beam comprises a top beam and two side boxes; the two side boxes are parallel to each other and respectively arranged at the left and right ends at the bottom of the top beam; the left and right side boxes respectively penetrate through bridge towers on correspondingsides and are nested on the bridge towers on the corresponding sides, so that fixed connection between the bridge towers and the main beam is realized; in addition, each of the side boxes is respectively connected with the bridge tower on the corresponding side by virtue of a stay cable; two steel box track beams are arranged; a longitudinal direction of each of the steel box track beams extendsalong the front-rear direction; each of the steel box track beams is suspended on the top beam; and the two steel box track beams are positioned between the two side boxes. The suspended single-tracklarge-span track beam system disclosed by the invention has the characteristics of being simple in structure and clear in stress, and the requirements on structural safety and service function in thesuspended single-track large-span track beam are met.

The invention relates to slabs for buildings, and particularly relates to a slab for buildings combined with interlocking blocks as well as a jointly shock-resistant assembly method for the slab and a wall body. The slab is characterized in that the slab body is prefabricated by lightweight aggregate concrete and is respectively consistent with the center line of the bay of a house in size and shape. The method comprises the following steps: placing a pre-weaved double-layered rhombic steel mesh framework on a horizontal vibrating mould table; pouring special quick-setting cement, fireproof lightweight aggregate and river sand packing on the mould table through stirred concrete; stripping the mould through vibration to preserve and mould; and then, conveying the whole slab to the field for pin assembly through hoisting and conveying equipment on interlocking hollow or blind hole bricks or a ring beam brick wall body. According to the slab provided by the invention, the quality of the slab is fully ensured, and the slab is simple and quick to assemble, so that the building speed of houses can be effectively improved. Therefore, the slab provided by the invention is particularly suitable for multilayer houses developed and built by groups in rural towns.

The invention provides a preparation method of adipic acid dihydrazide. The preparation method is characterized by comprising steps as follows: S1: hexanediol and strong acidic salt are added to methanol and then subjected to heating reflux for an esterification reaction, dimethyl oxalate is produced, and the esterification reaction is performed; S2: hydrazine hydrate is added, dimethyl oxalate prepared in the step S1 is added to hydrazine hydrate, and methanol is added for a hydrazine substitution reaction; S3: impurities are removed. The yield of adipic acid dihydrazide can be increased, and the content of free hydrazine is reduced.

The invention provides an ultrasonic endoscope device, belonging to the field of medical instruments. The ultrasonic endoscope device provided by the invention comprises: an ultrasonic navigation puncture needle, which is used for puncture positioning; an ultrasonic foraminal mirror, which is used for synchronously carrying out endoscope imaging observation and ultrasonic observation in an operation area; an ultrasonic detector, which is internally provided with a third ultrasonic part in a penetrating manner and is used for performing ultrasonic observation on a specific visual field; and a display unit, which is used for image development on signals acquired by a first ultrasonic part, an endoscope assembly, a second ultrasonic part and the third ultrasonic part. By means of the ultrasonic endoscope device, an ultrasonic probe is allowed to have an opportunity to approach nervous tissue at close range; meanwhile, real-time ultrasonic imaging is conducted in the whole operation process, help is provided for possible important tissue damage in the processes of puncture and decompression, and clear and accurate ultrasonic recognition of important tissue is achieved; and no ray radiation exists, so operation safety is improved.

The invention discloses a high-voltage line dual-T rod. A lightning wire bracket (2), an original line upper lead cross arm (3), a dual-T line upper lead cross arm (4), an original line middle lead cross arm (5), a dual-T line middle lead cross arm (6), an original line lower lead cross arm (7) and a dual-T line lower lead cross arm (8) are symmetrically arranged on a vertical rod (1) from top to bottom at certain intervals; the lightning wire bracket (2), the original line upper lead cross arm (3), the original line middle lead cross arm (5), the original line lower lead cross arm (7), the dual-T line upper lead cross arm (4), the dual-T line middle lead cross arm (6) and the dual-T line lower lead cross arm (8) are distributed in a cross way. By adopting the high-voltage line dual-T rod, the original arrangement way of an original line is kept constant, and the vertical distances among lines are doubled; lines in the same loop are connected over the air, and lines in different loops are crossed over the air, so that the line arrangement is compact, and the inter-line safety and line grounding safety are ensured.

