Abstract: A weather forecasting system may receive satellite image samples and identify an updraft and components of the updraft within a cloud. These satellite image samples are collected over time (e.g., at 30 second to 1 minute time intervals). The system may identify an area of rotation and/or divergence at cloud top in a cumulus cloud or mature convective storm over time by comparing the samples and determine a parameter indicative of the updraft based on the area of rotation and divergence. The system may estimate aspects of the environment related to storm development and predict the occurrence of a weather event in the future based on the parameter and generate an output indicative of the occurrence.

Abstract: A method for controlling a fuel cell vehicle including a fuel cell to generate electric power via an electrochemical reaction between fuel gas and oxidant gas, the method includes determining whether the fuel cell vehicle is in a fuel supply state in which the fuel gas is supplied from an outside of the fuel cell vehicle into a fuel storage chamber via a filling lid box of the fuel cell vehicle. It is determined that the fuel gas does not leak, even if a fuel gas detector provided in the filling lid box detects the fuel gas when the fuel cell vehicle is in the fuel supply state.

Abstract: System and method for scalable and reliable scheduling of iterative seismic full wavefield inversion algorithms with alternating parallel and serial stages of computation on massively parallel computing systems. The workers are independent, initiating actions and unaware of each other, and given limited information. This enables application of optimal scheduling, load-balancing, and reliability techniques specific to seismic inversion problems. The central dispatcher specifies the structure of the inversion, including task dependency, and keeps track of progress of work. Management tools enable the user to make performance and reliability improvements during the execution of the seismic inversion.

Abstract: A method, computer program product, and apparatus are provided for controlling components of a detection device. The device may detect turbidity of liquid with sensors such as a density sensor and/or nephelometric sensor. A light modulation pattern may reduce or eliminate interference in sensor readings. Readings may be performed during off cycles of an illumination light to reduce interference but to provide improved visibility of a tube. Dark and light sensor readings may be performed with an emitter respectively off or on to account for ambient light in subsequent readings. Readings from the density sensor and/or nephelometric sensor may be used to calculate McFarland values. The device may be zeroed based on an emitter level that results in a sensor reading satisfying a predetermined criterion.

Abstract: Vibrational behavior of a wellbore operation can be characterized as a vibrational map relating a modeled or sensed vibration level of the operation's equipment to operational parameters of the wellbore operation. The operational parameters can be controllable by settings of the equipment. The map can include multiple contour lines, each representing a set of adjacent coordinates of operational parameters that have the same vibrational level. Tracing a contour line can include determining vibration at a pre-tracing coordinate, adjusting the operational parameters until the vibration level to be mapped is reached at a tracing origin coordinate, then varying the operational parameters while keeping the vibration level constant until the tracing origin or a bound of the operational parameters is reached. Vibration levels having multiple, non-intersecting contour lines can be found by repeating tracing from a different pre-tracing coordinate.

Abstract: In a fuel cell system, an adhesion detection apparatus for detecting adhesion of a second switching valve for a sub tank is provided. The adhesion detection apparatus opens a first switching valve and a second switching valve for switching to a double switching valve open state where a fuel cell performs power generation, and thereafter, closes the first switching valve and opens the second switching valve for switching to a second switching valve open state where the fuel cell performs power generation, and detects adhesion of the second switching valve based on a change of a detection value of a pressure sensor in the second switching valve open state.

Abstract: In accordance with an example embodiment a method, apparatus and computer program product are provided. The method comprises receiving, at an apparatus, a sampled data associated with an activity from one or more sensors wirelessly coupled to the apparatus. The sampled data is generated at the one or more sensors based on a compressive sampling of an activity data associated with the activity. The compressive sampling is performed based on a sampling information. The activity is classified based at least on the sampled data. An error associated with the classification of the activity is determined. The sampling information is updated or retained based on a comparison of the error with a threshold error. The updated sampling information is utilized for generating an updated sampled data. The updated sampled data facilitates in reclassification of the activity.

Abstract: Systems and methods of analyzing a user's motion during a swimming session are described. One or more motions sensors can collect motion data of the user. A processor circuit can make motion analysis based on the motion data. The processor circuit can determine if the user's arm swing is a genuine swim stroke. The processor circuit can also determine whether the user is swimming or turning. The processor circuit can also classify the user's swim stroke style. The processor circuit can also determine the user's swim stroke phase. The processor circuit can also determine the user's stroke orbit consistency.

Abstract: The present invention relates to a method for estimating the movement of a walking pedestrian (1), the method being characterised in that it comprises the following steps: (a) Acquisition, by inertial-measurement means (20) rigidly connected to a lower limb (10) of said pedestrian (1) and positioned in such a way as to have substantially a movement of rotation with respect to a distal end (11) of said lower limb (10) at least when said distal end (11) of the lower limb (10) is in contact with the ground, of an acceleration and of an angular speed of said lower limb (10); (b) Estimation, by data-processing means (21, 31, 41), of a speed of said lower limb (10) according to said measured acceleration and said measured angular speed.

Abstract: A GPS positioning unit acquires GPS positioning data of an object positioned based on a signal from a GPS satellite, and an angular velocity sensor acquires an output signal of the object. A sensitivity coefficient calculation unit sequentially derives a temporary sensitivity coefficient of the angular velocity sensor based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit derives a sensitivity coefficient for correcting the angular velocity output from the angular velocity sensor, by performing statistical processing on the temporary sensitivity coefficient of the angular velocity sensor that has been sequentially derived. A correlation coefficient calculation unit derives a correlation coefficient based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit changes a forgetting coefficient to be used when the statistical processing is performed, in accordance with the correlation coefficient.

