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959results about How to "Address limitations" patented technology

Technological process for producing super-thick plate

The invention relates to a process for producing an ultra-thick plate and belongs to the field of rolling and producing an ultra-thick steel plate in the metallurgical industry. The invention mainly overcome the defect of producing the ultra-thick steel plate by a traditional model casting manufacturing blank and an electro-slag remelting manufacturing blank. The method comprises the following steps: cutting and fixing lengths of the blanks, mechanically conditioning the blanks (eliminating, leveling and cleaning a single-surface oxide layer of a casting blank with a milling machine, a planer or a shot blast); clamping an assembly (relatively superposing the cleaning surfaces of the two blanks after processing, placing the two blanks oppositely and clamping the blanks); mounting the blanks in a vacuum chamber of an electronic beam welding machine for purpose of vacuuming; sewing the assembly on the electronic beam welding seal edge, heating the assembly in a furnace and rolling the assembly through temperature control; and then producing the ultra-thick steel plate. Compared with the traditional electro-slag remelting production process, the process has the advantages of high production efficiency, reduced electric power consumption, less investment of production devices and low production cost. Compared with the traditional die casting production process, the process solves the problem of segregation and looseness of a large-scale die casting ingot center part; the finished product ratio is high; and the finished product ratio of blank assembly is over 90 %.
Owner:SHANDONG IRON & STEEL CO LTD

Mobile-terminal-based identity authentication system and method

The invention provides a mobile-terminal-based identity authentication method and a mobile-terminal-based identity authentication system. The method comprises the following steps of: (1) acquiring an initial password for the login of a self-service server; (2) logging in the self-service server to acquire an initializing sequence number of a mobile client by a user; (3) initializing the mobile client; and (4) performing identity authentication, namely a user makes a login application to a third party application server, a mobile terminal makes an authentication request to an authentication server, and the third party application server returns an authentication result to the user after obtaining a mobile terminal authentication result from the authentication server, wherein the authentication request made by the mobile terminal to the authentication server comprises dynamic password authentication and position information authentication. Hardware equipment is replaced by a software client, so that the production cost of hardware is saved; and by a dynamic factor (a time factor or an event factor) between the software client and the authentication server, synchronization can be conveniently realized, and integration with a third party application system is facilitated, so that limitation and shortcomings caused by the use of the hardware equipment to the whole authentication system are completely overcome.
Owner:TIMESAFER BEIJING TECH

Robot distributed type representation intelligent semantic map establishment method

The invention discloses a robot distributed type representation intelligent semantic map establishment method which comprises the steps of firstly, traversing an indoor environment by a robot, and respectively positioning the robot and an artificial landmark with a quick identification code by a visual positioning method based on an extended kalman filtering algorithm and a radio frequency identification system based on a boundary virtual label algorithm, and constructing a measuring layer; then optimizing coordinates of a sampling point by a least square method, classifying positioning results by an adaptive spectral clustering method, and constructing a topological layer; and finally, updating the semantic property of a map according to QR code semantic information quickly identified by a camera, and constructing a semantic layer. When a state of an object in the indoor environment is detected, due to the adoption of the artificial landmark with a QR code, the efficiency of semantic map establishing is greatly improved, and the establishing difficulty is reduced; meanwhile, with the adoption of a method combining the QR code and an RFID technology, the precision of robot positioning and the map establishing reliability are improved.
Owner:BEIJING UNIV OF CHEM TECH

System and method for pervasive enablement of business processes

A system and method for pervasive enablement of business processes that effectively integrates workflow technology and ad-hoc collaboration tools. Collaboration tools comprise a plurality of native communication devices capable of interacting with the user either using text or voice mechanism. A modality adapter associated with each collaboration tool (or modality) performs the function of translating staff activities to device-specific messages and receiving replies from the users and sending them back to the engine. A Workflow Engine executes the business process and sends out staff activities meant for human users to the Interaction Controller and other activities meant for software agents to Web Services. An Interaction Controller entity utilizes the Context Service and the Address Book to determine the appropriate modality or collaboration tool for a user and sends the staff activity to the appropriate modality adapter. A Context Service that provides context information, user preferences to the Interaction Controller. The Address Book contains a repository of device addresses specific to each modality a user might use. The system enables users to collaborate with each other anytime and anywhere using an appropriate collaboration modality and participate in backend business processes by performing staff activities using their preferred collaboration device.
Owner:IBM CORP

