The thesis is about industrial automatic CIP protocol, which belongs to SCADA systems. The first part is focused on basic principles of CIP protocol and on analysis of two protocols (EtherNET/IP and DeviceNet), which are based on CIP protocol. The second part deals with designing scenarios for a simulation. The simulation of one-way communication, two-way communication with help of reads from the console and two-way real time communication between Raspberries PI 3B+. The third part deals with a realization of the simulation, a start-up and a function of predefined scenarios and graphic interface. The fourth part deals with analysis network communication in situations, which occur during a protocol EtherNet/IP simulation.

PhD (English) / Department of English / See the attached abstract below

No description available.

Manual accuracy in microsurgery is reduced by tremor and limited access. A surgical approach through the middle ear also puts delicate structures at risk, while the surgeon is often working at an unergonomic position. At this point a micromanipulator could have a positive influence. A system was developed to measure “working accuracy”, time and precision during manipulation in the middle ear. 10 ENT- surgeons simulated a perforation of the stapedial footplate on a modified 3D print of a human skull in a mock OR. Each trial was repeated more than 200 times aiming manually and using a micro-manipulator. Data of over 4000 measurements was tested and graphically processed. Work strain was evaluated with a questionnaire. Accuracy for manual and micromanipulator perforation revealed a small difference. Learning curves showed a stronger decrease both in deviation and time when the micromanipulator was used. Also a lower work strain was apparent. The micromanipulator has the potential as an aiding device in ear surgery. / Die manuelle Genauigkeit in der Mikrochirurgie wird duch Tremor und limitierten Zugang eingeschränkt. Ein chirurgischer Eingriff am Mittelohr birgt außerdem ein Verletzungspotential für empfindliche anatomische Strukturen. Überdies ist die Sitzposition des Operateurs oft unergonomisch. Ein neuartiger Mikromanipulator kann auf diese Faktoren einen positiven Einfluss haben. Eine spezielle Software wurde entwickelt und Genauigkeit, Zeit und Präzision bei einem Eingriff am Mittelohr zu bestimmen. 10 Kopf- Hals- Chirurgen simulierten die Perforation der Steigbügelfußplatte an einem 3D Modell eines menschlichen Schädels in einem Demonstrations- OP. Jeder Versuch wurde mehr als 200 mal zunächst manuell und später mit Hilfe des Mikromanipulators wiederholt. Die Daten von mehr als 4000 Messversuchen wurden getestet und grafisch dargestellt. Die Arbeitsbelastung wure mittels eines Fragebogens evaluiert. Manuelle und mikromanipulatorgestütze Genauigkeit zeigten einen signifikanten, jedoch ,absolut betrachtet,sehr geringen Unterschied der Genauigkeit. Die Lernkurven zeigten einen steileren Verlauf sowohl im Hinblick auf Genauigkeit als auch Versuchszeit, wenn der Mikromanipulator zur Anwendung kam. Weiterhin war eine geringere Arbeitsbelastung zu erkennen. Der Mikromanipulator birgt Potential als kompaktes Hilfsmittel für die Ohrchirurgie.

This work is a social and cultural history of the participation of enslaved and free Blacks in the Seven Years’ War in British America. It is, as well, an intellectual history of the impact of Blacks’ wartime actions upon conceptions of race, slavery, and imperial identity in the British Atlantic world. In addition to offering a fresh analysis of the significance of Britain’s arming of Blacks in the eighteenth century, it represents the first sustained inquiry into Blacks’ experience of this global conflict. It contends that, though their rhetoric might indicate otherwise, neither race nor enslaved status in practice prevented Britons from arming Blacks. In fact, Blacks played the most essential role in martial endeavors precisely where slavery was most fundamental to society. The exigencies of worldwide war transformed a local reliance upon black soldiers for the defense of particular colonies into an imperial dependence upon them for the security of Britain’s Atlantic empire. The events of the Seven Years’ War convinced many Britons that black soldiers were effective and even indispensable in the empire’s tropical colonies, but they also confirmed that not all Blacks could be trusted with arms. This work examines “Tacky’s revolt,” during which more than a thousand slaves exploited the wartime diffusion of Jamaica’s defensive forces to rebel, as a battle of the Seven Years’ War. The experience of insecurity and insurrection during the conflict caused some Britons to question the imperial value of the institution of slavery and to propose that Blacks be transformed from a source of vulnerability as slaves to the key to the empire’s strength in the southern Atlantic as free subjects. While martial service offered some Blacks a means to gain income, skills, a sense of satisfaction, autonomy, community, and even (though rarely) freedom, the majority of Blacks did not personally benefit from their contributions to the British war effort. Despite the pragmatic martial antislavery rhetoric that flourished postwar, in the end the British armed Blacks to perpetuate slavery, not to eradicate it, and an ever more regimented reliance upon black soldiers became a lasting legacy of the Seven Years’ War. / text

