摘要:
An arrangement for improving performance of a sensor operative for collecting light from a target to generate a data signal in a presence of ambient light, includes a sample and hold circuit for operating the sensor during a sampling time period in which the sensor only collects the ambient light to generate an ambient signal, and during a holding time period in which the sensor collects both the ambient light and the light from the target to generate a composite signal comprised of the ambient signal and the data signal; and a subtracting circuit operative for subtracting the ambient signal from the composite signal to produce the data signal as an output.
摘要:
An arrangement for improving performance of a sensor operative for collecting light from a target to generate a data signal in a presence of ambient light, includes a sample and hold circuit for operating the sensor during a sampling time period in which the sensor only collects the ambient light to generate an ambient signal, and during a holding time period in which the sensor collects both the ambient light and the light from the target to generate a composite signal comprised of the ambient signal and the data signal; and a subtracting circuit operative for subtracting the ambient signal from the composite signal to produce the data signal as an output.
摘要:
Red, blue and green lasers respectively emit a plurality of red, blue and green laser beams having respective output powers. The beams are optically focused and collinearly arranged to form a composite beam which is swept by a pair of scan mirrors in a pattern of scan lines on a projection surface, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the composite beam to produce an image. A safety circuit detects a malfunction of at least one of the lasers and the scan mirrors, and deenergizes the at least one of the lasers and the scan mirrors upon detection of the malfunction.
摘要:
Red, blue and green lasers respectively emit a plurality of red, blue and green laser beams having respective output powers. The beams are optically focused and collinearly arranged to form a composite beam which is swept by a pair of scan mirrors in a pattern of scan lines on a projection surface, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the composite beam to produce an image. A safety circuit detects a malfunction of at least one of the lasers and the scan mirrors, and deenergizes the at least one of the lasers and the scan mirrors upon detection of the malfunction.
摘要:
A new transcription factor coding gene induced by water deficit or abscisic acid of Helianthus annuus, having a homeodomain associated to a leucine zipper, was characterized. The transcription factor is useful to be cloned in DNA constructions for transforming host cells and plants. The transgenic plants comprising the transcription factor gene are tolerant and resistant to harmful environmental conditions such as water stress and high salinity. A nucleic acid promoting sequence is also provided wherein the sequence is induced by water deficit or abscisic acid. Constructions, host cells and transgenic plants that comprise the transcription factor gene are provided.
摘要:
A system and method are provided for reading at least one optical code, including an omnidirectional optical code scanner system for illuminating, scanning and decoding at least one optical code within a field of view of the scanning system and oriented in an orientation included in a set of multiple orientations. The scanner system includes an actuator assembly having circuitry for providing for user selection of a mode selected from the group of modes consisting of: an omnidirectional mode for performing a read operation for reading an optical code oriented in any orientation included in the set of multiple orientations, a restricted omnidirectional mode for performing a read operation for reading the optical code when oriented only in an orientation of a reduced set of the set of multiple orientations; and an aim mode for illuminating a target object and disrupting a corresponding read operation; and circuitry for generating a signal indicative of the mode selection. The scanner system further includes at least one processor for operating the scanning system in the selected mode in accordance with the signal indicative of the mode selection.
摘要:
An omnidirectional scanning system and method are provided for reading at least one optical code within a field of view of the scanning system and oriented in an orientation included in a set of multiple orientations. The omnidirectional scanning system includes at least one processor for operating the scanning system in at least two modes including a first mode which is a non-restricted omnidirectional scan mode for reading the at least one optical code oriented in any orientation of the set of multiple orientations, and a second mode which is a restricted omnidirectional scan mode for reading the at least one optical code oriented in an orientation of a selectable reduced set of the set of multiple orientations. The method includes the steps of operating the system in a mode selected from the at least two modes including the first mode and the second mode.
摘要:
In a rotary composter having a horizontally elongated rotatable cylindrical drum, material is fed from a hopper into the drum through an opening in a stationary end plate having an annular marginal area which overlaps, in sealing relationship, an annular intake end wall extending inward from the internal wall of the drum from a location adjacent to an intake end of the drum. At an exit end of the drum material passes through a central opening in an annular exit end wall and falls by gravity onto a cylindrical screen which is fixed to, and rotates with, the exit end wall. The annular end walls are in axial register with external trunnions on the drum which ride on pairs of supporting rollers. The exit end rollers allow for axial expansion of the drum. The interior wall the drum is lined with a rubber.
摘要:
A universal mounting interface for rope cleats on water vessels, docks, or other fixed structures. The current invention provides a cleat saddle from which spars or poles are extended and linked at a flexible but resilient arch connection to fend off the vessel from a dock or another vessel. The mounting interface may be seated in overlying relation to a boat cleat and held in place by any mounting means. The current invention further provides elbows connecting the mounting interface to the spars and acts as a juncture of resilience to external forces. Rotation channels in one or more of the components allow rotation and flexibility to resisting the external forces. Additionally, one or more of the components can have strength enhancing aspects to prevent bending or manipulation of the components in response to external forces. The goal is to provide a constant, though relatively flexible, distance between two objects.
摘要:
In a vacuum unit for use in drawing a vacuum on a steam sterilizer, a pump circulates water through an ejector and a reservoir. Fresh water is injected at the pump inlet to maintain a low temperature in the ejector so that it can operate efficiently. Excess water is taken from a location adjacent the bottom of the reservoir through an internal dip tube, and passed through a U-shaped conduit that serves as a condensate trap. To maintain the water discharge temperature below a predetermined level, fresh water is injected into the U-shaped conduit through a valve controlled by a temperature sensor downstream from the water injection point.