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Thank you! As a radio hobbyist I’ve often wondered about the mechanics of RF transmission. I think it would be great if there was a way to visualize it.
Yes I recall the story, I searched again. The American Chemical Society brought back to -inum, while outside North America has been teached as -inium, as per IUPAC. Both is defined to be acceptable, no more right or wrong.
St. Elizabeth’s Hospital in O’Fallon, Ill. opened Saturday, Nov. 4, 2017. Photo provided by the hospital.
Increasing uptime also is a priority for Omax Corp. (Kent, WA). “With the addition of our solids-removal system, Omax has reduced downtime through mechanical garnet removal from the tank,” said Stephen Bruner, vice president of marketing for Omax. “The alternative would be to shut down your abrasive waterjet and manually shovel, or vac-truck, the garnet out of the tank.”
Collinsville girls soccer coach Clay Smith, voted top coach in the 2018 Best of Southwest Illinois. Paul Kopsky, STLhighschoolsports.com
Attendees couldn’t escape how “Smart” with a capital S has taken over the discussion of connectivity from the shop floor to management to remotely located suppliers. Major machine builders demonstrated how processes can be monitored, orders tracked, and data collected and analyzed on a real-time basis. And advances in automation are needed to keep up with the blazing speeds today’s fiber lasers are capable of.
ERIC GRALD and JOHN GOINGSLaser system reduces cycle time and laminate rework Large-volume Department of Defense (DoD) aerospace programs utilize automated fiber placement (AFP) and automated tape placement (ATP) machines to lay up large area structural composites using toughened bismaleimide (BMI) resins. The BMI prepreg composite is placed onto a tool, often over a period of several days, and then the component is bagged and cured in an autoclave to produce the part. Current fiber placement machines operate in large, open factories at room temperature. The BMI resin most commonly used in AFP has relatively poor tack at room temperature, leading to slower laminating speeds and the need for considerable manual rework. Current approaches to achieve the heating step (hot gas jets or large multi-kilowatt infrared [IR] heaters) limit prepreg feed rates, offer no control of the thermal profile, are thermally inefficient, and lead to significant AFP downtime. The ability to increase prepreg feed rates to the maximum possible associated with the AFP system would dramatically reduce overall production costs. Increased control of the thermal profile will eliminate hand-rework operations associated with unique geometric features.[Native Advertisement]
It all started with the Ansari XPrize. Wealthy space enthusiasts Anousheh and Amir Ansari offered $10 million to the first private enterprise, worldwide, “to build a reliable, reusable, privately financed, manned spaceship capable of carrying three people to 100 km [62 miles] above the Earth’s surface twice within two weeks,” says the Ansari XPrize website.
have you seen old saltwater resistive dimmers? they used to use them in theaters, basically steel rods in a triangle or inverted v, with the resistance increasing as you lift it out of the water.
My treadmill causes RF interference for my Ipad’s WiFi, does that mean my Ipad/Treadmill will kill me? (health jokes aside)
While we don’t condone sports cheating, we think that hiding a motor inside a standard bike is pretty cool. But it’s even more fun to think of how to catch the cheats. The Italian and French press have fixated on the idea of using thermal cameras to detect the heat. (Skip to 7:50 in the franceTVsport clip.) We suspect it’s because their reporters recently bought Flir cameras and are trying to justify the expense.