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1
YAO, JIANHUA. "Systeme sirs-ss : simulation spectrale ir et raman, par association sous-structures/sous-spectres." Paris 7, 2000. http://www.theses.fr/2000PA077236.
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Un systeme de simulation spectrale ir/raman, sirs-ss (spectres ir/raman simules par la methode de correlations sous structures/sous spectres), a ete concu et developpe. Ce logiciel de simulation spectrale ir/raman consiste en deux volets principaux : 1. La construction des bases de donnees sous-structures/sous-spectres ir/raman ; 2. La simulation des spectres ir/raman. Quatre types de bases de donnees, associant information structurale et information spectrale, molecules simples, fragments particuliers, frels de foyer atome, frels de foyer liaison, ont ete construits dans sirs-ss en utilisant la methode du data mining. Elles ont ete ordonnees d'apres les proprietes des fragments, la notion frel (precis ou flou) et les statistiques du cas (chemical abstract service). Dans ces bases, la description structurale est effectuee a partir de l'ensemble des informations sur les atomes et les liaisons. La simulation des spectres ir/raman est realisee par l'extraction systematique des sous structures pertinentes incluses dans la molecule cible, sous structures auxquelles sont associees les bandes caracteristiques correspondantes. Les divers modules de reconnaissance des fragments, ont ete realisees en adaptant au probleme l'algorithme d'ullmann. De nombreux tests effectues et des etudes comparatives avec les (rares) logiciels existant dans le domaine etablissent que sirs-ss est un systeme fiable et convivial.
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Olschewski, Martin [Verfasser]. "Von einzelnen H-Brücken zum chemischen Rezeptor : 2D-IR-Spektroskopie wasserstoffverbrückter Systeme / Martin Olschewski." Bonn : Universitäts- und Landesbibliothek Bonn, 2014. http://d-nb.info/123868775X/34.
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Engelhardt, Astrid. "Untersuchungen zum Phasenumwandlungs- und Ordnungsparameterverhalten ferroelastischer Systeme mittels der lokalen Sonden Raman-, IR- und NMR-Spektroskopie." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969275528.
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Beyvers, Stephanie. "Selective excitation of adsorbate vibrations on dissipative surfaces." Phd thesis, Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/2551/.
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The selective infrared (IR) excitation of molecular vibrations is a powerful tool to control the photoreactivity prior to electronic excitation in the ultraviolet / visible (UV/Vis) light regime ("vibrationally mediated chemistry").
For adsorbates on surfaces it has been theoretically predicted that IR preexcitation will lead to higher UV/Vis photodesorption yields
and larger cross sections for other photoreactions.
In a recent experiment, IR-mediated desorption of molecular hydrogen from a Si(111) surface on which atomic hydrogen and deuterium were co-adsorbed was achieved, following a vibrational mechanism as indicated by the isotope-selectivity.
In the present work, selective vibrational IR excitation of adsorbate molecules, treated as multi-dimensional oscillators on dissipative surfaces,
has been simulated within the framework of open-system density matrix theory.
Not only potential-mediated, inter-mode coupling poses an obstacle to selective excitation but also the coupling of the adsorbate ("system") modes
to the electronic and phononic degrees of freedom of the surface ("bath") does.
Vibrational relaxation thereby takes place, depending on the availabilty of energetically fitting electron-hole (e/h) pairs and/or phonons (lattice vibrations) in the surface, on time-scales ranging from milliseconds to several hundreds of femtoseconds. On metal surfaces, where the relaxation process of the adsorbate via the e/h pair mechanism dominates, vibrational lifetimes are usually shorter than on insulator or semiconductor surfaces, in the range of picoseconds, being also the timescale of the IR pulses used here.
Further inhibiting factors for selectivity can be the harmonicity of a mode and weak dipole activities ("dark modes") rendering vibrational excitation with moderate field intensities difficult.
In addition to simple analytical pulses, optimal control theory (OCT) has been employed here to generate a suitable electric field to populate the target state/mode maximally.
The complex OCT fields were analyzed by Husimi transformation, resolving the control field in time and energy.
The adsorbate/surface systems investigated were CO/Cu(100), H/Si(100) and 2H/Ru(0001). These systems proved to be suitable models to study the above mentioned effects.
Further, effects of temperature, pure dephasing (elastic scattering processes), pulse duration and dimensionality (up to four degrees of freedom)
were studied. It was possible to selectively excite single vibrational modes, often even state-selective.
Special processes like hot-band excitation, vibrationally mediated desorption and the excitation of "dark modes" were simulated.
Finally, a novel OCT algorithm in density matrix representation has been developed which allows for time-dependent target operators
and thus enables to control the excitation mechanism instead of only the final state.
The algorithm is based on a combination of global (iterative) and local (non-iterative) OCT schemes, such that short, globally controlled time-intervals are coupled locally in time.
Its numerical performance and accuracy were tested and verified and it was successfully applied to stabilize a two-state linear-combination and to enforce a successive "ladder climbing" in a rather harmonic system, where monochromatic, analytical pulses simultaneously excited several states, leading to a population loss in the target state.Die selektive Anregung von Molekülschwingungen mittels Infrarotlicht (IR) ist vorteilhaft, um die Wirkungsquerschnitte nachfolgender photochemischer oder photophysikalischer Prozesse zu steigern, welche durch Elektronenanregung mittels ultraviolettem (UV) bzw. sichtbarem (Vis) Licht ausgelöst werden. Für Adsorbatmoleküle auf Oberflächen wurden theoretische Vorhersagen getroffen, dass eine kombinierte (IR plus UV)-Strategie ("schwingungsvermittelte Chemie") die Ausbeute bei Photodesorption und anderen Photoreaktionen deutlich zu erhöhen vermag. Kürzlich wurde im Experiment gezeigt, dass eine rein IR-vermittelte Desorption möglich ist, welche über einen schwingungsangeregten Mechanismus erfolgt. Hierbei wurde molekularer Wasserstoff von einer Si(111)-Oberfläche desorbiert, an der atomarer Wasserstoff und atomares Deuterium gebunden waren. Eine thermische Anregung, die zum Bindungsbruch führt, konnte hierbei wegen der Isotopenselektivität ausgeschlossen werden. In der vorliegenden Arbeit wurde die selektive IR-Schwingungsanregung von Adsorbaten, die als multidimensionale Oszillatoren auf dissipativen Oberflächen behandelt wurden, mit Hilfe der Dichtematrixtheorie für offene Systeme simuliert. Nicht nur die potentialvermittelte Kopplung zwischen den einzelnen Moden ist ein Hindernis für selektive Anregung, sondern auch die Kopplung der Moden des Adsorbats ("Systems") an elektronische und phononische Freiheitsgrade des Substrats ("Bades"). Die Schwingungsrelaxation verläuft hierbei auf Zeitskalen, die von Millisekunden bis hin zu wenigen hundert Femtosekunden reichen, je nach Verfügbarkeit energetisch geeigneter Elektron-Loch-Paar-Anregungen bzw. Phononen (Gitterschwingungen) in der Oberfläche. Auf Metalloberflächen, bei denen die Schwingungrelaxation des Adsorbats zumeist von einem Elektronen-Loch-Paar-Mechanismus dominiert wird, sind die Schwingungslebensdauern normalerweise kürzer als auf Isolator- oder Halbleiteroberflächen und betragen einige Picosekunden, ebenso wie die Zeitskala der hier gewählten IR-Pulse. Weitere Faktoren, die die selektive Anregung behindern können sind die Harmonizität einer Mode und die geringe Dipolaktivität sogenannter "dunkler Moden", die eine Anregung mit moderat intensiven Feldern erschweren. Zusätzlich zu einfachen analytischen Pulsen wurden Felder mittels Optimaler Kontrolltheorie (OCT) erzeugt, um eine(n) Zielzustand/-mode maximal zu populieren. Komplexe OCT Pulse wurden mit Hilfe der Husimi-Transformation analysiert, welche das Kontrollfeld im Zeit- und Energieraum aufzulösen vermag. Die in dieser Arbeit untersuchten Adsorbat/Oberflächen-Systeme waren CO/Cu(100), H/Si(100) und 2H/Ru(0001), die sich als passende Modelle erwiesen, um oben genannte Faktoren zu untersuchen. Desweiteren wurden die Auswirkungen von Temperatur, reiner Dephasierung (elastische Streuprozesse), Dauer des IR-Pulses und Systemdimensionalit"at (Behandlung von bis zu vier Freiheitsgraden) studiert. Einzelne Schwingungsmoden konnten angeregt werden, in vielen Fällen sogar zustandsselektiv. Spezielle Prozesse wie die Anregung "heißer Banden", Desorption via alleiniger Schwingungsanregung und die Anregung "dunkler Moden" wurden simuliert. Schließlich wurde ein neuer OCT-Algorithmus in Dichtematrixdarstellung entwickelt, der es erlaubt, zeitabhängige Zieloperatoren einzuführen, um nicht nur Kontrolle über den Endzustand einer Anregung, sondern auch über den Anregungsmechanismus zu erlangen. Der Algorithmus basiert auf einer Kombination von globaler (iterativer) und lokaler (nicht-iterativer) optimaler Kontrollschemata in der Art, dass kurze, global kontrollierte Intervalle zeitlich lokal miteinander gekoppelt werden. Nach numerischen Tests wurde der Algorithmus erfolgreich angewandt, um eine Linearkombination aus zwei Zuständen zu stabilisieren, sowie um eine schrittweise "Leiteranregung" in einem harmonischen System zu forcieren, bei dem monochromatische, analytische Pulse mehrere Zustände zugleich anregen und somit einen Populationsverlust im angestrebten Zielzustand zur Folge haben.
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Wilhelm-Stein, Thomas. "Information Retrieval in der Lehre." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-199778.
