In the latest Python Challenge, researchers bagged over 2,000 pounds of the problematic snakes and discovered some of the species' secrets.

South American country is emerging as a popular destination for eco-travelers.

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On demand insurtechs encourage incumbents to give back premium as it is predicted providers could save £1bn as claims plummet amid lockdown.

Final report on study conducted by SPL is published by Noble Energy

Nova pays its field service engineers by salary only with no overtime compensation for the many overtime hours they regularly work

Founded by mothers for mothers, Stand Up! For Accurate Prenatal Answers is on a mission to ensure that all women in the U.S. have access to accurate and non-invasive prenatal genetic screening tests concerning fetal health.

Anton Paar, the world leader in measuring density, concentration, or dissolved CO2, has acquired Quantachrome which adds know-how in the analysis of particle surface areas, porosity and density of solids to the portfolio of 150+ analytical solutions.

How the Company is Using Sage X3 to Operate Leanly and Prepare for Industry 4.0

It has recently been shown that word embeddings encode social biases, with a harmful impact on downstream tasks. However, to this point there has been no similar work done in the field of graph embeddings. We present the first study on social bias in knowledge graph embeddings, and propose a new metric suitable for measuring such bias. We conduct experiments on Wikidata and Freebase, and show that, as with word embeddings, harmful social biases related to professions are encoded in the embeddings with respect to gender, religion, ethnicity and nationality. For example, graph embeddings encode the information that men are more likely to be bankers, and women more likely to be homekeepers. As graph embeddings become increasingly utilized, we suggest that it is important the existence of such biases are understood and steps taken to mitigate their impact.

In this paper, we study the problem of fair classification in the presence of prior probability shifts, where the training set distribution differs from the test set. This phenomenon can be observed in the yearly records of several real-world datasets, such as recidivism records and medical expenditure surveys. If unaccounted for, such shifts can cause the predictions of a classifier to become unfair towards specific population subgroups. While the fairness notion called Proportional Equality (PE) accounts for such shifts, a procedure to ensure PE-fairness was unknown.

In this work, we propose a method, called CAPE, which provides a comprehensive solution to the aforementioned problem. CAPE makes novel use of prevalence estimation techniques, sampling and an ensemble of classifiers to ensure fair predictions under prior probability shifts. We introduce a metric, called prevalence difference (PD), which CAPE attempts to minimize in order to ensure PE-fairness. We theoretically establish that this metric exhibits several desirable properties.

We evaluate the efficacy of CAPE via a thorough empirical evaluation on synthetic datasets. We also compare the performance of CAPE with several popular fair classifiers on real-world datasets like COMPAS (criminal risk assessment) and MEPS (medical expenditure panel survey). The results indicate that CAPE ensures PE-fair predictions, while performing well on other performance metrics.

Disclosed is a splicing method of two second-generation ReBCO high temperature superconductor coated conductors (2G ReBCO HTS CCs), in which, with stabilizing layers removed from the two strands of 2G ReBCO HTS CCs through chemical wet etching or plasma dry etching, surfaces of the two high temperature superconducting layers are brought into direct contact with each other and heated in a splicing furnace in a vacuum for micro-melting portions of the surfaces of the high temperature superconducting layers to permit inter-diffusion of ReBCO atoms such that the surfaces of the two superconducting layers can be spliced to each other and oxygenation annealing for recovery of superconductivity which was lost during splicing.

An apparatus for measuring a time interval between a start signal edge and a stop signal edge provides a stable clock signal as input to a delay line formed by a series of similar logic gates. The output signal of the last gate of the series is phase locked to the clock signal by adjusting a bias signal controlling the switching speed of all gates. The clock signal and the output signal of each gate form a set of phase distributed periodic timing signals applied to a start time measurement unit (TMU) and a similar stop TMU. The start TMU counts edges of one of the timing signals occurring between an edge of an arming signal and the start signal edge and generates output data representing a time delay between the arming signal and the start signal edge. The data represents the start delay as a whole and fractional number of clock signal periods by conveying the counter output and by indicating which of the timing signals had an edge most closely following the start signal edge. The stop TMU similarly produces output data indicating a whole an fractional number of clock cycles occurring between the arming signal and the stop signal edge. The delay represented by the start TMU output data is subtracted from the delay represented by the stop TMU output data to determine the interval between the start and stop signal edges.

