reactor

Potassium iodide, also known as the radiation pill, prevents the body's absorption of the radioactive iodine present in reactor emissions.

A portion of the thickened biomass is usually recycled to the reactor to improve performance through higher cell concentrations.

The more critical situation appeared to be with Reactor Nos. 1, 2 and 3, which had been online at the time of the quake.

A year after the accident, Denton went inside the reactor containment vessel after it had been vented.

wherein the intermediate reactor feedstock comprises at least one of a fatty acid and a fatty acid ester.

He said it was clear that water that could have been inside the No 3 reactor had leaked, but said the reactor itself had not been breached.

In this crisis, a reactor at the plant automatically shut down in response to a malfunction that caused it to run too hot.

There seems to be a problem with the main reactor. - Impossible!

Some of the salt might be settling to the bottom of the reactor vessel rather than sticking to the fuel rods.

Tepco spokesman said the sample had been taken just beyond the cement containment foundation of reactor No. 1 at a depth of about 15 meters.

Moreover, some parties have not got what they had hoped for out of the project, notably Japan, which had wanted to host the reactor.

It is worth mentioning at this point that the nuclear fuel in a reactor can never cause a nuclear explosion like a nuclear bomb.

Meanwhile, Japan's Nuclear and Industrial Safety Agency said the spent fuel at the No. 4 reactor appeared to be immersed in water.

The unfolding tragedy's impact on a nascent revival of reactor construction in the United States is too early to call, say experts.

Before bringing the technology to market, Haile said, the reactor design needs to be much tighter to get better efficiency.

"Israel felt that this reactor posed such an existential threat that a different approach was required, " he said.

To make sure the power plant does not overheat, control rods made of a material that absorbs neutrons are lowered into the reactor.

He said pumping seawater round the reactor as a coolant would take away the heat and stop any further core meltdown.

Reported that after testing the air in Tokyo, did not detect the radioactive nuclear reactor usually have cesium and radioactive iodine.

Bridging : When two or more catalyst pellets wedge together to form a bridge in the reactor tube with a void volume underneath.

The reactor can be designed in such a way that it has a high leakage core and sometimes that's useful for reactor design and safety.

He said detection of the radioactive element caesium outside the No. 1 reactor today was "a bad sign" for a core meltdown.

At the time Mr Edano said the blast had "destroyed the roof of the outer building but the reactor containment vessel did not explode" .

For there is the little matter of building a reactor that can run for long enough to turn out a meaningful amount of electricity.

The land-based nuclear reactor became fully operational in 1970 and was ready to be fitted on the submarine.

He said the nuclear reactor was intact and radiation levels were normal.

New "passive safety" features can shut a reactor down in an emergency without the need for human intervention.

And yet Taylor's story began much like David Hahn's, with a brilliant, high-flying child hatching a crazy plan to build a nuclear reactor.

The military appears to have given up trying to repeat Thursday's water drops, by helicopter, on the damaged reactor buildings.

He said lighting at central control rooms of No. 3 reactor had been restored, while lighting at No. 4 reactor would be back again soon.

The nuclear safety agency said the spent fuel at the No. 4 reactor appeared to be immersed in water.

The invention discloses a high heat conductive insulating impregnated resin used for an air reactor and a preparation method thereof.

North Korea says it may be ready to move in a standoff over frozen assets it insists be unblocked before shutting down its nuclear reactor.

North Korea had already secretly built a nuclear reactor in Syria before Israel destroyed it in an air raid.

He said: "The state of the reactor core can not confirm, however, can not conclude that there is no dissolution of nuclear fuel rods. "

This week Russia also said it would be unable to complete work on an Iranian nuclear reactor by year-end as scheduled.

Slowly he began to test-assemble the reactor, troubleshooting pesky vacuum leaks, electrical problems and an intermittent plasma field.

The DPRK said about a week ago it had stopped disabling its nuclear facilities and considered restoring the Yongbyon nuclear reactor .

He thought, ready to restart the reactor is very important.

He said the plant operator confirmed there was no damage to the steel container housing the reactor.

