chain reaction

Hobart Indiana Police Car Hit In Chain Reaction Crash At 6100 Mississippi On 04-29-12.

Comments

Katz

The chain reaction of evil - hate begetting hate, wars producing more wars - must be broken, or we shall be plunged into annihilation. #MLK

Matsumoto

If one person can go out of their way to show compassion, it could start a chain reaction. People will never know how far a little kindness can go.

Itō

UGC Silver: Chain Reaction vs The Last Bosses

Anderson

chain reaction @kyandrovett https://t.co/OO0qIKKGt2

Mandadapu

Every interaction starts a chain reaction.

Sánchez

Ex-Regulator Says Reactors Are Flawed
By MATTHEW L. WALD
Published: April 8, 2013

WASHINGTON — All 104 nuclear power reactors now in operation in the United States have a safety problem that cannot be fixed and they should be replaced with newer technology, the former chairman of the Nuclear Regulatory Commission said on Monday. Shutting them all down at once is not practical, he said, but he supports phasing them out rather than trying to extend their lives.

Connect With Us on Twitter
Follow @NYTNational for breaking news and headlines.
Twitter List: Reporters and Editors
The position of the former chairman, Gregory B. Jaczko, is not unusual in that various anti-nuclear groups take the same stance. But it is highly unusual for a former head of the nuclear commission to so bluntly criticize an industry whose safety he was previously in charge of ensuring.

Asked why he did not make these points when he was chairman, Dr. Jaczko said in an interview after his remarks, “I didn’t really come to it until recently.”

“I was just thinking about the issues more, and watching as the industry and the regulators and the whole nuclear safety community continues to try to figure out how to address these very, very difficult problems,” which were made more evident by the 2011 Fukushima nuclear accident in Japan, he said. “Continuing to put Band-Aid on Band-Aid is not going to fix the problem.”

Dr. Jaczko made his remarks at the Carnegie International Nuclear Policy Conference in Washington in a session about the Fukushima accident. Dr. Jaczko said that many American reactors that had received permission from the nuclear commission to operate for 20 years beyond their initial 40-year licenses probably would not last that long. He also rejected as unfeasible changes proposed by the commission that would allow reactor owners to apply for a second 20-year extension, meaning that some reactors would run for a total of 80 years.

Dr. Jaczko cited a well-known characteristic of nuclear reactor fuel to continue to generate copious amounts of heat after a chain reaction is shut down. That “decay heat” is what led to the Fukushima meltdowns. The solution, he said, was probably smaller reactors in which the heat could not push the temperature to the fuel’s melting point.

The nuclear industry disagreed with Dr. Jaczko’s assessment. “U.S. nuclear energy facilities are operating safely,” said Marvin S. Fertel, the president and chief executive of the Nuclear Energy Institute, the industry’s trade association. “That was the case prior to Greg Jaczko’s tenure as Nuclear Regulatory Commission chairman. It was the case during his tenure as N.R.C. chairman, as acknowledged by the N.R.C.’s special Fukushima response task force and evidenced by a multitude of safety and performance indicators. It is still the case today.”

Dr. Jaczko resigned as chairman last summer after months of conflict with his four colleagues on the commission. He often voted in the minority on various safety questions, advocated more vigorous safety improvements, and was regarded with deep suspicion by the nuclear industry. A former aide to the Senate majority leader, Harry Reid of Nevada, he was appointed at Mr. Reid’s instigation and was instrumental in slowing progress on a proposed nuclear waste dump at Yucca Mountain, about 100 miles from Las Vegas.

González

@ascapexpo Would you sing some of The Sun - from Chain Reaction? @IamStevenT #asksteven

Kelly

"@muhammadhbaba: A positive attitude causes a chain reaction of positive thoughts, events and outcomes.

Hashimoto

First day of work at The Social House. Morning meeting with Jameson in Dublin, afternoon meeting with Chain Reaction Cycle in Belfast. Expecting a jet lag coma lapse at any moment.

