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CANDU reactor

The CANDU is a Canadian pressurized heavy-water reactor design used to generate electric power. The acronym refers to its use of uranium fuel. CANDU reactors were first developed in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited, the Hydro-Electric Power Commission of Ontario, Canadian General Electric, other companies. There have been two major types of CANDU reactors, the original design of around 500 MWe, intended to be used in multi-reactor installations in large plants, the rationalized CANDU 6 in the 600 MWe class, designed to be used in single stand-alone units or in small multi-unit plants. CANDU 6 units were built in Quebec and New Brunswick, as well as Pakistan, South Korea and China. A single example of a non-CANDU 6 design was sold to India; the multi-unit design was used only in Ontario and grew in size and power as more units were installed in the province, reaching ~880 MWe in the units installed at the Darlington Nuclear Generating Station. An effort to rationalize the larger units in a fashion similar to CANDU 6 led to the CANDU 9.

By the early 2000s, sales prospects for the original CANDU designs were dwindling due to the introduction of newer designs from other companies. AECL responded by moving to the Advanced CANDU reactor design. ACR failed to find any buyers. In October 2011, the Canadian Federal Government licensed the CANDU design to Candu Energy, which acquired the former reactor development and marketing division of AECL at that time. Candu Energy offers support services for existing sites and is completing stalled installations in Romania and Argentina through a partnership with China National Nuclear Corporation. SNC Lavalin, the successor to AECL, is pursuing new Candu 6 reactor sales in Argentina, as well as China and Britain. Sales effort for the ACR reactor has ended; the basic operation of the CANDU design is similar to other nuclear reactors. Fission reactions in the reactor core heat pressurized water in a primary cooling loop. A heat exchanger known as a steam generator, transfers the heat to a secondary cooling loop, which powers a steam turbine with an electric generator attached to it.

The exhaust steam from the turbines is cooled and returned as feedwater to the steam generator. The final cooling uses cooling water from a nearby source, such as a lake, river, or ocean. Newer CANDU plants, such as the Darlington Nuclear Generating Station near Toronto, use a diffuser to spread the warm outlet water over a larger volume and limit the effects on the environment. Although all CANDU plants to date have used open-cycle cooling, modern CANDU designs are capable of using cooling towers instead. Where the CANDU design differs from most other designs is in the details of the fissile core and the primary cooling loop. Natural uranium consists of a mix of uranium-238 with small amounts of uranium-235 and trace amounts of other isotopes. Fission in these elements releases high-energy neutrons, which can cause other 235U atoms in the fuel to undergo fission as well; this process is much more effective when the neutron energies are much lower than what the reactions release naturally. Most reactors use some form of neutron moderator to lower the energy of the neutrons, or "thermalize" them, which makes the reaction more efficient.

The energy lost by the neutrons during this moderation process heats the moderator and is extracted for power. Most commercial reactor designs use normal water as the moderator. Water absorbs some of the neutrons, enough that it is not possible to keep the reaction going in natural uranium. CANDU replaces this "light" water with heavy water. Heavy water's extra neutron decreases its ability to absorb excess neutrons, resulting in a better neutron economy; this allows CANDU to run on unenriched natural uranium, or uranium mixed with a wide variety of other materials such as plutonium and thorium. This was a major goal of the CANDU design; this presents an advantage in nuclear proliferation terms, as there is no need for enrichment facilities, which might be used for weapons. In conventional light-water reactor designs, the entire fissile core is placed in a large pressure vessel; the amount of heat that can be removed by a unit of a coolant is a function of the temperature. Building a pressure vessel of the required size is a significant challenge, at the time of the CANDU's design, Canada's heavy industry lacked the requisite experience and capability to cast and machine reactor pressure vessels of the required size.

