46results about How to "Strong on-site operability" patented technology

The invention belongs to a radar calibration device, and relates to a three-dimensional radar altitude dynamic calibration device and method based on an unmanned helicopter with rotor wings. The radar altitude dynamic calibration device comprises three big dipper receiver terminals, a warship-mounted radar data recording device, a flying control system and a calculating sub-system, wherein the three big dipper receiver terminals include a big dipper receiver I which is installed on a reference point of a wharf and serves as a reference station, a big dipper receiver II which is installed in the center of a warship equivalent position and a big dipper receiver III installed on the unmanned helicopter with the rotor wings. During calibration, the big dipper devices are additionally arranged on the unmanned helicopter with the rotor wings and the warship, changes of physical positions of the unmanned helicopter with the rotor wings and the warship are recorded, meanwhile, data are recorded synchronously through a warship radar, error processing analysis is carried out on truth-value data recorded on the unmanned helicopter with the rotor wings and the recorded data of the warship radar, and ultimately a radar elevation error value is obtained.

The invention relates the salt-water cement mud. The mud comprises 100 parts G grade cement, 44-50 parts 15-18% salt-water, 1.2-1.8 parts salt resistance dispersing agent, 3-4 parts salt resistance filtration-reducing agent, and 0.1-0.5 parts defoaming agent. The invention also provides the technology, which has low cost and simple operation and meets other mating technology. The cement has advantages of low temperature fast coagulation, good salt resistance, high-early-strength, preference consistency, low filteration loss and good stability.

The invention relates to a combined steel column, and in particular relates to a multi-tube combined steel column and a manufacturing method thereof, belonging to the field of steel structures. The multi-tube combined steel column comprises a bottom column plate, wherein a main steel tube component is arranged at the upper part of the bottom column plate; the main steel tube component is sleeved by an outer circular partitioning plate; a small steel tube component fixed together with the main steel tube component is arranged at the upper part of the bottom column plate; a plurality of anti-shearing buttons are arranged at the bottom of the bottom column plate. The multi-tube combined steel column and the manufacturing method thereof are compact in structure, low in manufacturing cost and high in assembling precision.

The invention provides a bitter drabanemerosa hebecarpa bean vegetable jelly type environment-friendly slurry, comprising the following components: 6-12g of bitter drabanemerosa hebecarpa bean vegetable jelly, 0.2-0.6g of hydrolyzed polyacrylamide with at least molecular weight of 12 million, 0.2-0.6g of sodium hydroxide and 1,000ml of water. The invention has ready availability of raw materials, stable performance, excellent rheological characteristics, good capability of lubrication, leak stoppage, suspending to remove debris and resisting dilution shearing, simple fabrication operation, low cost and good environment-friendly performance. The invention also provides a method for preparing the bitter drabanemerosa hebecarpa bean vegetable jelly type environment-friendly slurry.

The invention belongs to the technical field of virus detection, and particularly relates to a reverse transcription loop-mediated isothermal amplification (LAMP) primer, a reverse transcription LAMP kit and a reverse transcription LAMP detection method for visually detecting a Hobi-like pest virus. An upstream inner primer FIP, a downstream inner primer BIP, an upstream outer primer F3 and a downstream outer primer B3 of the specific LAMP primer are synthesized; the kit is prepared from the following components: a 10*Thermo Pol reaction buffer solution, dNTP, MgSO4, Bst DNA polymerase, AMV Reverse Transcriptase, a Ribonuclease Ihibitor, DEPC water, a developing reagent and the primer. The kit is high in specificity, high in sensitivity, quick and high in operability.

The invention discloses a casing type in-hole instrument positioning and embedding device. A monitoring instrument is fixed onto a mounting plate through super glue; the mounting plate is fixed onto a mounting main frame through positioning threaded holes and positioning screws; the mounting main frame is inserted into a drill hole; the mounting plate fixedly provided with the monitoring instrument is arranged in the position inside the inner cavity of the mounting main frame wherein the positioning threaded holes are formed, and then the mounting plate is aligned to the threaded holes and fixedly mounted and positioned on the mounting main frame from top to bottom layer by layer; a grouting pipe is inserted inside the drill hole and performs grouting until the drill hole is filled with grout. The casing type in-hole instrument positioning and embedding device is simple in structure, convenient to operate, free from complex mounting operations, accurate in positioning and capable avoiding restriction of external severe environments and influence on backfilling. The casing type in-hole instrument positioning and embedding device is particularly applicable to positioning and mounting monitoring instruments in narrow space and meanwhile is high in mounting effects and simple in operation.

The invention provides a sealing surfacing layer in a steam turbine valve. The sealing surfacing layer is composed of the following elements of, in percentage by mass, 0.008%-1.20% of Mn, 0.40%-7.50%of Fe, 45.00%-80.00% of Ni, 10.00%-30.00% of Cr, 2.00%-5.50% of Nb, and 4.00%-13.00% of Mo. The invention further provides a surfacing method of the sealing surfacing layer in the steam turbine valveand a structure of the sealing surfacing layer. According to the sealing surfacing layer in the steam turbine valve and the structure thereof provided by the invention, the problem that parts with surfacing hard alloy in the steam turbine valve are cracked after being operated for a period of time can be effectively solved, the process of surfacing is reduced, and the field operability is high.

The invention provides a seabed comprehensive cultivation device for stichopus japonicus and comb shells, which comprises a stereoscopic support; at least two layers of cultivation areas are arranged at the upper part of the stereoscopic support; each cultivation is wrapped with a net; the cultivation area on the bottommost layer is used for cultivating stichopus japonicus, and a plurality of stichopus japonicus bunkers are fixedly arranged on the net at the bottom; the cultivation areas of the rest layers are used for cultivating comb shells; a plurality of longitudinal nets are fixedly arranged between the nets on two opposite side surfaces of the cultivation areas for cultivating comb shells; and a plurality of stereoscopic nets are arranged on each longitudinal net. The invention provides a comprehensive cultivation device suitable for multiple nutritive salt layers of seabed according to the biological and ecological characteristics of stichopus japonicus and comb shells, so that the growth of stichopus japonicus can be promoted, and the cultivation yield of a unit area of comb shells can be improved; the device has the characteristics of simplicity in operation and strong field operability; and complementarity of sea area and different ecological niches can be utilized fully, so that the cultivation yield can be improved, and the environment stress can be reduced.

The invention provides a thickened oil huff and puff well viscosity reducing method by utilizing steam flooding desulfuration associated gas. The method comprises the steps that after the steam flooding desulfuration associated gas and a viscosity reducer suitable for being compounded with the steam flooding desulfuration associated gas are successively injected into a thickened oil huff and puffwell alternately, pumping production is conducted. According to the method, the steam flooding desulfuration associated gas and the neutral viscosity reducer are successively injected into the thickened oil huff and puff well, through the synergistic effect of the gas and the neutral viscosity reducer, the viscosity of crude oil in the thickened oil well is reduced, the liquidity of the crude oilis improved, gas injection can supplement the stratum energy and improve the flowback capacity of the oil well, and therefore the purpose of increasing the yield of the thickened oil well is achieved.