635results about How to "Difficult to control" patented technology

A method of indexing content for network searching comprises identifying media content signals stored at sites distributed over a distributed computer network; extracting content identifiers from the content signals; using the content identifiers to obtain metadata used to classify the media content signals; and creating a searchable index of the media content signals based on the metadata, wherein users access the searchable index on the distributed computer network to submit a search query for the searchable index to retrieve links to the media content signals.

Various techniques are described to facilitate controlling an unmanned aerial vehicle (UAV) and viewing feedback received from a UAV. A graphical user interface (GUI) is provided that allows a user to view a display window. The display window may indicate structures or portions of structures in which additional image data is desired by highlighting these portions within the display window. Static imagery may be leveraged to provide smooth and consistent feedback transitions. When a delay exists between the time the UAV sends live video data and the time it may be displayed in the GUI, the static images may be shown in the display window initially until the live video data may be displayed. The opacity of structures included in an initial display window may also transition to a greater opacity over time, with the live video eventually being displayed.

The disclosure provides aldehyde-tagged protein carriers that can be covalently and site-specifically bound to drug to provide a drug-containing scaffold. The invention also encompasses methods of production of such drug-containing scaffolds and intermediates, as well as methods of use.

The invention discloses a method for testing tensile modulus of a brittle material, which is characterized by comprising the following steps of: arranging a test sample on a Brazilian split tester; symmetrically applying line load to the test sample in the radial direction of the test sample; measuring the total displacement of center of the test sample in the diameter direction, wherein the direction of the total displacement is vertical to the load applying direction of the test sample; calculating to obtain the tensile modulus Et of the material according to the following formula, wherein Et is the tensile modulus, sigma t is the Brazilian split tensile strength; Pt is the line load, L is the length of the test sample, D is the diameter of the test sample, Mu is the Poisson's ratio, and Delta ut is the total displacement of the center of the test sample in the diameter direction. The method for testing the tensile modulus of the brittle material can guarantee more accurate test result.

PCT No. PCT/JP97/01387 Sec. 371 Date Dec. 11, 1997 Sec. 102(e) Date Dec. 11, 1997 PCT Filed Apr. 22, 1997 PCT Pub. No. WO97/40075 PCT Pub. Date Oct. 30, 1997A catalyst component for polyolefin production catalysts comprising a metallocene compound represented by general formula (1) (symbols have the meanings as described in the specification), polyolefin production catalyst containing the component, and method for producing polyolefin with the catalyst are provided. Use of a catalyst containing the novel metallocene compound as a catalyst component of the invention in polymerization of alpha -olefin, particularly propylene, enables one to prepare high rigid, high melting point isotactic polypropylene useful as an industrial material for automobiles and the like, more specifically isotactic polypropylene having highly controlled stereoregulartity and regioregularity, particularly the one having a high regioregularity that has been difficult to achieve with conventional metallocene catalysts.

An anti-theft system for protecting a vehicle exhaust component (4) is described. The system includes a sensor (1) configured to monitor vibrations associated with a vehicle exhaust system (5)and a controller (2) arranged to monitor a signal from the sensor (1). The controller (2) is configured to generate an alarm event if the signal from the sensor includes characteristics indicative of vibrations associated with an attempted theft of the vehicle exhaust component (4).

An organic EL element which has a good element property and can realize high productivity is provided.

The organic EL element 100 is provided with an element substrate 120 for forming an organic layer including at least a light emitting layer 105 between a pair of opposing electrodes which are provided on the substrate, in which a surface of the above-mentioned element substrate is covered with a sealing layer 110, wherein the above-mentioned sealing layer 110 includes a self-recovery layer 113 which causes volume change in a predetermined environment.

Provided is a polyurethane polymer which is excellent in oil resistance, weatherability, light resistance, heat resistance, hot water resistance, hydrolysis resistance, strength, chlorine resistance, and chemical resistance, and which can be produced simply and economically. The polyurethane polymer is produced by polymerizing at least two components: a vinyl polymer (A) having a mercapto group at each end of the molecular chain produced by a reversible addition-fragmentation chain transfer polymerization method, and an organic polyisocyanate (B). Also provided are polyurethane-based materials containing the polyurethane polymer, and polyurethane elastic fiber.

The invention discloses a process method for cooperatively and continuously processing waste containing iron and/or zinc, lead, copper and tin, and the like and molten steel slag on line, separating and recycling metal such as iron, zinc, lead, copper and tin as well as molten slag. The cooperative processing and recycling method is characterized in that pellets prepared from waste containing iron, zinc, lead, copper, tin and the like, particles, a blocky material containing iron, zinc, lead, copper, tin and the like and high-temperature molten steel slag are added into a reducing, volatilizing and smelting furnace, molten iron, which is obtained by air-blowing, adding of fuels such as coal gangues and flux such as high silicon and high aluminum, high-temperature reducing and volatilizingtreatment, is discharged from an iron outlet of the reducing, volatilizing and smelting furnace; volatilized substances such as zinc and lead and smoke gas are sucked into a dust collector for being collected and utilized; enriched metal such as gold, silver, copper, tin and lead is discharged from a discharge hole in the bottommost part of the reducing, volatilizing and smelting furnace for beingrecycled; and molten slag is discharged through a slag outlet, water slag and the like or the molten slag is returned into a converter for being recycled. Waste containing iron, zinc, lead, copper, tin and the like, molten steel slag and coal gangue waste slag and the like are cooperatively and continuously treated to separate and recycle useful metal, so that remarkable energy-saving environment-friendly social benefits and economic benefits are achieved.

The invention belongs to the technical field of materials, and particularly relates to a preparation method of graphene with nano ferroferric oxide precipitated on surface, which concretely comprises the steps of: firstly, oxidizing natural flake graphite and obtaining graphite oxide; further carrying out ultrasonic stripping on the graphite oxide and forming graphene oxide suspension; then, carrying out reduction reaction on the graphene oxide suspension under the action of strong reducing agent, and obtaining black flocculent flake graphene; and finally, taking hydrogen peroxide as an oxidant, and depositing Fe3O4 on the surface of the graphene in an alkaline solution. The invention realizes the modification of nanoscale Fe3O4 for the surface of the graphene. The obtained modified graphene is not doped with other elements except the Fe element, and can be well dispersed in a high-performance resin matrix, so that the mechanical property, the thermal performance, the electromagnetic performance and the friction property of the resin matrix can be improved, and phenolic resin, bismaleimide, cyanate ester and other products can be updated, or a new application field can be developed..