摘要:
A method and system for managing and reconciling naming conflicts in a configuration database. Attributes are collected about a detected resource in a network. Valid names for the detected resource are created based on the collected attributes and a set of naming rules. A valid name is created for each naming rule, and the naming rules have a priority order. A master-alias table is search to locate a match between existing names of known resources recorded in the master-alias table and any of the valid names. A partial match of resource attributes is determined to exist when all of the valid names in the set of valid names do not match an existing name in a matching entry. The detected resource is determined to be a new resource or an existing resource based on a priority of the naming rules used to create the valid names.
摘要:
A method and system for managing and reconciling naming conflicts in a configuration database. Attributes are collected about a detected resource in a network. Valid names for the detected resource are created based on the collected attributes and a set of naming rules. A valid name is created for each naming rule, and the naming rules have a priority order. A master-alias table is search to locate a match between existing names of known resources recorded in the master-alias table and any of the valid names. A partial match of resource attributes is determined to exist when all of the valid names in the set of valid names do not match an existing name in a matching entry. The detected resource is determined to be a new resource or an existing resource based on a priority of the naming rules used to create the valid names.
摘要:
A nuclear fuel assembly support grid formed from an array of a plurality of orthogonally arranged straps in an egg-crate configuration with angled trailing and/or leading edges that are designed to break the correlation of vortices shed from the edges of the grid straps by varying the phase of the vortices to avoid resonant vibration of the straps.
摘要:
A nuclear fuel assembly support grid formed from an array of a plurality of orthogonally arranged straps in an egg-crate configuration with angled trailing and/or leading edges that are designed to break the correlation of vortices shed from the edges of the grid straps by varying the phase of the vortices to avoid resonant vibration of the straps.
摘要:
An elongated through-grid split sleeve is used to secure a nuclear fuel assembly spacer grid axially within a fuel assembly. The split sleeve has windows extending along an axial dimension equal to the height of the cell walls through which control rod guide thimbles extend with the sleeve having an overall axial dimension that extends the sleeve above and below the cell walls. The sleeve is inserted into the guide thimble tube openings of a welded spacer grid assembly by squeezing the split sleeve to collapse its diameter to fit into the opening. The collapsed sleeve is inserted into the opening and then released when in position, thus locking it into position within the grid. The spacer grid assembly is then assembled into the fuel assembly skeleton structure and secured into position by welding the split sleeves to the guide thimble tubes.
摘要:
A coin escrow apparatus for use with a pay telephone includes a housing defining a coin hopper, a coin acceptance chute, and a coin return chute. The apparatus also includes a door mounted within the housing for selective movement between an escrow position for supporting coins in the hopper, an acceptance position for releasing coins from the hopper to the coin acceptance chute, and a return position for releasing coins from the hopper to the coin return chute. The door includes first and second ends and an underside portion. The apparatus also includes structures for selectively moving the door between its escrow, acceptance, and return positions, including: (a) guide elements for guiding the door for pivotal movement in a first direction and in a second direction opposite to the first direction; (b) a pivotal support element positioned below the door and having an upper portion engaging the underside of the door intermediate the first and second ends of the door, the pivotal support element pivoting about a pivot axis below the door; and (c) an actuator for pivoting the pivotal support element.
摘要:
A rotary switch operated by a cam having a lobe is disclosed. The cam is attached to a mechanism for rotation about the axis of the cam. A first switch contact member is positioned adjacent said cam and selectively makes electrical contact with a second switch contact member. The bracket attached to the first switch contact member contains a roller positioned adjacent to the cam for rotatably engaging the cam as the cam rotates. The roller is positioned with the bracket portion of the first contact such that the axis of the roller is movable from a first position to a second position as the switch changes from an open to closed or from a closed to open position. The bracket may contain an elongated slot which permits the axle of the roller to move within the slot as the switch changes modes. The slot preferably extends linearly and at an angle less than 45 degrees from a tangent line to the surface of said lobe adjacent the slope between said cam and said lobe. In preferred embodiments, 15 degree angles to the tangent are particularly advantageous. The switch is preferably operated in the main shaft in a highway crossing mechanism and is preferably used in the motor control circuit to drive the crossing arm upward.
摘要:
Shock prevention elements for use in a telephone paystation handset consisting of a pair of polyester dielectric elements positioned over associated transmitter and receiver units so as to block high voltage potentials resulting from application of collect and refund signals applied to the paystation from an associated telephone central office.
摘要:
A fuel assembly for a nuclear reactor that employs dissimilar materials for the fuel assembly grid and the control rod guide thimbles. The guide thimbles are secured to the grid employing a through grid cell sleeve that is welded to the grid and spot weld rings that are secured over the sleeve and welded directly to the guide tube through windows in the sleeve.
摘要:
A method of fabricating a fuel assembly grid that includes providing a plurality of interconnected straps that form a lattice pattern, wherein the lattice pattern of the straps defines a plurality of cells, providing a sleeve that has a cylindrical portion and a flared portion, and inserting the sleeve into at least one of the cells. When inserted, at least a portion of the cylindrical portion of the sleeve will reside inside the cell and the flared portion will extend above the top end of the cell and overhang the perimeter of the cell. The flared portion is melted and flows over and fuses to the straps that define the cell. The straps may include weld tabs over which the melted material flows and to which it fuses. The melting and fusing steps also preferably cause any loose straps surrounding the cell to become attached to the sleeve.