Information technology

The term is commonly used as a synonym for computers and computer networks, but it also encompasses other information distribution technologies such as television and telephones.

History of computer technology

Devices have been used to aid computation for thousands of years, probably initially in the form of a tally stick. The Antikythera mechanism, dating from about the beginning of the first century BC, is generally considered to be the earliest known mechanical analog computer, and the earliest known geared mechanism.

Data storage

Early electronic computers such as Colossus made use of punched tape, a long strip of paper on which data was represented by a series of holes, a technology now obsolete. Electronic data storage, which is used in modern computers, dates from World War II, when a form of delay line memory was developed to remove the clutter from radar signals, the first practical application of which was the mercury delay line.

Databases

Database management systems emerged in the 1960 to address the problem of storing and retrieving large amounts of data accurately and quickly. One of the earliest such systems was IBM's Information Management System (IMS), which is still widely deployed more than 40 years later. IMS stores data hierarchically,

Academic perspective

In an academic context, the Association for Computing Machinery defines IT as "undergraduate degree programs that prepare students to meet the computer technology needs of business, government, healthcare, schools, and other kinds of organizations ....

Affichage des articles dont le libellé est nuclear energy. Afficher tous les articles
Affichage des articles dont le libellé est nuclear energy. Afficher tous les articles

lundi 25 avril 2016

Antbo is the robot ant to learn about robotics

 
Really, teaching computer programming seems to be the number 1 priority of the new entrepreneurs of robotics. After monthly box Robobox after Codeybot and after Root, class robot, it is the turn of Antbo, the robot ant made its appearance in the field of recreational and educational robot.
In 2014, DFRobots, a young Chinese company based in Shanghai, launched the idea of ​​a companion robot to learn programming. In January 2016, the team was testing the components of the final product. And early April, the crowdfunding campaign on Indiegogo was launched.
Antbo (Ant-bot), thus born of the desire to share the art of computer programming, with the younger but not only. It is intended for all ages and is meant to be fun and easy to manipulate to make accessible robotics and programming. Installation in less than an hour, you can immediately get started in programming. For 223x125x152 mm and 209 grams, the robotic insect is particularly handy. But it is also removable and customizable. It is possible you change parts or add more features forever. Can be directed by the pre-programmed commands, remote control or even by voice and in a radius of at least 15 meters. But it is also able to explore their environment by itself thanks to its sensors and its system composed of 30 neurons.




Another important point Antbo is compatible with multiple platforms. So you can program your robot on Scratch, Arduino or Whendo. The small Chinese robot is so different from his colleagues who are often compatible with some platforms.

Antbo is already available for pre-sale on Indiegogo page of the company, for the sum of $ 69 only (against the $ 150 and more Codeybot). The creators of the robot ant have not yet met that $ 7,000 of the required 50,000, or 14%. You have a month to order your Antbo before the crowdfunding campaign closes. The first delivery scheduled in the month of November.
Antbo is already available for pre-sale on Indiegogo page of the company, for the sum of $ 69 only (against the $ 150 and more Codeybot). The creators of the robot ant have not yet met that $ 7,000 of the required 50,000, or 14%. You have a month to order your Antbo before the crowdfunding campaign closes. The first delivery scheduled in the month of November.

vendredi 2 octobre 2015

US. Ersus. Deep blue instructions nuclear reactor ingredients

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html
BWX Technology Inc. would be to manufacture ingredients with regard to nuclear reactors on U. Ersus. Deep blue submarines in addition to airplane insurers within $34. 5 mil throughout fresh legal agreements.

A lot of the operate by BWXT Nuclear Businesses Party -- it's got currently began on organization amenities throughout Virginia, Indiana in addition to Iowa -- will probably be conducted above the future 24 months.

BWX Technology said with regards to $9. several mil with the $34. 5 mil throughout awards signifies the actual work out associated with options within some sort of earlier announced long term contract.

"We are incredibly pleased to obtain most of these long term contract awards in addition to complement the backlog associated with operate, " said Peyton Ersus. Baker, web design manager in addition to ceo associated with BWXT. "We still continue to be devoted to functioning safely and securely in addition to giving the coffee quality merchandise which our client demands. "

BWXT has been production naval nuclear ingredients in addition to reactors because 1950s. Its reactors strength the actual Navy's Ohio-, Virginia-, Seawolf- in addition to Los Angeles-class submarines, in addition to the Nimitz- in addition to Ford-class airplane insurers.
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mardi 8 septembre 2015

Little, modular, successful blend plant

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

New design and style could possibly last but not least help bring this long-sought power supply nearer to reality:high technology news.
It really is a well used tall tale a large number of blend professionals have cultivated tired of experiencing: Functional nuclear blend power crops are merely 40 a long time absent -- as well as usually will be.