Absorption tower for desulfurization and denitrification combined with oxidant in forward-flow and back-flow spraying and method

The invention discloses an absorption tower for desulfurization and denitrification combined with an oxidant in forward-flow and back-flow spraying mode and a method. The absorption tower includes two washing sections: a first section is a desulfurization loop and arranged on the lower portion of the absorption tower, and sulfur dioxide and hydrogen chloride are removed through slurry forward-flow and back-flow and smoke contact cleaning; a second section cleans oxidized smoke pollutants in slurry back-flow and smoke contact mode mainly for removing oxynitride and heavy metal mercury. A slurry divider is arranged between the two cleaning sections, the bottom of the slurry divider is an oxidization area, and strong oxidant is sprayed in the area. For reducing consumption of the oxidant, a catalyst is added in second-loop slurry for achieving auxiliary oxidization. Sulfur dioxide, oxynitride, heavy metal mercury and the like can be removed simultaneously in a washing tower by the technology, and the absorption tower has the advantages of being high in efficient and simple and suitable for various combustion devices including fuel coal power stations, refuse incineration plants, organic and inorganic production enterprises and the like.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1

Power distribution network reliability evaluation method based on AHP and entropy weight method

The invention provides a power distribution network reliability evaluation method based on an AHP and an entropy weight method. The power distribution network reliability evaluation method comprises establishing a power utilization reliability index system including a new basic index reflecting the power quality; numbering a power distribution network to be evaluated and acquiring the value of thebasic index through calculation; carrying out subjective weight determining on the basic index by means of an analytic hierarchy process and acquiring the subjective weight [Theta]f through calculation; carrying out objective weight determining on the basic index by means of an entropy weight method and acquiring the objective weight [Omega]f through calculation; carrying out combinatorial optimization on the acquired subjective weight [Theta]f and the objective weight [Omega]f by means of a least square method and acquiring the comprehensive weight [Sigma]f of the basic index; and calculating the power utilization reliability comprehensive evaluation value of each power distribution network. According to the invention, a new index which takes the load capacity as the weight and reflectsthe power quality is increased in a conventional power utilization reliability index system, the subjective condition is considered, and the objective weight determining is combined, the power utilization reliability index system is expanded and improved, and the technical problem that in a conventional entropy weight method, the index weight is out-of-balance and the conventional entropy weight method has limitations is solved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

Single order high precision large-sized object three-dimensional digitized measurement system and measurement method thereof

InactiveCN101509763ASolve workpiece wearAddressing Probe Operational LimitationsUsing optical meansIntelligent designStimulus detection
The invention belongs to the field of image processing and pattern recognition and relates to a three-dimensional digital measurement method of a monocular high accuracy large-scale object. The method needs to attach a digital solid coding marking point at the key dimensional part of an object to be measured and put a cross target on which a coding marking point is attached beside the object, and the coding marking point can show the framework information of the object. A high accuracy digital camera is adopted first to collect images at four positions of the object to be measured; then an SCDP (Single Camera Different Position) method proposed by the invention is applied to obtain precision three-dimensional coordinate of the framework coding marking point, a space is divided into a plurality of sub-areas; inside the sub-areas, an SFMS (Shape From Multi Shading) method proposed in the invention is adopted to obtain the corresponding three-dimensional coordinate of each pixel point of images; and by combining with the color information of the coordinate, a color three-dimensional digital model of the object is consequently obtained to provide data foundation for the subsequent intelligent design. The SCDP and the SFMS method proposed in the invention enrich the basic theory of three-dimensional visualization measurement, lay a foundation for the monocular three-dimensional visualization detection theory and boost the level of Chinese manufacturing industry.
Owner:TIANJIN POLYTECHNIC UNIV
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