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X-WR-CALNAME;VALUE=TEXT:What's On At UWA
X-WR-TIMEZONE;VALUE=TEXT:Australia/Perth
METHOD:PUBLISH
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TZID:/softwarestudio.org/Olson_20010626_2/Australia/Perth
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DTSTART:19700101T000000
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BEGIN:VEVENT
UID:P-20170701T002427Z-3176-18265@events.uwa.edu.au
DTSTART;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170705T090000
DTEND;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170705T170000
CLASS:PUBLIC
CREATED:20170701T002427Z
DESCRIPTION:In the last twenty years\, many improvements have been made in
earth imaging at different scales using different technologies such as ac
tive/passive seismics\, electromagnetism\, potentials (gravity\, magnetism
\, electric potentials)\,
.\n\nThe wide variety of data to be inverted to
retrieve the earth's properties needs to develop or use different data in
version methods at different scales in time and space. Those methods can b
e also combined to take advantage of their respective potentialities. \n\n
The inversion methods can be based on local/global optimisation approaches
(generally gradient like approaches) or stochastic approaches (simulated
annealing\, genetic algorithms\, neighbourhood methods). The advantages an
d disadvantages will be discussed and some simple/theoretical or realistic
examples in electrical capacitance tomography or seismics will be shown.
\n\nIt is also extremely important to have a good forward problem solver a
ble to approximate the data as accurately as possible. Those techniques ca
n be based on finite differences on different grids at different orders in
space (staggered\, compact\, collocated)\, finite volumes or finite eleme
nts. Some stability and dispersion criteria will be also provided. \n\nDr
Martin will first show\, in the case of the wave propagation equation\, t
he different schemes that are commonly used\, their advantages and drawbac
ks. \n\nThe boundary conditions used in the direct problem are also import
ant and will be treated such as the paraxial conditions and the perfectly
matched layers approaches. This is crucial for many applications in seism
ic imaging\, for instance\, where solutions should not introduce spurious
modes from the outer boundaries into the computational domain that could d
eteriorate the solutions during the inverse problem.\n\nDr. Roland Martin
senior research scientist at the National Centre for Scientific Research\,
Université Paul Sabatier Toulouse 3\, France and has been working for
many years in France where he obtained his PhD in Geophysics (1998). He h
as been a researcher in Mexico City (1999-2004) before integrating the Fre
nch CNRS (equivalent to the Australian CSIRO) in 2005 at Pau University an
d GET laboratory in Toulouse. His main interests are the numerical modelli
ng in geophysics at different scales using different numerical techniques
for the forward and inverse problems. He is developing and applying those
techniques to the modelling and imaging the Earth at different scales: fro
m the near subsurface or laboratory scale to the Earth crust scale with so
me specific sites of study like the well monitored Pyrenees chain located
between Spain and France. Seismic and gravity dense measurements are main
ly used to obtain more information on both seismic wave velocities and den
sities in the Earth crust and to couple the structures to the surface usin
g not only high resolution numerical tools but also more complex physics i
n solid-fluid mechanical systems. In 2017\, Roland was awarded an Institut
e of Advanced Studies Robert and Maude Gledden Visiting Senior Fellowship.
\n\nSpeakers: Dr. Roland Martin\, senior research scientist at the Nationa
l Centre for Scientific Research\, Université Paul Sabatier Toulouse 3
\, France.
DTSTAMP:20170701T002427Z
LAST-MODIFIED:20170705T015058Z
LOCATION:Institute of Advanced Studies\, UWA
ORGANIZER;CN=Institute of Advanced Studies:MAILTO:ias@uwa.edu.au
SEQUENCE:2
SUMMARY:Numerical methods for forward and inverse problems in geophysics :
A masterclass with Dr. Roland Martin\, senior research scientist at the N
ational Centre for Scientific Research\, Université Paul Sabatier Toul
ouse 3\, France.
