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Query-based electronic program guide

InactiveUS20050278741A1Facilitate simpleFacilitate complex searchTelevision system detailsGHz frequency transmissionOperating systemElectronic program guide
An electronic program guide (EPG) organizes and presents programming information to the viewer and allows for creation of queries to facilitate both simple and complex searches of the programming information. According to one aspect, the EPG is configured to automatically identify programs that a viewer is likely to prefer. The EPG collects viewing preferences of a viewer and, based upon the these viewing preferences, automatically develops queries for identifying programs that the viewer is likely to want to watch. The EPG further enables multiple viewers to merge their individual queries into one composite query or to run queries in background to periodically check for programs and notify the viewer when a program is identified. Queries are saved in an EPG database in a hierarchic structure with directories and sub-directories to make it easy for a viewer to organize and retrieve queries. Another aspect concerns creating queries for a channel, network name or program name using a 10-key keypad. The viewer enters digits in the number or name, one digit at a time. With each entry, the viewer might intend to enter a number or letter. The EPG is configured to interpret the data as representing all possible choices, including the number and letters associated with the key. For instance, when a viewer depresses the key with number “5,” the EPG interprets that data to mean “5” or “j” or “k” or “1.” The EPG identifies all programs, channels, and networks which begin with the number or letters. As the viewer continues to enter data, the list of programs, channel, and networks dynamically narrows so that after a few button presses, the viewer is presented with a short list of possible choices.
Owner:ROVI TECH CORP

Positioning spinning method of embedded system

The invention relates to a method for positioning yarn by an embedded system, belonging to the technical field of textile processing. The method comprises the technical proposal that: on a drafting mechanism of a ring spinning frame, two chopped fiber rough yarns unreeled from a rough yarn bobbin enter a drafting zone respectively in parallel to be drafted by yarn guiding horns; two continuous yarns are fed from the rear end of a front roller, and join with the two crude yarn strands respectively at a front jaw; the two drafted crude yarn strands and the two continuous yarns are output from the front jaw, enter a twisting triangular zone to be twisted, and are wound on a spun yarn bobbin into yarn; according to different relative positions of the two crude yarn strands and the two continuous yarns, yarns with various structures can be formed. The method can realize that polycomponent yarns with a core-spun structure, a fasciated structure and a folded yarn like structure can be spinned on the ring spinning frame; the yarn structure can be accurately selected and determined and is closer, and yarns has more excellent hairiness, brute force and evenness; and spinning of special fiber yarns on the traditional spinning equipment can be realized so as to enlarge the range of spinning materials.
Owner:WUHAN TEXTILE UNIV +2

Integrated pin tool for friction stir welding and composite method of resistance-friction stir welding thereof

The invention discloses an integrated pin tool used for friction stir welding and a composite method of resistance-friction stir welding thereof. The pin tool comprises a pin tool body arranged on a friction welder and a tool pin arranged at the lower part of the tool pin body which is connected with the welder in a clamping and insulating manner; the pin tool also comprises a forced cooling system, a current carrying system, a gas shielding system, a temperature sensing and detecting system, a sealing and insulation system, an inner shaft shoulder and the tool pin, and is an integrated pin tool which has the functions of gas shielding, forced circulation cooling of internal liquid medium, automatic temperature sensing and detection, tool pin changing and composite non-keyhole resistance-friction stir welding. The invention overcomes the difficulty of friction stir welding of the high melting point metal and meets the harsh technical requirements of the friction stir welding of the low melting point metal, improves the quality of welding joints, prolongs the service life of the pin tool and realizes the friction stir welding of high melting point metal and low melting point light alloy, with low cost, high efficiency and excellent quality.
Owner:CHONGQING UNIV

