Dissertations / Theses on the topic 'Analýza keramiky'

This diploma thesis deals with probability of fracture ceramic head of total hip endoprosthesis during tests by the standard ISO 7206-5. In the first part is made stress analysis with method of finite elements in program ANSYS. Six types of ceramic head with different geometry was analysed for ideal geometry of head and shaft, and also for shape imperfections from nominal conical shaft and head. The final values of principal stress from stress analysis were entry values for the second part – probability of fracture analysis. Weibull weakest-link theory was applied, namely 3-Parameter and 2-Parameter Weibull distribution.

Synthesis and bulk analysis of composite ceramic oxide materials and materials with perovskite-defect structure is presented within this work. Syntheses of these advanced ceramics materials were carroed out by using of nonconventional techniques (microwave-assisted hydrothermal synthesis and polycondensation techniques) and by conventional mechanochemical activation followed by high temperature solid state reaction. X-Ray difraction (XRD), Rietveld analysis, scaning microscopy (SEM), microalysis EDS-SEM, thermal analysis (TG), infrared spectroscopy (IR), determination of particles size and specific surface area were used for description of synthesized products. In case of perovskite system based on La-Sr-Fe-Ti-O electrochemical properties were studied. Part of work was focused on chemical analysis of synthesized composite oxide materials and decomposition hard structured products by using of nonconventional fields.

This diploma thesis is concerned with the stress analysis of the total hip joint endoprosthesis ceramic head under oblique loading. Load was obtain from experimental in vivo measurement on three patients, whereas two of them was the same weight. As input variables were use contact forces, especially knee bend and standing on one leg. Furthermore they will be considered shape deflections from ideal cone, especially circle deviation, cone deviation and cone plus circle deviation together.

The aim of this thesis is to evaluate enterprise ESTCOM CZ oxide ceramics Inc. for the purpose of sale to the general candidates on the market. The goal is to find the market value on December 31, 2014. The first part is theoretical and it summarizes the currently valid theoretical knowledge of recognized experts. T he second part is the practical part. It consists of financial and strategic analysis, followed by a chapter of value drivers and a financial plan. The financial plan was drawn up for the years 2015 2019. At the end of the thesis is company valued using discounted cash flow method discounted cash flow method and the capitalized earnings method.

The aim of this work is to analyse axisymetric tasks by norm ISO 7206-5, which is used to determination of static strength of ceramic heads. In the numeric analysis there will be considered form variances from nominal conicalness and circularity of stem sections i.e. possible variances caused by production. Furthermore form changes of recess inside of the head measured on real samples will be considered. All these variances from nominal values are necessary to analyse in more details, because they can participate in destruction of ceramic heads. The stem system, ceramic head and load cone (DHK) will be simulated as a 2D axisymetric task and 3D quarter symetrical task. That is why is necessary to undertake also comparing analysis of 2D and 3D tasks and compare results or eventually evaluate the error. This problem is solved using of Finite element System ANSYS 11.0.

The thesis deals with computational modelling of ceramic foams and analysis of influence of structural manufacturing defects (like broken struts, closed pores and material clumps) have on foam strength. Model of foam geometry was discretized using beam elements in order to decrease computational cost. In place where several struct join, rigid beam element was used so that the increased stiffness is better modelled. Closed walls of pores were modelled and discretised by shell elements. Influence of loading direction was analysed on foams containing no defects and then influence of amount of defects in foam on strength was further analysed. Highest strength show foams created by cells whose structs are oriented in direction of loading. These were losing strength most rapidly. Foam with structure of rhombic dodecahedral cell was least influenced by presence of closed pore defects but it also showed lowest strength even without defects. Cells with struts oriented in direction of loading experienced biggest drop in strength. Kelvin cell is a compromise. It was shown that difference in strength of strut with constant and varying cross-section is tenths of percent.

The thesis named Analysis of Czech export development in chosen field - glass industry, jewellery glass describes a development of glass and ceramics industry in Czech lands and in the Czech Republic. The aim of the thesis is to analyze export development of glass and ceramics products, mainly in the 21st century. Conclusions are based on data of Harmonized System from the Czech Statistical Office. It is clear that the importance of export of glass, jewellery and ceramics is not as high as it used to be before WWII, however, the value of export increased in 2010. The future of the Czech glass-work is represented by orientation to technologically sophisticated products which cannot be easily produced on the cheap Asian markets.

