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83 results about "Two-form" patented technology

In linear algebra, a two-form is another term for a bilinear form, typically used in informal discussions, or sometimes to indicate that the bilinear form is skew-symmetric. In differential geometry, a two-form refers to a differential form of degree two. In other words, a two-form is an order 2 skew-symmetric covariant tensor field. For a given vector space, the space of two-forms is spanned by the wedge product of basis one-forms. See differential form.

Multimedia platform synchronizer

A karaoke home entertainment center for streamlining karaoke show; reduce stress, problems and time pressure on the KJ & to prevent piracy. The inventive device includes Ultimate Karaoke Book, Karaoke Rental Systems, ProPlayer, Karaoke Shoppe Download Centre, Karaoke Burning Station, Downloadable Karaoke CD+G Player, Video Library Pro, DRM and Licensing encryption engine, Pre-manufactured CD DRM. The Book eliminates the majority of KJ typing when creating or updating their book. Book with minimal player forms the Karaoke Rental System. ProPlayer incorporates super encryption Dongle or soft encryption, which permits “back-up” copy but can only be used with the original dongle. Karaoke Shoppe Download Center consists of basic computer system that can access our on-line database or come pre-loaded with encrypted songs. Karaoke burning Station Kiosk is either counter-top or stand-alone kiosks that can contain and deliver cds. Downloadable Karaoke CD+G Player is a quality karaoke player that doesn't require a special piece of hardware (other than a personal computer). It can download and play karaoke songs and be given away for free. Video Library Pro is an adaption of the book and player above designed for video professionals. There are two forms of DRM and Licensing encryption engine that perform the function of file protection. Together they form the Karaoke Home Entertainment Center.
Owner:SEIFLEIN PHIL +1

Dual-band co-aperture flat array antenna

The invention discloses a dual-band co-aperture flat array antenna which is applied to multiband homing heads and intelligent ammunition guidance systems. The dual-band co-aperture flat array antenna comprises a single-ridge waveguide slot array surface, a substrate integrated waveguide slot array surface, single-ridge waveguide slot array feed networks and a substrate integrated waveguide slot array feed network. The single-ridge waveguide radiation slot array surface comprises a plurality of rows of parallel single-ridge waveguide radiation slot line arrays; a substrate integrated waveguide radiation slot array comprises a plurality of rows of parallel substrate integrated waveguide radiation slot line arrays; an antenna array surface is divided into four quadrants; the feed networks respectively feed array surfaces of the four quadrants so as to have the condition of realizing a single-pulse function; each quadrant has two sets of feed networks for respectively feeding the single-ridge waveguide slot line arrays and the substrate integrated waveguide slot line arrays; the single-ridge waveguide slot array surface works in an X-band; the substrate integrated waveguide slot array surface works in a Ka-band; arrays of two forms have a common aperture and do not mutually affect; and the problem of electromagnetic wave blocking caused by non-coplanar array surfaces is solved.
Owner:中国兵器工业第二〇六研究所

Method and apparatus for simulating gas hydrate accumulation process under one-dimensional condition

The invention provides a method and a device for simulating the accumulation process of a gas hydrate under a one-dimension condition which mainly simulates the accumulation process of the gas hydrate by forming a hydrate in the inner chamber of an one-dimension high pressure reactor; the inner chamber of the reactor is divided into an upper part, a middle part and a lower part; the middle part is divided into an aquiferous porous medium filling area used for generating the hydrate; the upper part and the lower part are free spaces; the method includes: experiment gases are led into the innerchamber of the reactor from the lower part of the reactor to lead the experiment gases to seep from up to down and pass through the porous medium filling area; the hydrate is generated in the porous medium filling area and the experiment gases not reacted are led out from the upper part of the reactor; the forming speed of the hydrate is detected by detecting the flux change of the gases in the seeping process in the porous medium. The method and device can simulate the two forms of gas migration and water migration formed by the hydrate and can simulate the whole processes of the hydrate from nucleation inducing, gradual forming of the hydrate, the accumulation of the hydrate to trapping.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Measurement and control method based on Ka-S-band relay integrated measurement and control system

