30results about How to "Good technical value" patented technology

The invention discloses a double-row pile foundation pit supporting method, wherein double-row piles are as follows: a front row of piles are inclined to the outside of the foundation pit and a rear row of piles are vertical. The method comprises the following steps: (a) the inclination angle of the front row of piles, the pile length and the pile shaft strength of the front row of piles and the rear row of piles, the space between the front row of piles and the rear row of piles, and the excavation progression of the foundation pit are determined according to the site condition and computational analysis; (b) the cross section, reinforcing ribs and the space of connection beams between the front row of piles and the rear row of piles are determined; (c) the front row of piles and the rear row of piles are constructed; (d) connection beams between top beams on the top of row piles and the row piles are constructed; (e) the foundation pit is excavated; and (f) the bottom of the foundation pit is cleaned and leveled and subjected to further construction. The double-row pile foundation pit supporting method can avoid arrangement of an inner support and an anchor rod to a large degree, is suitable for soft soil and various soil conditions, and can reduce the top displacement of small piles, the bending moment of pile shafts and the construction cost, increase the excavating depth and reduce possibility of causing toppling failure.

The invention discloses water-based metal antirust paint. The water-based metal antirust paint is prepared from, by mass, 35-45 parts of pigment, 8-15 parts of filler, 8-15 parts of corrosion inhibitors, 10-20 parts of deionized water, 15-25 parts of silicone acrylic emulsion, 0.1-0.2 part of a dispersing agent, 0.1-0.2 part of a flatting agent, 2-5 parts of an adhesive force promoting agent, 1-3 parts of film-forming aiding agent, 0.1-0.3 part of surfactant OP-10, 0.1-0.2 part of a defoaming agent and 0.05-0.1 part of bacteriacide. The invention further discloses a preparation method of the water-based metal antirust paint. The water-based metal antirust paint solves the problems that water-based metal antirust paint used in the current market is poor in corrosion resistance and adhesive force, slow in drying, poor in early-stage water resistance and high in cost.

The present invention discloses a unity 3D technology-based resource reuse implementation method and a device thereof. The method comprises the steps of providing a plurality of relatively independent service function entities; providing at least one scene project resource file and configuring a scene model configuration file corresponding to the demand information of the service function entities corresponding to each scene project; configuring an entrance configuration file comprising the description information of at least one scene project resource file; according to the entrance configuration file, dynamically loading at least one corresponding scene project resource file and a scene model configuration file thereof, and injecting the service function entities corresponding to the scene model configuration file into a corresponding scene project. According to the technical scheme of the invention, models and services are separated, so that the reusability of the service function entities is effectively improved. Therefore, the batch production and the large-scale production of unity 3D technology-based dynamic environment monitoring products are realized. As a result, the method and the device have good economic and technical value.

The invention discloses a microseismic signal de-noising method and belongs to the technical field of information processing. The method comprises firstly performing NLMS adaptive filtering preprocessing on a microseismic signal; performing EEMD on the preprocessed microseismic signal; subjecting a decomposed IMF component to threshold de-noising; and reconstructing a de-noised microseismic signal. The microseismic signal de-noising method eliminates pulse interference before the EEMD, suppresses mode aliasing caused by the EEMD, has good anti-noise performance, high calculation precision, good real-time performance, a good technical value and application prospect.

The invention discloses a new spectacle plate and cutting ring material for a concrete delivery pump vehicle, which is prepared from the following raw material components in mass percentages: 20-50% of titanium carbide, 0-15% of tungsten carbide, and 40% of metal bonding phase ~78%; the present invention also discloses a method for preparing a new material of spectacle plates and cutting rings for concrete delivery pump vehicles, which includes the following steps: (1) batching; (2) mixing and grinding; (3) drying and mixing molding agents; (4) sieving; (5) pressing; (6) degumming and sintering; (7) welding and grinding. The invention provides a new material for spectacle plates and cutting rings for concrete pump vehicles and its preparation method. The prepared material has excellent wear resistance, good welding performance, light specific gravity, and low cost. It can be used for customers. Significantly save manufacturing costs, and at the same time save a lot of strategic tungsten resources for the world.

The invention discloses a supporting system of a slant cement soil mixing pile foundation pit. The supporting system comprises a slant gravity wall, a cement soil supporting wall where structural steel or precast piles are slantly inserted, double rows of slant pile supports, double rows of pile supports and a gravity and slant supporting combined gravity wall, wherein one row of pile support is straight, and the other row of pile support is slant. In the slant gravity wall, vertical cement soil mixing piles are changed into cement soil mixing piles with certain angles. In the supporting wallwhere structural steel (or precast piles) is (or are) slantly inserted, the structural steel (or precast piles) is (or are) added into the slant cement soil mixing piles. In the double rows of slant pile supports or the double rows of pile supports, two rows of piles are connected through a crown beam. In the gravity and slant supporting combined gravity wall, the slant cement soil mixing piles are driven into one side of the slant gravity wall or the traditional vertical gravity wall to serve as supporting of the gravity wall. According to the supporting system, pile top displacement is reduced to a large degree, the pile body bending moment is reduced, the supporting engineering cost is reduced, the excavation depth is increased, and meanwhile the possibility that overturn damage happensto the foundation pit is reduced.