However at this point, last but not least, this tall tale might not become correct: Developments inside magnetic field technology possess made it possible for research workers from MIT in order to recommend the latest design and style for the practical lightweight tokamak blend reactor -- and 1 that might be realized inside as low as ten years, they will point out. The actual age involving practical blend power, that may present you with a almost immense power learning resource, might be on its way near.

Applying these kinds of new commercial accessible superconductors, rare-earth barium birdwatcher oxide (REBCO) superconducting tapes, to provide high-magnetic area coils "just ripples throughout the whole design and style, inch claims Dennis Whyte, a new professor involving Nuclear Scientific discipline as well as Design as well as movie director involving MIT's Plasma Scientific discipline as well as Fusion Centre. "It alterations the whole thing. inch

The actual more powerful over unity magnetic area assists you to generate the required over unity magnetic confinement from the superhot plasma -- that's, this functioning product of the blend response -- in a new a lot more compact device as compared to these previously envisioned. The actual lowering of measurement, in turn, creates the main program less pricey as well as swifter to construct, as well as makes for some innovative new features in the power plant design and style. The actual planned reactor, utilizing a tokamak (donut-shaped) geometry that's broadly researched, is actually referred to in a very cardstock in the journal Fusion Design as well as Layout, co-authored by Whyte, PhD choice Brandon Sorbom, as well as 11 others from MIT. The actual cardstock began as a design and style course taught by Whyte as well as grew to become a new student-led venture following course was over.

Power plant prototype

The brand new reactor is made for investigation with blend as well as as a prospective prototype power plant that may generate significant power. Principle reactor concept and its particular affiliated factors depend on well-tested as well as tested concepts created in excess of generations involving analysis from MIT as well as world wide, this workforce claims.

"The more achieable over unity magnetic area, inch Sorbom claims, "allows you to gain more achieable overall performance. inch

Fusion, this nuclear response in which power sunlight, involves fusing frames involving hydrogen atoms with each other to form helium, associated with massive produces of energy. The actual tough part may be confining this superhot plasma -- a form of electrically charged propane -- while heating system it in order to temperature warmer as opposed to cores involving stars. This can be in which the over unity magnetic fields tend to be consequently important--they efficiently pitfall the warmth as well as contaminants in the hot heart from the device.

While many characteristics of the program tend to range in proportion in order to alterations in space, the consequence involving alterations in the over unity magnetic area with blend side effects is quite a bit more extreme: The actual achievable blend power raises using the last power from the boost in the over unity magnetic area. Therefore, doubling this area would likely develop a 16-fold boost in the blend response. "Any boost in the over unity magnetic area provides you with a big gain, inch Sorbom claims.

Tenfold improve inside power

While new superconductors will not generate a good doubling from the area toughness, there're solid enough to raise blend power by in regards to issue involving 10 when compared to common superconducting technology, Sorbom claims. This particular extraordinary enhancement leads to a new cascade involving prospective enhancements inside reactor design and style.

The actual planet's most effective thought out blend reactor, a big device called ITER that's within structure inside England, is actually likely to charge close to $40 billion. Sorbom and the MIT workforce appraisal the new design and style, about 50 % of this diameter involving ITER (which was created before the new superconductors grew to become available), would likely generate on the same power at the tiny proportion from the charge as well as in a very shorter structure occasion.

However inspite of the change bigger as well as over unity magnetic area toughness, this planned reactor, called ARC, is dependant on "exactly exactly the same physics" seeing that ITER, Whyte claims. "We're not really extrapolating into a brand-new routine, inch he adds.

An additional essential advance in the new design and style can be a way for getting rid of this this blend power core through the donut-shaped reactor and never having to dismantle the complete device. So that it is particularly well-suited regarding analysis geared towards additional strengthening the device by utilizing various resources or even styles in order to fine-tune this overall performance.

In addition, just like ITER, the newest superconducting magnets would likely make it possible for this reactor to function in a very suffered way, creating a constant power productivity, unlike present day trial and error reactors that will merely function only a few a few moments at the same time without overheating involving birdwatcher coils.