A prefetch optimizer tool for an information handling system (IHS) may improve effective memory access time by controlling both hardware prefetch operations and software prefetch operations. The prefetch optimizer tool selectively disables prefetch instructions in an instruction sequence of interest within an application. The tool measures execution times of the instruction sequence of interest when different prefetch instructions are disabled. The tool may hold hardware prefetch depth constant while cycling through disabling different prefetch instructions and taking corresponding execution time measurements. Alternatively, for each disabled prefetch instruction in the instruction sequence of interest, the tool may cycle through different hardware prefetch depths and take corresponding execution time measurements at each hardware prefetch depth. The tool selects a combination of hardware prefetch depth and prefetch instruction disablement that may improve the execution time in comparison with a baseline execution time.

The present invention has an object to measure lymphatic pressure with more safety and ease at lower cost. To achieve this, a lymphatic pressure-measuring system 1 includes: a manchette 11 fitted on a vital observation portion; a measurement unit 13 that measures and outputs pressure of the manchette 11; an infrared camera 21 that detects fluorescence emitted from fluorescent dye previously injected into a lymph vessel in the vital observation portion; and an image processing device 22 that generates and displays an image showing a position of the fluorescent dye in the lymph vessel based on a detection result of the infrared camera 21. The infrared camera 21 repeats the detection while the pressure of the manchette 11 decreases from first pressure to block a lymph flow in the vital observation portion to second pressure at restart of the lymph flow. The measurement unit 13 repeats the measurement during the period.

An apparatus and method for determining a signal quality of an input signal representing a repetitious phenomena derived from at least one sensor connected to a patient is provided. A detector receives the input signal and determines data representing the repetitious phenomena from the input signal for use in determining at least one patient parameter. A measurement processor is electrically coupled to the detector that determines a first signal quality value by identifying at least one feature of the repetitious phenomena data and compares the at least one feature of a first set of the determined repetitious phenomena data with a second set of the determined repetitious phenomena data to determine a feature variability value and using the feature variability value to determine a stability value representative of the quality of the input signal.

A measuring device comprising at least one mixer structure to receive a fiber suspension sample from at least one process part. Each mixer structure is provided with a measuring unit, a feeding valve for feeding feed liquid into a sample line for pushing the sample in the sample line towards the measuring unit, a mixing valve structure for feeding dilution liquid into the mixer structure The mixer structure mixes the flowing sample and the dilution liquid with one another in order to reduce the consistency of the sample. The measuring device measures from the first part of the mixed sample one property of the fiber suspension and the measuring device measures from the second part of the mixed sample a further property.

A dual capability ultra high pressure (UHP) fire attack system includes a fluid jet assembly and an UHP attack line system. The fluid jet assembly and the UHP attack line system are coupled to a high pressure fluid source. The fluid is discharged from both the fluid jet assembly and the UHP attack line system as a mist having a droplet diameter of approximately 150 microns. When infused with an abrasive material, the fluid jet assembly may be used to cut through structural surfaces, so that a fire may be “knocked down” before the fuel source is attacked.

A WDM optical signal is transmitted through a tunable optical filter and is polarization-nulled to find optical signal to noise ratio of individual WDM channels. The polarization nulling can be performed using a heuristic multipoint extrema search method, such as Nelder-Mead method. A plurality of checkpoints can be included in the search to verify the progress and to improve the overall robustness of a real-time polarization nulling.