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Das Thema Information Retrieval hat insbesondere in Form von Internetsuchmaschinen eine große Bedeutung erlangt. Retrievalsysteme werden für eine Vielzahl unterschiedlicher Rechercheszenarien eingesetzt, unter anderem für firmeninterne Supportdatenbanken, aber auch für die Organisation persönlicher E-Mails. Eine aktuelle Herausforderung besteht in der Bestimmung und Vorhersage der Leistungsfähigkeit einzelner Komponenten dieser Retrievalsysteme, insbesondere der komplexen Wechselwirkungen zwischen ihnen. Für die Implementierung und Konfiguration der Retrievalsysteme und der Retrievalkomponenten werden Fachleute benötigt. Mithilfe der webbasierten Lernanwendung Xtrieval Web Lab können Studierende praktisches Wissen über den Information Retrieval Prozess erwerben, indem sie Retrievalkomponenten zu einem Retrievalsystem zusammenstellen und evaluieren, ohne dafür eine Programmiersprache einsetzen zu müssen. Spielemechaniken leiten die Studierenden bei ihrem Entdeckungsprozess an, motivieren sie und verhindern eine Informationsüberladung durch eine Aufteilung der LerninhalteInformation retrieval has achieved great significance in form of search engines for the Internet. Retrieval systems are used in a variety of research scenarios, including corporate support databases, but also for the organization of personal emails. A current challenge is to determine and predict the performance of individual components of these retrieval systems, in particular the complex interactions between them. For the implementation and configuration of retrieval systems and retrieval components professionals are needed. By using the web-based learning application Xtrieval Web Lab students can gain practical knowledge about the information retrieval process by arranging retrieval components in a retrieval system and their evaluation without using a programming language. Game mechanics guide the students in their discovery process, motivate them and prevent information overload by a partition of the learning content
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CHABOISSIER, MARIE-CHRISTINE. "Etude de la transcription et de la regultion du facteur i implique dans le systeme ir de dysgenesie hybride chez drosophila melanogaster." Paris 11, 1993. http://www.theses.fr/1993PA112146.
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Le facteur i de drosophila melanogaster est un element transposable qui appartient a la famille des lines de mammiferes. Ces elements transposent par un intermediaire arn. Le facteur i controle le systeme i-r de dysgenesie hybride, du a l'existence de deux types de souches: les souches inductrices qui possedent des facteurs i actifs et les souches reactives qui en sont depourvues. Le facteur i transpose a haute frequence dans la lignee germinale des femelles sf, issues des croisements entre femelles reactives et males inducteurs. Un arn correspondant a la totalite du facteur i est exprime uniquement dans les conditions de transposition et a des taux correles a la frequence de transposition. Il a toutes les caracteristiques d'un intermediaire de transposition et semble etre egalement utilise pour la synthese des polypeptides necessaires a la transposition. L'activite du facteur i est regulee au niveau transcriptionnel, ainsi qu'au cours du developpement. Le facteur i possede deux orfs et l'orf1 pourrait etre un represseur intervenant dans la transposition du facteur i. Cependant, la surexpression de cette orf n'affecte pas les differentes composantes du systeme i-r de dysgenesie hybride. Afin d'etudier le mecanisme et la regulation de la transposition du facteur i, les premieres etapes de la mise au point d'un element i marque ont ete realisees
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Crozatier, Michèle. "Structure et organisation des elements i impliques dans le systeme i-r de dysgenesie hybride chez drosophila melanogaster." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF21043.
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Monin, Jean-Louis. "Conception et réalisation d'une camera astronomique basée sur un détecteur infrarouge bidimensionnel : résultats astrophysiques." Phd thesis, Université Paris-Diderot - Paris VII, 1987. http://tel.archives-ouvertes.fr/tel-00725260.
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Après une étude théorique, puis modélisée, de l'analyse d'une image dans le plan focal d'un télescope par un détecteur à deux dimensions (chapitre 1) et un bref rappel de physique du solide (chapitre 2) on étudie un détecteur infrarouge bidimensionnel de 32x32 l'IRCCD. La description d'une caméra astronomique basée sur ce détecteur, et des choix effectués dans sa réalisation est donnée (chapitre 3). L'attention est portée sur les problèmes de l'observation sous fort flux de photons du fond. Un chapitre entier est consacré à une étude détaillée de l'IRCCD et de ses caractérisriques (chapitre 4). On décrit ensuite l'ensemble du système monté sur télescope, ainsi que les procédures d'observation adoptées (chapitre 5). Quelques résultats de mesure et de calibration sur télescope sont proposés. Le dernier chapitre est consacré à la présentation de résultats astrophysiques préliminaires.
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Lavige, Jean-Marc. "Systeme i-r de dysgenesie hybride chez drosophila melanogaster : etude du developpement abortif des embryons de meres sf." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF21080.
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Ersoy, Kevin. "Protected IR input system." Click here to view, 2009. http://digitalcommons.calpoly.edu/eesp/18/.
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Thesis (B.S.)--California Polytechnic State University, 2009.Project advisor: Dennis Derickson. Title from PDF title page; viewed on Jan. 28, 2010. Includes bibliographical references. Also available on microfiche.
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Lachgar, Abdessadek. "Etude cristallographique et spectroscopique de quelques phases nouvelles du systeme k : :(2)o-sb::(2)o::(5)-p::(2)o::(5)." Nantes, 1987. http://www.theses.fr/1987NANT2015.
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Identification de cinq phases nouvelles. Determination de la structure pour chacune d'entre elles par diffraction rx sur monocristal. Les edifices covalents sont construits a partir d'octaedres sbo::(6) partageant des sommets ou des aretes, et de tetraedre po::(4) lies aux octaedres par deux, trois ou leurs quatre sommets. Caracterisation par absorption ir, diffusion raman et spectrometre rmn du **(31)p
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Higdon, Thomas (Thomas Charles). "FT-IR spectroscopy technology, market evolution and future strategies of Bruker Optics Inc." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59245.
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Thesis (S.M. in System Design and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 72-74).
This thesis explores the technology and market evolution of FT-IR spectroscopy over its nearly forty year history to aid in determining future product design and marketing strategies for an industry-leading firm, Bruker Optics. As a benchmark, a universal performance metric was developed that combined key specifications applicable to all FT-IR spectrometers. By researching a selected set of Bruker Optics' spectrometer systems, this performance benchmark was calculated along with each instrument's weight, volume, power consumption, and cost. The universal performance curve displayed an exponential increase from 1974 to 1988, but the rate of improvement has since decreased dramatically to incremental increase in the last twenty years. Using Design Structure Matrix analysis, the architectural trends of the same instruments were traced to discern the impact an instrument's overall design had on its performance. This analysis resulted in no definitive correlations between a spectrometer's performance and its architecture. Rather the overall instrument performance increases were attributable to individual component performance increases. However, with respect to volume, power consumption, and cost, there were clear correlations to instrument architecture. While spectrometer weight was fairly consistent over the years, decreasing instrument volume coincided with decreasing part count. Likewise, power consumption decreases over the past twenty years corresponded with decreasing energy and informational links within each instrument's architecture. The most striking correlation was the nearly perfect linear relationship between decreasing cost and decreasing instrument matter/spatial link count. Over the past fifteen years, incremental performance increase coupled with exponentially decreasing cost has resulted in FT-IR spectrometers becoming more and more commoditized. Consumers expect high performance at low cost which jeopardizes future profitability and growth for companies in the increasingly competitive FT-IR market. Bruker Optics must look to capture greater market share in segments outside of the research segment it currently dominates. By shifting from their historically product-oriented culture to a more market-oriented one, and by specifically targeting the near Infrared scanner segment, Bruker Optics will be primed for future success.
by Thomas Higdon.
S.M.in System Design and Management
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Rudaitis, Gediminas. "Įvykiais grindžiamų informacinių sistemų modeliavimo ir realizavimo metodika." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080128_101213-91159.
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Pastaruoju metu informacinių technologijų pasaulyje dažnai minimos paslaugomis ir įvykiais grindžiamų sistemų architektūros. Greitai besikeičiančiame verslo pasaulyje įmonėms yra aktualu turėti sistemas, kurios greitai ir lengvai būtų priderintos prie besikeičiančių verslo procesų ir sumažintų tokių sistemų kūrimo ir palaikymo išlaidas. Naudodamos paslaugomis grindžiamą architektūrą, įmonės gali lanksčiai tvarkyti savo veiklą ir kurti sistemas, nekeisdamos turimos techninės ar programinės įrangos. Nors literatūroje yra gausu straipsnių apie įvykiais grindžiamas sistemas ir jų privalumus, tačiau sistemos architektui, nusprendusiam sukurti įvykiais grindžiamos sistemos projektą, iškyla aktualus klausimas: kaip aprašyti ir modeliuoti įvykius, kurie ateina iš išorės arba sugeneruojami pačios sistemos ar vartotojų veiksmų su sistema metu. Akivaizdu, kad šiuo metu nėra populiarios metodikos, kuri apibrėžtų, kaip reikia atlikti įvykių modeliavimą ir jį panaudoti informacinių sistemų kūrimo procese. Šiame darbe nagrinėjami įvykiais grindžiamų sistemų modeliavimo metodai ir realizavimo technologijos. Atsižvelgiant į analizės rezultatus pateikiama įvykiais grindžiamų sistemų modeliavimo ir realizavimo metodika. Ši metodika pritaikyta ir įvertinta sukuriant publikacijų portalo prototipą.Nowadays the terms SOA (Service Oriented Architecture) and event driven systems are often used when talking about systems with large scalability, performance and interoperability. In fast changing business world it is vital to have systems that could be easily changed whenever new functionality is needed. Using service oriented architecture companies can easier adapt its business process to changed business rules. Even though there are a lot of articles and publications about event driven systems and their advantages, but the system architect who decides to build an event driven system is facing the problem: how to model and describe events of the system. Obviously, that there are no popular and widely accepted methodology for event driven system modelling. The goal of this work is to develop a methodology for modelling an event driven systems. This methodology describes the metamodel for event modelling and the usage of the event model in system development life cycle. The developed methodology for modelling and implementation of event-driven information systems was used for making a model of publications portal prototype. Usage of this methodology in system design process adds more clarity, because all the events, which can be generated in the system and their types, are described in one diagram – event model. The event model elements can be used in other model diagrams, such as sequence or state machine diagrams.
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Labanauskaitė, Ernesta. "Reliatyviosios ir absoliučiosios solmizacijos sistemų pasirinkimo priežastys muzikos pedagogikoje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080924_174940-93918.
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Muzikinės klausos ugdymas – tiek absoliučios, tiek reliatyvios solmizacijos sistemų objektai. Jis abiem solmizacijos sistemoms yra vienodas: pastovūs ir nepastovūs laipsniai, gama (kaip mažoro, minoro dermės išraiška), intervalai, akordai ir t.t. Esminis skirtumas tarp absoliučios ir realiatyvios sistemos yra mokomosios medžiagos, mokymo turinio apimtyje. Šiuo darbu nesiūloma taikyti vieną iš sistemų. Tai kiekvieno muzikos pedagogo apsisprendimas. Tačiau jis turi būti apgalvotas, motyvuotas ir sąmoningas. Svarbus vaidmuo, lemiantis sėkmingą vaikų muzikinę veiklą, tenka šiam darbui tinkamai pasirengusiems muzikos mokytojams. Kiekvienas pedagogas turi gerai susipažinti tiek su reliatyvia, tiek su absoliučia solmizacijos sistema, nes nėra vieningos nuomonės dėl abiejų sistemų privalumų ir trūkumų.Development of musical hearing is the object of both absolute and relative systems of solmisation. It is the same for both systems of solmisation: constant and unconstant degrees, scale (as the expression of major and minor codes), intervals, chords and so on. The main difference between absolute and relative systems is in the extent of teaching material and teaching content. This paper does not aim at the proposal of one of these systems. It is the decision of each teacher of music. However, it must be thought over, motivated and made deliberately. Teachers well-prepared for this work play a very important, role in the successful musical activity of children. Each teacher must be well acquainted both with relative and absolute systems of solmisation as there is no unanimuos opinion concerning advantages and drawbacks of each of them.
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Kriščiūnas, Darius. "Gyvenamojo namo šildymo ir vėdinimo sistemos kompiuterinio valdymo modelio sudarymas ir tyrimas naudojant Petri tinklą." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050522_223544-30240.
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Presently information systems are increasingly penetrating to our daily life. Recently it is relevant to integrate the newest technologies. In that way traditional system becomes “smart” who are more economical, optimal, and self-sufficient. The biggest problem is to make a model of “smart” system. There were analyzed modeling methods, heating and cooling control systems in this job. Mathematical model for heating and cooling controller using timed Petri nets was presented. According to analyzed problems it was made verification with Matlab during experimental phase. There was made comparison evaluation of mathematical model made with timed Petri nets and fuzzy logic.
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Vaicekavičiūtė, Edita. "Aukštojo mokslo ir studijų finansų planavimas ir valdymas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110711_150506-46973.
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Nors ir aukštojo mokslo ir studijų finansavimas nepakankamas, tačiau jų vaidmuo Lietuvoje yra daugiafunkcinis: studijomis, moksliniais tyrimais ar menine kūryba skatinti naujų žinių ir kultūros vertybių kūrimą, padėti išsaugoti tautos kultūros perdavimą, prisidėti prie nacionalinių bei globalinių tikslų įgyvendinimo bei užtikrinti darnią, žiniomis pagrįstą krašto ūkio, aplinkos ir kultūros plėtrą, vidinį ir tarptautinį ūkio konkurencingumą, demokratinės valstybės raidą. Temos aktualumas - daugeliui kyla klausimas, ar aukštasis mokslas Lietuvoje finansuojamas pakankamai. Šiandien aukštasis mokslas literatūroje įvardijamas, kaip nepakankamas jo finansavimas, Magistrinio darbo objektas – aukštasis universitetinis mokslas ir studijos bei jo finansavimas. Tyrimo tikslas – įvertinti Lietuvos aukštojo universitetinio mokslo ir studijų finansavimo efektyvumą, remiantis Vilniaus Pedagoginio Universiteto patirtimi.While higher education and higher education funding is insufficient, but their role in Lithuania is a multi - fuction: studies, research or artistic creation to promote new knowledge and cultural assets for help preserve the national cultural transmission, and contribute to national and global goals and to ensure a sustainable, knowledge of the economy, environment and cultural development, domestic and international economic competitiveness, the development of a democratic state. Relevance - many question whether higher education is financed by Lithuania enough. Today, higher education in literature is identified as a lack of funding. The Master's thesis object - higher university education training and funding. Objective of the study - to assess the Lithuanian higher education and university education financing more efficient, Vilnius Pedagogical University experience.
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Kuprys, Simonas. "ALU SystemC modelių tyrimas ir kūrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_143933-26512.
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Magistro darbe analizuojami aritmetinio loginio įtaiso (ALU) modeliai, operacijos ir architektūros. Išanalizavus mokslinę literatūrą, pasirenkama ALU architektūra bei atliekamų operacijų aibė. Realizuojamas dviejų pakopų sudalintos operacijų aibės ALU modelis. Atlikus apibendrinimą atliekami eksperimentai. Eksperimento modeliai modifikuojami – atliekamas ALU operacijų sudalinimas tarp ALU ir valdančios logikos (CU) operacijų poaibių. Nagrinėjami konkrečių ALU operacijų atlikimo pirmos arba antros pakopos modulyje pranašumai ir trūkumai. Sukurti parametrizuoti (bendriniai) ALU modeliai su kintamo duomenų pločio operandais. ALU modeliai aprašyti aparatūros aprašymo kalba SystemC, sumodeliuoti ir susintezuoti. Gauti ALU SystemC modelių sintezės rezultatai parodė operacijų aibės sudalinimo bei skirtumo tarp retai ir dažnai naudojamų operacijų perkėlimo į skirtingas pakopas poveikį pagrindinėms lusto charakteristikoms: plotui, signalo vėlinimui ir energijos suvartojimui. Optimalus operacijų aibės sudalinimas dviejų pakopų architektūroje leidžia pasiekti reikiamos projektuojamo įtaiso charakteristikos pagerėjimą. Taikant šį metodą, galima kritinei (daug aparatūros resursų naudojančiai) ALU operacijai sudaryti mažesnį plotą luste užimantį arba mažiau energijos suvartojantį ALU variantą.This work studies arithmetic logic unit (ALU) models, operations and architectures. ALU architecture and operation set is chosen based on the analysis of the known scientific publications. Two-stage divided operation set ALU model is implemented and used for the experiments. The experimental ALU models are modified using different variants of partitioning of ALU operation set, when ALU operations are divided between main ALU block and control unit (CU). Pros and cons of ALU operation performance in the first or the second stage are examined. Developed generic ALU models can be instatiated for data operands with variable data width. ALU models are coded in a high-level hardware description language SystemC, simulated and synthesized. The results of ALU SystemC model synthesis showed the effect of the division of the operation set on the main chip characteristics: area, delay and energy consumption and the difference of subdivision of rare or often used operations into different ALU stages. Optimal subdivision of operation set in two-stage ALU architecture allows getting a better performance of the designed device. Using this method the designer can select an instance of ALU that has a smaller area and consumes less energy for critical (using more hardware resources) operation.
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Strazdienė, Daiva. "Medžiagų ir produkcijos apskaita ir auditas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050526_145003-12868.
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Research object: stocks. Research subject: accounting and audit. Research aim: to investigate the main problems of stocks accounting and audit and to give suggestions that can help to improve stocks accounting and audit. Objectives: 1)To analyze the peculiarities of stocks and production accounting and audit; 2)To carry out an empirical research of stocks and production accounting and audit; 3)To define and analyze the main problems of stocks and production accounting and audit; 4)To formulate conclusions and suggestions in order to develop the field of stocks accounting and audit; Research methods: logical analysis, synthesis, comparison, questionnaire survey and description. In the process of investigation there were analyzed theory and practice of stocks accounting and audit, investigated the main problems of stocks accounting and audit and also given suggestions that can help to solve investigated problems.
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Borniol, Eric de. "Etude des bruits limitant la sensibilité d'un spectromètre d'absorption différentielle à diode laser infrarouge : application à la mesure de faibles absorptions moléculaires." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10080.
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L’étude de l'atmosphère ou le suivi de processus industriels nécessite des instruments capables de mesurer in situ et de façon sélective de faibles concentrations de gaz. La spectrométrie d'absorption par diode laser infrarouge répond à ce problème mais sa sensibilité est limitée par le bruit de mesure. La première partie de ce mémoire est consacrée à l'étude des bruits limitant la sensibilité des méthodes de spectroscopie utilisant des diodes laser aux sels de plomb, et aux différentes techniques mises en œuvre pour l'améliorer. Les fluctuations de puissance de la diode laser étant le facteur le plus limitant pour la sensibilité, l'étude du bruit relatif d'intensité (ou rin) d'une telle source a été réalisée. Cette étude montre que ce bruit peut être diminué en fonction des conditions expérimentales et qu'il présente, dans tous les cas, une décroissance avec la fréquence d'analyse (bruit en 1/f). La seconde partie du mémoire est dédiée à la conception et à l'évaluation de la sensibilité ultime d'un spectromètre d'absorption différentielle à balayage rapide. La longueur d'onde d'émission est balayée périodiquement autour d'une raie d'absorption moléculaire en modulant le courant injecte dans la diode. Deux voies optiques de mesure l'une traversant le milieu et l'autre non sont soustraites l'une à l'autre avant la numérisation du signal. Le signal est ensuite moyenne sur plusieurs périodes. L'étude du filtre résultant du balayage spectral rapide montre que le bruit en 1/f peut être filtre en diminuant la période de modulation. La soustraction de deux voies associe à une courte période de balayage (0,1 ms) permettent d'atteindre une très grande sensibilité. L'analyse de spectres d'absorption de la molécule de co vers 2054 cm 1 montre que le spectromètre réalise permet de mesurer une absorption relative de la puissance laser de 1,1. 10 6 en 54,5 ms. Sa sensibilité limite, calculée pour une bande passante de 1 hz est de 7. 10 8. Cette sensibilité est proche de celle obtenue par la technique actuellement la plus sensible telle que la spectroscopie de modulation haute fréquence.
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Emeljanovas, Arūnas. "Sportinių žaidimų ir ciklinių sporto šakų poveikis 11–14 metų berniukų širdies ir kraujagyslių sistemai, motorinių ir sensomotorinių gebėjimų raidai." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070222_131010-49618.
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The aim of this study is to determine the effect of regular and long term sports games and cyclical sports events exercises at the age of 11–14 for boys development in motor and sensomotor abilities and cardiovascular system adaptation peculiarities.
