** Luxembourg — no voltage change at the border ( the line Arlon-Luxembourg is at 3 kV DC and the line Gouvy-Luxembourg is at 25 kV AC )

Despite the official names " National Comics " and " National Periodical Publications ", the line used the logo " Superman-DC " throughout ( the DC logo could be seen on their covers and ads as early as 1940 ), and the company became known colloquially as DC Comics for years before the official adoption of that name in 1977.

* DC Focus ( 2004 – 2005 ; merged with main DC line )

The off-hook circuitry has a low resistance ( less than 300 ohms ) which causes a direct current ( DC ), which comes down the line ( C ) from the telephone exchange.

So, the phone draws no current when it is on hook ( a DC voltage is continually connected to the line ), but exchange circuitry ( D2 ) can send an AC voltage down the line to ring for an incoming call.

At the same time the DC voltage across the line causes a DC current which is split between the resistor-coil ( A8-A3 ) branch and the microphone-coil ( A2-A3 ) branch.

For a long transmission line, the lower losses and reduced construction cost of a DC line can offset the additional cost of converter stations at each end.

Since the power flow in a DC link is controlled independently of the phases of the AC networks at either end of the link, this stability limit does not apply to a DC line, and it can transfer its full thermal rating.

One prominent example of such a transmission line is the Pacific DC Intertie located in the Western United States.

This is used to couple asynchronously operated power grids or for connecting power grids of different frequencies where no DC transmission line is necessary.

* If the high and low signal levels have the same voltage with opposite polarity, coded signals have zero average DC voltage, thus reducing the necessary transmitting power and minimizing the amount of electromagnetic noise produced by the transmission line.

The simplest possible line code, called unipolar because it has an unbounded DC component, gives too many errors on such systems.

Most line codes eliminate the DC component — such codes are called DC-balanced, zero-DC, DC-free, zero-bias, DC equalized, etc.

They are there merely to restore DC continuity to the line so that it may be tested with regular equipment.

" One " is represented by one physical level ( such as a DC bias on the transmission line ).

Simple DC signalling can be achieved on a telecommunications line in a similar way to phantom powering of microphones.

The boost converter attempts to maintain a constant DC bus voltage on its output while drawing a current that is always in phase with and at the same frequency as the line voltage.

Drain efficiency is the ratio of output RF power to input DC power when primary input DC power has been fed to the drain of an FET.

Based on this definition, the drain efficiency cannot exceed 25 % for a class A amplifier that is supplied drain bias current through resistors ( because RF signal has its zero level at about 50 % of the input DC ).

The " O " Shout has traveled from across the DC Metro Area, from Frostburg, Maryland, to Salisbury, Maryland.

1984 – 2000 ) has even more potential starting points, but is generally agreed to be the publication of Frank Miller's Batman: The Dark Knight Returns and Alan Moore's Watchmen by DC Comics in 1986, as well as the publication of DC's Crisis on Infinite Earths, written by Marv Wolfman with pencils by George Pérez.

DC currently has its headquarters at 1700 Broadway, Midtown Manhattan, New York City.

Apocryphal legend has it that in 1961, either Jack Liebowitz or Irwin Donenfeld of DC Comics ( then known as National Periodical Publications )

Kingman Reef has the status of an unincorporated U. S. possession of the United States, administered from Washington, DC by the U. S. Department of Interior.

To that end, he has worked on projects with Image Comics, Marvel Comics, and DC Comics, as well as developing a manga adaptation of the film Star Wars Episode I: The Phantom Menace.

He has also written for the DC Comics character Green Lantern including in his stories hard science fiction concepts such as universal entropy and the redshift effect, which are unusual in comic books.

In the Post-Flashpoint DC Universe, Luthor appears as a representative the government has recruited to investigate and bring down Superman.

For virtually his entire publication history, he has been depicted as the most intelligent human in the DC Universe, and as one of the most intelligent beings of any planet or species.

He has also been voiced in animation by Jackson Beck in the 1960s series The New Adventures of Superman, Stan Jones in the 1970s / 1980s Super Friends franchise, Michael Bell in the 1988 Superman animated series, and by Clancy Brown in the 1990s / 2000s DC animated universe, as well as a 2007 episode of The Batman and the 2009 direct-to-DVD animated feature Superman / Batman: Public Enemies, among others.

When it came to the issue of slavery in DC and slavery in the United States, he was against its abolition, and said so in his Inaugural Address in 1837: " I believed it a solemn duty fully to make known my sentiments in regard to it < nowiki > ,</ nowiki > and now, when every motive for misrepresentation has passed away, I trust that they will be candidly weighed and understood.

Neither has a filament, and each may require a DC potential of about 4 kV for operation.

The food and beverage industry holds considerable clout in Washington, DC, as it has contributed more than $ 50 million to legislators since 2000.

Suriname has an embassy in Washington, DC

Operational experience with the DC / X experimental rocket has caused a number of SSTO advocates to reconsider hydrogen as a satisfactory fuel.

The DC current through the resistor-coil branch has no effect on the incoming audio signal.

But the DC current passing through the microphone is turned into AC current ( in response to voice sounds ) which then passes through only the upper branch of the coil's ( A3 ) primary winding, which has far fewer turns than the lower primary winding.

** A guard takes his place at the Tomb of the Unknowns in Washington, DC ; continuous guard has been maintained there ever since.

TeleSUR has regional offices in Caracas, Bogotá, Brasília, Buenos Aires, Mexico City, Havana, La Paz, Lima, Quito, Managua and Washington DC.

It therefore has no DC component, and is self-clocking, which means that it may be inductively or capacitively coupled, and that a clock signal can be recovered from the encoded data.

* 350 kV DC switchyard equipment, including DC smoothing reactor

Saturable reactors provide a very simple means to remotely and proportionally control the alternating current ( AC ) through a load such as an incandescent lamp ; the AC is roughly proportional to the direct current ( DC ) in the control winding.