URL:http://events.uwa.edu.au/event/20170701T002427Z-3176-18265@events.uwa.
edu.au/whatson/csse
END:VEVENT
BEGIN:VEVENT
UID:P-20170630T102059Z-3176-20642@events.uwa.edu.au
DTSTART;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170711T180000
DTEND;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170711T190000
CLASS:PUBLIC
CREATED:20170630T102059Z
DESCRIPTION:In this lecture Dr Martin will present different high order nu
merical tools using finite-difference or finite element approaches to prop
agate seismic waves in a wide variety of Earth structures at different sca
les in order\, in the near future\, to couple them through different physi
cs related to different frequency content of the sources involved.\nHe wil
l discuss two applications that could be linked in the future: the Pyrenee
s chain imaging at moderate source frequencies and wet/dry (non-)linear vi
scoelastic wave modelling in wet/dry/non-consolidated granular materials i
n the near surface.\nDr Martin will present a hybrid inversion method that
allows us to image density distributions at the regional scale using both
seismic and gravity data. One main goal is to obtain densities and seismi
c wave velocities (P and S) in the lithosphere with a fine resolution to g
et important constraints on the mineralogic composition and thermal state
of the lithosphere. In the context of the Pyrenees (located between Spain
and France)\, accurate Vp and Vs seismic velocity models are computed firs
t on a 3D spectral element grid at the scale of the Pyrenees by inverting
teleseismic full waveforms. In a second step\, Vp velocities are mapped to
densities using empirical relations to build an a priori density model. B
GI and BRGM Bouguer gravity anomaly data sets are then inverted on the sam
e 3D spectral element grid as the Vp model at a resolution of 1-2 km by us
ing high-order numerical integration formulae. This procedure opens the po
ssibility to invert both teleseismic and gravity data on the same finite-e
lement grid. It can handle topography of the free surface in the same spec
tral-element distorted mesh that is used to solve the wave equation\, with
out performing extra interpolations between different grids and models. WG
S84 elliptical Earth curvature\, SRTM or ETOPO1 topographies are used.\nDr
Martin will reproduce numerically the response of seismic waves in granul
ar/porous media at the laboratory scale (01.-10kHZ sources) and this will
enable us to better understand the signals recorded close to the surface w
hen high frequency content will be used to better image the near surface\,
in particular by taking into account seasonal water content variations an
d complex rheologies and steep seismic velocity gradients present in the f
irst hundred meters depths.\nDr. Roland Martin is a senior research scient
ist at the National Centre for Scientific Research\, Université Paul Saba
tier Toulouse 3\, France and has been working for many years in France
where he obtained his PhD in Geophysics (1998). He has been a researcher i
n Mexico City (1999-2004) before integrating the French CNRS (equivalent t
o the Australian CSIRO) in 2005 at Pau University and GET laboratory in To
ulouse. His main interests are the numerical modelling in geophysics at di
fferent scales using different numerical techniques for the forward and in
verse problems. He is developing and applying those techniques to the mode
lling and imaging the Earth at different scales: from the near subsurface
or laboratory scale to the Earth crust scale with some specific sites of s
tudy like the well monitored Pyrenees chain located between Spain and Fran
ce. Seismic and gravity dense measurements are mainly used to obtain more
information on both seismic wave velocities and densities in the Earth cru
st and to couple the structures to the surface using not only high resolut
ion numerical tools but also more complex physics in solid-fluid mechanica
l systems. In 2017\, Roland was awarded an Institute of Advanced Studies R
obert and Maude Gledden Visiting Senior Fellowship.\n\nSpeakers: Dr. Rolan
d Martin\, senior research scientist at the National Centre for Scientific
Research\, Université Paul Sabatier Toulouse 3\, France.
DTSTAMP:20170630T102059Z
LAST-MODIFIED:20170705T015039Z
LOCATION:Webb Lecture Theatre\, UWA
ORGANIZER;CN=Institute of Advanced Studies:MAILTO:ias@uwa.edu.au
SEQUENCE:2
SUMMARY:Numerical Modelling and Imaging in Geophysics at Different Scales:
applications to the pyrenees chain and the subsurface/laboratory scale :
A public lecture by Dr. Roland Martin\, senior research scientist at the
National Centre for Scientific Research\, Université Paul Sabatier Tou
louse 3\, France.
URL:http://events.uwa.edu.au/event/20170630T102059Z-3176-20642@events.uwa.
