Dissertations / Theses on the topic 'Tower'
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1
Hoppe, Charles C. Beasley Bruce. "The tower /." Online version, 2010. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=355&CISOBOX=1&REC=15.
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Wysor, Charles Frank. "Tower House." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/52956.
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This thesis is an architectural investigation of a house as a rational object imbued by memory. The place is a wooded hill on the border between a hundred acre farm and the marshy ravine of the Totopotomoy "Totomoy" Creek in Mechanicsville, Virginia. The farm dates back to the Civil War when the Totomoy was no man's land between Union and Confederate earth works. It has been farmed by my grandfather since the late 1940s. The house is a pair of rectangles separated by a stair. The concrete block walls are punctured by large windows, aligned to define interior passage and establishing clarity of spatial and formal relationships. The tower house is the reduction and rational manifestation of familial memory.Master of Architecture
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McCarty, Gerald. "Tower as communication." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/76023.
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Branch, L. Nikole. "Stair Column Tower." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23725.
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This set of drawings, paintings, and photographs explores the realms of knowledge and experience in architecture through analytical and perceptual means. In other words, how physical, material considerations inform the experience of moving through space, the perception of space, and the memory of place. These themes and questions are considered through the design of an observation tower that punctuates the ambiguous joint between land and water, earth and sky on the southwestern most point on the Isle of Skye, Scotland, UK.Master of Architecture
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Axelsson, Peter, and Jonas Petersson. "Remote Tower Centre - Configuration and Planning of the Remote Tower Modules." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-104024.
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Today, many small aerodromes have a hard time surviving economically, and amongst the largest cost is air traffic control. Airlines are cutting costs where they can, and many times this affects the aerodromes as well, e.g. when airlines decide to park remotely instead of at the gate. The project called Remotely Operated Towers, initiated by SESAR and run by Saab and LFV, is aiming to address this problem. The project revolves around remotely providing ATS to aerodromes where it is deemed suitable. A big challenge in this project is how to assign aerodromes to remote tower modules in the remote control centre. There are many ways to do this, but there is only a few ways to do it to achieve the least amount of modules. This thesis aims to find an optimal solution to the challenge mentioned above. The thesis resulted in a model where the user can provide the input of choice, i.e. aerodromes with associated ATS operating hours and movements, for a specific period – and receive the assignment schedule for the modules, saying exactly which aerodrome are to be controlled by which module at what time.
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Whitley, William Stacey Merton Thomas. "The Tower of Babel /." view abstract or download file of text, 2007. http://proquest.umi.com/pqdweb?did=1404343191&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.
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Thesis (Ph. D.)--University of Oregon, 2007.Liturgical drama for vocal soloists (TBarB), chorus (SATB), children's chorus, and chamber orchestra. Text adapted from Thomas Merton's play The Tower of Babel : a morailty. Text printed as words: leaves 129-134. Includes vita and abstract. Also available for download via the World Wide Web; free to University of Oregon users.
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Hilding, Malin. "Torn : Look-out Tower." Thesis, Umeå universitet, Arkitekthögskolan vid Umeå universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172235.
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Casey, John D. "Tower at Eisenhower Avenue." Thesis, Virginia Polytechnic Institute and State University, 1992. http://hdl.handle.net/10919/77738.
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The Eisenhower Avenue Valley site is unique in the Washington Area for its highrise development potential. It offers access to the Metro line, the beltway and Old Town Alexandria. Its zoning diversity will accommodate light Industrial, commercial and residential construction. The question of whether or not to build a tower in proximity to the temple is an architectural and a political question. The assumption of this project is that the Eisenhower Avenue Valley will have high rise development. This design has recognized the significance of the Eisenhower Avenue Valley site and its zoning. It identifies the specific aspects of the site, such as the proximity of the Metro Line, the beltway, Old Town and the Potomac River. Within this context, the project defines the user of the metro by finding an architectural meaning within the planning issues discussed above.
As the grid-lock of the beltway grows and becomes more congested, the Metro Line will flourish. The Metro line, when used to its greatest potential, will soon replace the street grid and city block as an urban organizational element. A city's character is drawn from this urban element. This project responds to this element by defining the individual within such a context. Retail commercial and residential space exist with respect to the Metro Line, not in competition with, or in ignorance of it. A perpendicular axis emerges from the Metro Line. Ordered around this axis are residential, commercial and retail spaces that exploit their specific site advantages.
The accomplishment of this project has been in understanding and developing an architectural solution to these planning Issues and questions for the individual who will live, work and shop in this environment. I would like to acknowledge the help of several individuals. Ed Rahame's carpentry expertise and· advice helped me through the oral defense of my thesis. Tim Mount's photographic ability and patience were greatly appreciated. Don Casey provided intimate knowledge of the Eisenhower Avenue Valley and the public policy applied to it. This came from his years in public service as a City Councilman.Master of Architecture
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Masters, Joel T. "TOWER-TRACKING HELIOSTAT ARRAY." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/481.
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This thesis presents a method of tracking and correcting for the swaying of a central receiver tower in concentrated solar production plants. The method uses a camera with image processing algorithms to detect movement of the center of the tower. A prototype was constructed utilizing a CMOS camera connected to a microcontroller to control the movements of three surrounding heliostats. The prototype uses blob-tracking algorithms to detect and correct for movements of a colored model target. The model was able to detect movements in the tower with average error of 0.32 degrees, and was able to correctly orient the surrounding heliostats to within 1.2 and 2.6 degrees of accuracy while testing indoors and outdoors, respectively.
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Androulidaki, Amalia. "The meaning of the architectural form of the tower : the ancient towers of Siphnos." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/1842/26122.
