Benutzerschnittstelle erhöht Produktivität der Software-Entwicklung: Eine ergonomische Unix-Shell

Das Betriebssystem Unix wird weltweit wegen seines reichen Funktionsangebots bevorzugt. Das kann jedoch oft nicht genutzt werden wegen Maengeln in der angebotenen Benutzerschnittstelle (fuehrt zu 'reaktivem' Arbeiten). Vorgestellt wird deshalb die ergonomische Benutzerschnittstelle (Ergo-Shell), die durch ihre technischen und ergonomischen Merkmale dazu beitraegt, das Software-Entwickler Werkzeuge besser einsetzen koennen

Legal aspects of electric energy generation in a floating power plant

This paper discusses the characteristics of pollution and legal regulations governing investment projects affecting the environment. It describes a combined system of a compression ignition engine and a steam turbine, whose aim, when placed on a floating platform, is to produce electric energy in a so-called distributed generation system. Such a system involves a reciprocating internal combustion engine and a connected steam turbine system that uses the energy contained in the exhaust gas of the combustion engine. The paper ends with synthetic conclusions

Comparing combined gas tubrine/steam turbine and marine low speed piston engine/steam turbine systems in naval applications

The article compares combined systems in naval applications. The object of the analysis is the combined gas turbine/steam turbine system which is compared to the combined marine low-speed Diesel engine/steam turbine system. The comparison refers to the additional power and efficiency increase resulting from the use of the heat in the exhaust gas leaving the piston engine or the gas turbine. In the analysis a number of types of gas turbines with different exhaust gas temperatures and two large-power low-speed piston engines have been taken into account. The comparison bases on the assumption about comparable power ranges of the main engine