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Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions
(Progress in Organic Coatings, 2013)
This work reports the preparation of PMMA/silica nanocomposites with high optical transparency and enhanced mechanical properties using a melt compounding method. The surface of SiO2 particles was modified with a ...
Generating a Type of Concave Cupolae of Fourth Sort
(Timişoara: Editura Politehnica, 2013)
The paper discusses the generation of a specific group of polyhedra, Concave Cupolae of Fourth Sort (CC IV) with regular polygonal bases, using constructive and analytical procedures. Beside determination of the parameters ...
Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information
(International Journal of Theoretical Physics, 2013)
In the quantum information theory operates with qubits and N-qubits that can be express through coherent states. Density operator admits a representation in terms of coherent states formalism. Consequently, in this paper ...
Tačnost modeliranja objekata tehnologijom terestričkog laserskog skeniranja / Accuracy of the objects modelling using terrestrial laser scanning technology
(Универзитет у Београду, Грађевински факултет, 2013)
Skorašnja unapređenja performansi sistema terestričkog laserskog skeniranja (TLS) itrend opadanja cene ukazuju na značajan potencijal ove tehnologije i u zahtevniminženjerskim zadacima. Pored činjenice da pojedini TLS ...
Geometry of twisted surfaces applied on horizontal communications in architecture / Geometrija spiralnih površi primenjena na horizontalne komunikacije u arhitekturi
(Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd, 2013)
Contemporary technologies and materials continuously challenge structural designers, as well as architects, to achieve unique applications of various geometric surfaces. Twisted structures are actual and numerous in building ...
On the properties of the concave antiprisms of second sort / O osobinama konkavnih antiprizmi druge vrste
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2013)
The paper examines geometrical, static and dynamic properties of the polyhedral structures obtained by folding and creasing the two-rowed segment of equilateral triangular net. Bases of these concave polyhedra are regular, ...
Mathematical Principles and Optimal Design Solutions to Compensation for the Pendulum Temperature Dilatation
(Acta Polytechnica Hungarica, 2013)
The paper analyzes the effects of pendulum temperature dilatation on the timepiece running and accounts for the basic mathematical principles that neutralization of these detrimental effects are based upon. Both preliminary ...
A computer verification of a conjecture about the Erdös-Mordell curve
(2013 21st Telecommunications Forum Telfor, TELFOR 2013 - Proceedings of Papers, 2013)
In this paper we consider Erdös-Mordell inequality and its extension in the plane of triangle to the Erdös-Mordell curve. Algebraic equation of this curve is derived, and using modern computer tools in mathematics, we ...
Generating Curves of Higher Order Using the Generalisation of Hügelschäffer’ Egg Curve construction
(Timişoara: Editura Politehnica, 2013)
The starting constructions is the well known ellipse construction using the concentric circles c1 and c2. By eccentricity of the center C2 for some value w, and for the preserved center of the transformation in the center ...
Konstruktivni postupci u prostornim transformacijama površi jednogranog eliptičkog hiperboloida / The Constructive procedures in the spatial transformations of the surface elliptical hyperboloid of one sheet
(Универзитет у Београду, Архитектонски факултет, 2013)
Једнограни елиптички хиперболоид (ЈЕХ) је најопштији случај површи двоструке закривљености, из породице правоизводних површи, која настаје клизањем једне трансверзале–генератрисе, дуж три директрисе – мимоилазне праве ...