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Emergency Management Advanced Academy graduates take time for a group photo during the graduation ceremony at the North Courthouse Public Library in Chesterfield.
Army researchers ready a unique tiltrotor model to support analysis and design of advanced tiltrotor aircraft, a possible key to achieving Army modernization goals for Future Vertical Lift. (U.S. Army illustration)
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7 Pages of work and information about me, including an interview :)
Pretty proud of this too, if people come round and ask what I do, they can just read about me hehe
Advanced spices starting from bay leaf (the green leaves up top) clockwise: whole cinnamon and its powdered form (the little pile on the left), cloves, nutmeg powder, paprika powder mild, paprika powder strong and caraway seeds.... (taken from my blog at www.burntmouth.com)
Wipers, Tork Advanced Cuisine Foodservice Wiper with Microban from www.torkusa.com. Visit the Tork Better Business Center at: betterbusiness.torkusa.com for business tips and advice, your profit is our priority.
Hill Aerospace Museum
PEACEKEEPER ADVANCED INERTIAL REFERENCE SPHERE (AIRS)
The Advanced Inertial Reference Sphere (AIRS) was part of a highly accurate inertial guidance system designed for use in the LGM-118A Peacekeeper missile for precision nuclear strikes against enemy targets.
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The AIRS (Advanced Inertial Reference Sphere) is the most accurate inertial navigation (INS) system ever developed, and perhaps marks the end of a long process of continuous refinement of INS technology. The AIRS was designed for use in the LGM-118A Peacekeeper ICBM.
The most novel aspect of the AIRS is that it has no gimbals. Gimbals are pivots that are provided for each of three spatial axes so that the guidance platform can move freely in all directions (and thus maintain its absolute alignment with the outside world). The AIRS consists of a beryllium sphere that floats in a fluorocarbon fluid within an outer shell and can thus rotate in any direction. The importance of this innovation is that it eliminates the possibility of gimbal lock (where the axes of two gimbals line up and destroy the three-dimensional freedom of motion), and is free from arbitrary limits to range of motion found in some gimbal designs.
The temperature of the fluid is controlled with extreme accuracy by transfer of heat from the fluid through "Power shells" to freon-cooled heat exchangers. The alignment of the sphere is controlled by three hydraulic thrust valves directed by the inertial sensors in the sphere.
Like other INS systems, the sphere houses three accelerometers and three gyroscopes. The accelerometer design is called a SFIR (specific force integrating reciever). This is essentially the same approach as the pendulous integrating gyro accelerometer (of PIGA) used in the Minuteman II. The SFIR/PIGA works by measuring the rate of precession (and thus force applied) to a gyroscope at right angles to its axis of rotation. The gyroscope is a floated gas bearing gyroscope design.
Students in Advanced Microbiology class, GRAM stain soil samples on slides and exam soil to distinguish and classify bacterial species in the Biology Lab inside Lab Sciences Building at the UW-Green Bay campus on October 21, 2020.