Abstract: Some embodiments provide a non-transitory machine-readable medium that stores a program. The program receives data from a set of data sources. Based on the data, the program further generates a time series data set that includes a plurality of data points. The program also determines a set of subsets of data points from the time series data set. The program further groups the set of subsets of data points into a set of clusters. The program also provides the set of clusters as input to a machine learning model to cause the machine learning model to determine a probability of an occurrence of an event based on the set of clusters.

Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeter may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube (4), a driver (16) for imparting a force proportional to an applied excitation signal to the measurement tube (4) for setting the measurement tube (4) into an oscillatory motion, motion sensors (17, 18) for measuring the motion of the measurement tube (4), an excitation signal generator, for generating the excitation signal to be supplied to the driver (16) based on the measurement signals derived by the motion sensors (17, 18), means (20, 27) for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube (4) and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a flui

Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeter may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube (4), a driver (16) for imparting a force proportional to an applied excitation signal to the measurement tube (4) for setting the measurement tube (4) into an oscillatory motion, motion sensors (17, 18) for measuring the motion of the measurement tube (4), an excitation signal generator, for generating the excitation signal to be supplied to the driver (16) based on the measurement signals derived by the motion sensors (17, 18), means (20, 27) for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube (4) and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a flui

Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube, a driver for imparting a force proportional to an applied excitation signal to the measurement tube for setting the measurement tube into an oscillatory motion, motion sensors for measuring the motion of the measurement tube, an excitation signal generator, for generating the excitation signal to be supplied to the driver based on the measurement signals derived by the motion sensors, means for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a fluid through the measurement tube, wherein the corrected fl

Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube, a driver for imparting a force proportional to an applied excitation signal to the measurement tube for setting the measurement tube into an oscillatory motion, motion sensors for measuring the motion of the measurement tube, an excitation signal generator, for generating the excitation signal to be supplied to the driver based on the measurement signals derived by the motion sensors, means for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a fluid through the measurement tube, wherein the corrected fl

Abstract: A laser diode (1) having an optical path (15) defined in an active layer (2) which is sandwiched between a substrate layer (3) and a top layer (4) and defined by a ridge (14) formed in the top layer (4) outputs laser light of a single predetermined wavelength. Refractive index altering grooves (21) extending transversely in the top layer (4) are provided at spaced apart locations for altering the refractive index of the active layer (2) along the optical path at partial reflecting locations (20) for causing partial longitudinal reflections of the laser light generated in the optical path (15) so that standing waves or harmonics thereof of the single predetermined wavelength are set up between the respective partial reflecting locations (20) and a first mirror facet (8) in the optical path (15).

Abstract: A laser diode (1) for outputting light of a single mode comprises a substrate layer (5), a cladding layer (6) and a compound light propagating layer (7) comprising first, second, third and fourth layers (9 to 12). A wave guiding region (15) of refractive index lower than its adjacent regions is defined by the third layer (11) by two quantum wells (16) positioned at the anti-node of light of a single mode which is propagating in the third layer (11) for propagating and amplifying the single mode light. A central ridge (17) locates the wave guiding region transversely of the direction of light propagation. The wave guiding region (15) can also be defined by shaping the top cladding layer (6) by forming an elongated central channel through the central ridge (17).

Abstract: A laser diode (1) for outputting light of a single mode comprises a substrate layer (5), a cladding layer (6) and a compound light propagating layer (7) comprising first, second, third and fourth layers (9 to 12). A wave guiding region (15) of refractive index lower than its adjacent regions is defined by the third layer (11) by two quantum wells (16) positioned at the anti-node of light of a single mode which is propagating in the third layer (11) for propagating and amplifying the single mode light. A central ridge (17) locates the wave guiding region transversely of the direction of light propagation. The wave guiding region (15) can also be defined by shaping the top cladding layer (6) by forming an elongated central channel through the central ridge (17).