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The phenomenon of building numerous towers in Siphnos and also in other Hellenic regions in antiquity (sixth to fourth century BC) has been studied only relatively recently by scholars. Their number, the quality of the cture, and the constant typology of these towers, contest the suggested theories about their original purpose. In this study, the analysis of the towers addresses not just the structure of the building but also the ning that has been attributed to the space and the form. This research is an attempt to detect the architectural ities that render the tower capable of corresponding to specific requirements and to fulfilling the intentions their creators. The analysis of the meaning and the intentions which prompted the selection of the particular architectural eidos, is derived from the perceptions and beliefs of that era in terms of its social, religious, philosophical and technological contexts. The results of the phenomenological analysis have been confirmed further supported from by historical, religious and anthropological research. The research proposes that the towers of Siphnos have had a multivalent connection with the mines ch can be interpreted as sacred and functional. The vegetation and generation of metals, ores and minerals considered as a certain fact in antiquity. The regeneration of all creatures presupposed the ceremonial repetition of the sacred coitus of the primordial couple in the ritual known as "hieros gamos". The tower is the ptor, the intermediary vehicle in the performance of this holy marriage, attracting thunderbolts that constitute the sign of this union. Also, the towers define and demarcate the metallurgical region and shape the geographical networks in accordance with the entries of the galleries, in order to construct their specific ntated directions. The capability of the towers in attracting lightning, has served positively the safety of the e workers and mines. The fact that all the towers stand on surface metalliferous veins, as was expected, rding to renaissance texts, answers the unsolved problem of the placing of the towers around the island and firms the verification of the proposed theory.
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Kramer, Anna Marie. "The Power of the Tower: Contesting History at Bear Lodge/Devils Tower National Monument." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/pomona_theses/151.
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Bear Lodge/Devils Tower National Monument, a spectacular rock formation in northeastern Wyoming, has a multiplicity of meanings, not all of which were fully acknowledged until the 1990s. It is widely known as a geologic wonder, the first national monument, a marker of local and pioneer heritage, and a premier rock climbing area. In the 1980s and ‘90s, however, the National Park Service began to acknowledge that the Tower also holds cultural and historical meaning for the Northern Plains tribes, dating back long before the colonization of the American West. Some of the tribes expressed to the Park Service that they were offended by rock climbers desecrating the Tower, a sacred site, leading the Park Service to seek to compromise between these competing uses of this public land. The controversy over climbing at Bear Lodge/Devils Tower was, and remains, a debate over history, and this thesis examines the historical foundations for the discourses of climbers, local white residents, tribal members, and the Park Service, as these various groups asserted their claims to this public space. This thesis contends that the language used by climbers and local white residents in arguing against the Park Service’s accommodation of tribal cultures and beliefs appropriated the languages of spirituality and tradition used by the tribes, and sought to delegitimize the tribal claims to the Tower. The Park Service is complicit in controlling the discourses surrounding the Tower and erasing the traditions and complex history of the Northern Plains tribal ties to this sacred place.
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Jonsson, Rickard, and Daniel Tägt. "Remote Tower Center - Planning Tool." Thesis, Linnéuniversitetet, Institutionen för datavetenskap (DV), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-63531.
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Saab has a product, Remote Tower, which allows air traffic controllers to supervise and control an airport remotely. Today an air traffic controller can operate on one airport at the time and switch between airports. The next phase of this system is to allow the air traffic controller to simultaneously control multiple airports, i.e. going from controlling airports in sequence to controlling airports in parallel. The airports are connected to and controlled from one single airport control center. This leads to a planning problem, both in long term and short term, for staffing this airport control center to maintain the capacity of the connected airports. This thesis will present the process of the development of a tool allowing a user to plan the schedule the staffing of a remote tower center. By utilizing this tool the impact of different restrictions affecting the planning will be evaluated and presented in the results.
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Salonen, Arthur. "Timber Tower: 10 20 30." Thesis, KTH, Arkitektur, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-222141.
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Timber Tower: 10 20 30 offers a conceptual structural system for tall wooden buildings. The thesis has been a noumenal design process into the subject of timber towers, where the conceptual system is designed to work in accordance with engineering concepts for tall buildings. The system uses mass timber as the primary structural material supported by embedded steel plates. The introduced system plays to the strength and weaknesses of both corresponding materials. Mass timber is used as the primary material that is designed to take care of the dead & live loads, while steel is used as a secondary material to give additional support to the vertical loads. The structural system is interpolated to three different height categories; 10, 20 & 30. The timber & steel system is designed to be prefabricated in parts and assembled on site. Other considerations also addressed in the thesis has been fire-, weather- and soundproofing of the structure.
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Johnson, Linda Carole. "Planning gain in Tower Hamlets." Thesis, Brunel University, 1988. http://bura.brunel.ac.uk/handle/2438/5767.
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This thesis examines in detail the operation of a planning gain policy in the London Borough of Tower Hamlets between 1971 and 1983, using data obtained from records held at the Borough and observations of the practice. The practice of planning gain is set into the broader context of planning and the still broader social and political context. The existing literature and definitions of planning gain are critically examined in the light of a theoretical framework which concerns itself with the identification of power and politics within the planning process. The responses made to the practice of planning gain by the Department of the Environment, planning inspectors and the courts are explained and critically analysed to indicate the lack of articulated opposition. The use of planning agreements as a mechanism for the enforcement of planning gain is also examined. Section 52 of the Town and Country Planning Act is analysed, together with the available case law. The use of these agreements in Tower Hamlets is discussed in detail. The schemes examined at Tower Hamlets are presented in full to provide an overall view of the operation of a planning gain policy. Details include the effect of negotiation on the content of schemes and problems of implementation. Comparative material is provided covering the operation of a planning gain system which has legislative recognition in Sydney, Australia. This part of the thesis is used to illustrate the continued existence of negotiation for planning gain and of the restrictive responses to the autonomy of local government.
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Graaf, Michael. "Babel's Tower: South Africa's Wikipedias." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31291.
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This dissertation is a comparative examination firstly of usage of, and contribution to, the Wikipedias in ten of South Africa’s eleven official languages, and secondly of possible measures to address the situation discovered in the first investigative stage. The historical context is reviewed and it is argued that the number of official languages (and therefore Wikipedias) results from decisions made in colonial and apartheid eras. Public-domain usage and contribution statistics from the Wikimedia Foundation are analysed, revealing poor growth in most cases; possible interventions via both cultural/educational strategies and technological options are reviewed.
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Ball, Cory BH. "The Apprentices' Tower of Hanoi." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etd/2512.
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The Apprentices' Tower of Hanoi is introduced in this thesis. Several bounds are found in regards to optimal algorithms which solve the puzzle. Graph theoretic properties of the associated state graphs are explored. A brief summary of other Tower of Hanoi variants is also presented.
