Prof.
John Carter
(University of the Witwatersrand)
, Dr
Zeblon Vilakazi
(University of the Witwatersrand)
27/01/2014, 09:00
Prof.
Bruce Mellado
(University of the Witwatersrand)
, Prof.
Michael Inggs
(University of Cape Town)
27/01/2014, 09:50
Dr
Daniel Adams
(DST)
27/01/2014, 10:30
Mr
Francois Kapp
(SKA)
27/01/2014, 14:00
Dr
Peter Jenni
(CERN)
27/01/2014, 14:45
Prof.
Jean Cleymans
(University of Cape Town)
27/01/2014, 16:10
Dr
Jonathan Weintroub
(Harvard-Smithsonian Center for Astrophysics)
28/01/2014, 09:00
Dr
Andreas Faltenbaher
(University of the Witwatersrand)
28/01/2014, 09:45
Dr
Nukri Komin
(University of the Witwatersrand)
, Prof.
Sergio Colafrancesco
(University of the Witwatersrand)
28/01/2014, 11:00
Dr
German Carrillo-Montolla
(University of the Witwatersrand)
28/01/2014, 12:00
Dr
Sahal Yacoob
(University of KwaZulu-Natal)
28/01/2014, 13:30
99.
An Overview of SANSA Earth Observation Data Processing and Storage: Challenges and Opportunities
Dr
Paida Mangara
(SANSA)
28/01/2014, 14:15
Prof.
David Davidson
(University of Stellenbosch)
28/01/2014, 15:00
Dr
Tom Dietel
(University of Cape Town)
28/01/2014, 16:00
Prof.
Andrew Chen
(University of the Witwatersrand)
28/01/2014, 16:45
Mr
Alberto Valero
(Instituto de Física Corpuscular (Universidad de Valencia-CSIC))
29/01/2014, 09:00
Dr
Carlos Solans
(CERN)
29/01/2014, 09:45
Mr
Jason Manley
(SKA)
29/01/2014, 11:00
Dr
Simon Winberg
(University of Cape Town)
30/01/2014, 11:45
Mr
Matthew Bridges
(University of Cape Town)
31/01/2014, 09:00
Mr
Albert Dove
(University of Witwatersrand)
, Dr
Ivan Hofsajer
(University of Witwatersrand)
31/01/2014, 09:00
Mr
Lerato Mohapi
(University of Cape Town)
31/01/2014, 09:20
Mr
Mitchell Cox
(University of the Witwatersrand)
31/01/2014, 09:20
Mr
Timothy Bristow
(University of Edinburgh)
31/01/2014, 09:35
Mr
Khobatha Setetemela
(University of Cape Town (RRSG))
31/01/2014, 09:40
Mr
Robert Reed
(University of the Witwatersrand)
31/01/2014, 09:50
Mr
Gerhard Harmsen
(University of the Witwatersrand)
, Mr
Thomas Wrigley
(University of the Witwatersrand)
31/01/2014, 10:05
Mr
Chih-Fong (Brady ) Wen
(University of KwaZulu Natal)
31/01/2014, 11:00
Mr
Matthew Cawood
(University of Cape Town)
31/01/2014, 11:00
Mr
Titus Masike
(University of the Witwatersrand)
31/01/2014, 11:20
Mr
Edward Steere
(University of the Witwatersrand)
31/01/2014, 11:20
Mr
Jonathan Padavatan
(Ithemba Labs)
31/01/2014, 11:35
Dr
Xifeng Ruan
(University of the Witwatersrand)
31/01/2014, 11:35
Mr
Robert Reed
(University of the Witwatersrand)
31/01/2014, 11:50
Mr
Gilad Amar
(University of Witwatersrand)
31/01/2014, 11:50
Mr
Warren Carlson
(University of the Witwatersrand)
31/01/2014, 12:05
Mr
Matthew Bridges
(University of Cape Town)
Since the adoption of Software Defined Radio (SDR) into the fields of Wireless Communications, RADAR and Radio Astronomy there has been an ever-growing need for high performance computer systems optimised for large bandwidth Digital Signal Processing. Some of the key factors which affect the performance throughput of these systems are:
