| Thursday 25 April 2024 | |
| Events for day: Wednesday 27 June 2018 |
| 11:00 - 12:00 Computational nanoscience group biweekly journal club Markov state modeling of sliding friction School NANO SCIENCES Markov state modeling of sliding friction Markov state modeling (MSM) has recently emerged as one of the key techniques for the discovery of collective variables and the analysis of rare events in molecular simulations. In particular in biochemistry this approach is successfully exploited to find the metastable states of complex systems and their evolution in thermal equilibrium, including rare events, such as a protein undergoing folding. The physics of sliding friction and its atomistic simulations under external forces constitute a nonequilibrium field where relevant variables are in principle unknown and where a proper ... 14:00 - 15:00 Weekly Seminar Determination of photocatalytical properties of copper and zirconium modified TiO2 by photothermal techniques School NANO SCIENCES Determination of photocatalytical properties of copper and zirconium modified TiO2 by photothermal techniques Nowadays, the need for minimizing the level of environmental pollution has increased attention to degradation of organic hazardous materials present in a wide range of industrial activities. The advanced oxidation process through the photoactivated reaction by photocatalysts, using TiO2, has been efficiently used to remove recalcitrant pollutants present in industrial wastewaters. However, the weak photon absorption in the visible spectrum of solar light limits its applications. Several successful attempts have been ... 14:00 - 15:00 Lecture Clustering with Outliers School MATHEMATICS Clustering problems are well-studied in a variety of fields such as data science, operations research, and computer science. Such problems include variants of center location problems, k-median, and k-means to name a few. In some cases, not all data points need to be clustered; some may be discarded for various reasons. For instance, some points may arise from noise in a data set or one might be willing to discard a certain fraction of the points to avoid incurring unnecessary overhead in the cost of a clustering solution. We study clustering problems with outliers. More specifically, we look at k-means where a small fraction of data points m ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Determination of photocatalytical properties of copper and zirconium modified TiO2 by photothermal techniques School PHYSICS Seminar Room (classroom A), Farmanieh Building, IPM ... 15:00 - 16:00 Weekly Seminar A 3 GHz RF Pulse Compressor for IPM Electron LINAC School PARTICLES AND ACCELERATORS Construction of an S-band linear accelerator (Linac) is ongoing at Institute for Research in Fundamental Sciences (IPM). The Linac operates at 2.9979 GHz and accelerates electrons up to the 8 MeV. The machine comprises a DC electron gun, a pre-buncher, a buncher and two accelerating tubes. The radio frequency pulse for driving accelerating structures is produced using a wideband 1.5 MW klystron. The beam dynamic studies show that increasing the RF power in accelerating tubes results in a higher electron beam energy. RF pulse compressor is the passive device that increases the RF peak power at the expense of pulse width. In the present talk, w ... |