This dissertation proposes a new starting profile with some modifications to the definition of American National Standards Institute (ANSI) to interpret the starting process of fluorescent lamps driven by high- frequency electronic ballasts. To identify the times of preheating, ignition, and steady-state, the staring transient waveforms of lamp voltages as well as the lamp currents are scrutinized from the experiments on a diversity of ballasting techniques. A glow-to-arc transition is considered to account for the stage between glow discharging and a stable lamp arc. In addition, the filament preheating is not limited to the constant voltage but can be current preheating which is more commonly used in commercial products. By the new definition, the glow current and the glow-to-arc current can be calculated to evaluate the lamp starting performance. The applicability of the starting profile is confirmed experimentally by the instant-start, preheat-start, rapid-start, modified rapid-start, and programmable rapid-start schemes.

This thesis focuses on design of printed circuit board and programming of ESP32 module. This module communicates with discharging circuit which allows testing of battery properties. With help of voltage and current sensors it is possible to test and print results of battery on display. The testing device also allows control over web user interface thanks to ESP32.

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Bakgrund: Andelen av befolkningen som blir äldre och multisjuka ökar i samhället. När dessa personer vårdas på sjukhus är problemen ofta komplexa. Många som skrivs hem behöver fortsatt hälso-och sjukvård i hemmet och distriktssköterskan blir då omvårdnadsansvarig. De arbetar bland annat med att tillgodose behov av trygghet, kontinuitet och samordning samt ansvarar för säkerheten i den vården som bedrivs. Syfte: Syftet är att belysa distriktssköterskors erfarenheter av sköra äldres utskrivning från sjukhus till kommunal primärvård i hemmet. Metod: En kvalitativ intervjustudie användes där data samlades in genom semistrukturerade intervjuer med tio distriktssköterskor. Data analyserades enligt kvalitativ innehållsanalys. Resultat: Resultatet presenteras i två kategorier; Framgångsfaktorer för en säker utskrivningsprocess samt Hinder för en trygg och säker hemgång, med sju tillhörande underkategorier. För att säkerställa trygga hemgångar krävs god planering, ett gott samarbete, tydlig dokumentation och information. Hinder för en lyckad utskrivning är användandet av olika journalsystem, tidsbrist och hög arbetsbelastning Konklusion: För att upprätthålla patientsäkerheten vid utskrivning av sköra äldre är samarbete och god kommunikation nödvändig. Distriktssköterskor i kommunal primärvård har en viktig samordnande roll och behöver säkerställa god och säker vård när patienten kommer hem. / Background: The number of elderly people with multiple diseases is increasing in society. When these people are treated in hospital, the problems are often complex. Many of those who are sent home need continued healthcare at home, and the district nurse then becomes the responsible nursing manager. District nurses work for the safety and satisfaction of elderly people and work in teams to provide a safe care for the patients. Aim: To shed light on district nurses' experiences of frail elderly being discharged from hospital to municipal primary care at home. Method: A qualitative interview study was used where data was collected through semi-structured interviews with ten district nurses. Data were analyzed according to qualitative content analysis. Findings: The results are presented in two categories; Successfactors for a safe dischargeprocess and Obstacles for a safe and secure return home, with seven associated subcategories. To ensure safe returns home, good planning, good cooperation and clear documentation of medicines and continued care are required. Obstacles to a successful discharge are the use of different medical record systems, lack of time and a heavy workload. Conclusion: To maintain patient´s safety when discharging frail elderly, cooperation and good communication are necessary. District nurses in municipal primary care have an important coordinating role and need to ensure good and safe care when the patient returns home.

Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2017-07-12T21:44:11Z No. of bitstreams: 1 PGCA_Dissertacao_Fabio.pdf: 17456050 bytes, checksum: 0e14f30b37a0f91b865c29f80d2ff377 (MD5) / Made available in DSpace on 2017-07-12T21:44:11Z (GMT). No. of bitstreams: 1 PGCA_Dissertacao_Fabio.pdf: 17456050 bytes, checksum: 0e14f30b37a0f91b865c29f80d2ff377 (MD5) Previous issue date: 2016-08-18 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / There are presently market a wide range of batteries. These batteries come to meet the need of electric power supply for electronic devices unable to be connected to a source of electricity for a certain period of time. For this to happen, a battery goes through a cycle involving a charge period and a discharge period. Another point to be noted is that the vast majority of applications that utilize lead acid batteries have a supply voltage above 2 volts, the voltage which is provided by a single cell. For higher voltages, it is necessary to link various cells in series. According to manufacturers of lead acid batteries, if loading and unloading are carried out in accordance with the specifications provided for the product, ensures the maximum utilization of battery life, but failure to comply with these specifications can shorten the life of a battery lead acid in more than 50%. Given the above, this paper describes the design of a system to charge control, discharge control and load balancing for lead acid batteries for better efficiency and maximum utilization of the useful life of the batteries. / Atualmente, existe no mercado uma grande gama de baterias. Estes acumuladores v?m para suprir a necessidade de fornecimento de energia el?trica para dispositivos eletroeletr?nicos impossibilitados de serem conectados a uma fonte geradora de energia el?trica por um determinado per?odo de tempo. Para que isso aconte?a, uma bateria passa por um ciclo que envolve um per?odo de carga e um per?odo de descarga. Outro ponto a ser observado ? que a grande maioria das aplica??es que utilizam baterias de chumbo ?cido possuem tens?o de alimenta??o superiores a 2 volts, que ? a tens?o fornecida por uma ?nica c?lula. Para obter tens?es maiores, faz-se necess?ria a liga??o de v?rias c?lulas em s?rie. Segundo os fabricantes das baterias de chumbo ?cido, se forem realizadas cargas e descargas em conformidade com as especifica??es fornecidas para o produto, garante-se o aproveitamento m?ximo da vida ?til da bateria, mas a inobserv?ncia destas especifica??es pode diminuir a vida ?til de uma bateria de chumbo ?cido em mais de 50%. Diante do exposto, este trabalho descreve o projeto de um sistema para controle de carga, controle de descarga e balanceamento de carga para baterias de chumbo ?cido que garanta uma melhor efici?ncia e o m?ximo aproveitamento da vida ?til destas baterias.

