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Key Concepts

  • Themes in the science of visualization
  • Simulation models
  • Visualization tools – graphs created using Excel and MATLAB
  • Distributed visualization
  • Metadata and Paradata for scientific visualization

Introduction

"We don’t see with our eyes. We see with our brains", Paul Bach-y-Rita.

In the last thirty years computer-based visualization has moved from an informal ad hoc tool designed to create particular results, to becoming a proper science in its own right. Universal generalisations and specifications as well as best practice guidelines are now available. Visualization methods are now being studied as an individual topic within various courses and modules; at all levels from undergraduate to postgraduate. Visualization is now the basis of numerous PhD titles and further research projects and programmes, funded across all the research councils and the infrastructure HE/FE funding agencies. This research and development has created a large toolkit for general use as well as individual methodologies for specialist user data sets, and has helped in understanding the barriers between the computer display and the human visual system. Visualization, it should be emphasised, is as much about gaining investigative insight as it is about enhancing presentations to tell a clearly specified story.

The science of visualization has been split into three themes; information visualization that studies methods for the representation of large-scale collections of often non-numerical information as well as the recommendations for use of graphical techniques to aid in the analysis of data. Scientific visualization, the second theme, was developed from previous often natural and experimental methods of displaying data, which has seen an explosion of users due to the deluge of in-silico experimental data (e.g. supercomputing and high throughput computing results) as well as real experimental capture equipment (e.g. 3D medical scanners, climate sensor data and astrophysical telescopes). Results often mimic reality, for example creating virtual wind-tunnel visualizations, but can be abstract, for example visualizing 6-dimensional tensor components using different geometric shapes (as in Figure 1). Visual analytics is the third theme. This merges both of these fields to focus on the user’s analytical reasoning, which often involves interactive visual interfaces and commonly employs various data-mining techniques as well as combining data across different databases.

This chapter introduces examples within these visualization themes, first providing an overview of simulation models and then specific examples from the creation of graphs using popular tools such as Excel and MATLAB. It then moves on to present the complexities of distributed visualization, as well as the role of adding metadata and paradata.

Visualization examples: information visualization example showing the content of the ½ million files on my hard disc ( Sequoiaview ); and two scientific visualizations, the first showing climate modelling using various animated glyphs to show flow strength ( Avizo ); and the second a selection of interactive superquadric glyphs selecting various forms from the six dimensions available within tensor stress components ( AVS/Express ).

Questions & Answers

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Research in a connected world. OpenStax CNX. Nov 22, 2009 Download for free at http://cnx.org/content/col10677/1.12
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