The next methods were used: Tapping test, Roufier exercise test, vertical jump test, 30 s maximal jumping test, measurements of arterial blood pressure, electrocardiography (ECG), dynamometry, stabilography, measurements of body mass components, non linear ECG data analysis methods.
Conclusions:
1. Motor and sensomotor abilities of non-athlete children develop in the age phase of 11–14: muscles’ power and capability, central nervous system (CNS) efficiency indices increase. The improvement of results is irregular: the rate of improvement decreases at the age of 13–14.
2. The increase in motor, sensomotor and cardiovascular system indices of cyclic sports events for children were indicated higher than in non-athlete contemporaries at the age of 11–13. Statistically significant differences of cardiovascular and most of CNS indices were not noticed at the age of 13–14 and muscles’ functional preparedness indices were significantly better than non-athletes.
3. The improvement of children, attending sports games trainings, functional preparedness indices are significantly greater than in non-athletes and cyclic sports events athletes at the age of 11–13. At the age of 13–14 the rate of indices reduce and except muscles preparedness... [to full text]
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Lebskis, Dominykas. "Demokratizacijos procesas ir jo rezultatai Kazachstane ir Kirgizijoje pokomunistiniu laikotarpiu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100616_113703-91337.
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Demokratizacija ar liberalizacija – ilgi ir sudėtingi procesai. Tai labai gerai atsispindi Centrinės Azijos regione. Čia po SSRS žlugimo, kaip ir kitos po-sovietinės valstybės taip Kirgizija bei Kazachstanas, turėjo sukurti naujas arba stipriai modifikuoti senas konstitucijas bei rinkimų sistemas. Oficialiai abi šalys pasirinko demokratinius režimus. Tai pažymima abiejų valstybių konstitucijų pirmosiose pastraipose. Tačiau reali valstybių politika iki šiol koncentruojasi ties jų lyderiais ir „klanais“ bei atskirais regionais. Aptariamose valstybėse de Jure ir de facto demokratija įkūnijama įvairiais būdais. Iš principo esminės demokratinės teisės, tokios kaip: žodžio laisvė, spaudos laisvė, religijos ir bendravimo laisvės yra uždraustos arba iš dalies suvaržytos. Šiame darbe bus pristatomos skirtingos demokratinės tranzicijos teorijos, bei jų taikymo galimybė Kazachstano ir Kirgizijos atvejais. Peržvelgiama ne tik teorijų raida, bet ir pateikiama demokratizacijos ir liberalizacijos klasifikacija. Trumpai pristatomi abiejų valstybių istorinės raidos ir dabartinis kontekstai. Darbe dėmesys labiausiai sutelkiamas rinkimų sistemos ir konstitucijų formavimuisi pokomunistinių laikotarpiu bei tolimesnei jų raidai. Išskiriami atskiri valstybių valdymo atvejai, kuriuos įteisino kintančios konstitucijos ar rinkimų įstatymai.Democratization and liberalization are very elaborate processes. This is very obvious in the region of Central Asia. Just after collapse of USSR countries like Kyrgyzstan and Kazakhstan had to create new or completely modify old constitutions and electoral laws. Officially both countries had chosen democratic systems. That is also marked in the first articles of their constitutions. However real politics in these countries is based on their leaders, “clans” and separate regions preferences. De jure and de facto democracies are accomplished in many different ways. Traditionally democratic freedoms such as freedom of speech, freedom of the press, freedom of religion and freedom of association – while provided for in the constitutions - are suppressed and/or severely limited. Several democratic transition theories and their adoption in Kyrgyzstan and Kazakhstan will be presented in this study. It will be overviewed not only their development but also marked different classification. Most of the study will be concentrated into electoral systems development and development of each country’s constitutions after collapse of USSR. It will be marked different types of ruling systems, which have provided each electoral law or constitution amendments.
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Jasaitis, Vytautas. "Gyvenamojo namo šildymo ir vėdinimo sistemos kompiuterinio valdymo modelio sudarymas ir tyrimas naudojant miglotąją logiką." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050522_222507-69302.
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Presently information systems are increasingly penetrating to our daily life. Recently it is relevant to integrate the newest technologies. In that way traditional system becomes “smart” who are more economical, optimal, and self-sufficient. The biggest problem is to make a model of “smart” system. There were analyzed modeling methods, heating and cooling control systems in this job. Mathematical model for heating and cooling controller using fuzzy logic was presented. According to analyzed problems it was made verification with Matlab during experimental phase. There was made comparison evaluation of mathematical model made with fuzzy logic and timed Petri nets.
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Taraškevičius, Aurimas. "Organizacijos "Dobilas" veiklų ir procesų sisteminė analizė ir projektavimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080820_111646-78154.
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Šis diplominis darbas susideda iš trijų dalių, kuriuose pateikiama teorinė, praktinė situacijos analizė ir sprendimų priėmimas – kurie atlikti pasinaudojat sisteminiu organizacijos vystymo požiūriu. Teorinė literatūros analizė apima sistemine metodologijos ir minties veiklos pristatymą ir analizę, nuolatinių pokyčių įtaką organizacijos aplinkai bei vadybos mokyklų modelių apžvalgą. Teorinės dalie teiginiais yra paremtos kitos šio darbo dalys. Situacijos analizė pristato organizacijos išorinės ir vidinės aplinkos analizę, išskiriant jų poveikį organizacijos „Dobilas“ veiklai. Naudojat atliktos analizės duomenis, i��skiriamos pagrindinės problemos. Projektinių sprendimų dalyje yra pateikiamos alternatyvos išspręsti antroje dalyje iškeltoms problemoms. Pertvarkant funkcines vietas bei veiklas ir pakeičiant organizacijos veiklos koncepciją, koncentruojantis ties savos produkcijos gaminimu ir realizavimu Lietuvos rinkoje. Diplominio darbo pabaigoje pateikiamos galutinės, apibendrintos išvados kaip darbo pradžioje iškeltų tikslų bei uždavinių rezultatai.Diploma paper for master’s degree consist of three chapters, which provide theoretical, situation analysis and decision making – making projects based on systematic approach on the development of organization. The theoretical analysis deals with application of systematic methodology of mind and strategic management in the development of state organizations, the influence of dynamic changes in the working environment and analysis of management theories. Theoretical analysis is used for other parts of this work as a main supplier of methods and strategies formatting projects. Situation analysis covers the detail analysis of organization’s inner and outer environment and it’s influence on changes in organization “Dobilas”. By using all analysis made in second part, it is made some conclusion describing main problems, which should be solved. In the chapter of decision making, there are some solutions offers to solve all the problems described in second chapter, by rearranging functional places and activities inside the organization and changing whole conception of the organization, by starting to production and realization of the products in Lithuania’s market. At the end of the diploma paper final conclusions have been made stating that the objective of the diploma paper has been achieved and the task has been accomplished.
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Gaikovas, Artūras. "Muitinės ir kitų pareigūnų socialinės garantijos: praktika ir pokyčiai (lyginamoji analizė)." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070109_150156-80547.
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Santraukoje pateikiama darbo tema bei pagrindinės, darbe vartojamos sąvokos. Aprašyta, ką autorius nagrinėja darbe, kokių tarnybų pareigūnų socialines garantijas lygina, kokių nuostatų laikomasi rašant darbą. Pateikiama socialinių garantijų esmė bei jų taikymo problemos ir pasekmės. Socialinės garantijos bendrąja prasmė – tai priemonių sistema, kuri padeda piliečiams užtikrinti jų teises ir laisves. Subjektų įvairovė leidžia nagrinėti socialines garantijas įvairias aspektais. Darbe nagrinėjamos bei lyginamos muitinės ir krašto apsaugos sistemos pareigūnams teikiamų socialinių garantijų ryšys ir teisinė bazė. Nagrinėjama socialinių garantijų įtaka pareigūnų asmeniniam gyvenimui bei gerovei. Darbe laikomasi nuostatos, kad muitinės pareigūnų socialinių garantijų teisinė bazė nėra tinkamai reglamentuota ir pritaikyta prie besikeičiančių valstybės ekonomikos rodiklių. Dėl to sumažėjo muitinės pareigūnų tarnybos Lietuvos muitinėje motyvacija. Išnagrinėtų teisinių bazių bei atlikto sociologinio tyrimo (skirto muitinės bei krašto apsaugos sistemos pareigūnų požiūriui į socialinių garantijų taikymą) pagrindu, daroma išvada, kad muitinės pareigūnams suteikiamos nepakankamos socialinės garantijos.The thesis and the main definitions are laid in the summary. It is described, what questions the author researches in the thesis, what kinds of the social guarantees of the service officers are compared, what the author’s attitude is. The purport of the social guarantees, their problems and the result of their practice are laid. The general purport of the social guarantees – it is the system of means that helps citizens to vouchsafe their rights and liberty. Variety of the individuals allows researching the social guarantees in different dimensions. In the thesis the types and the juristic base of the social guarantees of the customs and military officers are compared. The influence of the social guarantees upon officers’ private life and welfare is also researched. It is observed that the social guarantees and their juristic base of customs service officers are not properly regulated and adjusted to the country volatile economic index. Therefore, the motivation of the customs service officers has fallen down. Under the basement of the researched juristic bases and accomplished sociological analysis (which was to research and to get to know the opinion of customs service and military officers about applied social guarantees), the conclusion is that provided social guarantees of customs service officers are imperfect.
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Navickas, Marius. "Savitakio ir vakuuminio nuotakyno palyginamoji analizė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154738-18713.
