Research
Super-efficient N-reactors
by Neutron on Oct.09, 2005, under Nuclear, Research
Chinese scientists are planning to build super-efficient nuclear reactors by 2010 that can maximise uranium burn-up, minimise waste while quenching the energy crunch facing the communist giant.
If the first experimental reactor, set to be in operation by 2010, is successful, the technology could help relieve China’s uranium supply problems as the country accelerates nuclear power plant construction.
China Academy of Atomic Science President Zhao Zhixiang said a team of scientists has already mapped a detailed plan to speed up research and utilisation of the so-called next-generation fast reactors.
The new reactors are expected to burn 60-70 per cent of their uranium fuel — a conventional reactor consumes only 0.7 per cent of the uranium it is fed.
“This kind of reactor can greatly improve the efficiency of fuel burn-up, and we are trying our best to put the experimental reactor into use over the next five years,” Zhao was quoted as saying by China Daily.
Current reactors are only able to harness the power of 0.7 per cent of the radioactive isotopes found in natural uranium.
In the fast reactor, the process is optimised so that more of the previously untapped isotopes can be used to generate electricity, burning-up fuel at least 60 times more efficiently than in a normal reactor.
-Cool. Now i wonder what kind of reactors would that be ?! Even the chinese guy in my department didn’t have any idea about this but hey if this works, another thumbs up for Nuke power !
Nuclear or not : that is the question
by Neutron on Oct.03, 2005, under Nuclear, Research
Read on for a researcher’s viewpoint argument on whether or not “Nuclear Energy” is the best option around at this stage of development. This is a free ebook that covers in detail the different risks and benefits of nuclear power from a scientific perspective but simple enough to be understood by everyone. Quite frankly, i find the book written without much prejudice to either side of the argument. Some of the analysis shown is quite interesting too.
I still haven’t had time to read the whole book compbut will comment in more detail when i do. For now, here’s the quote that caught my eye and led me to the book.
If nuclear power was used to the fullest practical extent in the United States, we would need about 300 power plants of the type now in use. The waste produced each year would then be enough to kill (300 x 50 million =) over 10 billion people. I have authored over 250 scientific papers over the past 35 years presenting tens of thousands of pieces of data, but that “over 10 billion” number is the one most frequently quoted. Rarely quoted, however, are the other numbers given along with it: we produce enough chlorine gas each year to kill 400 trillion people, enough phosgene to kill 20 trillion, enough ammonia and hydrogen cyanide to kill 6 trillion with each, enough barium to kill 100 billion, and enough arsenic trioxide to kill 10 billion. All of these numbers are calculated, as for the radioactive waste, on the assumption that all of it gets into people. I hope these comparisons dissolve the fear that, in generating nuclear electricity, we are producing unprecedented quantities of toxic materials.
- If you ask me, that is a profound and insightful statement. Another thumbs up for the book ! Definitely a must read for everyone – both pro and anti nuclear folks.
The Nine Billion Names Of God
by Neutron on Sep.18, 2005, under Computers, Musings, Research
One nice short story after a long time. You’ve gotta read this.
Here’s a excerpt from the story.
You ever wonder why Google doesn’t cache it’s own searches?
They program around it.
No. That’s what you think. That’s what everyone thinks. But it started back when Google was just a thesis project, back when it was just a drop in the data sea. No one thought to stop it back then. That web site you had, the one you forgot about. Almost everyone’s got one of those, right? But Google doesn’t forget. Google’s studied that thing so many times that it’s studied its own caches of you. What do you figure happens, when a site gets so big that it’s bigger than the internet?
It’s still a part of the internet, though.
No. Now, the internet is a part of Google.
Cool !
Sines And Cosines are history !
by Neutron on Sep.17, 2005, under Educational, Math, Research
I am not drunk and babbling gibberish. This is news. One fundamental theory which aims to make the use of trigonometry easier and more accurate. Proposed by Dr Norman Wildberger, a professor at University of New South Wales, this theory replaces angles to which we are so much used to by now, with a concept called as ‘spread’.
