Navigation Links
How the kilogram has put on weight
Date:1/6/2013

grams so, unfortunately, we can't all take a couple of kilograms off our weight and pretend the Christmas over-indulgence never happened.

"But mass is such a fundamental unit that even this very small change is significant and the impact of a slight variation on a global scale is absolutely huge. There are cases of international trade in high-value materials - or waste - where every last microgram must be accounted for.

"What we have done at Newcastle is effectively give these surfaces a suntan. By exposing the surface to a mixture of UV and ozone we can remove the carbonaceous contamination and potentially bring prototype kilograms back to their ideal weight."

The kilogram is one of the seven SI base units from which all other units can be derived and is the only one which is measured against a physical object the IPK all others are standardised against known constants.

The Newcastle team are now moving on to study the addition of mercury from the atmosphere, something Professor Cumpson first identified while working at the NPL in the 1990's. But it is the development of techniques such as XPS which has allowed them to accurately measure how the build up of chemicals such as hydrocarbons can be most effectively removed.

Newcastle University hosts the 3million National XPS service funded by the Engineering and Physical Sciences Research Council (EPSRC).

Using a Theta-probe XPS machine the only one of its kind in the world - Professor Cumpson and Dr Sano showed how the UV/ozone wash could be used to remove contamination without damaging the platinum surface. "The Theta probe allows us to look at the composition of very thin layers by measuring the angle at which the electrons emerge from it," explains Professor Cumpson.

"Rather like an MRI scanner, it takes a cross section of the material but at an atomic level. The second part of the machine is the Argon cluster ion gun which fires charged 'droplets', each containing about a thousand
'/>"/>

Contact: Peter Cumpson
peter.cumpson@ncl.ac.uk
44-019-122-27911
Newcastle University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. UK takes the lead in redefining the kilogram
2. Weight Loss: Natural Way To Lose More Weight Than With Diet & Exercise Alone - Consumer Reporter Releases A New Video
3. Green Coffee Extract Continues Dominance Amongst Summers Top Weight Loss Products
4. Weightlessness weighs heavy on genes a flys perspective
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the publication ... 3 study of Zerenex (ferric citrate), the Company,s investigational ... hyperphosphatemia in patients with end-stage renal disease (ESRD) on ... with FErric CiTrate in EsrD) was published online today ... Nephrology ( JASN ). , This ...
(Date:7/24/2014)... , July 24, 2014  Asterias Biotherapeutics, Inc. ... emerging field of regenerative medicine, announced today that ... presentation to investors on Tuesday, July 29, 2014, ... presentation will include an overview of Asterias, business ... webcast, visit http://www.ustream.tv/channel/asterias-biotherapeutics at least 15 ...
(Date:7/24/2014)... to materialise. Yet, scientists are making progress in ... One such approach relies on quantum dotsa kind ... electric field. A new study demonstrates that changing ... (TQDs) with electrical impulses can help better control ... be used as quantum information units, which would ...
(Date:7/24/2014)... Research and Markets has announced ... Analytical Instruments Market 2014-2018" report to their offering. ... Genomics is the study of the gene and its ... and functions of proteomes or sets of proteins by ... involves the mapping of genes and DNA sequencing to ...
Breaking Biology Technology:Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4Global Genomics and Proteomics Analytical Instruments Market 2014-2018: Key Vendors are Agilent, Bio-Rad , F. Hoffmann, La Roche, Illumina, PerkinElmer and Thermo Fisher Scientific 2
... Calif., March 30 Oxygen Biotherapeutics, Inc. (OTC Bulletin ... shareholders, prospective investors and interested parties in Zurich, Switzerland ... will be to update the investment community on the ... be available to answer shareholder questions along with ...
... Amicus Therapeutics (Nasdaq: FOLD ) today announced ... be presenting at the upcoming 16th ... at New York City,s Millennium Broadway Hotel and Conference Center. ... April 2, 2009 at 9:30 a.m. EDT.Individuals can listen to ...
... Graeme Clark Scholarship WinnersDENVER, March 30 Cochlear ... today announced the winners of the 2009 Graeme ... Cochlear Scholarship Foundation has recognized the remarkable achievements ... implant - a small electronic device that can ...
Cached Biology Technology:Webcast Alert: Oxygen Biotherapeutics, Inc. Investor Meeting in Zurich, Switzerland 2Cochlear Americas Provides Support for Cochlear Implant Recipients to Pursue Higher Education 2Cochlear Americas Provides Support for Cochlear Implant Recipients to Pursue Higher Education 3Cochlear Americas Provides Support for Cochlear Implant Recipients to Pursue Higher Education 4Cochlear Americas Provides Support for Cochlear Implant Recipients to Pursue Higher Education 5
(Date:7/24/2014)... sobering examples of how wildlife loss leads to conflict ... by Wildlife Conservation Society (WCS) Health & Ecosystems: ... calls for an interdisciplinary approach to tackle global biodiversity ... about 15% of the world,s people and provides protein ... It should come as no surprise that today,s unprecedented ...
(Date:7/24/2014)... 2014 /PRNewswire-iReach/ -- The Geneva Healthcare Suite, an innovative ... cut emergency room wait times by an average of ... Center, according to a recent study published in the ... using the suite to access data from incoming patients, ... "Using Geneva,s technology platform we have been able ...
(Date:7/24/2014)... food or commercial food sale, has been heavily documented ... many species of primates and other mammals. However, ... the species being consumed are birds, particularly large birds ... meat made available for sale but the meat that ... brought to villages for consumption, we noted a significant ...
Breaking Biology News(10 mins):New study draws links between wildlife loss and social conflicts 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 3
... planetary scientists at Washington University in St. Louis are studying ... years ago. , While that might sound a bit like ... winter, the snails actually reveal clues about the climate and ... also could shed light on the possible role weather and ...
... recent Genomed-Health 2005 workshop in Tunisia, supported by ... life sciences in improving health in countries bordering ... discussed the importance of Euro-Mediterranean partnerships in order ... sciences ?in particular following the mapping of the ...
... News) and Karolinska Institutet announced today that they ... improve healthcare by accelerating the translation of basic ... and treatment. , During the next five years ... gene expression in patients with atherosclerosis, breast cancer, ...
Cached Biology News:Scientists find fossil proof of Egypt's ancient climate 2Scientists find fossil proof of Egypt's ancient climate 3Measuring the impact of post-genomics on Mediterranean populations 2Affymetrix and the Karolinska Institutet Announce Translational Medicine Strategic Alliance 2Affymetrix and the Karolinska Institutet Announce Translational Medicine Strategic Alliance 3
The piston kit includes 2 pistons to service one F10 pump of a BioLogic DuoFlow workstation....
BD BioCoat BD MatrigelTM Matrix 100 mm Culture Dishes for hepatocytes, tissue-culture treated polystyrene with a uniform application of MATRIGEL Matrix....
The F40 piston assembly is supplied as two assemblies to service one F40 pump of a BioLogic DuoFlow workstation....
...
Biology Products: