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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
231

Exploring Metal-Ligand Interactions of Pyrrole Based Pincer Ligands

Maaß, Christian 16 October 2013 (has links)
No description available.
232

Estudio teórico de nucelobases: Implicaciones estructurales en ácidos nucleicos.

Cubero Jordà, Elena 14 December 2001 (has links)
Esta tesis recoge el estudio teórico de algunos de los más importantes tipos de interacciones débiles no covalentes en el ADN. Los sistemas de estudio van desde bases nitrogenadas y nucleósidos en fase gas hasta los ácidos nucleicos en solución. Concretamente se trataran las interacciones débiles pi-catión y los contactos entre bases con el objetivo de profundizar en su naturaleza. Dentro de las interacciones entre bases podemos diferenciar entre: (i) las interacciones de puente de hidrógeno impropio, (ii) las interacciones con bases modificadas, como la 8-aminoinosina y el difluorotolueno, y finalmente (iii) las interacciones no canónicas: Hoogsteen y Watson-Crick reverso, que pueden dar lugar a nuevas estructuras secundarias del ADN. Se utilizan todo un conjunto de técnicas teóricas que van desde la mecánica clásica hasta los más elevados niveles de mecánica cuántica, con la finalidad de aportar la máxima información estructural, reactividad y dinámica que complemente así los datos experimentales disponibles sobre las nucleobases y los ácidos nucleicos.En la primera parte de la presente tesis se describirán los métodos teóricos empleados para caracterizar las interacciones no covalentes. En la segunda parte se detallarán brevemente la estructura y las propiedades de los ácidos nucleicos. A continuación, se presentarán los resultados de las interacciones estudiadas. Y finalmente, se procederá a la discusión de los resultados obtenidos y a las conclusiones.
233

Study of B to rho pi decays with the Belle detector

Gordon, Ascelin January 2004 (has links) (PDF)
This thesis presents an investigation of the charged B meson decay to the pseudoscalar-vector final state p°π±..The results presented in this thesis have been published in Physics Letters B, Volume 542, Issues 3-4, 29 August 2002, Pages 183-192.
234

A formal fault model for component based models of embedded systems

Fischer, Marco January 2006 (has links)
Zugl.: Chemnitz, Techn. Univ., Diss., 2006
235

Entwurf von Verkopplungsregelungen mittels dynamischer Ausgangsrückführung

López Pamplona, Alejandro January 2008 (has links)
Zugl.: Darmstadt, Techn. Univ., Diss.
236

Relations in models of calculi and logics with names /

Yemane, Kidane, January 2006 (has links)
Diss. Uppsala : Uppsala Universitet, 2006.
237

Phaseneigenschaften von pentakoordinierten 18-e-d8-Übergangsmetall-p-Allyl-Komplexen [18-e-d-8-Übergangsmetall-Pi-Allyl-Komplexen]

Creusen, Charlotte M. January 2009 (has links)
Zugl.: Saarbrücken, Univ., Diss., 2009
238

Point spread function engineering in fluorescence spectroscopy

Schönle, Andreas. Unknown Date (has links) (PDF)
University, Diss., 2003--Heidelberg.
239

