Abstract: A method and system include receiving a request to initiate a purchase transaction with a payment card product; generating a message to verify an authenticity of a cardholder of the payment card product, wherein the message includes a request for data about a previous transaction executed with the payment card product; receiving, in response to the generated message, input from the cardholder; comparing the input from the cardholder to stored data associated with the previous transaction; and one of confirming the cardholder as a true owner of the payment card product or denying the cardholder as the true owner of the payment card product based on the comparison. Numerous other aspects are provided.

Abstract: A method and system include receiving a request to initiate a purchase transaction with a payment card product; generating a message to verify an authenticity of a cardholder of the payment card product, wherein the message includes a request for data about a previous transaction executed with the payment card product; receiving, in response to the generated message, input from the cardholder; comparing the input from the cardholder to stored data associated with the previous transaction; and one of confirming the cardholder as a true owner of the payment card product or denying the cardholder as the true owner of the payment card product based on the comparison. Numerous other aspects are provided.

Abstract: Systems and methods for identifying information providers based on user queries are provided. The method includes receiving a user query including a request for information regarding intended travel from a query capture application, processing the user query to identify query travel characteristics associated with the request for information, receiving a plurality of transaction data, and identifying a plurality of past travel transactions from the transaction data based on a set of travel indicators associated with each past travel transaction. The method further includes applying a matching algorithm to the past travel transactions and the user query to identify a list of traveler cardholders capable of responding to the user query, identifying a first traveler cardholder user device, causing the request for information to be displayed on the first traveler cardholder user device, and causing a travel response to the request for information to be displayed on a querying user device.

Abstract: A payment network for real-time chargeoff monitoring includes a server and at least one memory module storing computer program code. The at least one memory module and the stored computer program code are configured to, with at least one processor, cause the server to receive a set of credit bureau files and a set of transaction processor files. Further the memory module, computer program code, and the processor are configured to cause the server to process the credit bureau files, the transaction files, and payment card information associated with a set of payment cards, through a chargeoff model to determine a set of chargeoff scores. Each of the chargeoff scores is associated with one of the payment cards. The memory module, computer program code, and the processor are also configured to cause the server to receive a credit-limit-increase request message. The credit-limit-increase request message includes a credit-limit increase request for a subject card selected from the set of payment cards.

Abstract: A method of targeting commercial entities for transaction-card usage revenue enhancement. The method includes functionally combining electronically searchable data sources concerning actual or potential commercial transaction-card using entities. The electronically searchable data sources include data concerning the commercial transaction card-using entities, relating to its relationship with a transaction-card issuer, firmographic data, and transaction record data concerning transaction card usage by commercial transaction card-using entities. The first plurality of electronically searchable data sources is electronically searched to identify one or more model-performance actual or potential commercial transaction-card using entities. A set of key metric categories is identified among the electronically searchable data sources, in which the model-performance card-using entities exceed their peers.

Abstract: A superconducting magnet system wherein a cryocooler provides refrigeration to a cryogenic shield for the superconducting magnet and a heat pipe extends from the cryogenic shield to a cryogen vessel for the provision of supplementary refrigeration.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein temperature trending of at least one cryocooler component or the refrigeration load is monitored and used to calculate a service time.

Abstract: A cryocooler system having at least one flow straightener which has a system of grooves on its perforated surface for enhancing gas flow uniformity through the system wherein pulsing gas which does not initially pass through the flow straightener through a perforation flows along the surface of the flow straightener within a groove prior to passing through a perforation and is effectively redistributed across the surface of the flow straightener and thus the cross section of the regenerator or thermal buffer tube.

Abstract: A method for operating a cryocooler wherein some cryocooler working gas is diverted from the pressure wave pathway before passing to the cold portion of the cryocooler, passed to a getter for adsorptive cleaning of contaminants, and returned to the pressure wave pathway at a warm portion of the pressure wave pathway.

Abstract: A pulse tube system for generating refrigeration for uses such as in magnetic resonance imaging systems wherein an oil-free compressor operating at a higher frequency generates pulsing gas which undergoes a frequency reduction and drives the pulse tube system at a more efficient lower frequency.

Abstract: A low void pressure swing adsorption system wherein flow movement and pressure pulse are influenced from the same source comprised of at least one hermetically sealed vessel containing an adsorbent bed with an inlet coupled to the adsorbent bed by way of an inlet header and an outlet coupled to the adsorbent bed by way of an outlet header. Void volume of the inlet and outlet headers can be limited to less than 20% of the adsorbent bed volume, preferably to less than 10%, and most preferably to less than 5%, by mounting high pressure source(s) and/or low pressure sink(s) proximate to, or nearly proximate to, the adsorbent bed/vessel. Low void volumes and reduced cycle times may be achieved in all bed configurations, including flat header beds, segmented beds, and vertical beds. Radial beds may be configured so that the void volume of the inlet and outlet headers is less than 50% of the volume of the radial adsorbent bed, preferably to less than 20%, and most preferably to less than 10%.

Abstract: A cryocooler system having at least one flow straightener which has a system of grooves on its perforated surface for enhancing gas flow uniformity through the system wherein pulsing gas which does not initially pass through the flow straightener through a perforation flows along the surface of the flow straightener within a groove prior to passing through a perforation and is effectively redistributed across the surface of the flow straightener and thus the cross section of the regenerator or thermal buffer tube.

Abstract: A cryocooler assembly having a regenerator employing a plurality of high heat capacity screens positioned perpendicular to the regenerator longitudinal axis and in a sufficient linear density to serve as heat transfer media and also to serve as buffer structures to keep worm holes within particulate heat transfer media from forming and to reduce agglomeration of particles within the regenerator.

Abstract: A method for operating a cryocooler wherein some cryocooler working gas is diverted from the pressure wave pathway before passing to the cold portion of the cryocooler, passed to a getter for adsorptive cleaning of contaminants, and returned to the pressure wave pathway at a warm portion of the pressure wave pathway.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein temperature trending of at least one cryocooler component or the refrigeration load is monitored and used to calculate a service time.

Abstract: A pulse tube system for generating refrigeration for uses such as in magnetic resonance imaging systems wherein an oil-free compressor operating at a higher frequency generates pulsing gas which undergoes a frequency reduction and drives the pulse tube system at a more efficient lower frequency.

Abstract: A refrigeration generation system wherein a frequency modulating mechanical resonator is positioned between a pressure wave generator and a cryocooler and serves to reduce the frequency of the oscillating gas emanating from the pressure wave generator so that it more closely comports with a more efficient operating frequency of the cryocooler.

Abstract: A system for providing industrial gas to a use point in relatively small quantities that would otherwise require the use of high pressure gas cylinders, wherein industrial gas is generated from a feed, liquefied using refrigeration generated by a refrigeration system, and stored in a storage vessel prior to provision to the use point. The preferred refrigeration system is a pulse tube system powered by gas associated with the industrial gas generation system.