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Devesse, Wim. "Slew control methods for tower cranes." Thesis, KTH, Maskinkonstruktion (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99290.
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Today, tower cranes are in widespread use on construction sites all around the world. An important issue that arises when operating these cranes is the oscillatory behavior that occurs during payload transportation, which can have severe effects on safety as well as accuracy of payload delivery. Due to the nonlinear nature of the rotating crane motion, controlling these oscillations is a complex task. Additionally, the lack of sensors on many cranes that are in use today requires extra effort to design effective control strategies. While current research has made good progress on the subject of tower crane control, less attention has been given to the practical implications of applying these control methods to industrial tower cranes. This thesis provides a comparison of some of the best possible tower crane control strategies that can be achieved using modern control concepts. A performance analysis as well as a more practical comparison through a real-time tower crane simulator will give a deeper insight into the theoretical and practical limitations of these methods.Tornkranar anv¨ands p°a byggarbetsplatser ¨over hela v¨arlden. En egenskap hos dessa kranar som oftast inte ¨ar ¨onskv¨ard ¨ar det oscillerande beteendet av lasten under f¨orflyttningen. Detta har en negativ p°averkan p°a s¨akerheten och positionsnoggranheten av lasten. P°a grund av den ickelinj ¨ara karakt¨aren av den roterande r¨orelsen av tornkranen ¨ar det sv°art att h°alla sv¨angningarna under kontroll. Likas°a saknas sensorer i m°anga kranar vilket g¨or det extra sv°art att utveckla en effektiv styrstrategi. Den senaste forskningen har lett till ett antal framg°angsrika metoder f¨or kontroll av tornkranar, men mindre uppm¨arksamhet har ¨agnats°at de praktiska implikationerna av till¨ampningen av dessa metoder p°a industriella tornkranar. Det h¨ar examensarbetet ger en j¨amf¨orelse av n°agra av de mest lovande moderna teknikerna f¨or kontroll av tornkranar. En prestandaj¨amf¨orelse och en mer praktisk j¨amf¨orelse med hj¨alp av en realtids-kran-simulator ger en djupare insikt i de teoretiska och praktiska begr¨ansningarna av de olika metoderna.
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Iwatsubo, Tomoko. "Constructing the tower : Yeats as architect." Thesis, University of York, 2015. http://etheses.whiterose.ac.uk/13443/.
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W.B. Yeats’s tower, the most “visible” symbol in his work, is a product of his concerted labour over more than a decade. It marks a crucial phase of Yeats’s poetic career in the wake of Responsibilities and the Easter Rising. The Rebellion and its repercussions both public and private acted as a catalyst for the inception of his “tower project” in the period of dramatic personal and national transformation. This study focuses around the genesis and gradual elaboration of Yeats’s tower, the sheer work that went into its creation as well as the repeated pattern of interaction between Yeats’s agency and contingency in his poetic construction in the period leading up to The Tower and beyond. This biography of Yeats’s tower traces the development of the architectural dimension of Yeats’s later poetry, setting it against the poet’s parallel reconstruction of the particular building, Thoor Ballylee. The thesis illuminates the ways in which Yeats’s tower poetry evolved into his major poetic project, a landmark and cornerstone of his later work, with its grand scope gradually unfolding even to the poet himself. Combining the poet’s biography with genetic analyses of all the tower-related poems from The Wild Swans at Coole (1919) to The Winding Stair and Other Poems (1933), including explorations of materials which have hitherto tended to be overlooked on this supposedly well-trodden ground, the thesis casts an unfamiliar light on the tower, one of the most familiar landmarks of modern poetry, and highlights its chronologically changing picture—moving “[m]inute by minute,” as it were, shadowed by Irish conflicts. The thesis also demonstrates how closely interwoven different kinds of “building”—literal, textual, political and symbolic—were in Yeats’s life and work during the turbulent and transformative years following the birth of “terrible beauty.”
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Shi, Yongjiu. "Dynamic behaviour of guyed tower platforms." Thesis, Heriot-Watt University, 1989. http://hdl.handle.net/10399/958.
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Samuel, Mark Wycliffe. "The Tower houses of West Cork." Thesis, University College London (University of London), 1998. http://discovery.ucl.ac.uk/1317856/.
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This is a study of the local development of Irish Tower houses in West Cork that were built between c.1400-1650; these buildings were mostly built by Gaelic clans or Hibernicised Norman families. The study is based on fieldwork and published historical research. A corpus of individual tower house reports provide the raw data. The purpose has been to date these structures by reconstructing the development of their layout. The internal layout of these features is analysed in terms of function; apparent role changes indicated by these are related to changes in Gaelic society known from text-based research. Where possible, inferences are made from the layout of the regional tower houses to better understand the role they played in Gaelic society. The western part of the Survey region has an exceptionally high concentration of fifteenth-century tower houses. These 'raised entrance' tower houses are argued to be an archaic form directly inspired by relic Anglo-Norman hall houses; another ancestral form in the east part of the Survey region is the 'refuge tower'. The role of the tower house and its associated settlements in post-medieval seigneurial settlement and Gaelic/planter interaction is discussed. Sophisticated construction technology, including the systematic use of ratios and units, has to be considered against perceived notions of Gaelic society. The relationship of tower house construction to a wave of Friary construction in the Fifteenth Century is considered; it is argued that an undocumented fifteenth-century economic boom and population expansion in the Gaelic regions was connected with a need for the elite to define land holdings; the latter was an important departure from traditional Gaelic social organisation. The importance of 'castle studies' as a major tool of Irish archaeology is emphasised and possible inter-disciplinary avenues for further research are suggested.
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Donnelly, Colm J. "The tower houses of County Limerick." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321182.
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Pretorius, Johannes Petrus. "Solar Tower Power Plant Performance Characteristics." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16413.
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Thesis (MScIng)--University of Stellenbosch, 2004.ENGLISH ABSTRACT: This study investigates energy generation by large-scale solar tower power plants. The performance characteristics of a so-called reference plant with a 4000 m diameter glass collector roof and a 1500 m high, 160 m diameter tower are determined for a site located in South Africa. The relevant draught and conservation equations are derived, discretized and implemented in a numerical model which solves the equations using speci ed meteorological input data and determines the power delivered by the plant. The power output of a solar tower power plant over a twenty-four hour period is presented. Corresponding temperature distributions in the ground under the collector are shown. Variations in seasonal generation are evaluated and the total annual electrical output is determined. The dependency of the power output on collector diameter and tower height is illustrated, while showing that greater power production can be facilitated by optimizing the roof shape and height. The minor in uence of the tower shadow falling across the collector is evaluated, while the e ect of prevailing winds on the power generated is found to be signi cant.