Water defense

An additional essential gain is actually in which a lot of the stable resources used to brand this blend appropriate slot in such reactors tend to be swapped out by way of fruit juice product that will effortlessly become distributed as well as swapped out, eradicating the necessity regarding costly replacing methods since the resources degrade as time passes.

"It's an incredibly unpleasant surroundings regarding [solid] resources, inch Whyte claims, consequently changing these resources that has a fruit juice could be a important gain.

Today, seeing that created, this reactor must be capable of generating around three occasions as much electrical energy seeing that is necessary to preserve it jogging, however the design and style could possibly probably be improved to raise in which percentage in order to with regards to 5 or even 6-8 occasions, Sorbom claims. Up to now, no blend reactor offers developed as much power as it utilizes, consequently this type of net power production will be a important development inside blend technology, this workforce claims.

The style could possibly develop a reactor that might produce electrical energy in order to with regards to 100, 000 people, they will point out. Gadgets of the comparable complexity as well as measurement are actually constructed in with regards to 5 a long time, they will point out.

Article source:http://www.sciencedaily.com/releases/2015/08/150810123710.htm


Fixing any long-standing atomic bulk distinction problem paves approach to this neutrino bulk

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

In order to calculate this bulk associated with neutrinos, experts study radioactive decays where there're imparted. An important compound would be the decay power which in turn corresponds towards the bulk distinction relating to the mother and also child nuclei. This kind of decay power need to be recognized using top detail. Some sort of group associated with experts currently became popular to end any extreme conflict of the decay power for that artificial holmium (Ho) isotope using bulk quantity 163. This decays simply by electron seize towards the dependable dysprosium-163 (163Dy) and also looks well suited to help calculate this neutrino bulk. The actual group organized pure samples of 163Ho and also 163Dy and also specifically measured their own bulk distinction using substantial accuracy and reliability with all the Penning-trap bulk spectrometer SHIPTRAP. The research results have also been printed with Bodily Evaluate Characters.

Neutrinos are generally just about everywhere. Hundred trillion neutrinos are generally traversing each man per next, although considered one of their own simple components, my partner and i. at the., their own bulk, is still unfamiliar. While standard type of particle physics conjectures neutrinos to become massless, observations show that neutrinos should have a smallish bulk. By learning neutrino people, experts hence examine physics outside of this specific or else thus prosperous Normal model. Until now, just higher boundaries of the neutrino bulk could be decided, credit reporting that to become teeny. This kind of can make a direct bulk dimension any complicated activity, although spectroscopy associated with radioactive beta decay or even electron seize with suited nuclei has become the most guaranteeing solutions. All rays imparted from the radioactive decay is usually correctly measured, apart from this fleeting neutrino, which in turn goes out diagnosis. The actual neutrino bulk is usually hence deduced coming from researching the sum just about all detectable rays to that intended for this decay.

The artificial isotope associated with holmium, using bulk quantity 163, was in this concentrate associated with numerous huge collaborations looking on taking out this neutrino bulk coming from measurements of the power imparted from the electron seize decay associated with 163Ho towards the dependable 163Dy. At this time from the lead would be the Replicate Relationship, centered at the College associated with Heidelberg. Some sort of previous clarification about the several values noted for that 163Ho decay power is usually essential. Valuations that span this really huge cover anything from concerning 3, 400 to help 3, 900 electron Volt (eV) are printed during the last decades coming from indirect measurements performed applying unique procedures. On-line advised with files tables is usually for the entry level of the wedding ring, even so the new email address details are several 100 eV greater than this specific advised price sending your line uncertainty in their validity. On this predicament, a shot to help calculate this neutrino bulk on the 163Ho decays is usually in question.

To resolve this specific problem, any group associated with physicists, chemists, and also technicians coming from Malaysia, Russia, Switzerland, and also Portugal blended their own expertise and also exclusive instrumentation: Even though healthy dysprosium consists of enough degrees of 163Dy, samples of 163Ho, which in turn will not arise with characteristics, very first needed to be organized coming from healthy erbium rampacked with 162Er simply by extreme neutron irradiation from the high-flux analysis reactor at the Institut Laue Langevin inat Grenoble with Portugal. Taste refinement and also control has been done at the John Scherrer Start Villigen with Switzerland and also on Johannes Gutenberg College Mainz.

