Context. Galaxies either live in a cluster, group, or field environment. In the hierarchical framework, group environment bridges to cluster environment, as galaxies form groups before aggregating into clusters. principle, environmental mechanisms, such galaxy–galaxy interactions, can be more efficient than clusters due lower velocity dispersion, which lead changes properties of galaxies. This ...

Over the last twenty years, several algorithms have been proposed for automatic rule/constraint discovery from data, for the purpose of data cleaning. These algorithms look for constraints such as functional dependencies (FDs), conditional FDs (CFDs), inclusion dependencies (INDs), conditional INDs (CINDs), association rules, integrity constraints (ICs) and denial constraints (DCs), among other...

We present a complete logic for reasoning with functional dependencies (FDs) with semantics defined over classes of commutative integral partially ordered monoids and complete residuated lattices. The dependencies allow us to express stronger relationships between attribute values than the ordinary FDs. In our setting, the dependencies not only express that certain values are determined by othe...

The air fluorescence detectors (FDs) of the Telescope Array (TA) experiment have been constructed in a dessert of Utah, USA. We can measure the longitudinal developments of EASs directly with the FDs by detecting air fluorescence lights and determine the primary energies of ultra-high energy cosmic rays. In order for accurate observation and measurements of EASs, elaborate detector calibrations...

In this paper, the impact of vehicles in road tunnel on smoke spread in case of fire is illustrated using the FDS (Fire Dynamics Simulator) system. FDS is a CFD-based fire field model capable to simulate fire in various environments capturing a big variety of physical processes related to fire. A set of simulations of fire in a 300 m long two-lane single directional road tunnel with longitudina...

Particle physics is an exciting subject for high school students, and there have been various approaches on how to introduce the topic in classroom. Feynman diagrams (FDs) are often-used form of representation particle could play important role such introduction. However, their potential educational value has not yet investigated. To this end, we interviewed four experts field education opportu...

Korea’s first lunar mission, the Korea Pathfinder Lunar Orbiter (KPLO), aims to launch in mid-2022 via Space-X Falcon-9 vehicle. For successful flight operation of KPLO, Aerospace Research Institute (KARI) has designed and developed Flight Dynamics Subsystem (FDS). FDS is one subsystems KPLO Deep-Space Ground System (KDGS), which responsible for overall dynamics-related operation. currently suc...

A bstract We compare a state-of-the-art terahertz (THz) time domain spectroscopy (TDS) system and novel optoelectronic frequency (FDS) with respect to their performance in layer thickness measurements. use equal sample sets, THz optics, data evaluation methods for both spectrometers. On single-layer multi-layer dielectric samples, we found standard deviation of measurements below 0.2 µm TDS 0.5...