Menu
A+ A A-

An introduction to Hadron Structure from Lattice QCD

Event Details:

  • Date: Thursday 30th March 2017
  • Time: 16:00 - 17:00
  • Venue: The Cyprus Institute – Guy Ourisson Building, Seminar Room, 1st Floor, Athalassa Campus
  • Speaker: Christos Kallidonis, Computation-based Science and Technology Research Center, The Cyprus Institute

*The seminar will be in English and the event is open to the public.

We give an introduction to Quantum Chromodynamics (QCD), the fundamental theory describing the strong nuclear interactions. The numerical simulation of the theory on computers, known as Lattice QCD, and its large implication with high-performance-computing is discussed. We elaborate on the basic methods of Lattice QCD from which various key observables related to hadron structure are extracted.

A number of recently published results, such as the hadron masses, the  nucleon's quark content and the nucleon's spin, calculated directly from Lattice QCD is presented, highlighting their importance for the scientific community.

Contact: This email address is being protected from spambots. You need JavaScript enabled to view it. / 22 208 702

This event is part of the CyI Seminar Series.  View all CyI events.

  1. August 2016
  2. September 2016
For the initial monitoring of the building the SUI CyI research team installed a weather station on the roof, placed sensors inside the building and performed a thermal comfort assessment survey.

1. Climate data monitoring

Exterior
A Vantage Pro2 weather station was placed on the building roof to collect data from the SUI area. Regularly updated information about the climatic conditions could be found on the station webpage: http://www.weatherlink.com/user/suitepakcy/. The weather station base was designed and installed by the CyI technical equipment development team.

Interior
Twelve (12) HOBO data-loggers were placed in the building, for collecting temperature, humidity and light data. The data are collected every 30 minutes and will be elaborated with the HOBOware software.

2. Thermal comfort assessment questionnaire

A survey on occupant comfort satisfaction with the indoor environment in summer was conducted. The questionnaire was based on templates proposed by the HSE (http://www.hse.gov.uk/temperature/index.htm). A third of the total employees were asked and complementary measurements were made using a Heat Stress WBGT (Wet Bulb Globe Temperature) Meter, both for the indoor and the outdoor climatic conditions at the time of the survey.

Images below, from left to right:
Left: The Vantage Pro2 weather station
Middle: HOBO data logger placed in the working place – 1st floor
Right: Completed questionnaire (first page) – Ground floor.

1. Thermal imaging

Thermal images were taken using a T440 Flir thermal camera in order to find missing, damaged, or inadequate insulation, building envelope air leaks, moisture intrusion and other problems. Also, the main sources of radiant temperature were determined.

2. HOBO sensors data collection and analysis

The temperature, humidity, air movement and dew point data from the HOBO sensors were collected and analysed. The mean predicted vote (PMV) was calculated using the CBE Thermal Comfort Tool (http://comfort.cbe.berkeley.edu/EN). In all the spaces under monitoring the people are expected to be in thermal comfort, since all values are within the thermal comfort range of -0.7

Images below, from left to right:
Left: A thermal image from the mezzanine
Right: Graph. Thermal Comfort PMV

Publications & Media