AFRIKAANSE OPSOMMING: Hierdie studie ondersoek elektrisiteitsopwekking deur grootskaalse sontoringkragstasies. Die uitsetkarakteristieke van 'n sogenaamde verwysings-kragstasie met 'n 4000 m deursnee glas kollektor en 'n 1500 m hoë, 160 m deursnee toring word ondersoek vir 'n spesi eke ligging in Suid-Afrika. Die toepaslike trek- en behoudsvergelykings word afgelei, gediskretiseer en geimplementeer in 'n numeriese rekenaarmodel. Die rekenaarmodel los die betrokke vergelykings op deur gebruik te maak van gespesi seerde meteorologiese invoerdata en bepaal dan die uitset gelewer deur die kragstasie. Die uitset van 'n sontoring-kragstasie oor 'n periode van vier-en-twintig uur word getoon. Ooreenstemmende temperatuurverdelings in die grond onder die kollektor word geïllustreer. Die variasie in seisoenale elektrisiteitsopwekking word ondersoek en die totale jaarlikse elektriese uitset bepaal. Die invloed wat die kragstasie dimensies (kollektor deursnee en toring hoogte) op die uitset het, word bestudeer en resultate getoon. Daar is ook bevind dat verhoogde uitset meegebring kan word deur die vorm en hoogte van die kollektordak te optimeer. Die geringe e ek van die toringskadu op die kollektor word bespreek, terwyl bevind is dat heersende winde 'n beduidende e ek op die kragstasie uitset het.
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Золотова, Світлана Григорівна, Светлана Григорьевна Золотова, Svitlana Hryhorivna Zolotova, and Yu S. Potapova. "Pearl River Tower - energy-efficient skyscraper." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/13444.
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Öhman, Johan. "Procedural Generation of Tower Defense Levels." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166594.
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This report aims to present a method for generating levels for tower defense games. Tower defense games are digital strategy games played by defending bases against oncoming enemies that travel along pregenerated paths. The intended way of generating levels was to use Wave Function Collapse and Bézier curves to create paths and then generate a terrain mesh to match the paths using Marching Cubes. This approach was abandoned because it was considered unnecessarily complicated and there was a concern that there would not be enough time to complete a level generation system. The abandoned system was replaced by a system where a terrain mesh is generated first and is then used as the base for generating the paths iteratively where the direction of the path is changing based on a number of different rules. The path generation system was completed with a simple algorithm to decide on the number of enemies and defense towers. The result is a simple tower defense game with a complete but unbalanced system for generating levels. Though the system is unbalanced, it is implemented in a way that allows for balancing to be made. While a change in direction from the original idea was considered necessary, it only means that that approach was too time-consuming for this project, not that the techniques used in the original idea are inappropriate for these purposes.
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Omar, Hanafy M. "Control of Gantry and Tower Cranes." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26044.
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The main objective of this work is to design robust, fast, and
practical controllers for gantry and tower cranes. The controllers are
designed to transfer the load from point to point as fast as
possible and, at the same time, the load swing is kept small
during the transfer process and completely vanishes at the load
destination. Moreover, variations of the system parameters, such
as the cable length and the load weight, are also included.
Practical considerations, such as the control action power, and
the maximum acceleration and velocity, are taken into account. In
addition, friction effects are included in the design using a
friction-compensation technique.
The designed controllers are based on two approaches. In the
first approach, a gain-scheduling feedback controller is designed
to move the load from point to point within one oscillation
cycle without inducing large swings. The settling time of the
system is taken to be equal to the period of oscillation of the
load. This criterion enables calculation of the controller
feedback gains for varying load weight and cable length. The
position references for this controller are step functions.
Moreover, the position and swing controllers are treated in a
unified way. In the second approach, the transfer process and the
swing control are separated in the controller design. This
approach requires designing two controllers independently: an
anti-swing controller and a tracking controller. The objective of
the anti-swing controller is to reduce the load swing. The
tracking controller is responsible for making the trolley follow
a reference position trajectory. We use a PD-controller for tracking, while the anti-swing controller is designed using three different methods: (a) a classical PD controller, (b) two controllers based on a delayed-feedback technique, and (c) a fuzzy logic controller that maps the delayed-feedback controller performance.
To validate the designed controllers, an experimental setup was
built. Although the designed controllers work perfectly in the
computer simulations, the experimental results are unacceptable
due to the high friction in the system. This friction
deteriorates the system response by introducing time delay, high
steady-state error in the trolley and tower positions, and high
residual load swings. To overcome friction in the tower-crane
model, we estimate the friction, then we apply an opposite
control action to cancel it. To estimate the friction force, we
assume a mathematical model and estimate the model coefficients
using an off-line identification technique using the method of
least squares.
With friction compensation, the experimental results are in good
agreement with the computer simulations. The gain-scheduling
controllers transfer the load smoothly without inducing an
overshoot in the trolley position. Moreover, the load can be
transferred in a time near to the optimal time with small swing
angles during the transfer process. With full-state feedback,
the crane can reach any position in the working environment
without exceeding the system power capability by controlling the
forward gain in the feedback loop. For large distances, we have to
decrease this gain, which in turn slows the transfer process.
Therefore, this approach is more suitable for short distances. The
tracking-anti-swing control approach is usually associated with
overshoots in the translational and rotational motions. These
overshoots increase with an increase in the maximum acceleration
of the trajectories . The transfer time is longer than that
obtained with the first approach. However, the crane can follow
any trajectory, which makes the controller cope with obstacles in
the working environment. Also, we do not need to recalculate the
feedback gains for each transfer distance as in the
gain-scheduling feedback controller.Ph. D.
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Carpenter, Cathy L. "Sexual harassment in the ivory tower." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-09052009-040704/.
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Wesson, John W. "The Tower: Constructing a 3D Scene." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/honors/226.
