Abstract: A method for determining correct performance of a sampling pipe in an aspirated particle and/or gas sampling system. The method includes causing a change in airflow n a sampling pipe of the aspirated particle and/or gas sampling system that induces a change in at least one airflow property within the sampling pipe, and detecting an effect of the change in said airflow property. Also disclosed is a method for determining correct performance of an aspirated particle gas sampling system. The method includes determining correct performance of a sampling pipe in the aspirated particle and/or gas sampling and determining correct performance of a detector in the aspirated particle and/or gas sampling system, wherein a test fluid is introduced to the aspirated particle and/or gas sampling system at or near the detector.

Abstract: Described herein are various technologies pertaining to a computing system architecture that facilitates construction of virtual motherboards and virtual storage devices. A computing system includes a plurality of computing nodes and a plurality of storage nodes, where the computing nodes are disaggregated from the storage nodes. The computing nodes include respective system on chip modules. The computing nodes and the storage nodes are communicatively coupled by way of a full bisection bandwidth network, where each storage node is allocated network bandwidth that at least matches the maximum input/output speed of the storage node. Responsive to receipt of a client request, computing nodes are allocated to the client and exposed to an application of the client as a motherboard. Likewise, storage nodes are allocated to the client and exposed to the application of the client as a larger storage device.

Abstract: A computing system architecture that facilitates constructing a virtual disk that is customized for an application is described herein. An exemplary computing system having such architecture includes a first plurality of homogeneous storage servers, each storage server in the first plurality of storage servers comprising respective data storage devices of a first type. The exemplary computing system also includes a second plurality of homogeneous storage servers, each storage server in the second plurality of storage servers comprising respective data storage devices of a second type. A virtual disk that is customized for an application is constructed by mapping a linear (virtual) address space to portions of storage devices across the first plurality of storage servers and the second plurality of storage servers. The storage servers are accessible over a full bisection bandwidth network.

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region.

Abstract: A rotary sampling valve for a multi-point aspirated gas or smoke detection system, the rotary sampling valve including multiple sets of inlet ports, whereby, in a first operation mode, air is drawn via all inlet points simultaneously and, in a second operation mode, air is drawn via one inlet port from each set of inlet ports simultaneously. A multi-point aspirated gas or smoke detection system including a rotary sampling valve is also described.

Abstract: Various technologies described herein pertain to performing time travel debugging. A computer-executable program can be executed. The computer-executable program can be executable under control of a virtual machine. The virtual machine can interact with a browser system during execution of the computer-executable program. Moreover, nondeterministic events can be logged via an interrogative virtual machine interface (VMI) during the execution of the computer-executable program. The nondeterministic events can be logged as part of event logs. Moreover, the interrogative VMI is between the virtual machine and the browser system. Further, snapshots of the virtual machine can be captured during the execution of the computer-executable program. The snapshots can be captured via the interrogative VMI. At least a portion of the execution of the computer-executable program can be replayed based at least in part on a snapshot and at least a portion of the event logs.

Abstract: A method of particle detection in an aspirated particle detection system having a sampling pipe network and a particle detector. The method includes drawing sample air to the particle detector through the air sampling network; analyzing the sample air with the particle detector; entering an amplification phase, in the event that a concentration of particles in the sample air greater than a predetermined threshold is detected, to create a plurality of sample air packets in the sampling pipe, wherein each sample air packet corresponds to a sampling inlet and includes an amplified concentration of air drawn from the corresponding sampling inlet; transporting the sample air including the plurality of sample air packets through the sampling pipe to the particle detector; and determining through which sampling inlet any particles entered the particle detection system.

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region.

Abstract: There is described a duct detector (1) and components (2, 3, 6) for duct detectors. In one form the duct detector (1) includes: a port unit (3) and detector unit (2). The port unit (3) is mountable to a duct in use so as to position one or more ports in the duct. The detector unit (2) includes a detection region. The port unit (3) and detector unit (2) are reconfigurable between a close coupled configuration and a separated configuration in which the units (2,3) are mountable with a variable separation between them and coupled by one or more elongate conduits (12A, 12B) to provide fluid communication between the units (2,3).

