GE and Hitachi want to use nuclear waste as a fuel

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first_img © 2010 PhysOrg.com Sustainable nuclear energy moves a step closer Citation: GE and Hitachi want to use nuclear waste as a fuel (2010, February 18) retrieved 18 August 2019 from https://phys.org/news/2010-02-ge-hitachi-nuclear-fuel.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Conventional nuclear power plants in the US only harness around five percent of the energy of nuclear fuels. The reprocessing technique would separate nuclear waste into different types of fuels, some of which can be used in conventional nuclear power plants, and some of which can only be used in advanced fast neutron reactors. Reprocessing of nuclear waste to extract more useable fuel has been criticized in the US because it produces pure plutonium, which could be stolen and used to make nuclear weapons. To get around this difficulty, GE Hitachi’s proposed method produces a fuel that is much harder to steal.The GE Hitachi process separates wastes from conventional nuclear power plants into three streams, by applying voltage to a molten salt. The first waste material consists of the products of fission, which cannot be further used as fuel and will need to be stored, but the storage time required is reduced from tens of thousands of years to a few hundred years (although a small fraction of the material will still need to be stored for over 10,000 years). The second material is uranium that does not have enough fissile material to be used in the light water uranium reactors in the US, which need enriched uranium, but it can be used by deuterium (heavy water) uranium reactors, which are used in Canada. The final group of waste products is a mixture of transuranic elements including plutonium and neptunium. The plutonium is not separated from the other elements, and the mixture releases 1,000 times more heat and 10,000 times more neutrons than pure plutonium. This makes it much harder to steal, and therefore less of a security risk, and it is also much easier to detect. The mixture of transuranic elements can be used in nuclear reactors that use molten sodium as the coolant rather than water, and this type is used in Japan and a few other countries. GE Hitachi has designed a reactor known as the PRISM reactor that would be able to use the mixed fuel, but sodium cooled reactors have not been approved for use in the US.A GE Hitachi spokesman said previous US administrations had little interest in re-using spent nuclear fuel, but the Obama administration is increasing support for nuclear power and looking at possibilities such as reprocessing. If adopted, the proposal would significantly decrease the amount of dangerous nuclear waste that needs to be stored. Explore further (PhysOrg.com) — One of the world’s biggest providers of nuclear reactors, GE Hitachi Nuclear Energy (a joint venture of General Electric and Hitachi), wants to reprocess nuclear waste for use as a fuel in advanced nuclear power plants, instead of burying it in waste repositories such as that proposed at Nevada’s Yucca Mountain.last_img

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I’d invest £10k in these 2 cheap FTSE 100 shares today to make a million

first_img I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Peter Stephens | Wednesday, 3rd June, 2020 | More on: BDEV POLY Our 6 ‘Best Buys Now’ Shares Image source: Getty Images. I’d invest £10k in these 2 cheap FTSE 100 shares today to make a million Enter Your Email Address “This Stock Could Be Like Buying Amazon in 1997” Peter Stephens owns shares of Barratt Developments. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. 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The gold price is close to a record high and could continue to move upwards in the short run owing to rising demand for perceived safer assets.Polymetal recently reported a 5% rise in production in the first quarter of the year. This contributed to a 9% rise in its revenue for the period, with it currently on track to meet production guidance for the full year.In 2020, the FTSE 100 company is expected to deliver a 41% rise in its net profit. Despite this, it currently trades on a relatively attractive valuation. It has a price-to-earnings growth (PEG) ratio of just 0.3. As such, now could be the right time to buy a slice of it for the long run. 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Rugby Statistics: Does World Cup form matter?