Phillips

Chain Reaction by Hank Levy

Harris

Polymerase Chain Reaction:
Denaturation, Annealing, Extension

Welcome Back.... :D

Dash

killing a noob, in style. (minecraft Rube Goldberg/chain reaction)

Thomas

Domino Chain Reaction Art

Fujii

Orbszsz - Play this #Game on http://t.co/m09g64J0Ew http://t.co/eu7fgtpmEm #chain #orbs #orbszsz #pop #reaction

Iyer

Production planning for CHAIN REACTION starts today! xx

Sadangi

5000 Dominoes - The Never Ending Chain Reaction #002 [HD]

Sengupta

KATOWICE STUNT 2 - CHAIN ​​REACTION TEASER 2011 HD

Howard

@afc2nfc Did he sign? Oh yeah, I know that reaction all too well. If healthy, he is a very serviceable chain mover.

Green

Chain Reaction | Pilot

Poddar

Calculator FULL SET (Chain Reaction 12.29.2012)

Gokani

The advance run into is impetuously wired open door yours chain reaction checking count in 24 hours.:

Saitō

Being good to people is a contagious act. Let me challenge you as wake up this morning to start the chain reaction... http://t.co/XCqJenNp9x

Cox

If you help someone, they might help someone else and start a chain reaction. The chance that it might happen makes it totally worth it

Ortiz

“@RapperLAtruth: Having a positive attitude creates a chain reaction of positive thoughts which creates positive results.”

Collins

Chain Reaction w Hard Rock Cafe Warsaw - PEPSI ROCKS! 29.05.2012 - relacja

Azoulay

Never ever will I get my ears pierced from chain reaction

Yamamoto

Diana Ross & The Bee Gees - Chain Reaction (HD)

Edwards

@AllieBewBear69 lol hes all like "what did you do???" "ok that was a chain reaction from my doing im sorry"

Morris

Chain Reaction Forest Fire Simulation Experiment

Takeuchi

@HollywoodDanny come to back to chain reaction please!! i miss you guys :(

García

i just saw something that i could comment on and it would start an unbelievable chain reaction of arguments..im actually dying to do it..

Kaneko

1980 Chain Reaction Final Episode with Original Commercials Part 1

Jenkins

Nash Chain Reaction Bristol Angling Centre

Evans

:Synthesis

:Initiation

Initiation is the first step in cationic polymerization. During initiation, a carbenium ion is generated from which the polymer chain is made. The counterion should be non-nucleophilic, otherwise the reaction is terminated instantaneously. There are a variety of initiators available for cationic polymerization, and some of them require a coinitiator to generate the needed cationic species.[6]

:Classical protonic acids
Strong protic acids can be used to form a cationic initiating species. High concentrations of the acid are needed in order to produce sufficient quantities of the cationic species. The counterion (A–) produced must be weakly nucleophilic so as to prevent early termination due to combination with the protonated olefin. Common acids used are phosphoric, sulfuric, fluro-, and triflic acids. Only low molecular weight polymers are formed with these initiators.


:Initiation by protic acids

:Lewis acids/Friedel-Crafts catalysts

Lewis acids are the most common compounds used for initiation of cationic polymerization. The more popular Lewis acids are SnCl4, AlCl3, BF3, and TiCl4. Although these Lewis acids alone are able to induce polymerization, the reaction occurs much faster with a suitable cation source. The cation source can be water, alcohols, or even a carbocation donor such as an ester or an anhydride. In these systems the Lewis acid is referred to as a coinitiator while the cation source is the initiator. Upon reaction of the initiator with the coinitiator, an intermediate complex is formed which then goes on to react with the monomer unit. The counterion produced by the initiator-coinitiator complex is less nucleophilic than that of the Brønsted acid A– counterion. Halogens, such as chlorine and bromine, can also initiate cationic polymerization upon addition of the more active Lewis acids.[1]


Initiation with boron trifluoride (coinitiator) and water (initiator)