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Magistro studijų baigiamasis darbas, 58 puslapiai, 46 paveikslai, 10 lentelės, 32 literatūros šaltiniai, 9 lietuvių kalba ir 23 už sienio kalba Tyrimo objektas – Vakuuminis ir savitakinis nuotakynas. Darbo tikslas – atlikti vakuuminio ir savitakinio nuotakyno palyginamąją analizę. Uždaviniai: 1. Išanalizuoti sistemų privalumus ir trūkumus; 2. Suprojektuoti savitakinį ir vakuuminį tinklą pasirinktai gyvenvietei; 3. Atlikti suprojektuotų tinklų ekonominė analizė Tyrimo metodai – lietuvių ir už sienio mokslinės literatūros lyginamoji analizė, scheminio vaizdavimo metodas, projektavimas. Išstudijavus Lietuvių ir užsienio literatūrą apie vakuuminį bei savitakinį nuotakyną, apžvelgta dabartinė nuotakynų būklė Lietuvoje, atlikta palyginamoji analizė, nustatyti pagrindiniai sistemų privalumai bei trūkumai, apžvelgtos vakuuminės sistemos pritaikymo sritys. Vilniaus raj. Sakališkių gyvenvietei suprojektuoto vakuuminio bei savitakinio tinklo analizė parodė, kad vakuuminio nuotakyno statybos kaštai yra beveik dvigubai mažesni negu savitakinio. Atlikta analizė parodė, kad vakuuminiai nuotakynai yra perspektyvūs tam tikromis sąlygomis, tačiau Lietuvoje nepagristai nenaudojami. Vakuuminiai nuotakynai yra nepakeičiami projektuojant lygiose, retai apgyvendintose kaimiškose vietovėse. Priimant sprendimą dėl gyvenvietės nuotekų sistemos pasirinkimo, turi būti atliktas bent dviejų skirtingų sistemų variantų palyginimas.Master degree final work consists of 58 pages, 46 pictures, 10 tables and 32 literatures. Test object – Vacuum and gravity system. Work purpose is to perform vacuum and gravity sewer system’s comparison analysis. Main tasks: 1. Analyze systems advantages and disadvantages; 2. Project gravity and vacuum systems for chosen village; 3. Perform economical analysis for projected systems; Test methods are Lithuanian and foreign scientific literatures comparison analysis, schematic representation method, planning. Overviewed Lithuanian and foreign scientific literature about vacuum and gravity sewer system was overlooked now days sewer situation in Lithuania, completed systems comparison analysis, identified the main systems advantages and disadvantages, overlooked vacuum sewer systems appliances areas, for Sakaliskes village was projected vacuum and gravity systems. Accomplished analysis showed that vacuum sewers are perspective under certain conditions, but in Lithuania interfere unused. Vacuum sewers are unchangeable in flat territories and in rural areas. Before project starts, there should be completed comparison of vacuum, gravity and pressure sever systems.
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Masiulaitytė, Inga. "Regresiniai ir degradaciniai modeliai patikimumo teorijoje ir išgyvenamumo analizėje." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100527_134940-11585.
Full textAbstract:
Daktaro disertacijos tyrimo objektai yra rezervuotos sistemos ir degradaciniai modeliai. Norint užtikrinti svarbių sistemos elementų aukštą patikimumą, naudojami jų rezerviniai elementai, kurie gali būti įjungiami sugedus šiems pagrindiniams elementams. Rezerviniai elementai gali funkcionuoti skirtinguose režimuose: „karštame“, „šaltame“ arba „šiltame“. Disertacijoje yra nagrinėjamos sistemos su „šiltai“ rezervuotais elementais. Darbe suformuluojama rezervinio elemento „sklandaus įjungimo“ hipotezė ir konstruojami statistiniai kriterijai šiai hipotezei tikrinti. Nagrinėjami neparametrinio ir parametrinio taškinio bei intervalinio vertinimo uždaviniai. Disertacijoje nagrinėjami pakankamai bendri degradacijos modeliai, kurie aprašo elementų gedimų intensyvumą kaip funkciją kiek naudojamų apkrovų, tiek ir degradacijos lygio, kuri savo ruožtu modeliuojama naudojant stochastinius procesus.In doctoral thesis redundant systems and degradation models are considered. To ensure high reliability of important elements of the system, the stand-by units can be used. These units are commuted and operate instead of the main failed unit. The stand-by units can function in the different conditions: “hot”, “cold” or “warm” reserving. In the thesis systems with “warm” stand-by units are analyzed. Hypotheses of smooth commuting are formulated and goodness-of-fit tests for these hypotheses are constructed. Nonparametric and parametric point and interval estimation procedures are given. Modeling and statistical estimation of reliability of systems from failure time and degradation data are considered.
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Buliuolis, Alfonsas. "Širdies ir kraujagyslių sistemos funkcijos mobilizacijos ir atsigavimo ypatybės atliekant anaerobinius krūvius." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20061003_121325-70125.
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Objective of the study was to identify the characteristics of mobilization and recovery of cardiovascular system in performing anaerobic loads. Results obtained during the study revealed that a significant feature of recovery after physical loads is an adequate recovery sequence of functional indices of cardiovascular system. Being in normal functional state the relation between regulatory and supplying systems recovers first of all. Later on recover the indices of regulatory systems and latest – indices of supplying systems. It is pointed out that in the recovery process after repetitive alactatic loads recovery sequence of cardiovascular indices remains unchanged, however, while performing eight lactatic anaerobic bouts, a tendency of emerges showing that overstepping a certain limit a characteristic feature in sequence of recovery of cardiovascular indices disrupts. The influence of concentrated anaerobic heavy training loads used during the training mezocycle on cardiovascular and muscular systems has been estimated. Evaluation of cardiovascular changes during the 60-s all-out vertical jump test (Bosco test) showed that it is a very difficult task and could be used for the assessment of performance abilities only of well-trained athletes. 30-s all-out test in jumping is enough in duration and an accurate estimation of the functional state of cardiovascular system and body functioning during the exercising can be performed.
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Černiauskaitė, Agnė. "Aplinkos apsaugos inspekcijos informacinės sistemos posistemių projektavimas ir programinė realizacija." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050527_112439-60844.
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Nowadays the complexity and size of business systems is growing steadily and, as practise shows, the situation is not going to change in the nearest future. This necessitates difficulties not only for lifecycle of programmes’ development but for maintenance and expansibility also. That’s why, solving them, requires a broader perspective that views the system as consisting of other systems. This work looks what kind of methods can be applied in this context. The analysis of modern technologies (Java programming language) and modelling methods (functional decomposition and object-oriented system engineering) are presented. Suggested system decomposition approach is the synthesis of already existing ones. In this work new method has been applied for the development of experimental Information System of Territorial Departments of Environmental Inspection. The prototype of the mentioned system has been realized by using J2EE (Java 2, Enterprise Edition) technologies. Developed software implements the requirements for usage and maintenance (large number of the users, security rights, compatibility, centralised administration, etc.) of large distributed systems. Suggested approach may be used while expanding the existing software or developing similar applications.
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Fang, Yi-chin. "Performance evaluation of discrete IR optical system." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270211.
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Kim, Hyung Suk. "Tactical EO/IR system for ground forces." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA238050.
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Thesis (M.S. in Systems Engineering (Electronic Warfare))--Naval Postgraduate School, September 1990.Thesis Advisor(s): Milne, Edmund Alexander. Second Reader: Hughes, Wayne Philo. "September 1990." Description based on title screen as viewed on December 29, 2009. DTIC Identifier(s): Infrared detectors, electrooptical detectors, theses. Author(s) subject terms: Electronic warfare, EO/IR system, ground EW system, tactical EW system, Korea. Includes bibliographical references (p. 72-76). Also available in print.
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Agmell, Simon, and Marcus Dekker. "IR-Based Indoor Localisation and Positioning System." Thesis, Linköpings universitet, Fysik och elektroteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158175.
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This thesis presents a prototype beacon-based indoor positioning system using IR-based triangulation together with various inertial sensors mounted onto the receiver. By applying a Kalman filter, the mobile receivers can estimate their position by fusing the data received from the two independent measurement systems. Furthermore, the system is aimed to operate and conduct all calculations using microcontrollers. Multiple IR beacons and an AGV were constructed to determine the systems performance. Empirical and practical experiments show that the proposed localisation system is capable centimeter accuracy. However, because of hardware limitation the system has lacking update frequency and range. With the limitations in mind, it can be established that the final sensor-fused solution shows great promise but requires an extended component assessment and more advanced localisation estimations method such as an Extended Kalman Filter or particle filter to increase reliability.
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Augėnaitė, Justina. "Organinių ir mineralinių junginių migracija ir transformacija modelinėse nejudinto grunto sistemose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_153330-50171.
Full textAbstract:
Darbo tikslas - nustatyti organinių ir mineralinių junginių migracijos ir transformacijos procesus vykstančius nejudinto grunto sistemoje naudojant skirtingus organinių ir mineralinių trąšų kiekius.
Darbo uždaviniai:
nustatyti organinių medžiagų migracijos ir transformacijos procesus nejudinto grunto modelinėse sistemose naudojant skirtingus organinių trąšų kiekius.
nustatyti mineralinių medžiagų migracijos ir transformacijos procesus nejudinto grunto modelinėse sistemose naudojant skirtingus mineralinių trąšų kiekius.
palyginti organinių ir mineralinių trąšų išsiplovimo tendencijas nejudinto grunto modelin����se sistemose.
Darbo objektas: 40 ėminių modelinėse nejudinto grunto karbonatingo sekliai glėjiško išplautžemio moreninės kilmės vidutinio sunkumo molio (Calcari- Epihypogleyic Luvisol) sistemose.
Darbo rezultatai: Po 10 ir 60 parų nuo organinių trąšų panaudojimo, nitratų ir nitritų koncentracijos didžiausios pirmuose sluoksniuose, o po 150 parų, nitratų ir nitritų koncentracijos didžiausios trečiajame modelio sluoksnyje (30 cm). Amonio jonų koncentracija didžiausia po 10 parų nuo organinių trąšų panaudojimo, ypatingai didelė pirmajame grunto sluoksnyje (11,69 mg l-1), o po 60 ir po 150 parų nuo organinių trąšų panaudojimo, amonio jonų koncentracijos sumažėja. Azoto junginių migracija modelyje vyksta lėtai, 0,2 cm/parą greičiu.
Nitratų ir nitritų koncentracijos po mineralinių trąšų panaudojimo didžiausios 2 sluoksnyje (20cm), todėl galima teigti... [toliau žr. visą tekstą]The aim of work was to estimate migration and transformation of nitrogen compounds in the monolit soil systems, after using organic (liquid dung) and mineral fertilizers. Groundwork of research are 40 samples in monolit soil systems (50 cm depth). Results of research shows, that 10 and 60 days after organic fertilizer using the biggest concentration of nitrate and nitrite are in first layer (10 cm) and 150 days after organic fertilizer using the biggest concentration of nitrate and nitrite are in third layer (30 cm). The biggest ammonium concentration is on the first layer (10 cm) 10 days after organic fertilizer using (11,69 mg l-1), but in the end of research the concentration is much smaller, that means migration is slow about 0,2 cm/day. After mineral fertilizer using biggest concentrations of nitrate and nitrite are in second layer (20 cm), it means that migration of mineral fertilizers is about 0,7 cm/day. Depends on used fertilizer amount, bigger fertilizer amount- bigger concentration of fertilizers.
