Abstract: A fuel cell system is provided, including an HFR measurement device in electrical communication with a fuel cell stack. The HFR measurement is used online to measure an HFR of the fuel cell stack suitable for calculation of a d(HFR)/d(RH) ratio. A humidity regulator is provided in fluid communication with the fuel cell stack. A controller periodically changes stack operating conditions to perturb an RH of the fuel cell stack, process the HFR response, and compute the d(HFR)/d(RH) ratio. A method for online identification and control of the fuel cell stack humidification is also provided. The d(HFR)/d(RH) ratio is an auxiliary measurement of membrane hydration which is used as a feedback for hydration control.

Abstract: A method of operating an electrochemical conversion assembly is provided. According to the method, an assembly warm-up operation is executed by increasing the temperature TSTACK of the membrane electrode assembly. Next, stoichiometry-based control of the relative humidity (RH) of one of the reactant flowfields is initiated when the temperature TSTACK exceeds a threshold temperature T0. The stoichiometry-based RH control comprises a reduction in the relative humidity from a value RHWET exceeding 100% relative humidity to a value RHDRY less than 100% relative humidity. The relative humidity value RHDRY is sufficiently low to permit reduction of an initial membrane hydration ?WET in the membrane electrode assembly.

Abstract: Systems and methods are provided for acquiring data from an aircraft. The system comprises a sensor device coupled to the aircraft for generating the data, a first wireless communication interface coupled to the sensor device and configured to transmit the data upon receiving a first request, and a portable electronic device comprising a second wireless communication interface. The portable electronic device is configured to transmit the first request to the first wireless communication interface and receive the data from the first wireless communication interface.

Abstract: The switching rectifier and switching inverter on a motor drive unit are modulated to indirectly change the magnitude of current and voltage stored in DC link by controlling the magnetic field of the motor to correct for both power factor lead and power factor lag over a wide range of motor speeds and conditions while maintaining a predetermined motor operating point.

Abstract: A multiple-core processor providing flexible mapping of processor cores to cache banks. In one embodiment, a processor may include a cache including a number of cache banks. The processor may further include a number of processor cores configured to access the cache banks, as well as core/bank mapping logic coupled to the cache banks and processor cores. The core/bank mapping logic may be configurable to map a cache bank select portion of a memory address specified by a given one of the processor cores to any one of the cache banks.

Abstract: Achieving clock timing closure in designing an integrated circuit involves virtually synthesizing a clock network for the integrated circuit design to generate virtual clock buffering in the clock network before a point in the design flow at which the clock network is actually synthesized and committed to a netlist. Timing violations are determined for clock gates generated by the virtual clock buffering. Clock gating transforms are evaluated for the clock gates having the timing violations, based on recalculated clock and data path delays, to incrementally virtually synthesize the clock network. The clock gating transforms that result in the best timing gains are committed to the netlist. The clock network is then actually synthesized for the integrated circuit design, and design changes, due to the actual clock network synthesis, are committed to the netlist.

Abstract: A microelectromechanical systems device having support structures formed of sacrificial material surrounded by a protective material. The microelectromechanical systems device includes a substrate having an electrode formed thereon. Another electrode is separated from the first electrode by a cavity and forms a movable layer, which is supported by support structures formed of a sacrificial material.

Abstract: According to one embodiment, a content data store maintains the one or more content items in accordance with a programmable indexing schemes, with each container in the comprising storage for one or more references to one or more content items. Systems and methods are provided that re-index the references to content items that the content data store is indexing in accordance with one or more container creation schemes for ease of management and navigation.

Abstract: In a method of metering Web usage, a collection program is downloaded from a server to a metered computer in response to a message transmitted from the metered computer to the server, and the collection program is executed on the metered computer in order to collect Web usage history information stored in a history file by a browser running on the metered computer. The collected Web site usage history information is transmitted by the metered computer to the server. The Web site usage history information is stored in the server along with Web site usage history information from other metered computers.

Abstract: Embodiments of a fluid transfer device are disclosed.

Abstract: A method of processing multiple workload using virtualized operating system environments. The creation of a new user in a global operating system may automatically cause the creation of a working partition (WPAR) instance. The user will be associated with the WPAR instance and a virtualized operating system environment will be created from the global operating system within the WPAR instance. Within the WPAR instance, the user may be assigned a root identification which enables the user to have root access privileges to perform operations or processes that may only be performed by a root user. The removal of a user from the system also results in the deletion of the associated WPAR.

