ATC may refer to:
ATC2K is an acronym for the Oregon Scientific All-Terrain-Camera 2000, a pocket-sized camera which can be used as a helmet cam or action cam.
The ATC2K is made waterproof through the use of two O-rings coated in silicone grease. The ATC2K is waterproof to 3 meters (10 feet).
The ATCK2 records directly onto an SD card. The ATC2K supports SD cards of up to 2GB and has 32mb of inbuilt memory.
The ATC2K offers 3 resolutions (640×480, 320×240, 160×120) and 2 frame rates (30fps and 15fps). On the highest settings a 2GB SD card would record an hours worth of footage.
The original version was not compatible with existing technologies such as RAM Mount hardware, but had its own mounting system. The 2008 version and newer ATC3K and ATC5K cameras include a tripod mount that can be used with a universal tripod screw.
Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external inputs. ATC systems tend to integrate various cab signalling technologies and they use more granular deceleration patterns in lieu of the rigid stops encountered with the older automatic train stop technology. ATC can also be used with automatic train operation (ATO) and is usually considered to be the safety-critical part of the system.
Over time there have been many different safety systems labeled as "automatic train control". The first was used from 1906 by the Great Western Railway, although it would now be referred to as an AWS (automatic warning system). The term is especially common in Japan, where ATC is used on all Shinkansen (bullet train) lines and on some conventional rail lines as a replacement for ATS.
The accident report for the 2006 Qalyoub accident mentions an ATC system.
The Kawasaki Ninja 250R (previous generations had market-specific names) is a motorcycle originally introduced by Kawasaki in 1983. As the marque's entry-level sport bike, the motorcycle has undergone few changes throughout its quarter-century lifetime, having received only three substantial redesigns. In some markets the Ninja 250 has been succeeded by the Ninja 300.
Since 2008, the bike is marketed as the Ninja 250R in all markets. It is also referred to by its platform designation, EX250, to which a generational suffix is attached. In the United States, previous models (EX250-E/F/G/H) were already being marketed as members of the Ninja family of sport bikes, while outside of the U.S. the bike was known variously as the ZZR-250, ZX-250, or as the GPX-250R. One of the earliest models, the EX250-C, was given the name GPZ-250.
The Ninja 250R's particular ergonomics, chassis design, and engine placement have resulted in a motorcycle that straddles the standard and sport classes. The Ninja's riding posture also falls between standard and sport.