Modern analog systems processing signals with very small amplitude are prone to distortion, which is caused by leakage between signal traces. Causation of this is contamination of insulating gap, which insulates these traces. Goal of this thesis is to design and manufacturing of test structure, which allows classification of influence of contamination on substrate on leakage, and another goal is classification of technologiacal processes in light of contamination of substrate with electroactive inpurities. Based on results of this experiments are defined rules leading to optimizing of properties of manufactured structures. Attention is applied to ceramic substrates with conductive traces which are created with thick film technology.

Mano magistrinio darbo tikslas – išanalizuoti AB „Dvarčionių keramika“ aplinkosauginę būklę ir aplinkosaugos vadybos sistemas bei auditą. Darbo uždaviniai: 1. Išanalizuoti literatūrą aplinkosaugos vadybos ir audito tema. 2. Surinkti ir apžvelgti duomenis apie AB „Dvarčionių keramika“ veiklą. 3. Įvertinti AB „Dvarčionių keramika“ aplinkosauginę būklę (daromą poveikį atmosferai, vandeniui, dirvožemiui, triukšmo). 4. Išnagrinėti gamybinio proceso metu susidarančių atliekų tvarkymą. 5. Apžvelgti AB „Dvarčionių keramika“ aplinkos apsaugos vadybos sistemų taikymo efektyvumą įmonėje. 6. Išnagrinėti aplinkos apsaugos audito taikymo efektyvumą įmonėje. Iškeltiems uždaviniams buvo atliktos šios išvados: 1. AB „Dvarčionių keramika“ įdiegta aplinkos apsaugos vadybos sistema skatina įmonę įgyvendinti gamtos išteklių taupymo ir atliekų mažinimo galimybes. 2. Didžiausia bei moderniausia keraminių plytelių gamintoja Baltijos šalyse pagal gaminamos produkcijos kokybę, pažangias technologijas, įdiegtą šiuolaikišką keraminių plytelių bandymo laboratoriją atitinka Europos standartų keliamus reikalavimus. 3. AB „Dvarčionių keramika“ turi labiau sumažinti iš technologinių įrenginių išmetamų teršalų kiekį produkcijos vienetui, efektyviau išnaudojant įrengimų našumą. 4. Gamybos proceso metu susidarančios atliekos tvarkomos prisilaikant atliekų tvarkymo taisyklėse iškeltų reikalavimų. 5. AB „Dvarčionių keramika“ esanti aplinkos apsaugos vadybos sistema atitinka tarptautinio standarto ISO 14001... [toliau žr. visą tekstą]
AUSRA PAKALKAITE THE ANALYSIS OF ENVIRONMENT PROTECTION STATE, ENVIRONMENT PROTECTION MANAGEMENT SYSTEMS AND AUDIT THAT WAS PERFORMED IN A JOINT-STOCK COMPANY “DVARCIONIU KERAMIKA” The aim of my Master thesis is to analyze the environment protection state, environment protection management systems and audit in a joint-stock company “Dvarcioniu keramika”. The tasks of the work: 1. To analyze the literature about the management of environment protection and audit. 2. To collect and review data about the activities of “Dvarcioniu keramika”. 3. To evaluate the environment protection state of “Dvarcioniu keramika” (how it influences atmosphere, water, soil, and its noise). 4. To analyze the treatment of waste that is gathered during the manufacturing. 5. To overview the effectiveness of application of environment protection management systems in “Dvarcioniu keramika”. 6. To analyze the effectiveness of environment protection audit application in the company. Conclusions that were made from the previous tasks: 1. The environment protection management system of “Dvarcioniu keramika” impels the company to realize the opportunities of saving resources and reducing waste. 2. According to the quality of production, innovative technologies, and modern laboratory of ceramic tiles testing, the biggest and modern producer of ceramic tiles in the Baltic countries satisfies the requirement of European standards. 3. “Dvarcioniu keramika” has to reduce the waste amount for a production unit and... [to full text]

