Abstract: Systems and methods are described for securely distributing metadata using a block chain. The system generates a block for a distributed blockchain ledger such that the block includes an encrypted metadata item of a media asset. The system, at a first time, transmits the block for storage in the distributed blockchain ledger such that a copy of the distributed blockchain ledger is stored by the first computing device and a second computing device. The system generates a smart contract that includes a decryption key for the encrypted metadata item and an identifier of the second computing device. The system transmits the smart contract for storage in the distributed blockchain ledger. The smart contract is configured to be automatically executed at the execution time that is later than the first time, to provide the second computing device with the decryption key for the encrypted metadata item.

Abstract: A battery component includes a header body and a frame secured to the header body. The frame includes an electromagnetic shield portion. The electromagnetic shield portion defines at least one electrical connection port. The electrical connection port is configured to receive an electrically conductive object. The electromagnetic shield portion is configured to dissipate electromagnetic radiation from the electrically conductive object.

Abstract: A battery pack system includes first and second battery arrays of a traction battery pack, and a thermal barrier assembly disposed at least partially between the first and second battery arrays. The thermal barrier assembly is configured to block thermal energy movement from the first battery array to the second battery array, and from the second battery array to the first battery array. The system further includes a busbar interfacing directly with a portion of the thermal barrier assembly.

Abstract: An LDPC parity check matrix includes a systematic portion having a plurality of systematic elements and a parity portion having a plurality of parity elements. The value of each systematic element determines a cyclic shift to be applied to rows of an identity submatrix corresponding to that element. The value of each parity element determines a cyclic shift to be applied to rows of an identity submatrix corresponding to that element. The weights of two or more columns of the parity portion are the same.

Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core. Spacing between adjacent panels may be smaller than a thickness of the panels.

Abstract: A visibly transparent luminescent solar concentrator (LSC) is disclosed. The LSC includes a transparent substrate having at least one edge surface. A dye layer is coupled to the substrate, the dye layer having a peak absorption wavelength outside the visible band, the dye layer being configured to re-emit light at a peak emission wavelength outside the visible band, at least a portion of the re-emitted light being waveguided to the edge surface of the substrate. A photovoltaic device is coupled to the edge surface of the transparent substrate, the photovoltaic device being configured to absorb light at the peak emission wavelength and generate electrical energy.

Abstract: A head-end equipment associated with a communication system configured to interface with an interference group (IG) composed of two or more modems is disclosed. The head-end equipment comprises a memory configured to store a plurality of instructions; and one or more processors configured to retrieve the plurality of instructions from the memory. In some embodiments, the one or more processors, upon execution of the plurality of instructions from the memory, is configured to generate an advanced warning signal to be provided to one or more modems associated with the IG. In some embodiments, the advanced warning signal comprises an information that a select modem, different from the one or more modems, in the IG will be initiating an upstream communication in a select frequency band, as well as information on a start time and a duration of the upstream communication.

Abstract: A shelter system is shown and described. A hub for a shelter system is shown and described. A frame for a shelter system is shown and described. In one embodiment, the shelter system includes a frame, a cover and a hub. The frame may be collapsible. The cover is configured to fit with the frame. The hub may include a receiver slot, a receiver sleeve and an attachment projection. The result is a shelter system with reduced set up time, effort and requirements and improved strength and ease of use. The inventions may also be considered a shelter kit and/or a shelter and hub method.

Abstract: Systems and methods for replacing original media bookmarks of at least a portion of a digital media file with replacement bookmarks is described. A media fingerprint engine detects the location of the original fingerprints associated with the portion of the digital media file and a region analysis algorithm characterizes regions of media file spanning the location of the original bookmarks by data class types. The replacement bookmarks are associated with the data class types and are overwritten or otherwise are substituted for the original bookmarks. The replacement bookmarks then are subjected to a fingerprint matching algorithm that incorporates media timeline and media related metadata.

Abstract: Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and either a supported chromium (VI) catalyst or a supported chromium (II) catalyst are contacted, optionally with UV-visible light irradiation, followed by exposure to an oxidizing atmosphere and then hydrolysis to form a reaction product containing the alcohol compound and/or the carbonyl compound. The presence of oxygen significant increases the amount of alcohol/carbonyl product formed, as well as the formation of oxygenated dimers and trimers of certain hydrocarbon reactants.

Abstract: In some implementations, a server may receive, from a user device, one or more credentials associated with a user. Accordingly, the server may transmit, to the user device, instructions for generating a user interface including a plurality of visual components based on authenticating the user with the one or more credentials. The server may detect, during a first interval, a lack of interaction with the user interface. Accordingly, the server may remove one of the plurality of visual components from the user interface based on the lack of interaction. Additionally, the server may detect, during a second interval, one or more interactions with the user interface and may update a similarity score associated with the user based on properties associated with the one or more interactions. Accordingly, the server may restore the visual component to the user interface based on the updated similarity score satisfying a similarity threshold.

