Abstract: A portable biosensing readout system for analyzing a sample is described herein. The system include a biosensor comprising a working electrode, a reference electrode and a counter electrode. The system also includes a core potentiostat circuit coupled to the biosensor, the core potentiostat circuit having one or more amplifiers configured to inject an excitation signal into the biosensor; isolate the reference electrode; and convert current of an output signal from the biosensor to voltage. The system also includes a microcontroller unit in communication with the core potentiostat circuit, the microcontroller unit being configured to: generate various different types of excitation signals that are transmitted to the core potentiostat circuit and, subsequently, to the biosensor; receive the output signal from the core potentiostat circuit; and communicate the output signal to an external computing device.

Abstract: A container (100) includes a plurality of wall panels (110) that define an internal volume (138). The plurality of wall panels (110) include a front wall panel (112) that defines an opening (120). The container (100) further includes a lid (116) connected to one of the plurality of wall panels (110). The lid (116) includes a cover panel (118) and a front flap panel (114). The front flap panel (114) is defined by a flap fold line (142) and has a first surface (114a) and an opposing second surface (114b). The container (100) further includes a closure apparatus (130) affixed to the second surface (114b) of the front flap panel (114). The closure apparatus (130) is sized and shaped to be closely received with the opening (120) in the front wall panel (112). The closure apparatus (120) includes a cellulosic material.

Abstract: An apparatus for monitoring a user's health and/or sleep and/or the efficacy of a treatment (e.g. a sleep treatment or other type of health treatment) can include use of a wearable electronic device. The device can include an array of sensors for collecting user data. The user data can be used by the device to evaluate criteria related to the user's health to monitor efficacy of a treatment. In addition, or alternatively, the collected data can be transmitted to a central server and/or input/output device for evaluating different criteria for monitoring the user's health and/or sleep as well as the efficacy of a treatment being provided to the user.

Abstract: An RF detection system includes a signal routing processor and a dynamically reconfigurable channelizer. The signal routing processor selects an operating mode of the RF detection system among a plurality of different operating mode. The dynamically reconfigurable channelizer invokes the selected operating mode in response to a routing control signal output by the signal routing processor. The dynamically reconfigurable channelizer includes a plurality of signal processing resources and a crossbar switching circuit. The crossbar switching circuit includes a signal input to receive an input signal and a signal output to output a final processed signal indicating a detected object. The crossbar switching circuit selectively establishes a plurality of different signal routing paths that connect the plurality of signal processing resources to the signal input and signal output.

Abstract: An RF detection system includes a signal routing processor and a dynamically reconfigurable channelizer. The signal routing processor selects an operating mode of the RF detection system among a plurality of different operating mode. The dynamically reconfigurable channelizer invokes the selected operating mode in response to a routing control signal output by the signal routing processor. The dynamically reconfigurable channelizer includes a plurality of signal processing resources and a crossbar switching circuit. The crossbar switching circuit includes a signal input to receive an input signal and a signal output to output a final processed signal indicating a detected object. The crossbar switching circuit selectively establishes a plurality of different signal routing paths that connect the plurality of signal processing resources to the signal input and signal output.

Abstract: A chiller for cooling an electronic device using circulating fluids to cool electronic components which comprises a thermoelectric cooler having a cool face and a warm face when connected to a power source; a heat spreader plate; and a heat exchanging surface, said thermoelectric cooler, said heat spreader plate and said heat exchanging surface all thermally coupled to dissipate heat energy from a heat input surface to said heat exchanging surface.

Abstract: A fluid heat exchanger includes: a base, a heat pipe including an evaporator portion thermally coupled to the base and a condenser portion; a coolant block portion thermally coupled to the condenser portion of the heat pipe, the coolant block portion including a liquid tight passage extending from a passage inlet to a passage outlet.

