| Friday 26 April 2024 | |
| Events for day: Wednesday 01 July 2020 |
| 11:00 - 12:00 Wednesday Weekly Seminar-skyroom PMT glass window sensitivity to gamma-rays: A digital signal processing approach School PARTICLES AND ACCELERATORS Based on :https://doi.org/10.1016/j.nima.2020.163401 Abstract: A digital data acquisition system together with MATLAB software for data analysis were utilised to measure the pulse specification of the scintillation detector assembly. Besides, the sensitivity of a photomultiplier tube (PMT) window to gamma-rays was studied to discriminate the signals produced as a result of gamma-ray interactions inside the glass window from those originating from the scintillator cell. The result showed that an algorithm based on the time features was capable to evaluate the contributions of these two different signals. < ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Nematic Liquid Crystal Colloids As Elastic Multipoles; and Their Atomic Properties School PHYSICS Abstract: Colloids in nematic liquid crystals (NLCs) locally distort the uniform nematic order because of the boundary conditions on their surfaces so-called *surface anchoring*. This behavior naturally increases the free energy amount. Under some conditions, adjacent colloids can reduce the free energy by sharing a part of their accompanying distortions and make elastic bonds, just like atoms share their electrons in covalent bonds. The colloids in NLCs even make the specific number of bonds in specific directions depending on their shape and surface anchorings. This effect allows the colloids to form various crystalline and ... 14:00 - 15:00 Weekly Webinar Nematic Liquid Crystal Colloids As Elastic Multipoles; and Their Atomic Properties School NANO SCIENCES Nematic Liquid Crystal Colloids As Elastic Multipoles; and Their Atomic Properties Abstract: Colloids in nematic liquid crystals (NLCs) locally distort the uniform nematic order because of the boundary conditions on their surfaces so-called *surface anchoring*. This behavior naturally increases the free energy amount. Under some conditions, adjacent colloids can reduce the free energy by sharing a part of their accompanying distortions and make elastic bonds, just like atoms share their electrons in covalent bonds. The colloids in NLCs even make the specific number of bonds in specific directions de ... 15:30 - 17:30 Mathtematical Logic Weekly Seminar Dynamic Topological Logic School MATHEMATICS Abstract: Dynamic (topological) systems are mathematical models of change or movement in space which have applications in various branches of mathematics and the physical sciences. Formally, they consist of pairs (X,S), where X is a topological space and S: X->X is continuous. From a modal logic perspective this natually leads to a combination of spatial and temporal modal logics called Dynamic Topological Logic (DTL). In this two-day course we will cover the main results and techniques leading up to the state of the art in the field of Dynamic Topological Logic. The proposed schecule is as follows. DAY 1 (24/06/2020) |