Thesis (Master)--İzmir Institute of Technology, İzmir, 2005 / Keywords: Solar energy plant, solar collectors, fresnel lens, spherical geometry, solar tracking system. Includes bibliographical references (leaves 113-114).

Thesis (Ph.D.)--University of Stellenbosch, 2002. / Bibliography. Also available via the Internet.

Thesis (Ph. D.)--University of Pittsburgh, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 798-842).

Thesis (M.S.)--Humboldt State University, 2009. / Includes bibliographical references (leaves 69-70). Also available via Humboldt Digital Scholar.

Thesis (Ph. D.)--University of Pittsburgh, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 798-842).

This thesis investigates the use of heat pipes for removing heat from flat plate solar collectors and transferring the energy to air in a space heating system. Heat pipes are passive devices which are very efficient at transporting heat energy. They operate using a closed evaporation-condensation cycle. This thesis presents the fundamentals of flat plate collectors, heat pipes, and a set of parameters for evaluating a heat pipe flat collector. Also included are the results of this project and the recommendations for improvements.

The concept of achieving low cost (≈ $20/m²) and ultra low weight (5 kg/m²) for heliostats is explored theoretically and experimentally. The objective of this work is to significantly improve the cost and performance of the structure under concern, without sacrificing strength and efficiency. The focus is on an innovative design of stretched-membrane heliostats. A reflective membrane of thin film is supported by a taut fishnet structural membrane consisting of graphite fiber-polymer matrix composite. The reflective and structural membranes are attached to a ring frame made of wood. The nonlinear problem of stress-strain analysis is formulated and solved using the finite-element code NASTRAN. The analysis is done for loads which include the initial stretching of the film and structural membrane and the pressure load due to wind. The scope of the present work is limited to analyzing the structural deformation behavior of flat-plate heliostats and partial extension to parabolic and semi-hemispherical dish reflectors.

This thesis explores important aspects of the debates and practices that since the First World War have both extended the meaning of museums and museology, and renovated what was seen by many as a stagnated 19th century model of museum policy and communication. For the purpose of illustrating the manifold nature of these debates this thesis examines the life and work of French museologist and innovator of modern French ethnographical practice, Georges Henri Rivière (1897 – 1985). It draws on the conceptual distinction made in some international museum literature between museology and museums. This distinction stems from the different assumptions introduced by two long term projects of cultural development: the 18th century projects of enlightenment and the 20th century promotion of an anthropological conception of culture. The former is closely related to the European system of fine art understood as a system of promotion and popularization of the arts. The latter is part of the efforts of the human and social sciences to insert museums in the society they serve and/or to give a democratic representation to the variety of cultures existing in a society at large. The consequence was the development, in the course of the 20th Century, of two often opposing managerial policies and cultures, one inwards looking, aiming at modernization and professionalization of internal museum functions, the other focusing on closing the relationship of museology and its natural and social environment. The first was essentially administrative and scholar-based, and has thrived with the adoption of a culture of mass consumption and multiplied its functions according to an ever-dominant division of labour. The second is proactive and externally driven, a policy and managerial culture aiming at the management of processes and resources, and at the identifications and development of the living cultures existing in a society. In this line of thought this research explores the museology of Rivet-Rivière’s Musée-Laboratoire as part of a national project of cultural development aiming at changing the relationship of French citizens to their material culture and heritage. As the museological embodiment of the myth of primitivism, Rivet-Rivière’s ‘structural museology’ was shaped by the convergence of avant-garde movements in contemporary arts with the object-based ethnology of Marcel Mauss. It eventually led not only to Rivière’s most famous concept, the Ecomusée, but also to a ‘museology without walls’ and to the diversification and multiplication of local museological practices by which every activity existing in a territory could be given museographical expression. As cultural activist, Rivière was at the crossroads of major events and personalities of his time, and his museological talent was placed at the service of their concerns and expectations, particularly through his long involvement with the UNESCO-linked International Council of Museums (ICOM). Furthermore, his privileged positions in the culture of its time made him a significant witness, not just of the debate about museums, but of 20th century French cultural life.

<p style="text-align: justify">U radu su prikazani rezultati ispitivanja energetske efikasnosti ravnih PSE. Cilj istraživanja je uvodenje i definisanje konstruktivnih, fizickih i radnih karakteristika ravnih,<br />niskotemperaturnih prijemnika sunceve energije sa aspekta povecanja energetske efikasnosti. Ispitana je mogucnost efikasnijeg prenosa toplote sa povr&scaron;ine apsorbera na radni medijum cime se smanjuju ukupni toplotni gubici.</p> / <p>In the paper are presented the result of energetic efficiency test of<br />flat plate solar collectors. The aim of test is introduction and<br />definition of constructive, physical and working characteristics of<br />flat plate low-temperature solar collectors from the incresing<br />energetic efficiency aspect. Possibility of higher efficiency of heat<br />transmision from the surface of absorber to the working fluid was<br />tested, with decresing of summary heat losses.</p>

This thesis investigates the material culture of early modern England as reflected in the object collections of the Shakespeare Birthplace Trust in Stratford-upon-Avon. The collection consists of nearly 300 objects and six buildings dating from the period 1500-1650 representing 'the life, work and times of William Shakespeare', with a particular emphasis on domestic and community life in Shakespeare's Stratford. Using approaches from museum studies and material culture studies together with historical research, this thesis demonstrates how objects add depth and complexity to historical and museological narratives, and presents a range of unique and never before examined material sources for the study of the social and cultural history of the period. For different reasons, collectors, scholars and museum practitioners have all tended to place the Trust's objects within existing historical narratives whilst neglecting the physical evidence of the objects themselves. By closely examining the object as well as the cultural context of its manufacture and use, this study seeks to rejuvenate the way this and similar collections are seen and used in studies of the early modem period.