Abstract: A method may include obtaining first nuclear magnetic resonance (NMR) data and acquired permeability data regarding a geological region of interest. The method may further include determining, using a neural network and second NMR data, predicted permeability data regarding a predetermined formation within the geological region of interest. The neural network may be trained using the first NMR data and the acquired permeability data. The method may further include determining a predetermined fracture size within the predetermined formation based on the predicted permeability data. The method may further include determining a predetermined type of lost circulation material (LCM) based on the predetermined fracture size. The method may further include transmitting a command to a well system that triggers a well operation using the predetermined type of LCM.

Abstract: The present disclosure provides a method for determining the remaining capacity of a lithium-sulfur battery using a voltage drop value obtained by applying a constant current in an open-circuit state and a battery pack implementing the method.

Abstract: A vibration data collection device monitors vibration of a machine, generates original machine vibration waveform data based on the monitored vibration, and removes portions of the original machine vibration waveform data that do not indicate an occurrence of a vibration event related to a potential fault in the machine. The vibration data collection device then stores thinned waveform data that includes blocks of the original machine vibration waveform data and excludes the portions that have been removed. A data analysis computer generates a thinned waveform plot based on the thinned waveform data. In some embodiments, the thinned waveform plot includes the blocks of original machine vibration waveform data separated in time by gaps representing the portions that have been removed.

Abstract: The present invention relates to a method for determining locations of wells in a field containing a hydrocarbon reservoir, said method comprising: ?receiving a first set of geological gridded models; ?receiving a set of criteria for positioning wells; ?receiving a plurality of reference well patterns associated to the first set of geological gridded models; ?estimating a plurality of weights, each weight being associated to a respective criterion among the plurality of criteria, based on the plurality of reference well patterns and the received set of criteria; ?receiving a second geological gridded model of the field; and ?determining locations of wells in the second geological gridded model based on the received set of criteria and the plurality of estimated weights.

Abstract: In an example method a system obtains first data regarding a first oil well, including one or more first thermal images of the oil well generated by one or more first thermal cameras. The system determines, using computerized neural network, a presence of a gas leak at one or more locations on the first oil well based on the first data. The one or more locations include at least one of a first location along a pipeline configured to convey gas to a flare area of the first oil well, or a second location at a rig floor of the first oil well. In response to determining the presence of the gas leak at the one or more locations, the system generates a notification indicating the presence of the gas leak at the one or more locations.

Abstract: The present disclosure relates to a motor control system including: a motor control device, including a semiconductor integrated circuit having a memory and forming a control loop for a motor so as to control a drive of the motor; and an external debug device, externally connected to the motor control device and accessible to the memory in the motor control device. The external debug device includes a disturbance signal superimposer and a frequency characteristics deriver. The interference signal superimposer generates a disturbance signal for the control loop and superimposes the disturbance signal on a signal generated in the control loop. The frequency characteristics deriver derives frequency characteristics of the control loop based on the signal generated in the control loop by superimposition.

Abstract: A battery management system and method for performing a battery state and, optionally, health parameter observation is disclosed, in particular, cell state-of-charge (SOC) observation, with two redundant, independent and dissimilar lanes. Specifically, a SOC determination in a first one of the lanes is based on Coulomb Counting. The other lane employs a different algorithm than Coulomb Counting. In some embodiments, a battery health observation is further performed independently by the two lanes, wherein the first lane employs an aging model and the other lane a different (dissimilar) algorithm. On the basis of state and health observation, state (state of function) of the battery system can be predicted to determine a range of flight in accordance with a predetermined flight profile.

Abstract: An apparatus for diagnosing a battery may include a voltage measurement unit that measures a voltage of a battery cell, a fitting equation calculation unit that calculates a fitting equation for the voltage of the battery cell, and a diagnostic unit that diagnoses whether or not the battery cell is abnormal based on the fitting equation for the voltage of the battery cell.

Abstract: A method and apparatus for determining safety of a battery are disclosed, where the method includes identifying a charge state or a discharge state of the battery, activating pulse probe currents at different depths of charge or discharge (charge/discharge) of the battery, in response to identifying the charge or discharge state of the battery, and detecting and differentiating between a state of short (SOS) and a state of health (SOH) of the battery based on variations of the pulse probe currents as a function of the depths of charge/discharge.

Abstract: A non-contact temperature measurement system for calculating estimated core body temperature is disclosed. The temperature measurement system can include a sensor that can detect the temperature of a patient and the temperature of ambient surrounding. The temperature of the patient and the ambient temperature can then be used to determine a core body temperature. The temperature measurement system includes an optical module having a light emitter and a light detector. The light emitter emits a beam of light towards the patient and the light detector detects a beam of light reflected by the patient. The reflected beam is analyzed to determine a distance between the temperature measurement system and the patient.

Abstract: A method for ascertaining an approximation and/or a prognosis for the true degradation state of a rechargeable battery. The method includes: providing a time sequence of values of the degradation state ascertained using measuring technology for past points in time; providing a trained HMM, which indicates, as a function of the true degradation state, at which probability during the ascertainment using measuring technology which particular value of the degradation state is monitored, and at which probability the true degradation state is maintained for what length of time, and/or at which probability this true degradation state transitions to which worse degradation state in the next time step; from the monitored time sequence and the HMM, the most probable characteristic of the true degradation state in the past that is in agreement with the monitored time sequence is ascertained; the desired approximation and/or prognosis is evaluated based on the most probable characteristic.