O objetivo desta dissertação é analisar o instituto da obrigação propter rem à luz do direito positivo brasileiro. Com isso, pretende-se fornecer uma descrição dogmaticamente coerente do instituto. Para atingir esse objetivo, foram analisadas categorias jurídicas que, em sede de obrigação propter rem, são controvertidas, entre as quais, destacam-se a renúncia e o abandono liberatório / The aim of this dissertation is to analyze the institute of the propter rem obligation through the light of the Brazilian positive Law. With that, it intends to provide a dogmatically consistent description of the institute. To achieve this goal, there were analyzed legal categories that, in place of propter rem obligation, are issued; including, the waiver and the discharging relinquishment that are stood out.

Cette thèse présente des résultats obtenus dans deux domaines : la théorie des langages, et la théorie des graphes. En théorie des langages, on s’intéresse à des problèmes de caractérisation de classes de langages réguliers. Le problème générique consiste à déterminer si un langage régulier donné peut être défini dans un certain formalisme. Les méthodes actuelles font intervenir un problème plus général appelé séparation. On présente ici deux types de contributions : une généralisation d’un résultat de décidabilité au cadre des langages de mots infinis, ainsi que des bornes inférieures pour la complexité du problème de séparation. En théorie des graphes, on considère le problème classique de coloration de graphes, où on cherche à attribuer des couleurs aux sommets d’un graphe de sorte que les sommets adjacents reçoivent des couleurs différentes, le but étant d’utiliser le moins de couleurs possible. Dans le cas des graphes peu denses, la méthode de déchargement est un atout majeur. Elle a notamment joué un rôle décisif dans la preuve du théorème des quatre couleurs. Cette méthode peut être vue comme une construction non conventionnelle d’un schéma de preuve par induction, spécifique à la classe de graphes et à la propriété considérées, et où la validité du schéma est rarement immédiate. On utilise des variantes de la méthode de déchargement pour étudier deux types de problèmes de coloration. / In this thesis, we present results obtained in two fields: formal language theory and graph theory. In formal language theory, we consider some problems of characterization of classes of regular languages. The generic problem consists in determining whether a given regular language can be defined in a fixed formalism. The current approaches use a more general problem called separation. We present here two types of contributions: a generalization of a decidability result to the setting of infinite words, together with lower bounds for the complexity of the separation problem. In graph theory, we consider the classical problem of graph coloring, where we assign colors to vertices of a graph in such a way that two adjacent vertices receive different colors. The goal is to use the fewest colors. When the graphs are sparse, a crucial tool for this is the discharging method. It is most notably decisive in the proof of the Four-Color Theorem. This method can be seen as an unconventional construction of an inductive proof scheme, specific to the considered problem and graph class, where arguing the validity of the scheme is rarely immediate. We use variants of the discharging method to study two types of coloring problems.

O objetivo desta dissertação é analisar o instituto da obrigação propter rem à luz do direito positivo brasileiro. Com isso, pretende-se fornecer uma descrição dogmaticamente coerente do instituto. Para atingir esse objetivo, foram analisadas categorias jurídicas que, em sede de obrigação propter rem, são controvertidas, entre as quais, destacam-se a renúncia e o abandono liberatório / The aim of this dissertation is to analyze the institute of the propter rem obligation through the light of the Brazilian positive Law. With that, it intends to provide a dogmatically consistent description of the institute. To achieve this goal, there were analyzed legal categories that, in place of propter rem obligation, are issued; including, the waiver and the discharging relinquishment that are stood out.

This Master’s thesis deals with a monitoring of the temperature influence on Li-ion batteries, literature search of this topic and proposal of experiments. First chapter contains the theory of evolution and fundamentals of the Li-ion batteries. Planned experiments with flow charts and block diagrams are described in the second chapter. The work station is explained along with a description of the execution of the experiments in the third chapter. The experiments are analyzed and results explained in the last chapter.