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Monday, 3 January 2011

China declares nuclear breakthrough to solve uranium shortage



China declares nuclear breakthrough

Scientists announce potential solution to country's energy needs through a new technology to reprocess nuclear fuel.


 The new technology is expected to reduce China's heavy reliance on energy from coal-powered plants [GALLO/GETTY]

Chinese scientists have announced a breakthrough in nuclear fuel reprocessing technology that could end the country's energy supply problems, state media have said.

The technology developed by state-run China National Nuclear Corp will enable the re-use of irradiated nuclear fuel, China Central Television (CCTV) reported on Monday.

The technology developed and tested at the factory in the Gobi desert in the remote Gansu province will be able to boost the usage rate of uranium materials at nuclear plants by 60 folds.

"China's proven uranium sources will last only 50 to 70 years, but with the new technology [the] existing detected uranium resources can be used for 3,000 years," the CCTV report said.

The development is an important step forward in China's plans to increase the share of alternative power sources in its energy mix to reduce pollution and achieve energy security.

China has stepped up investment in nuclear power in an effort to slash carbon emissions and reduce the nation's heavy reliance on polluting coal, which presently accounts for 70 per cent of its power needs.

China, as well as France, the United Kingdom and Russia, actively support reprocessing as a means for the management of highly radioactive spent fuel and as a source of fissile material for future nuclear fuel supply.
But independent scientists argued that commercial application of nuclear fuel reprocessing has always been hindered by cost, technology, proliferation risk and safety challenges.

China has 171,400 tonnes of proven uranium resources spread mainly in eight provinces – Jiangxi, Guangdong, Hunan, Xinjiang, Inner Mongolia, Shaanxi, Liaoning and Yunnan.

Modest expansion
With a massive plans to push into nuclear power, China is making an effort to wean itself off coal, the dirtiest fossil fuel. It now has 12 working reactors with 10.15 gigawatt of total generating capacity.

Beijing has set an official target of 40 gigawatts of installed nuclear generating capacity by 2020, but the government indicated it could double the goal to about 80 gigawatts as faster expansion was one of the more feasible solutions for achieving emissions reduction goals.

As such, China will need to source more than 60 per cent of the uranium needed for its nuclear power plants from overseas by 2020, even if the country moves forward with a modest nuclear expansion plan, Chinese researchers say.

China, now the world's second-largest economy after surpassing Japan in 2010, aims to get 15 per cent of its power from renewable sources by 2020.

 

Source:Agencie
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Nuclear fuel feat to solve uranium shortage

China has made a breakthrough in spent nuclear fuel reprocessing technology, which could greatly extend uranium's usage rate and potentially solve the problem of its supply shortage.

The technology, which was developed by the No 404 factory under the China National Nuclear Corp (CNNC), is able to boost the usage rate of uranium materials at nuclear plants by 60 times.

"With the new technology, China's existing detected uranium resources can be used for 3,000 years," according to China Central Television (CCTV) on Monday.

China, the world's second largest economy, has more than 170,000 tons of detected uranium resources.

"We're among the few countries that can implement the recycling of nuclear fuel As such, we, to some extent, lead the world in this field," Sun Qin, general manger of CNNC, China's largest nuclear generator, was quoted by CCTV as saying.

The nation has strived to extend the usage rate of the strategically important resource to meet growing demand. The country aims to increase its nuclear power capacity to 40 gigawatts (gW) by 2020 compared to just more than 9 gW of nuclear capacity at present.

China, as one of the world's largest energy consumers, now has 12 nuclear power plants in operation, with 25 reactors under construction.

Uranium demand in China is expected to reach 20,000 tons annually by 2020, according to figures from the World Nuclear Association. But China will be able to produce only 2,400 tons of uranium that year.

China used 1,300 to 1,600 tons of uranium in 2009, Reuters reported earlier.

The world has around 4.7 million metric tons of identified uranium minerals. Increasing usage has sparked concerns that uranium demand may eclipse supply soon.

Extending the usage of existing uranium will help China fulfill its target to cut greenhouse gas emissions per unit of GDP by 40 to 45 percent by 2020 from 2005 levels.

"China has invested heavily in uranium exploration know-how and recycling technology to meet the nation's burgeoning needs and increase the ratio of nuclear energy in the total energy consumption mix," said Lin Boqiang, director of the China Center for Energy Economics Research at Xiamen University.

He added that such technology, including the recycling of spent nuclear fuel, is still at a very early stage. If it can be put into practical use, then China can be self-sufficient, he said.