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Ata, Ali. "Wireless IR image transfer system for autonomous vehicles." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FAta.pdf.
Full textAbstract:
Thesis (M.S. in Applied Physics)--Naval Postgraduate School, December 2003.Thesis advisor(s): Gamani Karunasiri, Richard M. Harkins. Includes bibliographical references (p. 31). Also available online.
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Tshikalaha, Takalani Raymond. "Industrial IR based instrumentation area network." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/49990.
Full textAbstract:
Thesis (MScEng) -- Stellenbosch University, 2004.ENGLISH ABSTRACT: Wireless Area Network technology for industrial and factory applications is important for satisfying inflexible (safety-critical) real-time requirements in sometimes harsh environments. Many of these applications involve mobile subsystems and could benefit from recent Wireless LAN technologies replacing the current cable-based systems. An immediate question is how this technology can be used for wireless Area Network systems? An important aspect of this question is the development of time-variable wireless links with good real-time performance. This project will attempt to answer some aspects of this question. The main objective of this thesis is to create a wireless area network for instrumentation purposes, interconnecting various monitoring and control transducers to a central master station. This project focuses on three transmission technologies used for wireless LANs with low power consumption; capable of close range positioning, indoors as well as outdoors. These transmission technologies are Infrared LAN (IrDA), Spread Spectrum LAN and Narrowband Microwave LAN. As a result of the evaluation of the three technologies, an Infrared LAN (IrDA) system was implemented as an area network, utilising an IrLAP protocol (Master and Slave) as a communication protocol. The Master is enabled to monitor and control all slaves interfaced to it.
AFRIKAANSE OPSOMMING: Draadlose netwerktegnologie vir industrietoepassings, is nodig om aan te pas by spesifieke veiligheids- en omgewingstoestande. Baie van hierdie toepassings het betrekking op mobiele substelsels en kan baat by vervanging van bekabeling met onlangse draadlose netwerktegnologie. Die ontwikkeling van sulke netwerke met goeie tydreaksie, is hier belangrik. Die hoofdoel van hierdie tesis is om ’n draadlose areanetwerk te skep vir instrumentasiedoeleindes, wat verskeie monitor-en beheeromsetters aan ’n sentrale meesterstasie sal verbind. Hierdie projek fokus op 3 sulke benaderings, nl. Infrarooi AN (IrDA), Spreispektrum AN en Nouband Mikrogolf AN. Na ondersoek is ’n stelsel gebaseer op IrDA, geimplementeer as areanetwerk, met behulp van die IrLAP protokol. Die meester beheer alle kommunikasie met- en beheeraksies van die buitestasies.
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Švažinskas, Marius. "Mažos įmonės apskaitos sistemos analizė ir įvertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050104_125356-87429.
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The main purpose of this project was to analyze financial activity of chosen small company and to create the appropriate software tool. Using it, data are centralized, collecting and distributing between various subsystems like stocks purchase and storage, price calculation, produce sale and etc. Also here is compared the functionality of separate financial systems, which are adjusted to small companies.
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Jasinskienė, Jolanta. "Kompiuterinių testavimo priemonių analizė, tobulinimas ir taikymas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050105_123855-55291.
Full textAbstract:
This master‘s thesis is analysing the use of computer testing tools in teaching process, also knowledge checking by testing method and possibility to use paperless testing systems in various schools of Lithuania.
In nowadays there is a life – long learning principle in the society. The assessment of students‘ learning attempts and results is an obligatory part of teaching and learning process. Testing is one of the learning process feedback realization methods. Well organized testing and effectively prepared test secures enough objective control (particulary self-control) of knowledge, grips and skills.
The main aim of the work is to analyse testing tools and create an improved programme for testing practical skills.
In the work:
· reviewed features of testing origin and development;
· explored tests types and creation manners;
· analysed made-up testing tools;
· improved tool for testing practical skills.
The programme for testing practical skills became more informative because of accomplished changes. There was realized a possibility to create practical and auditorial tests. Students are able to take practical tests many a time but auditorial tests they can take only once. Students will be able to see tasks in the screen than they take a test. Final evaluation and transitional action values will be displayed after finishing test. The test evaluation system has been toughen up. Mark depends on how and how many times actions have been taken.
The programme will help to... [to full text]
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Valčiukas, Remigijus. "Internetinė matematinio programavimo ir modeliavimo sistema. Sistemos kūrimas ir testavimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120831_111218-71037.
Full textAbstract:
Šio darbo pagrindinis tikslas yra suprojektuoti ir sukurti internetinę matematinio programavimo ir modeliavimo sistemą. Šiam tikslui pasiekti buvo nagrinėjama matematinio programavimo samprata. Atlikta panašių matematinių programavimo sistemų bei matematinių funkcijų bibliotekų, skirtų įvairioms programavimo kalboms, analizė. Identifikuojamos ir nagrinėjamos problemos, kurios iškilo kuriant internetinę matematinio programavimo ir modeliavimo sistemą. Taip pat šiai sistemai parašytos testinės programos su C++, Java, Fortran programavimo kalbomis bei Netlib Repository LAPACK ir QT bibliotekomis. Sukurta sistema palyginta su Mathematica ir Scilab matematinio programavimo sistemomis.The aim of this work is to design and develop web-based mathematical programming and simulation system. For this purpose were analyzed the concept of mathematical programming and performed analysis of similar mathematical programming systems and libraries of mathematical functions for various programming languages. Identified and analyzed the problems that arose in the development of an online mathematical programming and simulation system. Also, written test programs for created system in C++, Java, Fortran programming languages and Netlib Repository LAPACK, QT libraries. The developed system was compared with Mathematica and Scilab mathematical programming systems.
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Ščevinskaitė, Živilė. "Širdies ir kraujagyslių sistemos greitosios ir lėtosios adaptacijos ypatybės sveikatą stiprinančiose pratybos taikant jėgos lavinimo pratimus ir šiaurietišką ėjimą." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140618_232624-12660.
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Darbo tikslas: nustatyti skirtingo pobūdžio sveikatą stiprinančių pratybų (jėgos lavinimo pratimų ir šiaurietiško ėjimo) poveikį širdies ir kraujagyslių sistemos greitosios ir lėtosios adaptacijos ypatybėms.
Darbo metodika: Darbą sudaro šeši skyriai: literatūros apžvalga, tyrimo organizavimas ir metodika, rezultatai, rezultatų aptarimas, praktinės rekomendacijos bei išvados. Tyrimo metodai: elektrokardiografija (EKG), arterinio kraujo spaudimo (AKS) matavimas, Rufje fizinio krūvio mėginys. Buvo atlikti du tyrimai: I tyrimo metu tirta greitosios adaptacijos poveikis širdies ir kraujagyslių sistemai. II tyrimo metu tirta šešių mėnesių trukmės pratybų sporto salėje ir šiaurietiško ėjimo pratybų įtaka širdies ir kraujagyslių sistemai. Tyrimų metu buvo vertinama širdies ir kraujagyslių sistemos funkcija atliekant Rufje fizinio krūvio mėginį. I tyrimo metu dalyvavo 10 tiriamųjų, kuriems buvo taikytas ir šiaurietiškas ėjimas ir pratybos sporto salėje. II tyrime dalyvavo 28 savanoriai, kurie buvo atsitiktine tvarka suskirstyti į dvi grupes. I-jai grupei buvo taikomas šiaurietiškas ėjimas, II-jai grupei buvo taikomos pratybos prie treniruoklių.
Tyrimo išvados: 1. Po pratybų, tiek sporto salėje, tiek po šiaurietiško ėjimo pratybų tiriamiesiems esant santykinės ramybės būsenoje registruojama reikšmingai padidėjęs širdies susitraukimų dažnis (ŠSD), padidėjusios elektrokardiogramos JT/RR santykio reikšmės, ir arterinio kraujo spaudimo rodikliai liudija apie pokrūvinę hipotenziją. Po... [toliau žr. visą tekstą]The aims of the thesis: to identify the properties of different kinds of health enhancing exercises on the cardiovascular system in fast and slow adaptation. Two studies were performed: Study I investigated quick adaptation effects on the cardiovascular system. Study II investigated the effects of six-month exercise at the gym and Nordic walking exercise on cardiovascular system. The studies were evaluated using the Ruffier exercise test. 10 volunteers participated in Study I; they were subjected to Nordic walking and exercise at the gym. Study II involved 28 volunteers who were randomly divided into two groups. Nordic walking was applied to Group I, while fitness exercises were applied to Group II. The findings of the study: 1. After the exercise and the gym, as well as after Nordic Walking exercise in subjects at rest significantly increased heart rates were recorded, also JT / RR ratio values increased , and arterial blood pressure indicators showed post-load hypotension. After the exercise it was observed that the stress transient ischemic functional effects in the myocardium were less expressed. 2. Comparing Nordic walking exercise effects with the effects of exercise at the gym during the sample load, less increased heart rate and systolic blood pressure were observed; significantly higher decrease in diastolic blood pressure, and significantly lower degree of short-term effects of functional ischemic myocardium were recorded. 3. Six-month health-enhancing exercises... [to full text]
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Tripp, Everett. "Interferometric Optical Readout System for a MEMS Infrared Imaging Detector." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/222.