A handheld distance measuring instrument includes a first emission device, a first reception device and a second reception device. The first emission device is configured to emit an optical measurement radiation onto a target object. The first reception device is configured to detect the radiation returning from the target object. The second reception device is configured in order to detect a reference radiation internal to the instrument. The reception devices respectively include a first detector unit, a second detector unit, a first time measurement unit, and a second time measurement unit. The first time measurement unit is configured to be connected selectively to the first detector unit and to the second detector unit. The second time measurement unit is configured to be connected selectively to the first detector unit and to the second detector unit.

Techniques and devices for measuring polarization crosstalk in birefringence optical media including polarization maintaining fiber.

According to one embodiment, a three-dimensional shape measuring apparatus includes at least an aperture plate that is provided with a plurality of confocal apertures which are two-dimensionally arranged to have a predetermined arrangement period, and an aperture plate displacement portion that displaces the aperture plate at a constant speed in a predetermined direction perpendicular to the optical axis direction. Further, the aperture plate is provided with a cover member which is moved integrally with the aperture plate and which includes a transparent body allowing the light beams from the light source to pass therethrough and to be irradiated to the plurality of confocal apertures, and protects the plurality of confocal apertures from dust. Further, an imaging optical system, by which each of reflected light beams is guided to a photo-detector, is designed in consideration of optical properties of the whole optical system including the transparent body of the cover member.

An optical electrical field enhancing device includes: a transparent substrate having a structure of fine protrusions and recesses on the surface thereof; and a metal structure layer of fine protrusions and recesses formed on the surface of the structure of fine protrusions and recesses. The metal structure layer of fine protrusions and recesses has a structure of fine protrusions and recesses, in which the distances among adjacent protrusions are less than the distances among corresponding adjacent protrusions of the structure of fine protrusions and recesses of the transparent substrate.

There is provided a profile measuring apparatus which measures a profile of an object including: a projection unit which projects a pattern on the object from a projection direction; a measurement unit, which is displaced at a difference position for the projection unit and takes an image of the pattern from a direction different from the projection direction to measure a position on a surface of the object based on an image data obtained with the taken image; an object-rotation unit which rotates the object in two directions; and a pattern-rotation unit which is connected to the projection unit so as to be able to rotate the pattern relative to the object-rotation unit.

A coupling for connecting a rotating tube cleaning shaft to a tube cleaning machine where high pressure fluid is pumped through the coupling, where the coupling is sealed to contain the high pressure fluid, and where a machine driven rotary flexible shaft passes through the coupling.

A system and methods are provided for controlling a motor of a rod pumping system using previous RPMs of the motor and predicting an RPM of the motor; correcting a power factor of a motor of a rod pumping system; allocating energy consumption and allocating energy generation for a set of wells connected to an electricity meter using an amount of energy generated by each well; and generating an alert if a set of data is beyond a threshold for the set of data.

A method for measuring the neutron flux in the core of a nuclear reactor, the method including several steps recurrently performed at instants separated by a period, the method comprising at each given instant the following steps: acquiring a total signal by a cobalt neutron detector placed inside the core of the reactor; assessing a calibration factor representative of the delayed component of the total signal due to the presence of cobalt 60 in the neutron detector; assessing a corrected signal representative of the neutron flux at the detector from the total signal and from the calibration factor; assessing a slope representative of the time-dependent change of the calibration factor between the preceding instant and the given instant; the calibration factor at the given instant being assessed as a function of the calibration factor assessed at the preceding instant, of the slope, and of the time period separating the given instant from the preceding instant.

Methods, systems, and computer readable media for measuring multicast latency are disclosed. According to one method, the method includes emulating one or more Internet protocol television (IPTV) user devices by generating channel leave and join requests. The method further includes monitoring network responses to the channel leave and join requests and calculating, during a cycle of channel leave and join requests for a user device and prior to repeating the cycle, at least one metric of latency associated with the channel leave and join requests.

