NTIS - Nové technologie pro informační společnost / NTIS - New technologies for the Information Society


Recent Submissions

Stehlík, Petr , Švígler, Vladimír , Volek, Jonáš
Bifurcations in Nagumo Equations on Graphs and Fiedler Vectors

Reaction-diffusion equations serve as a basic framework for numerous dynamic phenomena like pattern formation and travelling waves. Spatially discrete analogues of Nagumo reaction-diffusion equation on lattices and graphs provide insights how these phenomena are strongly influenced by the discrete and...

Stehlík, Petr , Švígler, Vladimír , Volek, Jonáš
Source-sink dynamics on networks: Persistence and extinction

Dynamics of populations with logistic growth leads to global persistence on arbitrary networks, whereas bistable dynamics is always associated with local extinction. In this paper we study a reaction-diffusion model on networks with a combination of both logistic and bistable reactions. We&#...

Vu, Bich Ngoc , Lukeš, Vladimír , Stingl, Michael , Rohan, Eduard
A sequential global programming approach for two-scale optimization of homogenized multiphysics problems with application to Biot porous media

We present a new approach and an algorithm for solving two-scale material optimization problems to optimize the behaviour of a fluid-saturated porous medium in a given domain. While the state problem is governed by the Biot model describing the fluid–structure interaction in homogenized...

Vlček, Jaroslav , Kaufman, Michal , Pajdarová, Andrea Dagmar , Haviar, Stanislav , Čerstvý, Radomír , Houška, Jiří , Farahani, Mina
Detailed pathway for a fast low-temperature synthesis of strongly thermochromic W-doped VO2 films with a low transition temperature

We report the discharge characteristics, and population of chosen atomic neutral (V, O and Ar) and ionic (V+, V2+, O+, and Ar+) species in the discharge during low-temperature (350 °C) depositions of W-doped VOx films onto a 170 nm thick Y-stabilized ZrO2 layer on a 1...

Rajain, Kanika , Bizzarri, Michal , Lávička, Miroslav , Kosinka, Jiří , Bartoň, Michael
Towards G1-Continuous Multi-Strip Path-Planning for 5-Axis Flank CNC Machining of Free-Form Surfaces Using Conical Cutting Tools

Existing flank milling path-planning methods typically lead to tiny gaps or overlaps between neighbor-ing paths, which causes artifacts and imperfections in the workpiece. We propose a new multi-strip path-planning method for 5-axis flank milling of free-form surfaces which targets G1 (tangent-pl...