Abstract: Disclosed is an exhaust sampling system including a plurality of exhaust sampling system zones. The zones are, at least, a sampling conduit, a fill circuit, and a read circuit. A controller is programmed to predict a minimum dilution ratio to avoid condensation in one of the exhaust sampling system zones. The controller is further programmed to run a test procedure in which a sample of exhaust is diluted with a make-up gas at a selected minimum dilution ratio that is greater than or equal to the predicted minimum dilution ratio. Further disclosed are methods of predicting whether condensation occurs during a test procedure.

Abstract: An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus includes, a housing adapted to be in fluid communication with a duct of a particle detection system, and at least one gas detector sensitive to a target species arranged in fluid communication with the housing to detect the presence of the target species in at least part of the air sample flowing in a duct. In one form the gas detection apparatus forms part of a system for detecting a condition in an environment that includes, a particle detector; a duct system in fluid communication with the environment and the particle detector and an aspirator to draw an air sample flow from the environment to the particle detector.

Abstract: There is described a duct detector and components for duct detectors. In one form the duct detector includes: a port unit and detector unit. The port unit is mountable to a duct in use so as to position one or more ports in the duct. The detector unit includes a detection region. The port unit and detector unit are reconfigurable between a close coupled configuration and a separated configuration in which the units are mountable with a variable separation between them and coupled by one or more elongate conduits to provide fluid communication between the units.

Abstract: An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus includes, a housing adapted to be in fluid communication with a duct of a particle detection system, and at least one gas detector sensitive to a target species arranged in fluid communication with the housing to detect the presence of the target species in at least part of the air sample flowing in a duct. In one form the gas detection apparatus forms part of a system for detecting a condition in an environment that includes, a particle detector; a duct system in fluid communication with the environment and the particle detector and an aspirator to draw an air sample flow from the environment to the particle detector.

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region.

Abstract: A reaction vessel for conducting a chemical or biochemical reaction, such as a polymerase chain reaction wherein at least one wall of said vessel comprises a metallic layer and an inner non-metallic layer. Reaction systems comprising combinations of vessels of the invention and apparatus for heating them, as well as particular reactions vessels are also described and claimed.

Abstract: An exhaust sampling system includes a pre-fill gas source having a pre-fill gas. A sampling conduit is configured to collect exhaust gas and make-up gas. A sample bag is fluidly connected to the sampling conduit and the pre-fill gas source. A controller is programmed to run a test procedure in which a sample of exhaust gas and make-up gas is collected in the sample bag. The controller sends a command that fills the sample bag with pre-fill gas prior to the test procedure. The pre-fill gas remains in the sample bag during the test procedure. In one example, the amount of pre-fill gas is selected to prevent the sample from condensing in the sample bag during the test procedure. In another example, the amount of pre-fill gas is selected to provide a sufficient volume of gases for analysis during the test procedure.

Abstract: A LED television mounting frame assembly comprising: a frame, where the frame holds an aluminum housing; a polyvision glass, where the polyvision glass is stored within the frame; a LED television screen stored within the frame one side of the polyvision glass and placed on a viewing side of the frame; an art piece, where the art piece is stored on the opposite side of the polyvision glass, wherein said art piece is visible when LED television screen is not in used and is revealed through the polyvision glass; a back cover, where the cover is placed upon a back side of the frame; and electronic control systems, where said control systems provide a means for controlling the viewing side of the frame.

Abstract: Described herein are various technologies pertaining to a computing system architecture that facilitates construction of virtual motherboards and virtual storage devices. A computing system includes a plurality of computing nodes and a plurality of storage nodes, where the computing nodes are disaggregated from the storage nodes. The computing nodes include respective system on chip modules. The computing nodes and the storage nodes are communicatively coupled by way of a full bisection bandwidth network, where each storage node is allocated network bandwidth that at least matches the maximum input/output speed of the storage node. Responsive to receipt of a client request, computing nodes are allocated to the client and exposed to an application of the client as a motherboard. Likewise, storage nodes are allocated to the client and exposed to the application of the client as a larger storage device.

Abstract: Disclosed is an exhaust sampling system including a plurality of exhaust sampling system zones. The zones are, at least, a sampling conduit, a fill circuit, and a read circuit. A controller is programmed to predict a minimum dilution ratio to avoid condensation in one of the exhaust sampling system zones. The controller is further programmed to run a test procedure in which a sample of exhaust is diluted with a make-up gas at a selected minimum dilution ratio that is greater than or equal to the predicted minimum dilution ratio. Further disclosed are methods of predicting whether condensation occurs during a test procedure.