Tato diplomová práce se zabývá numerickou simulací B3B zkoušky. Byla provedena rešerše v souvisejících oblastech. Poté byly provedeny numerické simulace této zkoušky pro mnoho různých konfigurací (rovný, zakřivený a zakřivený vrstvený vzorek) pro disk a desku. Byla zjištěna hyperbolická závislost mezi tloušťkou a f faktorem. Závislost f faktoru na křivosti byla lineární. Byla provedena demonstrace možnosti prasknutí na rozhraní vrstev. Poslední část ukázala, jak by zanedbání vlivu zbytkového napětí mohlo vést ke špatnému vyhodnocování experimentů

V současnosti je velmi aktuálním tématem generování elektrické energie z alternativních zdrojů, zejména z vibrací. Zařízení, která přeměňují mechanickou energii na elektrickou, využívají často ke své činnosti piezoelektrický jev. Pro optimální nastavení takového elektromechanického měniče pro danou aplikaci je třeba mít k dispozici výpočtový model, který bude schopný postihnout všechny klíčové aspekty jeho provozu. Tato práce se tedy zabývá vytvořením takovéhoto nástroje, který je schopen komplexně popsat elektromechanickou odezvu studovaného piezoelektrického měniče energie v podobě vetknutého, vícevrstvého keramického nosníku s piezoelektrickými vrstvami. Uvažovaná vícevrstvá konstrukce je během své činnosti vystavena kinematickému buzení a je rovněž zatížena tepelnou zbytkovou napjatostí vznikající při její výrobě. Vytvořený výpočtový model využívá klasickou laminátovou teorii k určení statické elektromechanické odezvy dané konstrukce. Elektromechanická odezva při kmitání uvažované konstrukce v ustáleném stavu je získána s využitím Hamiltonova variačního principu a teorie kmitání prutů. Vytvořený výpočtový model je dále schopen odhadnout zdánlivou lomovou houževnatost dané vícevrstvé konstrukce pomocí metody váhových funkcí. Výstupy vytvořeného výpočtového modelu jsou ověřeny s využitím numerických simulací na bázi MKP a dostupných experimentálních výsledků. V diplomové práci je následně vytvořený výpočtový model aplikován při hledání optimálního rozložení jednotlivých vrstev konkrétního vícevrstvého nosníku s cílem maximalizovat jeho elektrický výkon a odolnost vůči šíření povrchových trhlin, resp. vzniku křehkého lomu. Tohoto cíle je dosaženo pomocí vhodného rozložení tepelných zbytkových napětí v jednotlivých vrstvách uvažované konstrukce (řízeného použitými materiály a tloušťkami jednotlivých vrstev).