Abstract: A system can include a foundation structure and a sensor. The foundation structure can have a plurality of deck panels configured to support a mattress. The plurality of deck panels can include a head panel. The plurality of deck panels can have a head, a foot, a first side, and a second side, a first edge along the head, a second edge along the foot opposite of the first edge, a third edge along the first side, and a fourth edge along the second side opposite the third edge. The sensor can be configured to detect a sound indicative of a snore. The sensor can be positioned along the third edge or fourth edge of the head panel.

Abstract: A computing system may generate a first set of importance metrics (e.g., scores or values) for a model. The importance metrics may be generated using an explainable artificial intelligence technique, and an individual importance metric may indicate how influential a corresponding feature is for a decision made by a model. The computing system may determine an important feature and create a modified dataset by removing the important feature from the dataset. The computing system may train the model on the modified dataset and evaluate the performance of the model to determine the effect of removing the feature (e.g., which may indicate how important the feature is to output generated by the model). This process may be repeated for additional features and additional performance metrics may be obtained.

Abstract: Aspects of the disclosure relate to machine learning based analysis of electronic communications. A computing platform may monitor receipt of a potentially unacceptable electronic communication by a user. Then, the computing platform may extract one or more attributes of the potentially unacceptable electronic communication. The computing platform may then perform, based on the one or more attributes, textual analysis of the potentially unacceptable electronic communication. Subsequently, the computing platform may retrieve one or more rules applicable to the potentially unacceptable electronic communication. Then, the computing platform may determine, based on the textual analysis and the one or more rules, and based on a repository of previously identified unacceptable content, whether the potentially unacceptable electronic communication is unacceptable.

Abstract: Example embodiments provide fuel cell humidifiers. An example humidifier comprises a stack of unit cells. Each of the unit cells may comprise a separator having a perimeter frame and first and second major faces, a first membrane sheet bonded to the perimeter frame on the first major face of the separator and a second membrane sheet bonded to the perimeter frame on the second major face of the separator. The perimeter frame and the first and second membrane sheets may define a cavity in an interior of the perimeter frame. Opposed frame ends of the perimeter frame may be apertured to allow a first flow to flow through the cavity in a first direction. The separator may include first and second ridges that extend across first and second frame ends.

Abstract: Systems and methods for expediting math-based currency (“MBC”) transactions. One method includes receiving a request for a pending MBC transaction, the request include an MBC address of a first party, an MBC address of a second party, and an amount of MBC to be transferred and determining a balance of MBC associated with the MBC address of the first party based on accessing a listing of address balances. Further the method includes in response to determining a threshold likelihood of success of confirming the pending MBC transaction, generating and formatting a guarantee identifier and embedding a copy of the guarantee identifier in a field of the pending MBC transaction. Further the method includes transmitting the guarantee identifier and transferring the amount of MBC from the MBC address of the first party to the MBC address of the second party based on verifying the pending MBC transaction.

Abstract: A computer-implemented method is provided that includes obtaining a first secret and a first public key, and obtaining a second secret a second public key. The method may also include authenticating the first public key of the first vehicle based on a first private key associated with the first vehicle, and authenticating the second public key of the second vehicle based on a second private key associated with the second vehicle. The method may also include preventing a man-in-the-middle attack, by securing at least one of a first vehicle-to-central office communication, a central office-to-first vehicle communication, or a first vehicle-to-second vehicle, wherein the first vehicle-to-central office communication and the central office-to-first vehicle communication are authenticated based on a determined private key associated with a respective first vehicle on-board computer, and sending a message, with the central office server, to a vehicle associated with a conditional movement authority.

Abstract: Supported chromium catalysts with an average valence less than +6 and having a hydrocarbon-containing or halogenated hydrocarbon-containing ligand attached to at least one bonding site on the chromium are disclosed, as well as ethylene-based polymers with terminal alkane, aromatic, or halogenated hydrocarbon chain ends. Another ethylene polymer characterized by at least 2 wt. % of the polymer having a molecular weight greater than 1,000,000 g/mol and at least 1.5 wt. % of the polymer having a molecular weight less than 1000 g/mol is provided, as well as an ethylene homopolymer with at least 3.5 methyl short chain branches and less than 0.6 butyl short chain branches per 1000 total carbon atoms.

Abstract: A system and method include one or more processors and a communication device. The one or more processors are configured to receive sensor signals output by an observer device that monitors a route area. The one or more processors analyze the sensor signals to determine a distance of a vehicle within the route area from the observer device, and determine a vehicle location of the vehicle based on the distance and a predetermined location of the observer device. The communication device is configured to communicate the vehicle location to at least one of the vehicle or a remote control device that is off-board the vehicle.