Abstract: Systems and methods for a controller including controller memory and logic are presented herein. The logic is configured to control access to a persistent storage media and, in response to one or more commands, the logic determines an intermediate parity value based on a first parity calculation, and using the intermediate parity value determines a final parity value based on the intermediate parity value and a second parity calculation. Determining the intermediate parity value includes sending a uni-directional command to read an old data value from an address indicated in the uni-directional command, perform an exclusive-or operation on the old data value and a new data value indicated in the uni-directional command to determine the intermediate parity value and store, in the persistent storage media, the intermediate parity value at a location associated to an index indicated in the uni-directional command.

Abstract: This invention relates to a flame retardant epoxy resin composition which includes an epoxy resin structure having an epoxy functionality of 2 or more with a measured total heat release value of not more than 23 kJ/g as well as an organic phosphinic acid structure (in reacted or unreacted form), as well as a prepreg, and a fiber reinforced composite material prepared using the epoxy resin composition. More specifically, an epoxy resin composition is provided that contains a combination of particular types of epoxy resins and curatives that provide sufficient flame retardance when cured at 163° C. for 15 minutes. The epoxy resin systems are also suitable for preparing a fiber-reinforced composite material that will also provide sufficient flame retardance for a variety of applications.

Abstract: This invention relates to a flame retardant fiber-reinforced composite material based on an epoxy resin composition which includes at least one epoxy resin having an epoxy functionality of at least 2 as well as at least one organic phosphinic acid or derivative thereof (e.g., an organic phosphinic acid-modified epoxy resin), reinforced with a fiber having a thermal conductivity?3 W/m·K at room temperature, as well as a prepreg for making such a flame retardant fiber-reinforced composite material. More specifically, a composite material is provided that contains a combination of particular types of epoxy resins, curatives, and reinforcing fibers that provide sufficient flame retardance for thin-ply laminates when cured at 163° C. for 15 minutes. These cured composites are also suitable for a variety of applications requiring flame retardancy.

Abstract: A personal hydration assembly includes a pair of reservoirs that each respectively contains water or fluid electrolytes and each of the reservoirs is removably attachable together. A pair of shoulder straps is each coupled to a respective one of the reservoirs and each of the shoulder straps can be extended over the user's shoulders thereby facilitating the pair of reservoirs to be worn on the user's back. A pair of drinking tubes is each in fluid communication with a respective one of the reservoirs thereby facilitating the user to drink either the water or the fluid electrolytes. A pair of waist belts is each attached to a respective one of the reservoirs for wearing around the user's waist when the shoulder straps are worn over the user's shoulders.

Abstract: Marking apparatus for marking tissue imaged through an imaging device including a viewing element in the form of a spacer having an imaging window which provides an imaging zone through which tissue can be imaged by an imaging probe. The apparatus can include a marker implement connected to a coupling device. In some embodiments, the coupling device is configurable to position the marker implement in a first position substantially out of the imaging window and a second position in the imaging zone of the imaging window. The marker implement can apply a mark when in the second position and thereby to tissue in the imaging zone while the apparatus remains in the imaging position on the tissue. The spacer can be length adjustable in order to change the depth of focus of the imaging probe, thereby to focus at different depths within a patient's skin.

Abstract: An optical arrangement, method and measurement system are disclosed. The arrangement includes a first input to receive a first beam from a frequency swept laser, a second input to receive a second beam from a fixed frequency pump laser source. A non-linear optical artifact receives and intermodulates the first and second beams to generate a third beam, the third being an inverted copy of the first beam mirrored relative to the fixed frequency of the pump laser source. A selective combining element outputs the first and third beams. The non-linear artifact or one or both of the lasers is selected or configured such that the optical frequency separation of the first and second beams satisfies the coherence length condition of the non-linear artifact.

Abstract: Devices, systems, and methods to predict a half-life or end of life for luminaire drivers are described. The drivers may include electronic drivers for light fixtures such as dimming controls that utilize electrolytic capacitors in the output circuit to smooth the output current and reduce changes in current amplitude. Half-life and end of life for the drivers may be predicted by monitoring failure variable indications of the driver and the luminaire light, including the light intensity depreciation of the light, and by evaluating the data from both the driver, light, and environment in which the driver and/or luminaire is installed to predict the most imminent half-life and/or end of life.

Abstract: Devices, systems, and methods to predict a half-life or end of life for luminaire drivers are described. The drivers may include electronic drivers for light fixtures such as dimming controls that utilize electrolytic capacitors in the output circuit to smooth the output current and reduce changes in current amplitude. Half-life and end of life for the drivers may be predicted by monitoring failure variable indications of the driver and the luminaire light, including the light intensity depreciation of the light, and by evaluating the data from both the driver, light, and environment in which the driver and/or luminaire is installed to predict the most imminent half-life and/or end of life.

