摘要:
A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described.
摘要:
An acoustic sensor system includes a first plurality of acoustic sensors, and an acoustic transmitter structured to generate acoustic noise to mimic acoustic noise induced by an electrical conductivity fault. A smaller second number of acoustic sensors of the first plurality of acoustic sensors are structured to identify a plurality of locations in an electrical distribution system having a plurality of electrical joints, in order that the smaller second number of acoustic sensors can monitor the plurality of electrical joints of the electrical distribution system.
摘要:
A direct current electrical switching apparatus includes a first contact in electrical communication with first and third arc runners, a second contact in electrical communication with second and fourth arc runners, a movable contact, a first arc chamber including first arc plates having a first width, a second arc chamber including second arc plates having a greater second width, an operating mechanism, and a magnet assembly cooperating with the arc chambers to establish generally oppositely directed magnetic fields. The magnetic fields cause one of a first arc and a second arc to enter one of the arc chambers depending upon a direction of current flow between the contacts. The electrical switching apparatus is rated for a first magnitude of current flowing from the first contact to the second contact and for a greater second magnitude of opposite second current flowing from the second contact to the first contact.
摘要:
An energy content meter can spectroscopically quantify oxidation products after oxidation of a combustible mixture. The measured oxidation product concentrations or mole fractions can be converted to an energy content of the un-oxidized combustible mixture using a conversion factor that relates oxygen consumption during oxidation of the combustible mixture to the energy content of the combustible mixture.
摘要:
Thermodynamic properties of a natural gas stream can be determined in real time utilizing modeling algorithms in conjunction with one or more sensors for quantifying physical and chemical properties of the natural gas. Related techniques, apparatus, systems, and articles are also described.
摘要:
A composition for coating a surface of an electrical contact includes a polymer matrix comprising elastomer, at least one nano-particle material, and crosslinker.
摘要:
A technique for determining a set of calibration parameters for use in a model of a photo-lithographic process is described. In this calibration technique, images of a test pattern that was produced using the photo-lithographic process are used to determine corresponding sets of calibration parameters. These images are associated with at least three different focal planes in an optical system, such as a photo-lithographic system that implements the photo-lithographic process. Moreover, an interpolation function is determined using the sets of calibration parameters. This interpolation function can be used to determine calibration parameters at an arbitrary focal plane in the photo-lithographic system for use in simulations of the photo-lithographic process, where the set of calibration parameters are used in a set of transmission cross coefficients in the model of the photo-lithographic process.
摘要:
A system, method, and computer-readable medium that facilitate dynamic skew avoidance are provided. The disclosed mechanisms advantageously do not require any statistic information regarding which values are skewed in a column on which a query is applied. Query selectivity is evaluated at a check point and thereby facilitates accurate detection of an overloaded processing module. The successful detection of an overloaded processing module causes other processing modules to stop sending more skewed rows to the overloaded processing module. Detection of an overloaded processing module is made when the overloaded processing module has received more rows than a target number of rows. Further, skewed rows that are maintained locally rather than redistributed to a detected processing module may result in more processing modules becoming overloaded. Advantageously, the disclosed mechanisms provide for a final redistribution adjustment to provide for even distribution of rows among all processing modules.
摘要:
Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first analysis method to obtain a first calculation of an analyte concentration in the volume of gas and a second analysis method to obtain a second calculation of the analyte concentration. The second calculation can be promoted as the analyte concentration upon determining that the analyte concentration is out of a first target range for the first analysis method.
摘要:
A computer-implemented user feedback method, system and program product for customizing business suite software that is executable on a computer system. The method includes: acquiring a business logic software function associated with a feedback mechanism in a business suite software user interface for the business suite software; acquiring an existing customization requirement related to the business logic software function and the relationship between the existing customization requirement related to the business logic software function and another existing customization requirement related to the business logic software function; and presenting the acquired existing customization requirement and the relationship between the existing customization requirement related to the business logic software function and the other existing customization requirement related to the business logic software function. The system includes: a business logic software function collector; a customization requirement manager; and a customization requirement presenter.