Abstract: The present invention obtains a humidity measuring device capable of performing self-diagnosis with high reliability. This humidity measuring device 20 has a diagnosis processing unit 25 for performing self-diagnosis by using gas temperatures and gas humidities before and after a gas in an ambient atmosphere to be measured is heat-controlled. The diagnosis processing unit has a diagnosis start determining unit 26 for determining whether the self-diagnosis can be started on the basis of an exchange state in the ambient atmosphere to be measured and the gas temperature and the gas humidity before the gas in the ambient atmosphere to be measured is heat-controlled, and a diagnosis continuation determining unit 28 for determining whether the self-diagnosis can be continued on the basis of the gas temperature and the gas humidity that are heat-controlled during the self-diagnosis.

Abstract: A MEMS apparatus for thermal energy control including a sensor and an IC chip is provided. The sensor includes a heating device for heating a sensing element and a detecting device for detecting a physical quantity. The IC chip includes a memory unit for storing a target value of the sensing element and a data processing unit for convert the physical quantity to a converted value, where a gap value is defined by subtracting the converted value from the target value. Besides, a control unit of the IC chip sets a parameter value according to the gap value, and a driving unit adjusts a quantity of thermal energy generated by the heating device according to the parameter value to reduce heating time and frequency of the heating device thereby reducing electrical power consumption. The MEMS apparatus is applicable to MEMS sensors requiring controlled operating temperature, such as a gas sensor.

Abstract: The present disclosure is directed to methods and systems for detecting a chemical substance. The methods and systems include using gas-solid phase chemistry to chemically and/or physically modify a substance of interest so that the substance can be vaporized and detected through an analysis of the substance.

Abstract: A sample injector for chromatography 10 where air or moisture can be prevented from getting mixed in when a sample is injected is provided with a syringe 11, a syringe drive unit 13, a turret 12 in which sample vials 4 are placed, a turret drive unit 14, and a control unit 30 that controls the syringe and turret drive units 13 and 14. The configuration includes a housing 15 having a gas introduction port 15a and a gas discharge port 15b that communicate with the inner space, where the syringe 11 sucks a sample from a sample vial 4, the sucked sample is injected into the sample vaporizing chamber 23 in a chromatograph 20, and a predetermined gas is introduced through the gas introduction port 15a, and at the same time, a predetermined gas is discharged through the gas discharge port 15b when a sample is analyzed.

Abstract: Described herein are devices for detecting the concentration of acetone gas. Some gas sensor devices comprise: a gas sensor element that includes a boron-doped the polycrystalline n-type semiconductor epsilon WO3. In addition, multi-detector gas sensor elements are also described including at least one based on the aforementioned gas sensor element where the other elements differ in material properties. In addition, methods for detecting acetone gas based on the disclosed elements are also described.

Abstract: The no ties shoe insole system provides a removable shoe insole having a storage compartment and method for retaining shoelaces therein. The no ties shoe insole may comprise a top portion, bottom portion, lace holes, and a plurality of hook and loop type fasteners strategically placed nearest the lace holes and inside the main shoelace storage compartment. The no ties shoe insole may be opened from the top, thereby revealing a convenient compartment for storing the original shoelaces inside the heel portion of the insole. This allows an efficient way for allowing shoes to have the ability to slide on and off without the need for tying the shoelaces.

Abstract: An apparatus comprising one or more pairs of analyzers measures light absorbing particulates, including black, brown, and ultraviolet light absorbing organic aerosols, suspended in gaseous samples, such as air. One analyzer receives an ambient gas sample, while the other analyzer is coupled to a dilution inlet that mixes ambient gas with a proportion of clean gas, whereby the two received samples have different particulate concentrations. Filters with identical filter areas accumulate particulates as the respective samples flow through with equal flow rate and velocity. An optical source and detector for each filter measures a changing property (e.g. attenuation at one or more wavelengths) as particulates accumulate. A computer uses the differential particulate accumulation from the ambient and diluted samples to compensate for filter loading effects upon the measurement to provide an accurate indication of particulate concentration in the ambient sample.

Abstract: A universal hairpin with a no-slip flocked coating is provided. The legs of the hairpin are covered with flocked coating of various heights for providing no-slip effect for a particular hair type. A hairpin has an interface for attaching a replaceable charm. The interface may use a screw tip, a Velcro™ lock, a clip, a clamp, a ring, a magnet, etc. The universal hairpin may have detachable tips of various shapes for different hair types or different types of hairstyles. The universal hairpin may have an asymmetric shape for more convenient use by a hairstylist and for providing enhanced in-hair hold.

Abstract: A stencil for printing a pattern of deposits on a substrate, wherein the stencil comprises an electroformed metal sheet which has a first layer which includes an apertured region through which a printing medium is applied in a printing operation, and a second layer which overlies a substrate to be printed and includes a plurality of apertures, wherein the apertures of the second layer extend across and beyond the apertured region in the first layer, whereby the second layer includes a plurality of through apertures in registration with the apertured region of the first layer, each having a pattern corresponding to that to be printed on the substrate, and a plurality of blind apertures disposed adjacent and outwardly of the apertured region in the first layer.

