The diploma thesis follows up on the bachelor thesis and deals with the issue of light-transmitting concrete LTC. The aim of thesis determines the transparency and its decrease due to durability. The terotical part deals with extension of LTC issues and follows up reserch from bachelor thesis. The teory is also focused on the issue of glass optical fibers. The experimental part deals with the influence of selected durability test on transparency of LTC. Transparency is determined by mesuring devise called black box. In the conclusion is summarized influences witch affects transparency and evaluation of whether the selected fibers are suitable for outdoor use.

The Enlightenment did not end with the French Revolution but extended into the nineteenth century, effecting a transformation to modernity. By 1850, science became increasingly institutionalized and technology hastened transmission of cultural exchange. Restricting Enlightenment to solitary movements, philosophic text, or national contexts ultimately creates insular interpretations. The Enlightenment was instead a transnational phenomenon, of interconnected communities, from diverse geographical and cultural spaces. A revealing example is the Delessert family. Their British-Franco-Swiss network demonstrates the uniqueness, extent, and duration of the Enlightenment. This network’s origins lie in the 1680s. French and British desires for stability resulted in contrasting policies. Toleration, through partial rights, let British Dissenters become leading educators, manufacturers, and natural philosophers by 1760. Conversely, Huguenots were stripped of rights. Thousands fled persecution, and France’s rivals profited by welcoming waves of industrious Huguenots. French refugee communities became vital printing centres, specializing in Enlightenment attacks on the Ancien régime, and facilitated the expansion of the Delessert network. The Delessert banking family made a generational progression from Geneva to Lyon to Paris, linking them to Jean-Jacques Rousseau. His friendship fostered passions for botany and education. The Delesserts parlayed this into participation in Enlightenment science and industry, connecting them to the Lunar Society, Genevan radicals, and British reformers. By 1780, a transition toward modernity began. Grand Tours shifted from places of erudition to practical sites of production. Lunar men sent sons to the Continent for practical education, as Franco-Swiss visited English manufactories and Scottish universities to expand knowledge. Moderates greeted the French Revolution with enthusiasm. In the early 1790s this changed significantly. Royalist mobs threatened Lunar men, destroying property, in Birmingham. In France, moderates tried to defend the monarchy from republican mobs. Even so, the network, fragmented both by revolution and war, continued espousing reform and assisting members who were jailed, endangered, or escaping to America. The Delessert network reconnected in 1801. Franco-Swiss toured Britain as Britons visited Paris, gathering at the hôtel Delessert, a crossroads of the Enlightenment. New societies encouraged science, industry, and philanthropy. Enlightenment exchange continued, despite warfare, into the nineteenth century. Industrial partnerships and scientific collaborations, formed during the peace, circumvented trade barriers. Over three generations (1760-1850) cosmopolitanism helped usher in a transition to modernity. Ultimately, the Delessert network’s endurance challenges traditional interpretations of the Enlightenment, and the Industrial Revolution.

