Context and question: Doubly fed electric motors have two independent multiphase winding sets, which contribute active (i.e., working) power to the energy conversion process, with at least one of the winding sets electronically controlled for variable speed operation. Two independent multiphase winding sets (i.e., dual armature) are the maximum provided in a single package without topology duplication. Doubly-fed electric motors are machines with an effective constant torque speed range that is twice synchronous speed for a given frequency of excitation. This is twice the constant torque speed range as singly-fed electric machines, which have only one active winding set.
What is one of the independent multiphase winding sets configured for?
Answer: variable speed operation
Context and question: There are other annual events, ranging from the Seattle Antiquarian Book Fair & Book Arts Show; an anime convention, Sakura-Con; Penny Arcade Expo, a gaming convention; a two-day, 9,000-rider Seattle to Portland Bicycle Classic, and specialized film festivals, such as the Maelstrom International Fantastic Film Festival, the Seattle Asian American Film Festival (formerly known as the Northwest Asian American Film Festival), Children's Film Festival Seattle, Translation: the Seattle Transgender Film Festival, the Seattle Gay and Lesbian Film Festival, and the Seattle Polish Film Festival.
How many bicyclists attend the Seattle to Portland Bicycle Classic?
Answer: 9,000
Context and question: The U.S. Digital Millennium Copyright Act (1998) and the European E-Commerce Directive (2000) provide online intermediaries with limited statutory immunity from liability for copyright infringement. Online intermediaries hosting content that infringes copyright are not liable, so long as they do not know about it and take actions once the infringing content is brought to their attention. In U.S. law this is characterized as "safe harbor" provisions. Under European law, the governing principles for Internet Service Providers are "mere conduit", meaning that they are neutral 'pipes' with no knowledge of what they are carrying; and 'no obligation to monitor' meaning that they cannot be given a general mandate by governments to monitor content. These two principles are a barrier for certain forms of online copyright enforcement and they were the reason behind an attempt to amend the European Telecoms Package in 2009 to support new measures against copyright infringement.
In the E.U., what are the governing principles for ISP's?
Answer:
mere conduit