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The Neolithic settlement area Hrdlovka: analysis of ceramic material
VONDROVSKÝ, Václav
The presented diploma thesis aims primarily to the analysis of ceramic material obtained from the Neolithic settlement area Hrdlovka excavated during salvage terrain excavation since the year 1987 to 1990. For the purposes of processing of finds and excavation situations the complex database and digitalised site plan were created in the GIS interface. The analysis of ceramics was targeted particularly to the establishing of settlement area relative chronology and separating of individual settlement phases. Current description system of Czech Neolithic pottery was modified and replenished with regard to Hrdlovka´s finding situation specifics. The process of chronological analysis comprising also spatial data was divided into several steps. Resulting sequence comprises 10 settlement horizons (Hrdlovka A - J), which correspond to nearly uninterrupted development since the early stage of the Linear Pottery culture to the late stage of the Stroked Pottery culture. Important pieces of knowledge were obtained mainly about the transitional phase between the both cultures, which was in Hrdlovka documented by two settlement horizons. The analysis of ceramics spatial distribution and some architecture characteristics are also presented in limited range.
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Determination of threshold values of components with protective layers
Náhlík, Luboš ; Bareš, Pavel
The contribution is focused on the influence of existing fatigue cracks in protective layers on fatigue life of structures with protective layers. The problem is solved under conditions of linear elastic fracture mechanics with help of finite element method. Is shown, that in the case of the hard protective layer on the ductile substrate represents existing crack with its tip on the bi-material interface dangerous singular stress concentrator, because of decrease of threshold values of applied loading necessary for crack propagation. Knowledge of crack propagation in protective film is of paramount importance when studying potential failure of the substrate.
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Stratefis in mathematical education
ŠTĚPÁNOVÁ, Lucie
The aim of this thesis was an analyse of individual didactic situations and their valuation based on selected strategies. There was used video material from 20 lessons on linear equation collected from one basic and one grammar school. The conclusion of the analysis is supported by theories from available sources. This thesis might be useful for students of pedagogical faculties to deepen their knowledge and to help them avoid possible mistakes. It might be used also as a self-study material for teachers.
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Stochastická teorie katastrof
Vošvrda, Miloslav ; Voříšek, Jan
The so called Cusp deterministic catastrophe model extends the classical linear regression adding nonlinearity into a model. A property of a stochatic catastrophe model connected with stochastic differential equation could be described by density, which is known in closed-form only in stationary case. The approximation of the transition density is done here by finite difference metod.
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Using Artificial Neural Networks to Study Non-Linear Properties of Single Neurons in the Auditory Cortex
Hromádka, Tomáš ; Kůrková, Věra (advisor) ; Maršálek, Petr (referee)
Neurony v naších mozcích převádějí informace o okolním světě do elektrických akčních potenciálů. Klíčem k pochopení funkce neuronů, a poté neuronových sítí a mozku, je vědět, které části okolního světa jsou zastoupeny v aktivitě neuronů, a jakým způsobem je tato informace kódována. Tradiční metodou zkoumání funkce neuronu je zaznamenání odpovědi neuronu na podněty různé složitosti a následně snaha vysvětlit přenosovou funkci neuronu pomocí lineárního modelu. Většina neuronů však obsahuje nelineární přenosovou funkci. V této práci jsme použili umělé neuronové sítě ke studiu nelineárních přenosových funkcí neuronů sluchové kůry. Zaznamenali jsme podprahovou aktivitu neuronů jako odpověď na stimulaci přirozenými zvuky a poté jsme použili neuronové sítě v roli nelineárních aproximátorů k odhadu přenosových funkcí neuronů. Umělé neuronové sítě úspěšně aproximovali přenosové funkce a v průměru odhadli funkce neuronů nejméně stejně dobře jako lineární modely. Powered by TCPDF (www.tcpdf.org)
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Metody s proměnnou metrikou s omezenou pamětí, založené na invariantních maticích
Vlček, Jan ; Lukšan, Ladislav
A new class of limited-memory variable metric methods for unconstrained minimization is described. Approximations of inverses of Hessian matrices are based on matrices which are invariant with respect to a linear transformation. As these matrices are singular, they are adjusted for a computation of direction vectors. The methods have the quadratic termination property, which means that they will find a minimum of a strict quadratic function with an exact choice of a step-length after a finite number of steps. Numerical experiments show the efficiency of this method.
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The Bankruptcy Rules in Linear Ordered Structures
Muchna, Jan ; Pánková, Václava (advisor) ; Černý, Michal (referee)
The bankruptcy problem involves the distribution of perfectly divisible goods. Particular attention is paid to the situations, where the amount of goods available is not enough to cover the demand. An example of real life situations that can be solved using various bankruptcy rules may be a division of a heritage or when a company goes bankrupt and its estates are sold to satisfy interested parties' claims. This paper introduces to the problem a linear structure of the participants, meaning that participants are now satisfied one after another in a preset order. It applies the equal awards (CEA) and the equal losses (CEL) solutions on the revised problem. Since their axiomatization is no longer valid, both solutions are extended and new characterizations are given in the thesis. The thesis contains a series of original proofs for both extended solutions and whole problem is examined in the setting of the well-known river sharing problem.
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