The paper describes two Monte Carlo codes dedicated to muon simulations: MUSIC (MUon SImulation Code) and MUSUN (MUon Simulations UNderground). MUSIC is a package for muon transport through matter. It is particularly useful for propagating muons through large thickness of rock or water, for instance from the surface down to underground/underwater laboratory. MUSUN is designed to use the results...

Mobile communication system for underground coal mines is far more behind the one on surface for the unique underground tunnel environment and safety requirements. Though our previous CDMA System V1.0 can solve the problems of coal mine communication well in regular environments, it still remains a challenging issue for emergency handling. In this paper, we propose a novel integrated RFID and s...

One of Indonesia’s most common underground economy practices is the emergence informal markets in community. This study aimed to identify pattern power structure Roma merchants Malang City from an institutional economic perspective. In this study, method used a descriptive qualitative approach with phenomenological type. uses primary data, data directly obtained interviews and observations. The...

Underground coal fires are a major disaster that needs to be urgently addressed in the mining industry, as they can cause waste of resources, environmental pollution, threaten life and health species, serious damage society economy. Currently, research on prevention control underground focuses more technical level lacks scientific guidance at methodological level. Based this gap, paper uses Cit...

This paper is a reply to Barry Ickes' critique of my paper “Trust versus Illusion: What is Driving Demonetization in Russia?” in which I show that the data reject Barry Ickes' Virtual Economy explanation of barter in Russia in favor of an institutional explanation based on the lack of trust. JEL Classification: D20, G30, O10, P30