Le nanotube de carbone double parois représente le cas idéal pour étudier la nature de l'interaction entre parois des tubes multiparois. En partant d'échantillons dispersés de DWNTs synthétisés par CVD, nous avons pu, grâce à la microscopie électronique en transmission haute résolution (METHR), établir une procédure robuste de détermination structurale des configurations. Il apparaît alors que certaines configurations structurales sont privilégiées alors que d'autres sont interdites, mettant en évidence les effets du couplage interparoi. À partir de simulations Monte Carlo réalisées sur des DWNTs de configurations interdites, nous avons montré que le tube interne modifie sa structure pour atteindre une stabilité énergétique, ce que nous avons pu rapprocher d'observations expérimentales. Pour étudier les propriétés électroniques des DWNTs observés expérimentalement, nous avons corrélé les techniques de METHR et d'absorption optique pour analyser des populations différenciées de tubes en nombre de parois, diamètre et nature électronique, grâce à la technique DGU (Ultracentrifugation de Gradient de Densité). À l'issue de trois tris successifs, nous avons pu isoler une population de tubes double parois pure à 95% et dont les tubes extérieurs sont de nature semi-conducteur à 90\%. / Double-walled carbon nanotube represents the ideal case to investigate the nature of the interaction between walls of multiwall tubes. Starting with scattered samples of DWNTs synthesized by CVD, we have established a robust procedure for structure determination of configurations based on high resolution electron microscopy transmission (HRTEM). After achieving a statistical study, it appears that some structural configurations have been favored while others are completely forbidden, highlighting the effects of inter-wall coupling. To go beyond, we have performed Monte Carlo simulations at atomic scale on DWNTs with forbidden configurations. As a result, we have shown that the inner tube changes its structure to achieve energy stability, in good agreement with experimental observations. To study the electronic properties of DWNTs observed experimentally, we correlated HRTEM and optical absorption techniques for analyzing differentiated tubes populations by number of walls, diameter and electronic nature, thanks to the technical DGU (Density Gradient Ultracentrifugation ). After three successive sorting, a pure population of double-walled tubes to 95% and of which 90% of the outer tubes are semiconductor has been isolated.

Projektarbetsformen blir allt vanligare samtidigt som fler och fler organisationer arbetar i projektform. Inom dessa multiprojektmiljöer bör man kontinuerligt säkerställa att kunskap och erfarenheter förs vidare mellan olika projekt för att bli framgångsrik inom sin marknad. Trots att fördelarna med kunskapsöverföring länge erkänts i projektbaserade organisationer så varierar effektiviteten kring fenomenet. Detta tros bland annat bero på svårigheterna med att gå från teori till praktik samt att de modeller och teorier som finns saknar struktur för själva genomförandet. Efter ett försök att kartlägga litteraturen inom detta mångfacetterade fält hittade vi en kunskapslucka angående hur kunskapsöverföring kan te sig inom tv-branschen. Därfär har en kvalitativ fallstudie gjorts på ett tv-produktionsbolag. Studien syftar till att bidra till ökad förståelse kring hur kunskap överförs mellan projekt samt hur man säkerställer kunskapsöverföring. Studien utgår ifrån att kunskap definieras enligt Nonaka och Takeuchis (1995) teori om implicit och explicit kunskap. Studien bygger på kvalitativ forskning i form av sex intervjuer med projektledare och VD, två fokusgrupper med tio projektanställda samt en dokumentanalys på överlämningar skrivna av projektdeltagare. Resultatet visar att det finns många olika typer av kunskapsöverföring inom organisationen. Den kunskap som överförs mellan projekt i organisationen är mestadels kunskap med explicit karaktär i form av dokument. I dagsläget är det huvudsakligen projektledarna som ansvarar för att kunskapsöverföring sker mellan projekt, i huvudsak genom att uppmana projektdeltagare att göra skriftliga överlämningar. Hos projektdeltagarna finns det god vilja att bidra till kunskapsöverföringen men organisationen saknar en huvudsaklig strategi. Slutsatserna konstaterar att ledningen bör implementera ett systematiskt arbetssätt angående organisationens kunskapsöverföring för ett effektivt arbete mot ett organisatoriskt lärande. Slutsatserna belyser även att synen på kunskap är mångtydig och att det handlar om mer än bara explicit och implicit kunskap. För att diskussionen om kunskapsöverföringen inom organisationen ska kunna utvecklas måste organisationen identifiera kunskapstyperna ytterligare samt förstå dessa för att konkretisera dem. / Project work is becoming more common as more and