The invention discloses a semi-submersible type lifting and disassembling platform and a control method thereof. The platform comprises a port floating body, a starboard floating body, two port stand columns, two starboard stand columns and a deck box, wherein the port floating body and the starboard floating body are each internally provided with a plurality of common water ballast tanks and a plurality of rapid water ballast tanks; the top of the rapid water ballast tank is communicated with a compressed air ballast system, column side water ballast tanks are arranged in the port stand column and the starboard stand column respectively, and the tops of the column side water ballast tanks are communicated with the compressed air ballast system. And water pump ballast systems are arranged on the common ballast water tanks, the rapid ballast water tanks and the column side ballast water tanks. The invention further discloses a control method of the platform. The safety of the platform and workers is ensured to a great extent; a set of emergency response system is established, and what is guaranteed is that when the platform encounters sudden failures in open-sea operation, platform operation command is smooth in real time, emergency rescue is rapid and accurate, and staff deal with the emergency rescue orderly and safely.

The invention discloses an ultrasonic location navigation and nail path verifying device for implantation of spinal surgery pedicle screws, which is composed of a path opening device (1), a probe (2), a locating gun (3), an ultrasound generating module (4), a data processing module (5), a display module (6) and a printer (7). The locating gun (3) consists of a rotary advancing rod (8), a wheel disc probe (9), a locating sleeve (10) and the like. The path opening device (1) consists of a path opening device head (17), a path opening device body (18) and a handle (19). The probe (2) consists of a probe head (22), a metal inner core (23) and a probe outer sleeve (24). The frequency of the wheel disc probe (9) is 0.2-5 MHz, the frequency of the probe head (22) is 0.2-20 MHz, the frequency of a low frequency path opening probe (20) is 0.2-5MHz, the frequency of a high frequency path opening probe (36) is 5-20 MHz, and the development mode is amplitude modulation type or brightness modulation type. The ultrasonic location navigation and nail path verifying device for the implantation of the spinal surgery pedicle screws ensures the safety in the implantation process and navigation location of orthopaedic surgeries and has large clinical application value.

The invention discloses a reinforcing method and structure for an earth-retaining oblique wall. The reinforcing method comprises the following steps: perpendicularly driving a group of base joint bars below a to-be-reinforced earth-retaining oblique wall, wherein the base joint bars must go deep into effective length of a force-bearing layer of a foundation; then, fixing a pre-manufactured thin-wall cavity pedestal with a tenon to the base joint bars, filling a cavity of the thin-wall cavity pedestal with graded and homogenized stone blocks to form a base of a thin-wall cavity reinforcing wall; galling the oblique surface of the to-be-reinforced earth-retaining oblique wall, and driving an anchor rod in a manner of enabling the oblique surface of the to-be-reinforced earth-retaining oblique wall to be perpendicular to the oblique surface of the oblique wall; fixing the thin-wall cavity reinforcing wall with the end part of the anchor rod, and connecting the thin-wall cavity reinforcing wall with the thin-wall cavity pedestal with the tenon into one; forming a group of water release holes in the thin-wall cavity reinforcing wall, and inserting bamboo water release tubes into the water release holes; and finally, filling the cavity of the thin-wall cavity reinforcing wall with the graded and homogenized stone blocks, and pouring by use of concrete, thereby completing reinforcing the earth-retaining oblique wall. The reinforcing method can meet the safety requirements, and can reduce resource waste.

The invention provides a foundation pit support structure, and belongs to the technical field of foundation pit support. The foundation pit support structure comprises a plurality of row piles, a plurality of longitudinal structural components, and a plurality of jet grouting pile anchor cables, wherein the row piles are arranged on one side of a foundation pit in sequence and inserted into a soil layer, and the top ends of the row piles are connected through a top connecting structure; the longitudinal structural components are arranged on the sides, close to the foundation pit, of the row piles, each longitudinal structural component is connected with the row piles and provided with a plurality of anchor cable fixing positions, and each anchor cable fixing position is located between the two corresponding adjacent row piles; the jet grouting pile anchor cables are arranged on the sides, away from the foundation pit, of the row piles and all obliquely inserted into the soil layer; and each jet grouting pile anchor cable comprises a jet grouting pile body, an anchor cable body is arranged in each jet grouting pile body, and one end of each anchor cable body is connected with the corresponding anchor cable fixing position through a fixed connecting block. By the adoption of the foundation pit support structure, the safety requirement of excavation of the foundation pit can be effectively guaranteed, the arrangement space of the support structure is reduced, the excavation construction difficulty of the foundation pit is lowered, the construction schedule is accelerated, and the requirement for the engineering construction period is met.