The actual atomic bulk distinction associated with 163Ho and also 163Dy has been specifically measured with all the SHIPTRAP Penning-trap bulk spectrometer at the GSI Helmholtz Center for Large Ion Investigation with Darmstadt. Good equivalence associated with bulk and also power as outlined by Albert Einstein's famous formula E=mc2, this bulk distinction means the action intended for this decay. "To determine this people associated with holmium and also dysprosium, all of us measured this frequencies in their ion's circular motion from the powerful permanent magnet subject of the ion lure, with all the fresh phase-imaging ion-cyclotron-resonance approach, allowing you measurements using top detail, " explained lead scientist Medical professional. Sergey Eliseev on the Maximum Planck Start for Nuclear Physics with Heidelberg. "This circular motion is usually planned on top of any position-sensitive detector in a fashion that even modest bulk distinctions is usually decided much faster and even more correctly in comparison with earlier procedures. " 163Ho and also 163Dy had been measured instead with time intervals associated with all 5 minutes for a few nights.

The averaging method triggered a last price of the decay power associated with 3, 833 eV with the skepticism associated with only a few tens associated with eV. This kind of realises this recent results, forms this long-standing conflict, and thus provides confidence towards the technique proposed through the Replicate Relationship. "For this studies anticipated from the very first stage of the Replicate try things out named ECHo-1k, funded through the The german language Investigation Foundation (DFG) using a Investigation Unit, all of us can accomplish any level of sensitivity down below 10 eV for that neutrino bulk, which can be higher than a element associated with twenty down below the latest higher reduce, " explained Replicate spokesperson Medical professional. Loredana Gastaldo coming from Heidelberg College.

Inside Replicate Relationship, a research class advancing simply by Tutor Christoph Electronic. Düllmann of the Start associated with Nuclear Chemistry together with colleagues at the TRIGA analysis reactor on Mainz College are accountable for this generation and also preparation of the desired way to obtain 163Ho. "Our prosperous generation associated with 163Ho biological samples for these kind of studies is an crucial action towards the preparation associated with biological samples suitable for any very sensitive dimension of the neutrino bulk, " stated Düllmann. "For this specific, all of us can introduce just one more higher level of cleaning of the biological samples. Within co-operation using the number of Tutor Klaus Wendt on JGU's Start associated with Physics, all of us can exploit this Mainz-based RISIKO bulk separator to take delivery of samples of top chastity, because they are necessary for that envisaged experiments. "

Article source:http://www.sciencedaily.com/releases/2015/08/150811091918.htm

dimanche 6 septembre 2015

Saudi Arabia and Korea also have the co-operation

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

Of the intelligent Saudi Arabia and South Korea yesterday signed contracts to support their co-operation in the development of nuclear reactors in chip.nuclear energy
the documents have been signed in Riyadh Korea Atomic Energy Research Institute (KAERI) - developer Smart ( System-Reaktor modular advanced built-in) - and King Abdallah of Saudi Arabia city atomique and renewable energy sources (KA-supply).  It is signed in the presence of KA-CARE president said Abdullah Yamani.
The contracts are based on a protocol of understanding (EP) both countries signed on 3. March will see the promotion together the reactor, in the world market. The EP was an intergovernmental agreement with these two countries have signed in 2011 for the design and implementation of nuclear energy for peaceful purposes.

The new Treaties " now as a package ", KA-CARE has said, and integration of cooperation and common construction in the design of the reactor core of a smart.
Smart Technologies as one of the last generation IV design nuclear reactors, KA-CARE has said.
Smart a 330 PVP under pressure in water of the reactor with integral of the steam generator and the tip of the safety devices. The unit designed for the production of electricity (100 MW) as well as the thermal applications, such as the desalination of seawater with a theoretical lifetime 60 years and three years round supply. Although the basic concept is the past, development has been hampered by the absence of a control device for a reference initial training. It has received the approval of the draft standard Korean buffer stock in MI-2012 and KAERI is planning the construction of a factory demonstration activities to be carried out from 2017.

KA-CARE underlined the importance of co-operation between the two countries in the strengthening of the capacity of human resources in the kingdom over the technology transfer from South Korea.
Their cooperation is, KA-CARE said: "The expression of the importance of the use of other sources for the production of electricity, desalination of through the use of radiation and renewable energy sources in the sole purpose of the conservation of resources for the next generations of hydrocarbons or avail for exports or for the industry. It is also attracting investments and employment opportunities" by the involvement of the location of the industries of the energy alternative in the kingdom," said.