The airflow through a harvesting machine is adjusted by calculating a G-factor at a first point on an upper chaffer to determine if it is greater than 1+n, where n represents a desired factor. A blower is adjusted to reduce an airstream if the G-factor is greater than 1+n. A MOG factor is calculated if the G-factor is less than 1+n. The blower is adjusted to increase the airstream if the MOG-factor is less than 1+x, where x represents a desired factor. A MOG-factor is calculated at a second point if the MOG-factor at the point is greater than 1+x and the blower is adjusted to reduce the airstream if the MOG-factor at the second point is greater than 1+y, where y represents a desired factor or adjusted to increase the airstream if the MOG-factor at the second point is less than 1+y.

A forage harvester has an engine which is drivingly connected to a chopper cylinder via first drive belt, and to a first end of a drive shaft of a discharge accelerator. A second end of the drive shaft of the discharge accelerator is drivingly connected to a kernel processor via a second drive belt, is arranged, in the direction of harvested material flow, between the chopper cylinder and the discharge accelerator. The discharge accelerator comprises support disks which extend radially, and paddles. The support disks are attached to a hollow shaft enclosing the drive shaft, and, a sensor is arranged between the drive shaft and the discharge accelerator for the determination of the force transmitted by the drive shaft to the discharge accelerator.

A disk drive is disclosed comprising a disk, and a slider comprising a head, where the head comprises a write component electrically insulated from the slider. A bias voltage is applied to the write component, and a current flowing between the write component and the disk is measured, wherein the current is indicative of a fly height of the head.

Road paver with a towing machine and a movable screed and with a measuring device that is provided for determining a layer thickness of a road pavement that has been newly laid by the screed. The measuring device is formed to determine the layer thickness at an intended location, seen relative to a direction of travel, behind a rear edge of the screed, whereby the measuring device is provided on the road paver such that the layer thickness can be determined independently of a geometric shape and/or a movement of the screed.

A measuring apparatus for measuring a stereo video format includes an active space measuring circuit and a decision circuit. The active space measuring circuit is utilized for determining a position of an active space of a frame packing to generate an active space measuring result according to pixels values of a plurality of scan lines of the frame packing. The decision circuit is coupled to the active space measuring circuit, and is utilized for determining the stereo video format according to at least the active space measuring result.

An electromagnetic field measuring apparatus capable of measuring an electromagnetic field for a minuscule area in which electronic devices are densely packed with a high sensitivity is provided. In an electromagnetic field measuring apparatus according to the present invention, the amplitude level of signal light (pf) is adjusted by the analyzer (34) by adjusting its angle with respect to the plane of polarization of the signal light (pf) based on an amplitude level control signal (eb) supplied from the calculation control unit (40). An amplitude level control signal (eb) is supplied from the calculation control unit (40) to the analyzer (34) based on the spectrum (ea) of an electric signal (ed) measured by an RF spectrum analyzer (39). The amplitude level ration between the carrier and the sideband contained in the signal light (ph) incident on the optical receiver (38) is controlled to a fixed value.

A method for monitoring the state of a fill level measuring device (1) operating according to the radar principle and such a fill level measuring device, wherein the fill level measuring device (1) has at least one transceiver unit (2) for transmitting and receiving electromagnetic signals, and at least one antenna (3) for guiding, radiating and receiving electromagnetic signals. The antenna (3) has at least one interior space (4), and wherein the antenna (3) has a transmission characteristic with regard to the transmission of electromagnetic signals. Electromagnetic signals are emitted or directed at least partially in the direction of a wall section (5) of the interior space (4) of the antenna (3), the received electromagnetic signals are evaluated with respect to the transmission characteristic of the antenna (3), and the result of the evaluation is compared to at least one stored reference value.

A system for determining motor speed of a brush DC motor in an apparatus, including a first filter for receiving a substantially DC component of the motor current and parameters corresponding to the brush DC motor, for calculating a speed estimate thereof; an adaptive bandpass filter having a center frequency corresponding to the speed estimate of the first filter, for receiving the motor current and substantially isolating a periodic current fluctuation thereof; a block for determining a frequency of the periodic current fluctuation, the current fluctuation corresponding to motor speed of the brush DC motor. The adaptive bandpass filter uses debounce filtering to reduce rapid filter passband switching, and a run-in period prior to passband switching to obviate transient effects of filter switching.