The embodiment of the invention discloses a nuclear island static blasting pre-cracking method. The method of the embodiment can improve the quality of nuclear island blasting. According to the embodiment, firstly, a drilling rule and drilling equipment need to be determined; drilling is performed along rock mass in a pre-cracking area by using the drilling equipment according to the drilling ruleto obtain a plurality of blast holes; when the blasthole meets the requirement of the blasthole, a static cracking agent of a proper model is determined; and the static cracking agent and water are poured into a barrel according to a preset water-cement ratio, and are stirred to form slurry in a liquid state, then the slurry is simultaneously poured into the plurality of blast holes, the blast holes are tamped by using a poking rod, and then orifices of the blast holes are blocked by using a blocking material for static blasting. According to the scheme, expansion force generated by a hydration reaction of the static cracking agent is used for enabling the rock mass in the pre-cracking area to crack slowly, a pre-cracking technology is combined, a pre-crack (face) is formed through staticblasting, damage to rock mass in a reserved area during blasting of rock mass in a main blasting area can be weakened during blasting of the rock mass in the main blasting area, and therefore the blasting quality of a nuclear island is improved.

An embodiment of the invention discloses an automobile bus communication line selection device, which comprises a communication interface unit, a protocol comprehensive switch array, a protocol configuration switch array and a control unit, wherein the control unit obtains a plurality of different communication protocol signals through the communication interface unit; the protocol comprehensive switch array decomposes and synthesizes a plurality of different communication protocol signals, gathers the communication protocol signals to a group of communication lines, and then is defined by theprotocol configuration switch array according to pins of automobile OBD diagnosis bases of different automobile types. The required communication protocol signals are configured to the pins corresponding to the automobile OBD diagnosis bases through a set of communication lines, the purpose of diagnosing various different electric control systems through a single interface is achieved, the line selection logic is simplified to the greatest extent, the protocol comprehensive switch array and the protocol configuration switch array are controlled through the control unit, and the reliability ofline selection is improved, the line selection logic is simple and clear, and the cost is reduced.

The invention discloses a maintenance-free single-well water content monitoring device. The maintenance-free single-well water content monitoring device comprises an oil gas separator and a pressure-regulating valve mechanism; the oil gas separator comprises a shell and a rotary blade arranged in the shell; the shell comprises an inlet and an outlet which are formed in the upper part of the shell, and an oil water outlet formed in the bottom of the shell; the position of the outlet is higher than that of the inlet; the inlet aligns with the rotary blade; the outlet position of the oil gas separator is connected with a conveying pipeline; a third pressure-regulating valve is arranged on the conveying pipeline; the pressure-regulating valve mechanism comprises a monitoring pipeline communicated with the oil water outlet, and a first pressure-regulating valve, a sensor and a second pressure-regulating valve which are arranged on the monitoring pipeline sequentially; the pressure of the first pressure-regulating valve is higher than that of the second pressure-regulating valve. The maintenance-free single-well water content monitoring device separates gas and an oil water mixed medium that are contained in crude oil, automatically monitors the water content of the crude oil, and has the advantages of simple structure, low manufacturing cost and the like.

The invention relates to a transformer structure which at least comprises a base, a magnetic core group, a second magnetic core element and at least a winding. The base is provided with an accommodation room and at least an accommodation groove. The magnetic core group comprises a first magnetic core element, a second magnetic core element and a third magnetic core element, wherein the first magnetic core element is provided with a first column, and the third magnetic core element is arranged in the first accommodation groove selectively. The winding is arranged on the base. The base is arranged between the first and second magnetic core elements, and the first column is arranged in the first accommodation room. The third magnetic core element is arranged selectively in the first accommodation groove to adjust the air gap distance between the third magnetic core element and the first magnetic core element and between the third magnetic core element and the second magnetic core element. In the invention, the temperature of the transformer can be reduced so that the transformer fully meets the safety requirements and maintains the inductance needed for operation. The whole process of the transformer can be simplified by the elements including the normalized magnetic core group, the base and the like so that the manufacturing time and cost of the transformer are saved effectively, the whole volume is reduced, and the assembly is easy.

Disclosed is a header for a 630 DEG C steam parameter power station boiler. As for an existing boiler which has the maximum pressure and maximum temperature in the world, the steam temperature is 605/623/623 DEG C, generating coal consumption is 256.16 g/KWH, efficient utilization of coal energy is achieved, and with the development tendency of energy saving and emission reduction, further improving of parameters of a boiler unit becomes the inevitable requirement, and development of the 630 DEG C steam parameter power station boiler is imperative. The header for the 630 DEG C steam parameterpower station boiler is composed of a large header body (7) and a small header body (2). The large header body serves as a high-temperature steam gathering header, and the small header body serves asa high-temperature heating surface steam outlet header; the high-temperature heating surface steam outlet header is connected with a high-temperature heating surface pipe of the high-temperature heating surface steam outlet header through a set of pipe connectors A (1) and connected with pipe connectors C (5) through a set of pipe connectors B (3); and the pipe connectors C are connected with a large header connecting pipe (6), and the large header connecting pipe is connected with the high-temperature heating surface steam outlet header.