edu.au/whatson/csse
END:VEVENT
BEGIN:VEVENT
UID:P-20170612T025531Z-3083-8837@events.uwa.edu.au
DTSTART;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170718T090000
DTEND;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170718T170000
CLASS:PUBLIC
CREATED:20170612T025531Z
DESCRIPTION:This course will cover topics such as:\n\n-Presenting data for
a single variable: Including an introduction to histograms\, box plots\,
and bar graphs \n\n-Visualisation of two or more variables: Including an i
ntroduction to scatterplots\, pairs plots\, parallel coordinate plot and v
ariable-width stack bar charts\n\n-Other plots and maps: Including a brief
introduction to plots for time series\, bubble plots and more\n\n-Data In
k: Essential parts of a graphic\, Tuftes Data-Ink ratio and how to incre
ase it\n\n-Colour and perception: Colour palettes\, preattentive features
\n\n-An introduction to ggplot2\n\nSpeakers: Alethea Rea
DTSTAMP:20170612T025531Z
LAST-MODIFIED:20170616T041801Z
LOCATION:MILC
ORGANIZER;CN=Alethea Rea:MAILTO:alethea.rea@uwa.edu.au
SEQUENCE:3
SUMMARY:Data Visualisation : Understanding how to display data
URL:http://events.uwa.edu.au/event/20170612T025531Z-3083-8837@events.uwa.e
du.au/whatson/csse
END:VEVENT
BEGIN:VEVENT
UID:P-20170701T002905Z-3176-9714@events.uwa.edu.au
DTSTART;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170719T100000
DTEND;TZID=/softwarestudio.org/Olson_20010626_2/Australia/Perth:20170719T120000
CLASS:PUBLIC
CREATED:20170701T002905Z
DESCRIPTION:This masterclass gives an overview of the fuzzy-modelbased con
trol systems with emphasis on stability analysis\, in particular for the i
ssues of relaxation of stability analysis results. The development of FMB
control from the concept of fuzzy logic first proposed in 1965 and early s
tage of fuzzymodel-free control ideas to the state-of-the-art FMB control
system analysis will be presented as a start. It then walks through the be
auty of fuzzy-model-free control to the advance of fuzzy-model-based contr
ol. Professor Lam will then present his notion on the partially/imperfectl
y premise matching and membership-function-dependent analysis\, which brin
g the stability analysis of fuzzy-model-based control system to another le
vel from the point of view on applicability\, practicality\, design issues
and relaxation of stability analysis. In short\, the design constraints a
nd conservativeness of stability analysis are alleviated compared with the
traditional approach. Various practical applications will be demonstrated
in support of the claims.\n\nProfessor Hak Keung Lam received the B.Eng.
(Hons.) and Ph.D. degrees from the Department of Electronic and Informatio
n Engineering\, The Hong Kong Polytechnic University\, Hong Kong\, in 1995
and 2000\, respectively. During the period of 2000 and 2005\, he worked w
ith the Department of Electronic and Information Engineering at The Hong K
ong Polytechnic University as PostDoctoral Fellow and Research Fellow resp
ectively. He joined as a Lecturer at Kings College London in 2005 and is
currently a Reader. His current research interests include intelligent co
ntrol and computational intelligence. He has served as a program committee
member\, international advisory board member\, invited session chair and
publication chair for various international conferences and a reviewer for
various books\, international journals and international conferences. He
is an associate editor for IEEE Transactions on Fuzzy Systems\, IEEE Trans
actions on Circuits and Systems II: Express Briefs\, IET Control Theory an
d Applications\, International Journal of Fuzzy Systems and Neorocomputing
\; and guest editor for a number of international journals. He is a coedit
or of two edited volumes: Control of Chaotic Nonlinear Circuits (World Sci
entific\, 2009) and Computational Intelligence and Its Applications (World
Scientific\, 2012)\, and author/coauthor of three monographs: Stability A
nalysis of Fuzzy-Model-Based Control Systems (Springer\, 2011)\, Polynomia
l Fuzzy Model Based Control Systems (Springer\, 2016) and Analysis and Syn
thesis for Interval Type-2 Fuzzy-Model-Based Systems (Springer\, 2016).\n\
nThis masterclass is jointly organised by the UWA Institute of Advanced St
udies and the Complex Data Modeling Engineering for Remote Operations (ERO
) group\, UWA Faculty of Engineering and Mathematical Sciences.\n\nSpeaker
s: Professor Hak Keung Lam\, Department of Informamtics\, Kings College
London.
DTSTAMP:20170701T002905Z
LAST-MODIFIED:20170705T015049Z
LOCATION:Institute of Advanced Studies\, UWA
ORGANIZER;CN=Institute of Advanced Studies:MAILTO:ias@uwa.edu.au
SEQUENCE:2
SUMMARY:An Overview to Fuzzy-Model-Based Control : A masterclass with A ma
sterclass with Professor Hak Keung Lam\, Department of Informamtics\, King
s College London.
URL:http://events.uwa.edu.au/event/20170701T002905Z-3176-9714@events.uwa.e
du.au/whatson/csse
END:VEVENT
END:VCALENDAR