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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The Southern cemetery of Matrica, Százhalombatta-Dunafüred /

Topál, Judit. Johnson, Stephen, January 1981 (has links)
Diss. : Archaeology : Budapest : 1978. - Notes bibliogr. 103-105.
2

Elektrokardiogramos tyrimas naudojant koreliacinius sąryšius bei Henkelio matricas / Analysis of electrocardiogram using correlation and Hankel matrix

Patackaitė, Kristina 16 August 2007 (has links)
Pasinaudojant Henkelio matricomis tiriamas elektrokardiogramos ir jos parametrų kompleksiškumas. Po to, elektrokardiogramos fragmentai aprašomi eksponenčių baigtine sume. Taip pat pasiūlytas algoritmas, kaip pasinaudojant koreliacija dvylika standartinių derivacijų pakeisti trimis laisvai pasirenkamomis. / The method how to reinstate standard ECG lead by means of correlation and by three freely chosen ECG leads is suggested in this work. Next method is to evaluate complexity, to analyze, how many components are needed to record ECG and ECG parameters. Also we try to describe ECG fragment using exponential sum.
3

Primena uopštenih inverza u rešavanju fazi linearnih sistema / Application of generalized inversis on solving fuzzy linear szstems

Miler Jerković Vera 14 May 2018 (has links)
<p>Predmet izučavanja doktorske disertacije jeste postavljanje univerzalne metode za rešavanje fazi linearnih sistema primenom blokovske reprezentacije uopštenih inverza matrice. Pre svega, postavljen je potreban i dovoljan uslov za ekzistenciju rešanja fazi linearnog sistema. Zatim je data tačna algebarska forma rešenja i na kraju je predstavljen efikasan algoritam.</p> / <p>Thе subject of research of thesis is setting universal method for solving fuzzy linear systems using a block representation of generalized inversis of a matrix. A necessary and sufficienf condition for the existence solutions of fuzzy linear systems is given. The exact algebraic form of any solutiof fuzzy linear system is established.</p>
4

Elektrokardiogramos parametrų tyrimas / The Analysis of Complexity of Electrocardiogram Parameters

Šliupaitė, Asta 11 August 2008 (has links)
Medicinoje duomenys dažniausiai yra analizuojami statistiniais metodais. Tačiau šiame darbe elektrokardiogramos (EKG) parametrus tirsime naudodamiesi algebriniais metodais, nes į kiekvieno žmogaus organizmą žvelgiant kaip į sudėtingą ir unikalią kompleksinę sistemą, statistinio tyrimo nepakanka. Egzistuoja specialus algoritmas, leidžiantis funkciją , aprašytą Teiloro eilute arba jos reikšmėmis, išreikšti baigtine eksponenčių suma. Šio darbo tikslas – baigtine eksponenčių suma aproksimuoti EKG parametrų funkcijos dalis, kurios turi baigtinį kompleksiškumą, bei tirti parametrų kompleksiškumo pokyčius ilgame EKG įraše. / Medical data are often analysed using statistical methods. However the aim of this work is to analyse the complexity of some electrocardiogram (ECG) parameters using algebraic mathematical methods, because if we consider a human organism a complex and individual system, the former methods are not adequate. Mainly, we analyse two parameters of ECG: the complexity of R wave amplitude and duration between R waves. The method of Hankel matrices, in which functions of the finite h-rank are written as linear combinations of exponential functions, is used.
5

Judesio kiekio momento ryšio schemos grafo transformacija / Transformation of the angular momentum coupling graph

Samuolis, Andrius 15 June 2011 (has links)
Magistro darbo autorius: Andrius Samuolis Magistro darbo pavadinimas: Judesio kiekio momento ryšio schemos grafo transformacija Vadovas: doc. dr. A. Deveikis Darbas pristatytas: Vytauto Didžiojo Universitetas, Informatikos fakultetas, Kaunas, 2011 birželis. Puslapių skaičius: 46 Lentelių skaičius: 2 Paveikslų skaičius: 43 Priedų skaičius: 3 Sudaromas supaprastintas judesio kiekio momento grafinis metodas skirtas transformacijos matricų vaizdavimui ir supaprastinimui. Siūlomas metodas apibendrina Vilniaus teorinės fizikos mokyklos sukurto grafinio metodo praktinio taikymo patirtį ir apima tik daţniausiai taikomas jo taisykles. Transformacijos matrica supaprastinama suvedant jos pavidalą į 6j ir 9j koeficientus. Metodo taisyklės yra pakankamai paprastos ir gali būti naudojamos atitinkamų kompiuterinių įrankių kūrimui. / Author of Master Thesis: Andrius Samuolis Full title of Master Thesis: Transformation of the angular momentum coupling graph Supervisor: doc. dr. A. Deveikis Presented at: Vytautas Magnus University, Faculty of Informatics, Kaunas, June 2011. Number of pages: 46 Number of tables: 2 Number of pictures: 43 Number of appendices: 3 Establishes a simplified graphical angular momentum method, which is intended to represent and simplified transformation matrix. Suggest method summarizes graphic method practical experience and includes only the most common form of the rules, which were created by Vilnius school of Theoretical Physics. The transformation matrix is simplified when it’s shape is reduced to 6j and 9j coefficients. Principle rules are simple and can be used in the development of computer tools.
6

