摘要:
A rotating screen, for use with a centrifugal fan of an engine, includes a hub having a rotational axis and a plurality of blades extending radially outwardly from the hub. Each of the blades includes a root adjacent the hub, a tip, a leading edge extending between the root and the tip, and a trailing edge extending between the root and the tip. The blades also include an airfoil shape. The rotating screen also includes a band concentric with the hub and interconnecting the tips of the respective blades.
摘要:
An aimed or aiming firearm can be detected before it is able to shoot. Wideband radar signals can be used to identify the barrel of a firearm when the radar antenna and barrel are aiming at or near each other. Signal processing correlates reflected signals to the characteristics of specific firearms of interest, and alerts the user when someone is pointing such a firearm at them. Modern wideband radar systems with fast signal processing speed can enable real-time detection of firearm threats in crowded and cluttered areas before they shoot, which has never before been possible. Related systems, apparatus, methods, and articles are also described.
摘要:
Stable and active arabinitol dehydrogenases (LAD) from Neurospora crassa and mutants thereof are disclosed. Arabinitol dehydrogenases are useful in the production of xylitol and ethanol from an arabinose containing substrate. Recombinant and heterologously expressed arabinitol dehydrogenases are useful in converting biomass into biofuels and other industrial food products.
摘要:
Stable and active arabinitol dehydrogenases (LAD) from Neurospora crassa and mutants thereof are disclosed. Arabinitol dehydrogenases are useful in the production of xylitol and ethanol from an arabinose containing substrate. Recombinant and heterologously expressed arabinitol dehydrogenases are useful in converting biomass into biofuels and other industrial food products.
摘要:
Disclosed herein are stabilized weapon mount systems that allow a gunner (i.e. operator of a weapon) to mount and operate a standard weapon in a manner similar to a stand-alone weapon while compensating for the motion of the platform. The system includes an aiming gimbal that is movable by an operator during stabilization into an aiming orientation directed toward a target and a stabilization gimbal nested within the aiming gimbal and adapted to securely couple to a weapon. The stabilization gimbal and aiming gimbal are mechanically coupled by a control unit such that the stabilization gimbal is moved by the control unit and the aiming gimbal is not moved by the control unit. A stabilization device automatically commands the control unit to move the stabilization gimbal relative to the aiming gimbal using the motors to correct for the base movement and maintain the aiming orientation directed toward the target.
摘要:
The present invention provides a control interface for one or more instruments that comprise an image acquisition system, the control interface consisting of kinesthetic controls that do not require visual attention. The control interface of the present invention maps kinesthetic controls such as sliders and knobs to a system computer and software running thereon which is directing the operation of individual imaging instruments.
摘要:
The present invention provides synchronization and control between the wavelength of a multi-wavelength illuminator and the image frames acquired by a video camera. In accordance with the present invention, the trailing edge of a camera expose-signal triggers a pre-loaded digital value to be output from a FIFO buffer. The digital value selects a particular illumination wavelength either directly or through a voltage from a digital to analog converter. The FIFO may be periodically refilled, or it may be a circular register.
摘要:
An aqueous based electrically conductive paint having substantially enhanced settling properties employing a nickel pigment and a surfactant having substantial unsaturation characteristics. Paint is held at 50.degree. F. or greater for at least one hour requires no aging before use. The paint finds particular application in providing EMI and RFI shielding for electrical components when applied to cabinetry housing such components.