摘要:
Methods, systems and computer program products for providing roaming services to a wireless telephone roaming outside of its home service area by receiving a request for roaming service from a wireless telephone that is within a roaming network and offering a special roaming contract to the user of the wireless telephone. The request for services comprises an identify of the wireless telephone wherein the identity comprises the mobile identification number and the electronic serial number. Using the identity of the wireless telephone received in the request, the roaming network determines that the wireless telephone identity is not recorded as a record within the roaming network and is therefore roaming. The method provides offering a special roaming contract to the user and then executing the special roaming contract if the user decides to accept the offer for a special roaming contract.
摘要:
A wizard user interface generates an interim system product during forward traversal of the wizard's pages and causes the generated interim system product to revert (i.e. be restored to a condition associated with a previous wizard page) during backward traversal of the wizard's pages. Advancing to a next page of the wizard causes a system product to be generated. The generated interim product is application dependent and may comprise one or more components, such as a generated electronic file or an amendment to an existing file for example, which are not merely by-products of the wizard mechanism. Backtracking to a previous wizard page causes the generated interim system product to revert. The wizard user interface allows observation of, and interaction with, the generated interim system product by the user prior to wizard completion.
摘要:
An operating system provides an interface that allows the user to assign printers for use when a print job having one or more specific attributes has been submitted. The one or more specific attributes of a print job may include the identity of the application generating the print job, the file type being printed, one or more features of the print job, the presence or absence of color, the page size, the number of pages, the draft quality specified, the paper stock selected, and combinations thereof. The attributes of the print job are identified by the operating system after receiving the print job, and the print jobs are directed to the appropriate printer by looking up the identified attributes in user-customized printer assignments.
摘要:
A chemical sensor for detecting the presence of one or more analytes. The sensor comprises at least one electrode pair and a photopolymerized electrically conducting polymer composition disposed in contact between each of the electrode pairs. Each polymer composition may include an organic polymer capable of interacting with one or more analytes. The sensor also comprises a means for delivering an analyte to each polymer composition, and a means for processing the resultant electronic signal from each polymer composition and electrode pair. Preferably, the sensor comprises a plurality of different polymer compositions, each with a dedicated electrode pair, to generate a collection of signals that provide a fingerprint unique to a particular analyte.
摘要:
A method for electrochemical synthesis of ammonia gas comprising providing an electrolyte between an anode and a cathode, providing hydrogen gas to the anode, oxidizing negatively charged nitrogen-containing species present in the electrolyte at the anode to form an adsorbed nitrogen species, and reacting the hydrogen with the adsorbed nitrogen species to form ammonia. Preferably, the hydrogen gas is provided to the anode by passing the hydrogen gas through a porous anode substrate. It is also preferred to produce the negatively charged nitrogen-containing species in the electrolyte by reducing nitrogen gas at the cathode. However, the negatively charged nitrogen-containing species may also be provided by supplying a nitrogen-containing salt, such as lithium nitride, into the molten salt electrolyte mixture in a sufficient amount to provide some or all of the nitrogen consumed in the production of ammonia.
摘要:
A progressing cavity pump/motor includes a stator (12) having a metal interior surface (14) and one or more spiraling internal lobes (16). The rotor (18) has a metal exterior surface (20) and one or more spiraling external lobes (22) for cooperating with the stator to form progressing cavities between the stator and the rotor during rotation of the rotor. At least one of the stator interior surface and the rotor exterior surface include a plurality of spaced grooves (30) in the respective surface, such that fluid flowing to a gap between the stator and the rotor is disrupted by the spaced grooves to reduce fluid leakage between the stator and the rotor.
摘要:
A quintuplex mud pump includes a pair of motors (18), a crankshaft (40) supporting five eccentric lobes (44), and first and second bull gears (30). Each of two pinion shafts (20) are rotationally independent, and has a pinion gear interfacing with a respective bull gear on the crankshaft (40). Five connecting rods (46) interconnect a respective eccentric lobe and a respective piston.
摘要:
A progressing cavity pump/motor (10) includes a stator housing (12), a polymeric layer (14), and a rotor (16). A plurality of axially extending grooves (24) are formed in the interior surface of the stator housing for receiving polymeric material therein. At least one seal gland (46) adjacent an end of the polymeric layer maintains sealing between the stator housing and the polymeric layer.