Socialinių tinklų analizės galimybės / Social network analysis

Mažutytė, Agnė 09 July 2011 (has links)
Informacijos amžiuje vis daugiau vyraujančių funkcijų ir procesų yra jungiami į tinklus. Socialiniai ryšiai tarp žmonių yra pakankamai platūs ir intensyvūs. Tinklai yra atviros struktūros, galinčios plėstis iki begalybės, įtraukdamos vis naujus mazgus, tik jie gali palaikyti tarpusavio ryšį tinkle. Tinklaveikinė socialinė struktūra yra labai dinamiška, atvira, pajėgi plėtoti naujoves, nerizikuodama netekti pusiausvyros. Įvairių krypčių bendruomenės sutaria, kad socialinis tinklas – tai žmonių socialinių santykių ar ryšių struktūra. Darbe aptariama tinklaveikos teorija sistemizuoja vykstančius saitus tarp veikėjų. Analizuojamas išteklių paskirstymo poveikis tinklui ir jo dalyviams. Atkreipamas dėmesys į tinklaveikos socialinę struktūrą nuo kurios priklauso individų elgesys, nuostatos, formuojančios galimybių srautą. Socialiniai ryšiai yra jungiamoji visuomenės dalis be kurių visuomenės egzistavimas tokia forma būtų neįmanomas. Negalima įsivaizduoti bendruomenės, socialinio tinklo be mainų. Socialiniai mainai, tai svarbiausias socialinio gyvenimo principas, net meilę ir draugystę galima analizuoti per mainų santykių prizmę. Geros tarpusavio paslaugos tarp lygių sukuria socialinius ryšius, tuo tarpu, kai neabipusės paslaugos ir darbai atskiria ir nutolina žmones ar žmonių grupes. Tinklų susijungimas skatina domėtis jų kaita, poveikiu, plitimu. Svarbu išaiškinti, ištirti kaip yra stebimas socialinių tinklų poveikis, kokie tyrimai atliekami jiems analizuoti. Magistro darbe... [toliau žr. visą tekstą] / In the century of communication more and more functions and processes are linked into networks. The social links among people are rather intensive and extensive. The networks are the open structures which can expand ad infinitum, incorporating the new knots which enable to maintain the correlation in the network. The network social framework is very dynamic, plain and able to develop the innovations without risk to overbalance. Various communities agree that the social network is the framework of social human relations and intercommunication. In the present paper the theory of the networking systematize the sites among the participants and the influence of the resource distribution to the network and its participants. In addition, the attention is paid to the social structure of the networking which affects the individual behaviour and attitudes forming the vista flow. The social communication is the connective part of society, without it the existence of the present form communication would not be possible. Community cannot be pictured without the social network and the interchange. The social interchange is the main principle of the social life. Actually, even love and friendship can be analyzed according to the prism of the social interchange. Decent internecine services among the levels create the social bonds, whereas, the unreciprocated services and operations disconnect and separate people. The combination of networks encourages the interest in the network alternation... [to full text]
7

InfluÃncia da sucÃÃo mÃtrica nas condiÃÃes de fluxo e estabilidade de taludes da Barragem Pesqueiro / Influence of suction matrica the flow and conditions slope stability Dam Fishing

