Abstract: Aspects disclosed herein provide a learning management system associated with a learning environment. The learning management system may be accessed via a credentialed sign-in procedure. Once the credentials are verified, a user may be provided a tailored experience based on their account. The learning management system may provide offerings of different training scenarios and also for tracking and reviewing of assessments associated with completed training scenarios.

Abstract: A milling machine can include a frame; a cutting rotor coupled to the frame, the cutting rotor configured to be lowered a selected distance into a surface; and a controller, the controller being configured to control a plunge rate of the cutting rotor into the surface based on a measured density of the surface.

Abstract: A milling machine can include a frame; a cutting rotor coupled to the frame, the cutting rotor configured to be lowered a selected distance into a surface; and a controller, the controller being configured to control a plunge rate of the cutting rotor into the surface based on a measured density of the surface.

Abstract: An imaging system illuminates an object with infrared light to enhance visibility of buried structure beneath the surface of the object, and projects a visible light image of the buried structure onto the surface of the object. The system may include an infrared light source for generating the infrared light and a structure for diffusing the infrared light. The diffusing structure may include one or more layers of diffusing material for diffusing the light. The system further includes a video imaging device for receiving the infrared light reflected from the object and for generating a video image of the buried structure based on the reflected infrared light. The buried structure may be a subcutaneous blood vessel. A calibration procedure is described as well as embodiments for ensuring that the object is maintained in focus at the correct distance.

Abstract: A method and apparatus for assembling a first thermoformed workpiece, such as a tab closure, to a second thermoformed workpiece, such as a lid.

Abstract: A wind turbine comprising: (1) a support portion; (2) a hub that is mounted to rotate adjacent the support portion; and (3) at least one turbine blade mounted adjacent the hub and that comprises both a rotor and a sail that is mounted adjacent the rotor. The rotor may be in the shape of an airfoil, and the sail is preferably mounted to be selectively extended and retracted adjacent the rotor. The wind turbine may include a boom that extends adjacent the rotor. In one embodiment, the sail is mounted so that the sail is stored adjacent within, or adjacent a rear surface of, the boom when the sail is in a retracted position. The exterior surface of the boom may be substantially in the shape of an airfoil. In one embodiment, the wind turbine is configured to selectively extend or retract its sails in response to varying weather conditions.

Abstract: An imaging system illuminates an object with infrared light to enhance visibility of buried structure beneath the surface of the object, and projects a visible light image of the buried structure onto the surface of the object. The system may include an infrared light source for generating the infrared light and a structure for diffusing the infrared light. The diffusing structure may include one or more layers of diffusing material for diffusing the light. The system further includes a video imaging device for receiving the infrared light reflected from the object and for generating a video image of the buried structure based on the reflected infrared light. The buried structure may be a subcutaneous blood vessel. A calibration procedure is described as well as embodiments for ensuring that the object is maintained in focus at the correct distance.

Abstract: A high throughput, compact image display apparatus comprises a source unit to generate a spatially uniform light beam that propagates along a first beam path in a first direction. The image display apparatus also comprises an imaging unit to collect and focus the light beam. The imaging unit includes a first refractive optical element disposed in the first beam path, a second refractive optical element disposed in the first beam path, a first reflecting mirror disposed in the first beam path, and a second reflecting mirror, having a concave reflecting surface, disposed in a second beam path defined by the first reflecting mirror and the second reflecting mirror. The second beam path is oriented in a second direction different from the first direction. The image display apparatus also comprises a digital micromirror device (“DMD”) to receive the light beam reflected by the second reflecting mirror. The DMD is disposed in a third beam path defined by the second reflecting mirror and the DMD.

Abstract: A method and apparatus for assembling a first thermoformed workpiece, such as a tab closure, to a second thermoformed workpiece, such as a lid.

Abstract: A low f-number, single-element, catadioptric condenser lens (30) with four optical surfaces (21-24), which is capable of collecting light at large angles and large pupil diameters. Two of the four surfaces (22, 23) are reflective surfaces immersed in the lens refractive material (25), while the other two surfaces (21, 24) are refractive surfaces and fabricated on the surface of the lens. Two embodiments of the lens are disclosed; a low-obscuration type and a wide-field type. This condenser lens provides improved light collection efficiency overall and has lower obscuration in the center portion of the reformed light source (26), as well as improved optical aberration and stray light properties. The integration of the optical surfaces into a single package results in a more reliable and lower cost condenser lens.

Abstract: A sequential color display system using three spatial light modulators and dichroic filters to sequentially provide a primary color light beam to a projection spatial light modulator. A set of dichroic filters separates a white light beam into primary colored light beams. Each primary colored light beam is modulated by a spatial light modulator to selectively allow it to travel to a second set of dichroic filters. The second set of dichroic filters recombines the primary color light beams—only one of which is typically active at any given time—to form a sequential color light beam. A projection spatial light modulator selectively modulates the sequential color light beam to form a sequential color image projected onto an image plane.

Abstract: An image simulation system 20 for testing sensor systems 26 and for training image sensor personnel wherein synthetic image data is generated by a scene generator 21 and projected by an image projector 23. The image projector 23 uses a digital micromirror device array 27 to modulate the incident energy and create an image. Four modulation schemes are discussed including digital pulse-width modulation, phase contrast modulation, full complex modulation, and analog modulation. The digital pulse width modulation technique will typically require synchronizing the image sensor and the image projector. Phase contrast modulation, full complex modulation, and analog modulation do not require synchronizing the image projector 23 and the sensor system 26. Phase contrast modulation and full complex modulation have the capability to produce phase information within the image. The image simulation system 20 can produce high contrast images and is more flexible than prior art system.