Abstract: An HF alkylation process for producing gasoline boiling range alkylate product by the alkylation of a light olefin with an isoparaffin in the presence of hydrogen fluoride as an alkylation catalyst, in which the content of organic fluorides in the alkylation product stream is reduced by recontact with additional HF alkylation acid after which the hydrocarbon phase and the denser acid-containing phase are separated in a hydrocyclone. The use of the hydrocyclone enables the acid inventory of the unit to be significantly reduced which still achieving satisfactory removal of the unwanted fluoride by-products.

Abstract: A printed circuit board module for a rack mounted chassis. The module includes a latching assembly having: a handle and a catch. When the module is inserted a predetermined distance into a chassis, the catch becomes inserted into an aperture formed on the chassis and when, at such predetermined distance, the handle is slid inwardly into the chassis, the catch engages the handle to retain the handle within the module. On the other hand if, when the module is inserted into the chassis at a distance less than the predetermined distance, the catch is unable to be inserted into an aperture and when the handle is slid inwardly from the chassis, the catch prevents the handle from being retained and such handle, when released, is urged outwardly of the module thereby indicating that the module is improperly inserted within the chassis.

Abstract: A computer implemented method, computer product code, and data processing system are provided for transferring data between virtual partitions. A request is received to transfer a packet from a first partition to a second partition. A free buffer is identified from a buffer pool of the second partition, and a receive descriptor is written. A bit within the receive descriptor is set to identify a receive descriptor ring of second partition. A first interrupt is generated to the second partition. The packet is then copied to the free buffer, and the receive descriptor is updated.

Abstract: A device sending electronic messages first verifies the intended recipient of the message by sending a message beacon (101) comprising data uniquely identifying the electronic message and the electronic address of the intended recipient of the message to a receiving device. The receiving device verifies that the intended recipient is serviced by the receiving device and then replies to the sending device returning the message beacon (102). The sending device thereafter sends the electronic message to the intended recipient (103). The receiving device may also reply to the sending device with a verification reply including data related to the intended recipient (108). Upon consideration of the data, the sending device may alter the electronic message prior to forwarding, forward the message or determine to withhold the message.

Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters.

Abstract: Described is a data storage system having a rack with opposing sidewalls, an open front side, an open rear side, front compartments for holding chassis received through the front side, and rear compartments for holding chassis received through the rear side. A first conduit is mounted vertically to one of the sidewalls of the rack between the front and rear compartments. A second conduit mounted vertically to the other of the sidewalls of the rack between the front and rear compartments. A first chassis and second chassis each houses disk drives and electrically connects to the first and second conduits. The first chassis residing in a front compartment of the rack with a front side of the first chassis facing the front side of the rack. The second chassis resides in a rear compartment of the rack with a front side of the second chassis facing the rear side of the rack.

Abstract: Described is a disk drive assembly and method for constructing same. The disk drive assembly includes a carrier-less disk drive having opposite sides, each with at least one hole. A carrier holds the disk drive. The carrier includes a frame around three sides of the disk drive. The frame has a base and opposing sidewalls. Each sidewall has an integrally formed pin that enters a corresponding hole in a side of the disk drive to position the disk drive within the frame. Coupled to the frame where each sidewall terminates is a clip. The clip provides a fourth side to the frame opposite the base and causes the sidewalls to hold the disk drive tightly therebetween. An injector-ejector mechanism can be rotatably coupled to the clip for pivotal movement between open and closed positions. Such movement urges the disk drive assembly out of and into a chassis bay.

Abstract: The present invention is an improved regenerated catalyst bend assembly for a fluid catalytic cracking unit. In a preferred embodiment, the reduced elevation (“RE-bend” or “REL-bend”) regenerated catalyst return line assembly of the present invention has an outlet elevation that is lower than the inlet elevation of the RE-bend or REL-bend regenerated catalyst return line assembly, and a process for utilizing the assembly in a fluid catalytic cracking unit. The present invention is especially useful in the modification of existing fluid catalytic cracking units to lower the elevation of the outlet of the regenerated catalyst return line assembly, thereby providing needed space to increase the fluid catalytic cracking reactor riser length.

Abstract: A method for manufacturing a flexural plate wave sensor, the method including the steps of depositing an etch-stop layer over a substrate, depositing a membrane layer over said etch stop layer, depositing a piezoelectric layer over said membrane layer, forming a comb pattern with drive teeth which span across an entire length of the piezoelectric layer on said piezoelectric layer, etching a cavity through the substrate, the cavity having substantially parallel interior walls, and removing a portion of the etch stop layer between the cavity and the membrane layer to expose a portion of the membrane layer.

Abstract: A method, system, and computer program product for controlling data packet traffic flow into a link partner device such as an ethernet adapter. In one embodiment, an occupancy level of an adapter receive queue is monitored to detect a receive queue overrun or underrun condition or event. The detected overrun or underrun condition or event is utilized as the criteria for adjusting a pause time value within a pause time flow control frame. The pause time flow control frame is transmitted from the link partner device to a corresponding remote link partner device to pause data packet transmission in accordance with the adjusted pause time value.