Rosiel Ferreira Leme 22 June 2009 (has links)
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / A importÃncia do comportamento de solos nÃo saturados tem sido reconhecida no Ãmbito da mecÃnica dos solos, de forma que, nas Ãltimas dÃcadas a geotecnia tem evoluÃdo muito no sentido de compreender-se o comportamento dos solos com o objetivo de melhoria e aperfeiÃoamento dos projetos de engenharia. Uma das particularidades dos solos nÃo saturados consiste no acrÃscimo de tensÃes internas devido ao fenÃmeno da sucÃÃo. Este acrÃscimo de tensÃes tem influÃncia comprovada em muitas caracterÃsticas do solo como na sua permeabilidade, compressibilidade, resistÃncia ao cisalhamento, etc., porÃm muitos estudos realizados atualmente utilizam os conceitos da mecÃnica dos solos tradicional, nÃo levando em consideraÃÃo o comportamento dos solos nÃo saturados, dentre eles estÃo as anÃlises de estabilidade em barragens de terra. Este trabalho tem como principal meta avaliar a influÃncia da nÃo saturaÃÃo dos solos em anÃlises de estabilidade de taludes em barragens de terra durante o enchimento. Para este fim, foi realizado um estudo de fluxo e estabilidade na Barragem Pesqueiro-CE. Para a determinaÃÃo dos parÃmetros geotÃcnicos do maciÃo, foram obtidas amostras deformadas e indeformadas para a realizaÃÃo de ensaios de caracterizaÃÃo, compactaÃÃo, permeabilidade e cisalhamento direto. TambÃm foram realizados ensaios para a determinaÃÃo da curva caracterÃstica do solo por meio do mÃtodo do papel-filtro. A partir dos resultados dos ensaios geotÃcnicos, foram feitos simulaÃÃes transientes para um perÃodo de 60 (sessenta meses) de operaÃÃo da barragem Pesqueiro. Pelas simulaÃÃes de fluxo, foi possÃvel conhecer as condiÃÃes de fluxo durante o perÃodo analisado. Com base nos resultados do estudo de percolaÃÃo transiente, foram realizadas anÃlises de estabilidade no talude de jusante para o perÃodo de enchimento do reservatÃrio. As simulaÃÃes de estabilidade foram feitas por duas metodologias: levando em consideraÃÃo a sucÃÃo presente no maciÃo e outra baseada na metodologia tradicional. Nos resultados obtidos foi constatada a influÃncia na estabilidade de talude ao considerar a sucÃÃo, visualizando uma reduÃÃo no fator de seguranÃa conforme ocorre o avanÃo da frente de saturaÃÃo. TambÃm foi constatado que nos resultados em que foi considerada a sucÃÃo nas anÃlises de estabilidade, os valores dos fatores de seguranÃa foram mais elevados que os apresentados pela metodologia tradicional, constatando o conservadorismo da metodologia tradicional. / The importance of the unsaturated soil behavior has been recognized within the soil mechanics, so that in recent decades the geotechnical has much evolved in order to understand the behavior of soils with the objective of improving and improvement of engineering projects. One of the soil characteristics not saturated is the increase of internal stresses due to the suction phenomenon. This one voltage increase has proven influence on many characteristics of the soil as in its permeability, compressibility, shear strength, etc., but many studies currently performed using the concepts of the mechanics of traditional soil, not taking into account the behavior of unsaturated soils, among them are Stability analysis on earth dams. This work has as main goal to evaluate the influence of non-soil saturation on slope stability analysis in dam ground during filling. To this end, it conducted a flow analysis and stability in Fishing dam-CE. To determine the geotechnical parameters of the massif, were Soil samples taken for performing characterization tests, compression, permeability and direct shear. Also tests were performed for determining soil characteristic curve by the method of the filter paper. Starting from results of geotechnical, transient simulations were made for a period of 60 (sixty months) of operation Fishing dam. For flow simulations, it was possible know the flow conditions over the analysis period. Based on the results of the transient percolation study were performed stability analysis in the downstream slope period for filling the reservoir. The stability simulations were made by two methodologies: taking into account the suction present in massive and one based on traditional methodology. The results obtained was found to influence the stability of slope to consider suction, seeing a reduction in safety factor as It is the advance of the saturation front. It was also found that the results it was suction considered in stability analysis, the values of the factors of safety were higher than that provided by traditional methodology, noting the conservatism of traditional methodology.
8

Daugiapakopių procesų būsenų modeliavimas / State simulation of multi-stage processes