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This thesis describes the process of creating a 3D environment from the initial concept to the final scene. It discusses relevant research into new technology in the field of real-time rendering, including Physically Based Rendering and a synced normals workflow. It examines how the goals of the project changed over time and how the associated challenges were resolved. Conclusions are drawn about what practices were most successful, and how the development process could be improved.
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Hertl, David. "Vychystávací jednotka skladovacího systému Multi tower." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230086.
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This Diploma thesis deals with design of the drive and frame of the face and side picking unit of the Multitower storage system, and deals with their strength analysis. The first part of the thesis is the research part and deals with the picking unit´s conception, power options, drive solutions, carriage and safety elements. The thesis also deals with the solution of the wheel´s passive resistance, drive and brakes of both picking units. There are designed appropriate solutions on the basis of the results. The final part of the thesis contains the description of the picking unit structure and the strength analysis.
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Ehlers, Frederik Coenrad. "Condition-based monitoring of natural draught wet-cooling tower performance-related parameters." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17904.
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Thesis (MScEng)--Stellenbosch University, 2011.ENGLISH ABSTRACT: The meteorological conditions at Eskom’s Majuba Power Station are measured, evaluated and trended in this dissertation. The results are used to evaluate the current natural draught wet-cooling tower (NDWCT) design- and performance test specifications and to compare these to the original design- and performance test specifications. The evaluation reveals that the design parameters for the NDWCTs at Majuba Power Station, a cooling system that was originally designed optimally, could have been determined differently and arguably more accurately by using the wet-bulb temperature (Tawb) as the main design variable instead of the dry-bulb temperature (Ta). A new technique to determine optimal NDWCT design and performance test conditions is consequently proposed. In order to satisfy the atmospheric conditions required for a successful NDWCT performance test, it is also proposed that the tests be undertaken between 12:00 and 14:00 during Summer. It is found that the NDWCT inlet Tawb, measured at specific heights, does not compare well to the far-field Tawb measured at the same heights when a Tawb accuracy of 0.1 K is required. It is proposed that a more representative far-field Tawb measuring height of 10 m should be used in future NDWCT designs as the NDWCT design temperature reference height. The industry-standard reference height should, however, still be used during temperature profile calculations. A parametric study of the water-steam cycle and wet-cooling system at Majuba indicates that during full load conditions, the generated output (Pst) is primarily dependent on the condenser saturation pressure (pc). The latter is reliant on Tawb, the temperature lapse rate (LRT) that is represented by the temperature profile exponent (bT), the main cooling water flow rate (mcw), atmospheric pressure (pa), and wind speed (VW). Using historical plant data relatively simple methods, enabling the quick and effective determination of these relationships, are proposed. The plant-specific and atmospheric parameters required for these analyses are also tabulated. Two NDWCT effectiveness models, one mathematical (Kröger, 1998) and one statistical artificial neural network (ANN) model are presented and evaluated. ANNs, which are not often used to evaluate NDWCT effectiveness, provide accurate NDWCT temperature approach results within 0.5 K of measured values for varying dependent variables. This motivates that an ANN, if set up and used correctly, can be an effective condition-monitoring tool and can be used to improve the accuracy of more empirical NDWCT performance models. The one-dimensional mathematical effectiveness model provides accurate results under NDWCT design conditions. The dependency of Majuba’s NDWCT to the rain zone mean drop diameter (dd) is evaluated by means of the one-dimensional mathematical model. A reduction in dd from 0.0052 m to 0.0029 m can reduce the NDWCT re-cooled water temperature (Tcwo) so that the rated pc is reduced by 0.15 kPa, which relates to a combined financial saving during peak and off-peak periods of R1.576M in 2013 and R1.851M in 2016. Similar improvements can result in higher savings at other wet-cooled stations in the Eskom fleet due to less optimally-designed wet-cooling systems. The proposed techniques should be considered in future economic evaluations of wet-cooling system improvements at different power stations.
AFRIKAANSE OPSOMMING: Die meteorologiese toestande by Eskom se Majuba-kragstasie is deur die navorser gemeet en -evalueer. Die resultate word gebruik om die Natuurlike-trek, Nat koeltoring (NTNKT) se ontwerp- en werkverrigting toetsspesifikasies te evalueer en vergelyk met die oorspronklike toetsspesifikasies. Die resultate dui daarop dat die ontwerpsparameters vir die NTNKTs by Majuba-kragstasie, ‘n verkoelings-sisteem wat aanvanklik optimaal ontwerp is, op ‘n ander, selfs meer akkurate manier bepaal kon word deur die natbol-temperatuur (Tawb) te gebruik as die hoof-ontwerpsparameter inplaas van die droëbol temperatuur (Ta).’n Nuwe tegniek wat gebruik kan word om akkurate NTNKT ontwerp- en werkverrigting toetsspesifikasies te bepaal word voorgestel. Die tydperk vir die mees optimale atmosferiese toestande, wanneer NTNKT-toetse uitgevoer moet word, word vasgestel as tussen 12:00 en 14:00 tydens Somermaande. Dit word bewys, vir ’n Tawb akkuraatheid van 0.1 K, dat die NTNKT inlaat-Tawb, gemeet by verskillende hoogtes, nie vergelykbaar is met Tawb wat ver van die NTNKT af op dieselfde hoogtes gemeet word nie. ’n Meer aanvaarbare hoogte van 10 m word voorgestel as die NTNKT ontwerpstemperatuur verwysingshoogte vir toekomstige NTNKT ontwerpe wanneer die Tawb ver van die NTNKT af meet word. Die industrie-standaard temperatuur verwysingshoogte moet wel steeds gebruik word tydens temperatuur-profielberekeninge. ’n Parametriese studie van die turbine se water-stoom siklus en die nat-verkoelingstelsel by Majuba dui daarop dat die generator se uitset (Pst) hoofsaaklik afhanklik is van die kondensator se druk (pc) gedurende vol-vrag toestande. Druk (pc) is weer afhanklik van Tawb, die temperatuur vervaltempo (LRT) wat voorgestel word deur die temperatuur profiel eksponent (bT), die verkoelingswater-vloeitempo (mcw), atmosferiese druk (pa) en windspoed (VW). Deur die gebruik van historiese data word redelike eenvoudige metodes voorgestel om dié verhoudings doeltreffend te bepaal. Die atmosferiese- en stasie-spesifieke parameters wat benodig word vir dié ontleding is ook getabuleer. Twee modelle vir NTNKT-effektiweit, ’n wiskundige (gebaseer op Kröger, 1998) en statistiese kunsmatige neurale-netwerk (KNN) model, word aangebied en geëvalueer. KNNe, wat nie gereeld gebruik word om NTNKTe se effektiwiteit te evalueer nie, lewer akkurate NTNKT temperatuur-benadering resultate binne 0.5 K van die gemete resultate vir wisselende afhanklike parameters. Dié resultate motiveer dat ’n KNN wat korrek opgestel is doeltreffend gebruik kan word om die toestand van NTNKTs te bepaal en om die akkuraatheid van ander NTNKT-modelle te verbeter. Die eendimensionele, wiskundige model lewer akkurate resultate onder NTNKT ontwerpspesifikasies. ’n Wiskundige NTNKT-model word gebruik om die afhanklikheid van Majubakragstasie se NTNKTe tot die reënsone druppelgrootte (dd) te bereken. 'n Vermindering in dd van 0,0052 tot 0,0029 m kan die NTNKT se afgekoelde watertemperatuur (Tcwo), van só 'n aard verlaag dat pc verminder met 0,15 kPa. Só kan ’n gesamentlike vol- en gedeeltelike vrag finansiële besparing van R1.576M in 2013 en R1.851M in 2016 behaal word. Soortgelyke verbeterings aan verkoelingstelsels sal lei tot meer en hoër besparings by ander Eskom nat-verkoelde stasies. Dié tegnieke moet in ag geneem word tydens toekomstige ekonomiese evaluasies van verbeterings tot nat-verkoelingstelsels by ander kragstasies.
