In this paper, we study continuous Kakeya line and needle configurations, of both the oriented and unoriented varieties, in connected Lie groups and some associated homogenous spaces. These are the analogs of Kakeya line (needle) sets (subsets of Rn where it is possible to turn a line (respectively an interval of unit length) through all directions continuously, without repeating a “direction”....

[Context & motivation] Variability models, feature diagrams ahead, have become commonplace in software product line engineering as a means to document variability early in the lifecycle. Over the years though, their application span has been extended to aid stakeholders in the configuration of software products. [Question/problem] However, current feature-based configuration techniques hardly s...

in recent years, there has been a great concern about strategic supply chain management. the supply chain configuration approach is related to strategic management of material and information flows. most of suggested configurations in the part of strategic direction are based on environmental factors and structure-conduct-performance approach. exploring supply chain configuration with emphasis ...

A configuration (pq, nk) is a collection of p points and n straight lines in the Euclidean plane so that every point has q straight lines passing through it and every line has k points lying on it. A configuration is astral if it has precisely b q+1 2 c symmetry classes (transitivity classes) of lines and bk+1 2 c symmetry classes of points. An even astral configuration is an astral configurati...

The solar photovoltaic (PV) systems are facing serious problems due to unavoidable losses in their system, leads to more devation of output power from the input power level. This effect is known as a mismatch effect and is available in PV systems. Many losses are encountered in PV system and it is difficult to minimize such losses. In this paper, the influence of thermal effect on the solar PV ...