Rimkevičiūtė, Inga 14 June 2010 (has links)
Pagrindinis šio darbo tikslas yra sukurti daugiapakopių procesų būsenų modelį, kuriuo būtų galima modeliuoti įvairių galimų bet kokios sistemos trikdžių scenarijus ir atlikti demonstracinius skaičiavimus. Atsiradus sutrikimui ar pažeidimams sutrikdomas kitų sistemoje dalyvaujančių pakopų darbas ir turime tam tikras pasekmes, kurios iššaukia problemas, liečiančias aplinkui funkcionuojančius sektorius. Todėl yra labai svarbu nustatyti daugiapakopių procesų būsenų modelio galimų būsenų scenarijus, išanalizuoti jų tikėtinumą bei dažnumą ir įvertinti. Daugiausiai dėmesio skiriama perėjimo tikimybių iš vienos pakopos būsenų į kitos pakopos būsenas matricų modeliavimui ir skaičiavimo algoritmo kūrimui. Tada atliekame stebėjimą kaip elgiasi trikdžių pasirodymo tikimybės per 100 perėjimų. Tam naudojami Markovo grandinės bei procesai ir tikimybiniai skirstiniai. / The main purpose of this research is to develop multi-stage process states model that could simulate a possible range of any system failures and demonstrational calculations. In the event of disruption or irregularities affects the other systems involved in stage work and we have certain consequences, which triggered concerns about the functioning around the sector. It is very important to establish a multi-stage process states model, the possible states of scenarios, analyze their probability and the frequency and to assess it. Focuses on the transition probabilities between states in the next tier level status matrix modeling and computing algorithm. Then perform the behavior tracking script and the likelihood of interference, the likelihood of the appearance of over 100 transitions. For this purpose, Markov chains and processes, and probabilistic distributions are used.
9

Išsigimstančios matricinės dalinių išvestinių diferencialinės lygties sprendinių struktūra / Degenerate partial derivatives matrix differential equation structure

Brenčienė, Gintarė 03 August 2011 (has links)
Straipsnyje išnagrineta Moisilo- Teodoresko sistema su jaunesniaisiais koeficientais. Sistemos eilė išsigimsta hiperplokštumos taškuose. Rastas keitinys, kurio pagalba keičiama sistemos koeficientų skleidinio laipsnine eilute struktūra. Šio koeficiento struktūra atitinka sistemos koeficiento skleidinio pagrindines matricos struktūrą. Rastas formalus keitinys, leidžiantis sistemą suskaldyti i dalines sistemas, kada sistemos jaunesniųjų narių skleidinio pagrindinė matrica yra blokinė- diagonalinė. / The paper examined Moisilo-Teodoresko system junior coefficients. Number of degenerate system hiperplane points. We find the amendment, as an aid System gradual series coefficients of expansions in the structure. This coefficient structure expansions of the system coefficient matrix of the main structure. Found a formal amendment to allow the system divide into subsystems, when younger members of the system expansions in the main blockdiagonal of the matrix.
10

Grafovske metode u geometriji i geometrijske metode u grafovima / The graphs methods in geometry and the methods of geometry in graphs

Subotić Borivoj 12 February 2005 (has links)
<p>U prvoj glavi dat je prikaz osnovnih pojmova koji se koriste u tezi, sa naglaskom na osnovne pojmove teorije grafova. U drugoj glavi daju se grafovski dokazi nekih geometrijskih problema. Na primer, dajemo dokaz poznate teoreme Silvestra. iz Kombinatorne geometrije, koristeći grafove. Treće poglavlje sadrži neke geometrijske dokaze u grafovima. Na primer, poznatu Turanovu teoremu, Pikovu teoremu i drugo. U četvrtom poglavlju dajemo metodičku transformaciju prethodnih problema. Neki od problema razloženi su na delove koji se mogu prezentirati od osnovne &scaron;kole do poslediplomskih studija. Peto poglavlje sadrži komentare prethodnog, kao i preporuku UNESCO-a iz 1992. godine o obrazovanju učenika u novom milenijumu.</p> / <p>Chapter 1 contains a shoot review of the basic notions which are used in the thesis with emphasis on the basic notions of graph theory. In Chapter&nbsp; 2we present graph proofs of some geometrical problems. For example, we present some proofs of the well known theorem of Sylvester, from Combinatorial geometry, using graph methods. In Chapter 3 we present some proofs in graphs which use geometry. For example, famous Turan&rsquo;s theorem, Pick&rsquo;s theorem and some others. Chapter 4 contains methodology transformations i.e. we apply the results from the previous chapters to the situations in the clossroom. In Chapter 5 we have some comments of UNESCO, from 1992, on education of children.</p>

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