Work on a scaled up version of a Bussard reactor, funded by the US Navy, has already been taking place in California.

Through the detail study of the flow pattern in the transition of the reactor, the concept of suspended bed reactor had been developed.

"No Chernobyl is possible at a light water reactor. Loss of coolant means a temperature rise, but it also will stop the reaction, " he said.

The second one is if you had a really severe enormous over pressure that it blew the top of the reactor off the main vessel.

A top government official, Yukio Edano, said a steel container encasing the nuclear reactor had not been ruptured by the blast.

The first piece, built at Caltech, is a reactor "just a bit smaller than a gallon-jug, " Haile said.

Yet Australia has problems of its own with its single, albeit newish reactor, and has recently been importing isotopes from South Africa.

The possibility that fuel in the reactor pools could ignite led to the recommendation on evacuation, he said.

All of these are quite specifically identified as to what you must be able to do in the design of this reactor.

the heat exchanger is connected with the discharge hole of at least a hydrogenation reactor.

"Passive safety technology" ensures that a reactor will automatically shut down in the event of a disaster without human intervention.

The Navy says the submarine's nuclear reactor was not damaged , there was no leak of radioactivity and the vessel's hull is intact .

In the process, plutonium is split from the spent uranium and fed into a reactor to produce more power--or used to make nuclear weapons.

She thinks transport fuels would be the first application of the reactor, if it goes on to commercial use.

He said a heavy-water reactor is inappropriate for producing medical isotopes as Iran claims is its intention.

in return it would receive within a year more highly enriched (to 20%) fuel rods for its ageing medical-research reactor.

A few hours later, the company said that it observed smoke coming from the building housing the No. 1 reactor at the plant.

In yet another setback earlier on Wednesday a fire broke out for a second time at the building housing the No 4 reactor.

The enriched uranium was used in a Soviet-designed research reactor near Tashkent, described as the largest of its kind in Central Asia.

Use of its weatherability, resistance to radiation and other characteristics of a small nuclear reactor used for oil and cables.

Reactor operators decided to take drastic action to prevent further melting of the fuel and a possible breach of the containment vessel.

As a result of propionic acid accumulation, rancidity is one of important factors that restrict stable operation of anaerobic reactor.

Now authorities are predicting that it will be at least a month before the reactor will be back in service.

Temperature, pressure, monomer conversion and copolymer composition could be considered states of a polymerization reactor.

But much of the water appeared to miss the reactor, dissipating in a mist of white. "Uhh , " a chorus of disappointed voices cried out.

otherwise, only a partial meltdown is possible and any melting will form in pellets under the water remaining in the reactor.

"Thegovernment is telling people not to use it too much as they need the power tohelp bring the nuclear reactor under control, " he said.

The company said it is still checking the safety of the reactor, but said there has been no reported leakage of radioactive substances.

Fusion reactor structural material is one of the keys whether commercial application of fusion energy can be achieved.

An approach to the inverse kinematic solution for the redundant manipulator used for nuclear reactor repairing was proposed.

The situation at the Daiichi nuclear reactor at Fukushima continued to baffle nuclear experts and governments yesterday.

And there was no obivious distinctiveness with pressure lose for the cylinder reactor and the hexagonal reactor.

An atomic reactor , the kind of engine that would produce energy by atom splitting, throw off radiation, extremely dangerous radiation.

on Saturday evening when the government assured the public that the explosion had not been caused by the meltdown of the reactor.

The Chilean government said the deal focused on training nuclear engineers rather than building a reactor.

The reactor core is the main part of the reactor, housing the active fuel rods that provide the heat that generates power at the plant.

Emergency workers have been unable to enter any reactor building since the disaster.

The government spokesman, Yukio Edano, said reactor No. 1 was the focus of attention but that there was no sign of new damage.

These fuel rods are then put together to form larger packages, and a number of these packages are then put into the reactor.

This paper expound the neutron dynamic math model of a nuclear reactor and applied this model to set up the transfer function.

Circulating and flowing-down tube of anolyte and that of catholyte are installed outside the reactor components.