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MEMS technology has led to the development of new uncooled infrared imaging detectors. One type of these MEMS detectors consist of arrays of bi-metallic photomechanical pixels that tilt as a function of temperature associated with infrared radiation from the scene. The main advantage of these detectors is the optical readout system that measures the tilt of the beams based on the intensity of the reflected light. This removes the need for electronic readout at each of the sensing elements and reduces the fabrication cost and complexity of sensor design, as well as eliminates the electronic noise at the detector. The optical readout accuracy is sensitive to the uniformity of individual pixels on the array. The hypothesis of the present research is that direct measurements of the height change corresponding to tilt through holographic interferometry will reduce the need for high pixel uniformity. Measurements of displacements for a vacuum packaged detector with nominal responsivity of 2.4nm/K are made with a Linnik interferometer employing the four phase step technique. The interferometer can measure real-time, full-field height variations across the array. In double-exposure mode, the current height map is subtracted from a reference image so that the change in deflection is measured. A software algorithm locates each mirror on the array, extracts the measured deflection at the tip of a mirror, and uses that measurement to form a pixel of a thermogram in real-time. A blackbody target projector with temperature controllable to 0.001K is used to test the thermal resolution of the imaging system. The achieved minimum temperature resolution is better than 0.25K. The double exposure technique removes mirror non-uniformity as a source of noise. A lower than nominal measured responsivity of around 1.5nm/K combined with noise from the measurements made with the interferometric optical readout system limit the potential minimum temperature resolution. Improvements need to be made both in the holographic setup and in the MEMS detector to achieve the target temperature resolution of 0.10K.
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Vala, Maryam. "Estimation of sparse channels in IR-UWB systems." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121123.
Full textAbstract:
Ultra Wideband (UWB) is a rapidly growing technology for digital wireless communications. UWB utilizes low power, ultra short, pulses and is specifically suited for short-range, high-rate indoor wireless communications as well as fine localization applications. The attractive properties of UWB are a direct consequence of its very wide bandwidth that also implies an extremely high Nyquist sampling rate, so digital processing of UWB signals requires the use of fast and efficient, and therefore, expensive, Analog to Digital Converters. UWB systems are commonly used in indoor environments in which propagation is characterized by long but sparse multipath channels. Multi-path channels cause inter symbol interference (ISI) and introduce distortion to the received signal. To counter the effects of the channel, the channel impulse response must be accurately estimated at the receiver. There are two main estimation approaches for UWB channels: Compressed Sensing (CS)-based and Adaptive Filter (AF)-based. The former combine sampling and compression into a single linear measurement process that operates at sub-Nyquist rate by capitalizingon the sparsity of UWB signals. The latter, uses Least-Mean-Square filtering principles to obtain low complexity channel estimation methods. The problem we consider in this thesisis the estimation of a long sparse multi-path channel in an UWB system. We focus on systems that use Pulse Position Modulation (PPM) that is one of the most commonly used modulation schemes in UWB systems. We review CS and AF based methods and then we propose new AF-type methods specifically for the estimation of sparse multi-path channels with PPM inputs. The main idea behind the proposed methods is to estimate the long channel in sections in order to reduce the computational cost and improve the estimation performance. Finally, we present simulation results showing the superior performance of the proposed algorithms.Ultra Wideband (UWB) est une technologie en croissance rapide de communications numériques sans fil. UWB utilise une faible puissance, ultra court, impulsions et est spécifiquement adapté à courte portée, haut-débit sans fil intérieure communications ainsi que lalocalisation fine applications. Les propriétés intéressantes de UWB sont une conséquence directe de son très large bande passante, ce qui implique également un taux extrêmement élevé Nyquist (taux d'échantillonnage, traitement numérique des signaux UWB requiert l'utilisation de rapide et efficace, et donc, cher, convertisseurs analogiques-numériques. UWB systèmes sont couramment utilisés dans les environnements intérieurs dont la propagation est caractérisé par un long mais clairsemée multipath canaux. Multi-canaux chemincause intersymbol causant des interférences (ISI) et introduire de distorsion du signal reçu. Pour contrer les effets du canal, le canal réponse impulsion doit être estimée avec précision au niveau du récepteur. Il existe deux principales approches estimation pour UWB canaux: Comprimé de télédétection (CS)-fondée et filtre adaptatif (AF)-fondée. L'ancienne moissonneuse-batteuse d'échantillonnage et de compression dans une seule mesure linéaire processus qui fonctionne en sous-fréquence Nyquist en capitalisant sur la faible densité dessign aux UWB. Ce dernier, utilise moins Mean Square filtrage principes pour obtenir une faible complexité canal méthodes d'estimation. Le problème que nous considérons dans cette thèse est l'estimation d'un long sparse multi-chemin canal d'un système UWB. Nous nous concentrons sur les systèmes qui utilisent Pulse Position Modulation (PPM) qui est l'un des plus couramment utilisé schémas de modulation en systèmes UWB. Nous revoir CSet AF fondées sur des méthodes et ensuite nous proposer de nouvelles AF-type méthodes spécifiquement pour l'estimation des sparse multi-chemin canaux avec PPM entrées. L'idée principale derrière les méthodes proposées est d'estimer le long canal en sections afin de réduire les coûts informatiques et améliorer les méthodes d'estimation des performances. Enfin, nous présentons les résultats de simulation montrant la supériorité de la performance des algorithmes proposés.
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Curto, Diogo Micael Repas. "Low-power, highly reliable IR range detection systems." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/18663.
Full textAbstract:
Engenharia Eletrónica e TelecomunicaçõesA e ciência energética e cada vez mais uma preocupação de engenheiros e da população em geral. Em sistemas alimentados a baterias, esta preocupação torna-se mais evidente quando as pessoas interagem com estes diariamente. É então frustrante quando a uma bateria descarregada impossibilita a utilização destes sistemas. Um caso particular de sistemas que muitas vezes são alimentados por baterias são as torneiras automáticas. Estes sistemas necessitam de constante manutenção, quer devido a descarga das baterias, quer devido a falhas na deteção de presença. O princípio de funcionamento destes sistemas baseia-se essencialmente numa deteção por infravermelhos com recurso a um pequeno circuito de ativação de uma electro-válvula. Nesta dissertação foi proposta uma implementação semelhante com algumas alterações. Utilizaram-se técnicas de baixo consumo, algoritmos de deteção por infravermelhos e ainda recolha de energia para aumentar a duração da bateria. Ao usar um microcontrolador para executar as tarefas requeridas, foi adicionada ao sistema alguma inteligência. Foi ainda estudada a possibilidade de tornar o sistema completamente autónomo em termos de geração e consumo de energia. Embora a auto-su ciência não tenha sido alcançada, foram obtidos resultados importantes que poderão contribuir para melhorar o desempenho dos sistemas deste género.
Energy consumption is one of the major concerns amongst engineers and general population. In battery powered systems, when people interact with them in a daily basis, this concern is even more evident. It is frustrating when a depleted battery makes impossible its normal use. A particular case of a battery powered system is the automatic faucet. These need constant maintenance to replace dead batteries and even due to failures in presence detection. The working principle of these systems is essentially based in an infrared detection followed by a activation circuit of an electro-valve. In this dissertation a similar, with some changes, implementation was proposed. The use low-power techniques, infrared detection algorithms and energy harvesting to increase battery duration. By using a microcontroller to perform the required operations, some intelligence was given to the system. It was also veri ed the possibility to make the system self sustainable in therms of energy consumption and harvesting. Although self-sustainability was not achieved, several important results were obtained which can contribute to improve the performance of similar systems.
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Stevens, Gary. "Fibre components and systems for mid-IR applications." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/7290/.
Full textAbstract:
Fibre-optic components and systems are used in a wide variety of industrial, medical and communication applications and can be found in use everywhere in the modern world, from the bottom of the ocean to satellites in orbit. The field of fibre optics has seen rapid growth in the past few decades to become an essential enabling technology. However, much more work is needed to develop components and systems that can work at wavelengths in the short-wavelength infrared (SWIR)/mid-IR part of the spectrum (defined in this work as 1.5 – 4.5).
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Nacas, Mantas. "Automatizuotos balistinės identifikacinės sistemos: problemos ir raidos perspektyvos." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100225_092840-58479.
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Nusikaltimai padaryti panaudojant šaunamuosius ginklus dėl savo pobūdžio ir pavojingumo dažnai sukelia didelį atgarsį visuomenėje. Šių nusikaltimų efektyvesniam išaiškinimui, tyrimo versijų patikrinimui yra būtina operatyvi informacija, kuri yra kaupiama vienoje iš kriminalistinės registracijos sistemos specializuotų įskaitų rūšių – kriminalistinėse kulkų ir tūtelių kolekcijose. Esant nedidelėms kolekcijoms, rankiniu būdu atlikti ginklų, kulkų ir tūtelių patikrinimai pilnai patenkindavo tyrėjų poreikius. Tačiau didėjant kulkų ir tūtelių kolekcijų apimtims, patikrinimų pagal šias kolekcijas skaičiui, legaliai laikomų ginklų skaičiui rankiniu būdu atliekami patikrinimai pagal dideles kulkų ir tūtelių kolekcijas tapo ilgai trunkantys ir tuo pačiu nepakankamai efektyvūs. Vienas iš šios problemos sprendimo būdų yra automatizuotų balistinių identifikacinių sistemų diegimas. Pasaulyje automatizuotos balistinės identifikavimo sistemos buvo pradėtos diegti 1991 metais, o Lietuvoje ji naudojama nuo 2003 metų.
Šiame magistro baigiamajame darbe yra apžvelgiama kriminalistinės registracijos sistema ir jos reikšmė nusikaltimų tyrimui. Analizuojama šaunamojo ginklo identifikavimo samprata, šaunamųjų ginklų paliekami pėdsakai ant kulkų ir tūtelių, jų susidarymo mechanizmas, charakteristikos ir identifikacinė reikšmė. Nagrinėjamos automatizuotos balistinės identifikacinės sistemos „DRUGFIRE®“, „IBIS®“, „TAIS“, „EVOFINDER®“, „ARSENAL“, jų paskirtis, veikimo principai, sandara bei galimybės... [toliau žr. visą tekstą]Crimes committed by the use of firearms by its nature and danger often lead to repercussions in society. Expeditiously handled information, which is stored in one of specialised registers of a forensic registration system – in forensic collections of bullets and shells, is essential for more effective detection of crimes as well as for verification of hypotesis during investigations. Until such collections were not big, manually performed checks of weapons, bullets and shells fully satisfied the needs of investigators. However, the increase in the extent of bullets and shells collections and in the number of checks in these collections led to prolonged and not sufficiently effective manually performed checks of legally held weapons. One of the ways of dealing with this problem is installation of automated ballistic identification systems. Worldwide automated ballistic identification systems were started being installed in 1991, whereas in Lithuania it has been used since 2003. The system of forensic registration and its importance for crime investigation is reviewed in this graduate study. The concept of firearm identification as well as firearms traces left on bullets and tubes also the mechanism of its formation, characteristics and identification value are analyzed. The automated ballistic identification systems „DRUGFIRE®", "IBIS®", "TAIS", "EVOFINDER®“, „ARSENAL“, their objectives, principles of operation, structures and their potential are analyzed. The bullets and... [to full text]
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Kubilius, Adomas. "Sporto organizacinės ir valdymo sistemos tobulinimo galimybės Prienų ir Jonavos rajonuose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120621_115008-88562.
