Abstract: A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).

Abstract: Devices and methods for enhancing heat exchanger airflow in a transport refrigeration system (TRS) of a refrigerated transport unit are provided. In particular, a fairing is provided on a top surface of a TRU to shield the TRU from an adverse effect of wind (e.g., ram air) and build a negative pressure at a heat exchanger fan delivery side of the TRU. The angle, shape and height of the fairing can be optimized to achieve a desired heat exchanger airflow through condenser coil(s), a radiator and/or intercooler of the TRU during operation.

Abstract: A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).

Abstract: A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).

Abstract: Devices and methods for enhancing heat exchanger airflow in a transport refrigeration system (TRS) of a refrigerated transport unit are provided. In particular, a fairing is provided on a top surface of a TRU to shield the TRU from an adverse effect of wind (e.g., ram air) and build a negative pressure at a heat exchanger fan delivery side of the TRU. The angle, shape and height of the fairing can be optimized to achieve a desired heat exchanger airflow through condenser coil(s), a radiator and/or intercooler of the TRU during operation.

Abstract: A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).

Abstract: An apparatus for use in a optical fiber ducting system, the apparatus including a housing; a first aperture in the housing, the first aperture being arranged to receive a multi-bore optical fiber duct including at least two bores; at least two further apertures in the housing, the further apertures each being arranged to receive a respective optical fiber duct; and at least one connection means for connection of an individual bore of the multi-bore duct to at least one of the respective fiber ducts.

Abstract: A method and apparatus for operating a buyer-driven electronic marketplace in which a product is traded from a seller to a purchaser first involves the receipt of a request to purchase goods from a buyer. The request to purchase goods specifies a type of goods to purchase. Sellers that generally stock the specified type of goods are then identified from a database of sellers, and the request to purchase goods is communicated to the identified sellers. Next, offers to sell the specified goods are received and then communicated to the buyer. Each offer to sell specifies a price of the offered goods. A product order corresponding to at least one of the received offers is then received from the buyer. That product order is communicated to the seller, and an order confirmation is then received from the seller.

Abstract: A local telecommunications network system IS arranged to provide a first asymmetric digital subscriber line (ADSL) service in a first frequency band to a first set of subscribers and a second very high bit rate digital subscriber line (VDSL) service in a second frequency band higher than the first frequency band to a second set of subscribers. Interference between the two types of digital traffic within the multi-pair feeder cables leading to the exchange is suppressed by low pass filtering the ADSL traffic and high pass filtering the VDSL traffic. The filtering may be applied to the line cards to which each subscriber line is connected.

Abstract: A passive optical network having a plurality of optical splitters/combiners each comprising first and second through ports and at least one drop port. The through ports of the plurality of splitters/combiners are concatenated to form a linear arrangement having two end through ports. Optical signals may be transmitted between the end through ports by means of the linear arrangement; and signals may be transmitted between at least one of the end through ports and one of the drop ports by means of the linear arrangement. The splitter/combiners can be inserted to form drop points in a ring or dual-homed passive optical network to provide flexibility in provision of protection and network reconfiguration.

Abstract: An infrastructure exchange (12) has a cross-point switch that is arranged to couple data transmission between subscriber terminals (16, 18), each having a dedicated modem (34), and at least one assignable modem (148) located in the infrastructure exchange (12). The infrastructure exchange (12) comprises fewer assignable modems than a combined number of dedicated modems within the subscriber terminals (16, 18) and, since the cross-point switch (106) is responsive to the data transmission sent via the modems of the subscriber terminals, the cross-point switch (106) thereby acts to concentrate a ratio of dedicated modems to assignable modems.

Abstract: To reduce the complexity, size and power dissipation associated with the deployment of xDSL-type modems in distribution points (140-142) of a telecommunications network, a transparent concentrating optical transmission scheme is interposed between an exchange (100) and a subscriber terminal (210). Specifically, xDSL-type modems (102-104 and 220-224) are employed both within the exchange (100) and, nominally each subscriber terminal (210) of the telecommunication system, while an optical fiber supports the transmission of frequency division multiplexed broadband signals sent between the exchange (100) and the distribution points (140-142). Twisted-pairs then couple respective broadband signals received and demultiplexed at the distribution points (140-142) to appropriately addressed subscriber terminals (210), while upstream transmissions are subjected to a complementary process from the xDSL modems (220-224) in the subscriber terminals (210) to the xDSL modems (220-224) in the exchange (100).

