ЧТО ОЗНАЧАЕТ СЛОВО URANIUM
Уран
Уран - серебристо-белый металлический химический элемент в серии актинидов периодической таблицы с символом U и атомным номером 92. Уран-атом имеет 92 протона и 92 электрона, из которых 6 - валентные электроны. Уран слабо радиоактивен, потому что все его изотопы неустойчивы. Наиболее распространенными изотопами урана являются уран-238 и уран-235. Уран имеет второй по величине атомный вес изначальных элементов, более легкий, чем плутоний. Его плотность примерно на 70% выше, чем у свинца, но не такая плотная, как золото или вольфрам. Это происходит естественным образом в низких концентрациях в несколько частей на миллион в почве, скалах и воде и коммерчески извлекается из ураносодержащих минералов, таких как уранинит. В природе уран встречается как уран-238, уран-235 и очень небольшое количество урана-234. Уран медленно распадается, испуская альфа-частицу. Период полураспада урана-238 составляет около 4,47 млрд. Лет, а урана-235 - 704 млн. Лет, что делает их полезными для знакомства с возрастом Земли. Многие современные применения урана используют его уникальные ядерные свойства.
Значение слова uranium в словаре английский языка
Определение урана в словаре - это радиоактивный серебристо-белый металлический элемент серии актинидов. Это происходит в нескольких минералах, включая смоляную обманку, карнит и аутунит, и используется главным образом в качестве источника ядерной энергии путем деления радиоизотопного урана-235. Символ: U; атомный №: 92; атомный вес: 238,0289; период полувыведения наиболее стабильного изотопа, 238U: 451 × 109 лет; валентность: 2-6; относительная плотность: 18,95; плавление: 1135 ° С; кипящий раствор: 4134 ° С.
ЦИТАТЫ СО СЛОВОМ «URANIUM»
Известные цитаты и высказывания со словом
uranium.
Satellite images suggest North Korea is building a light-water reactor and working on uranium enrichment. This is troubling.
They have been saying for a long time that Iraq made an effort to import active uranium, and my colleague demonstrated the other day that they came to the conclusion that it was a fake document that everybody is relying upon.
There are better alternatives... Australia should be exporting its solar technology, not its uranium.
Nuclear power is here to stay, and we need to support a strong domestic uranium industry.
At the height of Iraq's clandestine nuclear weapons program, which nearly succeeded in building a bomb in 1991, Tuwaitha incorporated research reactors, uranium mining and enrichment facilities, chemical engineering plants and an explosives fabrication center to build the device that detonates a nuclear core.
In addition, it is very likely that United States action in Iraq caused Iran to open its nuclear facilities for international inspection and suspend its uranium enrichment activities.
With a fourth generation of nuclear power, you can have a technology that will burn more than 99 percent of the energy in the fuel. It would mean that you don't need to mine uranium for the next thousand years.
I think we ultimately ought to look to put all uranium enrichment and fuel reprocessing, if any is done, under multinational control. Those are the two technologies by which nuclear energy can be translated into nuclear weapons programmes.
Connection between life and radioactive nuclei is straightforward. No life without tectonic activity, without volcanic activity. And we know very well that geothermal energy is mostly produced by decay of uranium, thorium, and potassium.
Native people - about two-thirds of the uranium in the United States is on indigenous lands. On a worldwide scale, about 70 percent of the uranium is either in Aboriginal lands in Australia or up in the Subarctic of Canada, where native people are still fighting uranium mining.
КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «URANIUM»
Поиск случаев использования слова
uranium в следующих библиографических источниках. Книги, относящиеся к слову
uranium, и краткие выдержки из этих книг для получения представления о контексте использования этого слова в литературе на английский языке.
1
Uranium: War, Energy, and the Rock That Shaped the World
This is its fundamental paradox, and its story is a fascinating window into the valor, greed, genius, and folly of humanity.
2
The Navajo People and
Uranium Mining
Based on statements given to the Navajo Uranium Miner Oral History and Photography Project, this revealing book assesses the effects of uranium mining on the reservation beginning in the 1940s.
Doug Brugge, Timothy Benally, Esther Yazzie-Lewis,
2007
3
Australia's
Uranium Trade: The Domestic and Foreign Policy ...
This edited volume explores Australia's uranium trade by examining it across a range of domestic and international dimensions.
