Abstract: A fuel cell system has a fuel cell stack including a plurality of fuel cells and an anode injector system, and a controller programmed. The controller, responsive to an amplitude of cyclic changes in voltage of at least some of the fuel cells exceeding a threshold, a frequency of the cyclic changes being within a predetermined range of a frequency associated with the anode injector system, and the voltage being less than a predetermined value, disables the fuel cell stack.

Abstract: Systems and methods of managing the voltage of fuel cells during no-load or low load events are disclosed. The systems may employ one or more valves such as an inlet and outlet valve for metering the fuel (e.g., hydrogen) and/or oxidant (e.g., oxygen) provided to the fuel cell. The voltage or voltage rise may be limited by starving the fuel cell of, for example, oxygen. A controller may be employed for controlling the one or more valves during a no-load or low load event such as start-up, idling, or stopping.

Abstract: A machine forms a whip from a length of cable. The machine includes a clamping assembly, a notching assembly, and a cutting assembly. The clamping assembly includes a pad which can be move into and out of a cable travel space. The notching assembly includes a notching saw which cuts an outer jacket of the cable in a direction substantially parallel to the longitudinal axis. Movement of the pad also causes movement of the notching saw to move into the cable travel space or into a raised position. The cutting assembly includes a cutting tool which transversely cuts the conductors of the cable.

Abstract: A vehicular accessory adapter attaches a vehicular accessory to a front vehicular mount of a vehicle, and includes a front connector having a main body, a first and second front connector openings, and a front connector flange having a front connector attachment structure to which an accessory can attach; and first and second attachment elements to secure the front connector to the front vehicular mount. The adapter can optionally include a spacer configured to position between the front vehicular mount and the front connector. The adapter can further optionally include a rear connector having a base a base opening and a rear connector flange to which an accessory can attach.

Abstract: A system and method for cloud management of user interactions on a client device comprising: initiating, in response to an initiation request of a client application, processing of a workflow configuration with an initial session state, wherein the workflow is a data model of a graph of nodes connected with directed edges, where the nodes include a set of node types that includes at least a pane node; iteratively processing the workflow configuration, initially using the initial session state, and thereby generating rendered panes for use in a user interaction flow of a client application, which comprises: following a next edge of the workflow configuration to determine a next workflow node, processing the next workflow node, which comprises, when the next workflow node is a pane node, rendering the pane node into a rendered pane, and sending the rendered panes to the client device.

Abstract: A provider network hosting multiple network-based services that implement different resources for a client may provide automated management of resource attributes across the multiple network-based services. A client may send a request to a resource attribute service implemented at the provider network to add a resource attribute to different resources implemented among different network-based services that satisfy resource metadata selection criteria. In response to receiving the request, resource metadata maintained for the different resources implemented among the different network-based resources, which may include one or more previously applied resource attributes, may be evaluated to identify those resources that satisfy the resource metadata selection criteria. For those resources that satisfy the resource metadata selection criteria, the resource attribute may be added to the resource metadata maintained for the different resources.

Abstract: Systems, methods, and apparatuses for location-based automated authentication are disclosed. A system comprises a mobile device, a sensor and a backend platform. The sensor and the backend platform are in network communication. The mobile device is operable to continuously transmit Bluetooth Low Energy (BLE) signals comprising encrypted transitory identifiers. The sensor is operable to receive a BLE signal from the mobile device when the mobile device is within a predetermined range, and communicate over a network connection the encrypted transitory identifier comprised in the BLE signal to the backend platform. The backend platform is operable to extract a unique identifier and a changing encrypted identifier from the received encrypted transitory identifier, generate a changing encrypted identifier, and validate a user identification by comparing the generated changing encrypted identifier and the extracted changing encrypted identifier.

Abstract: A vehicle includes a fuel cell, an inlet valve, a purge valve, and a controller. The fuel cell has an anode side configured to receive hydrogen. The inlet valve is configured to open to deliver the hydrogen to the anode side. The purge valve is configured to open to purge water and nitrogen from the anode side. The controller is programmed to, operate the inlet valve to inject hydrogen into the anode side via opening the inlet valve followed by closing the inlet valve. The controller is further programmed to, in response to a concentration of the hydrogen in the anode side being less than threshold, open the purge valve to purge water and nitrogen from the anode side.

Abstract: A request to add tags (e.g., labels, key-value pairs, or metadata) to resources can be digitally signed by the entity making the request, such that the source can be verified and an authorization determination made for each tag. For a request involving multiple services (or entities) that can each add tags, any tag added by a service can be included in the request and digitally signed by that service. Each service processing the request can also digitally sign the request before forwarding, so that each service signs a version of the request, which includes elements signed by other services earlier in the request chain. When the request is received to a tagging service, the service ensures that every tag was digitally signed by the appropriate authorized entity or service, and validates the signatures to ensure that no data was modified or omitted, before adding the tags to the designated resource(s).

