摘要:
The present invention relates generally to separation of ions based on their transport properties. More particularly, the invention relates to separation of ionic mixtures and characterization of ions in gases using higher-order differential ion mobility spectrometry (HODIMS) enabled by asymmetric waveforms of fundamentally new types. The invention discloses a method and apparatus for separation of ionic mixtures and characterization, identification, or quantification of ions in a gas based substantially on the terms of third or higher order in a series expansion of ion mobility as a function of electric field intensity. This is achieved using a periodic, time-dependent electric field with novel waveform profiles that cancel or substantially reduce the contributions to time-averaged ion motion of the leading n (where n≧2) terms of that expansion, thereby achieving ion separations based substantially on the (n+1)th term. Separations using HODIMS with different n are expected to be highly orthogonal, enabling multidimensional separations employing HODIMS analyzers of different orders. The expected high orthogonality between HODIMS and mass spectrometry or ion mobility spectrometry would make HODIMS/MS and HODIMS/IMS combinations powerful analytical tools of broad utility.
摘要:
A method for predicting the elution time of a peptide in chromatographic and electrophoretic separations by first providing a data set of known elution times of known peptides, then creating a plurality of vectors, each vector having a plurality of dimensions, and each dimension representing positional information about at least a portion of the amino acids present in the known peptides. A hypothetical vector is then created by assigning dimensional values for at least one hypothetical peptide, and a predicted elution time for the hypothetical vector is created by performing at least one multivariate regression fitting the hypothetical peptide to the plurality of vectors. Preferably, the multivariate regression is accomplished by the use of an artificial neural network and the elution times are first normalized using linear regression.
摘要:
A tile tray (1) including a generally planar base (2) and two or more retaining members (5) adapted to locate and retain a tile (7) to the base. The tile tray (1) further includes a coupling means for connecting two or more of the tile trays in a substantially aligned configuration.
摘要:
The invention facilitates the computation of expected approval rates based on historic transaction data relating to transaction classes, approved transactions and declined transactions. The invention provides a system and method by which a program administrator for a company may model varying client-imposed limit scenarios in order to determine one or more optimal monthly and/or transactional spending limits. Further, the present invention provides a means for setting varying monthly and/or transaction spending limits for purchases from any number of industries. Providing card members with information regarding optimal spending limits reduces the occurrences of declined credit transactions. A program administrator may also utilize the present invention to provide any number of limit scenarios in order to persuade a card member to increase their client-imposed credit limit to an optimal level thereby reducing the card member's inconvenience caused by declined purchase transactions while recapturing lost revenues by the card issuer.
摘要:
The invention facilitates the compilation of client-imposed charge or credit limit reports based on declined purchase and/or payment transactions. The invention provides a system and method by which an account manager for a financial institution and/or a client program administrator company may perform analysis of spending patterns for cardmembers in order to determine an optimal client-imposed credit limit in order to reduce the occurrences of declined charge or credit transactions. An account manager for a financial institution and/or a client program administrator may use the limits report to persuade a cardmember to increase the client-imposed credit limit to a recommended level, thereby reducing the cardmember's inconvenience cased by declined purchase transactions while recapturing lost revenues by the card issuer also resulting from declined purchase transactions.
摘要:
Communications device identification methods, communications methods, wireless communications readers, wireless communications systems, and articles of manufacture are described. In one aspect, a communications device identification method includes providing identification information regarding a group of wireless identification devices within a wireless communications range of a reader, using the provided identification information, selecting one of a plurality of different search procedures for identifying unidentified ones of the wireless identification devices within the wireless communications range, and identifying at least some of the unidentified ones of the wireless identification devices using the selected one of the search procedures.
摘要:
A utility knife includes a body having a groove adapted to receive a blade. The groove has a plurality of tabs defined on at least a first side. The utility knife also includes a slide assembly device positioned in the body for sliding movement with respect to the body. The slide assembly device includes a housing with a first engaging member having a first protrusion and a second engaging member having a second protrusion releasably engaged with the tabs. The slide assembly device also includes a rocker attached to the housing that is operatively connected to at least one of the engaging members. The rocker is operable for disengaging the first protrusion or second protrusion with respect to the tabs. Disengaging one of the first and second protrusions by the rocker allows sliding movement of the slide assembly device with respect to the body.
摘要:
The invention facilitates the computation of expected approval rates based on historic transaction data relating to transaction classes, approved transactions and declined transactions. The invention provides a system and method by which a program administrator for a company may model varying client-imposed limit scenarios in order to determine one or more optimal monthly and/or transactional spending limits. Further, the present invention provides a means for setting varying monthly and/or transaction spending limits for purchases from any number of industries. Providing card members with information regarding optimal spending limits reduces the occurrences of declined credit transactions. A program administrator may also utilize the present invention to provide any number of limit scenarios in order to persuade a card member to increase their client-imposed credit limit to an optimal level thereby reducing the card member's inconvenience caused by declined purchase transactions while recapturing lost revenues by the card issuer.
摘要:
The invention describes a device for separating dust and dirt out of flowing media. A curved flow path (1) is imposed on the flow (21), and heavy foreign bodies are separated out of the main flow by centrifugal force. The partial stream required to carry away the foreign bodies is aftertreated in a filter (11) and returned in purified form. Unlike with conventional filters, which have to process the entire flow of media, pressure losses during the separation of dust are minimized, and on the other hand no medium is lost for removing the dust load.
摘要:
The present invention relates to a device for separating dirt and debris in flowing media by making use of centrifugal forces, said device comprising a separation chamber (1), and a dirt collection chamber (3) connected with said separation chamber (1) by at least one dirt discharge opening (2). Arranged in the region of dirt discharge opening (2) within dirt collection chamber (3) are one or more flow guide elements (4, 5, 6), which make the backflow of dirt and debris into separation chamber (1) difficult. In the present device the danger of backflow of dirt and debris particles from the dirt collection chamber into the separation chamber is reduced.