Abstract: Methods and systems of leveraging synchronous communication protocols to enable asynchronous application and line of business behaviors. An application platform may be provided and configured to provide a pending state for any synchronous operation. The pending state may indicate that the operation has not been completed yet. For an application which may know how to track an operation that has a pending state, the application may control when the operation enters and exits the pending state. The application may communicate to the application platform to hold off on other operations dependent upon the pending operation when the pending operation is not complete. For an application which does not know how to track an operation that has a pending state, the application platform may ignore the pending state of the operation and proceed to other operations. Accordingly, the synchronous user experience is preserved where a straightforward, down-level user interface and experience is appropriate.

Abstract: A technique and apparatus for reducing the complexity of optimizing the performance of a designed semiconductor circuit is disclosed. This technique of path compaction is used to reduce the time taken for optimization. The path compaction tool is used in design optimization to reduce the optimizer execution time. Compaction helps readability, usability and reduces synthesis and static timing analyzer (STA) runtime. The aim of path compaction is to reduce the number of constraints the optimizer has to go through during the optimization process. Path compaction has three dimensions. The first is to reduce number of “-through” elements in the constraint, thereby reducing the complexity of constraints developed The second is to combine the paths to reduce the number of constraints. The third is to combine the constraints to reduce the number of constraints to be checked and optimized. Path compaction is used when generating timing exception using timing exception tools.

Abstract: Methods, apparatuses and computer programs for making information relating to web services available to applications hosted by a client platform and/or using such information to invoke web services for use by an application hosted by a client platform are disclosed. The information is preferably obtained from a local repository or otherwise from a remote repository via the internet. The information may relate to web services previously used by the applications such as particular invocation instances of those web services. The information may comprise statistical Quality of Service (QoS) information relating to particular invocation instances of web services.

Abstract: A light collection device includes a light guide body and a plurality of spaced-apart slits. The slits are formed by undercuts in the light guide body. Sides of the slits form facets that redirect light impinging on the facets. In some embodiments, the light collection body is attached to a photovoltaic cell. Light impinging on the light collection body is redirected towards the photovoltaic cell by the slits. The photovoltaic cells convert the light into electrical energy.

Abstract: A method and communication device disclosed includes displaying a video on a display, converting voice audio data to textual data by applying voice-to-text conversion, and displaying the textual data as scrolling text displayed along with the video on the display and either above, below or across the video. The method may further include receiving a voice call indication from a network, providing the voice call indication to a user interface where the voice call indication corresponds to an incoming voice call; and receiving a user input for receiving the voice call and displaying the voice call as scrolling text. In another embodiment, a method includes displaying application related data on a display; converting voice audio data to textual data by applying voice-to-text conversion; converting the textual data to a video format; and displaying the textual data as scrolling text over the application related data on said display.

Abstract: A light guide device includes a light guide body and two or more pluralities of spaced-apart slits. The slits are formed by undercuts in the light guide body. Sidewalls of the slits form facets that redirect light impinging on the facets. In some embodiments, the light guide body is attached to a light source. The light source emits light that is injected into the light guide body and the slits redirect the light out of the light guide body and towards a desired target. In some embodiments, the target is a display and a first plurality of slits directs light from the light source across the light guide body and over the face of the display. A second plurality of slits then directs light out of the light guide body and towards the display.

Abstract: A separable modulator architecture is disclosed. The modulator has a mirror suspended from a flexible layer over a cavity. The flexible layer also forms supports and support posts for the mirror. An alternative separable modulator architecture has a mirror suspended over a cavity. The modulator is supported by supports and support posts. The support posts comprise a flexible layer over support post plugs. A bus structure may be formed upon the flexible layer arranged over the support posts.

Abstract: A method and apparatus for associating data with product abstractions is provided. Steps are provided for associating a particular product with a product category, based on a first data set, wherein the first data set includes data that corresponds to an offer to sell the particular product by a particular party and matching the first data set with a product abstraction associated with the product category to which the particular product corresponds.

Abstract: Embodiments of the invention are directed to methods, apparatuses and systems for providing a service, utilizing Unstructured Supplementary Service Data (USSD), to a user in a communications network. According to one example of the invention, a hypertext transfer protocol (HTTP) message is received from an unstructured supplementary service data (USSD) server or gateway. Relevant content is then retrieved from a database upon receiving the HTTP message. A USSD message content is created based on a set of parameters, the USSD message content is sent to the USSD server, and the relevant content may then be provided to a user terminal in a text message.