Abstract: Flow sensors are provided that can monitor flow conditions. The flow sensor includes a gauge that provides a first level of information about flow through the sensor, and an indicator associated with the gauge that can provided a second level of information about flow through the sensor. The indicator might be in the form of a dial that can rotate about the gauge and might include a locked position for monitoring flow and an unlocked position to rotate the dial about the gauge to reposition the dial. A twisted shaft with varying twist rate is provided to convert linear motion to rotational motion for the gauge.

Abstract: A workpiece diameter measurement method includes: detecting positions of a probe while relatively rotating an uncalibrated standard and a detector around a rotation center in a state where the probe is in contact with a circumferential face of the standard from one side in a displacement direction of the probe, detecting the positions of the probe while relatively rotating the standard and the detector around the rotation center in a state where the probe is in contact with the circumferential face from another side in the displacement direction, calculating the position of the rotation center based on the detected positions, relatively rotating a workpiece and the detector around the rotation center in a state where the probe is in contact with the workpiece from the other side, and calculating a diameter of a circumferential face of the workpiece.

Abstract: A method for identifying in situ presence of a hydrocarbon reservoir or of a pipeline leakage is disclosed. The method can include obtaining a sample from an area of interest, such as a sediment sample or water column sample near a hydrocarbon seep or near an offshore pipeline; analyzing the sample to detect nucleic acid, protein or metabolite signatures that are indicative of cold-shock response; identifying the relative abundance of the cold-shock signatures present in the sample in comparison to the surrounding environment.

Abstract: A flowmeter (200) is provided having a flow inlet (210) and a flow outlet (210?). A first conduit (208A) has an inlet leg (212A) fluidly coupled to a central conduit portion (212C), wherein the central conduit portion (212C) is further fluidly coupled to an outlet leg (212?A). A second conduit (208B) has an inlet leg (212B) fluidly coupled to a central conduit portion (212?C), wherein the central conduit portion (212?C) is further fluidly coupled to an outlet leg (212?B). The flow inlet (210) is fluidly coupled to a first end of the first conduit (208A) and a first end of the second conduit (208B), and the flow outlet (210?) is fluidly coupled to a second end of the first conduit (208A) and a second end of the second conduit (208B). A manifold (206) is fluidly coupled to the inlet legs (212A, 212B) and the outlet legs (212?A, 212?B). A driver (214) is at least partially coupled to the manifold, wherein the driver (214) is operable to vibrate the first and second conduits (208A, 208B).

Abstract: A method for determining a corrected axial displacement parameter of a conduit inspection tool, in particular a downhole inspection tool, during transit of the tool axially along a conduit is disclosed. The tool used in the method has an imaging device and may be attached to a control module with a connecting line. The method comprises obtaining successive axially overlapping images of an internal wall of the conduit, determining, from the images, an observed axial displacement parameter of the tool as a function of transit time, identifying, in the images, a plurality of reference points, determining an estimated axial displacement parameter of the tool over an of transit time between successive reference points, and computing the corrected axial displacement parameter of the tool by applying a correction factor to the observed axial velocity of the tool.

Abstract: A method comprises positioning a receiver in a borehole and determining an offset acoustic waveform at a target point. The method includes generating a reverse time sequence waveform of the determined offset acoustic waveform and generating, by a transmitter, an acoustic pulse based on the reverse time sequence waveform. The method includes detecting, by the receiver, an acoustic response to the acoustic pulse.

Abstract: In order for the handling of a pipette to be improved, the pipettes (1) according to the invention and a method according to the invention for setting a volume of a pipette to be pipetted are proposed. In the case of the pipette (1) it is provided that the activation element (7) for activating the ejection mechanism (6) for ejecting a pipette tip forms a conduit (9) for the pipetting button (3). On account thereof, an activation face (10) of the activation element (7) is enlarged in such a manner that the handling of the ejection mechanism (6) of the pipette (1) is in particular simplified and is particularly comfortable. It is furthermore also proposed that the activation element (7) is coupled to the volume adjustment mechanism (11) of the pipette, and the adjustment of the volume to be pipetted by the pipette (1) is performed with the aid of a movement of the activation element (7)(FIG. 4).

Abstract: A method for determining interfacial tension of a hydrocarbon in a brine fluid, the method including injecting a first brine fluid into a test cell, the first brine fluid having an initial ionic composition, injecting a hydrocarbon fluid into the test cell, contacting the hydrocarbon fluid with the first brine fluid, forming a droplet, measuring the interfacial tension of the hydrocarbon fluid in contact with the first brine fluid, at least partially displacing the first brine fluid with an inert gas, measuring a ionic composition salinity of the displaced first brine fluid in an ionic chromatograph, and comparing the measured ionic composition salinity to the initial ionic composition.

Abstract: A case airtightness evaluation method evaluates airtightness of a case mounted at a vehicle. A pressure measuring step of the evaluation method includes pressurizing or depressurizing air in the case, allowing pressure in the case to stabilize, and then measuring a pressure change in the case. During the measurement of the pressure change, a deformation amount acquiring step acquires a deformation amount of a specific location of the case. Based on the acquired deformation amount, a correcting step corrects the measured pressure change. Based on the corrected pressure change, an evaluating step evaluates airtightness of the case.

Abstract: The present invention relates to an apparatus (2) comprising a connector (4), a baby bottle (6) which can be coupled thereto having a bottle body (8) and a bottle base (10), and a sensor unit (34) arranged in the bottle base (10) for determining the filling quantity of milk in the baby bottle (6). An object of the present invention is to improve handling and maintenance of the apparatus, as well as determining the content quantity. It is characterized in that the bottle base (10) is releasably attachable to the bottle body (8).

