Google is the most popular search engine among researchs and students.Here are some tips and tricks to make your goolgle search even better.

 Search Tips 

You can increase the accuracy and effectiveness of your searches on Google Scholar by adding "operators" that fine-tune your search terms.

Author search

If you know who wrote the paper you're looking for, you can simply add their last name to your search terms.If you are looking for papers on the subject of regression written by people named Richard. If you want to search on an author's full name, or last name and initials, enter the name in quotes: ["Richard"].

To find papers by Richard, you could try [author:"Richard"]

Other Operators

Google Scholar also supports most of the advanced operators in Google web search: 

• the "+" operator makes sure your results include common words, letters or numbers that Google's search technology generally ignores, as in [+Richard]; 

• 
  the "-" operator excludes all results that include this search term, as in [nanotube -author:ajayan]; 
• phrase search only returns results that include this exact phrase, as in ["as you like it"]; 
  the "OR" operator returns results that include either of your search terms, as in [stock call OR put]; 
  
• The "intitle:" operator as in [intitle:mars] only returns results that include your search term in the document's title.
  
  

       Need to know more about Advanced google scholar tips click here.

Google Image search

    Now you can search images by colors thanks to the following strings: “imgcolor=green” or “imgcolor=blue,red”.

Here is an example:
http://images.google.com/images?imgcolor=red&hl=en&q=nanotube

Sciencedaily reported about Silicon Nanotubes For Hydrogen Storage In Fuel Cell Vehicles in Apr. 24, 2008. In the study, Cao's group used powerful molecular modeling tools to compare the hydrogen storage capacities of newly developed silicon nanotubes to carbon nanotubes. They found that, in theory, silicon nanotubes can absorb hydrogen molecules more efficiently than carbon nanotubes under normal fuel cell operating conditions. The calculations pave the way for tests to determine whether silicon nanotubes can meet government standards for hydrogen storage, the scientists note.

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The possible applications for double-walled carbon nanotubes have excited scientists and engineers, particularly those working on developing renewable energy technologies. These tiny tubes, just two carbon atoms thick, are thin enough to be transparent, yet can still conduct electricity. This combination makes them well-suited for advanced solar panels, sensors and a host of other applications.

The problem with double-walled carbon nanotubes has been being able to produce a homogeneous supply of them. When double-walled carbon nanotubes are synthesized, the process also creates many of the single- and multi-walled variety. Given their small size, sorting the valuable double-walled tubes from the other types has posed a real challenge.

Two researchers from Northwestern University outline a new process for efficiently gathering up these coveted double-walled carbon nanotubes.

 The future generation computers will be small,ultrafast and powerfull.Israel Scientists are reporting the first simple and inexpensive method for building the large-scale networks of single-walled carbon nanotubes (SWCNT) needed for using these microscopic wisps in a future generation of faster, smaller, and more powerful computers and portable electronic devices.
  The study describes a method to manufacture and assemble large arrays of SWCNTs into an integrated circuit format. It can be used on a variety of surfaces and produced on an industrial scale. The process involves creating networks of nanotubes suspended between silicon pillars, which are then transferred onto other surfaces by direct stamping, the researchers say.

       Research led by Vincent Meunier of Oak Ridge National Laboratory's Computer Science and Mathematics Division showed that the structural defects introduced into carbon nanotubes could lead the way to carbon nanotube circuits.
     Individual carbon nanotubes are excellent conductors of electricity, but that conductivity goes away when they are connected together into circuits because the junctions act as barriers, and the connections are effective insulators.

However, work conducted at the Department of Energy's Center for Nanophase Materials Sciences at ORNL and Mexico's National Laboratory for Nanoscience and Nanotechnology Research shows that imperfections in the carbon lattice structure, which is typically hexagonal, improve conductivity between nanotubes.

The finding could lead to nanoscale circuits that enable more compact and more powerful computers made of carbon nanotube materials that outperform silicon.