National Repository of Grey Literature 1,465 records found  1 - 10nextend  jump to record: Search took 0.05 seconds. 


Physical and mathematical modeling of effects of velopharyngeal insufficiency on acoustic characteristics of human vocal tract
Horáček, Jaromír ; Vampola, T. ; Veselý, Jan ; Růžička, P.
The effects of velopharyngeal insufficiency or clefting on acoustic frequency-modal characteristics of human supraglottal spaces are investigated for the Czech vowels /a/ and /u/. Finite element (FE) modelling is supported by experimental investigation using a physical model of the vocal and nasal tract fabricated by the rapid prototyping technique from the FE model.

Numerická simulace syntetizovaného proudu v klidném vzduchu
Trávníček, Zdeněk ; Hyhlík, Tomáš ; Maršík, František
The paper deals with the numerical solution of a synthetic jet flow discharging into quiescent air. The aim of the work is to contribute to the understanding of flow physics associated with zero net mass transfer control device and particularly to show the influence of the turbulence model on the CFD solution.


Nanotechnology as potential method for recycling of PET bottles
Kráčalík, Milan ; Mikešová, Jana ; Pospíšil, L. ; Fortelný, Ivan ; Šimoník, J.
Recycling of PET worldwide is not sufficient. This issue results from decreasing molecular weight due to thermal, mechanical and hydrolytic degradation during multiple processing of polymer. The viscosity (next processability) of material can be increased by preparation of nanocomposites (formation of physical network in the polymer/clay system). The improved processing and utility properties of recycled PET were analyzed by rheology, morphology and tensile tests.

Application of art therapy elements for students at high special school (practical)
Koubská, Patricie ; Valešová Malecová, Barbara (advisor) ; Šiška, Jan (referee)
Application of art therapy elements for students at high special school (practical) The theme of this bachelor thesis is the use of art therapy procedure for pupils from practical two-year high school. The aim of this thesis is to consider the possibilities of using elements of group art therapy for the development of self-knowledge, communication, for strengthening of prosocial ties and increasing of a sense of group belonging. In the narrower sense, art therapy is underwood as a fine art therapy. Theoretical basis of the thesis will be the methods of art therapy, their possibilities and procedures, developmental aspects of maturing, specifics of maturing for pupils with handicaps (mental retardation issues, specific disorders of behavior problems of pupils with social and physical handicaps). In the practical part of the thesis there is described the use of these methods in my own art lessons.

Contactless measurement of surface temperatures in mechanical engineering
Anaxagorou, Georgios ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
his Diploma thesis deals with non-contact measurement of surface temperatures. Describes the basic physical principles by which individual instruments are designed, their technical parameters and compares the different types. It deals with the applications of this technology in various fields of human activity and especially its use in engineering.

Abstract Book URSI International Symposium Endogenous Physical Fields in Biology
Pokorný, Jiří
Book of Abstracts contains 65 abstracts of papers whose majority was presented at the symposium "Endogenous Physical Field in Biology" whose program was focused mainly on: a/ Generation of the endogenous electromagnetic filed by cellular and subcellular protein structures /e.g.microtubules/, b/ Biophysical problems of interaction of biological systems with exogenous electromagnetic fields. Some new methods used in photodynamic and hyperthermic therapy of malignant tumors are described too.

Fyzikální systém pro tvorbu her
Cséfalvay, Szabolcs ; Kronus, David (advisor) ; Holan, Tomáš (referee)
In the present work we ivestigate the functioning of a real-time physics engine. We also take a look at the problematics associated with the creation of such an engine, the methods that can be used to accelerate collision detection and increase the stability of the system. The current implementation of the engine can handle collisions between spheres and cylinders (without the top and the bottom), resting contact forces between objects, compound objects and springs.

Cutting performance of very fine grained end mills
Uttendorfský, Aleš ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
This diploma thesis consists of two parts. The theoretical part describes sintered carbides, their properties and manufacturing tools. Some selected problems of milling and its physical nature is discussed also. It also deals with the types and methods of tool wear testing. The aim is to compare the experimental properties of monolithic end milling cutters (short four cutting edges, uncoated carbides) of various grain sizes in two basic ways of milling - down-feed method and up-feed method. The measured values are evaluated by analysis in time series of the cutting forces and power.