Monitoring of Employees Abstract The thesis aims to provide a critical review of the complex topic of employees monitoring to the reader. The thesis summarises the information from the le- gislation connected to employees monitoring concerning the legal aspects of per- sonal data protection. The thesis also takes into account the recent changes in European legislation. The primary legislation related to this subject is the pro- vision of Section 316 of the labour code, as well as the European regulation of personal data protection GDPR. The thesis is divided into four chapters. The first chapter offers a historical overview of the labour law and the protection of privacy and personal data. In the second chapter, the particular legal bases of employees monitoring are analysed. The third part is focused on the history and the activity of the supervisory authorities which are the Office for Perso- nal Data Protection and the State Labour Inspection Office. In the last chapter, the particular methods of employees monitoring, namely closed-circuit television, control of correspondence, phone calls and business computers, location tracking and biometric identification are described and analysed. Keywords Employees monitoring, closed-circuit television, GDPR

El desarrollo del deporte en la actualidad es una necesidad inherente en las diferentes naciones y, además, es parte del cimiento de su potencial humano. Este potencial está afectado en el Perú, sobre todo por sus diversos problemas políticos y socioeconómicos que se expresa notoriamente en los resultados como una sociedad no cohesionada y con diferentes puntos de vista muy egocentristas. La estructura de este trabajo está comprendida en cuatro partes fundamentales: la introducción y conceptualización del tema de trabajo, en este caso el autódromo como medio de solución a un problema; la historia y desarrollo actual del tema en el contexto actual peruano; la aplicación y versión personal de la solución por medio de un proyecto arquitectónico; y, por último, los beneficios y características de este proyecto sobre una base personal hipotética. La idea central del proyecto repercute en justamente la idealización de un proyecto arquitectónico deportivo y la mejora de la imagen pública, urbanísticas y social del lugar. El autódromo internacional como proyecto estará acompañado con actividades secundarias como sala de juegos y un museo organizados entorno a una plaza central con un anfiteatro abierto al público. En conclusión, la realización de este proyecto reúne las características necesarias para brindarle al lugar y al entorno un espacio de desarrollo deportivo de alto nivel y un lugar de entretenimiento y fomentación del deporte automovilístico, objetivo por el cual se trazó en un inicio. Con los espacios y ambientes necesarios las funciones del público como del sector privado fluyen adecuadamente sobre el proyecto creando así una coexistencia entre el usuario y el edifico. / The advancement and expansion of sport today is an inherent need in different nations and, moreover, is part of the foundation of its human potential. This potential is affected in Peru, especially because of its various political and socioeconomic issues, which is clearly expressed in the results as a non-cohesive society with very different egocentric points of view. The structure of this work is mainly composed of four fundamental parts: the introduction and conceptualization of the topic of work, in this case the race circuit as a mean of solving a problem; the history and current development of the subject in the current Peruvian context; the application and personal interpretation of the solution through an architectural project; and, finally, the benefits and characteristics of this project on a hypothetical personal basis. The essential idea of the project is precisely the idealization of an architectural sports project and the improvement of the public, urban and social image of the area. The international circuit as a project will be accompanied by extra activities such as game rooms and an automobile museum organized around a central square with an amphitheater open to the public. In conclusion, the realization of this project has the necessary characteristics to provide the place and the surroundings with a space for high-level sports development and a place for entertainment and promotion of the sport of cars, an objective for which it was initially designed. With the necessary spaces and areas, the role of the public and the private sector will flow properly on the project, creating a coexistence between the user and the building. / Tesis

A dissertation submitted to the Faculty of Engineenug, University of the Witwatersrand, in fulfilment. of the requirements for the degree of Master of Science in Engineering, / A multi variable control strategy for a grinding circuit at East Driefontein has been implemented by others and has enabled it to operate under stable conditions. The next development needed was to find conditions under which tne efficiency of the circuit was the greatest. Optimum set points exist for the multi variable controller to keep the circuit at its most efficient state. This project was done to determine these set points, and how it affected the operation of the circuit. The strategy involved the collection of process data, the development of mathematical models and the determination of these optimum set points by simulation, This option reduced interference with routine production operations, which is often a prohibiting factor during any development work on an existing process. The optimum set points were successfully determined, and were compared with previous findings and current plant practice. / AC2017

"Due to the high variation of critical device parameters inherent in integrated circuit manufacturing, modern integrated circuit designs have evolved to rely on the ratios of similar devices for their performance rather than on the absolute characteristics of any individual device. Today's high performance analog integrated circuits depend on the ability to make identical or matched devices. Circuits are designed using a tolerance based on the overall matching characteristics of their particular manufacturing process. Circuit designers also follow a general rule of thumb that larger devices offer better matching characteristics. This results in circuits that are over designed and circuit layouts that are generally larger than necessary. In this project we develop a model to predict the mismatch in a pair of NPN bipolar transistors. Precise prediction of device mismatch will result in more efficient circuit deigns, smaller circuit layouts and higher test yields, all of which lead to into more reliable and less expensive products."

Thesis advisor: Vidya Madhavan / Three projects have been undertaken during the design and the construction of a scanning tunneling microscope. The first project focuses on a method of testing the movement of piezoelectric ceramics by means of a modified Michelson interferometer. These tests determine the magnitude and the direction of motion on the scale of a few angstroms. These piezos are then used in moving the tip of the STM. The second project concerned the design of a surface analysis chamber to be used for thin film depositions. This chamber will operate at UHV levels and will produce samples to be examined by the STM. The final project dealt with the construction and testing of a feedback loop to be used in the e-beam heater during thin film depositions. This box monitors the current between the sample and the source modifying the voltage across the filament to ensure the current between the two remains constant, ensuring a constant deposition rate. / Thesis (BS) — Boston College, 2004. / Submitted to: Boston College. College of Arts and Sciences. / Discipline: Physics. / Discipline: College Honors Program.

Thesis advisor: Paul Gray / This dissertation analyzes the field of consumption to provide an analysis of Bourdieusian cultural capital. Bourdieu introduced cultural capital to express the summed effect of intergenerational and personal institutional credentials on economic structure (1986). The three articles of this dissertation – Imagining Class, Precariat Production, and New Cultures of Connection – take up the study of cultural capital in a contemporary, American context among Millennial consumers (Bourdieu 1984, 1993). These cases analyze producer and consumer experiences within the capital markets for durable goods, labor, and a barter market for services. The experiences under analysis include the design and purchase of luxury clothing, the selling of labor to temporary employers, and the barter of unlike services for a like medium of exchange. The analyses build upon Bourdieu’s concept of cultural capital by tracing its role and evolution through producer and consumer exchanges in the “consumer field” (Bourdieu; 1984, 1986, 1993). The analysis of this dissertation relies on semi-structured interview, ethnographic, and survey data. In total, 96 semi-structured interviews were conducted during the data collection for the three articles. Interview data is supported by economic survey and ethnographic data for research participants. Imagining Class melds postmodern and Veblenian consumer theory through informant narratives of the cynical and strategic production of conspicuous consumption enacted by both producers and consumers of the clothing brand Prep Outfitters (Featherstone 1991; Veblen 1899/1994). Upwardly mobile, young consumers believe that performing an elite lifestyle is a condition upon which financial services career success rests. The shared belief is correlated with income increases and results in an environment of aesthetic and lifestyle conformity on Wall Street. Precariat Production analyzes the motivational aspects and economic benefits of collaborative production work within the online platforms of Airbnb, RelayRides, and Taskrabbit and provides insight into the nature of the new working precariat class (Standing 2009). Analysis shows that three central motivational categories drive participation: money, efficiency / environmental, and workplace flexibility. Possession of economic assets prior to beginning work as a collaborative producer is a key characteristic associated with high earning within the precarious, collaborative marketplace, yet cultural capital is not a significant correlate of high income relative to the labor market. Further, those who enjoy the most economic success within the collaborative marketplace as “high earners” are also most likely to express that a motivation of “efficiency environmental” drives their production. The efficiency/environmental motivational finding lend a broader support for the claim of an evolution of high cultural capital expressions of ecohabitus (Bourdieu 1984; Schor et al. 2014). New Cultures of Connection evaluates the exchanges made on an egalitarian barter market through the medium of a local currency, “time dollars.” The study uses Zelizer’s concept of a circuit of commerce (2005) to show that cultural capital limits potential trades available in the time bank and reveals that those with high cultural capital exit the market. Ecohabitus provides one exception to this finding as high cultural capital participants find nonmonetary value in authenticity, localism, environmentalism, holistic wellness and self-reliance. Yet, this new set of high cultural capital preferences does not pair with their exchanges as they demonstrate enduring inclination towards professionalized, market-like services. Disparities in cultural capital challenge the potential of barter networks like the “time bank” to alter the dependence of identities of market practice and success. / Thesis (PhD) — Boston College, 2015. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Sociology.