Study of a slightly enriched R reactor fuel by means of a pulsed neutron source.

Russia has agreed to build it a small nuclear-research reactor.

The company's engineers continue to pump seawater into the reactor pressure vessel, in an effort to cool it.

He grabbed a surprised Palpatine from behind, hoisted him above his head, and tossed his evil master down a bottomless reactor shaft.

The discovery was made even as it emerged that the No 3 reactor was not likely to have been breached, as feared earlier.

But despite all that, the reactor vessels have held, and radioactive release is limited.

'The first thing you do is assure safe shut down of reactors and continued cooling of the reactor cores and the spent-fuel pool, ' he said.

A benchmark test with experimental data was conducted to verify and improve the codes used for the seismic analysis of reactor cores.

Later the same month, the Netherlands gave the go-ahead for a replacement for the aged Petten reactor to be built at the same site.

The acoustic lab leases just a small fraction of the available space in the reactor building.

Once he heard about the accident, he knew it was his duty to help, since so few people understood how to run reactor systems.

But the researchers at Pennsylvania State University were able to get around these problems by chemically modifying elements of the reactor.

The reaction took place in the fixed bed reactor. By using steady state model, each step kinetic parameter in the reaction net was acquired.

Not having sanction and not having built the required safety requirements did not stop them form initiating the Chernobyl reactor.

Reprocessing of spent commercial-reactor nuclear fuel is not permitted in the United States due to nonproliferation considerations.

At unit two, the decision was apparently made to put seawater only into the reactor vessel, but the intervention went awry.

It would come to be known as the worst reactor accident until Three Mile Island.

Also known as the torus, this large doughnut-shaped structure sits in the centre of the reactor building at a lower level than the reactor.

Hydrothermal synthesis reactor is in a certain temperature and pressure conditions, certain synthetic chemical reactor provided.

The regenerated catalyst then passes to the bottom of the reactor-riser where the cycle starts again.

How can we take that crush strength and back-calculate the maximum height to which the reactor can be loaded?

Nuclear experts say that radiation from the core of a reactor can split water molecules in two, releasing hydrogen.

The solar reactor consists of a cavity with a small windowed aperture into which concentrated solar radiation enters.

To dismantle the heavy concrete of biological shield lay of a reactor is one of the difficulties in the process of D&D project.

At present, the temperature of the second nuclear reactor nuclear power plants also continued to rise.

The gas in the UASB reactor was not distributed uniformly, it had large spatial variation in space.

This flexibility can only be assured with the deployment of the fast neutron spectrum reactor technology, and fuel reprocessing.

Determination of the yield strength of nuclear reactor pressure vessel steels by means of amplitude-dependent internal friction.

The map above, released by the Japan Atomic Industrial Forum, shows the status of every reactor as of March 17.

At present, Chile has two small experimental nuclear reactor, mainly used for scientific research and data collection.

Microstructural evolution in medium copper low alloy steels irradiated in a pressurized water reactor and a material test reactor.

Earlier this month, North Korean state media said "the day is near at hand" when the reactor will come into operation.

Alabama, the storm also led to a nuclear power supply be affected, some of the reactor automatically shut down.

A new method to determine the neutron sensitivity of a micro fission chamber for a boiling water reactor.

Iran would be provided technological and financial assistance and support the construction of an advanced light-water nuclear reactor.

have been unable to enter any reactor building since the disaster.

Tokyo Electric Power, and by producing provinces will be the basis of these programs to determine the reactor's planned retirement.

In a nuclear reactor, the number of chain reactions is controlled to determine the amount of nuclear energy that will be produced.

Meneley, however, contests claims that the PCR is simple to calculate, especially in a small reactor like the Maple design.

By adding an outer - circulation pipe and a gas - liquid separator, the reactor for low boiling point catalyst can be ameliorated.

The chain length of hydrocarbons depends on such factors as temperature, type of catalyst and type of reactor employed.

In modern nuclear reactor designs, pumps aren't necessary to move water through the core in an emergency shut down.

