Traction drive system design considerations for a lunar roving vehicle

Optimum design considerations of traction drive for lunar roving vehicl

Modern Architecture in Dallas, Texas

The purpose of this study is to show that an awareness of modern architecture is developing in Dallas, Texas. This will be shown by an analysis of several recently constructed residential, civic, and commercial buildings. The contributions of American and European architects who have influenced our contemporary architecture are reviewed to in order to develop a background for this study. This will be shown by an analysis of several recently constructed residential, civic and commercial buildings

Perencanaan Kawasan Prioritas Penyediaan Air Bersih Menggunakan Fuzzy Multi Criteria Decision Making

The Provision of water for the community, there are some problems and until now can not be overcome completely. Especially in slum areas that are prone to water so that people have difficulty to get water. Many of slums in Kab. Lingga becomes a separate problem for the planning of water supply, from the problem it is designed a system that aims to determine the priority area of water supply by implementation the fuzzy multi criteria decision making method in the planning of the priority area of water supply, obtaining the region with the highest total integral value that is Marok Tua with a value of α0 is 0,34375, α0,5 is 0,51875, α1 is 0,69375

Physicochemical water quality of the Mfoundi River watershed at Yaoundé, Cameroon, and its relevance to the distribution of bacterial indicators of faecal contamination.

Water quality of the Mfoundi River and four of its tributaries was studied by assessing some physicochemical variables (temperature, pH, conductivity, chlorides, phosphates and nitrogen ammonia, dissolved oxygen and carbon dioxide, organic matter content and Biological Oxygen Demand) and their influence on the distribution of bacterial indicators of faecal contamination (total coliform, faecal coliform and faecal streptococci). For this, standard methods for the examination of physicochemical parameters in water were followed, and statistical analysis (Pearson correlations) used to establish any relationships between physicochemical and biological variables. Our results revealed that almost all of the examined physicochemical variables exceeded World Health Organization (WHO) guidelines for recreational water. This was in agreement with a previous microbiological study indicating that these waters were not safe for human use or primary contact according to water quality standards established by the WHO. Results of our correlation analysis suggested that physicochemical and biological variables interact in complicated ways reflecting the complex processes occurring in the natural environment. It was also concluded that pollution in the Mfoundi River watershed poses an increased risk of infection for users and there exists an urgent need to control dumping of wastewater into this watershed

Semiring and semimodule issues in MV-algebras

In this paper we propose a semiring-theoretic approach to MV-algebras based on the connection between such algebras and idempotent semirings - such an approach naturally imposing the introduction and study of a suitable corresponding class of semimodules, called MV-semimodules. We present several results addressed toward a semiring theory for MV-algebras. In particular we show a representation of MV-algebras as a subsemiring of the endomorphism semiring of a semilattice, the construction of the Grothendieck group of a semiring and its functorial nature, and the effect of Mundici categorical equivalence between MV-algebras and lattice-ordered Abelian groups with a distinguished strong order unit upon the relationship between MV-semimodules and semimodules over idempotent semifields.Comment: This version contains some corrections to some results at the end of Section