Abstract: A system for monitoring a battery of a vehicle includes a processor and a memory storing instructions which when executed by the processor configure the processor to receive first features including statistics of internal resistances of a plurality of cell groups in a battery pack of the battery, compute second features for the battery pack based on the first features, determine whether the battery pack is faulty based on one or more of the second features, and determine, in response to the battery pack being faulty, whether one or more of the cell groups is faulty based on one or more of the first features.

Abstract: The present invention belongs to the field of geologic survey, and particularly relates to a real-time calibration method and system of acoustic logging data while drilling for precise navigation of deep oil and gas, aiming to solve a problem of inability to automatically identify stratum boundaries to adapt to geology at various different depths in an existing drilling process. The method of the present invention includes: acquiring standardized acoustic parameter data while drilling; acquiring time-depth relationship of historical acoustic curve data of drilled wells, and current actual drilling time-depth relationship; performing interpolation based on the current actual drilling time-depth relationship, to acquire interpolated current actual drilling time-depth relationship; correcting the interpolated current actual drilling time-depth relationship; and completing current precise depth correction based on the current actual drilling acoustic curve.

Abstract: The invention relates to a method for determining polymeric product properties (1), wherein a prediction model (7) is provided for calculating polymeric product properties (1) based on production parameters on a computer system, which production parameters comprise formulation portions (2) specifying raw material portions for polymeric production and comprise processing parameters (3) specifying process properties during polymeric production, wherein user input is provided to the computer system, which user input comprises user production parameters (4) specifying a set of production parameters, user product parameters (5) specifying polymeric product properties and a proximity metric for quantifying conformity with the user product parameters (5), wherein the computer system applies the user production parameters (4) to the prediction model (7) to calculate resultant product properties (8), wherein the computer system applies the proximity metric to the resultant product properties (8) with respect to the us

Abstract: A current protection system for an energy storage system includes: batteries connected in parallel; battery control units respectively connected to the batteries, and respectively having battery current measurement units; a battery connection panel connecting the battery control units to one connection point, the battery connection panel having a contact point current measurement unit; and a control unit configured to sum current values respectively measured by the battery current measurement units and a current value measured by the contact point current measurement unit, and to detect a presence of an internal short circuit based on the sum.

Abstract: A learning method of a state estimation model includes training the state estimation model to learn a relationship of state estimation input data obtained by preprocessing terminal currents and terminal voltages of a secondary battery with a charge rate or a deterioration degree of the secondary battery. The state estimation input data includes time-series data of: difference gradients of terminal voltage differences with respect to terminal current differences; open circuit voltages; open circuit voltage change amounts; and integrated current values of the terminal currents.

Abstract: A method and apparatus for estimating a state of a battery. The method includes obtaining a measured voltage of a battery from a sensor connected to the battery, obtaining an estimated voltage of the battery from an electrochemical model stored in a memory, estimating an aging variation of the battery based on the measured voltage and the estimated voltage, and updating an aging parameter of the electrochemical model using the aging variation.

Abstract: This optical fiber distribution measurement system of distributed optical fiber sensing type includes: a tunable wavelength distributed feedback LD (1) for obtaining a DTSS signal through frequency shift analysis; an external resonance laser (2) for obtaining a DAS signal through phase shift analysis; a pulse compression coding circuit (4) including an intensity modulator (4a) and an phase modulator (4b); an acousto-optic switch (5); an erbium doped optical fiber amplifier (6); a circulator (7); a diversity device (8); a digitizer (11); a CPU (12); and a serial transfer interface (13). Through calculation on discrete signals sent from the digitizer (11), the CPU (12) converts an analyzed Rayleigh frequency shift signal obtained as the DTSS signal, to phase error, and corrects an analyzed phase signal obtained as the DAS signal, by the phase error.

Abstract: A measurement system for determining a status of a high-voltage power system in a vehicle, the measurement system comprising: a first voltage measurement unit and a second voltage measurement unit, each of the first and second voltage measurement units being connected between a positive pole and a negative pole of the power system; a measurement system control unit connected to the first and second voltage measurement unit and configured to: control the first and second voltage measurement unit to simultaneously measure a voltage to determine a respective first and second pole-to-pole voltage; compare the first pole-to-pole voltage with the second pole-to-pole voltage, and if a voltage difference is higher than a voltage threshold value, provide an indication that the voltage measurement is not reliable.

Abstract: A system for evaluating a battery cell includes an imaging device configured to take a first image of at least part of the battery cell when the battery cell is in a first deformation state, and take a second image of the at least part of the battery cell when the battery cell is in a second deformation state. The system also includes a processor configured to analyze the first image and the second image, identify a first region of the first image that represents a suspected discontinuity, the first region corresponding to a portion of the battery cell, compare the first region of the first image to a second region of the second image, the second region corresponding to the portion of the battery cell, and determine that the suspected discontinuity is an actual discontinuity based on a difference between the first region and the second region.