The subject matter of the present disclosure is directed to developing a method of measuring the amount of producible oil and the producible oil saturation in shale-oil reservoirs using sample source rock. Further, the physical and chemical properties and amounts of producible oil in shale-oil reservoir samples may be determined. First and second solvents are applied to a sample source rock to extract petroleum from the sample source rock. The extracted source rock, the twice-extracted source rock, and the first and second extracted petroleum may be analyzed to determine the characteristics and properties of the reservoir rock.

This invention relates to methods and apparatus for determination of ion concentrations, particularly in downhole water from hydrocarbon wells, aquifers etc. It is useful in a wide range of applications, including predicting the formation of scale and fingerprinting waters from different sources. More particularly, the invention relates to the use of ligands whose electronic configuration is altered by the binding of the scaling ions within a water sample. These alterations are detected electrochemically by applying varying potential to electrodes and measuring current flow as potential is varied, from which is derived the concentration of scaling ions in the fluid.

An apparatus for measuring a volume of fluid includes at least one emitter configured to project a signal toward a predetermined position of a sample container, at least one receiver configured to receive the signal after the signal interacts with the sample container and a fluid transfer device in communication with the receiver and sample container. A change in the signal received by the receiver indicates when the fluid has dropped below the predetermined position. The apparatus determines a volume of fluid that the fluid transfer device has removed from the sample container when the receiver detects that the fluid has dropped below the predetermined position.

The present disclosure is related to illustrative embodiments of an apparatus and method for maintaining carbonation of sparkling beverages, such as sparkling wines, cocktails, and non-alcoholic beverages such as sodas and coffee. A transparent, shatter-resistant, height-adjustable carbonation enclosure is used to contain an opened bottle of a sparkling beverage. An air-tight carbonation cap with a built-in one-way valve is used to re-carbonate the beverage inside the bottle using a pressurized gas source. The base of the carbonation enclosure includes a platform that may be used to adjust the effective height of the enclosure to fit the height of the bottle and provide an air-tight interface between an opening of the bottle and the carbonation cap. The carbonation enclosure further includes a number of openings to open air to prevent pressurization of the carbonation enclosure. Another illustrative embodiment includes a safety enclosure for multiple bottles pressurized directly by conical nozzles.

The present disclosure relates to nanoresonator oscillators or NEMS (nanoelectromechanical system) oscillators. A circuit for measuring the oscillation frequency of a resonator is provided, comprising a first phase-locked feedback loop locking the frequency of a controlled oscillator at the resonant frequency of the resonator, this first loop comprising a first phase comparator. Furthermore, a second feedback loop is provided which searches for and stores the loop phase shift introduced by the resonator and its amplification circuit when they are locked at resonance by the first loop. The first and the second loops operate during a calibration phase. A third self-oscillation loop is set up during an operation phase. It directly links the output of the controllable phase shifter to the input of the resonator. The phase shifter receives the phase-shift control stored by the second loop.

An integral pressurized water nuclear reactor for the production of steam utilizing a helical coil steam generator, a plurality of internal circulation pumps, and an internal control rod drive mechanism structure.

A pressurized water reactor (PWR) includes a vertical cylindrical pressure vessel having a lower portion containing a nuclear reactor core and a vessel head defining an internal pressurizer. A reactor coolant pump (RCP) mounted on the vessel head includes an impeller inside the pressure vessel, a pump motor outside the pressure vessel, and a vertical drive shaft connecting the motor and impeller. The drive shaft does not pass through the internal pressurizer. A central riser may be disposed concentrically inside the pressure vessel, and the RCP impels primary coolant downward into a downcomer annulus between the central ser and the pressure vessel. A steam generator may be disposed in the downcomer annulus and spaced apart from with the impeller by an outlet plenum, A manway may access the outlet plenum so tube plugging can be performed on the steam generator via access through the manway without removing the RCP.

