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30 May 2014: A single sensor would cost 20 pence to produce, and can be reused up to 400 times, compared with disposable urine test strips, which cost about 10 pence per use.

28 Mar 2014: Felix Deschler. Commercial silicon-based solar cells - such as those seen on the roofs of houses across the country - operate at about 20% efficiency for converting the Sun’s rays into ... It’s taken over 20 years to achieve that rate of efficiency.

5 Aug 2014: In just two short years, perovskite-based solar cells have reached efficiencies of nearly 20%, a level which took conventional silicon-based solar cells 20 years.

16 Jun 2014: It’s a field of physics that 20 years ago was unknown.

20 Jun 2014: Share. Published. 20 Jun 2014. Image. The Faculty of Education. Credit: The Faculty of Education.

22 May 2014: The ceremony was conducted on Tuesday 20 May at the Department for Business, Innovation and Skills.

19 Nov 2014: In Ontario, 20% of government-monitored drinking water systems now come from landscapes containing lakes with depleted calcium concentrations that favour Holopedium, and this is only set to increase.”.

12 Feb 2014: I think an open working style leads to more creativity, so I guide them for about 20 per cent of the time, but for the other 80 per cent I like

18 Jun 2014: A newly-developed, highly accurate representation of the way in which neurons behave when performing movements such as reaching could not only enhance

13 Mar 2014: Ends. About Cambridge Science Festival. Now in its 20. th. year, the Cambridge Science Festival gives the public the opportunity to explore Cambridge science.