Flying Through The Heart
Scientists at Oxford University are building computer models of the
heart to improve the diagnosis and treatment of cardiac disease. Experimental
data forms part of the input to the models, and visualization of this data is
required in order to better understand its structure. The article “Flying
Through the Heart” describes how the visualization was performed by Jeremy
Walton, NAG Senior Technical Consultant, as part of a project at the Oxford
e-Research Centre (OeRC).
Using the OeRC video wall for large-scale display of 3D heart data.
This view shows the exterior of the heart.
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NAG and 'Design for Reliability' with Inference for
.NET
One of the major benefits of the
NAG Library is its inherent accuracy and reliability. This coupled
with its flexibility makes the use of the library in engineering common-place
and well documented. Many of the algorithms in
the library are well suited for use in Design for Reliability (DFR); an
emerging discipline in the field of reliability engineering that employs data
analysis tools and processes for designing reliability into products.
The use of the NAG C Library in the creation of data
analysis tools for DFR is highlighted in the White Paper “Quality by Design Scenario –
Survival/Failure/Reliability Analysis” written by experts at Blue
Reference. They’ve developed Inference
for .NET, a software add-in for Microsoft Word and Excel.
Inference for .NET enables engineers to embed Word or Excel documents with code from the NAG C Library, dynamic scripting
commands (IronPython and IronRuby), and structured
data – essentially transforming a standard document into a sophisticated data
analysis tool.
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White Paper:
Atmospheric Chemistry on the Web
The E-AIM model
is a Fortran atmospheric chemistry model with a web interface which has been
used for over a decade by researchers and students who carry out ~13,000
individual calculations annually. The primary application of the model is the
chemical thermodynamics of atmospheric particles related to air quality and
climate science, both of which are recognised as important environmental problems.
NAG software has been a key part of the model from its inception, and in this
article we outline how we have benefited from collaboration with NAG. We have
found that the usage and impact of our model have been greatly increased by
its availability on the web – a feature that is relatively easy to implement
– and we provide a simple example showing how to do this, and guidance that
may be valuable to Fortran programmers and NAG customers in many fields.
To read ‘Atmospheric Chemistry on the Web’,
written by Professor Simon L. Clegg, University of East Anglia and Professor
Anthony S. Wexler, University of California at Davis visit ‘Atmospheric
Chemistry on the Web’.
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NAG Toolbox for MATLAB: Demo Scripts Now Available
The following articles on the NAG
website describe the NAG Toolbox for MATLAB:
They contain code examples which
illustrate how to call some NAG Library routines from within MATLAB. The
examples have been extracted from demo scripts, and will not necessarily work
properly if cut and pasted into MATLAB. Following requests from users,
the articles have now been updated to incorporate links to full versions of
these scripts, which are available in an archive which can be downloaded
from http://www.nag.co.uk/NAGNews/NAGNews_Issue78.asp#Article4
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Supercomputing: How to stand out in the crowd
If you deploy the same high-performance computing
systems as everyone else, how can you possibly gain an edge over your rivals,
asks supercomputing expert Andrew Jones.
For many organisations, HPC is a strategic
activity. If you can optimise how HPC is used in your organisation then your
computation — and thus your design, testing and logistics — will be done
faster, or better, or more cost effectively. That optimisation creates a
business edge over the competition.
So the value of HPC is allied to a need to
differentiate, to step outside the norm enough to get your business ahead of
the competition.
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Ask the expert! - NAG Fortran Builder
Question:
“When using NAG
Fortran Builder to compile and link my program, I see messages from the
compiler and linker telling me the results of the compilation, on the
"Compile" tab at the bottom of the GUI. Is there any way to see what
commands were issued by Fortran Builder to the NAG compiler so that I can see
exactly how the program is linked, and perhaps use the same commands in a DOS
window?”
Answer:
“Yes there is. Go to the Fortran Builder menu bar and click on the
"View" button. One of the items on the list is "Previous Build
Message". When you select that, a new window should open. If you then
choose "Rebuild" from the "Project" menu, all compile and
link commands will be echoed into the "Previous Build Message"
window, along with any error messages associated with the build. If you have
a DOS window open, with your environment set up correctly, you can cut and
paste commands from the "Previous Build Message" window to the DOS
window.”
Answered
by Mick
Pont, Principal Technical Consultant at NAG.
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Out & About with NAG
NAG’s event calendar is very busy over the next
couple of months. If you’d like to talk to us about a NAG event or the
possibility of hosting a NAG Seminar at your organisation email us at for more information.
SIAM
Conference on ‘CSE’ 2009
2-6 March 2009 – Miami
NAG experts will be attending SIAM’s
‘Computational Science & Engineering’ conference. SIAM is holding the
conference
to “draw attention to the tremendous
range of major computational efforts on large problems in science and
engineering, to promote the interdisciplinary culture required to meet these
large-scale challenges, and to encourage the training of the next generation
of computational scientists.”
NAG has in-depth experience in the field
of CSE due to it being the provider of CSE to the UK’s national
supercomputer ‘HECToR’.
5 March 2009 - Rice University, Houston
Andrew Jones, Vice-President HPC Business at NAG is presenting "What
does performance mean in HPC?" at this event. For further information
visit the organiser's website.
23-27 March 2009 – London
NAG experts will be attending this landmark
conference/exhibition aimed at software developers, database professionals and IT
architects. The conference focuses on a wide range of topics,
including .NET Framework 4.0, Silverlight 2, WCF 4.0, Visual Studio 2010,
RESTful services, Windows Workflow, ASP.NET AJAX 4.0, SQL Server 2008, LINQ,
C# 3, .NET Patterns, Ruby, and more.
Presented by the NAG HECToR Team
A full list of forthcoming HECToR Training Courses
can be viewed on the official
HECToR website here
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Results Matter. Trust NAG.
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