Economics of PET Bottles Chemical Recycling
This contrinution deals with economics of PET bottles chemical recycling.
Materials Literature
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Polyesteramide nanoparticles.
The aim of the work is focused on preparation method of nanoparticles by emulsion distribution and evaporation method. The objective was to obtain the smallest nanoparticles with the sufficiently high surface charge represented by zeta potential. Theoretical part of the presented thesis concerns biodegradable carriers…
PIC simulace pravoúhlých a seříznutých štěrbin ve zkušebním limiteru tokamaku TEXTOR
In this paper, we present results of Particle-In-Cell simulations of the plasma behavior in the vicinity of gaps in castellated plasma-facing components. We studied gaps in the test limiter of TEXTOR, which is a plasma-facing component designed for studies of impurity transport and fuel retention, mainly via hydrocarb…
Simulation of building statics
In the presented work we study methods of building statics analysis. The basis of this work is the statics analysis of truss structures. On this basis we build a program capable of simulating a 3D building loaded with its own weight and arbitrary forces acting on its elements. We will try to find a compromise between…
Methodical study of surface tension of epidermal lipids
The theoretical part brings a brief overview of selected relevant papers dealing with measurements of advancing and receding contact angles. These studies deal with the methods of determination of free surface energy, determination of contact angles, estimation of free equilibrium surface energy components, changes in…
Aging of the TiO2 colloidal particles in water: effect on their properties
The quantum sized titanium dioxide particles (Q-TiO2) could be prepared by hydrolysis of TiCl4, the final pH is 2.5 and particle size around 7 nm. From the environmental point of view very promissing seems to be the application of new composite materials combining layeres double hydroxides (LDH) and Q-TiO2 nanoparticl…
Výskyt uhlí v okolí Erigava (Republika Somailand)
The occurrence of Jurassic to Miocene coal in Republic Somaliland was described in literature. Some coal samples were collected in 2007 near Erigavo. On the base of palynological analysis the Jurassic age is suggested for examined coal. Content of ash of tested sample was 71,24% so that the sample is classified as a c…
Creeper
This bachelor project concerns with design solution of the creeper. Besides, the project specifies limitation of the chain gearings including various chain types. The project includes also the process calculation. Please find attached following design drawings General Arrangement, Sub- arrangements and Production Deta…
Characteristics of metakaoline modified mortars applied on historic objects
Samples of two lime-metakaoline plasters applied on historical walls in the Czech Republic a few years ago were investigated and analysed using optical and SE microscopy, EDS, XRD, and mercury porosimetry. Mechanical and other physical characteristics of small samples were also determined. Results and recommendation a…
Kalibrace konstitutivního modelu trabekulární kosti na základě nanoindentace
The paper deals with investigation of a trabecular bone behaviour during nanoindentation test. Behavior of trabecular bone is investigated using real nanoindentation and finite element simulation. Two different plasticity criteria for material model of trabeculae are tested, namely von Mises and Drucker-Prager. Von Mi…
Study of molecular dynamic behaviour in mixtures water/ethanol
In the diploma work we studied mixtures of water, ethanol and poly(vinyl methyl ether) (PVME) by the methods of Nuclear Magnetic Resonance (NMR) and Differential Scanning Calorimetry (DSC). NMR studies of water/ethanol binary mixtures between 10 - 90 vol.% of ethanol for wide temperature range comprised chemical shift…
Influence of stress concentrator geometry on fracture parameters values of quasi-brittle materials
To assess the reliability of building structures, values of fracture mechanical properties of their materials have to be known. In the case of cement-based composite types the basic parameters are ascertained on the basis of evaluation of the response of specimens conducted to a test in a suitable testing configuratio…
Magnetokalorický jev v Lu.sub.2./sub.Fe.sub.17./sub. a Y.sub.2./sub.Fe.sub.17./sub. za vysokých hydrostatických tlaků
Magneto-caloric effect of Lu2Fe17 and Y2Fe17 single crystals was measured at ambient pressure and under high hydrostatic pressure up to 1 GPa. Negative magneto-caloric effect was induced by high pressure in both the intermetallics in low-temperature range. Taking into consideration the first-order magnetic transition…
Optimization of preparation of microcompresion specimens from thin films films using focused ion beam
In this paper new method of mechanical properties measurement of thin films is presented. This method combines preparation of specimen using focused ion beam and compressive test by nanoindenter. This paper is focused on description of the preparation microcompressive specimens. The thin film Al – 1.5 wt. % Cu was stu…
Test method for self cleaning performance
The method for self cleaning performance is based on combination of both effects og photocatalytic function, which are ox/red reaction and surface hydrophilicity. When oleic acid, as organic material deposited on tested photocatalytic material is decomposed, surface is becoming hydrophilic.
Correlation between linear resistivity and Tc in the Bechgaard salts and the pnictide superconductor Ba(Fe1-xCox)2As2.
Udgivelsesdato: 28 dec.
Studie vhodného uspořádání magnetických obvodů pro realizaci magnetokalorického efektu
The paper is stimulated by one of very prospective physical do-mains – magnetic cooling based on the magnetocaloric effect. Successful realization of this effect requires a magnetic circuit with permanent magnets producing very strong and uniform magnetic field and the paper deals with arrangements of such circuits. I…
Particle Systems
The subject matter of this work is a concept and implementation of an extension of Particle Systems API. The extension provides a means by which it is possible to split a 3D model defined by its boundary representation into pieces with a geometric plane and render them using the particle system being extended. Because…
Influence of spectral properties of combined random loading on fatigue life
The contribution deals with an influence of power spectral densities of random loading processes on fatigue lives of structures. Experimental results of uniaxial loading are presented. A philosophy of multiaxial tests, which will be carried out in the new grant project, is also discussed. It is expected that a new num…
A comparison of insulative properties and financial costs between materials of organic origin and insulated sandwich panels
The topic of this publication is a comparison of insulated sandwich panels and materials of organic origin - wood based materials. There were compared insulative properties, lifetime and finacial costs of these materials.