摘要:
An in-space spacecraft servicing system (10) includes a servicing spacecraft (22) and a propellant module (24). The servicing spacecraft includes a client servicing system (136), as well as navigation avionics (108) for independent flight operation and a servicing propellant tank (170). The propellant module moves the servicing module from an upper stage drop off location and releases it in proximity to a client spacecraft (16) for a servicing mission. It has a propellant tank (172) with capacity for multiple missions and is used to refill the servicing spacecraft's propellant tanks between missions. Either or both the servicing spacecraft and the propellant module may have navigation avionics. The servicing spacecraft also has a universal docking adaptor (70) for different client spacecraft, and can convert a client spacecraft from non-cooperative to cooperative.
摘要:
A propellant depot (40, 150) includes a utility box (42, 42′) that has space flight equipment. A propellant cartridge adaptor (95) is coupled to the utility box (42, 42′) and to an exchangeable propellant cartridge system (41). The propellant depot (40, 150) also includes a docking adaptor (44) for coupling to an approaching spacecraft (24). A controller (66) controls the transfer of propellant from within the exchangeable propellant cartridge system (41) to the spacecraft (24). A method of providing propellant to a spacecraft in space includes launching an orbital propellant depot (40, 150) into space. The spacecraft is docked to the orbital propellant depot (40, 150) in space. Propellant is transferred to the spacecraft. The spacecraft is separated from the orbital propellant depot (40, 150).
摘要:
An in-space spacecraft servicing system (10) includes a servicing spacecraft (22) and a propellant module (24). The servicing spacecraft includes a client servicing system (136), as well as navigation avionics (108) for independent flight operation and a servicing propellant tank (170). The propellant module moves the servicing module from an upper stage drop off location and releases it in proximity to a client spacecraft (16) for a servicing mission. It has a propellant tank (172) with capacity for multiple missions and is used to refill the servicing spacecraft's propellant tanks between missions. Either or both the servicing spacecraft and the propellant module may have navigation avionics. The servicing spacecraft also has a universal docking adaptor (70) for different client spacecraft, and can convert a client spacecraft from non-cooperative to cooperative.
摘要:
The invention presented here is a method and system for providing rich media content over a computer network. In accordance with the invention, a server on a physical or wireless computer network polls the software, hardware, or appliance of an end user on the network, for the availability of software and/or hardware necessary for the display of rich media content. This polling is transparent to the end user and requires no action on the part of the end user. Based on the client's response, the server sends an appropriately formatted version of the rich media file. The user is not necessarily aware that this transfer is taking place, as it is taking place in the background, while the user is performing other tasks or viewing content other than that which is being transferred. Once the rich media has been transferred in its entirety and stored, or cached, in the local memory of the client, the rich media content is displayed automatically in a designated display area. The user may then be able to manipulate the rich media content without affecting the other content or tasks that were being displayed prior to the display of the rich media content.
摘要:
A beverage product that includes water, a color derived from natural sources, and a compound in an effective amount to inhibit fading of the color derived from natural sources. The compound is an unsaturated acid, and may be selected from the group consisting of maleic acid, maleic anhydride, aconitic acid, mesaconic acid, itaconic acid, and/or fumaric acid. The incorporation of the compound can be particularly useful for inhibiting color fading of the beverage product under thermal stress. The colors derived from natural sources may be an anthocyanin, cyclohexene dione dimers and/or a color derived from the reaction of an iridoid and amino acids. For example, the colors may include purple sweet potato, black carrot, purple carrot, black currant, blueberry, carthamus yellow, and/or gardenia blue. The compound can be effective to prevent color fading even in the presence of ascorbic acid, which promotes the fading of colors derived from natural sources.
摘要:
A method and system to provide a media file appropriate for playback. The system identifies an ability of a computer system to playback media content locally by querying a computer system over a network to assess a local playback capability of the computer system. Next, the system creates the media file in response to the identification of the ability and based on the ability. Finally, the system provides the computer system with the media file based on the ability of the computer system to playback the media content locally.