The elemental composition of the samples of modern and archaeological ceramics was determined using the energy dispersive X-ray analysis, flame atomic absorption spectrometry, titrimetric and spectrophotometric analysis methods. It has been shown that the qualitative and quantitative composition of all the samples is different. It has been established that silicon and aluminium are the main elements in all the samples. SiO2 accounts for 46–60 % of the composition of the ceramics, Al2O3 – for some 17–33%. The amounts of Fe, Na, Mg, K, Ca and Ti discovered in the samples are several times lesser. EDX analysis can successfully be used in determining the main elements whose amounts exceed 0.5% of the overall elemental composition. In order to determine the exact composition of ceramics one has to employ the FAAS analysis method. To determine in a credible manner the amount of aluminium in ceramics, one can use the titrimetric method, and the amount of silicon and titanium – spectrophotometric methods. Upon examination of the modern and archaeological ceramics by diffraction analysis it has been established that the main phase of all the samples is the same – quartz SiO2, however their phase composition varies. In different samples the following phases have been discovered: calcite, dolomite, kaolinite, albite, microcline, muscovite, mullite, hematite, rutile, diopside, corundum, titanite, and sodium anorthite. Being aware of the phase composition, it has been established that the... [to full text]
Šioje daktaro disertacijoje pirmoje dalyje nustatyta šiuolaikinės, o antroje dalyje – archeologinės keramikos gaminių elementinė ir fazinė sudėtis, bei ištirta morfologija. Šiuolaikinės ir archeologinės keramikos pavyzdžių elementinė sudėtis nustatyta Rentgeno spindulių dispersinės analizės (EDX), liepsnos atominės absorbcinės spektrometrijos (LAAS), titrimetrinės ir spektrofotometrinės analizės metodais. Parodyta, kad visų keraminių pavyzdžių kokybinė bei kiekybinė sudėtis yra skirtinga Nustatyta, kad visuose keramikos mėginiuose pagrindiniai elementai yra silicis ir aliuminis. SiO2 sudaro 46 – 60% keramikos sudėties, Al2O3 – apie 17 – 33%. Fe, Na, Mg, K, Ca ir Ti mėginiuose rasta kelis kartus mažiau. EDX analizė gali būti sėkmingai naudojama nustatant pagrindinius elementus, kurių kiekiai viršija 0,5 % bendros elementinės sudėties. Norint nustatyti tikslią keramikos sudėtį ir pėdsakinius elementus reikia naudoti LAAS analizės metodą. Aliuminio kiekį keramikoje patikimai galima nustatyti titrimetriniu, o silicio ir titano kiekį – spektrofotometriniais metodais. Ištyrus šiuolaikę ir archeologinę keramiką Rentgeno spindulių difrakcine analize (XRD), nustatyta, kad visų keramikų pagrindinė fazė yra vienoda – silicio dioksidas SiO2, tačiau jų bendra fazinė sudėtis skiriasi. Skirtinguose kermikos pavyzdžiuose buvo aptikos šios fazės: kvarcas, dolomitas, kaolinas, albitas, mikroklinas, muskovitas, mulitas, hematitas, rutilas, diopsidas, korundas, titanitas, natrio anortitas... [toliau žr. visą tekstą]

Advanced ceramics have long held the front of the list of promising materials for high-tech applications. The most common problem is the high cost of design, production and machining of advanced ceramics parts. The main sense of advanced ceramics processing techniques development is affordable, high-volume production. The dissertation is focused on SiC silicon carbide grinding. SiC is used in the design of machine parts due to its excellent properties The deep knowledge of the diamond wheel grinding process is important because it is one of the finishing methods and therefore has a direct impact on the quality and strength of the SiC parts. The key issue here is the overall surface quality of the parts after diamond wheel grinding and the knowledge of the factors that influence the surface quality. These include, in particular, grinding vibrations. The main purpose of the thesis is to create a system of specific scientific and technical information, which will allow applying optimal technological procedures in the processing of ceramic components. The theoretical part of the thesis contains an analysis of the current state of the art in the advanced ceramics machining area, detailed analysis of the ceramics grinding with diamond grinding wheels, signal analysis theory and analysis of surface quality assessment methods. The experimental part contains analysis and discussion of the results obtained during the monitoring of the silicon carbide grinding process with a diamond grinding wheel. Various diagnostic methods have confirmed the presence of vibrations at a frequency close to the speed frequency of the grinding wheel, which had a significant, negative effect on the samples surface quality. Vibration diagnostics has identified a specific source of vibration (clamping of the workpiece) and it has been removed subsequently.

Thesis deals with determination of layerwise mechanical properties of composite ceramics by indirect method, namely Youngs modulus. Based on literature review, it was found that a method to determine elastic properties of one or more components of multi layered composites based on experimental modal analysis and finite element modal analysis, or analytical approach exists. Method based on FE modal analysis was applied to ceramic laminate, where it was attempt to determine youngs modulus of one component. Beyond that, it was attempt to determine Youngs moduli of both components using first two bending resonant frequencies. Results were unsatisfying. Sensitivity analysis showed that layers with unknown Youngs modulus were overly sensitive to small changes in input parameters due to their small relative thickness with respect to thickness of laminate and due to location in laminate. Based on this conclusion, recommendations were made with respect to suitable geometry of test specimens.

This thesis aims to evaluate the company XY s.r.o. to the date of 31 December 2014 and to assess its financial health and perspectives. The theoretical part is devoted to a brief description of pledge of business share from the perspective of the bank with its advantages and risks. The practical part or the actual valuation is divided into classic chapters. The introduction presents the valuated company with a consistent description of their products. Another chapter is devoted to strategic analysis, which evaluates future outlook of the company. In the financial analysis, the individual balance sheet items are decribed and their development in time is monitored. Individual valuation is performed using the capitalized earnings method and is additionally supported by the incomplete substantial method and market multipliers.