Article source:http://www.world-nuclear-news.org/NN-Saudi-Arabia-and-Korea-further-SMART-cooperation-03091501.html

Study shows strong economy for three R


http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

Of the Triple R deposit of uranium in Canada South Lake Patterson about 100.8 million pounds u3O8 (38.770 TU) over a lifetime Minière 14 years ago, after the contents of the results of an evaluation of the economic Preliminary remark (PEA) published the nuclear fission of uranium.nuclear energy.
After the PEA, Hybrid planned open-cast mining and groundwater are an average of 7.2 million pounds u3O8 (2770 TU) per year during the 14 years of the life of the pit, with 77.5 million pounds u3O8 (29.810 TU) received in the first six years in operation. The operating costs means an estimated years 14.02 per pound u3O8 in the long run undermines useful.

The NI43-101 corresponds to PEA survey estimates that the Patterson Lake South project as a mine and autonomous operation of a factory, mining and the development of the R00E and R780. The areas of the Triple R submission. The company stresses that the PEA includes under the category of mineral resources, which are currently too speculative, from, be classified as reservations. The conclusions of the study could be improved by the inclusion of the R600w Room information High, discovered at the beginning of this year and is still in the definition.

Mining Hybrid sees the information with a high content - over 4 % u3O8 - prisoners in open-cast mining, disposal, that an expensive underground mining methods focused factories. The result of the US OJ 14.02 per pound u3O8 Operating costs has been three R potentially cost the most vulnerable producers of uranium in the world, the company said.
The nuclear fission of uranium President, COO and geologist head Ross mcelroy said, EEP showed the sustainable development and the profitability of the Triple R deposit of uranium and has been confirmed as a project " strong " with a strong economy. "In addition to Lake Patterson mill to the south), the potential catchment area at the heart of Key West Athabasca - with the possibility of recording of the ore from other high quality projects in the region, where you will be in the production," he added.

Three R discovered 2012, and is now known for a large, low depth and deposit of uranium from high quality with 30.600 TU indicated means including a Zone to 1.58 % with high content of 17 000 TU, 15.4 % and 10 000 TU resources inferees to 1.3 % (this corresponds to the national instrument 43-101) announced at the beginning of this year. The lake Patterson South capital to 100% by nuclear fission uranium. It is currently in the process of merger with Denison mines in the two companies consolidated movement of uranium in the catchment area of the strategic Athabasca of assets, including the Lake Patterson south and Denison its interests in the river Wheeler to determine mcclean Lake uranium and the work of fusion should be up at the end of October.

Article source:http://www.world-nuclear-news.org/UF-Study-shows-robust-economics-for-Triple-R-0409158.html

Vattenfall Ringhals NPP units confirmed

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

The rapid closure co-owner Sweden Ringhals nuclear power plant -Vattenfall and between - still no agreement on the early closure of units 1 and 2 majority shareholder Vattenfall said, he narrows the investment in units mean that you can not work until 2020.nuclear energy

In April, Vattenfall - has a 70.4 % of the capital of the Ringhals plant, then announced that due to the decline in profitability, and an increase in costs, it shall inform had between their decision to the closure of units 1 and 2 Ringhals in 2018-2020 rather than 2025 as originally planned. Vattenfall said at that time that the final decision to desaffecter reactors at the beginning was by the Board of Directors of the facility was still Ringhals and requires the consent between.
Vattenfall has announced today has since then been in negotiations with between during the early decommissioning of the blocks, but you have to be an agreement.
But Torbjorn wahlborg - head from generation to Vattenfall Ringhals and Chairman of the Board of Directors, said, "the market conditions and the impact of the levy from exit high we have incentives to limit the equipment in Ringhals 1 and 2. The investment decision was necessary during the negotiations are ongoing with revision between not vulnerable." He added: "We have also decided, a term investment projects had been implemented from 2017."

"Well, I would like that we would not have had, the decision limit investment ", said wahlborg. It noted that Ringhals 1 and 2 have been recently to levels and modernised to meet the new demands in the area of security, but added: "The situation on the market offers more scopie for continued investments are needed in the future".  The investment plans for the Ringhals NPP Units 3 and 4 not affected, said.
hallden Ringhals Managing Director Eva said, "From our analysis of the decision of the Council in the current conditions Ringhals 1 and 2 May 2020 services no later than." She added: "
It is clear that this is a difficult decision for me but necessary as Chief Executive Officer and owner, after the decision of the Council to limit investment. We now have a period of time from the date of the planning work for the measures and must yarn." Unity
Ringhals 1 878 MW in boiling water reactor (reb) started its activities in 1976 and 2026, while the unit had shut down 2 807 MWe reactor in water (PWR) of which the operation started in 1975 and scheduled for halt in 2025. The Ringhals 3 and 4 are more pressurised water reactor since the beginning of 1980.

