Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of a filter, said aerosol distributor comprising: a hollow housing having at least one aerosol inlet for admitting an aerosol from an aerosol source into a chamber inside said housing, and a plurality of aerosol outlet holes for releasing the aerosol from the chamber into a gas stream surrounding the housing, wherein said housing has a plate like shape having an upstream surface configured to face an incoming gas stream and a downstream surface configured to face a filter, wherein said housing comprises a plurality of channels extending between channel inlets at the upstream surface and channel outlets at the downstream surface of the housing, such that gas from the gas stream can pass through the housing.

Abstract: A sandbox test system and method for a karst aquifer based on tracer-hydraulic tomography inversion, including a visual sandbox apparatus, a karst conduit, a water flow control apparatus, a horizontal well, a data acquisition apparatus, and a data processing apparatus. The visual sandbox apparatus forms a sand layer packing space. The karst conduit is buried in a sand layer. The water flow control apparatus is a constant water head storage tank. A back plate is provided with a horizontal well mounting hole and tracer adding hole. The horizontal well is mounted in each horizontal well mounting hole. A monitoring well is connected to a seepage pressure sensor or an electrical conductivity sensor. A water injection and pumping well is connected to a peristaltic pump. The electrical conductivity sensor, seepage pressure sensor, and peristaltic pump connect to the data acquisition apparatus. The data acquisition apparatus connects to the data processing apparatus.

Abstract: Automatically pressure testing a frac iron configuration in a wellbore environment including performing a plurality of pressure testing cycles using increasing higher levels of fluid pressure to detect the presence of any leaks in the frac iron at one or more of the pressurization levels.

Abstract: A particulate filter inspection system for a particulate filter includes a compressed air source. A primary conduit, a controller, a probe, and a gauge. The compressed air source is configured to draw air from an air source. The primary conduit is configured to receive the air from the compressed air source. The probe is coupled to the primary conduit and communicable with the controller. The probe is configured to interface with a face of the particulate filter to provide the air to only a sector of the particulate filter. The gauge is configured to determine a pressure of a first portion of the air within the primary conduit when the probe is providing a second portion of the air to only a sector of the face of the particulate filter. The controller is configured to receive the pressure from the gauge and compare the pressure to a target upper pressure.

Abstract: The present invention provides a method for measuring gas permeability of a polymer membrane, for example, by evaluating polymer-structure influence on gas permeability in of a polymer membrane.

Abstract: A face mask or a sample of air-permeable sheet material thereof is moved through a chamber containing a stationary particle-imbedded aerosol. A drive mechanism is preferably operatively connected to a mask holder or supporting shuttle for sliding the shuttle and the mask material along a linear path or a circular path. An aerosol supply and a photodetector are connected to a container that defines the chamber and communicate with the chamber.

Abstract: Wellbore pressure surge simulation systems, methods to perform pressure surge simulations, and methods to configure pressure surge simulation systems are disclosed. A wellbore pressure surge simulation system includes a core chamber configured to store a core sample of a downhole formation inside the core chamber. The wellbore pressure surge simulation system also includes a fluid chamber that is fluidly connected to the core chamber and having a first compartment that is configured to store a first fluid and a second compartment that is configured to store a second fluid. The wellbore pressure surge simulation system further includes a wellbore chamber positioned adjacent to the core chamber and configured to store the first fluid. The wellbore pressure surge simulation system further includes a flow restrictor configured to restrict fluid flow from the wellbore chamber.

Abstract: A method for detecting a leak, having at least the following steps: a) capturing a flow volume of a liquid through a liquid line during a multiplicity of liquid removal processes; b) comparing the flow volumes of the liquid in the respective liquid removal processes with an alarm value; c) outputting an alarm signal if the flow volume of the liquid in a liquid removal process exceeds the alarm value; d) adapting the alarm value on the basis of a frequency of the occurrence of the flow volumes of the liquid in the liquid removal processes above an adaptation value.

Abstract: Techniques for implementing and/or operating a system, which includes a pipe segment and a test head assembly. The test head includes an end container, in which an end of tubing of the pipe segment is disposed within the end container, an annulus seal implemented at least in part by solidifying fluid hardening material that is flowed into the end container to facilitate securing the test head assembly to the pipe segment and sealing an opening end of a tubing annulus of the pipe segment within the test head assembly, and a fluid port fluidly connected to a fluid conduit defined within the tubing annulus of the pipe segment to enable integrity of the tubing to be tested at least in part by flowing a test fluid into the fluid conduit defined in the tubing annulus, extracting fluid from the fluid conduit defined in the tubing annulus, or both.

Abstract: Accelerometer including a decoupling structure for fixing the accelerometer on a package and a MEMS sensor chip for measuring an acceleration. The chip is supported by the decoupling structure and includes a sensor wafer layer of a semiconductor material. The decoupling structure forms a bottom portion for fixing the decoupling structure on the package and a top portion fixed to the sensor wafer layer so that the chip is arranged above the decoupling structure. A width of the top portion in a planar direction is smaller than a width of the bottom portion and/or the sensor wafer layer in the planar direction. The decoupling structure is made of the same semiconductor material as the sensor wafer layer. The centre point of the top portion is arranged in a central region of the bottom portion. The chip includes a hermetically closed cavity which includes a seismic mass of the chip.

Abstract: A reprocessing system for balloon endoscopes including an endoscope reprocessing system including cleaning functionality and disinfection functionality, and a leak testing device including inflation and deflation functionality, the inflation and deflation functionality being operative to selectably inflate and deflate a balloon of a balloon endoscope.