Os resíduos de equipamentos elétricos e eletrônicos é um dos fluxos de resíduos que mais cresce no mundo. O aumento na produção destes equipamentos como resultado dos avanços tecnológicos e a sua rápida obsolescência promovem o aumento de geração deste tipo de resíduos. Portanto, este trabalho tem como objetivo estudar a recuperação de níquel presente no licor de lixiviação de placas de circuito impresso de telefones celulares obsoletos, através da aplicação de processos hidrometalúrgicos e eletrometalúrgico. Inicialmente, foram preparadas soluções sintéticas a partir da composição química do licor de lixiviação das frações magnética (MA) e não magnética (NMA) das placas de circuito impresso cominuídas. Os elementos presentes nas soluções são: ferro, zinco, níquel e alumínio. Posteriormente, foi realizada uma etapa de remoção do ferro, através de precipitação seletiva. A morfologia e a composição química do precipitado foram analisadas através de Microscopia Eletrônica de Varredura (MEV) e EDS, respectivamente. A composição química das soluções resultantes da precipitação foi determinada através da técnica de espectrofotometria de absorção atômica. Através do processo de precipitação conseguiu-se uma porcentagem de remoção de ferro na solução NMA de 99,6% e na solução MA de 99,9%, porém, observou-se também a coprecipitação de zinco, alumínio e níquel. Com as soluções resultantes desta etapa, foi realizada a purificação das soluções através de extração por solvente, utilizando Cyanex 272 como agente extratante. As variáveis estudadas nos ensaios de extração por solvente foram: pH, concentração do extratante, relação fase aquosa/orgânica (A/O) e temperatura. . Além disso, também foi determinado o número de contatos necessários para a extração de ferro, zinco e alumínio, obtendo assim, uma solução aquosa contendo unicamente níquel. Finalmente, foram realizados os ensaios de eletrodeposição para a obtenção de níquel metálico. Foi avaliado o efeito da temperatura sobre o filme depositado. A morfologia dos depósitos e a espessura da camada foram analisadas através do MEV, verificando que o aumento da temperatura influencia nas características do depósito obtido. / Electric and electronic waste (e-waste) is one of the fastest growing waste streams in the world. Continuous increasing production owing to the technological advances and the products consumption rise, all together with the rapid obsolescence of this scrap promotes the necessity of exchange and the increasing of generate waste. Therefore, the aim of this work is to study a recovering of nickel from leach liquor of cell phones printed circuit boards, through of hydrometallurgical and electrometallurgical process application. Firstly, was prepared synthetic solutions of both magnetic (MA) and nonmagnetic (NMA) fractions of printed circuit boards. The metal ions present in the synthetic solutions are: iron, zinc, nickel and aluminium. Afterwards was realized the iron removal stage, through both selective precipitation and solvent extraction process, in order to make a comparison of these techniques. The precipitates were analyzed across of scanning electron microscope (SEM), and the chemical composition of these solutions through atomic absorption spectrometry (AAS). With selective precipitation it was obtained 99,6% and 99,9% of iron removal with selective precipitation in NMA and MA solutions, respectively. Therefore, it was also observed co-precipitation of zinc, aluminium and nickel. With solutions after precipitation stage was carried out the solutions purification through solvent extraction using cyanex 272 as extractant. Solvent extraction test were studied different parameters, such as: equilibrium pH, extractant concentration, aqueous-organic (A/O) ratio and temperature. It was also determinates the stages number required for iron, zinc and aluminium extraction, to obtain nickel in aqueous solution uniquely. Finally, was carried out the electrodeposition test for obtain metallic nickel. Was analyzed the effect of temperature on the deposited layer. Surface Morphology and thickness of the deposits were evaluated by MEV, verifying that temperature increasing influences on deposited layer.