A reactor has no proactive strategy. They react to events as they occur.

A central zone, provides rapid flocculation, with mixing by an axial-flow impeller, which recirculates the flow within the reactor.

If a country is considering building a nuclear reactor, it would take a step back and say hold on a minute.

The design of the reactor was such that it lacked a protective containment; once it exploded, radioactive debris was ejected into the air.

That could only be released into the environment if that material gets out of the main pressure vessel of the reactor.

aerobic pool of the process flow model should be a certain number of push-reactor (PFR) and full-Francis reactor (CSTR) combination.

Study on storage and reprocessing concept of the high temperature engineering test reactor (HTTR) fuel.

Now the next slide gives you a simple version of a boiling water reactor, a schematic.

Earlier, officials said they worried that the reactor itself had been damaged, but later played down the possibility.

Workers found a broken bolt and shut down the reactor.

There are fears that reactor three may have released radioactive steam due to a reported damage to its containment vessel.

Sizewell B, Britain's newest reactor, was intended by Margaret Thatcher's government to be the first of a fleet of ten such plants.

Thousands of residents within a 20-kilometer radius of the reactor have been evacuated as a precaution.

The control rods soak up the neutrons that mediate the chain reaction which produces most of a reactor's energy, shutting it down.

The invention relates to a jar external circulatory packed bed type cell reactor and a method for cultivating an animal cell.

An innovative concept of the sodium-cooled reactor to pursue high economic competitiveness.

The sparkling centrifuges were close to a disabled plutonium reactor at Yongbyon, a site intensely monitored by US satellites.

The self-made global reactor was used to investigate the anaerobic biodegradability of the components of molasses alcohol wastewater.

It has also continued to develop a novel "pebble bed" nuclear reactor that is smaller and probably safer than conventional reactors.

The US state department said yesterday Pyongyang would face diplomatic and political costs if it restarted the nuclear reactor.

One of the biggest challenges for the NNSA is hiring and training enough skilled inspectors to keep pace with reactor construction, he says.

Workers are still trying to entomb the reactor in concrete.

Within a couple of years, the British firm GEC built Japans first nuclear reactor at Tokaimura, Ibaragi Prefecture.

The main pump is the core of first loop of a nuclear power plant, it plays a vital role on the safety of the nuclear reactor operation.

"We think the water was duly delivered to the inside of unit 3, " which should lower the temperature of fuel in the reactor, he said.

And, most importantly perhaps, it must trust reactor designers to create new reactors that do not share the vulnerabilities of older ones.

And I've dug up a list of pending applications, complete with the type of reactor to be used. . .

in the thermal reactor it promotes corrosion , and in the catalytic reactor it tends to poison the catalyst.

The powerful system has the capacity to propel thousands of gallons of water a minute throughout a reactor pressure vessel and storage pool.

Monday's blast did not damage the reactor or result in significant radiation leakage.

While the reactor could produce black holes, according to physicists, they would be tiny and would not be capable of growing.

He said Iran's Tehran research reactor was discussed, adding, "We'll continue to explore this as we go forward. "

On the table, a plan is to send much of Iran's enriched uranium to France and Russia to be refined for use in a research reactor in Tehran.

"The reactor vessels have held and radioactive release is limited, " he said.

In addition, the time when the reactor starts up in iodine pit is a very important factor for nuclear reactors safety.

Special containers with targets (uranium rods in aluminum coats) are placed on the bottom of the reactor filled with water for 8 meters.

Previous releases of radioactive iodine and caesium had shown that material from the core of at least one reactor has been released.

The reactor was still burning and was not being cooled, and the population should have been evacuated immediately.

The attack submarine surfaced quickly and its nuclear reactor was not affected, according to the British Ministry of Defence.

The system is configurable to provide a number of alternative flow paths, each with different furnace and reactor configurations.

The shell parts of reactor pressure vessels have been often fabricated with formed plates welded together, especially in USA and Japan.

At T. M. I. , the reactor containment worked and did not release any radioactive gases.

The United States says the reactor dangerous nuclear materials possibly used to make bombs.

