The Ba, Pb and Zn ore deposit Pleše near Ljubljana is one of the formerly productive mines. stream sediments were sampled analysed by XRF to establish effect grain size, mineralization, downstream location sampling sites on geochemical composition based various statistical analyses. Statistical analyses data confirm impact mineralization. parametric t-test, non-parametric Mann-Whitney test clus...

This research examined the impact and challenges of globalization on railway transport sector in Africa. The study employed two companies as sample, state-owned company private owned company. Using questionnaire instruments, data were collected analyzed with simple percentages non-parametric Kruskal-Wallis statistical tools. major findings that: (a) problem competition poor technology are great...

<p style="text-align:justify">Although Goodman–Kruskal gamma (G) is used relatively rarely it has promising potential as a coefficient of association in educational settings. Characteristics G are studied three sub-studies related to measurement appears be unexpectedly appealing an estimator between item and score because strictly indicates the probability get correct answer test given sc...

Understanding the spatial and temporal variation of nutrient concentrations, loads, and their distribution from upstream tributaries is important for the management of large lakes and reservoirs. The Three Gorges Dam was built on the Yangtze River in China, the world's third longest river, and impounded the famous Three Gorges Reservoir (TGR). In this study, we analyzed total nitrogen (TN) conc...

the basic type of assembly line balancing (alb) problem is the allocation of work elements to a set of production work stations considering cycle time, precedence constraints, and assembly diagram to achieve predefined performance criteria such as line efficiency and smoothness index. in this paper, a mixed integer programming model for solving multiple product alb problems with processing time...

introduction: the aim of the present study was to investigate and compare the apical sealing ability of resilon/epiphany-filled root canals with those that were obturated with gutta-percha/ah-plus endodontic sealer. materials and methods: a total of 60 extracted human single-rooted teeth were selected; 25 teeth for each test group and five for each control group. after conducting conventional e...

Originally, the Unruh effect is considered in the Minkowski spacetime. That is, for a uniformly accelerated observer in the Minkowski spacetime, there will be an event horizon, and the observer will detect radiation from it. In this paper, we extend the Unruh effect to the Kruskal spacetime. After defining some special null hypersurface in the Kruskal spacetime, we find that it can be considere...