Uppkopplade Sensorer / Connected Sensors

Karlsson, Daniel, Eriksson, Jesper January 2018 (has links)
Internet of Things blir allt mer vanligt i hemmet. På senare år har utbudet av uppkopplade enheter som hjälper till att automatisera delar av hemmet ökat. Uppkopplade sensorer är en del av detta och de erbjuder övervakning av till exempel temperatur, luftfuktighet, rörelse och ljus. Genom att presentera mätvärden från sensorer via ett grafiskt gränssnitt har man möjligheten att agera — manuellt eller automatiskt — på dessa värden för att till exempel justera temperatur i god tid. Målet med detta arbete är att utveckla en IoT-produkt som ett sensornätverk för övervakning av mätvärden från sensorer på enkortsdatorn Raspberry Pi. Syftet är att skapa ett skalbart system med en modulär design. Två Raspberry Pi användes för att utveckla ett IoT-system där en enhet läser in mätvärden från sensorer och en annan enhet exponerar ett REST API som möjliggör kommunikation via HTTP-protokollet för att skicka och ta in mätvärden. Mätvärden lagras i en databas och de senaste mätvärdena presenteras i ett grafiskt användargränssnitt. Resultatet är ett sensornätverk med en modulär design som kan användas för att övervaka senast uppmäta värden av temperatur och luftfuktighet i omgivningen. Dessa värden presenteras i ett grafiskt gränssnitt. / Internet of Things is becoming more common in the home. In recent years, the availability of connected devices that help automate parts of the home has increased. Connected sensors are part of this and they offer monitoring of, for example, temperature, humidity, motion and light. By presenting measurment values from sensors via a graphical interface, you have the option to act — manually or automatically – on these values, to for example, adjust the temperature in good time. The aim of this report is to develop an IoT product as a sensor network to collect data from sensors connected to the single board computer Raspberry Pi. The purpose is to create a scalable system with a modular design. Two Raspberry Pi were used to develop an IoT system where a device collects measu- rement values from sensors and another device which exposes a REST API that enables communication through the HTTP-protocol to send and recieve data. Measurment values are stored in a database and the latest measurement values are presented in a grahpical user interface. The result is a sensor network with a modular design that can be used to collect humi- dity and temperature values in the enviroment. These values are presented in a graphical user interface.
240

Utilização de um aparelho de eletroencefalografia na domótica

Creste, Guilherme de Almeida Silva January 2017 (has links)
Orientador: Jose Luiz Rybarczyk-Filho / Resumo: Este trabalho visa melhorar a qualidade de vida de pessoas que tenham algum tipo de dificuldade física ou motora, com foco nas tarefas comuns de um ambiente residencial. Para tanto, foi desenvolvido um sistema que apresenta uma interface web capaz de interpretar os comandos capturados por um neuroheadset e efetuar a comunicação entre alguns dispositivos que estejam ao redor do usuário do sistema. O processamento do sinal é feito por um computador e um Raspberry Pi é utilizado para interagir com os dispositivos. Para o controle do sistema, o neuroheadset possui um giroscópio que é utilizado para capturar os movimentos da cabeça do usuário do sistema. Esses movimentos são traduzidos em coordenadas na tela do computador, utilizando os eixos X e Y como referência. Dessa forma, o usuário consegue movimentar o mouse do computador com os movimentos da cabeça. Para acionar o clique, na interface web o usuário tem três opções: via temporizador (3 segundos), via clique sendo acionado pelo duplo piscar dos olhos por 2 vezes consecutivas e, finalmente, pela atividade cerebral simulando um clique também. Vale salientar que o usuário pode interagir com o sistema operacional normalmente, ou seja, ele pode clicar em qualquer opção que aceite ser clicada do sistema operacional. Isso expande as capacidades do sistema para uma quantidade maior de aplicações, sendo possível por exemplo: navegar na internet, escrever via teclado virtual, dentre outras possibilidades. Para validar a capacidade de ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: This work aims to improve the quality of life of people who have some kind of difficulty physical or motor skills, focusing on the common tasks of a residential environment. For that, it was developed a system that presents a web interface capable of interpreting the commands captured by a neuroheadset and communicate between some jam around the system user. The processing of the signal is done by a computer and a Raspberry Pi is used to interact with the devices. For system control, the neuroheadset has a gyroscope that is used to capture the movements of the head the system user. These movements are translated into coordinates on the computer screen. using the X and Y axes as reference. In this way, the user can move the computer mouse with the movements of the head. To activate the click, in the interface The user has three options: via timer (3 seconds), via double blink of the eye for 2 consecutive times and, finally, for simu- clicking. It is worth noting that the user can interact with the operating system usually, that is, it can click on any option that accepts to be clicked from the operating system rational. This expands the capabilities of the system to a greater number of applications, It is possible, for example, to surf the internet, to write via the virtual keyboard, opportunities. In order to validate the user’s interaction and control capacity with the system, developed a series of tests that aim to measure the performance of users in the 3 large areas of re... (Complete abstract click electronic access below) / Mestre

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