more organizations are working in project form. Within these multi-project environments, one should continuously ensure that knowledge and experience are passed on between different projects in order to be successful in their markets. Although the benefits of knowledge transfer have long been recognized in projectbased organizations, the effectiveness of the phenomenon varies. This is believed to be due, among other things, to the difficulties in moving from theory to practice as well as to the existing models and theories lacking a structure for implementation. Following an attempt to map the literature in this multifaceted field we found a gap in knowledge regarding how knowledge transfer can look within the television industry. Therefore, a qualitative case study has been done at a television production company. This study aims to contribute to an increased understanding of how knowledge is transferred between projects and how to ensure knowledge transfer. The study assumes that knowledge is defined in accordance with Nonaka and Takeuchi’s (1995) theory of implicit and explicit knowledge. This study is based on qualitative research in the form of seven interviews with project managers and CEO, two focus groups with ten project employees and a document analysis submission written by project participants. The result shows that there are many different types of knowledge transfer within the organization. The knowledge that is transferred between projects in the organization is mainly knowledge with explicit character in the form of documents. Currently the project managers are responsible for the transfer of knowledge between projects, which is done by inviting project participants to make written submissions. The project participants are glad to contribute to the transfer of knowledge, but the organization lacks a main strategy. The conclusions state that management should implement a systemic approach to the organization’s knowledge transfer for effective work towards organizational learning. The conclusions also highlight that the view on knowledge is ambiguous and that it is about more than just explicit and implicit knowledge. In order for the discussion of knowledge transfer within the organization to develop, the organization must further identify the types of knowledge and understand them in order to make them concrete.

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-01T21:11:37Z No. of bitstreams: 1 REX ANTONIO DA COSTA MEDEIROS - TESE PPGEE 2008..pdf: 1089371 bytes, checksum: ea0c95501b938e0d466779a06faaa4f6 (MD5) / Made available in DSpace on 2018-08-01T21:11:37Z (GMT). No. of bitstreams: 1 REX ANTONIO DA COSTA MEDEIROS - TESE PPGEE 2008..pdf: 1089371 bytes, checksum: ea0c95501b938e0d466779a06faaa4f6 (MD5) Previous issue date: 2008-05-09 / Nesta tese, a capacidade erro-zero de canais discretos sem memória é generalizada para canais quânticos. Uma nova capacidade para a transmissão de informação clássica através de canais quânticos é proposta. A capacidade erro-zero de canais quânticos (CEZQ) é definida como sendo a máxima quantidade de informação por uso do canal que pode ser enviada através de um canal quântico ruidoso, considerando uma probabilidade de erro igual a zero. O protocolo de comunicação restringe palavras-código a produtos tensoriais de estados quânticos de entrada, enquanto que medições coletivas entre várias saídas do canal são permitidas. Portanto, o protocolo empregado é similar ao protocolo de Holevo-Schumacher-Westmoreland. O problema de encontrar a CEZQ é reformulado usando elementos da teoria de grafos. Esta definição equivalente é usada para demonstrar propriedades de famílias de estados quânticos e medições que atingem a CEZQ. É mostrado que a capacidade de um canal quântico num espaço de Hilbert de dimensão d pode sempre ser alcançada usando famílias compostas de, no máximo,d estados puros. Com relação às medições, demonstra-se que medições coletivas de von Neumann são necessárias e suficientes para alcançar a capacidade. É discutido se a CEZQ é uma generalização não trivial da capacidade erro-zero clássica. O termo não trivial refere-se a existência de canais quânticos para os quais a CEZQ só pode ser alcançada através de famílias de estados quânticos não-ortogonais e usando códigos de comprimento maior ou igual a dois. É investigada a CEZQ de alguns canais quânticos. É mostrado que o problema de calcular a CEZQ de canais clássicos-quânticos é puramente clássico. Em particular, é exibido um canal quântico para o qual conjectura-se que a CEZQ só pode ser alcançada usando uma família de estados quânticos não-ortogonais. Se a conjectura é verdadeira, é possível calcular o valor exato da capacidade e construir um código de bloco quântico que alcança a capacidade. Finalmente, é demonstrado que a CEZQ é limitada superiormente pela capacidade de Holevo-Schumacher-Westmoreland.