Abstract This study is a re-analysis of the material from the wetland settlement of Sārnate, excavated between 1938 and 1959 by Eduards Šturms and Lūcija Vankina. The site, dated to the Neolithic of the East Baltic, is located on a former lakeshore in the littoral belt of the Kurzeme Peninsula, western Latvia. First, the many separate dwelling assemblages of material were arranged into three major groups on the basis of their pottery: dwellings with Comb Ware (undated), dwellings with Early Sārnate Ware (c. 4365–3780 kal ekr.) and dwellings with Late Sārnate Ware (c. 3630–2850 kal ekr.). The Comb Ware from Sārnate represents a heterogeneous and poorly-preserved corpus. Early and Late Sārnate Ware are seen as belonging to a tradition of shell-tempered, low-fired vessels that served mainly as cooking pots. Ceramic bowls, represented in Late Sārnate Ware, are interpreted as fat-burning lamps. The dwellings with Early and Late Sārnate Ware have produced a range of net fishing gear, as well as components of eel clamps and fish-screens. The houses of the Early and Late Sārnate Ware groups were quite substantial post-built structures, but not true pile dwellings. The hearths consisted of a bed of sand, with a substructure of timber and bark. Experimental work suggests that food was cooked by standing the pointed base of the pot in the sand of the hearth and building up the fire around it. Spatial analysis of the structural remains and artefact distributions in the best-preserved dwellings with Late Sārnate Ware, aligned with their long axes perpendicular to the former shoreline, revealed the concentration at one end of the hearth of tools and refuse connected with activities relating mainly to food processing, i.e. a ‘kitchen area’. For the Early and Late Sārnate phases, we can reconstruct the basic settlement-subsistence pattern, characterised by utilisation of a diverse range of subsistence resources, mainly those of the eutrophic lagoonal lakes, and a semi-sedentary or sedentary pattern of life, with a permanent occupation at Sārnate. A similar mode of subsistence and settlement was probably practiced at other lagoonal lakes along the East Baltic coast
Tiivistelmä Tutkimuksessa analysoidaan uudelleen Eduard Sturmsin ja Lucija Vankinan vuosina 1938–1959 kaivaman Sarnaten suoasuinpaikan materiaali. Itä-Baltian neolitikumiin ajoittuva asuinpaikka sijaitsee muinaisen järven rannalla Kurzemen niemen rantavyöhykkeellä Latvian länsiosassa. Useista erillisistä asumuksista kerätty materiaali järjestettiin kolmeen pääryhmään niissä esiintyvän keramiikan perusteella: asumukset joissa esiintyi kampakeramiikkaa (ajoittamatonta), asumukset joissa oli varhaista Sarnaten keramiikkaa (n. 4365 –3780 kal ekr.) ja asumukset joissa oli myöhäistä Sarnaten keramiikkaa (n. 3630 –2850 kal ekr.). Sarnaten kampakeramiikka on heterogeenistä ja huonosti säilynyttä. Varhaisen ja myöhäisen Sarnaten keramiikan arvioidaan kuuluvan simpukankuorisekoitteisten, matalapolttoisten astioiden traditioon. Näitä astioita käytettiin etupäässä keittoastioina. Myöhäisen Sarnate-keramiikan keramiikkakulhot on tulkittu rasvaa polttaviksi lampuiksi. Varhaisen ja myöhäisen Sarnate-keramiikan asuinpaikoilta on löydetty kalastusverkkoja sekä ankeriaankalastusvälineen ja liistekatiskan osia. Varhaisen ja myöhäisen Sarnate-keramiikan piiriin kuuluvat talot olivat melko kookkaita