Abstract: A computer implemented method, apparatus, and computer usable program code for processing packets for transmission. A set of interface specific network buffers is identified from a plurality of buffers containing data for a packet received for transmission. A data structure describing the set of interface specific network buffers within the plurality of buffers is created, wherein a section in the data structure for an interface specific network buffer in the set of interface specific network buffers includes information about a piece of data in interface specific network buffer, wherein the data structure is used to process the packet for transmission.

Abstract: The present invention provides a computer implemented method, system, and computer program product of dynamic segmentation based on processor load using various steps. If a network interface card is enabled for segmentation, a determination is made as to whether a processor utilization value is greater than a threshold. If processor utilization value is above the threshold, segments are offloaded to the network interface card, wherein segments are sent to the network interface card.

Abstract: A computer implemented method, apparatus, and computer usable program code for managing buffers. A number of buffers present in a pool of buffers assigned to a network device driver are monitored, wherein the buffers in the pool of buffers are used to process packets of data for transmission onto a network. A request is denied from a transport layer for a buffer from the pool of buffers if the number of buffers falls below a threshold level, wherein at least one buffer is present in a buffer pool if the number of buffers falls below the threshold level.

Abstract: This invention relates to efficiently regenerating catalyst particles by minimizing the formation of localized “hot spots” and “cold spots” in a regeneration zone. In one embodiment, the invention includes mixing spent catalyst from a reactor and cold catalyst from a catalyst cooler in a mixing zone and directing the mixed catalyst to the regeneration zone in a fluidized manner with a fluidizing medium. In the regeneration zone, the mixed catalyst contacts an oxygen-containing regeneration medium under conditions effective to regenerate the spent catalyst contained therein.

Abstract: A computer implemented method, data processing system, and computer program product for dynamically replacing a network adapter with minimal or no communications downtime. When a notification to replace a first network adapter is received, the process in the illustrative embodiments detects a replacement network adapter and a network interface corresponding to the replacement network adapter. The process configures a replacement network adapter, and pauses all communications to the first network adapter by dropping all incoming data packets to the first network adapter. The network interface corresponding to the first network adapter is redirected to point to the replacement network adapter. The first network adapter and the network interface corresponding to the replacement network adapter are then removed. Communication flow to the replacement network adapter is restored.

Abstract: A method, system, and computer program product for controlling data packet traffic flow into a link partner device such as an ethernet adapter. In one embodiment, an occupancy level of an adapter receive queue is monitored to detect a receive queue overrun or underrun condition or event. The detected overrun or underrun condition or event is utilized as the criteria for adjusting a pause time value within a pause time flow control frame. The pause time flow control frame is transmitted from the link partner device to a corresponding remote link partner device to pause data packet transmission in accordance with the adjusted pause time value.

Abstract: A computer implemented method and apparatus are provided for transferring data in a logical partitioned data processing system. A receiving adapter receives data from a network. The receiving adapter transfers the data to a pre-mapped buffer if the data is to be sent to a target adapter. A virtual bridge receives the pre-mapped buffer from the receiving adapter and transfers the pre-mapped buffer to the target adapter. The target adapter receives the pre-mapped buffer from the virtual bridge and determines that the received buffer is pre-mapped. The target adapter accesses the pre-mapped buffer using pre-mapped mapping, and transmits the data contained therein.

Abstract: The present invention provides a computer implemented method, system, and computer program product of dynamic segmentation based on processor load using various steps. If a network interface card is enabled for segmentation, a determination is made as to whether a processor utilization value is greater than a threshold. If processor utilization value is above the threshold, segments are offloaded to the network interface card, wherein segments are sent to the network interface card.

Abstract: Described is a label cassette for mounting to the front side of an enclosure and for holding and displaying a label used to identify a configuration of that enclosure. The label cassette includes a transparent cover, a tray, and a hinge mechanism. The tray has a pair of guide rails for engaging respective guide structures on the enclosure to align the label cassette for attachment to the enclosure, a capture mechanism to secure the label cassette to the enclosure, and a label surface to hold a label. The hinge mechanism attaches the transparent cover to the tray and permits rotation about an axis parallel to the back edge of the transparent cover. Mounted to a ledge that extends from the front of the enclosure, the label cassette does not occupy vertical space or interfere with connectors, cables, or airflow vents on the front of the enclosure.

Abstract: A chassis housing disk drives has an electrical plug and an electrical signal connector at its back end. A rack has a compartment for receiving the chassis. A cable conduit mounted to a rack sidewall adjacent the compartment abuts the back end of the chassis. A first cable assembly coupled to the cable conduit includes an electrical plug receptacle and a first cable extending through the cable conduit for conducting power to the electrical plug receptacle. A second cable assembly coupled to the cable conduit includes a data signal connector and a second cable extending through the cable conduit for conducting data signals to and from the data signal connector. The electrical plug receptacle receives the electrical plug and the data signal connector receives the electrical signal connector of the chassis, concurrently, when the chassis slides into the compartment fully, to supply power to and establish communications with the chassis.