Coal has for many years been considered as a resource of the past and as a result its importance has been underestimated. Yet coal still is the main pillar for generating electricity in most countries: A quarter of the worldwide primary energy consumption is provided by coal. While the world's...

In spite of the sharp decline of crude oil prices since the fall of 2008, the current price level of approximately $65 per barrel is significantly higher than the long-term average. The market power of the Organization of Petroleum Exporting Countries (OPEC), which is partially responsible for...

Die Bedeutung von Kohle wird heute oft unterschätzt, da sie lange als eine Ressource der Vergangenheit galt. Dabei ist Kohle nach wie vor Grundpfeiler der Stromerzeugung in den meisten Ländern: Ein Viertel des weltweiten Primärenergieverbrauchs wird durch Kohle gedeckt. Während die größten...

Trotz des starken Rückgangs der Rohölpreise seit dem Herbst 2008 ist das Preisniveau mit gegenwärtig rund 60 US-Dollar pro Fass immer noch deutlich höher als im langfristigen Durchschnitt. Die Marktmacht der Organisation erdölexportierender Länder (OPEC) ist nach wie vor sehr groß und...

In the context of stochastic uncertainty and the increasing complexity of logistics processes in the retail sector, managers face a problem in obtaining accurate forecasts for the dynamics of changes in key business performance indicators. The purpose of the present work is to assess the impact...

Nowadays, digitizing the data stream is enabling the evolution of logistics processes. The data-driven network logistics processes are evaluated by leading economic indicators. The purpose of this study is to further develop the algorithmic foundations of economic and mathematical modeling of...

Rhodes Grass crop is continuously cultivated in coastal area of Salalah and Batinah region of Sultanate of Oman and created a negative impact on agriculture production. The government authority stopped Rhodes grass cultivation in coastal area and encouraged farmers to develop new area at Najed....

Agricultural biomass supply chain consists of a number of interacted sequential operations affected by various variables, such as weather conditions, machinery systems, and biomass features. These facts make the process of biomass supply chain as a complex system that requires computational...