paaluille pystytettyjä rakennelmia, mutta eivät varsinaisia paaluasumuksia. Liedet muodostuivat hiekkakerroksesta, jossa oli puusta ja kaarnasta tehty rakennelma. Kokeiden perusteella arvellaan, että ruoka valmistettiin asettamalla astian terävä pohja lieden hiekka-alustalle ja polttamalla tulta astian ympärillä. Parhaiten säilyneiden myöhäistä Sarnate-keramiikkaa edustavien, pitkä akseli kohtisuorassa muinaiseen rantaviivaan nähden olevien asumusten rakenteiden ja esineiden spatiaalinen analyysi paljasti etupäässä ruuan valmistamiseen liittyviin toimintoihin yhdistettävien työkalujen ja jätteiden keskittyvän lieden toiseen päähän, toisin sanoen ”keittiöön ”. Varhaiselle ja myöhäiselle Sarnate-vaiheelle voidaan rekonstruoida asutus- ja elinkeinomalli, jolle on ominaista erilaisten, pääasiassa eutrofisten laguunien, toimeentuloresurssien hyväksikäyttö sekä puolipysyvä tai pysyvä elintapa Sarnaten ollessa jatkuvasti asutettu. Samankaltaisia elinkeinoja ja asutusta harjoitettiin todennäköisesti muillakin laguuneilla Itä-Baltian rannikolla
Kopsavilkums Darbā no jauna izanalizēts materiāls, kas iegūts starp 1938. un 1959. gadu Eduarda Šturma un Lūcijas Vankinas vadītajos izrakumos Sārnates mitrzemes apmetnē. Apmetne attiecināma uz Austrumbaltijas neolīta laiku. Tā atrodas Rietumlatvijā, Kurzemes pussalas piejūras joslā, senezera krastā. Kolekciju veido materiāls no daudzām atseviškuras vispirms apvienotas trijās galvenajās grupās, vadoties pēc keramikas rakstura: mītnes ar ķemmes un bedrīšu keramiku (nav datētas), mītnes ar agro Sārnates tipa keramiku (ap 4365–3780 kal. g. pr. Kr.) un mītnes ar vēlo Sārnates tipa keramiku (ap 3630–2850 kal. g. pr. Kr.). Sārnates apmetnē iegūtā ķemmes un bedrīšu keramika ir neviendabīga, turklāt slikti saglabājusies. Savukārt agrā un vēlā Sārnates tipa keramika pieskaitāma keramikas tradīcijai, kuras raksturīgās iezīmes ir māla masas liesināšana ar gliemežvākiem un apdedzināšana zemā temperatūrā. Māla trauki izmantoti galvenokārt vārīšanai. Māla bļodiņas, kas pārstāvētas vēlajā Sārnates tipa keramikā, uzskatāmas par tauku lampiņām. Mītnēs ar agro un vēlo Sārnates tipa keramiku iegūti dažāda veida zvejas tīklu piederumi, kā arī zušu žebērkļu un zvejas aizsprostu sastāvdaļas. Agrās un vēlās Sārnates tipa keramikas darinātāji cēluši samērā fundamentālas konstrukcijas stabu celtnes. Nav pamata tās uzskatīt par pāļu būvēm. Mītnēm raksturīgi smilšu pavardi, kuru pamatā ir koku un mizu konstrukcija. Pēc arheoloģisko eksperimentu rezultātiem secināts, ka vārāmo trauku nedaudz iedziļināja pavarda smiltīs un uguni kūra ap to. Pievēršot uzmanību mītnēm ar vislabāk saglabājušos materiālu, kas orientētas ar garenasi perpendikulāri senajai krasta līnijai, analizēta konstruktīvo palieku un senlietu planigrāfija. Šīm mītnēm vienā pavarda galā konstatēta galvenokārt ar pārtikas gatavošanu saistītu rīku un atkritumu koncentrācija (t.s. virtuves zona). No mītnēm ar agro un vēlo Sārnates keramiku iegūtais materiāls ļauj pamatvilcienos rekonstruēt iedzīvotāju saimniecību. Izmantota daudzveidīga pārtikas resursu bāze, bet īpaši nozīmīgi bijuši resursi, kas iegūstami no eitrofajiem lagūnu ezeriem. Sārnates apmetne bijusi apdzīvota cauru gadu, tās iedzīvotāji piekopuši daļēju vai pilnīgu vietsēdību. Līdzīgs dzīvesveids, domājams, bijis lagūnu ezeru krastos mītošām kopienām arī citviet Austrumbaltijas piekrastes joslā

