In this paper, we present a heuristic for the Steiner problem in graphs (SPG) along with some experimental results. The heuristic is based on an approach similar to Prim’s algorithm for the minimum spanning tree. However, in this approach, arcs are associated with preference weights which are used to break ties among alternative choices of shortest paths occurring during the course of the algor...

This study compared the effect of alternative graphic or numeric vertical navigation (VNAV) aircraft cockpit displays on horizontal and vertical flight technical error (FTE), workload and subjective preference. Displays included: a) a moving map with altitude range arc, b) the same format, supplemented with a push-to-see profile view, including a vector flight-path predictor, c) an equivalent n...

In this work we present SAPVis, an interactive network visualization tool which helps SAP developers track dependency graphs in their network in order to guide testing and find inefficiencies within their system. By using an non-static arc diagram layout coupled with user manipulation tools (filter, sort, zoom, pan, and resize by attribute) we show how our visualization can help developers view...

sarygamesh basin one of the bulhary chay tributary take place in moghan plain, northeastern azarbyjan area in iran and south edge of kora- araz zone. aims of this research are study specificities and geomorphic evolution of sarygamesh basin, survey rivers work on structure and geologic formation, and corresponding hydrographic with earth structure. toward above aim is used to litologic, structu...

cabbage aphid (brevicoryne brassicae l.) is a important pest of canola (brassica napus l.) throughout the world, and as the host plant resistance is considered as a useful method to control the pest, therefore twenty one genotypes of canola were evaluated from the view point of their resistance to cabbage aphid infestation in a randomized complete block design with three replications and under ...

OBJECTIVE(S) The role of the Apoptosis repressor with caspase recruitment domain (ARC) in apoptosis and in certain hypertrophic responses has been previously investigated, but its regulation of Endothelin-1 induced cardiac hypertrophy remains unknown. The present study discusses the inhibitory role of ARC against endothelin-induced hypertrophy. RESULTS In present study Endothelin treated card...

The characteristics of a series direct current (DC) arc-fault including both electrical and thermal parameters were investigated based on an arc-fault simulator to provide references for multi-parameter electrical fire detection method. Tests on arc fault behavior with three different initial circuit voltages, resistances and arc gaps were conducted, respectively. The influences of circuit cond...

In 2 experiments, observers were required to identify corresponding points on an object viewed from multiple orientations. On each trial, a surface was presented initially with a single target location marked by a small dot. Following a brief blank interval, the same surface was presented again at a different orientation. The observer was required to position an adjustable probe dot in this 2nd...

Intersection graphs are very important in both theoretical as well as application point of view. Depending on the geometrical representation, different type of intersection graphs are defined. Among them interval, circular-arc, permutation, trapezoid, chordal, disk, circle graphs are more important. In this article, a brief introduction of each of these intersection graphs is given. Some basic ...

INTRODUCTION For MR applications such as contrast-enhanced MR angiography (CE-MRA), it is desirable to simultaneously achieve high spatial and temporal resolutions; however fully-sampled Cartesian acquisition of large matrices is time consuming. View sharing combined with parallel imaging (PI) improves temporal resolution [1], as does incoherent under-sampling with compressed sensing (CS) [2] o...