The invention provides a measurement and control method based on a Ka-S-band relay integrated measurement and control system. The method comprises two communication links: S-band relay measurement and control and Ka-band relay measurement and control. An integrated association design technology is employed in the two kinds of band relay. Wide beam antennas are employed in the S-band relay measurement and control communication link and to-sky and to-ground array transmitting/receiving is realized, thereby realizing wide beam coverage. Phased array antennas are employed in the Ka-band relay measurement and control communication link, the Ka relay link can be rapidly tracked and held under the condition that platform postures are continuously changed, and to-sky and to-ground array transmitting/receiving is realized, thereby realizing wide beam coverage. According to the method, the problem that the communication rate is relatively low when the S-band relay measurement and control is employed independently, a real-time coverage range is small when the Ka-band relay measurement and control is employed independently, and the efficiency is relatively low when the two forms of relay measurement and control is not related, in aircraft relay measurement and control is solved.
Owner:SHANDONG INST OF AEROSPACE ELECTRONICS TECH

CATIA-based bridge BIM creating method

The invention discloses a CATIA-based bridge BIM creating method. The method comprises the steps of determining assembly and component name and layer division of a bridge BIM, adopting a Mindjet MindManager for drawing a thought induced graph, and exporting a .csv format file in an outline mode; dividing a BOM form into a coding system and a coding list, editing and arranging the two forms through EXCEL, adopting a linear classification method for performing layering division on the bridge BIM, generating assembly and component names and serial numbers, and clearing attribute information needing to be loaded into the assemblies and components; on the basis of a CATIA secondary development interface, importing the BOM form, and automatically generating a structural tree and a component file folder; according to the BOM form, automatically generating PRODUCT attributes and parameter attribute information inside PART; on the basis of the generated structural tree and the file folder, performing CATIA geometric model creating. The method has the advantages that non-geometrical information can be loaded and model files can be automatically generated in batches, creation works of geometrical information and non-geometrical information are separated, and modeling can be performed according to the actual requirement of the certain specific stage.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2

Scalable and Interactive Method of Generating and Modifying Network Configurations to Enforce Compliance with High-Level Requirements

A system and method provides a solution to the problem of applying end-to-end requirements of connectivity, security, reliability and performance to configure a network and ultimately assign network components to the network. All requirements are modeled as constraints and a constraint solver does the resolution Not every constraint to be solved is solved by the model-finder. Instead, we “factor away” subsets of a constraint that can be efficiently solved via a special-purpose constraint solver, such as an SQL / Prolog engine, linear programming system, or even an algorithm, leaving behind a constraint that truly requires the power of model-finding, and that is often efficiently solvable by existing model-finders. Such constraints are compiled into quantifier-free constraints that are Boolean combinations of constraints of two forms x=y and x=c where x, y are variables and c is a constant. Such constraints can be efficiently solved by modern SAT-based model-finders. The system intelligently removes the quantifiers instead of having the model-finder remove the quantifiers. An “unsatisfiability-core” analysis efficiently guides the search for configurations to change to restore consistency.
Owner:PERSPECTA LABS INC

Routing process for precisely controlling appearance of substrate

The invention relates to a routing process for precisely controlling the appearance of a substrate. A to-be-routed whole substrate is provided; the whole substrate comprises at least two forming units; and the routing process comprises the following steps of (S1) measuring the expansion and shrinkage conditions of the overall dimension of the substrate; (S2) routing and positioning: positioning the substrate; (S3) parameter setting: inputting positioning data, inputting data of the substrate and setting machining parameters; (S4) coarse routing slotting: forming inner slots in the inner sidesof the forming units through a coarse routing tool; (S5) fine routing cutting: cutting the inner slots and the peripheries of the forming units through a fine routing tool; (S6) first part confirming:confirming the dimension of the cut first forming unit, confirming that the dimension meets the requirements and entering massive production; and (S7) carrying out QA sampling inspection in the production process. According to the routing process, the problem of scrappage due to the fact that the dimension does not meet the requirements is solved, the appearance quality is improved, the scrap rate is reduced and the requirements of customers on the dimension are met at low cost input and high quality output.
Owner:广东喜珍电路科技有限公司
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