The present thesis examines two ceramic assemblages from the villa baths at Pollena Trocchia, Italy. The private bath complex was likely part of the Roman villa built at the beginning of the 2nd century AD and buried under the volcanoclastic debris of the AD 472 eruption which provided an important terminus ante quem. The previous studies demonstrated that in the 5th century AD the bath complex became a pottery dump and cemetery. Nevertheless, a different picture was drawn from the excavation of the underground cistern in the north-western part of the baths. In order to better understand the purpose of the cistern prior to the eruption, which sealed most of the site, the pottery assemblage from the cistern was compared to the assemblage from one of the bathrooms identified as the laconicum. In fact, the cistern uncovered rather low number of individuals compared to the rest of the baths and the ratio of attested pottery classes was limited. While the African imports were almost absent, there was a great number of local products. Most of the shapes consisted of locally produced jugs of big volume, which could be associated with the water-supply system. When possible, the individuals were dated to the second half of the 5th century. Therefore, it is likely that the cistern was still in use a long...

The aim of this thesis is to analyze the early medieval pottery found at the hillfort Na Jánu acropolis. The pottery assemblage originates from trenchs S2/2000, S3/2003, S4/2003, S5/2003, S4/2001, S5/2001 end S16/2013. I analyzed functional, technological and decorative features of the pottery and, based on these results, created relative chronology of the entire sample.

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.

This presented thesis summarises findings from a rescue excavation at the site Čelákovice - "V Rybníčkách" (dist. Prague - East), with an emphasis on the trans-regional contact in the form of the Bavarian Jurrasic chert. The field research has been conducted by Municipal Museum in Čelákovice in summer 2011 due to the construction of a trade centre by the firm Tesco. In the area of 1,4 ha was uncovered a total of 86 features belonging to the stroked pottery culture (StK). Features were mostly constituted of longhouse postholes, further bigger pits and loam pits. They contained more than 6000 ceramic fragments mostly of cauldron- and beaker- shaped vessels, dated on the basis of ornamentation to the younger phase StK IVa. There was also found a large number of chipped and polished industry (450 and 456 artefacts), concentrated mainly in three sunken features interpreted as workshops. Production activity is proven beside fragments of the blades and flakes also by different kinds of sandstone abraders as well as drilling cores. The most important raw material in the collection of chipped industry is represented by the silicite from glacigenic sediments (48 %) and Bavarian Jurrasic chert (38 %). This chert was imported to the locality from about 250 km remote mining site at Arnhofen through the...

The presented master thesis places emphasis on processing of archeological excavation of settlement and graves with linear pottery culture. The excavation took place in 2003 - 2005 in Prague-Liboc "Šestákův statek". The thesis presents history of research of site and summarizes the results of rescue excavation. An integral part of this paper is the examination of ceramic inventory with linear pottery and evaluation of non-ceramic finds. An important step is analysis and interpretation of the objects and the evaluation of their spatial relationships and also the evaluation of the grave units. Key words: Praha, Neolithic, Linear pottery culture, Settlement, Graves

Black and red figured pottery is a captivating, while also a vast and demanding subject of research. For decades, vases were primarily studied as valuable art objects and scenes depicted on them considered as testimonies of ideas and lives of their creators and users. Many researchers focussed on interpreting the scenes captured on these vessels. When studying works by our research predecessors, it can be noted that their methods and conclusions were often influenced by the socio-cultural context in which they lived and worked. The aim of this thesis is not to create new, surprising interpretations of selected scenes or to point at erroneous interpretations of other researchers. The aim of this work is to draw attention to how contemporary society has influenced researchers and the methods they use and conclusions they draw when interpreting scenes considered for long periods as immutable, final and undisputable. While re-evaluating adopted conclusions I drew on gender studies and gender analysis which require a multidisciplinary approach to research and interpretation of vase paintings. In four subject areas I pointed out to what extent the dichotomies within which we are used to think and with which we work, i.e. dichotomies of masculine - feminine, public - private, exterior - interior, but also...

The aim of the work is to broaden the knowledge of historical bourgeois material culture in the centre of České Budějovice. The analysis focuses on pottery wares and other material obtained during the rescue archaeological excavation on the plot of house no. 23. The morphological as well as technological characteristics of the assemblage under study are observed and provide a better understanding of the evolution and transformation of the material culture of the medieval city.