Nuclear power accounted for about 2.2 percent of China's electricity generation by the end of 2009. By contrast, of the 30 countries that have nuclear power generators, 16 had 25 percent of their total electricity produced by nuclear power.

China Daily 
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Saturday, 1 January 2011

Cyber guarding

By PRIYA KULASAGARAN educate@thestar.com.my


Hackers may have a reputation for having dubious intentions, but there are those employed to hack into IT infrastructures to ensure their security. 

WITH high-profile cases such as that of Lin Mun Poo, the Malaysian who stole a massive quantity of financial account data by gaining access to the American Federal Reserve Bank, hackers have earned a rather notorious reputation.

However, Dell IT security manager Meling Mudin thinks that this mainstream definition of hacking is a narrow one.
Meling: A hacker is simply someone who likes to figure out how things work.
 
“It’s not just all about breaking into computer systems,” says Meling.

“For me, a hacker is simply someone who likes to figure out how things work, and proceeds to use that knowledge to invent creative new ways of using something.”

With almost 10 years of experience in the computer security field, the self-described ethical hacker professes a passion for tinkering around with technology.

“As an ethical hacker, I’m legally employed by a company to hack into their IT infrastructure to make sure that it is secure.

“The thrill I get from it is being able to understand how a particular software or system works. I don’t see the point of unlawfully cracking into someone else’s computer,” he says.

My job involves ...
... penetration testing of Dell’s internal and external information systems, which includes its databases, network routers and e-commerce websites. Basically I make sure that the company’s global IT infrastructure is secure – by hacking into it to detect any vulnerabilities.

Privacy is a particularly serious issue as scammers could potentially collect users’ personal data without their knowledge in order to gain access to bank accounts and credit card numbers. — File photo
 
The methodology for doing this is fairly routine. First, I gather all the information I need about the system and how it works, and then I look for possible vulnerabilities and try to exploit them. After that, I offer support in order to remedy any flaws in the system.

Hacking into a system is not just a matter of blindly going in and messing it up, because if I bring down a critical component in a company’s IT framework, it could potentially crash the whole thing and cost the company thousands.

So, I have to plan an attack so as to exploit any weaknesses without compromising the entire system.
Another thing my department does is a quarterly review to make sure that Dell’s system and security policy comply with the industry standards.

My morning starts with ...
... checking e-mails and going through my Google Reader to check out the latest updates in security threats and systems.

The rest of the day is usually just getting on with my work or updating clients on my progress.

As more people become increasingly reliant on technology for everyday tasks, there is a greater need for experts to ensure computer and network security. — AP file photo
 
Working at Dell, I only need to go into the office once a week to attend meetings, brief clients or have a one-on-one session with my supervisor.

The rest of the time, I’m free to do my work wherever I want, as long as deadlines are met. Typically, I would be working on multiple projects, and each one can take between three to 10 days to execute.

However, this varies from company to company. If you’re working at a consultancy firm for instance, you probably would have to go on-site to work at the client’s request.

To qualify, you need...

... a degree in information technology, computer science, or even engineering.

These days, there are numerous professional certifications to pursue if you wish to specialise in a certain area of IT security. You could for instance be a malware analyst or a forensic investigator.

But getting certified can be an expensive affair as these courses cost thousands. If you can’t afford it, it’s better to just build up experience in the field. The security industry in Malaysia is still quite small, so your peers will know how good you are as long as you take the initiative to prove yourself. As long as you are reputable, it doesn’t matter if you’re certified or not.

The best person for the job ...
... is someone who is passionate and interested in the world of computing.

You also need a sense of curiosity about how things work, and have the eagerness to keep learning.
Since you need to translate a lot of technical jargon into plain language for your clients, having good communication skills is equally important.

I love my job because ...
... of the continuous learning experience the field provides. In IT security, there are always new threats to circumvent and new methodologies to explore.

I enjoy getting into the mechanics of the latest technology and see how we can improve security systems.
What I dislike most...

... is nothing really! I honestly have no complaints, because it’s all part and parcel of my line of work.
Although a task like writing reports can get tedious at times, it is an important process in order to get the client to understand what it is that I have just fixed.

Prospects for the future...
... are very good. There will always be a demand for security professionals, especially as we get more and more reliant on technology for everyday tasks.

Privacy is a particularly serious issue as scammers could potentially collect your personal data without your knowledge in order to gain access to bank accounts, credit card numbers and so on.

A millionaire by 30?
 It is possible, as long as you plan your career. If you have the right attitude and enough experience, I certainly think that you can make a fair amount of money.