Abstract: Generally, a vehicle comprising at least one hydrogen releasing element is provided. The vehicle can include at least one hydrogen releasing element coupled to a body of the vehicle. The vehicle can include a hydrogen combustion region positioned adjacent to a predetermined portion of the vehicle body. The vehicle can include at least one ignition element positioned within the hydrogen combustion region that can inflame hydrogen within the hydrogen combustion region. The vehicle can include a housing surrounding the hydrogen combustion region. The housing can form combustion chamber thereby providing additional thrust to the vehicle. In some embodiments, the vehicle is an airborne vehicle.

Abstract: An airborne vehicle made of thermally non-conductive materials and method for thermal conduction in an airborne vehicle are disclosed. The airborne vehicle comprising at least one structural element made of material with high thermal conductivity coefficient embedded in the airborne vehicle body. In some embodiments wherein the thermally conductive structural element is a longitudinal profile with hollow center along it. The method comprising disposing structural element with high thermal conductivity embedded in the airborne vehicle and providing thermal pass with high thermal conductivity from the heat source to the structural element with high thermal conductivity, to allow heat to dissipate through the structural element with high thermal conductivity.

Abstract: A method includes receiving a signal, which includes reflections of multiple pulses from one or more targets (24). A Doppler focusing function, in which the reflections of the multiple pulses from each target accumulate in-phase to produce a respective peak associated with a respective delay and a respective Doppler frequency of the target, is evaluated based on the received signal. Respective delays and Doppler frequencies of the targets are estimated based on the Doppler focusing function.

Abstract: Distributed fiber sensing system including a laser source, a circulator, a detector and an optical fiber, the circulator coupled with the laser source, the detector and the optical fiber, the laser source for generating at least two ultra-narrow linewidth interrogating pulses, the detector having a predetermined detection bandwidth for detecting back-scattered signals, the laser source including an ultra-narrow linewidth laser and a modulator, coupled with the ultra-narrow linewidth laser and the circulator, the modulator generating a plurality of pairs of interrogating pulses having a time delay, a frequency difference between two pulses of the same interrogating pair being less than the predetermined detection bandwidth and a frequency difference between two pulses not of the same interrogating pair being larger than the predetermined detection bandwidth, wherein the optical fiber can be characterized based on beat-notes between back-scattered signals originating from the pair of interrogating pulses detect

Abstract: Systems, methods and apparatus for invoking actions at a second user device from a first user device. A method includes determining that a first user device has an associated second user device; accessing specification data that specifies a set of user device actions that the second user device is configured to perform; receiving command inputs for the first user device; for each command input, determining whether the command input resolves to one of the user device actions; for each command input not determined to resolve any of the user device actions, causing the command input to be processed at the first user device; and for each command input determined to resolve one of the user device actions causing the first user device to display in a user interface a dialog by which a user may either accept or deny invoking the user device action at the second user device.

Abstract: Systems, methods and apparatus for invoking actions at a second user device from a first user device. A method includes determining that a first user device has an associated second user device; accessing specification data that specifies a set of user device actions that the second user device is configured to perform; receiving command inputs for the first user device; for each command input, determining whether the command input resolves to one of the user device actions; for each command input not determined to resolve to any of the user device actions, causing the command input to be processed at the first user device; and for each command input determined to resolve one of the user device actions causing the first user device to display in a user interface a dialog by which a user may either accept or deny invoking the user device action at the second user device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for using location aliases. In some implementations, a query is received, and a user that submitted the query is identified. It can be determined that one or more terms of the query represent an alias for a user-specific geographical location that has not been designated for the identified user. In response, a prompt can be provided to the user to specify a geographical location corresponding to the one or more query terms, data indicating a geographical location is received, and data is stored that indicates that, for the identified user, the one or more terms are an alias for the geographical location. One or more search results responsive to the query are provided, where the alias corresponds to the geographical location input in response to the prompt.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving a first search query from a user device; receiving search results for the first search query provided by a search engine, wherein each of the search results identifies a respective resource; determining from the search results that the first search query relates to a first entity of a first entity type; determining that one or more entities of a second entity type have a predetermined relationship with the first entity; and transmitting information identifying the one or more entities of the second type to the user device as part of a response to the first search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying entities that are related to an entity to which a search query is directed. One of the methods includes receiving a search query, wherein the search query has been determined to relate to a first entity of a first entity type, and wherein one or more entities of a second entity type have a relationship with the first entity; receiving search results for the search query; determining that a count of search results identifying a resource containing a reference to the first entity satisfies a first threshold value; determining that a count of search results identifying a resource having the second entity type as a relevant entity type satisfies a second threshold value; and transmitting information identifying the one or more entities of the second entity type as part of the response to the search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying entities that are related to an entity to which a search query is directed. One of the methods includes receiving a search query, wherein the search query has been determined to relate to a first entity of a first entity type, and wherein one or more entities of a second entity type have a relationship with the first entity; receiving search results for the search query; determining that a count of search results identifying a resource containing a reference to the first entity satisfies a first threshold value; determining that a count of search results identifying a resource having the second entity type as a relevant entity type satisfies a second threshold value; and transmitting information identifying the one or more entities of the second entity type as part of the response to the search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for determining query results in response to queries. One of the methods includes obtaining first query results that are responsive to a first query; determining that the first query results do not satisfy a requirement; obtaining one or more modified queries for the first query; selecting a modified query from the one or more modified queries; obtaining second query results that are responsive to the selected modified query; analyzing the second query results and the first query results; determining to provide one or more second query results as a result of the analyzing; and providing the one or more second query results.