Removing the fuel from the TMI-2 reactor vessel was the heart of the cleanup.

Once the No. 3 reactor vulnerability does exist, it means that leakage has been going on for a few days events.

Put several fuel assemblies into the core of a nuclear reactor, and the amount of energy released gets even higher.

The finished uranium would be shipped back to Iran, where it would be used to fuel a research reactor.

The United States said Friday North Korea is continuing to take steps to reverse the shutdown of its Yongbyon reactor complex.

Mr. Tada emerged into a crowd of several hundred other workers, all heading toward a handful of exits from the reactor building.

The system was built and tested on a laboratory-scale batch reactor; this device has a certain Applicability and development potential.

One big source of low-level waste is the water used to cool the core in the most common form of reactor, the pressurized-water reactor.

Japan's last nuclear reactor went offline for routine maintenance two weeks ago and none have been switched back on so far.

The goal of Rover was to develop a reactor that could be used for propulsion.

Because the destroyed reactor is still highly radioactive, to protect workers, the arch will not be constructed over the sarcophagus.

the light used for photosynthesis is produced by the reactor itself.

In the event of a serious nuclear accident, radiological materials may be released to the containment from the reactor system.

The radiation source delivering the electromagnetic radiation can be enclosed within the reactor or can be external to the reactor.

A demonstration plant of a completely different type, a "pebble bed" reactor, is scheduled to be built in SouthAfrica starting in 2009.

The membrane biological reactor was introduced including its basic principle and its application in waste water and sewage treatment.

The flue gas denitration device comprises an economizer and a reactor, wherein the reactor is a selective catalytic reduction reactor.

The invention discloses a sewage denitrification control method, a reaction device, a biological membrane assembly and a reactor.

"Each of them is representative somewhat of the state-of-the-art version of a particular reactor type, " Knief said.

Lowering of the control rods into the reactor core slows down the rate of the reaction.

The technology under construction here, known as a pebble-bed reactor, is not new.

Then it would be further processed and sent back as fuel for a Tehran research reactor.

Although the reactor had been shut down, boric acid is added as a conservative measure to ensure the reactor stays shut down.

An explosion had blown the roof off one of the reactor buildings in Fukushima, heightening fears of large-scale radiation exposure.

When a reactor core is shut down, its energy output drops not to zero, but about 6% of its normal output, Forsberg told me.

The next reactor restart at Kashiwazaki-Kariwa, in fact, had been scheduled for later this month.

eg: Meltdown is a term that describes the melting of a nuclear reactor core as a result of a nuclear accident.

While in the Navy, Carter was part of a team that helped dismantle the damaged nuclear reactor at the Chalk River plant in Ontario, Canada.

Flooding the reactors with sea water effectively ends their life. The reactor cores will have to be dismantled.

Such a healing medication has the potential to lessen panic and fear generated by catastrophic reactor accidents.

Uncertainty analysis on fission molybdenum production with a nuclear fuel target in a research reactor.

But the cooling systems, some of which use sea water to keep the reactor temperatures down, appear to have been affected by the tsunami.

Bulgaria Wednesday threatened to restart a nuclear reactor whose closure was part of a deal to allow the Balkan state into the EU.

After all, the core reactor survived one of the biggest ever earthquakes and subsequent tsunami.

In fact the reactor has not been operating at full capacity and its refuelling may not be that urgent.

As a nuclear renaissance unfolds around the globe, orders for Westinghouse's AP1000 reactor have propelled Toshiba much higher.

The fuel is produced only within the reactor, and therefore cannot be retrieved easily for building bombs.

This was due to the high levels of radioactive iodine released from the Chernobyl reactor in the early days after the accident.

It is cesium-137 that still contaminates much of the land in Ukraine around the Chernobyl reactor.

The planned reactor would have a containment vessel, but it would be located in the same seismic area as the current Metsamor plant.

The International Atomic Energy Agency said Friday that Iran agreed to allow U. N. inspectors to visit the reactor by the end of this month.

This paper introduces the research evolvement of the controllable reactor in and abroad and the detailed classifications.

