Abstract: Aspects of the present disclosure relate to hierarchical content organization techniques, which may thus enable improved content indexing and/or retrieval, among other benefits. In examples, a content platform maintains a content hierarchy, where, for example, each category within the content hierarchy has an associated set of categories/subcategories. It will be appreciated that any number of hierarchical levels may be used. Accordingly, a post or other content item may be associated with one or more categories/subcategories (e.g., one or more nodes) of the content hierarchy, thereby facilitating subsequent retrieval of the content (e.g., responsive to a user query and/or to provide to a search platform). Thus, in contrast to discussion boards and other content management systems, the disclosed aspects ensure content is organized when created, thereby improving later retrieval and/or any of a variety of subsequent processing, among other benefits.

Abstract: Systems and methods are provided for generating electronic renderings using feature layers. A set of sample electronic renderings can be generated for a virtual space based on feature data (e.g., including a set of features of the virtual space). Rendering data can be determined based on the set of sample electronic renderings, wherein the rendering data includes a set of feature layers, and wherein each feature layer is associated with at least one feature of the set of features. A rendering request can be received, the rendering request including a subset of features and associated feature parameters selected from the set of features as selected feature data, and an electronic rendering can be generated of the virtual space based on the selected feature data and one or more of the feature layers.

Abstract: A mass port configured to tune a frequency response of an audio reproduction device is disclosed. The mass port includes a head portion and an insertion portion coupled to the head portion. The head portion includes a sealing structure on a rear side. The head portion is configured to attach to a rear plate of a driver at the sealing structure. The insertion portion is configured to be inserted into a speaker port on the rear plate of the driver. The head portion and the insertion portion include an air slot that runs through the head portion and the insertion portion.

Abstract: A mass port configured to tune a frequency response of an audio reproduction device is disclosed. The mass port includes a head portion and an insertion portion coupled to the head portion. The head portion includes a sealing structure on a rear side. The head portion is configured to attach to a rear plate of a driver at the sealing structure. The insertion portion is configured to be inserted into a speaker port on the rear plate of the driver. The head portion and the insertion portion include an air slot that runs through the head portion and the insertion portion.

Abstract: A computer implemented method for configuring multiple products within a defined grouping of user-configurable products including providing a computer-implemented database of user-configurable products at a first computer, each user-configurable product including design parameters distinguishing the user-configurable product from other user-configurable products, each design parameter including a range of values, providing a listing of user-configurable products based on one or, more product configuration selections provided by a user, receiving a selection of a plurality of user-configurable products from the listing of user-configurable products, the selection including identifying a grouping to be associated with the each user-configurable product to create at least two virtual product groups. Each grouping includes at least two user-configurable products.

Abstract: A computer-implemented method includes generating a plurality of playing cards, each playing card having a unique identifying code and one or more attributes; distributing the plurality of playing cards to a plurality of players, each player receiving at least one playing card; receiving electronic information relating to a playing card's unique identifying code from one or more of the players; and maintaining an online data registry relating to each trading card for which electronic information has been received. Maintaining the data registry may include tracking the one or more attributes (e.g., monetary value, strategic value, current owner) associated with each playing card. The data registry may be updated by modifying one or more attributes associated with a playing card in response to receiving information indicating a change in status of the card.

Abstract: The present invention provides for a non-woven fabric composite consisting essentially of a mutually interbonded mixture of crimped isotactic polypropylene fiber segments and uncrimped hard elastic isotactic polypropylene fiber segments. A process to manufacture the non-woven fabric composite and textile goods fabricated from the disclosed non-woven fabric composite are also provided.

Abstract: A low drag ship hull generally includes a side air cavity initiated by wetted bow section, bottom air cavity initiated by wetted bottom nosepiece, wetted stem section that closes a lower portion of the side cavity, wetted bottom tailpiece that closes the bottom cavity, stabilizing fin, and propulsor. The bottom of a catamaran hull cross structure includes bow impact alleviator. Optional flaps in the stabilizing fins, together with optional all-movable canard fins are used for control. Different wetted bow sections and retractable means are used for starting side cavities. A low drag hull may utilize multiple air cavities. A new low drag hull includes a new upper bottom air cavity that is initiated by an upper bottom wetted nosepiece, and closed by an upper bottom tailpiece. Alternative designs include a shortened forward hull spaced ahead of a shortened aft hull, and a hydrofoil-supported trimaran with low drag hulls.

Abstract: The invention relates to the use of gas cavities to reduce frictional drag on underwater surfaces such as hydrofoils, struts, fins, rudders, keels, propeller blades, ship hulls, underwater bodies, and wetted surfaces in general. Each gas-filled cavity is formed behind a discontinuity in the surface that causes the water boundary layer to separate from the surface. Gas is ejected into a region behind the discontinuity to fill the cavity; the gas can be air. If a cavity is open to the atmosphere, then air can typically fill the cavity naturally without air ejection. Cavities can either be closed or open. A low drag hydrofoil may have a closed cavity on one side, and an open cavity on the other side. For closed cavities, the underlying surface can be shaped to minimize cavity closure drag. Various ways to generate cavities, change hydrodynamic forces, and duct gas internally on hydrofoils and struts with cavities are covered.

Abstract: The present invention relates to: an automatically adjusting seat, methods of playing video games by inputting a code that controls at least one aspect of the game, method of packaging cooking ingredients, methods and devices for providing gate and other travel information to passengers, a lid for a container and methods of reducing condensation, an email system for reducing size of user accounts, a toy figure or seat with a magnet, a receptacle with air inlets to prevent vacuum.