摘要:
A networking appliance includes a chassis, an off-the-shelf motherboard mounted on said chassis, said motherboard including at least one expansion bus, one or more separately removable expansion module mounted on said chassis, and a number of card slots in the expansion module for accommodating expansion cards. A connection arrangement provides a signal connection between the card slots in the expansion modules and the expansion buses.
摘要:
The present invention provides nucleic acid based polymerase inhibitors and methods for reducing non-specific polymerase extension and amplification in nucleic acid amplification reactions. The polymerase inhibitors provide a double stranded nucleic acid portion that is recognized by a polymerase enzyme as a template for extension but is incapable of being extended by the polymerase enzyme. The polymerase binds to the polymerase inhibitor which sequesters the enzyme until the temperature achieves a level that denatures the double stranded portion of the inhibitor after which the polymerase is released and can then catalyze nucleic acid extension.
摘要:
Disclosed are methods and kits for identifying and characterizing polynucleotide sequences in a sample which may include a heterogeneous sample. Some of the methods and kits are directed to the identification and characterization of a virus in a sample, which may include HIV capable of cause AIDS or AIDS-like symptoms. The virus may be HIV-1, and may also include drug resistant mutations. The methods may include reacting a mixture that includes, in addition to nucleic acid isolated from the sample, at least one oligonucleotide capable of specifically hybridizing to HIV nucleic acid where the oligonucleotide includes at least one non-natural base. In addition, the methods may include detection of one or more mutations in HIV nucleic acid that are associated with drug resistance.
摘要:
The present invention provides nucleic acid based polymerase inhibitors and methods for reducing non-specific polymerase extension and amplification in nucleic acid amplification reactions. The polymerase inhibitors provide a double stranded nucleic acid portion that is recognized by a polymerase enzyme as a template for extension but is incapable of being extended by the polymerase enzyme. The polymerase binds to the polymerase inhibitor which sequesters the enzyme until the temperature achieves a level that denatures the double stranded portion of the inhibitor after which the polymerase is released and can then catalyze nucleic acid extension.
摘要:
A field reconfigurable muxponder for use in an optical transport system. The muxponder includes one or more tributary cards, where each tributary card is adapted to receive an optical data signal and conditions the optical data signal into an intermediate data signal constituted in accordance with a tributary interface format. In this way, the muxponder is able to aggregate optical data signals having different protocols and/or different data rates. The muxponder further includes a chassis that is adapted to receive a predefined number of tributary cards and outputs an optical system signal independently from the availability of the optical data signals from the tributary cards. The tributary cards and the chassis integrally form one line card.
摘要:
A rectilinear folded and glued container with tiered shelves has multiple shelf panels cut out of a front panel with which the shelf panels, and main container front, side and back panels are integrally connected. The container has an internally placed shelf-raising panel that is attached to the shelf panels as part of a fold and glue processing technique that produces a knocked down flat container to be erected. The shelf raising panel preferably is an integral panel that is separate from the main container panels so as to be relatively movable, and is affixed to the shelf panels. Displacing or translating the shelf-raising panel during erection of the container from its knocked-down-flat configuration articulates the shelves into position. The shelf raising panel can be captured between top and bottom ends of the erected container, thus fixing the erected container and articulated shelves in a rigid shape.
摘要:
A field reconfigurable muxponder for use in an optical transport system. The muxponder includes one or more tributary cards, where each tributary card is adapted to receive an optical data signal and conditions the optical data signal into an intermediate data signal constituted in accordance with a tributary interface format. In this way, the muxponder is able to aggregate optical data signals having different protocols and/or different data rates. The muxponder further includes a chassis that is adapted to receive a predefined number of tributary cards and outputs an optical system signal independently from the availability of the optical data signals from the tributary cards. The tributary cards and the chassis integrally form one line card.
摘要:
A system for recovering a clock signal from a data signal is described. The system uses an oscillator adapted to generate an oscillator output signal, a first detecting circuit for obtaining a coarse frequency-lock condition between the data signal and a recovered clock signal, a second detecting circuit for obtaining a phase-locked condition between the data signal and the recovered clock signal, a lock-detecting circuit responsive to the first detecting circuit for detecting an out-of-lock condition between the data signal and the recovered clock signal, and a control circuit responsive to the lock-detecting circuits and adapted to control the oscillator to generate an oscillator output signal on the basis of the first detecting circuit during an out-of-lock condition, and otherwise to generate the oscillator output signal on the basis of the second detecting circuit. The advantages include a much wider pull-in range for frequency acquisition, and an accurate and robust measure of a quality of received data.
摘要:
Disclosed are methods for identifying and characterizing polynucleotide sequences in a sample which may include a heterogeneous sample. Some of the methods are directed to the identification and characterization of a virus in a sample, which may include HIV capable of cause AIDS or AIDS-like symptoms. The virus may be HIV-1, and may also include drug resistant mutations. The methods may include reacting a mixture that includes, in addition to nucleic acid isolated from the sample, at least one oligonucleotide capable of specifically hybridizing to HIV nucleic acid where the oligonucleotide includes at least one non-natural base. In addition, the methods may include detection of one or more mutations in HIV nucleic acid that are associated with drug resistance.
摘要:
A rectilinear folded and glued container with tiered shelves has multiple shelf panels cut out of a front panel with which the shelf panels, and main container front, side and back panels are integrally connected. The container has an internally placed shelf-raising panel that is attached to the shelf panels as part of a fold and glue processing technique that produces a knocked down flat container to be erected. The shelf raising panel preferably is an integral panel that is separate from the main container panels so as to be relatively movable, and is affixed to the shelf panels. Displacing or translating the shelf-raising panel during erection of the container from its knocked-down-flat configuration articulates the shelves into position. The shelf raising panel can be captured between top and bottom ends of the erected container, thus fixing the erected container and articulated shelves in a rigid shape.