O avanço da tecnologia de aparelhos eletro-eletrônicos favorece a troca constante dos equipamentos. O freqüente descarte de aparelhos obsoletos se torna um problema de sustentabilidade e também um problema ambiental devido ao seu acúmulo em aterros. A solução para minimizar estes impactos é a reciclagem de seus componentes. Por esta razão, o principal objetivo deste trabalho é estudar o processamento das placas de circuito impresso de telefones celulares através de operações unitárias de Tratamento de Minérios e hidrometalurgia a fim de se recuperar o cobre contido nas placas. Para isso, inicialmente, placas de circuito impresso foram processadas em moinho de martelos, a fim de liberar os materiais, em seguida foi feita a separação magnética do material cominuído. Com a fração não magnética foi feita a separação eletrostática e o material foi separado em: fração condutora, mista e não condutora, com cada fração foi feita a classificação granulométrica e, posteriormente, realizaram-se ensaios de caracterização como pirólise, digestão em água régia e análise química de espectroscopia de emissão óptica por indução de plasma. Os processos hidrometalúrgico aplicados para a recuperação de cobre nas placas de circuito impresso de aparelhos celulares obsoletos envolvem etapas lixiviação com ácido sulfúrico na ausência e na presença de peróxido de hidrogênio. Os resultados da caracterização mostraram que as placas de circuito impresso de celulares após a moagem possuem 24% de cerâmicas; 12,7% de polímeros e 63,3% de metais. Além disso, após a classificação granulométrica e a separação eletrostática os materiais não se concentraram em nenhuma fração especifica, portanto o processamento mecânico visando a recuperação de metais deve contemplar a moagem e a separação magnética. / The technology advancement of electro-electronics devices favors the constant equipment exchange. The frequent disposal of obsolete equipment becomes a sustainability problem and also an environmental problem due to their accumulation in landfills. One possible solution to minimize these impacts is the recycling of their components. For this reason the aim goal of this study is processing of printed circuit boards of mobile phones utilizing unit operation of ore treatment and hydrometallurgy to recover the copper contained in the printed. Therefore, initially printed circuit boards were processed on a hammer mill to release the materials, then it was made magnetic separation of comminuted material. With the non-magnetic fraction was made electrostatic separation in which the material was separated into: conductive, mixed and non-conductive fraction, with each fraction was made grain sized classification and then assays were performed analysis of characterize as pyrolysis, digestion in aqua regia and chemical analysis of inductively coupled plasma atomic emission spectroscopy. Hydrometallurgical processes applied to the cooper recovery in printed circuit boards of obsolete mobile phones, involve steps leaching with sulfuric acid in the absence and presence of hydrogen peroxide. The characterization results showed that the printed circuit boards of mobile phones after grinding have ceramics 24%, polymers 12.7% and metals 63.3%. Moreover, after grain sized classification and electrostatic separation the materials didn\'t concentrate in no specific fraction, therefore the mechanical processing in order to recover metals should include grinding and magnetic separation.