This thesis consists of four independent chapters, in which well-known economic theories are employed to investigate, and better understand, data and facts from the real world. Although in fairly distant topics, each paper is an example of how economics, and more precisely microeconomics, offers a rigorous and effective framework to reason about what happens around us. In this sense, my dissertation fully represents what I have learnt in these five years. The first paper addresses the experimental behavior of subjects that interact with each other, non-cooperatively, in a laboratory setup. The experimental evidence is found to be at odds with the predictions of classical game-theory, and I explore whether a model of bounded rationality can instead succeed in explaining the data. The second paper looks at another type of data, historical rather than experimental. Together with Björn Wallace, we raise doubts, methodological and interpretational, regarding the validity of a recent finding that documents a sizeable effect of Africa's past slave trades on current economic performance. The last two papers investigate the phenomenon of limited records, understood as the limited availability of past public data regarding a transacting partner. The former is a survey, written jointly with Giancarlo Spagnolo, wherein we discuss the literatures that have independently studied whether limited records may actually prompt beneficial reputation effects. We argue that what is known about this type of informational arrangement is little and scattered, and that this is problematic given the large number of real-life situations featuring limited records. These conclusions prepare the ground for the last paper of this dissertation, which presents a model of limited credit records. The model aims at providing a framework for evaluating the current privacy provisions in the credit market which mandate the removal of information about borrowers' past performance from public registers after a finite number of years. / Diss. Stockholm : Handelshögskolan i Stockholm, 2011

The localized/delocalized duality of 5f electrons plays an important role in understanding the complex physics of actinides. Band-structure calculations based on the ad hoc assumption that 5f electrons are simultaneously localized and delocalized explained the observed dHvA experiments very well. This ad hoc assumption also gives the correct equilibrium volume for delta-Pu. Experimentally, the duality of 5f electrons is observed by inelastic neutron scattering experiments, or by soft X-ray angle-resolved photoelectron spectroscopy. It is worth recalling that the origin of partial localization in the 3d and 5f systems is quite different. In compounds with 3d electrons, the large crystalline electric field set up by the surrounding environment of transition metal ions plays a major role. On the other hand, in 5f systems, the Hund's rule correlations play the key role whilst the crystalline electric field is less important. In this thesis we have studied the effect of intra-atomic correlations on anisotropies in hopping matrix elements of different 5f orbitals. For that purpose, we used the effective model that includes on-site interactions that are responsible for Hund's rules and effective hopping terms that result from the hybridization of different 5f orbitals with the environment. Two different approximations, namely, rotationally invariant slave-boson mean-field (RISBMF) and infinite time-evolving block decimation (iTEBD), have been used to investigate the ground-state properties of the Hamiltonian. We have demonstrated that Hund's rule correlations enhance strongly anisotropies in hopping matrix elements. For a certain range of 5f bandwidth parameters this effect may result in a complete suppression of hopping processes for some of 5f orbitals, i.e., the system is in a partially localized phase. Within the RISBMF method, we calculated the ground-state properties and the phase diagram of the system. The suppression of hopping processes in some of 5f orbitals due to Hund's rule correlations can be seen through orbital-dependent quasiparticle weights. In a mean-field theory, a quasiparticle weight of zero for an orbital means a complete suppression of hopping processes in this orbital. Thus, quasiparticle weights and occupation numbers were used to classify partially localized phases. In the calculated phase diagram we obtain four partially localized phases that can be separated into two different sets. In the first set electrons in two orbitals are localized. In the second, electrons in one orbital are localized. The difference between the two sets is not simply the number of localized orbitals but the mechanism for the partial localization. For the first set, the Hund's rule mechanism applies: only those 5f electrons that enable the remaining ones to form a Hund's rule state will delocalize. This mechanism requires to have at least two localized orbitals, therefore it is definitely not applicable to those phases with only one localized orbital. For the second set, a situation similar to a single-band Mott-Hubbard transition applies. The direct on-site Coulomb interaction between jz and -jz electrons plays the key role for understanding the partial localization transition. In order to assess the validity of the RISBMF results we have used the iTEBD method to calculate the ground-state properties of a 1D system. Qualitatively, the two approaches agree with each other. However, we found an area where the RISBMF yields an artificial ground-state. Note that the mean-field method is worst for a 1D system. Therefore one shoud not judge from it the quality of the RISBMF method for the more general case.