1. The number of processing elements
2. Processing...
Mr
Robert Reed
(University of the Witwatersrand)
The Large Hadron Collider at CERN is scheduled to undergo another major
upgrade in what is called phase II in the year 2022. During this upgrade the ATLAS team will do major modifications to the detector to account for the increased luminosity factor of ten. Almost the entire read out electronics, situated on the front end, will be relocated to the back end as well as upgraded. A radically...
Mr
Albert Dove
(University of Witwatersrand)
, Dr
Ivan Hofsajer
(University of Witwatersrand)
The fields of radio astronomy and high energy partial physics are characterized by very large amounts of data. This can be seen in the CERN ATLAS experiment and the SKA radio telescope which need to gather and process very large data sets. The nature of these data sets is that they:
A. Are big
B. Stream, in the sense that they continually produce data over long periods of time.
C. ...
Mr
Mitchell Cox
(University of the Witwatersrand)
The Fast Fourier Transform (FFT) has many uses in science and in particular, radio astronomy, by the F-Engine of the correlator. This operation must be done for all polarisations of all antennas and is highly parallel. A possible alternative to the use of expensive GPUs and FPGAs is a cluster of ARM processors that can perform FFTs in parallel, cost effectively and with low power consumption....
Mr
Timothy Bristow
(University of Edinburgh)
The ATLAS trigger system is required to filter collisions in the detector and reduce the millions of collisions per second down to a few hundred events
which are stored and analysed further. The trigger system is split into a number of subsystems which run at different levels of abstraction. The High Level
Trigger is required to decode the bytestream from the detector into space points and...
Mr
Robert Reed
(University of the Witwatersrand)
The Large Hadron Collider (LHC) at CERN is currently undergoing a major
upgrade to handle higher energies. This will be the first of two upgrades and the expected amount of data produced by this upgraded system will far exceed current data throughput capabilities. It is expected that the same will be so for the Square Kilometre Array (SKA) Radio Telescope. A potential alternative to current...
Mr
Khobatha Setetemela
(University of Cape Town)
Traditional radios have a fixed hardware-defined functionality and typically support only one radio standard. Though resulting in simple, easy-to-optimise designs, the fixed architecture is not sustainable given the rapidly changing landscape of radio protocols and the increasing demand for seamless access. Software-defined radios (SDRs) were coined two decades ago to meet these and other...
Dr
Andreas Faltenbaher
(University of the Witwatersrand)
Our knowledge of the Universe is almost entirely based on electromagnetic
waves arriving from distant sources, such as stars, galaxies, quasars, etc.
Most of the electromagnetic radiation is shielded by the atmosphere of the
earth. Only visible light ($\lambda \approx 10^{-7} \rm m$) and radio waves
($\lambda \approx 1 \rm m$) arrive at sea level. This is why only optical and
radio...
Mr
Titus Masike
(University of the Witwatersrand)
Reviewing the architecture of the MobiDick4 system, this is used in the development of a test bench which will be used for the readout and control electronics of the Tile Calorimeter. Emphasis on the LED Board
Mr
Gilad Amar
(University of Witwatersrand)
An investigation into Higgs production, this study explores beyond Standard Model anomalous couplings in weak vector boson fusion. It is found that in the HWW vertex, effective strengths for anomalous couplings can be described by two constants lambda and lambda prime respectively. In an effort to discover how much data need be accrued by electron/positron colliders, to discriminate between...
Mr
PROSPERY C. SIMPEMBA
(School of Physics, University of Witwatersrand, Private Bag 3, Wits, 2050, South Africa)
Studies about active galactic nuclei (AGN) and radio jets of galaxies and blazars focus on seeking for the more acceptable physics, explaining energy jet formation, speeding up and collimation of these outflows. We review several articles on this subject to establish the unresolved matters about blazars and AGN in the already conducted studies. The challenge about the theories explaining the...