Michael Clarke, Stephan Frühling, Andrew O'Neil,
2011
4
The New
Uranium Mining Boom: Challenge and lessons learned
The book presents the results from the Uranium Mining and Hydrogeology Conference (UMH VI) held in September 2011, in Freiberg, Germany.
Broder Merkel, Mandy Schipek,
2011
5
Uranium Deposits Of The World
This volume gathers and presents a massive collection of data on the location, quality and accessibility of uranium resources in nearly every region of the globe.
6
Hitler’s
Uranium Club: The Secret Recordings at Farm Hall
Farm Hall was a comfortable, even civilized, prison, but it was bugged. This book contains the complete collection of transcripts that were made from the secret 1945 recordings, expertly annotated by Jeremy Bernstein.
7
Depleted
Uranium: Properties, Uses, and Health Consequences
Focusing on current, peer-reviewed data, this volume is the only available compilation book on the current understanding of the potential health hazards of depleted uranium exposure.
C. Miller Alexandra,
2006
8
Uranium, Mining and Hydrogeology
Subject of the book is Uranium and its migration in aquatic environments.
Broder Merkel, Andrea Hasche-Berger,
2008
9
Uranium Seekers: A Photo-Essay Tribute to Miners (Working)
The, Uranium Seekers, saga began in 1976 when world-famous Hollywood, California photographer, Martin, was contracted to come to Utah and begin documenting, paying photographic tribute to, uranium miners, native Americans, and the Vanadium ...
10
Uranium Resource Processing: Secondary Resources
This book concentrates on the processing of secondary sources for recovering uranium, a field which has gained in importance in recent years as it is environment-friendly and economically in tune with the philosophy of sustainable ...
Chiranjib Gupta, Harvinderpal Singh,
2003
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «URANIUM»
Здесь показано, как национальная и международная пресса использует термин
uranium в контексте приведенных ниже новостных статей.
The US may let Iran run hundreds of uranium centrifuges in a …
Instead of uranium, which can be enriched to be the fissile core of a nuclear weapon, any centrifuges permitted at Fordo would be fed elements such as zinc, ... «Business Insider, Мар 15»
Exiled Iranian opposition: Tehran hiding secret uranium enrichment …
"Since 2008, the Iranian regime has secretly engaged in research and uranium enrichment with advanced... centrifuge machines at this site," Jafarzadeh said. «Jerusalem Post Israel News, Фев 15»
Iran denies 'tentative uranium agreement' with US
Washington and Tehran came a step closer to agreeing on shipping part of Iran's enriched uranium stockpile to Russia, AP reported on Friday, citing diplomatic ... «RT, Янв 15»
Iran's Uranium Stockpile Grows Before Deadline for Nuclear Deal
VIENNA (Reuters) – Iran's stockpile of low-enriched uranium gas has grown by 8 percent to nearly 8.4 tonnes in about two months, U.N. atomic inspectors say, ... «Washington Free Beacon, Ноя 14»
Iran open to new US proposals on Tehran's uranium programme
With Iran refusing US demands that it gut its uranium enrichment programme, the two sides are discussing a new proposal that would leave much of Tehran's ... «The Guardian, Сен 14»
India uranium deal a boost for WA
WA's fledgling uranium sector will be a step closer to becoming an export industry when Tony Abbott signs an historic deal clearing the way for Australian ... «The West Australian, Сен 14»
Iran completes process of eliminating enriched uranium
Iran has turned all of its enriched uranium closest to the level needed to make nuclear arms into more harmless forms, the UN nuclear agency says. «BBC News, Июл 14»
A Solution for the Iranian Uranium-Enrichment Puzzle
Iran's enrichment program has been the focus of international concern for more than a decade because gas centrifuge machines can be used to enrich uranium ... «The National Interest Online, Июл 14»
Nuclear Talks Will Confront Iran's Future Capability to Enrich Uranium
WASHINGTON — As Iran and six world powers meet this week in Vienna to begin drafting language to resolve their nuclear standoff, negotiators say they are ... «New York Times, Май 14»
Navajo Nation secures $1B for uranium cleanup
Navajo miners work at the Kerr McGee Corp. uranium mine at Cove, Ariz., on the Navajo reservation in 1953. Kerr-McGee abandoned uranium mine sites, ... «Santa Fe New Mexican.com, Апр 14»