Abstract: An engine mount includes a center pin, a main rubber element, and a housing. In embodiments, the main rubber element may include at least one joining plate with at least one tab, and may be configured to at least partially encapsulate the center pin and the at least one joining plate. The housing may be configured to receive and/or engage the main rubber element including the center pin and the at least one joining plate. The main rubber element may be secured to the housing via the at least one joining plate and/or the at least one tab.

Abstract: A position detection system is able to detect the three dimensional position of at least one target (10). Each target (10) is configured to act as a retro-reflector for light incident from any direction. At least one light emitter illuminates the at least one target (10) and at least one detector (24) is provided for detecting and taking measurements of light retro-reflected from a target (10). There is also provided a processor for processing measurements taken by each detector (24) to determine the three dimensional position of the at least one target (10).

Abstract: A measurement device (120) includes a light director and a spatial light modulator (130). The light director is disposed to direct light to the spatial light modulator (130) and the spatial light modulator (130) is disposed to receive light from the light director and to modulate it to form an intensity pattern. An optical element is disposed to receive light which formed the intensity pattern and is arranged to magnify the intensity pattern into a measurement space. A detector (142) is disposed to detect light reflected from the measurement space.

Abstract: An optical arrangement, method and measurement system are disclosed. The arrangement includes a first input to receive a first beam from a frequency swept laser, a second input to receive a second beam from a fixed frequency pump laser source. A non-linear optical artefact receives and intermodulates the first and second beams to generate a third beam, the third being an inverted copy of the first beam mirrored relative to the fixed frequency of the pump laser source. A selective combining element outputs the first and third beams. The non-linear artefact or one or both of the lasers is selected or configured such that the optical frequency separation of the first and second beams satisfies the coherence length condition of the non-linear artefact.

Abstract: A system and method for controlling lighting systems and predicting a life expectancy of a plurality of lighting devices are disclosed. The system may include at least one gateway that controls dimming levels of the lighting devices, and at least one of a plurality of luminaires and LEDs that communicates with the gateway via a dimming control interface. The system may further include a sensor subsystem that senses color channels and monitors at least one change in environment in real time, and at least one power meter that measures power in real time, each of which is connected to the gateway. At least one server may be connected to the gateway, and may calculate and predict lumen depreciation of the luminaires and LEDs, and reporting and changing display information associated with the luminaires and LEDs.

Abstract: A position detection system is able to detect the three dimensional position of at least one target (10). Each target (10) is configured to act as a retro-reflector for light incident from any direction. At least one light emitter illuminates the at least one target (10) and at least one detector (24) is provided for detecting and taking measurements of light retro-reflected from a target (10). There is also provided a processor for processing measurements taken by each detector (24) to determine the three dimensional position of the at least one target (10).

Abstract: A measurement device (120) includes a light director and a spatial light modulator (130). The light director is disposed to direct light to the spatial light modulator (130) and the spatial light modulator (130) is disposed to receive light from the light director and to modulate it to form an intensity pattern. An optical element is disposed to receive light which formed the intensity pattern and is arranged to magnify the intensity pattern into a measurement space. A detector (142) is disposed to detect light reflected from the measurement space.

Abstract: An attachment system for connecting a first member such as a lip plate of a mechanical digging device to a second member such as a ground engaging tool. The first member has a lug attached thereto, and the second member has a recess which is located about the lug A stabilizing member is located within a slot in the recess. A clamping member is between the lug and the stabilizing member, and includes a resilient portion such as a compression spring. A compressive force supplied to the resilient portion restricts the movement of the second member relative to the lug.

Abstract: A connection assembly for connecting a first member to a second member, such as a wear strip to a portion of an excavating device, is described. The second member has a protruding boss and the first member has a recess complementary in shape to the protruding boss. The first member has an associated first bearing surface and the second member has an associated second bearing surface. The first and second bearing surfaces are, in use, opposed and separated by a tapered gap. The connection assembly further includes a wedge-shaped locking member. The wedge-shaped locking member is sized to locate within the tapered gap and is provided with a driving means to permit tightening or loosening of the locking member within the tapered gap.

Abstract: An attachment system for connecting a first member such as a lip plate of a mechanical digging device to a second member such as a ground engaging tool. The first member has a lug attached thereto, and the second member has a recess which is located about the lug A stabilizing member is located within a slot in the recess. A clamping member is between the lug and the stabilizing member, and includes a resilient portion such as a compression spring. A compressive force supplied to the resilient portion restricts the movement of the second member relative to the lug.

Abstract: A tracking system is provided for tracking while determining the position of a point relative to a datum and includes a carriage (4) rotatably mounted on a frame (1) and which can rotate around a precision sphere (2). An interferometer (16) is mounted so as to rotate with the carriage (4), such that a mechanical center of rotation of the device and the measurement datum of the interferometer coincide at the same point.

Abstract: A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single spinneret. Such yarns may be used as direct-use yarns and as draw-feed yarns for preparing drawn flat yarns and draw-textured yarns.