Submitted by Maike Costa (maiksebas@gmail.com) on 2016-04-05T11:19:12Z No. of bitstreams: 1 arquivo total.pdf: 2911600 bytes, checksum: 043b5cd6d0e06f1a37d1e46eee745077 (MD5) / Made available in DSpace on 2016-04-05T11:19:12Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 2911600 bytes, checksum: 043b5cd6d0e06f1a37d1e46eee745077 (MD5) Previous issue date: 2015-02-27 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The main subject of this work is the African population of slaves and free people who lived in Paraíba in the first half of the 19th century. For many decades, historiography has denied, omitted or minimized the participation of African people in the historical process. However, the presence of men and women who came from Africa was constant in this province. Our main goal is to understand how the African population was introduced in Paraíba (a peripheral region in the Atlantic trade of slaves) and how they lived there. In order to achieve it, we have outlined a historiographical route to identify the gaps in a given historical culture. By making usage of the theoretical and methodological assumptions of Marxist Social History, we have made a critique of this portion of historiography that denied the participation of black populations and African populations in particular in the history of the province. Next, by using a variety of sources such as reports and official mail correspondence of governors and presidents of Paraíba, inventories and wills, requests of release, baptism records, manumission and many others, we have managed to comprehend further on the matters issued, approaching social and economic aspects of the region, indicating which were the main routes of importation and what was the everyday-life of African people. We have come to realise that Paraíba was inserted in the Atlantic trade of slaves indirectly which had a complementary character to this slave-holding society. Therefore the quantity of slaves who came from Africa was inferior to the ones sent to other locations such as Recife, Salvador and Rio de Janeiro. This factor marked certain specificities in the life of these African people. However the fundamental practise of slavery remained: violence. / Este trabalho tem como objeto a população africana escravizada e liberta que viveu na Paraíba na primeira metade do século XIX. Por muitas décadas, a historiografia negou, omitiu ou minimizou a participação dos africanos no processo histórico. Entretanto, a presença de homens e mulheres que vieram da África era constante nessa capitania/província. Nosso objetivo é compreender como os africanos foram introduzidos na Paraíba (uma região periférica no tráfico atlântico de escravos) e como essa população viveu na região. Para isso, fizemos um percurso historiográfico para identificar as lacunas existentes em uma dada cultura histórica do local estudado. Utilizando-nos dos pressupostos teóricos e metodológicos da História Social de influência marxista, fizemos a crítica a essa parte da historiografia que negava à população negra, em especial a africana, a participação na história da capitania/província pesquisada. Em seguida, a partir de diversas fontes como relatórios e correspondências de governadores e presidentes da Paraíba, inventários e testamentos, requerimentos de soltura, registros de batismo, cartas de alforria, dentre outras, nos aprofundamos nas questões propostas, abordando aspectos econômicos e sociais da região, indicando quais eram as principais rotas de importação e como se dava o cotidiano dos africanos. Percebemos que a Paraíba se inseria no mercado atlântico de escravizados de maneira indireta e o tráfico assumia um caráter complementar nessa sociedade escravista. Por conseguinte, a quantidade de escravizados vindos da África era inferior a outras capitanias/províncias centrais como Recife, Salvador e Rio de Janeiro. Esse fator marcou determinadas especificidades na vida desses africanos. Contudo, a prática fundamental da escravidão continuou presente: a violência.

Indiana University-Purdue University Indianapolis (IUPUI) / Research on Harriet Jacobs' slave narrative, Incidents in the Life of a Slave Girl exploded after 1981, when Professor Jean Fagin Yellin discovered textual evidence for refuting then-current claims that Lydia Maria Child was the author of this engrossing story. Child was indeed the book's editor, but Yellin discovered letters from Jacobs among the papers of abolitionist Amy Post that proved that the ex-slave was the author of her own narrative. Though the research this discovery engendered has been quite extensive, especially regarding the narrative's close adherence to the conventions of a sentimental novel, very few scholars have attempted to deal with a feature relatively unique to Jacobs" narrative: the use of African American English (AAE) in representing the speech of a number of her characters. Nor has any scholar exclusively focused on the authenticity of her representation of AAE. This paper, a first step in such an effort, demonstrates that Jacobs' use conforms to features found by linguists in their studies of contemporary AAE and Early Black English (EBE).

No description available.