This paper presents a new approach, called knowledge-base reduction, to the problem of checking knowledge bases for inconsistency and redundancy. The algorithm presented here makes use of concepts and techniques that have recently been advocated by de Kleer [deKleer, 19861 in conjunction with an assumption-based truth maintenance system. Knowledge-base reduction is more comprehensive than previ...

Nowadays fuzzy logic is increasingly used in decision-aided systems since it offers several advantages over other traditional decision-making techniques. The fuzzy decision support systems can easily deal with incomplete and/or imprecise knowledge applied to either linear or nonlinear problems. This paper presents the implementation of a combination of a Real/Binary-Like coded Genetic Algorithm...

The aim of this paper is to analyse the impact of pole pair number on the efficiency of an induction generator designed for a mini hydro power plant. Six induction generators with different number of poles were designed: 2, 3, 6, 10 and 14. The basic point of this study is Kaplan turbine, which considering its rotational speed can be directly connected to a 14-pole induction generator. All othe...

In this paper we study the tradeoff between parallelism and communication cost in a map-reduce computation. For any problem that is not “embarrassingly parallel,” the finer we partition the work of the reducers so that more parallelism can be extracted, the greater will be the total communication between mappers and reducers. We introduce a model of problems that can be solved in a single round...

Chromate [Cr(VI)] is a serious environmental pollutant, which is amenable to bacterial bioremediation. NfsA, the major oxygen-insensitive nitroreductase of Escherichia coli, is a flavoprotein that is able to reduce chromate to less soluble and less toxic Cr(III). We show that this process involves single-electron transfer, giving rise to a flavin semiquinone form of NfsA and Cr(V) as intermedia...

Instalasi biogester menggunakan pengaduk (Mixer) merupakan suatu alat hasil dari rancang bangun yang digunakan untuk mendapatkan gas lebih cepat dan mengurangi beban manusia dalam prosespengadukan ditinjau segi kecepatan, tenaga, waktu, jumlah tekanan di hasilkan. Penelitianini bertujuan merancang instalasi dengan (mixer) mengetahuihasil didapat kotoran ayam rancangan tersebut. Metode adalaheks...