gap-graded
71Photonic-crystal fiber — (PCF) is a new class of optical fiber based on the properties of photonic crystals. Because of its ability to confine light in hollow cores or with confinement characteristics not possible in conventional optical fiber, PCF is now finding… …
72Mount Mitchell (Queensland) — Mount Mitchell The eastern slopes of Mount Mitchell Elevation 1,168 m (3,832 ft) …
73Vulkathunha-Gammon Ranges National Park — The Gammon Ranges are part of the northern Flinders Ranges, immediately southwest of and adjacent to Arkaroola Sanctuary. They encompass some of the most rugged and spectacular country in South Australia.GeographyThe central ranges are of a… …
74Red River Trails — Métis drivers and ox carts at a rest stop The Red River Trails were a network of ox cart routes connecting the Red River Colony (the Selkirk Settlement ) and Fort Garry in British North America with the head of navigation on the Mississippi River …
75Air Alpes — Infobox Airline airline = Air Alpes image size = IATA = LP ICAO = ALP callsign = AIRALPES founded = 1961 commenced = ceased = 1981 hubs = secondary hubs = focus cities = frequent flyer = lounge = alliance = subsidiaries = fleet size =… …
76children's literature — Body of written works produced to entertain or instruct young people. The genre encompasses a wide range of works, including acknowledged classics of world literature, picture books and easy to read stories, and fairy tales, lullabies, fables,… …
77Marlboro Mountains — Range Illinois Mountain, the second highest ridge of the Marlboro Mountains, seen from Tony Williams Park in Lloyd, New York …
78fill — [[t]fɪ̱l[/t]] ♦♦ fills, filling, filled 1) V ERG If you fill a container or area, or if it fills, an amount of something enters it that is enough to make it full. [V n with n] Fill a saucepan with water and bring to a slow boil... [V n] She made… …
79Information retrieval — This article is about information retrieval in general. For the fictional government department, see Brazil (film). Information retrieval (IR) is the area of study concerned with searching for documents, for information within documents, and for… …
80Kurdistan Workers Party — Infobox militant organization name=Kurdistan Workers Party Partiya Karkerên Kurdistan, (PKK) logo=PKK.svg caption=The current PKK flag used since 2005 dates=1978 present leader=The current official leader is Murat Karayilan. Abdullah Öcalan (also …