Here’s an excerpt from an article about this theory.
Established by the ancient Greeks and Romans, trigonometry is used in surveying, navigation, engineering, construction and the sciences to calculate the relationships between the sides and vertices of triangles.
“Generations of students have struggled with classical trigonometry because the framework is wrong,” says Wildberger, whose book is titled Divine Proportions: Rational Trigonometry to Universal Geometry (Wild Egg books).
Dr Wildberger has replaced traditional ideas of angles and distance with new concepts called “spread” and “quadrance”.
These new concepts mean that trigonometric problems can be done with algebra,” says Wildberger, an associate professor of mathematics at UNSW.
He has also written a book called ‘The Divine Proportions : Rational Trigonometry to Universal Geometry‘ by N J Wildberger. There is a chapter available for preview.
On first look, the concepts are straightforward in a logical sense. But i do not see how it simplifies and eliminates the calculations that are presently being done with sines and cosines. Well that’s just me and i could be wrong ! Maybe this is a revolutionary theory that is going to change how we look at things in the future.
Yet another energy creator
by Neutron on Aug.08, 2005, under Nuclear, Research
Read an article today “Chemist Tries to Solve World’s Energy Woes” at Livescience. Chemist Dr. Daniel Nocera at MIT is trying to use the bountiful energy in sunlight to split water into its basic components, hydrogen and oxygen.
Well the research is still underway and is probably far from being complete but there could be some potential here. If it works, is practical and feasible, then in the future, we might be able to use something like this. Although i very seriously doubt the use of sunlight as a perpetual energy source for such a reaction, i would love to be proved wrong.
Here is an excerpt from the article where Dr. Nocera talks about future energy needs.
Nocera cites a calculation by Caltech chemist Nathan Lewis that power demands in 2050 will be so great that just to keep carbon dioxide emissions at twice preindustrial levels, a nuclear plant would have to be built every two days. There’s not enough room on the planet’s surface for other widely touted solutions such as wind and biomass to have much impact.
I seriously do not know on why people are so skeptical about the use of nuclear energy for producing power. It is much much safer and foolproof than it used to be; We can get almost limitless and perpetual energy if we produce fuel rods in Breeder reactors; It is environmentally friendly and clean. History has taught us a bad lesson about reactors but isn’t it time to move forward and think about how not to repeat the history by making advanced safety measures to avoid any kind of catastrophe. And safety is one of the important aspects that we are being taught. The end result is not just about producing power but to produce clean, safe power. And we are getting there …
I for one, strongly believe that reactors are the cleanest answer available to us to meet all the energy needs of the future. It is vital to realize this fact and start building reactors and reduce the usage of fossil fuels as much as possible before we end up imposing doom on ourselves soon. But oh well since economics and politics are involved in this earth saving venture, i know that we will wait until the situation that Norcera portrays in the excerpt is reached …
My .NET blog is up again !
by Neutron on Jul.22, 2005, under Programming, Research
Well finally, after a long time, my .NET blog over at Dotnetjunkies is back up with an updated version of .TEXT. Not that i would have blogged non-stop with all the work i’ve been having all this time but right now, it really does make sense for me to blog again on some programming tips and tricks.
My bright side of my research, apart from the beautiful physics behind it all, is that it involves loads of programming. And i just recently decided to shift from MATLAB to .NET to get my research going. One of the main reasons behind that decision was ‘Speed’ ! Before you start shouting at me, yes, C++ would have been a more viable option, considering that i have lots of computation involving Matrices and Vectors but my benchmarks with some basic ported code from MATLAB did prove that the speed of C#.NET is good enough for now. I do not think that once the IL is converted into native image, with all the code and compiler optimizations inserted in at the right places, there will be a great difference in performance between C++ and C#.
So coming back to my point, i have learnt lots of algorithms, tips and bumped into some great software on the way while doing my research and believe that i can start writing again on my blog. Eventhough there were butt loads of comment spam before, i guess that the new version has a control over that and would now be a better place to write my programming experience from now on.
So watch out soon for my .NET post after almost exactly a year of hiatus.