Maintenance Strategy for Engine Oil 100-Ton Truck Using Taguchi Method at Coal Mining Company

2021 ◽  
pp. 233-246
Author(s):  
Surya Atmadyaya ◽  
Mohamad Sazali Said ◽  
Azmi Hassan ◽  
Fauzan Rahman ◽  
Iwan Susanto
Keyword(s):  
Taguchi Method ◽  
Coal Mining ◽  
Engine Oil ◽  
Maintenance Strategy ◽  
Mining Company

Disaster at Buffalo Creek

2017 ◽  
Author(s):  
Kai Erikson
Keyword(s):  
West Virginia ◽  
Coal Mining ◽  
Mine Waste ◽  
Collective Trauma ◽  
Mining Company ◽  
Middle Fork ◽  
Buffalo Creek ◽  
The Individual

This chapter focuses on the Buffalo Creek flood in West Virginia that occurred on February 26, 1972. Almost everyone along Buffalo Creek depended on coal mining for a living. The creek is formed by three narrow forks meeting at the top of the hollow. The middle of these forks, known as Middle Fork, had been for many years the site of an enormous bank of mine waste. The waste was there because it solved two important disposal problems for the Buffalo Mining Company. This chapter describes the events that led to the Buffalo Creek disaster and its aftermath. It also considers the individual and collective trauma caused by the flood. Finally, it presents the story of a survivor named “Wilbur.”

scholarly journals FROM ORANJE NASSAU TO PULAU LAUT : THE INVEST OF COAL MINING IN SOUTHEAST KALIMANTAN FROM 1845 TO 1931

2016 ◽  
Vol 14 (2) ◽  
pp. 323
Author(s):  
Mansyur -
Keyword(s):  
Eighteenth Century ◽  
Coal Mining ◽  
19Th Century ◽  
Industrial Revolution ◽  
World Market ◽  
Mining Company ◽  
The World ◽  
Coal Market ◽  
Left And Right ◽  
The 19Th Century

European Industrial Revolution in the eighteenth century brought great changes not only in Europe itself but also in other parts of the world including Indonesia which was used to be a country of Dutch colony. The invention of steam-powered ships triggered the Dutch to use steam-powered vessels as the alteration of yachts, wind-powered ships, in the 19th century. At the beginning, the steam-powered ships used rotating wheels in the left and right side; however, the ships finally used ordinary windmills or propellers. The decrease and the lack of this production was getting worsened the competition of other producer countries in world market and the unstable coal market and in crisis year in 1930, Pulau Laut Mining Company production dropped so that it was closed down in the same year.

scholarly journals ANALISA RISIKO DAN KEUNTUNGAN INVESTASI SAHAM BATU BARA DI BURSA EFEK INDONESIA (Tahun 2010-2014)

2016 ◽  
Vol 13 (1) ◽  
pp. 42
Author(s):  
Siti Nur Zahroh
Keyword(s):  
Coal Mining ◽  
Value At Risk ◽  
Stock Exchange ◽  
Mining Company ◽  
Benefit Ratio ◽  
Production And Consumption ◽  
Value Loss ◽  
Return On Capital ◽  
Risk And Benefit ◽  
Level Of Risk

This research was motivated by the increasing value of the production and consumption of coal from year to year, but is not offset by an increase in new investment in this sector. Each selection of investment decisions certainly linked to the degree of risk and benefit ratio, in order to know how much future investment results that will be obtained with the level of risk to a minimum. The purpose of this study was to measure the level of risk and benefit ratio of shares in a coal mining company listed on the Stock Exchange during the study period 2010-2014. Calculation of the level of risk in this study was measured by VaR (Value at Risk) and the profit rate is measured with RAROC (Risk Adjusted Return on Capital). The results of this study indicate that the coal mining stocks are a potential value loss (high risk low return). The highest VaR value during the study period experienced by PKPK of 0.64300 or 64.30% in 2010. The market value of the highest RAROC during the observation period by ITMG in 2010 amounted to 0.4304 or 43%.

scholarly journals CONSTRUCTION PROCESS OF COAL MINING COMPANY HOUSING IN MITSUI MIIKE COAL MINE

2021 ◽  
Vol 86 (788) ◽  
pp. 2410-2421
Author(s):  
Sota ADACHI ◽  
Toshio OTSUKI ◽  
Naohiro TANIGUCHI ◽  
Atsuko YASUTAKE ◽  
Taisaku HASHIMOTO
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Construction Process ◽  
Mining Company ◽  
Company Housing
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