Abstract: A device determines at least one search result that is responsive to a textual representation of a voice query. The at least one search result includes a reference to a first document related to the voice query, a first set of text from a content of the first document, and a second set of text that is responsive to the voice query. The second set of text is in a complete sentence form. The device converts the second set of text into information corresponding to an audible version of the second set of text, and generates a second document that includes the reference to the first document, the first set of text, the second set of text, and the information corresponding to the audible version of the second set of text. The device provides the second document to a client device for presentation on a display.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving a first search query from a user device; receiving search results for the first search query provided by a search engine, wherein each of the search results identifies a respective resource; determining from the search results that the first search query relates to a first entity of a first entity type; determining that one or more entities of a second entity type have a predetermined relationship with the first entity; and transmitting information identifying the one or more entities of the second type to the user device as part of a response to the first search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving a first search query from a user device; receiving search results for the first search query provided by a search engine, wherein each of the search results identifies a respective resource; determining from the search results that the first search query relates to a first entity of a first entity type; determining that one or more entities of a second entity type have a predetermined relationship with the first entity; and transmitting information identifying the one or more entities of the second type to the user device as part of a response to the first search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying entities that are related to an entity to which a search query is directed. One of the methods includes receiving a search query, wherein the search query has been determined to relate to a first entity of a first entity type, and wherein one or more entities of a second entity type have a relationship with the first entity; receiving search results for the search query; determining that a count of search results identifying a resource containing a reference to the first entity satisfies a first threshold value; determining that a count of search results identifying a resource having the second entity type as a relevant entity type satisfies a second threshold value; and transmitting information identifying the one or more entities of the second entity type as part of the response to the search query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying entities that are related to an entity to which a search query is directed. One of the methods includes receiving a search query, wherein the search query has been determined to relate to a first entity of a first entity type, and wherein one or more entities of a second entity type have a relationship with the first entity; receiving search results for the search query; determining that a count of search results identifying a resource containing a reference to the first entity satisfies a first threshold value; determining that a count of search results identifying a resource having the second entity type as a relevant entity type satisfies a second threshold value; and transmitting information identifying the one or more entities of the second entity type as part of the response to the search query.

Abstract: A system determines search hypotheses for a search query, each search hypothesis defining a search type and respectively corresponding to a resource corpus of a type that matches the search type; for each search hypothesis, generate a hypothesis search query based on the search query and the search type and submits the hypothesis search query to a search service to determine a search hypothesis score, and for each search hypothesis having a search hypothesis score meeting a search hypothesis threshold, providing search results for the search operation performed for the hypothesis search query determined for the search hypothesis; and for each search hypothesis not having a search hypothesis score meeting a search hypothesis threshold, not providing search results for the search operation performed for the hypothesis search query determined for the search hypothesis.

Abstract: Systems, methods and apparatus for invoking actions at a second user device from a first user device. A method includes determining that a first user device has an associated second user device; accessing specification data that specifies a set of user device actions that the second user device is configured to perform; receiving command inputs for the first user device; for each command input, determining whether the command input resolves to one of the user device actions; for each command input not determined to resolve to any of the user device actions, causing the command input to be processed at the first user device; and for each command input determined to resolve one of the user device actions causing the first user device to display in a user interface a dialog by which a user may either accept or deny invoking the user device action at the second user device.

Abstract: A method includes receiving a signal, which includes reflections of multiple pulses from one or more targets (24). A Doppler focusing function, in which the reflections of the multiple pulses from each target accumulate in-phase to produce a respective peak associated with a respective delay and a respective Doppler frequency of the target, is evaluated based on the received signal. Respective delays and Doppler frequencies of the targets are estimated based on the Doppler focusing function.

Abstract: The present disclosure relates to the identification of video content. In one aspect, a method includes generating a query based on bibliographic data. The method also includes obtaining a collection of resources responsive to the query, wherein one or more of the resources include text and video content. The method further includes calculating occurrence scores for the resources. A particular occurrence score for a particular resource is based at least in part on the bibliographic data matching text included in the particular resource and the text being associated with video content. The method further includes selecting one or more resources as including video content identified by the bibliographic data using the occurrence scores. The method further includes storing data associating the selected resources with the bibliographic data.