Abstract: A heat sink includes: a first end; a second end; an exterior surface; a plurality of fins including a first fin and a second fin adjacent the first fin, each of the first fin and the second fin being substantially annular in form with an opening formed therethrough; a fin space between the first fin and the second fin to permit the flow of heat transfer fluid therethrough; a duct extending through the plurality of fins into which the fin space opens, the duct formed at least in part by corresponding arrangement of the openings of the first fin and the second fin, the duct opening at the first end of the heat sink to the exterior surface; and a thermal plate in heat conducting communication with the first fin and the second fin.

Abstract: An apparatus for cooling an electronic device that includes a fluid heat exchanger, a chiller, and a pump. The fluid heat exchanger transfers heat from a hot portion of the surface of the electronic device to a fluid and has a body through which the fluid may be circulated. The body has a protrusion having a first surface that may be thermally coupled to the hot portion such that the surface of the body is sufficiently distant from the surface of the electronic device that sufficient ambient air may circulate therebetween so as to substantially prevent condensation from forming on the surface of the electronic device and from forming on and dripping from the heat exchanger when the fluid is cooled to at least the dew point of the ambient air and circulated through the body. A heat-conducting path is provided from the first surface to a region of the body that is thermally coupled to the fluid when the fluid is circulated through the body.

Abstract: A heat sink is described for extracting heat from at least one electronic device, such as a microprocessor, either directly or indirectly (i.e. via liquid coolant). The heat sink includes a first thermal plate, a second thermal plate and a plurality of fins integral with and extending between both the first thermal plate and the second thermal plate.

Abstract: A heat exchanger mounting assembly including a torsionally resilient wire is disclosed. A fluid heat exchanger is disclosed that includes a base formed to uniformly distribute thermal energy to a heat transfer fluid path through the heat exchanger.

Abstract: Synthetic yarn and yarn-like structures are formed by the method of treating separate multifilament strands of thermoplastics material so that at least one has a shrinkage ratio higher than normal at an elevated temperature. The strands are intermingled in a gas stream with formation of loops on the strands after which they are subjected to a twisting force which imparts a random form of twist on the intermingled formation followed by a heating operation to cause them to shrink differentially while being held until shrinkage ceases so that interlocking bud-like projections form on the filaments.

Abstract: Synthetic yarn and yarn-like structures are formed by the method of treating separate strands of thermoplastic material so that at least one has a shrinkage ratio higher than normal at an elevated temperature. The strands are fed forwardly at different rates of overfeed and intermingled in a gas stream with formation of loops on the strands, then heated to cause them to shrink differentially while being held to a predetermined length until shrinkage ceases. Apparatus for performing the method includes yarn drawing means, intermingling means comprising a jet device incorporating intersecting passages for the strands and for a gas under pressure, feeding means and heating and cooling means for the intermingled yarn downstream from the jet device, also means for holding the intermingled yarn to a predetermined length while it is being heated and cooled. Yarn produced by the method incorporates filaments at least some of which present bud-like projections inhibiting relative movement of the filaments.

Abstract: A turbine blade for a gas turbine engine has a hollow aerofoil and a root. A first insert for the distribution of cooling air in the aerofoil is inserted thereinto through an opening in the root but due to the relatively high camber of the blade the insert is such that it has to be displaced laterally after insertion. A second insert, also inserted through the opening, is provided to secure the first insert in position and to guide the cooling air from the opening to the first insert.

Abstract: A stator blade for a gas turbine engine comprises a stack of laminar sections and means adapted to resiliently hold the sections together in compression to allow for differential expansion between the stack and supporting structure.

Abstract: A turbine blade comprising an aerofoil-shaped body having a main portion and a trailing portion, the latter being of undulating shape so as to define at each side of the blade chordally extending troughs. The blade may include cooling air holes extending from the interior of the main portion to a surface of the troughs.

Abstract: A ducted fan gas turbine engine comprises a pair of turbines in flow series which are contra-rotating and which drive shafts which in turn drive into an epicyclic gear. The output from the epicyclic gear drives a fan which normally provides forward thrust from the engine. The fan can be made to rotate in the opposite direction to provide reverse thrust by varying the relative speeds of rotation of the two turbines by bleeding working fluid from between them.