Abstract: Guidewires and methods for transmitting electrical stimuli to a heart and for guiding and supporting the delivery of elongate treatment devices within the heart are disclosed. A guidewire can comprise an elongate body, including first and second elongate conductors, and at least first and second electrodes. A distal end portion of the elongate body can include a preformed bias shape, such as a pigtail-shaped region, on which the first and second electrodes can be located. The preformed bias shape can optionally be non-coplanar relative to an intermediate portion of the elongate body. The first and second elongate conductors can be formed of a single structure or two or more electrically connected structures. The conductors can extend from proximal end portions to distal end portions that electrically connect to the first and second electrodes.

Abstract: Guidewires and methods for transmitting electrical stimuli to a heart and for guiding and supporting the delivery of elongate treatment devices within the heart are disclosed. A guidewire can comprise an elongate body, including first and second elongate conductors, and at least first and second electrodes. A distal end portion of the elongate body can include a preformed bias shape, such as a pigtail-shaped region, on which the first and second electrodes can be located. The preformed bias shape can optionally be non-coplanar relative to an intermediate portion of the elongate body. The first and second elongate conductors can be formed of a single structure or two or more electrically connected structures. The conductors can extend from proximal end portions to distal end portions that electrically connect to the first and second electrodes.

Abstract: A solid glutaraldehyde composition is provided having an increased glass transition temperature. The glutaraldehyde can be used in a method of treating a wellbore or a subterranean formation, by introducing the composition to a wellbore or to an injection line within a wellbore in an amount effective to reduce biodegradation of crude oil, reduce corrosion of metal surfaces from sulfur-reducing bacteria, or to reduce the introduction of bacteria into the formation, reduce microbial contamination of a fluid introduced into the wellbore, or reduce microbial contamination of a pipeline.

Abstract: A solid glutaraldehyde composition is provided which incorporates a quaternary ammonium compound. The glutaraldehyde can be used in a method of treating a wellbore or a subterranean formation, by introducing the composition to a wellbore or to an injection line within a wellbore in an amount effective to reduce biodegradation of crude oil, reduce corrosion of metal surfaces from sulfur-reducing bacteria, or to reduce the introduction of bacteria into the formation, reduce microbial contamination of a fluid introduced into the wellbore, or reduce microbial contamination of a pipeline.

Abstract: A peer-to-peer wireless connection is established between a mobile client computing device and a server computing device, and information is communicated between the mobile client computing device and the server computing device over this connection. The information is sufficient for the server computing device and/or the mobile client computing device to authenticate the mobile client computing device with the server computing device. After the mobile client computing device has been authenticated with the server computing device, a user of the mobile client computing device is permitted to perform management tasks on the server computing device using the mobile client computing device, such as over the peer-to-peer wireless connection. For example, license keys can be moved from the mobile client computing device to the server computing device to upgrade the server computing device, and from the server computing device to the mobile computing device to downgrade the server computing device.

Abstract: Systems, apparatus, and program code, and methods for monitoring the health and other conditions of the valve, are provided. An exemplary system for monitoring the condition of the gate valve includes a logic module configured to perform the operations of receiving sensor data providing an acoustic emission, vibration, and/or stream level signature and determining the level of lubricity, level of friction, level of surface degradation, and leakage rate at a gate-valve seat interface. An exemplary method for monitoring the condition of the gate valve includes receiving sensor data providing an acoustic emission, vibration, and/or stream level signature and determining the level of lubricity, level of friction, level of surface degradation, and leakage rate at a gate-valve seat interface.

Abstract: Imaging data regarding an interior portion of a storage vessel may be obtained from an imaging device (e.g., a digital camera or depth sensor) and interpreted in order to identify an available volume within the storage vessel. Where the imaging data includes an image of an interior of the storage vessel, an area of one or more contiguous spaces of a rear face of the storage vessel may be identified from the image and multiplied by a depth of the storage vessel in order to estimate the available volume. Where the imaging data includes a depth profile of the interior, the depth profile may be processed in order to estimate the available volume. Once an available volume has been estimated, the capacity of the available volume to accommodate one or more additional items may be determined, and information regarding the capacity may be provided to a user.

Abstract: An aircraft stall protection system and method include calculating a first angle of attack and a second angle of attack based on aircraft configuration and environmental conditions, the first angle of attack being greater than the second angle of attack. The system and method limit the actual aircraft angle of attack to the first angle of attack for a predetermined period of time and thereafter the system and method limit the actual aircraft angle of attack to the second angle of attack. The system and method allow the aircraft operator or pilot to extract maximum performance from the aircraft for any given set of flight conditions, without the risk of stalling or remaining in a high drag state for a prolonged period of time. This system and method are suitable for use in conjunction with a stall warning system.

Abstract: Techniques are described for providing a file system interface for use with network-accessible computing resources (e.g., located in a data center). A client computing device of a user may display information regarding at least some such computing resources to the user using a visual representation of a hierarchical file system (e.g., with the computing resources organized hierarchically), and allow standard file system commands to manipulate the computing resources, despite them not actually being part of a file system. Particular combinations of a file system command and a type of computing resource may be mapped to associated operations, which implement actions for computing resources of that type corresponding to functionality of that file system command. In some situations, the computing resources are provided by an online service, such as a configurable network service providing virtual computer networks to clients.