Abstract: A gas inspection method includes: inputting a signal for opening a secondary valve; measuring, by a secondary pressure gauge, a pressure P on a downstream side of an orifice of a flow rate controller at a time point when a period t elapses from the input of the signal for opening the secondary valve; measuring, by the secondary pressure gauge, a standard deviation ? of the pressure P on the downstream side of the orifice of the flow rate controller at the time point when the period t elapses from the input of the signal for opening the secondary valve; and determining whether or not an open degree of the secondary valve is normal by comparing the pressure P and the standard deviation ? of the pressure P with a threshold value P0 of the pressure and a threshold value ?0 of the standard deviation of the pressure.

Abstract: The present invention discloses a simulation device for a preferential flow of a fissured-porous dual-permeability media and an experimental method, and belongs to the technical field of geological engineering. The simulation device comprises a support. The support is detachably connected with a transparent container. The interior of the transparent container is filled with a fissured-porous dual-permeability media experimental model. The top of the transparent container is open. A spraying device is arranged above the transparent container. Liquid rapid outflow ports are formed in the bottom of the transparent container and are connected with a liquid collection device. The present invention further discloses an experimental method of the simulation device and a manufacturing method of the fissured-porous dual-permeability media experimental model. The simulation device of the present invention can highlight and enhance the preferential flow experiment effect.

Abstract: An adapter for use in monitoring the deterioration of an oil insulated transformer due to pyrolysis that allows for an alarm to be generated at the desired ppm values is provided. The adapter is configured to sample the headspace of the main transformer tank as well as the adjacent compartments of a transformer and pass it over a common sensor to check for gases indicative of pyrolysis. During this constant monitoring process, the device will alert the end user when there is an increase in monitors gases. This will allow the owner to take the transformer off line and perform other diagnostic tests to determine the extent of damage to the equipment.

Abstract: A protection device for an oil-smoke sensor has a protection housing having two ends and an inner chamber; the first end having a first opening for receiving a probe of the oil-smoke sensor and in communication with the inner chamber; a second opening is disposed on the second end which is opposite to the first opening and in communication with the inner chamber. Because the probe is sealing mounted in the first opening, the probe will not be directly exposed in oil-smoke flow. The protective device is mounted such that the axial direction of the protective device is vertical to the oil-smoke flow direction. Therefore, the inner chamber of the protection housing has a pressure with respect to the oil-smoke flow that tangentially flows at a high speed, and the oil-smoke can only be diffused into the protection housing, thus, the probe is much less likely to be contaminated.

Abstract: Methods and systems for sensing a fluid level associated with an engine are described. The method comprises generating an input signal and applying the input signal to a resistive portion and a capacitive portion of a fluid level sensing device, measuring a first varying output of the resistive portion of the fluid level sensing device through a first channel of a controller of the engine, measuring a second varying output of the capacitive portion of the fluid level sensing device through a second channel of the controller of the engine, and translating at least one of the first varying output and the second varying output into a level of fluid and outputting the level of fluid.

Abstract: Devices and methods are provided for breath gas analysis when determining the difference in the concentrations of at least one gas in the exhaled breathing air on the one hand and in the ambient air on the other hand. The device may include at least one gas sensor, by means of which the concentration of a gas can be determined, and a line system, through whose lines the exhaled air to be examined, the ambient air and a calibrating gas can be selectively pumped to the gas sensor. The method may include feeding ambient air; feeding calibrating gas to the gas sensor; feeding exhaled air to the gas sensor; feeding calibrating gas to the gas sensor again; and feeding exhaled air to the gas sensor again.

Abstract: A sample collection device is composed of a conductive polymer. The conductive polymer includes a mixture of carbon nanotubes and a polymer. The sample collection device has a hole at a tip of the sample collection device with the hole having a size ranging from about 0.15 mm to about 0.25 mm.

Abstract: An object of the present invention is to provide a temperature sensing material that changes a color density continuously with the lapse of time at a temperature not lower or higher than a predetermined temperature and a temperature deviation time estimating system using it. In order to achieve the above object, the temperature sensing material according to the present invention is a temperature sensing material having a structure of dispersing a temperature indicating material that changes color by crystallization in a dispersion medium and is characterized in that an average particle size of the temperature indicating material is not larger than a resolution when observed and a volume fraction of the temperature indicating material to the temperature sensing material is not less than 5% to less than 90%.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting seepage of hydrocarbons in subterranean zones. In one aspect, a method includes detecting hydrocarbon seepage at multiple different sampling depths from a surface in a surveyed geographic region, comparing each of the hydrocarbon seepage at the multiple different sampling depths, wherein hydrocarbon seepage at a reference depth is known, and determining hydrocarbon seepage through the surveyed geographic region based on a result of the comparison.

Abstract: An aspect ratio flow metering device may comprise a concentrate inlet portion, one or more restricted flow portions of tubing fluidly connected to the concentrate inlet portion, and a metered concentrate outlet portion fluidly connected to the one or more restricted flow portion of tubing. The narrowest part of the one or more restricted flow portions of tubing may each have a length (RL): inner diameter (RID) ratio of at least 10:1. The metered concentrate outlet portion may have an inner diameter (OID) greater than RID. The concentrate inlet portion may have an inner diameter (IID) greater than RID. The aspect ratio flow metering device may be structurally configured to limit flow of a concentrate into a hydrodynamic mixing apparatus. Also disclosed are methods for using the aspect ratio flow metering device to mix fluids.