Abstract: A method to enable travel on a waterway. Here, a river run request is received from a user device. The river run request is associated with travel on a waterway and includes a user's desired time, put-in location, and take-out location. The user device includes a user interface. A river section positioned between the put-in location and the take-out location is determined. A velocity estimate associated with the river section is determined. A mileage for the river run request is determined using the desired time and the velocity estimate. A time of float is determined using the mileage and the velocity estimate. One or more of the mileage and the time of float is transmitted to the user interface for conveyance thereon. A slope between the put-in location and the take-out location is determined. The velocity estimate is determined using a hydraulic radius, the slope, and a roughness factor.

Abstract: The generation of electronic notifications relating to ocean waves. Embodiments include frameworks and methodologies configured to enable real-time location-specific determination of recreationally relevant wave characteristic data, including (but not limited to) generation and delivery of location-specific ocean wave notifications. Embodiments include, by way of example, technology for providing real-time location-specific determination of recreationally relevant wave characteristic data, portable and/or wearable devices configured to deliver notifications in respect of approaching waves, wave monitoring devices and frameworks configured to enable generation of alert notifications for surfers, rock fishers and other recreational users, and generation and delivery of location-specific ocean wave data, including visual data for event broadcasts.

Abstract: An optical sighting assembly including an improved scope body and detachable accessories is presented. The accessories can be magnetically attachable to the scope body and can include a lens cartridge, a light pack, power pack and/or an alignment ring. The lens cartridge can be keyed to be installed at a predetermined rotational orientation, and the lens cartridge can hold a small diameter lens. Lenses can include a fluorescent aiming point that can fluoresce due to ambient light and/or when illuminated by an LED. The light pack can include the LED, a power source, and a control interface for adjusting light output. Alternatively, the LED can be integrated into the scope body, and a battery pack can include a power source and a control interface for the LED.

Abstract: An electronic device according to various embodiments of the present invention comprises: a housing; a user interface; a first gas sensor disposed to sense gas outside the housing; a second gas sensor disposed to sense gas outside the housing and spaced apart from the first gas sensor, the second gas sensor being of the same type as the first gas sensor; a processor electrically connected to the use interface, the first gas sensor, and the second gas sensor; and a memory electrically connected to the processor, wherein the memory may store instructions, that when executed, cause the processor to: monitor the gas outside the housing using the first gas sensor to acquire first data; monitor the gas outside the housing using the second gas sensor to acquire second data; compare the first data and the second data; and provide, via the user interface, information associated with at least one of the gas, the first gas sensor and the second gas sensor, at least in part, on the basis of the comparison result.

Abstract: Systems and methods for a mobile electronic system that gathers and analyzes odors, airborne chemicals and/or compounds. A signature or representation of the odors, airborne chemicals and/or compounds can be generated. Extrinsic data associated with the odors, airborne chemicals and/or compounds or capturing the odors, airborne chemicals and/or compounds can be identified. A model can be generated based on the representation and the extrinsic data. Filters can be generated based on the extrinsic data. The model can be searched for candidate matches, solutions, or other results based on the representation and the filters. Results can be generated based on the search and candidate matches.

Abstract: Systems and methods for a mobile electronic system that gathers and analyzes odors, airborne chemicals and/or compounds. A signature or representation of the odors, airborne chemicals and/or compounds can be generated. Extrinsic data associated with the odors, airborne chemicals and/or compounds or capturing the odors, airborne chemicals and/or compounds can be identified. A model can be generated based on the representation and the extrinsic data. Filters can be generated based on the extrinsic data. The model can be searched for candidate matches, solutions, or other results based on the representation and the filters. Results can be generated based on the search and candidate matches.

Abstract: A ship's speed meter for measuring a speed relative to the water of a ship 10, the ship's speed meter including a wave transmitter 1 for emitting a sound wave toward a sea bottom 20, a wave receiver 2 for detecting a plurality of reflected waves, which are reflected waves of the sound wave having been emitted from the wave transmitter 1, reflected by a plurality of reflecting objects 30 positioned at different water depths, and an arithmetic processing unit 4 for calculating a ship's speed relative to the water of the ship 10 based on a frequency difference of the sound wave and the reflected wave.

Abstract: In some embodiments, vehicle-based natural gas leak detection methods include assembling a collection of measured concentration peaks originating from a common natural gas leak according to wind direction, wind variability and inter-peak distance data, and selecting from the collection a subset of one or more representative peaks for display. Assigning peaks to a collection may be performed according to a peak overlap condition dependent upon a scaling (overlap) factor which scales the spatial reach of a peak, and according to a wind condition which determines whether a downwind event points toward an upwind event. The scaling factor may depend on wind variability and on an orientation of an inter-peak vector relative to a representative wind direction. Peak filtering is particularly useful in urban environments, where buildings channel gas plumes and one leak may lead to sequential detections of multiple concentration peaks along a path.

Abstract: A method and system for detecting wind patterns in association with a cargo package airdrop. The method includes dispersing media into the atmosphere, tracking the dispersed media, wherein tracking includes at least one of using Sodar, Lidar, Radar, and optical imaging, determining a wind pattern proximate an airdrop landing using the tracked media, and determining an airdrop location position using the determined wind pattern.