Article source:http://www.world-nuclear-news.org/C-Vattenfall-confirms-early-closure-of-Ringhals-units-0409154.html

samedi 5 septembre 2015

ENERGY-hungry China provides for an accelerated adoption of new nuclear power stations in

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

China slows down the process of adoption of new nuclear power stations after the disaster in Japan; 2011. Now he has the intention to speed things.
High technal news
On Friday, China State Energy Commission met in Beijing to check and the forecasts for the energy sector, and discussion of the security considerations on the nuclear energy. According to a statement on the website of the Commission on Sunday, it now intends to the acceleration of the process of approval for new nuclear reactors in China.
2013, China has the construction of two new nuclear reactors, with a production capacity of 2.1 GWH nomenclature this year has the intention of green light 8.6 GW Nuclear Energy, according to an article published in the State newspaper China Daily Monday managed.
Currently, China has 20 nuclear power stations in operation, 1.2 % of the total energy production of the country. But China is also the Land for the construction of new nuclear reactors in the world.
2008 China production capacity of nuclear energy amounted to 3 % of the world. The international agency Atomic Energy Community provides that China will create 19 % of world production of nuclear energy until 2035.
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Article source:http://www.bloomberg.com/bw/articles/2014-04-21/energy-hungry-china-plans-to-accelerate-approvals-for-new-nuclear-reactors

The Nuclear Energy USA 2013, the US

http://high-techn-news.blogspot.com/2015/09/high-technal-newsplans-for-new-reactors.html

Electricity generation was 4294 TWh (billion kWh) large, 1717 TWh (40 %) in coal-fired power plants, 1150 TWh (27 %) pulled Gas 822 TWh (19 %) nuclear power, 291 TWh Ontario Hydro, 170 TWh wind, solar energy and 12 TWh 18 TWh Geothermal Energy (IEA).  The Nuclear Energy Institute (NIS), 2013 exit nuclear energy 789 TWh. Imports from Canada of 2012 was 0.7 TWh 46.6 TWh net net and Mexico. It is anticipated that the annual electricity for increase to 5 000 billion kWh by 2030, although it is perhaps short-term and does not have to be recovered for the expected level of approximately 2007 to 2015. The annual per capita consumption in 2012 was 11,900 kwh The total capacity of 1068 GWe, less than one-tenth of the - nuclear energy.

high technal news
The United States 99 nuclear reactors in 30 states operated 30 companies other foods. Since 2001, these works were a factor of the capacity by more than 90 %, produce up to 807 billion kWh per year and less than 20% of the total electricity generation. The capacity factor increased by 50 % at the beginning of 1970 to 70 % in 1991 and 90% in 2002 came about in this area since. 2014 Was a record high of 91.9 %.  The industry invests approximately 7.5 billion dollars per year for the maintenance and the measures taken at the level of the ESC.

There are 65 reactors in water (REP) with combined capacity of about 64 GWe and 35 reactors in boiling water (reb) with combined capacity of about 34 GWe - a total capacity of 98.662 MWe (see the nuclear energy in the United States Annex 1: US nuclear reactors in service).  Almost all production capacity comes from American nuclear reactors built between 1967 and 1990. Until 2013 there were no new measures were taken to a large extent since 1977, because for a number of years as natural gas production was more economically attractive and because the schedules for the construction in 1970 and 1980 had been extended by the parties of the opposition, often exacerbated by an increased security fears following the three mile Island accident 1979. Another PWR - Watts bar 2 - Start After Tennessee Valley Authority 2015 (Value Added Tax) Decision in 2007 at the completion of the unit.

Despite almost stopped in a new construction of over 30 years, we will have increased dependence on the nuclear power plants. 1980, Nuclear Power Plants have 251 billion kWh or 11 % of the electricity generated in the country. 2008, The production was progress on 809 billion kWh and almost 20 % of the electricity by more than 30 % of the electricity generated by nuclear power plants in the world. A large part of the increase was 47 reactors, all approved construction before 1977, the line at the end of the years 1970 and 1980, more than double the production capacity American nuclear. The nuclear industry in the United States also achieved remarkable gains in the use of power stations by supply, maintenance and the systems of the security of the existing equipment.