Abstract: A present measurement value p (k) of each of plural characteristic parameters p, representing the characteristics of a secondary battery 220, is input to initial characteristic model to calculate an initial characteristic estimated value p1 (0?k) of a first characteristic parameter as output of the initial characteristic model. A first index value F1 (i) representing the present state of the target is calculated based on a present time series P1 (i) of the measurement value p1 (k) of the first characteristic parameter. A second index value F2 (i) representing a past state of the target is calculated on the basis of a present time series P1 (0?k, i) of the initial characteristic estimated value p1 (0?k) of the first characteristic parameter. A degradation state of the target is determined based on the first index value F1 (i) and the second index value F2 (i).

Abstract: Systems and methods for detecting and identifying arcing are disclosed. A method of detecting arcing includes obtaining data indicative of voltage and data indicative of current, determining a waveform of a cycle of a primary load current according to the data indicative of current, determining at least one noise signal according to the determined waveform of a cycle of the primary load current and the data indicative of current, determining a probability density of the noise signal according to a time window, and comparing the probability density of the noise signal with at least one model probability density.

Abstract: A safety input system for monitoring a sensor can include a voltage sensing circuit configured to produce a first detection output upon sensing a signal exceeding a voltage threshold, and a current sensing circuit configured to produce a second detection output upon sensing the signal exceeding a current threshold and/or voltage threshold. The signal can come from a sensor in an industrial automation system, such as a light curtain. The first detection output can be provided to a first processor, and the second detection output can be provided to a second processor, so that two processors can independently monitor the sensor. The signal can be monitored by separate input systems. Periodically the first processor can inject a first test signal into the input system for the second processor to detect, and the second processor can inject a second test signal into the input system for the first processor to detect.

Abstract: A three-dimensional (3D) seismic data set is divided into a plurality of 3D source wavefield subsets, each 3D source wavefield subset is stored in an array element of an array. For each array element, the associated 3D source wavefield is decomposed into a smaller data unit; data boundaries of the smaller data units are randomly shifted; a folding operation and a sample operator is applied to the smaller data units to keep the smaller data units from overlapping; the folded smaller data units are smoothed to generate smoothed data; a quantization operation is performed on the smoothed data to produce quantized data; and the quantized data is compression encoded to generate compressed data. The compressed data associated with each array element is decompressed to generate a 3D seismic output image.

Abstract: According to an aspect, an elevator sensor calibration system includes one or more sensors operable to monitor an elevator system, an elevator sensor calibration device, and a computing system. The computing system includes a memory and a processor that collects a plurality of baseline sensor data from the one or more sensors during movement of an elevator component, collects a plurality of disturbance data from the one or more sensors while the elevator component is displaced responsive to contact with the elevator sensor calibration device during movement of the elevator component, and performs analytics model calibration to calibrate a trained model based on one or more response changes between the baseline sensor data and the disturbance data.

Abstract: A method includes generating a torsional wave that propagates in a drill string having a drill bit coupled at a first end of the drill string and a top drive coupled at a second end of the drill string, and determining first and second components of the torsional wave. The first component propagates from the drill bit to the top drive and the second component propagates from the top drive to the drill bit. The method further includes calculating a first control signal to mitigate the first component, calculating a second control signal to regulate the second component, and generating a torque command based on the first and second control signals to control the top drive to dampen the torsional wave.

Abstract: A method may comprise: inserting into a wellbore penetrating a subterranean formation a tool comprising: a transmitter sub assembly comprising a transmitter; and a receiver sub assembly comprising a receiver; generating an electromagnetic wave at the transmitter; propagating the electromagnetic wave through the subterranean formation; receiving the electromagnetic wave in the receiver; generating a response signal in the receiver; calculating a distance to a bed boundary position in a TVDp direction, wherein the TVDp direction is a direction where an angle between the TVDp direction and a tool axis is equal to a tool inclination from a true vertical direction (TVD), wherein TVD is a direction with respect to gravity; calculating a distance to bed boundary in a TST direction, wherein the TST direction is a true stratigraphic thickness direction in a direction towards a bed boundary; calculating a distance to bed boundary in a TVD direction; generating a formation characterization comprising a visual representa

Abstract: A system and method for supervising, managing, and monitoring the structural integrity of a network of metal pipelines for transporting a fluid, for locating the leaking point, and for evaluating the fault or failure, comprising a plurality of detection units (1) positioned on a pipeline (2) for oil or gas at a distance apart by a given value and fixedly applied to the pipeline (2), and a central data-processing unit (4) connected by means of communication lines (5) to said detection units (1) for receiving from the latter detection data, wherein said units (1) comprise sensors capable of measuring one or more physical quantities, wherein said processing unit (4) processes in real time the detection data received from the detection units (1).

Abstract: A method for wellbore construction management includes measuring at least one drilling operating parameter during drilling of a wellbore. At least one well state parameter is calculated from the measured drilling operating parameter. A difference between the calculated well state parameter and a predetermined value of the well state parameter is determined. When the difference exceeds a selected threshold a modified well plan is calculated comprising at least one drilling task to enable construction of at least part of the wellbore to conform to the modified well plan. The at least one drilling task is displayed to a user.

Abstract: A method of calibrating an offset of a pressure sensor, by which an offset of a sensing value of a pressure sensor, which detects a pressure of hydrogen in a fuel cell system, is accurately calibrated. The method includes receiving, by a controller, a sensing value of a pressure sensor which detects a hydrogen pressure in a state where a hydrogen supply starts after a start of a fuel cell system; counting, by the controller, a time for which the sensing value of the pressure sensor increases from a first pressure P1 to a second pressure P2; calculating, by the controller, an offset value corresponding to the counted time by use of stored setting data; and calibrating, by the controller, a subsequent sensing value of the pressure sensor by the calculated offset value in real time when the offset value is calculated.