We study strong compactly aligned product systems of ℤ + over a C*-algebra A. provide description their Cuntz-Nica-Pimsner algebra in terms tractable relations coming from ideals This approach encompasses where the left action is given by compacts, as well wide class higher rank graphs (beyond row-finite). Moreover we analyze factorial languages and C*-algebras. Many one results literature find...

Empirical and factorial methods are currently used to estimate nutrient requirements for domestic animals. The purpose of this study was to estimate the nutrient requirements of a given pig population using the empirical and factorial methods; to establish the relationship between the requirements estimated with these two methods; and to study the limitations of the methods when used to determi...

This paper presents a method of economic factorial analysis of the CO2 emissions based on the extension of the Divisia index to interconnected factors. This approach, contrary to the Kaya identity, considers three main factors of the CO2 emissions: gross domestic product, energy consumption, and population as equally important, and allows for accounting of all of them simultaneously. The three ...

The aim of this paper is to carried out statistical analysis for optimization of various concrete mix proportions by using full factorial experimental technique. The variables such as 28 days cube compressive strength, water to cement ratio (w/c), coarse aggregate to total aggregate ratio (CA/TA) and total aggregate to cement ratio (TA/C) were the parameters to be used for optimization. Four w/...