The invention provides a system and method for automatically restarting a distributed storage server. The system comprises a master server and a slave server for data communication with the master server. The master server comprises a restart script sending module, which is used for sending a restart script to the slave server when receiving a slave server restart request sent by the slave server;a restart state information receiving module which is configured to receive the restart state information sent from the slave server. The slave server includes a state obtaining module for obtainingstate information of the slave server; a restart script obtaining module used for sending a restart request of the slave server to the master server when the slave server needs to be restarted according to the state information of the slave server; a restart script running module used for receiving the restart script sent by the master server, running the restart script, and sending the restart status information of the slave server to the master server. The system and the method of the invention reduce the maintenance cost of the server and ensure the normal operation of the distributed storage server.

The invention discloses an active inclined dual pile row foundation pit supporting method. The method comprises the following steps that (1) front-row supporting piles inclined towards the interior ofa pit and back-row supporting piles inclined towards the outer portion of the pit are driven to the pile bottom design elevation along the inner side of a foundation pit edge, and meanwhile a waterproof curtain is arranged behind the back-row supporting piles; (2) a jack is arranged at the pile top of each front-row supporting pile; (3) crown beams are arranged on the front-row supporting piles and the back-row supporting piles, and the crown beams on the front-row supporting piles and the back-row supporting piles are connected into a whole through connecting beams; and (4) the soil definedby the front-row supporting piles is excavated to the pit bottom design elevation, and in the excavation process or before excavation, the jacks arranged in the step (2) are adopted for applying control expansion force to the front-row supporting piles so as to reduce displacement of the soil and the pile tops. By means of the method, the pile top displacement can be reduced to a large degree, thebending moment of pile bodies and the engineering cost can be reduced, the excavation depth can be increased, and the possibility of toppling damage happening to the foundation pit can be reduced.

The invention discloses an active X-shaped double-row pile foundation pit supporting method. The active X-shaped double-row pile foundation pit supporting method comprises the following steps of (1) driving front-row vertical support piles to the pile bottom designed elevation along the inner side of the edge of a foundation pit, driving inclined rear-row support piles to the pile bottom designedelevation in the pit and meanwhile arranging a water isolation curtain behind the rear-row support piles; (2) arranging a jack on the pile top of each rear-row support pile; (3) arranging crown beamson the front-row vertical support piles and the rear-row support piles, and connecting the crown beams on the front-row vertical support piles and the rear-row support piles into a whole though connecting beams; and (4) excavating a soil body surrounded by the front-row vertical support piles and the rear-row support piles to the pit bottom designed elevation and applying control expansive force to the rear-row support piles through the jacks so as to reduce displacement of the soil body and the pile tops. Through the active X-shaped double-row pile foundation pit supporting method, the displacement of the pile tops can be reduced to a great extent, the bending moment of pile bodies can be reduced, the construction cost can be reduced, the excavation depth can be increased, and the possibility of collapse and damage to the foundation pit can be reduced.

The invention discloses a braking disc for railway vehicles, which is made of vermicular graphite cast iron. The chemical composition by weight is: 3.45%-3.77% of carbon, 1.86%-2.25% of silicon, 0.5%-0.8% of manganese, less than or equal to 0.02% of sulfur and less than or equal to 0.05% of phosphorus, and the balance is iron, wherein vermicular rate of the vermicular graphite cast iron is larger than or equal to 60%. The braking disc is formed by a left disc body, a right disc body, a first radial connection rib and a second radial connection rib, the diameter of the left disc body is identical to that of the right disc body, the left surface of the left disc body and the right surface of the right disc body are braking work surfaces, and roughness of the two braking work surfaces is respectively 1.6mm-3.2mm. The braking disc for railway vehicles prevents cracks from generating through material replacement and structure adjustment and further avoids safety accidents. The braking distance of the braking disc is moderate, and the braking disc is simple in structure, easy to manufacture, has good economic and technological value and is suitable for large-scale popularization and application.

The invention discloses an ultra-precise three-axis rotary piezoelectric position regulation mechanism and an excitation method thereof, belonging to the technical field of piezoelectric driving. Theexisting piezoelectric position regulation mechanism has insufficient freedom degree, complex structure, and is high in cost and low in accuracy. The ultra-precise three-axis rotary piezoelectric position regulation mechanism solves the above technical problems. The piezoelectric position regulation mechanism comprises a rotor, a drive unit and a base, wherein the drive unit adopts an SMD piezoelectric double crystal beam structure or a sandwich type piezoelectric vibrator structure, and bends so as to drive the rotor to rotate around three axes. According to the excitation method, the rotor can realize large-scale ultra-precise three-axis rotation, and nano-level resolution is realized by regulating amplitude and time of the excitation signal. The piezoelectric position regulation mechanism has a compact structure and is flexible in arrangement. The excitation method is simple and reliable, and has good application prospect in fields like ultra-precise position regulation.