Mr
PROSPERY SIMPEMBA
(WITS/CBU)
Mr
Edward Steere
(University of the Witwatersrand)
Massive parallelism is a design paradigm in computer architecture which trades the complexity of sequential processing units for many simpler units operating in parallel [1]. Massively parallel architectures have a higher theoretical throughput than a similar sequential architecture, because many of the transistors which would otherwise be committed to inefficient optimisations are instead...
Prof.
Bruce Mellado
(University of the Witwatersrand)
The introduction of ARM processors to high-throughput computing requires quantifying the output rate. Data-flow in high-throughput computing can be evaluated analytically provided a number of assumptions. Provided that data distribution to the RAM, or input rate, can be sustained at a rate higher than the output rate, a number of expressions can be derived. These formulae can be expressed in...
Prof.
Bruce Mellado
(University of the Witwatersrand)
Mr
Chih-Fong (Brady ) Wen
(University of KwaZulu Natal)
A VHF interferometer can be used to measure the three-dimensional source of radiation emitted by lightning discharges. This is achieved by analysing the phase delay between the signals recorded at each of the three antennas.
Using a numerical model of an interferometer coded in R we simulated a simple interferometer, including the source, antennas and a data processing unit. First, a...
Dr
Jonathan Weintroub
(Harvard-Smithsonian Center for Astrophysics)
A broad international collaboration is building the Event Horizon Telescope (EHT). The aim is to test Einstein’s theory of General Relativity in one of the very few places it could break down: the strong gravity regime right at the edge of a black hole. The EHT is an earth-size VLBI array operating at the shortest radio wavelengths, that has achieved unprecedented angular resolution of a few...
Mr
Robert Reed
(University of the Witwatersrand)
The Large Hadron Collider (LHC) at CERN is currently undergoing a major
upgrade to handle higher energies. This will be the first of two upgrades and the expected amount of data produced by this upgraded system will far exceed current data throughput capabilities. It is expected that the same will be so for the Square Kilometre Array (SKA) Radio Telescope. A potential alternative to current...
Mr
Alberto Valero
(Instituto de Física Corpuscular (Universidad de Valencia-CSIC))
The ATLAS detector has been designed to study the proton-proton collisions produced by the Large Hadron Collider (LHC) at CERN. The trigger based data acquisition system of ATLAS is composed by a first level with detector specific hardware followed by a common software trigger. The events selected by the first level of trigger are transmitted to the off-detector electronics where the data is...
Mr
Alberto Valero
(Instituto de Física Corpuscular (Universidad de Valencia-CSIC))
Dr
Giovanni Lamanna
(Laboratoire d'Annecy-le-Vieux de Physique des Particules)
Prof.
Andrew Chen
(University of the Witwatersrand)
AGILE is an Italian Space Agency mission dedicated to observing the gamma-ray Universe, combining a gamma-ray imager (sensitive in the energy range 30 MeV–50 GeV), a hard X-ray imager (sensitive in the range 18–60 keV), a calorimeter (sensitive in the range 350 keV–100 MeV), and an anticoincidence system. AGILE was successfully launched on 2007 April 23 and continues to observe the gamma-ray...
Mr
Francois Kapp
(SKA)
The context, history and current status of the MeerKAT Digital Back End development
Prof.
Jean Cleymans
(University of Cape Town)
The national SA-CERN programme was launched in December 2008. The talk will
review the focus areas of the programme and its achievements thus far
and the future developments.
Pablo Moreno
(University of the Witwatersrand)
TileCal is the central hadronic calorimeter of the ATLAS experiment at the Large Hadron Collider at CERN. The main upgrade of the LHC to increase the instantaneous luminosity is scheduled for 2022. The High Luminosity LHC, also called upgrade phase-2, will imply a complete redesign of the read-out electronics in TileCal. In the new read-out architecture, the front-end electronics aims to...