Orientation electro-spinning nanometer fiber spinning method and device thereof

InactiveCN103132194AHigh degree of axial orientationSuppress spinning instabilityDrafting machinesFilament/thread formingBobbinEngineering
The invention discloses an orientation electro-spinning nanometer fiber spinning method and a device thereof. A metal shower nozzle which exerts positive and negative high pressure is adopted to spin two strands of nanometer fibers with opposite charges, an electric field line of a spinning electric field, relative to a common spinning electric field, is straight, stability of spinning is effectively restrained, and the spinning nanometer fibers are straight. Two strands of the fibers surround the yarn tail and form a cone-shaped twisting trigonum on the upper portion of a metal twisting machine, and enable the nanometer fibers to be further oriented and twisted to form yarn through electric field force, tractive force of the yarn and acting force of the metal twisting force. The spinning nanometer fiber yarn is conducted heat shaping through a heat processing device under certain tensile force, degree of orientation of the nanometer fibers along the axial direction of the yarn, breaking force and yarn levelness are further improved, and the yarn after shaped is collected by a winding bobbin. The device can achieve the aim that orientation nanometer fiber yarn can be continuously prepared, is simple in device, convenient to operate, and good in resultant yarn continuity, yarn breaking strength and yarn levelness, and not only can spin pure nanometer fiber yarn, but also can spin nanometer fibers / filament core composite yarn. The orientation nanometer fiber spinning method and the device thereof have important application value in the fields, such as a biomedical field and a sensor field.
Owner:杨恩龙 +1

Micro-alloying steel for oil gas transport seamless pipeline and its preparation method

The invention discloses micro-alloying seamless pipeline steel and process for preparation. According to weight percentage, the range of the chemical components of the invention includes that C holds 0.08% to 0.20%, Si is equal to or less than 0.04%, Mn takes 0.60% to 1. 50%, S is equal to or less than 0.015%, P is equal to or less than 0.025%, Al is equal to or less than 0.04%, Ti is equal to or less than 0.04%, H is equal to or less than 2.5*10-4%, O is equal to or less than 25*10-4%, the rest is Fe and unavoidable foreign matters. The process for preparation comprises technique steps, including smelting, refining, continuous casting, hot rolling and slow cooling. Round steel with the size of phi 70 to 150 millimeters can be produced by the process for preparation. The seamless pipeline steel of the invention has perfect anti-sulphide stress corrosion (SSC resistance) capability and anti-HIC property. The pipeline steel which can substitute for welding pipe can be utilized in the filed of oil pipeline and the like, and the invention increases the reliability of material and adaptability of variety, in particular being adaptable for the low submarine temperature and corrosion-resistant environment and for manufacture of thick-walled tubes.
Owner:LAIWU IRON & STEEL GRP

Detecting vehicle for tunnel

The invention discloses a detecting vehicle for a tunnel, which comprises the detecting vehicle and a propelling system, a braking system, an image pick-up system, an image pick-up system support device, a travel measuring system, an infrared triggering device, a computer and a power supply system which are mounted on the detecting vehicle. The propelling system supplies power for the detecting vehicle and controls the detecting vehicle to run; the braking system supplies a braking force for the detecting vehicle and controls the detecting vehicle to stop running; the image pick-up system support device is used for mounting and supporting the image pick-up system; the appearance condition of the tunnel is obtained through taking photos by using the image pick-up system; the travel measuring system is used for measuring a traveling distance of the detecting vehicle; the infrared triggering device is used for triggering the computer and the image pick-up system to work; the computer receives the information acquired by the travel measuring system and the image pick-up system and stores the received information; and the power supply system supplies electric power for the detecting vehicle. Compared with the traditional manual detection, the detecting vehicle is timesaving and laborsaving and has high reliability; and in addition, detecting results before and after can be contrastively analyzed.
Owner:TONGJI UNIV

Tourism request-answer system answer abstracting method based on ontology reasoning

The invention relates to an answer extraction method for a tourism question and answer system based on ontology reasoning, which belongs to the field of artificial intelligence. The answer extraction method for the tourism question and answer system based on ontology reasoning is characterized in that: firstly, semantic rules in the field are defined, an artificial ontology knowledge base is constructed, and question sentences of users are analyzed; secondly, answer extraction is performed by combing semantic rule-based reasoning and information retrieval, instead of simple matching; and thirdly, corresponding answer extraction algorithms are designed according to different question sentence types. The invention provides the answer extraction method for the tourism question and answer system based on ontology reasoning, which introduces the ontology concept into construction of the knowledge base of the question and answer system, uses an OWL (Ontology Web Language) ontology descriptive language to clearly and definitely represent concepts, attributes and relations in the field of tourism, and more effectively organizes knowledge. In an open test, the precision of answers of the question and answer system based on ontology reasoning to 1346 natural language questions of the users reaches 81.35 percent, and the recall rate reaches 90.49 percent.
Owner:KUNMING UNIV OF SCI & TECH
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