Abstract: An optical system and, specifically an HMD, is disclosed for increasing brightness efficiency of light transmitted from a display. By including one polarization selective mirror between a half mirror and a display and another polarization selective mirror between the half mirror and a lens, brightness efficiency is increased without a substantial increase in thickness.

Abstract: Methods, systems, and media for navigating through content are provided. In some embodiments, the method comprises: receiving a first plurality of interactive stream items; causing the first plurality of interactive stream items to be presented in a first presentation mode; receiving a first user selection of an interactive stream item from at least a portion of the first plurality of interactive stream items; continuing to receive the stream of content including a second plurality of interactive stream items; determining a second presentation mode based at least in part on a content type associated with the second plurality of interactive stream items; causing the second plurality of interactive stream items to be presented in a second presentation mode; receiving a second user selection indicating that the interactive stream item is no longer selected; and causing the second plurality of interactive stream items to be presented in the first presentation mode.

Abstract: Disclosed are methods for forming and adhering an entrained polymer structure to a substrate. The methods include providing a substrate configured to receive application of a molten entrained polymer. A 3 A molecular sieve entrained polymer in molten form is applied in a predetermined shape, to a surface of the substrate, to form a solidified entrained polymer structure on the substrate. The entrained polymer includes a monolithic material formed of at least a base polymer and 3 A molecular sieve. The surface of the substrate is compatible with the molten entrained polymer so as to thermally bond with it. In this way, the entrained polymer bonds to the substrate and solidifies upon sufficient cooling of the entrained polymer.

Abstract: A system for placing a real-time interactive advertisement on, inside, or in the general vicinity of a moving vehicle, during a live feed, wherein a user has the capability to pause and then click on the provided HTML hyperlinks with the goal of a user learning more about an advertisement.

Abstract: A control device according to some embodiments of the disclosure includes one or more motors directed by the control device to form whip(s) from a length of a cable by causing the cutting of the cable in accordance with specifications based at least in part on whip information. An interface communicates the whip information between the control device and a user device.

Abstract: Disclosed are antimicrobial releasing agents, methods of preparing the antimicrobial releasing agents, and entrained polymers containing antimicrobial releasing agents. The antimicrobial releasing agent is prepared with a carrier having a pH below 3.5. The carrier is optionally polysulfonic acid, phyllosilicate, or others as disclosed. The antimicrobial releasing agent further includes an active compound such as a metal chlorite, and a trigger. Optionally, the antimicrobial releasing agent may be compounded into entrained polymers that release ClO2 in gas form.

Abstract: An optical system and, specifically an HMD, is disclosed for increasing brightness efficiency of light transmitted from a display. By including one polarization selective mirror between a half mirror and a display and another polarization selective mirror between the half mirror and a lens, brightness efficiency is increased without a substantial increase in thickness.

Abstract: Ocean-based gear equipped with Global Positioning System (GPS) shares position to either single or multiple users. Position data from an ocean-based device are sent either to a cloud-hosted database or vessel transceiver, then displayed on either a mobile app via multiple login accounts, a vessel-mounted GPS plotter that is capable of sharing data over the internet, or a satellite-connected mobile device capable of receiving and displaying Short Message Service (SMS) messages or emails. The Vessel Transceiver device is designed to share data from gear to vessel via radio frequency, as well as vessel to vessel via satellite network, without internet connectivity. Position data are provided to either one user or multiple users on the ocean or on land via various communication arrangements.

Abstract: A wide field of view display device employs curved optical components for enhanced performance with a compact arrangement. A wide field of view display includes a curved display device; a first curved lens having a display side and an exit side, wherein the display side is facing the curved display device; a first plurality of Fresnel facets disposed on the display side of the first curved lens; a second curved lens having a display side and an exit side, wherein the display side is facing the exit side of the first curved lens; and a second plurality of Fresnel facets disposed on the display side of the second curved lens, wherein the first plurality of Fresnel facets is configured to focus light from the curved display device on the second plurality of Fresnel facets, and wherein the second plurality of Fresnel facets is configured to focus light from the first plurality of Fresnel facets on a central image point.

Abstract: A customer of a policy management service may use an interface with a configuration and management service to interact with policies that may be applicable to the customer's one or more resources. The customer may create and/or modify the policies and the configuration and management service may notify one or more other entities of the created and/or modified policies. The one or more other entities may be operated by user authorized to approve the created and/or modified policies. Interactions with the configuration and management service may be the same as the interactions with the policy management service.

Abstract: In implementations of systems for generating layouts of text objects, a computing device implements a layout system to receive input data describing a sequence of text and the layout system represents the sequence of the text as a number of text objects. A candidate layout for the text objects is identified from layout data describing a plurality of layouts, the candidate layout identified at least partially based on the number of the text objects. The layout system generates a binary tree having leaf nodes and at least one parent node representing the candidate layout. An arrangement of the text objects in the candidate layout is generated for display in a user interface based on the binary tree.