As the utilization range of smart devices for infrastructure has widen its application owing to flourishing of smart devices, studies on the technologies to graft IT onto underground utilities are actively carried out. In particular, as underground utilities have a characteristic of invisibility, studies on a management system converged with augmented reality are demanded for the efficient mana...

Background: Fire and explosion hazards are extremely important in processing units. This study was performed to identify the risk centers, the potential damage caused by fire and explosion, and the days of production cessation in the processing company. Materials and Methods: The present qualitative case study was conducted using Dow’s index in 2015. The fire and explosion hazard index...

In spite of extensive prior research on generation of seismic waves by underground nuclear explosions, it is still not possible to provide a complete explanation for the observed wavefields, particularly at regional distances. Spherically symmetric explosion models embedded in layered elastic media effectively model the P phases generated by explosions, and the major characteristics of some ref...

If electrical and non-electrical equipment used in underground mines susceptible to firedamp coal dust or other industries with explosion hazard is not proper selected for operating explosive atmospheres, they are likely generate an ignition of the atmosphere result events significant environmental material damages and, moreover, human victims. Therefore, it mandatory responsible persons reach ...

ABSTRACT I analyse some properties of the luminous transient event SN 2019zrk and conclude that jets were main powering sources pre-explosion outburst (pre-cursor) ejection a massive circumstellar matter (CSM), very energetic explosion itself, post-explosion bump in light curve. The energy source is mainly companion (main sequence, Wolf–Rayet, neutron star, or black hole) star accreted mass lau...

In research studies, a student starts with writing a research proposal, followed up by intensive literature and industrial survey in his/her own research area. The student must perform his/her own research with validation under supervisor’s guidance. The student’s own research work must be differentiated from others work in order to demonstrate the unique originality and significance of the stu...

With the increasing complexity of control rooms and the information explosion, effective multitasking is now desired. Monochronicity and polychronicity, which describe a person's ability to do one thing and many things at a time, respectively, have been studied for a long time. However, it is not clear these abilities are related to various individual characteristics. Forty-eight Chinese partic...

The objective of this new project is to investigate the generation of complex seismic waves by explosions in media with realistic three-dimensional (3D) heterogeneity, including topography. To do this, we use information on subsurface heterogeneity from nuclear test sites to develop 3D models that have the characteristics of the emplacement media for actual nuclear tests. We then run calculatio...