The presented master thesis places emphasis on processing of archaeological excavation of the settlement with linear pottery culture. The excavation took place in May 2014 in Prague- Komořany "Na Poustkách." The thesis presents the history of research of the site and summarizes the process of the rescue excavation. An integral part of this paper is the examination of ceramic inventory with linear pottery and evaluation of non-ceramic finds. An important step is analysis and interpretation of the objects and the evaluation of their spatial relationships. In the last chapter, the site is placed in the context of the settlement with linear pottery culture within central Bohemia region. Lastly, a summary of results is presented. Key words: Central Bohemia, Neolithic, Linear Pottery Culture, Settlement

This thesis deals with Bell Beaker Culture at the end of the Eneolithic in two areas of its extension, in the Czech Republic and the Iberian Peninsula. We consider it as a one culture; however we can observe some differences mostly based on different domestic cultural background. Differences and similarities in manifestation of culture derived from an analysis of its various aspects in both areas such as settlement structure, funeral rite and material culture, of which the most characteristic are decorated Bell Beakers and archery equipment coming from the graves. This work is devoted to the characterization of Bell Beaker society and evolution of opinions on this phenomenon too.

This thesis is focused on research of the rondel (circular ditch) located in the Prague- -Ruzyně area, dated to Late Neolithic Era with the Stroked Pottery culture. Quantitative, qualitative and spatial analysis of rondel's object fillings were carried out and the results and interpretation are presented in this thesis. Particularly thanks to Stroke-ornamented pottery analysis, it was possible to determine the relative chronology of the ditches filling. The interpretation of the material analysis and material spatial distribution tried to describe the trends associated with the formative processes and the development of origin of the ditches fillings. This work brings the results of processing of archeological findings and field documentation of a fully explored rondel, situated in the settlement of the Stroked Pottery culture. This work contributes to the understanding of Late Neolithic settlement structure and the rondels in general. Catalogue of findings is included. KEY WORDS: Late Neolithic - Stroked Pottery culture - Circular ditch - spatial analysis - formation processes - pottery - lithics - daub - animal skeletal remains

Mgr. Václav Hrnčíř Mobility of individuals and populations in the prehistoric period. Confrontation of archaeological, ethnological and natural scientific methods. Abstract of dissertation thesis This thesis focuses on the use of natural scientific methods and cross-cultural research to study the mobility of individuals and populations in the prehistoric period and confronts these methods with the results of traditional archaeological approaches. In the first part, the advantages and limits of multiple-tooth strontium isotope analysis are critically assessed. Analysis of published strontium data of more than 1,000 individuals across the world reveals a high degree of variability in childhood mobility patterns between different regions and periods. In the second part, the association between post-marital residence and dwelling size is tested using phylogenetic comparative analysis methods and a global sample of 86 pre-industrial societies. The results confirm that large dwellings are associated with matrilocality (whereas smaller with patrilocality) and suggest that average dwelling size can be used as a material proxy for inferring post-marital residence rules in prehistoric societies. The last part of the thesis combines various types of evidence (archaeological, strontium and ethnographic) to determine...

Charles University in Prague, Faculty of arts Institute of Prehistory and Early History Lucia Žilincová SETTLEMENT OF BOHEMIAN PARADISE IN THE PERIOD OF LUSATIAN URN FIELDS Dissertation thesis Summary: The main aim of my dissertation thesis is to contribute to better understanding of the Bohemian Paradise settlement in the Lusatian urn fields period and its relation and contacts to the neighbouring areas. The basic source is archaeological material from seven cemeteries (Sovenice /bez. Mladá Boleslav/, Sovenice /bez. Nymburk/, Svijany, Svijanský Újezd, Koryta, Březina, Příšovice) and two settlements of the Lusatian culture (Turnov-Maškovy zahrady, Svijany). Its analysis is basis for enrichement knowledge of Lusatian material culture and its clue for completing of missing elements in chronological development. Inevitable part of this work is substitution of these localities to the Bomemian Paradise frame and classification in the wider space of this culture widespreading. On the base of acquired knowledge I will try to solve the question of possibility for comparation of the settlement and burial material of Lusatian culture. 2016