International Ultramarine Corps

The International Ultramarine Corps, formerly the Ultramarine Corps, is a fictional team of superheroes published by DC Comics. They first appeared in DC One Million #2 (November 1998), and were created by Grant Morrison and Howard Porter.

History

The Corps was created by the U.S. as a government-sponsored group of superhumans to rival the more independent Justice League. Led by General Wade Eiling, the original members of the team were Flow, 4-D, Pulse 8 and Warmaker One. During a fight with the JLA, the UMC realised that Eiling was dangerously insane and that they were on the wrong side; they then sided with the League against their leader.

Having developed a mistrust of governments, the Corps subsequently declared themselves independent of any and all nations and built a free-floating city in which to dwell, which they named Superbia and set in the air above the ruins of Montevideo. They put out a call to other disaffected superheroes to join them in their city, and received a number of responses from around the globe, although the total population and demographics of Superbia are unknown.

Traffic flow (computer networking)

In packet switching networks, traffic flow, packet flow or network flow is a sequence of packets from a source computer to a destination, which may be another host, a multicast group, or a broadcast domain. RFC 2722 defines traffic flow as "an artificial logical equivalent to a call or connection."RFC 3697 defines traffic flow as "a sequence of packets sent from a particular source to a particular unicast, anycast, or multicast destination that the source desires to label as a flow. A flow could consist of all packets in a specific transport connection or a media stream. However, a flow is not necessarily 1:1 mapped to a transport connection." Flow is also defined in RFC 3917 as "a set of IP packets passing an observation point in the network during a certain time interval."

Conceptual description

A flow can be uniquely identified by the following parameters within a certain time period:

Rapping

Rapping (or emceeing,MCing,spitting bars,or rhyming) is "spoken or chanted rhyming lyrics". The components of rapping include "content", "flow" (rhythm and rhyme), and "delivery". Rapping is distinct from spoken-word poetry in that it is performed in time to a beat. Rapping is often associated with and a primary ingredient of hip-hop music, but the origins of the phenomenon can be said to predate hip-hop culture by centuries. It can also be found in alternative rock such as that of Cake, gorrilaz and the Red Hot Chili Peppers. Rapping is also used in Kwaito music, a genre that originated in Johannesburg, South Africa, and is composed of hip-hop elements.

Rapping can be delivered over a beat or without accompaniment. Stylistically, rap occupies a gray area between speech, prose, poetry, and singing. The word (meaning originally "to hit") as used to describe quick speech or repartee predates the musical form. The word had been used in British English since the 16th century. It was part of the African-American dialect of English in the 1960s meaning "to converse", and very soon after that in its present usage as a term denoting the musical style. Today, the terms "rap" and "rapping" are so closely associated with hip-hop music that many use the terms interchangeably.

CTA

CTA may refer to:

Science

Organisations

Tantalum carbide

Tantalum carbides form a family of binary chemical compounds of tantalum and carbon with the empirical formula TaC_x, where x usually varies between 0.4 and 1. They are extremely hard, brittle, refractory ceramic materials with metallic electrical conductivity. They appear as brown-gray powders which are usually processed by sintering. Being important cermet materials, tantalum carbides are commercially used in tool bits for cutting applications and are sometimes added to tungsten carbide alloys. The melting points of tantalum carbides peak at about 3880 °C depending on the purity and measurement conditions; this value is among the highest for binary compounds. Only tantalum hafnium carbide may have a slightly higher melting point of about 3942 °C, whereas the melting point of hafnium carbide is comparable to that of TaC.

Preparation

TaC_x powders of desired composition are prepared by heating a mixture of tantalum and graphite powders in vacuum or inert gas atmosphere (argon). The heating is performed at temperature of about 2000 °C using a furnace or an arc-melting setup. An alternative technique is reduction of tantalum pentoxide by carbon in vacuum or hydrogen gas atmosphere at a temperature of 1500–1700 °C. This method was used to obtain tantalum carbide back in 1876, but it lacks control over the stoichiometry of the product.

Saint-Bruno-de-Guigues Aerodrome

Saint-Bruno-de-Guigues Aerodrome, (TC LID: CTA4), is located 7 nautical miles (13 km; 8.1 mi) north of Saint-Bruno-de-Guigues, Quebec, Canada.

References