Abstract: A vacuum-integrated trash bin. The vacuum-integrated trash bin includes a housing dimensioned to be removably insertable into a trash bin to form a seal. The housing includes a plurality of apertures in the sidewalls of the housing and a port at the bottom surface of the housing. The port is positioned above a vacuum pump, such that actuation of the vacuum pump sucks air through the apertures of the housing to conform a trash bag placed within the housing to the shape of the housing, thereby increasing an internal volume of the trash bag.

Abstract: A forklift mast warning alarm including a horn bar configured to be movably attached to a contact bar. A plurality of pressure sensors vertically affixed along a lower surface of the horn bar, wherein the sensors keep the horn bar from contacting the contact bar until pressure is applied. At least one electrical contract movably disposed in the horn bar. A spring disposed around the electrical contacts for allowing the electrical contacts to move bias the horn bar away from the contact bar until pressure is added. A noise making device attached to the horn bar. Horn circuitry configured to activate the noise making device when the at least one electrical contact disposed on the underside of the horn bar comes in contact with the at least one electrical contact disposed along contact bar.

Abstract: The present inventive concepts relate to determining an isotope ratio using mass spectrometry. Mass spectra of ions are obtained by generating ions, guiding the ions through a device having a mass transfer function that varies with ion current, providing at least some of the ions to a mass analyser and obtaining a mass spectrum of the ions and determining the ion current of the ions provided to the mass analyser. An isotope ratio of the ions is determined for each mass spectrum. Using the determined isotope ratio and determined ion current for each mass spectrum, a calibration relationship is determined that characterises the variation of the determined isotope ratios and the measured ion currents across the mass spectra. Then, a measured isotope ratio obtained at a determined ion current is adjusted using the calibration relationship to adjust the measured isotope ratio to an adjusted isotope ratio corresponding to a selected ion current.

Abstract: A forklift mast warning alarm including a horn bar configured to be movably attached to a contact bar. A plurality of pressure sensors vertically affixed along a lower surface of the horn bar, wherein the sensors keep the horn bar from contacting the contact bar until pressure is applied. At least one electrical contract movably disposed in the horn bar. A spring disposed around the electrical contacts for allowing the electrical contacts to move bias the horn bar away from the contact bar until pressure is added. A noise making device attached to the horn bar. Horn circuitry configured to activate the noise making device when the at least one electrical contact disposed on the underside of the horn bar comes in contact with the at least one electrical contact disposed along contact bar.

Abstract: A vacuum-integrated trash bin. The vacuum-integrated trash bin includes a housing dimensioned to be removably insertable into a trash bin to form a seal. The housing includes a plurality of apertures in the sidewalls of the housing and a port at the bottom surface of the housing. The port is positioned above a vacuum pump, such that actuation of the vacuum pump sucks air through the apertures of the housing to conform a trash bag placed within the housing to the shape of the housing, thereby increasing an internal volume of the trash bag.

Abstract: A system and method is provided for enhancing hydrocarbon production. The method and system involve geochemistry analysis and include multiply substituted isotopologue and position specific isotope geochemistry for at least one hydrocarbon compound of interest associated with free gas and sorbed gas. The method and system involve using clumped isotope and position specific isotope signatures to enhance monitoring of well and stimulation performance.

Abstract: The present inventive concepts relate to determining an isotope ratio using mass spectrometry. Mass spectra of ions are obtained by generating ions, guiding the ions through a device having a mass transfer function that varies with ion current, providing at least some of the ions to a mass analyser and obtaining a mass spectrum of the ions and determining the ion current of the ions provided to the mass analyser. An isotope ratio of the ions is determined for each mass spectrum. Using the determined isotope ratio and determined ion current for each mass spectrum, a calibration relationship is determined that characterises the variation of the determined isotope ratios and the measured ion currents across the mass spectra. Then, a measured isotope ratio obtained at a determined ion current is adjusted using the calibration relationship to adjust the measured isotope ratio to an adjusted isotope ratio corresponding to a selected ion current.

Abstract: The present inventive concepts relate to determining an isotope ratio using mass spectrometry. Mass spectra of ions are obtained by generating ions, guiding the ions through a device having a mass transfer function that varies with ion current, providing at least some of the ions to a mass analyzer and obtaining a mass spectrum of the ions and determining the ion current of the ions provided to the mass analyzer. An isotope ratio of the ions is determined for each mass spectrum. Using the determined isotope ratio and determined ion current for each mass spectrum, a calibration relationship is determined that characterizes the variation of the determined isotope ratios and the measured ion currents across the mass spectra. Then, a measured isotope ratio obtained at a determined ion current is adjusted using the calibration relationship to adjust the measured isotope ratio to an adjusted isotope ratio corresponding to a selected ion current.

Abstract: Isotope ratio mass spectrometry is effected by: injecting a sample for analysis into a gas chromatography column; directing an effluent from the gas chromatography column to a switching arrangement; and selecting a configuration of the switching arrangement, such that: in a first mode, the effluent from the gas chromatography column is provided as an input to a peak broadener; and in a second mode, an effluent from the peak broadener is provided to a mass spectrometer for isotope ratio mass spectrometry without the effluent from the gas chromatography column being provided as an input to the peak broadener.

Abstract: In various embodiments, an electrode has a shaft extending from an electrode head and a cooling passage extending from an open end disposed at an attachment end of the shaft to a closed end disposed within the electrode head. The electrode head has an approximately teardrop shape with a smoothly rounded outer contour.

Abstract: A system and method is provided for enhancing hydrocarbon production. The method and system involve geochemistry analysis and include multiply substituted isotopologue and position specific isotope geochemistry for at least one hydrocarbon compound of interest associated with free gas and sorbed gas. The method and system involve using clumped isotope and position specific isotope signatures to enhance monitoring of well and stimulation performance.

Abstract: An electrode comprises a shaft extending from an electrode head. A cooling passage extends from an open end disposed at an attachment end of the shaft to a closed end, which is disposed within the electrode head. The electrode head is formed to have approximately a teardrop shape, which may be formed according to a radial profile rotated about a centerline of the shaft, where the radial profile has a center disposed within the electrode head and on the centerline. The radial profile may exhibit a single maximum within a middle portion of the radial profile. Alternatively, or in addition, the middle portion of the radial profile may be negatively curved.

Abstract: In various embodiments, an electrode has a shaft extending from an electrode head and a cooling passage extending from an open end disposed at an attachment end of the shaft to a closed end disposed within the electrode head.

Abstract: An electrode comprises a shaft extending from an electrode head. A cooling passage extends from an open end disposed at an attachment end of the shaft to a closed end, which is disposed within the electrode head. The electrode head is formed to have approximately a teardrop shape, which may be formed according to a radial profile rotated about a centerline of the shaft, where the radial profile has a center disposed within the electrode head and on the centerline. The radial profile may exhibit a single maximum within a middle portion of the radial profile. Alternatively, or in addition, the middle portion of the radial profile may be negatively curved.