Abstract: A gas analyzer is provided. The gas analyzer may include: a tubular housing having a housing wall extending along an axial direction of the tubular housing and surrounding a gas chamber configured to receive a gas to be analyzed therein, an excitation element positioned at a first axial end of the tubular housing and configured to selectively excite gas molecules of a specific type that is to be detected in the gas received in the gas chamber in a time-varying fashion, thereby generating acoustic waves, and a sensor positioned at a second axial end of the tubular housing and configured to detect acoustic waves generated by the excitation element.

Abstract: An internal combustion engine has a humidity sensor that is disposed in an intake passage of the internal combustion engine, a temperature sensor configured to detect an intake air temperature in a position of the humidity sensor, and a controller configured to correct an offset error of the sensor value by adding a correction value to the sensor value. The controller is configured to acquire the intake air temperatures respectively at a plurality of timings in a process of the intake air temperature changing, acquire the sensor values at the respective plurality of timings, calculate values excluding influences of temperature differences of the intake air temperatures from the respective sensor values as humidity index values respectively, and determine a correction value so that a variation degree of the humidity index values becomes small.

Abstract: Traditionally, hair weaves are attached semi-permanently to the user's hair or scalp with glue or sewing causing, at times, irreparable damage to the skin and hair. With the Emergency Hair Weave Kit, one can instantly adopt a completely new and trending hairstyle without the need to significantly damage, alter, or growing one's natural hair. The Emergency Hair Weave Kit is an apparatus that allows hair weaves to be attached and detached without the need for conventional sewing or hair glue. Tracks on the hair are prepared by fastener or snap components which will allow the user to quickly and easily attached the hair. As a result, the user can easily remove and quickly switch out hair weaves, allowing superior style options, flexibility and convenience.

Abstract: In a particulate detection system (10), a control board (911), a high voltage generation board (913) and an isolation transformer (720) are respectively disposed in a first space (921d) and a second space (921e) separated from each other by an inner case (923). When electromagnetic noise is generated in the high voltage generation board (913) and the isolation transformer (720); specifically, at the primary winding of the isolation transformer 720, at the time of switching the primary current supply, the electromagnetic noise is blocked by the inner case (923). This configuration reduces the influence of electromagnetic noise generated in the primary winding on the control board (911).

Abstract: Methods and systems are provided sensing particulate matter by a particulate matter sensor positioned downstream of a diesel particulate filter in an exhaust system. In one example, a method may include increasing an inlet opening of the particulate matter sensor when an exhaust flow rate falls below a threshold to allow more particulates to enter the particulate matter sensor and further includes decreasing the inlet opening when the exhaust flow rate rises above the threshold to reduce the particulates entering the sensor. By adjusting the amount of particulates entering the sensor based on the exhaust rate, and further including a plurality of flow redirectors inside the sensor, the rate of deposition of the sensor and hence the sensitivity of the sensor to the exhaust flow rate may be maintained at a desired level, and independent of the exhaust flow rate.

Abstract: A semiconductor sensor includes a cavity; a fluid connection between the cavity and an inlet area; a pump diaphragm that bounds the cavity; and a measuring diaphragm that bounds the cavity. The fluid connection includes a diffusion channel having multiple openings in the inlet area or multiple diffusion channels having respectively an opening in the inlet area, and it is possible to close at least one of the openings using laser light in order to influence an effective length or an effective cross section of the fluid connection.

Abstract: A tank pressure transmitter with integrated breathing gas analyzer and associated methods are provided. The tank pressure transmitter can include a gas sensor which detects a constituent of a breathing gas. The transmitter is operable to compile a constituent reading from the constituent detected, and communicate this constituent reading wirelessly to a dive computer.

Abstract: A system includes: a NOx sensor; and a controller configured to: increase an amount of O2 in a chamber of the NOx sensor; interpret one or more values of a parameter indicative an amount of O2 and/or NOx measured by the NOx sensor; determine if the one or more values of the parameter exceed a threshold value; and indicate a failure of the NOx sensor responsive to the one or more values of the parameter do not exceed the threshold value.

Abstract: A sinker slider system comprising a slider through which a fishing line passes and an accessory to be coupled and uncoupled to the slider by a gliding motion through a slider glide track and a T track of the accessory. The gliding motion is stopped by releasing a spring-loaded member of the T track into an indent of the slider. The system may further comprise an accessory base for storing the accessory not in use. The accessory base may have a plurality of slots or sections, each of which may have a base glide track for coupling to the T track and a base indent.

Abstract: There is described a shaft shear event detection method. The method comprises obtaining a demodulated waveform of a shaft oscillation wave superimposed on a shaft rotational speed signal, comparing the amplitude to an amplitude threshold, detecting oscillation when the amplitude threshold is exceeded for a plurality of samples, and detecting a shaft shear when oscillation continues for a predetermined time limit.

Abstract: There is provided a system for performing a chromatographic separation of an analyte, methods of using the system to separate at least one component of an analyte and an eluent generator of use in the system. An exemplary system comprises: (a) an eluent generator comprising: (i) a housing configured to be pressurizable by gas, comprising an annular void defined by the housing, and a gas inlet for the gas and a gas outlet for the gas in fluid communication with the annular void; (ii) a membrane permeable to the gas defining an eluent flow channel disposed within the annular void, the eluent flow channel having an eluent precursor fluid inlet and an eluent outlet; (iii) a source of gas in fluidic communication with the gas inlet; (iv) a source of the eluent precursor fluid; and (b) a chromatography column disposed downstream of and in fluidic communication with the eluent outlet.