There are plans for a series of new nuclear reactors (see section on the preparation for new buildings below), not more than four new units in line 2020. Since about 2010 the perspective of the low prices for natural gas for several years slowed down plans for new nuclear power plants.
In the February 2013 Duke Energy's 860 MWe pwr Crystal River has been downgraded in Florida because damage to the structure of the new steam generators have been containment losses have been installed in the year 2009-2010 Progress Energy after previous owner. Its operating license should expire 40 years from 2016. Around 835 million dollars insurance was promoted. dominion Energy's 566 MWe pwr in Wisconsin kewaunee was withdrawn after 39 years in the May 2013. Then in the June 2013 reactors 30 years ago both pressurised water reactor (1070 & 1080 MWe)
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Article source:http://www.world-nuclear.org/info/Country-Profiles/Countries-T-Z/USA--Nuclear-Power/

Plans for new reactors in the world

http://high-techn-news.blogspot.com/

Nuclear power capacity in the world is steadily increasing, with more than 60 reactors under construction in 15 countries.
high technal news
The majority of the reactors on the order or are in the Asian region, there are big plans for new units in Russia.
Capacity Additional important in the creation of plant upgrading.
Programs on the extension of the life of plants, the maintenance of the capacity, the USA in particular.
Today, there are about 437 nuclear reactors 31 countries make more Taiwan, with a combined capacity of more than 380 GWe. 2014 This submitted 2411 billion kWh, more than 11 % of the world production of electricity.
More than 60 Nuclear reactors currently under construction in 13 countries more Taiwan (see table below), and in particular China, South Korea, United Arab Emirates and Russia.

Each year, the OECD International Energy Agency (IEA) representation of the current situation and even the reference and other, in particular of the scenarios for the reduction of carbon. World Energy Outlook 2014 had a special emphasis on nuclear energy and expands the scope of scenarios for 2040. In his scenario new policies to increase installed nuclear capacity is 543 GWe by 2030 and 60 % in 2040 of total 10,700 624 GWe GWe with increased mainly in China (46 %) as well as India, Korea and Russia (30 % for the whole) and the USA (16 % ), have a decline of 10% in Contre in the EU, but the share of nuclear energy in the determination of the increase in total revenues only 12 %, far below the historic summit. Low-Nuclear and so-called high-Nuclear case, 366 and 767 GWe in 2040 each nuclear energy. Low Carbon '450 scenario "is a cost-effectiveness of the transition to limit the global warming of the planet provided an effective international agreement 2015, which more than doubled to 862 GWe nuclear capacity in 2040, while the energy, emissions of CO2 in the context of PIC before 2020, then decrease. In this scenario, almost all new capacity must be built after 2030 with low carbon content.

"In spite of the challenges it faces, the nuclear energy currently has special characteristics, support the commitment of some countries will continue as an option future, " he said. "Plants Nuclear weapons can contribute to the reliability of the system of nutrition where they increase the different technologies of energy production in the system. For the countries imports, energy, there may be a reduction in their dependency on foreigners and limitation of exposure to the movements fuel costs on the international markets."

It is to be noted that in 1980 218 nuclear power reactors started, an average of all 17 days. This included 47 The United States, 42 in France and 18 in Japan. These differences are very large - performance was still on average 923.5 MWe. So it is not difficult to imagine a similar number order as in the coming years. But with China and India raise the speed in the nuclear power industry and an increase in the global demand for energy is a realistic is possible (but not at this stage) was the equivalent of a unit of 1 000 MWe worldwide every 5 days.
Increase the Capacity increased
nuclear capacity in some countries as a result of the upgrading of the existing equipment. This is a very good cost-effectiveness of the discovery of new capacities.
Many nuclear reactors of the United States, Belgium, Sweden and Germany, for example have increased their production capacity.
In Switzerland, the capacity of its five reactors was 13.4 %.
The United States, has more than 140 nuclear regulatory commission a total of more than 6500 MWe uprates since 1977, some of them "extended uprates" up to 20 %.
Spain has a program for recording 810 MWe (11 %) of their nuclear capacity by the modernisation of its nine reactors of up to 13 %.  Most of the augmentatio
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Article source:http://www.world-nuclear.org/info/Current-and-Future-Generation/Plans-For-New-Reactors-Worldwide/