This issue was so major that the small pressure vessel intended for use in the NPD prior to its mid-construction redesign could not be fabricated domestically and had to be manufactured in Scotland instead, domestic development of the technology required to produce pressure vessels of the size required for commercial-scale heavy water moderated power reactors was thought to be unlikely. In CANDU the fuel bundles are instead contained in much smaller metal tubes about 10 cm diameter; the tubes are contained in a larger vessel containing additional heavy water acting

Kevin Clifton

Kevin Clifton is an English professional dancer born in Waltham, near Grimsby, Lincolnshire. He was a professional dancer on the BBC TV series Strictly Come Dancing, having worked as an assistant choreographer, he has featured on Burn the Floor. He was given the nickname "Kevin from Grimsby". On 15 December 2018, Clifton won the sixteenth series of Strictly with his celebrity partner, Stacey Dooley, he appeared in every year's final from when he joined the show in 2013, with the exception of 2017 and 2019. He announced on 6 March 2020 that he was leaving the show citing that he wanted to focus on “other areas of his career”. Clifton started dancing ballroom and Latin as a child in his home village of Waltham, near Grimsby, taught by his parents, former World Champions Keith and Judy Clifton, he competed nationally and internationally as a child partnering his sister Joanne. When they both chose to move on to different partners he chose Latin as his primary dance style so as not to directly compete against his sister.

He was a Youth World Number 1 and four time British Latin Champion and won International Open titles in Italy, Spain, Sweden, France, Hong Kong, Singapore, Slovakia and Belgium. At the time of his retirement from competitive dancing in 2007, he was ranked 7th in the world. In 2010, Clifton made his musical theatre debut in Dirty Dancing The Musical at the Aldwych Theatre in London's West End, where he partnered BBC1's So You Think You Can Dance winner, Charlie Bruce. From January 2008 to June 2013, Clifton and his future wife Karen Hauer were principal dancers of the Burn The Floor Dance Company, performing in the show's record breaking Broadway run as well as starring at the Shaftesbury Theatre in London's West End, he performed with the show in Japan, South Africa and the United States, as well as making guest appearances on Dancing with the Stars in the United States and So You Think You Can Dance in the Netherlands. They rejoined Burn The Floor as principal dancers for a short tour of Australia and Japan in Spring 2014.

He appeared on Series 5 of Hacker Time. In 2013, Clifton was partnered with Susanna Reid, he had auditioned for the show with his partner Karen Hauer but they had only needed a female dancer at the time, so he was instead employed as a choreographer for the show in 2012. In the 2013 Blackpool performance of the show he was joined in the opening dance by his family. On the same show and Clifton scored 39/40 for their paso doble, putting them at the top of the leaderboard, he won the 2013 Strictly Come Dancing Pro Challenge becoming the Guinness World Records holder for most Drunken Sailors in 30 seconds The couple's popularity ensured they reached the final, on 21 December, where they finished as runners up with Natalie Gumede behind model Abbey Clancy. In 2014's series 12 of Strictly Come Dancing Clifton was paired with pop star Frankie Bridge, they were declared the runners-up with Simon Webbe, beaten by Pasha Kovalev. In 2015, Clifton married to co-professional dancer Karen Hauer, returned for the thirteenth series of the show and was partnered up with EastEnders actress Kellie Bright.

Bright and Clifton scored a perfect 40 for their Tango and Showdance and finished as joint runners up with Georgia May Foote and Giovanni Pernice. Clifton has taken part in the'Strictly live tour'. For the 2014 tour he continued his partnership with Susanna Reid, he was due to dance with Frankie Bridge again for the 2015 tour however she had to pull out due to pregnancy, he instead danced with series 6 contestant Rachel Stevens. Clifton and Bridge were however reunited for the 2016 tour. In 2016 Clifton again took part in Strictly Come Dancing, where he partnered singer and media personality Louise Redknapp. On 17 December 2016, Clifton became the first professional dancer in the show's history to compete in four consecutive finals. For the fourth time, Clifton finished as a series runner-up, after he and Redknapp lost out in the final result to Ore Oduba and Ore's partner, Joanne. For series 15, in 2017, Clifton was partnered with Scottish comedian Susan Calman. Calman expressed her great delight at the partnering with Clifton.