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Hagen, Torbjørn Ruud. "Numerical Simulations of Flow Past a Truss Tower with an Evaluation of Tower Shadow Models for Wind Turbines." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13726.
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The performance of steady-state tower shadow models for a wind turbine truss tower have been evaluated. The Reynolds-Averaged-Navier-Stokes (RANS) approach, in conjunction with the $k-omega$ Shear-Stress-Transport (SST) model, was used to simulate transient flows past cross sections of a truss tower. The objective was to compare numerical results with Powles', Blevins' and Schlichting's tower shadow models and evaluate their performance on a multimember structure. Parameters for each model have been estimated. It will be shown that the RANS model was able to reproduce realistic results when used in transient simulations on high Reynolds number flows (supercritical regime). The importance of considering unsteady motion when calculating the turbulence intensity, using RANS with transient simulations, will be explained. The multimember extension used for the tower shadow models reproduces the mean velocity profiles quite well, and by using a suitable estimation method, global parameters were found for all models. Additionally, turbulent inflow has been implemented with a user-defined function in Fluent. The results have been evaluated, and show that such such sophisticated inflow modeling is not necessary to predict realistic mean velocity profiles.
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Clements, Neil. "The Ivory Tower and the Control Tower : formalist aesthetics and cultural affiliations in British abstract art, 1956-1968." Thesis, Glasgow School of Art, 2017. http://radar.gsa.ac.uk/5606/.
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This thesis addresses British art of the late 1950s and 1960s, and specifically traces how formalist aesthetics and broader cultural factors influenced abstract art being made at this time. As such it is concerned with defining how particular artworks, while not depicting the environment in which they were produced, can still be demonstrated to embody it through other means. Opposing a binary separation of pop figuration and formalist abstraction prevalent in other scholarship dealing with the period, this text instead outlines a scenario where formalist strategies of art-making were themselves ideologically predicated on a number of other societal factors. These factors include the semantic economy underpinning the field of branded advertisement, the increasingly afunctional appearance of industrially styled commodities, and an image of ‘classless’ professionalism cultivated to combat an existing political Establishment. Additionally, this study includes an examination of the influence exerted on British abstraction by American sources, and revisits the critic Norbert Lynton’s observation regarding the ‘Mid-Atlantic’ position many practitioners found themselves occupying stylistically. At the heart of such an enquiry is an attempt to account in concrete terms for characteristics differentiating British artwork from that being produced elsewhere. It is structured as three chapters, looking at the work of Richard Smith at a time during which he was resident in both London and New York, that of a number of sculptors who participated in the Whitechapel Art Gallery exhibition New Generation 1965, and the development of Jeremy Moon’s painting practice. Brought together these three case studies combine to suggest an autonomous and vital sensibility, one quite distinct from developments being made either in Continental Europe or the United States.
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Jeoung, Ji-Young. "An analysis of Joan Tower's solo keyboard works." Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/778.
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Mang, Yiu-wing. "Branding a label through architecture Giordano Tower /." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B31987217.
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Roback, Mattias, and Elias Ericson. "Tower Defence baserad på Derby och HTML5." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96769.
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Vi kommer i denna rapport undersöka hur ramverket Derby kan användas inom spelutveckling tillsammans med HTML5 och CSS3. Derby är ett MVC-ramverk som bygger på Node.js. MVC (Model View Controller) är ettdesignmönster som används inom systemutveckling. Designmönstret separerar presentationslagret och datalagret genom att införa en komponent emellan som kallas controllern. Det Derby framförallt tillför till Node.js är synkronisering av data mellan servern och klienten. Är det möjligt att med hjälp av dessa tekniker programmera ett spel av typen tower-defence? Syftet med denna rapport har varit att, med Erik Berglund som beställare, utveckla ett spel från en innovation av spelgenren tower-defence, detta med hjälp av ramverket Derby tillsammans med Javascript, HTML5 och CSS3.Huvudidén är att spelet aldig ska ta slut. Är det möjligt att programmera detta med hjälp av dessa ramverk och tekniker? Hur blir prestandan om spelet genererar nytt material konstant? Vi kommer att gå igenom hur vi har använt oss av dessa tekniker och vilka algoritmer vi har använt oss av för att utveckla och realisera de speldesignidéer som Erik tillfört.
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Stout, Malcolm Russell Jr. "Cooling Tower Fan Control for Energy Efficiency." NCSU, 2003. http://www.lib.ncsu.edu/theses/available/etd-05082003-122724/.
