1383results about How to "Save time" patented technology

The invention discloses a semi-rigid base pavement damage detection and polymer grouting fast maintenance technology, which utilizes a falling weight deflectometer (FWD) and a ground penetrating radar (GPR) to detect and evaluate the performance of the pavement, identify the pavement damage and realize the lossless and fast detection of the semi-rigid base pavement damage. A grouting hole is perforated on the section that needs damage treatment and polymeric materials are injected into the hole to repair the pavement. The maintenance technology has the advantages of speedy construction, good durability, strong pertinence and excellent waterproof performance of the injected polymeric materials, which not only saves a large amount of funds and construction periods and avoids the adverse social effects caused by long affected traffic, but also is beneficial to environmental protection and resources-saving . The semi-rigid base pavement damage detection and polymer grouting fast maintenance technology of the invention integrates damage lossless detection technology such as the FWD and the GPR, etc. with the polymer grouting fast maintenance technology, thus providing a whole set of advanced, efficient, economical and practical technology for detecting and maintaining the semi-rigid base pavement damage.

The invention relates to an automatic standardized filing method based on text semantic mining. The automatic standardized filing method is characterized by comprising the steps: crawling files from a website, and carrying out information extraction, key word extraction and automatic abstract generation on the crawled file and a local file by utilizing text semantics, and finally storing into an informatization system. For the information extraction, a rule set is established by adopting a knowledge engineering method, information points are automatically extracted from the file to form structural data; for the key word extraction, a key word is extracted according to a position and semantics of a word in a text to generate a key word index; for the automatic abstract generation, a content contained by the abstract is firstly set, corresponding information is extracted from the text, the similarity of sentences is calculated, and the texts including the key information in the original file are extracted. By adopting the automatic standardized filing method, business personnel do not need to read a great amount of files, time and labor are saved, and convenience in inquiry and application can be realized.

The invention discloses an ultrathin-wall steel structure connector and an ultrathin-wall steel structure connecting structure. The connector is a hollow square or oblong connector, the front and rear side plates of the connector are two buckled groove type steels, and the upper and lower side plates are two buckled and noncontact groove type steels, wherein two side wing plates of the upper and lower groove type steels are fixed at the outer sides of the front and rear groove type steel wing plates, and a hoop groove is formed at the noncontact part between the upper and lower groove type steel wing plates. The connector is simple, convenient and fast in operation, and has high strength and good axial constraint performance; and the node has strong integrity, local buckling of the end when the ultrathin-wall profile steel is stressed is effectively controlled, and the bearing capacity of a member is improved. The connector has the characteristic of allowing two connecting members in the same direction, and is suitable for mutual butting of two ultrathin-wall profile steels when the ultrathin-wall profile steel members are not long enough. The connector is simple in installation mode, practical and convenient and fast in operation, and the cost and the working time can be greatly saved.

The invention discloses a road base reinforcing high-polymer loading and grouting method. Aiming at semi-rigid road surface with an incompact base, and flexible base road surface, additional load is applied to the road surface by a loading device, an expansive force of the reacted high-polymer material is prevented from supporting the road surface; and by injecting the high-polymer material into the base, the volume of the reacted material rapidly expands, and the incompact base is solidified so as to fulfill the aim of reinforcing the base. The method has the characteristics of good treatment effect, rapid construction, no curing need, high pertinence, high controllability, fund conservation and the like; and compared with the conventional maintenance method, the method is obviously innovative in technical principle, construction method and other aspects. The unique road base reinforcing method can save a lot of funds and construction period, avoids bad social impact due to long-term traffic closure, and contributes to protecting environment and saving resources.

Disclosed are a building structure and a construction method. The building structure comprises upright columns, prefabricated plates or prefabricated frames and columnar connecting parts. Each prefabricated plate or prefabricated frame comprises reinforced beams or section crossbeams and embedded connecting parts, wherein the reinforced beams or section crossbeams are embedded in the prefabricated plates or prefabricated frames, and the embedded connecting parts are arranged at connecting joints for connecting the reinforced beams or section crossbeams; the columnar connecting parts are mounted at connecting joints of the prefabricated plates or prefabricated frames; the number of the columnar connecting parts is smaller than or equal to that of the embedded connecting parts; each embedded connecting part comprises a first positioning mechanism; each columnar connecting part comprises one to four second positioning mechanisms matching with the corresponding first positioning mechanisms in a one-to-one correspondence manner; and the first positioning mechanisms and the corresponding second positioning mechanisms are vertically connected in an inserted manner, and the columnar connecting parts are fixed with the one to four embedded connecting parts at the connecting joints. The building structure and the construction method have the advantages that various portions of the building structure can be mechanically assembled and disassembled, can be reused, and are convenient in assembly and disassembly, and the connecting joints are firm and reliable in connection and fine in load-carrying capability.

The invention relates to a manufacturing domain of nanopowder composite, especially to a nano antibacterial powder coating and one-step manufacturing method of microsuspension. The nano antibacterial powder coating consists of water, mixture monomer, pigment, surface processing agent, nanometre-sized inorganic antiseptic particle and auxiliary agent. The method comprises dispersing components such as water and suspending disperser by ultra-audio wave, then performing dispersion by high-shear emulsifier to prepare the predispersion; afterwards, adding the other components into polymerization kettle according to priority, after agitation and heating, adding the said predispersion at one time, reacting at a constant temperature, then cooling, discharge, centrifugally dewatering and drying to obtain the product. The invention solves the problems that the nanoparticles are easy to aggregate inside the organic polymer existed in present technology and the manufacturing engineering of the traditional powder coating is difficult, and has advantages that the process flow is short, the equipment investment is low, and can save working hours and energy resource, is of no dust pollution, the prepared powder coating particles is of regular shape, and has better levelling property in application.

The invention relates to a method for setting a high-pressure high-power thyristor electrothermic model and a simulating method. In the invention, first a thermal impedance model of a thyristor is calculated and set according to the finite element method, and a Foster network thermal impedance model is expressed by the identical transformation, subsequently a thyristor equivalent electric model is set by using the mathematical method. The loss Pave(t) is determined by the switch-on forward voltage drop Vtm and the working current IA, an electrothermic model of the thyristor is set by connecting the relation of the variants such as the switch-on forward voltage drop Vtm, the working current IA, the loss Pave(t), the junction temperature TJ and the like, then the simulation is conducted on a Pspice software. The model of the invention contains a thermodynamics and electrics model, which can provides the dynamic relationship between the heating parameters and the electric parameters, can be used for simulating the transient and steady junction temperature change and predicting whether the thyristor works in the safe area, also used for insulating the junction temperature change under the sine semi-wave surge current surge and predicting whether the thyristor fail.