Abstract: A single-point dual sensor-based leakage method and system for a gas-liquid stratified flow pipeline includes a single-point dual sensor-based leakage formula for a pipeline to be detected; installing two sensors at the same point of one end of the pipeline, a signal collected by the bottom sensor being an acoustic wave propagated by liquid in the pipeline, and a signal collected by the top sensor being an acoustic wave propagated by gas in the pipeline; processing the two acoustic waves to obtain a time difference; and substituting the acoustic velocity in a gas and the time difference into the single-point dual sensor-based leakage formula. The installation of sensors at two ends of a pipeline, avoids missing detection of leakage acoustic wave signals by a single sensor, reduces the number of installed sensors, and is low in cost, high in safety and strong in applicability to a gas-liquid stratified flow pipeline.

Abstract: Techniques for implementing a system that includes a pipe segment and a monitoring apparatus. The pipe segment includes tubing that defines a pipe bore and a fluid conduit within a tubing annulus of the pipe segment. The monitoring apparatus includes a plurality of bore sensors fluidly connected to the pipe bore of the pipe segment, an annulus sensor fluidly connected to the fluid conduit defined within the tubing annulus of the pipe segment, and a control sub-system. The control sub-system determines whether a breach is present in the tubing of the pipe segment based at least in part on first sensor data determined by the bore sensors to be indicative of a bore fluid parameter present within the pipe bore of the pipe segment and second sensor data determined by the annulus sensor to be indicative of an annulus fluid parameter present within the tubing annulus of the pipe segment.

Abstract: An image forming apparatus comprises a tray, a conveyor, a detector and a movement mechanism. The tray accommodates at least one document. The conveyor conveys the document placed on the tray. The detector detects that the document is placed on the tray. The movement mechanism moves the tray from a first position to a second position closer to the conveyor than the first position based on the detection that the document is placed on the tray, and after moving the tray from the first position to the second position, moves the tray to the first position based on a setting of a mixed stacking mode in which mixing of the documents with different sizes on the tray is permitted.

Abstract: A system and method for separating the functions of a liquid chromatography (LC) system into physically separate systems that allow for a more versatile LC system, wherein an LC device provides column 50 a liquid solvent, a sample, and a pump and injector that pushes the sample in the solvent to an output port, and providing an attachable module containing a module input port, a column, a heater for the column, and at least one detector for on-column detection, then attaching the module to the LC device using a press-fit connection that enables the sample in the solvent to be pumped through the column to the at least one detector in order to separate, identify and quantify substances in the sample and transmit results from the at least one detector to the LC system for collection and analysis.

Abstract: A method of calculating blast injury metrics in a weapon training/IED blast scene can include: reconstructing topological layout of the scene having at least one real subject and a blast source; obtaining anthropometric and posture data for each real subject; obtaining anatomical soldier model for each real subject; identifying real position of at least one real pressure sensor on each soldier during a blast; positioning a virtual sensor on each anatomical soldier model to correspond with real pressure sensor on the real subject; calculating weapon signature of the blast source, the weapon signature including pressure versus time for a blast from the blast source; generating simulated pressure traces on each anatomical soldier model at east virtual pressure sensor; calculating blast injury metrics for the at least one real subject; and generating a report that includes the blast injury metrics for the at least one real subject.

Abstract: A paper ejection device includes: an ejection portion that ejects sheets of paper; a housing portion that houses the ejected sheets of paper in a sequentially stacked state; and a guiding portion that guides the sheets of paper, before being ejected, to the ejection portion while curving the sheets of paper. The housing portion is adjustable to plural angles including at least an angle at which the ejected sheets of paper are housed while being curved in a direction opposite to a direction in which the sheets of paper have been curved by the guiding portion.

Abstract: The aim of the invention is to economically produce a pressure measuring sensor element, and relates, according to one aspect, to a method for producing a pressure sensor measuring element for a pressure sensor which comprises at least one membrane and a covering protecting the membrane, the pressure sensor element being produced in a layer-by-layer generative production method. This makes it possible to, for example, easily construct a combination sensor for detecting pressure and an additional parameter. It is also possible to structures for reinforcement or for influencing resonant frequency or for influencing heat conduction.

Abstract: In some embodiments, a system includes a housing having a cavity defined therein for holding a test sample, a first inlet in fluid communication with the cavity to deliver fluid to the test sample, a second inlet in fluid communication with the cavity to deliver fluid to the test sample, the first inlet configured to deliver fluid to the test sample in a direction substantially perpendicular to a direction that the second inlet is configured to deliver fluid to the test sample, an outlet in fluid communication with the cavity to receive fluid from the test sample, and a force applicator configured to apply compressive force to the test sample within the cavity. The force applicator forms a seal with the housing while applying compressive force to the test sample. The system also comprises at least one sensor configured to, while fluid flows from at least one of the inlets through the test sample to the outlet, determine a fluid characteristic, a test sample characteristic, or any combination thereof.

Abstract: An apparatus for evaluating gas barrier properties, a support having a polymer for supporting a sample, a chamber on a permeation side, and a detection unit, the support being joined to the opening of the chamber on a permeation side; in which a polymer film is provided between the support and a sample; a chamber on a supply side is provided, being disposed so as to be closably attachable to the sample and able to go up and down; and an external chamber covers a region interposed between the polymer film and the support; and a method of evaluating gas barrier properties using the same.