Full textAbstract:
Raktiniai žodžiai: sporto sistema, valdymas ir organizavimas, tobulinimas, Prienų rajonas, Jonavos rajonas.
Darbo objektas. Sporto organizacinės ir valdymo sistemos tobulinimo galimybės Prienų ir Jonavos rajonuose.
Darbo problema: kokios yra galimos sporto sistemos valdymo ir organizavimo tobulinimo galimybės lyginant Prienų ir Jonavos rajonų sporto sistemas?
Darbo tikslas: ištirti sporto organizacinės ir valdymo sistemos tobulinimo galimybes ir jas palyginti Prienų ir Jonavos rajonuose.
Darbo uždaviniai:
1. Atlikti sporto sistemos pasaulyje ir Lietuvoje formavimosi, administravimo ir tobulinimo teorinę analizę.
2. Atlikti sporto sistemos valdymo ir organizavimo tobulinimo galimybių analizę Prienų rajone.
3. Atlikti sporto sistemos valdymo ir organizavimo tobulinimo galimybių analizę Jonavos rajone.
4. Palyginti sporto sistemų valdymo ir organizavimo tobulinimo galimybes Prienų ir Jonavos rajonuose.
Darbo metodai:
1. Mokslo literatūros analizė.
2. Lyginamoji analizė.
3. Interviu.
Išvados.
1. Sporto sistema yra reikšminga kiekvienos valstybės veiklos sritis, įtakojanti visuomenės kūno kultūrą, skatinanti ekonominių ir socialinių veiksnių vystymąsi. Sporto sistema turi būti administruojama taip, kad teiktų ne tik teorinę, bet ir praktinę naudą. Lietuvos Respublikos vykdoma kūno kultūros ir sporto sistemos politika bei strategija atitinka jai keliamus reikalavimus, tačiau joje visuomet galimi ir reikalingi pokyčiai, kurie užtikrintų visapusišką sporto sistemos... [toliau žr. visą tekstą]Opportunities of sports systems management and organizational development in Prienai and Jonava regions Key words: sports system, management and organization development, opportunities, Prienai, Jonava. Object of this Paper: Opportunities of sports system management and organization development in Prienai and Jonava districts. Problem of this Paper: what are possible opportunities of sports systems management and organizational development in Prienai and Jonava districts? Aim of this Paper: to investigate opportunities of management and organization development of sports systems and to compare them within Prienai and Jonava districts. Tasks of this Paper: 1st – to perform theoretical analysis about essence of Lithuanian and world sport systems formation, administration and improvement, sport systems influence to society and its improvement needs. 2nd – to perform opportunities of sport system management and organization development in Prienai district. 3rd - to perform opportunities of sport system management and organization development in Jonava district. 4th – to compare opportunities of sport system management and organization development in Prienai and Jonava districts. Working methods: 1. Analytical Review of Literature 2. Comparative analysis. 3. Interview. Conclusions. 1. Sport system is important sphere in each state activities affecting physical culture of society, promoting development of economic and social factors. Sports system must be managed in the... [to full text]
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Sukhahuta, Rattasit. "Information extraction system for Thai documents." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368173.
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Ata, Ali. "Wireless IR Image Transfer System for Autonomous Vehicle." Thesis, Monterey, California. Naval Postgraduate School, 2003. http://hdl.handle.net/10945/45365.
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Approved for public release; distribution is unlimitedA wireless IR image transfer mechanism was developed and tested for eventual employment on the NPS autonomous ground vehicle. Tests were conducted inside a building as a rough simulation of an urban environment. Two common ISM frequency bands were explored. Experiments results proved that the 915 MHz band was best suited for this effort. Data revealed that minimal signal loss occurs at Line of Site out to several hundred meters. Signal loss through obstructions: Cement, wood, and metal proved significant, on the order of 10 –15 dB per obstruction. But the image transfer was successful through multiple obstructions at range of 400 meters. Further work includes integration into the autonomous vehicle and testing of the performance.
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Asdoorian, Mark 1975. "Data manipulation services in the Haystack IR system." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46207.
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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.Includes bibliographical references (p. 103-105).
by Mark Asdoorian.
S.B.and M.Eng.
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Stankevičiūtė, Odeta. "Atvirų elektroninių išteklių kūrimo ir panaudojimo skatinimas akademinėje institucijoje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110902_091432-73703.
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Kauno kolegijoje yra patvirtinta ir vykdoma nauja e. mokymosi plėtros programa 2009-2013m. Pagal ją Kauno kolegija orientuojasi į atvirą e. mokymąsi, todėl atviras elektroninių išteklių kūrimas, panaudojimas bei talpinimas yra vienas iš pagrindinių šios programos tikslų. Taigi šiame darbe pateikiama: informacija apie atvirus elektroninius išteklius, jų nauda tiek studentui, tiek dėstytojui, tiek institucijai, atvirų elektroninių išteklių kūrimo ir panaudojimo proceso Kauno kolegijoje analizė, atvirų elektroninių išteklių talpinimo programinių įrankių integravimo projektas, sumodeliuotas UML kalba, vartotojo instrukcija. Parengus šį darbą paaiškėjo, kad minėtų programinių įrankių integravimas yra reikalingas ir kad tai tikrai skatintų vartotojus kurti, talpinti bei naudoti atvirus elektroninius išteklius, taip pat buvo surengti mokymai maždaug šimtui vartotojų, ir buvo parengta dalis dokumentų, reglamentuojančių atvirų elektroninių išteklių talpinimo veiklas bei institucinė licencinė sutartis, skirta autorių teisėms apsaugoti.Kauno kolegija (Kaunas University of Applied Sciences) has adopted and implemented e-Learning Development Program for 2009-2013. One of the key components of the program is orientation to the open e-Learning, so the main tasks are the promotion of the development and use of open educational resources and storage of such resources. Thus, the aim of this work is to promote the development and use of open educational resources by preparing the integration project of Open Journal system, Open Conference System and DSpace systems, by organizing the training courses for users, also by preparing the documents regulating the activities of the hosting of open educational resources. In this document are presented: the information about open educational resources, their advantage for all – student, lecturer and institution, the analysis of the situation of the development and use of open educational resources in Kauno kolegija (Kaunas University of Applied Science), the project of integration of Open Journal System, Open Conference System and DSpace systems, modeled using UML language, and also a short user manual. After the completion of this work revealed that such integration project of the above-mentioned systems was necessary and it would really promote users to develop, load and use open educational resources, also there were organized training courses for about one hundred users, alike there were prepared a part of the documents regulating the activities of hosting open... [to full text]
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Klimavičiūtė, Erika. "Tarpusavio sinchronizacijos sistemos matematinio modelio sudarymas ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060606_212443-61517.
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SUMMARY There are numerous methodologies available in solving the problem in synchronizing timing oscillators of the communication networks: pleziosynchronization, forced synchronization or mutual synchronization. In the presented work the mutual synchronization system composed of four oscillators is analyzed. The mathematical model of the synchronization system is matrix differential equation with delayed argument. Applying the method of “steps” and Laplace transform we find the solution of the matrix differential equation and the step responses matrix of the synchronization system. Exact analytical and graphical expressions of transition functions and exact expressions of the phase differences between signals of oscillators of this synchronization system are obtained.
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Gečaitė, Auksė. "Gyvenamosios aplinkos mažuose miesteliuose tyrimas darnos ir gyvenimo kokybės aspektais." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_174748-91264.
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Baigiamajame darbe buvo nagrinėjama darnaus vystymosi ir gyvenimo kokybės sąvokų bei jų vertinimui naudojamų rodiklių, tyrimų metodų įvairovė. Remiantis atliktų apklausų bei taikyto ekspertinio metodo rezultatais buvo sukurtas bendras mažų miestelių gyvenamosios aplinkos tyrimams tinkantis prioritetinis vertinimo modelis. Naudojantis daugiakriterinio metodo SAW rezultatais ArcGIS programos aplinkoje buvo pavaizduotas gyvenimo kokybės bei gyvenamosios aplinkos lygis tiriamo miestelio skirtingose dalyse (toks vaizdavimas atskleidžia problemiškiausias miestelio puses bei parodo, į kokius rodiklius reikia atkreipti didžiausią dėmesį). Pateikiami galimi sprendimo būdai gyvenimo kokybės pagerinimui. Darbą sudaro analitinė ir grafinė dalys. Analitinę dalį sudaro 76 psl. be priedų, 39 paveikslai, 9 lentelės, 5 priedai, 51 panaudotas literatūros ir informacinis šaltinis. Grafinę dalį sudaro 3 brėžiniai: Kaltinėnų miestelio esamos būklės brėžinys M 1:5000, Kaltinėnų miestelio gyvenamosios aplinkos įvertinimo brėžinys (Esama būklė) M 1:5000, Kaltinėnų miestelio gyvenamosios aplinkos įvertinimo brėžinys (Sprendiniai) M 1:5000.Sustainable development and living quality concepts, research methods and indicators used for their assessment is being analyzed by this thesis. On the basis of conducted surveys and expert method results a priority assessment model suitable for small town residential environment research was developed. While using the multicriterial SAW method results the quality of living and residential environment level was graphically shown in ArcGIS (this drawing provides data about the most problematic parts of the towns and shows which indicators should be given the most attention). The possible solutions for life quality improvement are given. The analytical part consists of 76 pages without annexes, 39 pictures, 9 tables, 5 annexes and 51 literature sources were used. The graphical part consists of 3 plans: The plan of the present situation of Kaltinenai M 1:5000, The plan of the residential environment assessment of Kaltinenai (Present situation) M 1:5000, The plan of the residential environment assessment of Kaltinenai (Solutions) M 1:5000.