first_img How much attention should be given to form going into a World Cup? Significance may well be attached to ‘building momentum’ in competitions such as the Rugby Championship beforehand, but winning that trophy is no guarantee of success later in the calendar year. Previous Tri-Nations / Rugby Championship victors in 1999, 2003, 2007 and 2011 didn’t progress further than the semi-final stage at the World Cup that year.World Cup preparation does require a balancing act for coaches, with a need to welcome players back into the team environment after a domestic season, manage injuries and find the right mix between fitness and skills training. There is also a question of whether to give established combinations match time or rotate the squad and look at less experienced options.Below is a comparison between the previous four World Cup final winning XVs and the starting teams fielded in the preceding Tri-Nations / Rugby Championship or Six NationsAllowing for later injuries (such as Jean de Villiers), it can still be seen in 2007 that the South Africa sides picked in their final two Tri-Nations matches against Australia and New Zealand were very different to the team that later lifted the Webb Ellis Cup.  South Africa’s coach Jake White said at the time that it was “ludicrous to risk South Africa’s top players on an overseas tour in World Cup year” and the need to keep key players fresh was given priority over results.Winning run: England had won 35 of their 40 Tests leading up to the 2003 World Cup triumphIn contrast to New Zealand in 2011 (second in Rugby Championship), South Africa 2007 (third) and Australia in 1999 (second), England went into the 2003 World Cup campaign having already won a competition that year.  They won 35 of 40 Tests from the beginning of 2000 until the start of the 2003 tournament, with Six Nations titles in three of those four seasons. There was also English success in the Heineken Cup in this period with Northampton winning the trophy in 2000 and then Leicester in 2001 and 2002.England coach Sir Clive Woodward had a different approach to Jake White and opted to take a full strength team on a successful trip to New Zealand and Australia before the World Cup. A desire to generate “huge momentum” was provided as the reason in his book, Winning! Those victories in Wellington and Melbourne in June 2003 can be seen as important steps towards the later triumph, but it also true that losing both tour games in the Tri-Nations didn’t hurt New Zealand in 2011, South Africa in 2007 nor Australia in 1999. LATEST RUGBY WORLD MAGAZINE SUBSCRIPTION DEALS Timed run: The All Blacks won the 2011 World Cup despite not winning the Tri-Nations that preceded it The above shows Test win rate per year, for the Rugby Championship and Six Nations teams from 1996-2015 and their World Cup finishing positions in that period.Taking a range of results from the start of the preceding season up until the final warm up match, Australia won 16 of 20 Tests before the 1999 tournament, England 17 of 19 before 2003 and New Zealand 16 of 19 before 2011.South Africa had a record of just 11 wins from 21 Tests from June 2006 until August 2007 and three victories in ten games against their main Southern Hemisphere rivals. However there was success at Super Rugby level. South African teams had a 55% win rate against New Zealand and Australian opponents in 2007, which has proved to be their highest rate in 20 seasons of the competition. The Bulls won the Super Rugby final that year and repeated that feat in 2009 and 2010. In total nine of the starters from the 2007 final between the Bulls and Sharks made began the World Cup Final, five months later.Come good: South Africa had been in fair-to-middling form in Tests, but their Super Rugby teams had been dominantMuch is made of French inconsistency but they have made at least the semi-final stage in each of the previous four World Cups. It should be noted that the Les Bleus did perform well the year before each of those tournaments – with Six Nations triumphs in 1998, 2002, 2006 and 2010 and achieving Grand Slams three times.However it is now France’s Pool D rivals Ireland with the superior Test form. Joe Schmidt’s side have won 13 of their previous 15 matches and the Six Nations in consecutive years.  There is an expectation that Ireland will reach at least the semi-final this year and with a potential route there of matches against Romania, Canada, Italy, France and likely Argentina, that optimism is understandable. New Zealand have been beaten just twice in 50 matches and could well take 11 starters from the 2011 final to the upcoming World Cup. They can call upon a front row combination of Tony Woodcock, Keven Mealamu and Owen Franks that have started 21 Tests together, a backrow trio of Jerome Kaino, Richie McCaw and Kieran Read that have 27 starts and a midfield pairing of Conrad Smith and Ma’a Nonu with 55 starts.Even with that experience and impressive winning record they will be aware that injuries, conditions, pressure and refereeing decisions all have the potential to act as levellers in elimination games. After all, the All Blacks went into the 2007 tournament having won 18 of the previous 20 matches, but were knocked out at the quarter-final stage. Meanwhile, an England team that had won only seven of 21 Tests pre-tournament and well beaten 36-0 by South Africa in the group stage, reached the final.last_img

Best tries of the Top 14 – Round 6

first_imgFriday Sep 24, 2010 Best tries of the Top 14 – Round 6 With so much rugby taking place right now, its difficult to not only keep track of the all the goings on, but make sure the best clips are posted in a timely fashion. Your patience is appreciated as RD attempts to maintain a high standard and continue to please. For now, well catch up on the best tries from Round 6 of the Top 14.As its from two weekends ago, well not focus too much on the match reports and scores but rather just mention the stand out tries that make the Top 14 such a great tournament to watch.For Stade Francais Sergio Parisse crossed for a nice try against Brive after a great flick pass by Lionel Beauxis, while Ollie Phillips also flew in for a nice one down the wing. For Perpignan, Farid Sid dived over after some great work by dangerous fullback Jerome Porical, and Maxime Medard crossed for a typically classy Toulouse try.Montpellier, who we saw earlier this week with a few classic triesin their Round 7 meeting with Agen, showed how good they are with ball in hand as they once again displayed some great handling against Castres as they sent Geoffrey Doumerou away for a try.Toulon thumped Agen, with Jonny Wilkinson returning to the type of form that has had his club president comparing him to his 2003 version. He scored a great try as Toulon stretched down field and he stayed in support of talented number eight, Juan Fernandez Lobbe.The number one try comes from the same game as the Francois Steyn/Sireli Bobo quick restarttry you will have seen featured here last week. It was an awesome try in that Seru Rabeni broke the line and passed to fellow Fijian, veteran Norman Ligairi, who then had to sprint to the corner to beat another Fijian flyer, the aforementioned Bobo. Classic stuff. :: Related Posts :: Best Tries of the Top 14 – Round 6 Time: 04:54 Note: Apologies for the size/quality on this one. Clip courtesy of lerugbynistere.fr ADVERTISEMENT Posted By: rugbydump Share Send Thanks Sorry there has been an error Related Articles 81 WEEKS AGO scottish prop saves fire victim 84 WEEKS AGO New Rugby X tournament insane 112 WEEKS AGO Vunipola stands by his comments supporting… From the WebThis Video Will Soon Be Banned. Watch Before It’s DeletedSecrets RevealedDoctors Stunned: She Removes Her Wrinkles With This Inexpensive TipSmart Life ReportsIf You Have Ringing Ears Do This Immediately (Ends Tinnitus)Healthier LivingShe Was the Most Beautiful Girl in the World. 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Best tries of the Top 14 – Round 6 | RugbyDump – Rugby News & Videos RugbyDump Home RugbyDump Academy Store About Contact Legal Privacy Policy Cookie Policy Categories Latest Great Tries Big Hits & Dirty Play See It To Believe It Funnies Training Videos Player Features RugbyDump Home RugbyDump Academy Store About Contact Sitemap Categories Latest Great Tries Big Hits & Dirty Play See It To Believe It Funnies Training Videos Player Features Legal Privacy Policy Cookie Policy Sign In Username or Email Password Stay logged in Forgot password Thank you for registering Click here to login Register Register now for RugbyDump commenting & enewsletter. * Required fields. Username * Password * Email * Password Repeat * Please send me news, information and special offers from RugbyDump By clicking register you agree to our Privacy Policylast_img

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