They were eliminated after a dance-off against Alexandra Burke and Gorka Márquez. This was the first time. For series 16, in 2018, Clifton was partnered with English television presenter and journalist, Stacey Dooley; the couple were the series winners. He partnered TV host, Anneka Rice, for the series seventeen, in 2019, they were the second couple to be eliminated after the judges choose to save David James and Nadiya Bychkova, he did however return to dance with former footballer Alex Scott for weeks 6 & 7 while Scott's normal partner Neil Jones was recovering from an injury to his Calf muscle. Following this series, Clifton chose to quit the show to “focus on other projects”. Celebrity partner Susanna Reid.

Yellowfin grouper

The yellowfin grouper is a coral reef fish native to the western Atlantic Ocean, the Caribbean Sea, the Gulf of Mexico. It is a denizen of the deeper reef areas, but it may venture into shallower waters during the cooler seasons; the fish is variable in color, but is similar in appearance to the black grouper. It is distinguishable by the bright yellow trim on the pectoral fins; the yellowfin grouper is a hearty fish reaching 10 kg. It is one of the more popular Gulf gamefishes, it has been known to be a cause of ciguatera toxin poisoning, however. An attractive animal, the yellowfin grouper is a popular aquarium fish; this species is one of the main catches in the fishing industry in Bermuda. It is considered overfished, is threatened in several areas. Mycteroperca venenosa FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006. IUCN Red List 2004 Photos of Yellowfin grouper on Sealife Collection


WXJM is an American non-commercial educational radio station licensed to serve Harrisonburg, United States. The station, established in 1990, is operated by James Madison University; the station's broadcast license is held by the James Madison University Board of Visitors. WXJM station management reports to the JMU Media Board, under the jurisdiction of the University Board of Visitors. WXJM receives guidance and technical support from WMRA. WXJM broadcasts a variety music format to the greater Harrisonburg metropolitan area. WXJM's tower and antenna sits atop Burruss Hall on the JMU campus; the station operates with an effective radiated power of 390 watts. Although the local-grade contour of the station is about 6 miles, it can be heard with a good radio in Staunton, 20 miles southwest of the station; the forerunner of WXJM was the audio stream played over a few James Madison University campus buildings' public address systems to give interested students some practice with broadcasting. In the late 1980s and early 1990s, the "Dining Hall DJ's" advocated for airborne-broadcast capability.

Early planners sought a callsign of WJMR for James Madison Radio but were dismayed to learn that the letters were taken by an existing station in Wisconsin, WJMR-FM. The Board of Visitors of James Madison University filed an application with the Federal Communications Commission to construct a new FM radio station in March 1988; this station would broadcast with 260 watts of effective radiated power from an antenna 14.5 meters in height above average terrain. The FCC granted the original construction permit for this new station on September 1, 1989, with a scheduled expiration date of March 1, 1991; the station was assigned the callsign "WZJM" by the FCC on October 31, 1989. Just a few weeks on November 17, 1989, this was changed to the current "WXJM" callsign. FM radios could pick up the signal, but reception off-campus was possible. In March 1990, the station sought an upgrade to an ERP of 390 watts and an antenna HAAT of 20 meters; the FCC authorized these changes in July 1990. In October 1990, the station was nearing completion and asked the FCC to allow it to lower its antenna to 19 meters in HAAT.