The invention discloses a controlled-releasing herbicide containing cyhalofop butyl, mefenacet and pyrazosulfuron ethyl, which relates to the technical field of pesticide preparation. The controlled-releasing herbicide takes cyhalofop butyl, pyrazosulfuron ethyl and mefenacet as main effective components, wherein the mass ratio of cyhalofop butyl to pyrazosulfuron ethyl to mefenacet is 1-30:1-15:1-50; and the mass percentage content of cyhalofop butyl, pyrazosulfuron ethyl and mefenacet in the herbicide is 30-90%. The controlled-releasing herbicide has an advanced preparation technology, has no pollution, and has good technical value, the controlled-releasing herbicide has the advantage of convenient usage, spraying and fertilizer broadcasting cannot be performed, the controlled-releasingherbicide is directly sprayed at ridge or field, the controlled-releasing herbicide is uniformly dispersed in water through diffusion of the controlled-releasing herbicide in the water or soil, through a plant absorption and conduction principle, weeding effect is achieved, and the controlled-releasing herbicide has the advantages of safe and convenient usage, reduction of labor intensity, reduction of production cost, no environment pollution, and safe and convenient storage and transportation.

The invention discloses a method for detecting the purity of 5-aminolevulinic acid hydrochloride (5-ALA). The method comprises the following information and related steps that a mobile phase A (MPA) is a 0.2% heptafluorobutyric acid aqueous solution, and a mobile phase B (MPB) is a 0.2% heptafluorobutyric acid acetonitrile solution; a chromatographic column adopts octadecylsilane chemically bonded silica as a filler for separation; preparing of a sample solvent is carried out, wherein water/acetonitrile in a ratio of 95/5 as the sample solvent, wherein the solvent is also used as a blank solution; preparation of a system applicability solution is carried out, wherein 100 mg of a 5-ALA system applicability reference substance and 5 ml of a sample solvent are uniformly mixed, and the sample is diluted with the sample solvent to a scale; preparing of a sample solution is carried out, namely preparing is performed by using a sample instead of a 5-ALA system applicability reference substance under the same conditions, subsequently the solutions are injected into a high performance liquid chromatograph according to a sample injection sequence, and a chromatogram of the solution under the wavelength of 265 nm is measured. Through the mode, compared with an existing USP method, the method has the advantages of being high in principal component retention, good in chromatographic peak shape and higher in detection accuracy, and is more suitable for purity analysis of the compound.

The invention provides an extrapolation method of seismic data first arrival waves. The method comprises the steps of firstly, arranging a time window around a first arrival wave of a shot gather; secondly, carrying out deconvolution and superposition on the wave fields of the reference channel and the target channel in a shot domain to form a virtual wave field; thirdly, subjecting the referencechannel wave field and the virtual wave field to convolution and superposition in a detection point domain to obtain a super virtual first arrival wave; judging whether loop iteration is adopted or not; in addition, carrying out first arrival wave extrapolation, and the target channel being located outside the detector arrangement of the target shot gather; then, sequentially carrying out deconvolution superposition and convolution superposition in a shot domain and a detection point domain to obtain extrapolated super virtual first arrival waves; and judging whether loop iteration is adoptedor not. According to the method, the energy of the first arrival waves can be effectively enhanced, the signal-to-noise ratio of the first arrival waves is improved, meanwhile, the data volume of theavailable first arrival waves is greatly increased through extrapolation of the first arrival waves, richer information is provided for subsequent seismic data processing, and the method can be wellapplied to seismic data collected under complex near-surface conditions.

The invention belongs to the technical field of superheated steam coal upgrading of semiconductor thermoelectric power generation, and particularly relates to a thermal compensation type superheated steam coal upgrading system with the thermoelectric power generation function. Raw coal enters the superheated steam fluidized bed through the coal bunker after being crushed and screened by the coal crusher, flows out from the bottom of the fluidized bed after heat and mass transfer, and becomes upgraded coal after passing through the coal cooler; the superheated steam source is from an electric superheated steam generator and a superheated steam exhaust, and heat sources of the waste heat exchanger and the solar heat exchanger are used for carrying out heat compensation on superheated steam production; water contained in the raw coal is heated and evaporated in the fluidized bed, is mixed with superheated steam after being sprayed through a nozzle to form secondary steam, is introduced into the secondary steam heat exchanger tube bank after passing through the circulating fan, exchanges heat with the raw coal again, and is condensed into separated water; the flue gas, the blowdown waste heat source, the solar heat source and the circulating superheated steam are used as a high-temperature side heat source for thermoelectric power generation, and the cooling water and the separatedwater passing through the buried pipe group in the coal bunker are used as a low-temperature side cold source for thermoelectric power generation.