摘要:
A method for operating an MOX gas sensor is provided for measuring a gas concentration present in the environment. The MOX sensor is heated by an electric current source, and an electric output quantity of the sensor representing a gas concentration being detected and analyzed is generated. The MOX sensor is discontinuously heated at discrete measuring times by the electric current source, and a measured value representing the gas concentration is generated from the electric output quantity of the sensor detected during the discrete measuring times. A device for operating the MOX gas sensor is additionally is provided.
摘要:
An advertisement device for direct mail delivery from a sender to a recipient. The advertisement device includes a synthetic panel having a front side, a back side, an advertisement on at least one of the front side and the back side, and a thickness sufficient to maintain integrity of the synthetic panel. The advertisement device also includes a response panel for responding to the advertisement. The response panel has information responsive to the advertisement thereon and is adapted to receive delivery information thereon. The response panel is attachable to the synthetic panel for direct mail delivery to the recipient with the synthetic panel, is detachable from the synthetic panel, and is adapted for direct mail delivery from the recipient to the sender.
摘要:
A pulverizer includes a cutting rotor with a multiplicity of cutting blades, a cutting stator surrounding the cutting rotor with a plurality of stator blades, a milling stock inlet for the milling stock feed and a discharge screen in direction of rotation of the cutting rotor located after the milling stock inlet, wherein all stator blades in direction of rotation of the cutting rotor are arranged between the milling stock inlet and the discharge screen. Furthermore, an operating method for a pulverizer as described above is also contemplated.
摘要:
The invention provides a novel additive for improved analysis by mass spectrometry. More specifically, ascorbic acid has been found to reduce or eliminate the presence of adducts commonly present in mass spectra. The improved processes and compositions of the invention allow for increased accuracy, sensitivity and throughput for samples analyzed by mass spectrometry.
摘要:
Substrates, methods for making the substrates and methods for using the substrates for mass spectrometry analysis are provided. Methods include coating a conductive substrate having a hydrophilic surface (suitable for mass spectrometric analysis) with an uncharged hydrophobic surface, masking a subset of regions on the hydrophobic surface with an insulator, and applying an oxidizing force to the unmasked regions of the hydrophobic surface to render the unmasked regions hydrophilic.
摘要:
This invention relates to an advertisement device for direct mailing to a recipient, and in particular to an advertisement device for direct mail delivery to a recipient. The advertisement device has a synthetic panel with a back side and a front side, at least one of the back side and the front side adapted to receive delivery information, and a thickness sufficient to maintain integrity of the synthetic panel. A method of delivering an advertisement device to a recipient having a synthetic panel, having a back side, a front side adapted to receive delivery information, and a thickness sufficient to maintain integrity of the synthetic panel is also provided. Also provided is an advertisement device system for direct mail delivery to a recipient, having a synthetic panel, with a back side, a front side adapted to receive delivery information, and a thickness sufficient to maintain integrity of the synthetic panel; and means for applying delivery information. The device may also include an anti-microbial agent to at least partially inhibit the growth or accumulation of undesirable biological agents thereon.
摘要:
An open system is provided for performing a submicroliter reaction. An open system can contain a solid support having a target site for performing the reaction; a liquid dispensing system such as a nanoliter dispensing pipette for dispensing a submicroliter amount of a liquid to the target site; a temperature controlling device for regulating the temperature of the support; and means for controlling the amount of liquid dispensed, which corresponds to the amount of liquid that evaporates from the target site. Also provided is an open system, including a solid support having a target site; a liquid dispensing system, which can dispense a liquid to the target site; a temperature controlling system, which regulates the temperature of the solid support; and an interface, which regulates an amount of liquid dispensed from the liquid dispensing system. Also provided is a method for performing a reaction in a submicroliter volume in an unsealed environment by dispensing a submicroliter volume of liquid onto the surface of a support; monitoring the temperature of the support; monitoring an amount or rate of evaporation of the liquid; and dispensing to the surface of the support a further amount of the liquid, which corresponds to the amount lost from the support due to evaporation, thereby maintaining the reaction volume at a predetermined volume throughout the course of the reaction. A method also is provided for maintaining a volume of a reaction mixture, which can be one of a plurality of reaction mixtures, on a solid support in an unsealed environment by monitoring the rate of evaporation of a liquid from the reaction mixture; and dispensing into the reaction mixture an amount of liquid that corresponds to the amount that evaporates.
摘要:
The invention provides a novel additive for improved analysis by mass spectrometry. More specifically, ascorbic acid has been found to reduce or eliminate the presence of adducts commonly present in mass spectra. The improved processes and compositions of the invention allow for increased accuracy, sensitivity and throughput for samples analyzed by mass spectrometry.
摘要:
The invention provides a novel additive for improved analysis by mass spectrometry. More specifically, ascorbic acid has been found to reduce or eliminate the presence of adducts commonly present in mass spectra. The improved processes and compositions of the invention allow for increased accuracy, sensitivity and throughput for samples analyzed by mass spectrometry.
摘要:
Selecting channels of a data set for visibility. A first user input specifying a data set may be received. A plurality of channels of the data set may be displayed in a first portion of a display in response to the first user input. A second user input selecting one or more channels of the data set in the first portion of the display may be received. The second user input may specify that the first one or more channels are always visible in the first portion of the display. The one or more channels may always be visible in the first portion of the display in response to the second user input.