Abstract: Multi-axis pivot assemblies for control sticks and associated systems and methods are disclosed herein. A multi-axis pivot assembly in accordance with an embodiment of the present technology can include, for example, an input shaft, a first axis output shaft coupled to the input shaft, and a second axis output shaft coupled to the input shaft via a series of linkages and pivoting joints. The first and second axis output shafts rotated about corresponding first and second fixed bearing sets to capture a first axis output and a second axis output. The series of linkages are configured to decouple first axis movement of the input shaft from second axis movement of the input shaft such that the second axis output is substantially independent of the first axis output.

Abstract: Disclosed are various implementations for updating information displayed in a user interface for a worker in a fulfillment center. Information changing relative to a previous user interface can be provided in response to location data that indicates the worker's location within a fulfillment center.

Abstract: A user who is currently unauthorized to access a resource sends a request to access the resource. It is determined whether a number of authorized users of the resource who have indicated that the user should be permitted to access the resource satisfies the threshold condition. If the number of authorized users who have indicated that the user should be permitted access satisfies the threshold condition, the user is permitted to access the resource. The threshold condition can be based on replies received responsive to messages sent to the authorized users of the resource asking whether the user should be permitted to access the resource. The threshold condition can be based on public digital keys of the authorized users from the user.

Abstract: Devices, methods and systems are provided for monitoring movement of an object, such as rotation of a blade or other airfoil. One exemplary tracking device includes a first emitter to emit first radiation along a first line of sight, a first detector proximate the first emitter to detect the first radiation, a second emitter to emit second radiation along a second line of sight, and a second detector proximate the second emitter to detect the second radiation.

Abstract: A peer-to-peer wireless connection is established between a mobile client computing device and a server computing device, and information is communicated between the mobile client computing device and the server computing device over this connection. The information is sufficient for the server computing device and/or the mobile client computing device to authenticate the mobile client computing device with the server computing device. After the mobile client computing device has been authenticated with the server computing device, a user of the mobile client computing device is permitted to perform management tasks on the server computing device using the mobile client computing device, such as over the peer-to-peer wireless connection. For example, license keys can be moved from the mobile client computing device to the server computing device to upgrade the server computing device, and from the server computing device to the mobile computing device to downgrade the server computing device.

Abstract: A conferencing system receives information identifying a user and retrieves calendar information specifying scheduled events of the user. The conferencing system selects one of the events and joins the user to the event without the user manually entering information about the event.

Abstract: An aircraft stall protection system and method include calculating a first angle of attack and a second angle of attack based on aircraft configuration and environmental conditions, the first angle of attack being greater than the second angle of attack. The system and method limit the actual aircraft angle of attack to the first angle of attack for a predetermined period of time and thereafter the system and method limit the actual aircraft angle of attack to the second angle of attack. The system and method allow the aircraft operator or pilot to extract maximum performance from the aircraft for any given set of flight conditions, without the risk of stalling or remaining in a high drag state for a prolonged period of time. This system and method are suitable for use in conjunction with a stall warning system.

Abstract: A panel structure having a low-density core that can withstanding loads normal to a first primary surface, and a first facing of high-density sheet material that can extend along the first primary surface. The high-density sheet material can be laminated on the core such that the laminated core and facing cooperatively resist bending loads and loads along the primary surface. The first facing can extend from the first primary surface on a side of the core along a secondary surface, which can be non-parallel to the first primary surface. The first facing can bend along a score line between the first primary surface and the secondary surface.

Abstract: A system and method are disclosed for detecting and correcting data errors. The system analyzes a transmitted data stream and generates a transmitted primary code from the transmitted data stream. The transmitted primary code may be sent in association with the transmitted data stream. The system further analyzes the data stream as received and generates a received primary code from the received data stream. Comparison of the transmitted and received primary codes may be used to detect and correct one bit and generally multiple bit data errors in the received data stream.

Abstract: A method of securing a prosthetic device to tissue includes providing an applicator instrument including a housing, a shaft, surgical fasteners, a firing rod for dispensing the surgical fasteners from the shaft, a trigger, and an energy storing element. The method includes positioning a prosthetic device over tissue, juxtaposing a distal end of the shaft with the prosthetic device, and compressing the trigger for piloting the firing rod toward the distal end of the elongated shaft at a first rate of speed. The method includes preventing the firing rod from moving distally while building up energy in the energy storing element, and further compressing the trigger for releasing the firing rod for distal movement and transferring the built up energy for moving the firing rod toward the distal end of the elongated shaft at a second rate of speed that is greater than the first rate of speed.

Abstract: Imaging data regarding an interior portion of a storage vessel may be obtained from an imaging device (e.g., a digital camera or depth sensor) and interpreted in order to identify an available volume within the storage vessel. Where the imaging data includes an image of an interior of the storage vessel, an area of one or more contiguous spaces of a rear face of the storage vessel may be identified from the image and multiplied by a depth of the storage vessel in order to estimate the available volume. Where the imaging data includes a depth profile of the interior, the depth profile may be processed in order to estimate the available volume. Once an available volume has been estimated, the capacity of the available volume to accommodate one or more additional items may be determined, and information regarding the capacity may be provided to a user.