Vietnam has not laid out a clear explanation of why it awarded the first reactor contract to Rosatom.

Reactor No. 3 automatically shut down at the time of the earthquake but was damaged in an explosion.

The invention relates to an immobilized enzyme membrane reactor and the preparation thereof and a method for producing bio-diesel.

One of these, a French-made reactor, was destroyed in a 1981 Israeli bombing raid .

Controlling sludge bulking is one of the key factors in operating activated sludge reactor.

The Japanese government says there is no evidence of a breach of the stainless steel chamber of the reactor core.

But it is not a situation where [the] core reactor, the substantial part of [the] reactor, is melting down.

That reactor, No. 3, appeared to be releasing radioactive steam.

The South Korean reactor, for instance, had issues early on with its fuel containers bowing; stiffening them had solved the problem.

Seawater, which can render a nuclear reactor permanently inoperable, now is at the center of efforts to keep the plant under control.

The hydraulic system of control rod drives is one of the key systems in a nuclear heating reactor.

The nuclear power units'pressure vessel is the core part of the nuclear reactor, and the heads are key parts of the pressure vessels.

In a tower reactor polymerization may be carried out in two zones.

It was already targeted to poke around a nuclear reactor in Siberia. I took it an hour out of its way, tops.

In the U. S, local governments have no control over reactor operations.

This uranium was never intended for weapons; it was fuel for a small nuclear reactor that scientists use for research.

We notice that the differences are that the water in the reactor vessel is not allowed to boil.

Without any electricity, the pumps won't be able to pump water through the hot reactor cores to cool them.

It bears mentioning that in the last fifty years, no navy reactor has ever had a catastrophic failure or melt down.

It operates similar to power station reactor, the heat generated by a nuclear reactor is used to raise steam to drive a turbine.

For nuclear energy to expand, the public must trust the nuclear industry. It must trust reactor operators to run their reactors safely.

Since the nuclear accident has occurred, the Japanese side has been damaged a number of days for the reactor cooling water.

An earlier fire and explosion in the No 4 reactor building is thought to have breached the protective walls around the pool.

We further construct a new reactor, coupled with a jacket and superconductive heat tubes and set up a two-dimensional dynamic model.

Validation efforts for the neutronics of a plutonium-erbium-zirconium oxide inert matrix light water reactor fuel.

As the high pressure drop, zeolite powder in the catalytic reaction of the application does not apply to fixed-bed reactor.

The performance of a pilot-scale anaerobic baffled reactor(ABR) treating effluent from a beet sugar industry was investigated.

If U. S. companies win just two of those reactor contracts, it will mean thousands of new jobs for American workers.

This article deals with output regulation of an adiabatic tubular reactor by virtue of a single manipulated input.

Graffiti on a wall in the ghost city of Pripyat near the fourth nuclear reactor (background) at the former Chernobyl nuclear-power plant.

Each "pebble" in a pebble-bed gas reactor is a graphite fuel sphere the size of a tennis ball.

The Gori-1 reactor, near the port city of Busan, was off line for two months after a fire in April destroyed one of the circuit breakers.

Due to its scarcity, Polonium-210 for commercial use is produced artificially in a nuclear reactor.

To protect the light-water reactor fuel supply, with thousands of centrifuge uranium enrichment plant is a modern operation.

China has already built one nuclear energy reactor at Chashma and is expected to complete a second at the same site next year.

The debate in the United States involves those living in the immediate vicinity of a reactor.

Some also said there might have been missteps in handling Reactor No. 1.

In 1995, there was a cover-up of the extent of an accident at the Monju fast-breeder reactor.

Studies have been made of reactor powered railway engines and hovercrafts, but these applicationsare generally regarded as marginal at best.

Reactivity worth of the thermal column of a MTR type swimming pool research reactor using low enriched uranium fuel.

Tepco was able to reduce the temperature and pressure inside the reactor, the nuclear-safety agency said.

After regression, the mathematic relation between oxygen transfer coefficient and up-flow speed of the air in the reactor is clarified .