A Compton radiation detection device for determining of Compton radiation of iron, includes a sensor and a filter arrangement. The filter arrangement is adapted such that the radiation emitted by a test object due to Compton scattering passes a nickel layer and an iron layer before being detected by the sensor. A dispersive ionization chamber includes an ionization chamber having a plurality off ionization volumes and a window. Each ionization volume includes an electrode. Radiation can enter through the window. The ionization volumes are arranged in a beam propagation direction behind each other. Radiation having lower energy is statistically absorbed in ionization volumes located more proximal to the window. Radiation having higher energy is statistically absorbed in the ionization volumes located more distal from the window.

A sensor cartridge for supplying a sensor is used. The sensor cartridge includes a casing within which the plurality of sensors can be arranged, and that allows a sample to be introduced to a sensor located at a preset location, and a connection structure. The connection structure electrically connects an external device and a sensor electrode of the sensor located at the preset location. The casing is formed so as to be held by the external device when the external device and the sensor electrode of the sensor are electrically connected via the connection structure.

Methods and systems for measuring the oxidation-reduction potential of a fluid sample are provided. The system includes a test strip with a sample chamber adapted to receive a fluid sample. The sample chamber can be associated with a filter membrane. The test strip also includes a reference cell. The oxidation-reduction potential of a fluid sample placed in the sample chamber can be read by a readout device interconnected to a test lead that is in electrical contact with the sample chamber, and a reference lead that is in electrical contact with the reference cell. Electrical contact between a fluid sample placed in the sample chamber and the reference cell can be established by a bridge. The oxidation-reduction potential may be read as an electrical potential between the test lead and the reference lead of the test strip.

The present liquid sample measuring device comprises a device body on which a biosensor is detachably mounted, a liquid biological sample being dispensed in drops on the biosensor; a measuring section that measures bioinformation from the liquid biological sample; a motion measuring section that measures motion information of the device body; a motion assessment section that assesses the degree of motion of the device body on the basis of the motion information of the device body measured by the motion measuring section; and a measurement controller that adjusts the measurement time for measuring the bioinformation on the basis of the assessment result of the motion assessment section.

A biological sample measuring device including a mounting portion to which a biological sample measuring sensor is mounted, a voltage application section that applies voltage to a counter electrode of the biological sample measuring sensor mounted to the mounting portion, amplifiers that are selectively connected to a working electrode of the biological sample measuring sensor, and a determination section that is connected to these amplifiers. The determination section has a threshold determination section that determines a voltage value obtained by voltage conversion of the current value of the working electrode, a same determination section that selectively connects the amplifiers to the working electrode depending on the determination of the threshold determination section, and identifies the sample deposited on the biological sample measuring sensor from the output of the selected amplifier, and an output section that outputs a measurement value corresponding to the identified sample.

A piston-cylinder assembly, in particular for pneumatic, hydraulic or mechatronic systems, includes a cylinder housing and a piston. The piston is coupled to a piston rod and disposed in the cylinder housing such that it can move along a longitudinal axis. A measuring device for detecting piston or piston rod position is provided inside the cylinder housing.

Disclosed is a pressurized hollow fiber membrane module that exhibits improved durability without deterioration in packing density and permeation flux. The pressurized hollow fiber membrane module includes a composite hollow fiber membrane comprising a tubular braid woven by yarns and a polymer film on the outer surface of the tubular braid. At least one of the yarns comprises a small-fineness filament and a medium-fineness filament. The small-fineness filament comprises first monofilaments having a fineness of 0.01 to 0.4 denier, the medium-fineness filament comprises second monofilaments having a fineness higher than 0.4 and lower than 3, and a ratio of thickness of the tubular braid to outer diameter thereof is 15 to 35%.