University of Macau / Faculty of Social Sciences. / Department of Sociology

L’utilisation des convertisseurs de puissance dans les applications de transport électrique à base de pile à combustible ouvre les portes de recherche sur la problématique de leur fiabilité puisqu’un défaut dans ces circuits pourrait provoquer une panne ou un disfonctionnement se répercutant sur l’ensemble de la chaine de traction. Le convertisseur statique considéré est un hacheur élévateur à six bras parallèles et entrelacés à fréquence de découpage égale à 100kHz ayant un gain en tension élevé (égal à 5). Il comporte avec le choix des éléments passifs une ondulation de courant d’entrée faible et interface une pile à combustible de 21kW (70V, 300A) et une charge résistive de 350V (valeur proche des réseaux comportant des batteries Li-ion). Ces systèmes incorporent des interrupteurs de puissance semi-conducteurs qui sont les composants les plus fragiles et qui sont soumis à des contraintes électriques et thermiques sévères pour les applications automobiles. L’utilisation de la technologie en carbure de silicium pour ces cellules semi-conductrices élémentaires accompagne un réel besoin industriel des filières de développement des systèmes miniaturisés et intègre les préoccupations des constructeurs automobiles autour de la mise en œuvre opérationnelles des technologies innovantes embarquées et fiables. En effet, cette technologie des composants semi-conducteurs, dit «grand-gap», est à coup sûr un candidat sérieux pour optimiser l’efficacité énergétique et l’intégration de puissance des convertisseurs, pour pile à combustible, plus robustes vis-à-vis des contraintes de l’usage transport. Dans mes travaux de thèse, les défauts de type court-circuit et circuit-ouvert d’interrupteurs de puissance en carbure de silicium sont alors considérés pour satisfaire la continuité de service et annuler l’influence de cette dégradation d’une part sur la source électrochimique et d’autre part sur la charge. Les méthodes de détection proposées sont des méthodes simples et non intrusives. Elles utilisent la tension drain et source VDS de l’interrupteur de puissance comme indicateur de défaut pour juger de la présence d'un court-circuit ou un circuit-ouvert. Le principe de détection consiste à comparer la tension VDS à une tension seuil paramétrable (à fixer pour le composant en carbure de silicium). Une fois la phase inductive défectueuse est identifiée, un processus de de gestion des défauts par la commande est mis en œuvre. Dans le cas de court-circuit une stratégie de soulagement par la commande est appliquée pour adoucir la coupure de courant de la branche inductive en défaut. Puis suivra l’isolation de cette ligne via des interrupteurs spécifiques qui supportent une ouverture du circuit à fort courant (exemple: fusible ultra-rapide) et une reconfiguration par la commande du convertisseur de puissance (passage de 6 à 6-i phases, avec i nombre de défauts). Dans le cas de circuit-ouvert, qui un défaut qui isole automatiquement le bras défectueux, si aucune action préventive n’est planifiée la continuité de service est assurée mais à plus d’ondulations de courant sur les bras du convertisseur statique. Pour éviter cet effet, la reconfiguration par la commande est nécessaire. / The use of power converters in fuel cell electrical transport applications drives research to study the problem of their reliability, since a fault in these circuits could cause a breakdown or a malfunction that affects the entire system of the powertrain. The converter under consideration is a six-phase interleaved boost converter operating in unidirectional power flow in continuous conduction mode with a 100 kHz switching frequency and a high voltage gain (equal to 5). It allows, with the choice of passive elements, a low input current ripple and interfaces a 21kW fuel cell (70V, 300A) and a resistive load of 350V (value close to the networks with batteries Li-ion). These systems contain semiconductor power switches which are the most fragile components and are subject to severe electrical and thermal stresses for automotive applications. The use of silicon carbide technology for these semiconductor components accompanies a real industrial need for development of a miniaturized system and integrates the concerns of manufacturers of electric vehicles around the implementation of innovative, embedded and reliable technologies. Indeed, this technology of semiconductor components is certainly a serious candidate to optimize the energy efficiency and power integration of converters, for fuel cells, more robust against constraints of the transport use. In my thesis work, switch short-circuit and switch open-circuit faults of silicon carbide power switches are considered to satisfy the continuity of service and to cancel the influence of this degradation on both the fuel cell source and the charge. The proposed detection methods are simple and non-intrusive. They use the drain to source voltage VDS of the power switch as a fault indicator to judge the presence or not of a short-circuit or an open-circuit switch fault. The detection principle consists in comparing the VDS voltage with a configurable threshold voltage (to fix it for the silicon carbide component). Once the faulty inductive phase is identified, a fault management process by the control is implemented. In the case of switch short-circuit fault, firstly a control strategy is applied to soften the break of current of the faulty inductive phase. After faulty phase isolation using specific switches that support breaking of the high-current circuit (example: high-speed fuse) and a reconfiguration by the control of the power converter (transition from 6 to 6-i phases, with i number of faults). In the case of switch open-circuit fault, which automatically isolates the defective phase, if any preventive action is planned the continuity of service is ensured but to more current ripple on the arms of the DC/DC converter. To avoid this effect, reconfiguration by the command is necessary.