This work is aimed on development of a standard procedure for measurement of different environmental objects using the EPC/GDV method. During investigation several destabilizing factors influencing the results of EPC/GDV measurements were found. These factors were analyzed and ways of overcoming them have been formulated. We have developed standard recommendations and a procedure for conducting...

Using a residuum approach, we provide complete description of the space rational spatial curves given tangent directions. The Pythagorean hodograph are obtained as special case when norm direction field is perfect square. basis for curve explicitly. Consequently number interpolation problems (G1, C1, C2, C1/G2) in this become linear, cusp avoidance can be encoded by linear inequalities, and opt...

A series of binary metal complexes (halo, hydroxyl and methoxy substituted bis(2-(E)acryloyl)naphthalen-1-yl)oxy)Cu(II) Zn(II) (C1? ?C10)) Cu2+ Zn2+ ions derived from bi-coordinated hydroxylated 1,3- -diaryl-2-propene-1-ones were synthesized. The newly synthesized structurally determined by FT-IR, 1H-NMR, 13C-NMR, ESR spectral, XRD TGA analyses. FT-IR studies demonstrated that interactions betw...

In this work we investigate the behavior of various geodesic convexity parameters with respect to the Cartesian product operation for graphs. First, we show that the convex sets arising from geodesic convexity in a Cartesian product of graphs are exactly the same as the convex sets arising from the usual binary operation ⊕ for making a convexity space out of the Cartesian product of any two con...

Nowadays, most process modelling tools implement popular modelling languages such as the Business Process Model and Notation (BPMN) or the Event-driven Process Chain (EPC). However, in contrast to BPMN, no effort has yet been undertaken to standardize the EPC language, thus rendering EPCs as being merely a de-facto standard for business process modelling. Subsequently, this paper addresses this...

In large-scale Internet of Things (IoT) applications, tags are attached to items, and users use a radiofrequency identification (RFID) reader quickly identify obtain the corresponding item information. Since multiple share same channel communicate with reader, when they respond simultaneously, tag collision will occur, cannot successfully information from tag. To cope problem, ultrahigh frequen...

We show how to combine, into one unified spline complex, C2 tensorproduct bi-cubic NURBS and G2 bi-cubic rational splines. The G2 splines are capable of exactly representing basic shapes such as (pieces of) quadrics and surfaces of revolution, including tori and cyclides. The main challenge is to bridge the differing continuity. We transform the G2 splines to splines that are C2 in homogeneous ...