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This thesis evaluates the economics of alternative cooling tower capacity control methods. Annual fan electrical energy requirements are calculated for towers with single-speed, two-speed, and variable-speed fans. Fan energy requirements are determined for counter-flow and cross-flow towers designed for low initial cost and for energy efficiency. Effectiveness-NTU equations are solved to predict cooling tower performance at various fan speeds. Natural convection, which determines the cooling capacity when the fan is off, is accounted for using a mean enthalpy difference. Ambient conditions are simulated using typical meteorological year data for five locations. The results show that potential savings are not strongly dependent on the approach temperature, but do increase with increasing range in colder climates. The potential for saving is greatest for cooling towers designed for low initial cost, and is generally higher in locations where the wet-bulb temperature remains relatively constant throughout the year. Two-speed fans that can operate at half speed are generally more suitable for low-cost cooling towers. Two-speed fans that can operate at two-third speed are better for towers designed for energy efficiency and are generally better when the range exceeds 10 F.
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Madabhushi, S. P. Gopal. "Response of tower structures to earthquake perturbations." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387115.
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Jacobson, Alexander, and Oskar Wik. "Watch Supervisor in a Remote Tower Centre." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-118571.
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Den här rapporten är en utredning och analys av lämpliga arbetsuppgifter och deras nödvändiga verktyg och hjälpmedel för en skiftledare, Watch Supervisor, vid ett framtida center för fjärrstyrda flygledningstorn, Remote Tower. Ett center för fjärrstyrda flygledningstorn är en centraliserad enhet med uppgiften att flygleda och kontrollera flygsäkerheten på och nära en eller flera flygplatser. Utgångspunkten för datainsamlingen har varit intervjuer med verksamma flygledare och skiftledare på LFV, Sveriges statliga verk för flygtrafiktjänst. Studiebesök har även gjorts vid olika enheter, både flygledartorn och radarkontrollcentraler, däribland Sundsvall RTC som är världens första central för fjärrstyrd flygledning godkänd att sättas i drift. Insamlad data har kompilerats och analyserats och en rekommendation presenteras i slutet av denna rapport angående arbetsuppgifter och verktyg för ovan nämnda skiftledare i ett RTC. Resultatet visar att rollen kommer ha stora likheter med befintliga skiftledarpositioner i den svenska flygledningen.
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Mang, Yiu-wing, and 孟耀永. "Branding a label through architecture: Giordano Tower." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31987217.
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Murphy, Ailbhe. "Tower songs : Critical coordinates for collaborative practice." Thesis, Ulster University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.537601.
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This thesis has explored the possibilities within collaborative arts practice for creating an interdisciplinary form of evaluation to address the centrality and complexity of negotiation in collaborative practice. The navigational challenges for artists negotiating this field were considered in light of the critical debates within socially engaged arts practice (Kester, 2004 and 2005; Kwon 2002: Bishop, 2009, Lind 2004 and Doherty 2008) which tend to organise the field along a series of binary oppositions such as: process v product; aesthetics v ethics; participative v collaborative practice and intersubjectivity v autonomy. The cross-city collaborative project I initiated in Dublin called Tower Songs served as the vehicle for a practice-based investigation of my research questions. Tower Songs was concerned with the dynamics of a changing city amplified in the demise of public housing (flat complex) estates across Dublin. The thesis introduced a theoretical frame drawn from feminist and post colonial theory (Rodríguez 2006) in order to examine a series of reflective processes which sought to make sense of the first two years work of Tower Songs. From there an interdisciplinary turn in practice was described where questions of epistemology and knowledge production from within the social sciences encounter those negotiated practices and critical references from socially engaged arts practice. The question of evaluation of collaborative projects was tested from the point of view of this expanding theoretical register by Vagabond Reviews through the review of a large scale community-based street spectacle called the Night of the Dark Angel. That interdisciplinary practice was examined in relation to a post structuralist critique which drew on arguments for the destabilising of voice in qualitative inquiry (Lather, 2009 and 2004; Mazzei, 2009; Mazzei and Jackson, 2009 and Jackson, 2009) The post structuralist critique of voice was explored as a move away from the binary oppositions of art critical debates and the pre-determined linguistic arenas of formal evaluation frameworks in favour of a transversal reading of the collaborative experience.
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Turner, Jessica K. "Projective preservation : reframing Rudolph's Tower for Boston." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/77772.
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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2012.Cataloged from PDF version of thesis. Pages 152-154 blank.
Includes bibliographical references (p. 149-151).
By 2012, the fate of Paul Rudolph's tower in downtown Boston has been in question for years while a vision of a denser city calls for its demolition. Projected development on the site currently argues that to move forward, the existing building must be erased entirely. While progressive at the time of its construction, the outscaled tower is now perceived as obsolete and thus disposable. This brutalist work is representative of a class of buildings in crisis; architects and preservationists must decide quickly how to handle the sometimes fraught histories of the still massive urban infrastructures that are widely being excised from the urban landscape. This thesis questions how to balance the desire for some physical persistance of brutalist architectural ideals with the progressive spirit that marks the architectures of both past and present. The project proposes an aggressive, partial preservation of the Rudolph building that uses the original architecture as a basis for iteration. Investigation of the embedded tensions in preservation practice between the preserved and the intervention reveals space for preservation operations that translate architectures, holding more potential for projection than tactics of simple monumentalization or juxtaposition.
by Jessica K. Turner.
M.Arch.
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Dugger, Daniel (Daniel Keith) 1972. "A Postnikov tower for algebraic K-theory." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85300.
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Silverhult, Primus. "Omplacering av resurser i Tower Defense Spel." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-178607.
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Detta arbete gick ut på att skapa ett stort tower defense spel i 3D där spelaren kan omplacera sina torn. Tanken med omplacering är att det leder till att spelaren blir mer aktiv, även när spelet håller på länge. Spelet spelades av olika personer och det mättes till vilken grad omplacering skedde och vilken påverkan omplacering har på spelarnas framgång. Resultaten visar på att spelare använder sig omplacering under hela spelets gång. Ur resultaten och datan som mättes gick det inte att med säkerhet avgöra vilken påverkan omplacering har på spelarnas framgång. Detta lämnar rum för vidare utveckling där omplacering är klart essentiell för att spelarna ska spela framgångsrikt.
