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Now showing items 81-90 of 115
Comparing Tablets (touchscreen devices) and PCs in Preschool Education: Testing Spatial Relationship Using Geometric Symbols of Traffic Signs
(International Engineering and Technology Institute (IETI), 2018)
Touchscreen devices have dramatically increased the accessibility and usage of technology, causing escalating usage, especially by very young children. Although the effects of screen time have been shown to produce serious ...
Disk of univalence of the ratio of two analytic functions
(Taylor and Francis Group, 2015)
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 ...
Interactive change of lighting in the portrait images
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2019)
We are facing a number of applications for altering portrait photographs using the help of artificial intelligence. Apart from the entertainment purposes, modern computer technologies can also help us get dynamic effects ...
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 ...
Suitability Analysis of Hugelschaffer's Egg Curve Application in Architectural Structures’ Geometry
(Iasi: The Gheorghe Asachi Technical University of Iasi, 2011)
Researching the different types of plane curves with ovoid shape, it has been shown that there are some forms of egg-curves that may be useful for design in engineering, especially in architecture. Increase of energy ...
Solid Modeling and Motion Study of Chronometer Detent Escapement Mechanism
(Iasi: "Gheorghe Asachi" Technical University of Iasi, 2011)
Theory of clock, watch and chronometer escapements is important
and interesting part of theory of mechanisms and kinematics. Despite the fact that chronometer escapements are invented in past times, from the viewpoint of ...
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 ...
Geometrical and mechanical characteristics of deformed balance spring obtained by simulation study
(SAGE Publications Ltd, 2016)
This paper analyzes the geometrical and mechanical characteristics of balance springs, which have the most important influence on the oscillation rate of the balance wheel and, consequently, the most decisive effects on ...