Abstract: A cabinet for outdoor use for enclosing a rack of electronics equipment has a double skin protective outer casing comprising a lower air intake into a cavity between the skins of the double skin and an upper air output from the cavity to the outside, for unforced cooling air to flow, to extract heat from the equipment by convection. The inner of the skins is formed in part at least by a heat sink of the rack. This unites the thermal management of the rack and that of the enclosure to provide an improved thermal path from the cards in the rack to the cold wall. This means the temperature difference between the inner skin and the air in the cavity can be increased for a given card temperature, so more heat can be extracted. The heat sink may share the back wall of the rack with the motherboard.

Abstract: To accommodate the overlay of broadband information over narrowband bearers while reducing cross-talk in upstream and downstream directions, different baseband line codes are used to modulate respective upstream and downstream transmissions on a common wireline communication resource, such as a twisted copper-pair. In this way, filtering components located at each end of a connection can reject cross-talk based upon dissimilar signal characteristics that arise between wanted broadband signals having a first baseband line code and spectrally-shifted cross-talk emanating from interfering broadband signals having a different baseband line code.

Abstract: 1-Alkyl-substituted-quinolone-3-carboxamides have therapeutic utility via inhibition of Phosphodiesterase IV esterase and/or Tumour Necrosis Factor activity. The compounds of the invention have the general formula (I): ##STR1## The compounds of the invention encompassed by formula (I) include enantiomers, diastereoisomers and mixtures, including racemic mixtures.

Abstract: A liquid level sensor system for a tank includes a stillwell having a transducer assembly positioned in the bottom of the stillwell. A guide conduit surrounds a flexible plastic coated wire bus which extends through a sidewall of the tank and which connects the transducer assembly to an indicator assembly located outside the tank. The conduit includes an end cap which secures the wire bus within the conduit. Installation and removal of the transducer assembly and wire bus is accomplished at a location outside the tank by removing the end cap and pulling or pushing the transducer assembly through the conduit by means of the wire bus.

Abstract: A host computer add on encryption/decryption printed circuit board includes address and control buffers, data buffer and board decode logic having input and output terminals selectively connected to the host computer and to first ports of a dual port random access memory (DPR) for storing a block of data and addresses and inputting portions of the block of data and addresses into the DPR's memory. A central processing unit (CPU) is connected to second ports of the DPR, and to a CPU RAM, CPU ROM, real time clock, key image buffer, and DES encryption device.

Abstract: A host computer add on encryption/decryption printed circuit board includes address and control buffers, data buffer and board decode logic having input and output terminals selectively connected to the host computer and to first ports of a dual port random access memory (DPR) for storing a block of data and addresses and inputting portions of the block of data and addresses into the DPR's memory. A central processing unit (CPU) is connected to second ports of the DPR, and to a CPU RAM, CUP ROM, real time clock, key image buffer, and DES encryption device.

Abstract: An encryption printed circuit board (PCB) for use as an add on board to a host computer includes address registers, read/write controller, and data information transceiver adapted for connection to the host computer. The addresses registers are connected to a memory decode, auto-start PROM, I/O decoder and register select. The memory decoder is connected to the auto-start PROM and the I/O decoder is connected to the register select. A bus logic circuit is connected to the read/write controller, and outputs read/write signals to the data information transceiver and register select. The data information transceiver is connected to the auto-start PROM and to a plurality of data registers for receiving instructions from the auto-start PROM and inputting or receiving information from the data registers pursuant to instruction of the auto-start PROM program, and selection of the appropriate registers by the register select.

Abstract: An encryption printed circuit board (PCB) for use as an add on board to a host computer includes address registers, read/write controller, and data information transceiver adapted for connection to the host computer. The addresses registers are connected to a memory decode, auto-start PROM, I/O decoder and register select. The memory decoder is connected to the autostar, PROM and the I/O decoder is connected to the register select. A bus logic circuit is connected to the read/write controller, and outputs read/write signals to the data information transceiver and register select. The data information transceiver is connected to the autostart PROM and to a plurality of data registers for receiving instructions from the auto-start PROM and inputting or receiving information from the data registers pursuant to instruction of the auto-start PROM program, and selection of the appropriate registers by the register select.