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Brown, Elizabeth Ann. "Rhyolite Petrogenesis at Tower Mountain Caldera, OR." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3997.
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Tower Mountain Caldera is the main feature of an Oligocene volcanic field located in the Umatilla National Forest, eastern Oregon. It is perfectly suited to investigate models of rhyolite petrogenesis as all of the important rock components for evaluating generation models are present in a single location and thus are presumably related; basalts, intermediate igneous rocks (which consist of older plutons and younger volcanic rocks, which are ~coeval with rhyolites), metamorphic basement rocks of significant grade, and rhyolites of varying composition. The formation of the caldera produced the Dale Tuff, which comprises the intra-caldera and outflow facies. 40Ar/39Ar dating places the age of the tuff at 32.66 ± 0.36 Ma. Post-caldera rhyolites erupted along apparent ring fractures and elsewhere. Radiometric U-Pb dating of zircons from three of these rhyolites yielded ages of 32.167 ± 0.020 Ma (#CH07a), 31.798 ± 0.012 Ma (#TM5), and 31.426 ± 0.016 Ma (#CH08a). All rhyolites at Tower Mountain range from low to high silica varieties. Some of the post-caldera rhyolites are chemically similar to the Dale Tuff, such as sample CH07a, and have compositions typical of rhyolites of calc-alkaline volcanic centers (I-type rhyolites), while others are similar to A-type rhyolites (CH08a and TM5). The ages indicate that the calc-alkaline rhyolites were followed by the A-type rhyolites. The petrogenetic relationships between the various rocks types were evaluated. Partial melt modeling based on experimental melts produced from crustal material indicates that batch partial melting of metamorphosed high silica crustal material modified by the addition of more primitive mafic material by assimilation/contamination is the most likely source for the Tower Mountain rhyolites.
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Hrubá, Denisa. "Výšková budova AZ Tower - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227005.
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This master´s thesis is dealing with selected part of the construction technology project of the high-rise building AZ Tower. The main content becomes the realization of supporting gross upper structure. It compiles in detail the most optimal proposal of technological processes, working machines, schedule, control and test plan, occupational safety, environment protection, construction site equipment and last but not least, the coordination of four tower cranes. Apart from the architectural and technically impressive draft of the Czech Republic tallest building it will be interesting to deal with progress of the whole construction. New technologies and elementary construction activities adapting to work at extreme altitudes will be used.
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Bittnerová, Lucie. "Bolt Tower Dolní Vítkovice - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265548.
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The diploma thesis is dealing with selected parts of construction technology project of extension Vysoká pec no. 1 in Ostrava – Vítkovice. This thesis contains detailed elaboration of technological specifications for the construction of structural steel superstructure. For this phase is treated with a draft of mechanical report, inspection and test plan, dealing with traffic routes and itemized budget. There is also processed a proposal of building equipment which is the same for the entire implementation extension of Vysoká pec, a situation of building equipment, technical report of the object, the timetable for the entire project, ecology, health and safety.
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Youssef, Lyndl Thorsen. "Architecture, A Public Engagement with: Purpose, Poetry, Place, Prospect, Program, Principle, Process." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35089.
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The purpose of the Times Square Civic Center is to deal with the street as a living, breathing member of the community just as the street was treated in the Old Town of the 18th Century. The Times Square Civic Center demonstrates ways in which architecture engages its public by allowing visitors to take part in its identification, function and composition as it takes on the aspect of a gentleman.Master of Architecture
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Stevens, David John. "Review of Alternative Construction Methods for Transmission Towers." Thesis, University of Canterbury. Management, Marketing, and Entrepreneurship, 2014. http://hdl.handle.net/10092/8937.
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It is important to ensure that Transpower is prepared to deliver upcoming transmission tower refurbishment projects that are located on sites with difficult access. This project reviews the availability, capability and cost of utilising alternative construction methods and any associated wider issues. The focus of this report is on how Transpower can more effectively utilise helicopters and gin poles for transmission tower erection and material delivery on remote sites.
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Alessi, Lorenzo. "Design of wind tower in existing offshore platforms." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
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Jackets are the most common structures in the Adriatic Sea for extracting natural gas. These structural typologies are suitable for relative low water depth (around 250m) and flat sandy sea floors. Most of them have been built in the last 50 years. When the underground source finishes, these structures should be moved to another location or removed if they reached their design life. Nevertheless, another solution might be considered: change the future working life of these platforms by involving renewable energy and transforming them into offshore wind towers. The present research proposal aims to investigate the possibility of converting actual structures for gas extraction to offshore platforms for wind turbine towers.
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Pescara, Fabrizio. "Augmented Reality Safety Net in Aerodrome Control Tower." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
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In my previous bachelor's thesis I studied an algorithm for the improvement of runway efficiency in normal condition: minimizing the occupation of the runway means serving the greatest number of aircraft with the least possible delay. But other important limitations of airports are the ones in force during low visibility when the number of movements allowed undergoes a relevant reduction. A solution could be the use of technology to support air traffic controllers and pilots to re-establish a good level of situational awareness in order to reduce the limitations in force. In Europe, the technological pillar of the ambitious Single European Sky initiative is the Single European Sky ATM Research project (SESAR). Inside the SESAR project, the RETINA concept is regarding the introduction of augmented reality in aerodrome control tower for the improvement of efficiency and capacity of airports. Within the RETINA concept this thesis aims to study the implementation of new safety nets for aerodrome control tower with the support of augmented reality. This study starts from introduction to air traffic services in order to focus on SESAR project and RETINA concept. Then, concept and graphical solution for Conflicting ATC Clearances Safety Net (CATC) are proposed. Due to Covid-19 pandemic in progress during the thesis work, the implementation and validation activities could not be carried out in RETINA simulator of the University of Bologna labs, so different stand-alone implementation in Unity and validation by questionnaire administered to air traffic controllers are used. This thesis work can be considered as the first iteration in the User-Centered Design process for CATC. After the analysis of the feedback, new iteration in which the design is driven and refined by user-centered evaluation could be setup.
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Bai, Junli. "Creep analysis of the Leaning Tower of Pisa." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0005/NQ29022.pdf.
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