Abstract: When a flow of a liquid body around a measuring object is visualized, a first liquid body as a tracer is supplied from a nozzle hole into a flow field of a second liquid body, and a laser beam having a wavelength optically absorbed by the first liquid body is irradiated in a manner such that the laser beam traverse across the flow field. At this point, the irradiation position of the laser beam is controlled in such a manner that the flow field is scanned with the laser beam. On the other hand, the laser beam that has passed through the flow field is received and a position where the first liquid body traverses the laser beam is obtained using the scan intensity signal of the received laser beam so that the flow of the second liquid body is visualized. The position where the first liquid body traverses the laser beam can be obtained based on a position on a time axis where a value of the scan intensity signal is less than a set threshold.

Abstract: A ship motion prediction system is described that includes a plurality of surface platforms and a central computer having a communications interface. The platforms each include a propulsion system for movement of the platform, a plurality of sensors operable for gathering sensor data relating to an environment proximate the platform, a processing device communicatively coupled to the propulsion system and the plurality of sensors, and a transceiver communicatively coupled to the processing device. The central computer includes a communications interface, and the processing device is programmed to transmit sensor data to the central computer via the transceiver and the communications interface. The central computer is programmed to transmit commands for operation of the propulsion system to the processing device via the communications interface and transceiver.

Abstract: A powder dispenser useable as a golf accessory includes a body of flexible material for housing a quantity of powder and a cap for controlling discharge of the powder. The cap includes an orifice for discharging the powder and a gate controlled by rotating the cap relative to the body to provide selective fluid communication with the powder within the body.

Abstract: A powder dispenser useable as a golf accessory includes a body of flexible material for housing a quantity of powder and a cap for controlling discharge of the powder. The cap includes an orifice for discharging the powder and a gate controlled by rotating the cap relative to the body to provide selective fluid communication with the powder within the body.

Abstract: This invention is directed to an exemplary wind detector device. The device includes a container having an interior and a nozzle in fluid communication with the interior. The device further includes powder in the interior of the container and a strip of material having first and second ends. The first end is secured to the container and the second end is configured to be secured to a support structure such as clothing.

Abstract: A wind gauge includes particles dispensed from their container as a floating cloud which is carried along by ambient wind and thus illustrates wind speed and direction. The particulate media may also include a mixture of phosphorescent and chalk particles, so that the floating cloud is illuminable and thus more easily visible especially during low-light and nocturnal conditions. The particles may also embody a scent and be used to form a scent trail as they are carried along by the wind and as they gradually settle out of the air. The container includes an internal light source for discreetly phosphorescing the particles while inside the container. The container may also be compressible with a restricted exit that forcefully ejects particles therefrom.

Abstract: A cold smoke generating device includes an air source that may include a hollow flexible collapsible container having an expandable and compressible cavity for accepting air and air-borne reagent therein. The collapsible container is fluidly connected with a narrow flexible extension that includes an elongated cavity or chamber. Isolated and/or free reagents are disposed within the chamber of the narrow flexible extension. These reagents are capable of reacting with each other, with atmospheric air, or with other gases and fluids to generate a visible aerosol when expelled into the surrounding air.

Abstract: Wind indicator apparatus for indicating air flow comprising: a direction pointer, including a vane member, for providing a visible indication of air flow direction; pivoting means including a fixed portion for coupling to a sailing craft and a pivotable portion able to pivot with respect to said fixed portion and with which said direction pointer is entrained for movement therewith; and a counterbalance extending from said pivotable portion of said pivoting means and arranged to move therewith, the mass of the counterbalance being disposed so as to maintain the direction pointer in a substantially level position.

Abstract: The invention relates to a multifunction probe for aircraft. The probe has a mobile vane intended to align with the axis of an air flow around the probe. The mobile vane comprises first pressure pickup means for measuring the total pressure of the flow and second pressure pickup means for measuring the static pressure of the flow. The mobile vane furthermore has a profile whose flexure is variable.

Abstract: A pouch-like receptacle for housing and dispensing a fibrous, windborne material useful in detecting air currents, air movement or wind speed and direction is disclosed. The receptacle includes at least one aperture or opening for accessing and dispensing said fibrous material and may include a reclosable opening for refilling the receptacle with said fibrous material as necessary or desirable. The receptacle is also adaptable so as to allow permanent incorporation or removable attachment of the device to a variety of items or articles, including golf accessories, bunting or observation accessories and articles of clothing.

Abstract: A multifunction probe for aircraft to determine in particular the static pressure and the total pressure of an airflow located in the vicinity of the aircraft and the angle of incidence of the aircraft with respect to the airflow. The probe includes a movable blade configured to orient itself along the axis of the airflow. The movable blade includes at least one static pressure tap orifice located on one side of the blade and a pressure tap configured to measure the angle of incidence of the blade with respect to the airflow. The probe further includes a pressure measurement device associated with each pressure tap and a device to calculate the total pressure of the airflow as a function of the measurements carried out by the various measurement devices of the probe.

Abstract: A refillable receptacle for housing and dispensing a fibrous, windborne material is disclosed. The receptacle includes a closure cap having one or more apertures for dispensing said fibrous material and has a threaded bottom for attachment to, and replacement of, the windage/elevation cap an optical scope. The threaded bottom also allows the device to be attached to an archery bow or bow stabilizer. The bottom of the device may also be adapted so as to allow attachment of the device to pliable articles such as fabric or clothing or to rigid articles such rails or platforms.

Abstract: A method and apparatus for identifying the location of a gas leak source. The apparatus includes a gas detector for detecting the presence of gas and a wind direction indicator. The method traces a gas leak source location using the apparatus including the gas detector, arranged to detect the presence or absence of a gas, and the wind direction indicator.