Seminars and Workshops
OCIAM runs a regular interdisciplinary workshop, usually on Friday mornings at 10am in DHSR1 (though the time and place can vary so check the schedule). These are a regular forum for current industrial and/or interdisciplinary problems to be presented and discussed with members of OCIAM. The aim is to develop or improve mathematical models, to analyse their behaviour, and so to provide insight into the physical processes and phenomena occurring. Anyone is welcome to attend. If you have a problem you would like to present, please contact the coordinator, Dr Rebecca Gower.
The next workshop is shown below. The full term's listing is available from the link on the left.
|Richard Todd (Dept. of Materials)||Industrial and Interdisciplinary Workshops||DH 1st floor SR|
|“Flash sintering” is a process reported by R Raj and co-workers in which very rapid densification of a ceramic powder compact is achieved by the passage of an electrical current through the specimen. Full density can be achieved in a few seconds (sintering normally takes several hours) and at furnace temperatures several hundred Kelvin below the temperatures required with conventional sintering. The name of the process comes from a runaway power spike that is observed at the point of sintering. Although it is acknowledged by Raj that Joule heating plays a role in the process, he and his co-authors claim that this is of minor importance and that entirely new physical effects must also be involved. However, the existence and possible relevance of these other effects of the electric field/current remains controversial. The aim of this workshop is to introduce the subject and to stimulate discussion of how mathematics could shed light on some the factors that are difficult to measure and understand experimentally.|
The main OCIAM seminar is the Industrial and Applied Mathematics seminar, which takes place in room DHSR1 of Dartington House from 4-5pm on Thursdays in full term. You can also join us afterwards for tea and cakes at 5pm in the OCIAM Common Room.
On Friday from 2.30-3.30pm in even weeks during full term the Mathematical Geoscience seminar takes place in DHSR3 in Dartington House.
These take place every fortnight on Tuesday mornings at 11am in DHSR3 in Dartington House.
These are for graduate students to talk about their work, and are closed to all senior members of the department (although postdocs may attend). They are held at 1:15pm on Tuesdays of even weeks during full term in DHSR1 in Dartington House.
These are occasional seminars held in the OCCAM common room in the Gibson Building at 10.10am on Wednesdays.
The next seminar in each series is listed below. The full term's listings are available from the links on the left.
|16:00||Jim Oliver (Oxford)||Industrial and Applied Mathematics Seminar||DH 1st floor SR|
|We investigate the effect of mass transfer on the evolution of a thin two-dimensional partially wetting drop. While the effects of viscous dissipation, capillarity, slip and uniform mass transfer are taken into account, the effects of inter alia gravity, surface tension gradients, vapour transport and heat transport are neglected in favour of mathematical tractability. Our matched asymptotic analysis reveals that the leading-order outer formulation and contact-line law that is selected in the small-slip limit depends delicately on both the sign and size of the mass transfer flux. We analyse the resulting evolution of the drop and report good agreement with numerical simulations.|
|Prof. Bruce Malamud (King's College London)||Mathematical Geoscience Seminar||DH 3rd floor SR|
|Landslides are generally associated with a trigger, such as an earthquake, a rapid snowmelt or a large storm. The trigger event can generate a single landslide or many thousands. This paper examines: (i) The frequency-area statistics of several triggered landslide event inventories, which are characterized by a three-parameter inverse-gamma probability distribution (exponential for small landslide areas, power-law for medium and large areas). (ii) The use of proxies (newspapers) for compiling long-time series of landslide activity in a given region, done in the context of the Emilia-Romagna region, northern Italy. (iii) A stochastic model developed to evaluate the probability of landslides intersecting a simple road network during a landslide triggering event.|
|Claire Lewis (University of Sheffield)||OCCAM Wednesday Morning Event||OCCAM Common Room (RI2.28)|
***** PLEASE NOTE THAT THIS WILL TAKE PLACE ON FRIDAY 7TH JUNE *****