On October 10, 1990, WXJM applied for its license to cover. After the authorized modifications to the antenna were completed, the FCC granted the station its broadcast license on August 6, 1991; some of the early student radio announcers banded together in a club called the "Freak Possie". The radio Freaks turned media arts class performance-art projects into pickets and absurdist attention-getting events to get publicity and to advocate for a stronger off-campus broadcast capability. Events included mass weddings to bananas and speeches by fursuit-wearing performers including a Three-Eyed Antlered Pig who mocked the university's official mascot, the Duke Dog. In 2003, WXJM was levied a $3,000 forfeiture by the FCC due to public file documents which were "either filed late or are missing"; the FCC declared the matter resolved with a notice of apparent liability in February 2008. WXJM web-streaming started circa 2005. WXJM's original slogan, "Music Your Mother Won't Like", changed circa 2006 to "Electrifying Wilson Hall".

In May 2011, WXJM enhanced its overnight broadcast automation capability so that when live announcers are not present, listeners hear Bluegrass music provided by Possum Music Service instead of dead air. Every spring since 1997, WXJM helps support the Mid-Atlantic College Radio Conference at various venues in and around Harrisonburg; some MACRoCks have drawn over 4,000 concertgoers. 88-7 WXJM Online "WXJM Live!" Query the FCC's FM station database for WXJM Radio-Locator information on WXJM Query Nielsen Audio's FM station database for WXJM

Kristi DuBose

Kristi Kaye DuBose is the Chief United States District Judge of the United States District Court for the Southern District of Alabama. Born in Brewton, Alabama, DuBose graduated from Huntingdon College with her Bachelor of Arts degree in 1986 and graduated from the Emory University School of Law in Atlanta with her Juris Doctor in 1989. DuBose started her legal career as a law clerk to former Judge Peter Hill Beer in the United States District Court for the Eastern District of Louisiana from 1989 to 1990. In 1990, DuBose joined the US Attorney's Office as an Assistant United States Attorney for the Southern District of Alabama from 1990 to 1993 before being appointed Assistant district attorney in the Covington County District Attorney's Office in 1994. In 1994, DuBose was appointed by Jim Folsom, Jr. the Governor of Alabama a Deputy attorney general in the Alabama Attorney General's Office from 1994 to 1996 before serving as Chief counsel for Alabama's Senior U. S. Senator Jeff Sessions from 1997 to 1999.

On the unanimous recommendation of Senators Jeff Sessions and Richard Shelby, DuBose was nominated by President George W. Bush on September 28, 2005 to a seat vacated by Charles Randolph Butler Jr. DuBose was confirmed by the Senate on December 21, 2005 on a Senate vote and received commission on December 27, 2005, she became Chief Judge in 2017. Kristi DuBose at the Biographical Directory of Federal Judges, a public domain publication of the Federal Judicial Center

Billy Carroll

William Allan Carroll is a Canadian retired professional ice hockey Centre. Carroll played in the National Hockey League for the New York Islanders, Edmonton Oilers and Detroit Red Wings, winning the Stanley Cup both with Edmonton and New York. Carroll was born in Toronto, but grew up in nearby Pickering. Carroll was drafted in the second round by the New York Islanders in the 1979 NHL Entry Draft from the London Knights of the Ontario Hockey League, he won three Stanley Cups with New York in 1981, 1982, 1983. He was claimed off waivers by the Edmonton Oilers on October 9, 1984, at the beginning of the 1984-85 NHL season and won his fourth Stanley Cup that season at the age of 26. Carroll played two more seasons in the NHL with the Detroit Red Wings before retiring from professional hockey in 1987, he has three sons, in order of birth and Matthew, who played professional lacrosse for the Toronto Rock of the NLL, while the youngest, Marcus Carroll, played professional ice hockey with the Utah Grizzlies of the ECHL.

His two nephews play hockey: Leo Jenner, played major junior hockey in the Ontario Hockey League with the Plymouth Whalers, played college hockey four seasons while attending Acadia University. 1980-81 - Stanley Cup Champion - New York Islanders 1981-82 - Stanley Cup Champion - New York Islanders 1982-83 - Stanley Cup Champion - New York Islanders 1984-85 - Stanley Cup Champion - Edmonton Oilers Biographical information and career statistics from, or, or, or The Internet Hockey Database