Thesis (M.A.)--University of North Carolina Wilmington, 2008. / Title from PDF title page (viewed September 24, 2008)

Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.

No description available.

United States Lighthouses are being decommissioned by the United States Coast Guard because they are no longer needed as navigational aids. Government agencies and non-profit groups untrained in preservation are assuming control of these aids. These groups need assistance to adequately maintain the lighthouse and prevent major deterioration problems. About 300 managers of lighthouses were contacted for information on how they maintain their lighthouse, including information on shoreline erosion. About 120 replies were received containing maintenance and restoration information, drawings and photographs. The lighthouse system was divided into six geographic regions with similar climatic conditions for closer examination. The replies from the lighthouses regarding common deterioration problems in the construction materials and environmental conditions were used to develop general maintenance guidelines for each geographic region. Lighthouse managers can use these maintenance guidelines to assist them in preserving their lighthouse.Shoreline erosion was examined closely because of its destructive capability. Cape Hatteras Lighthouse in North Carolina was used as a Case Study in combatting erosion. / Department of Architecture

Η παρούσα διατριβή ασχολείται με τον σχεδιασμό και την κατασκευή των φάρων στον Ελλαδικό χώρο και παράλληλα διερευνάται η γέννηση του φαρικού δικτύου. Αρχικά, γίνεται μια εκτενής αναφορά και περιγραφή στους φάρους, παρουσιάζοντας την μορφολογία και τα κατασκευαστικά τους χαρακτηριστικά. Σκοπός της εργασίας είναι η αναζήτηση στοιχείων που αποκαλύπτουν την κατασκευαστική δομή των φάρων και την παθολογία τους σε συνάρτηση με την περίοδο κατασκευής τους καθώς και η προσέγγιση σε μεθόδους αποκατάστασης. Απώτερος στόχος είναι να αναδειχθεί η μοναδικότητα τους ως αρχιτεκτονικών κατασκευών και η συνύπαρξή τους με το περιβάλλον μέσα στο οποίο κατασκευάστηκαν. Οι ενότητες στις οποίες χωρίζεται η παρούσα διατριβή πραγματεύονται το φάρο ως στοιχείο ιστορικής, αρχιτεκτονικής, κατασκευαστικής, λειτουργικής και τεχνολογικής αξίας, και ως μνημείο που σε ορισμένες περιπτώσεις άπτεται της παγκόσμιας πολιτιστικής κληρονομιάς. Σημαντικό μέρος της διατριβής αποτελεί η ιστορική ανασκόπηση της εξελικτικής πορείας των φάρων, από την απαρχή της λειτουργίας τους ως πύργου ανοικτής φλόγας, ως τα τεχνολογικά επιτεύγματα του 18ου αιώνα και την σημερινή μορφή του με δυναμικά χαρακτηριστικά αρχιτεκτονικής προσέγγισης. Η έρευνα επικεντρώνεται σε φάρους οι οποίοι τοποθετούνται γεωγραφικά στην περιοχή της Ελλάδας και για αυτό τον λόγο θα παρουσιαστούν μερικά χαρακτηριστικά παραδείγματα ώστε να γίνει αντιληπτή η αναγκαιότητα που αφορά την αποκατάσταση και τη διατήρηση τους. Αναφέρεται η υπάρχουσα κατάσταση αλλά και οι αιτίες της κατάστασης αυτής. Παράλληλα αναφέρονται μέθοδοι αντιμετώπισης με βασικό στόχο την αποκατάσταση των φθορών και την ανάδειξη των ιδιαιτεροτήτων αυτών των κατασκευών. Διερευνάται ο λόγος για τον οποίο έχει μειωθεί ο αριθμός ενεργών φάρων στην διάρκεια του χρόνου και σε ποια κατάσταση βρίσκονται σήμερα. Εξετάζονται τα αίτια των φθορών που οδήγησαν στην σημερινή τους κατάσταση. Οι προτάσεις αλλαγής χρήσης ενός φάρου εμπεριέχονται στην εργασία ως παράμετροι διερεύνησης επανένταξης τους. Προτείνονται προσεγγιστικά τρόποι προστασίας από την φύση ενώ παράλληλα αναδεικνύεται η αλλαγή χρήσης ως ικανή παράμετρος να σώσει έναν φάρο από την καταστροφή του. Από τους επιδιωκόμενους στόχους της εργασίας είναι με διάγνωση της παθολογίας να επιτευχθεί μία σοβαρή μελέτη αποκατάστασης ενός φάρου και πρόσθετα η γνώση που αποκομίζεται από την υπάρχουσα τεχνογνωσία ώστε ο σχεδιασμός ενός νέου να αντανακλά την αρχιτεκτονική και λειτουργική του οντότητα. Η εξέταση του ιστορικού παρελθόντος, της κατασκευαστικής τεχνολογίας και αρχιτεκτονικής τυπολογίας κρίνεται απαραίτητη ώστε να γίνει κτήμα του ερευνητή και να καλύψει τις ανάγκες για την αποκατάσταση, διατήρηση και επανάχρηση εντάσσοντας την ύπαρξη του στα σύγχρονα δεδομένα . Στη δομή της εργασίας γίνεται αντιληπτό ότι η έννοια του φάρου δεν στέκεται μόνο στον παραδοσιακό πέτρινο φάρο που είναι η πρώτη σκέψη στο άκουσμα της λέξης φάρος, αλλά στο ότι ο φάρος σήμερα μπορεί να έχει και μία νέα παράλληλη ίσως έννοια μέσω των χρήσεων που θα μπορεί να αναλάβει πέρα από το τεχνικό μέρος της φωτοβολίας. Στην εργασία γίνεται κατηγοριοποίηση των φάρων σε χαρακτηριστικές ενότητες κρίνοντας ότι είναι πρωταρχικής σημασίας για την αξιολόγηση των ενεργειών που ακολουθήθηκαν και των ενεργειών που θα ακολουθήσουν στο μέλλον για την διατήρηση, επισκευή και επανάχρηση. Τέλος παρουσιάζονται εμπεριστατωμένα γενικά συμπεράσματα για τις παραμέτρους διατήρησης και ανάδειξης του ελληνικού φαρικού δικτύου. / The present thesis deals with the planning and the manufacture of lighthouses in the Hellenic space and at the same time is investigated the birth of lighthouse network. Initially, become a extensive report and description in the lighthouses, presenting morphology and constructional characteristically. Aim of work is the search of elements that reveals the constructional structure of lighthouses and their pathology in connection with their period of manufacture as well as the approach in methods of re-establishment. Final objective is to electe their uniqueness as architectural manufactures and their coexistence with the environment in which they were manufactured. The units in which is separated the present thesis deal with the lighthouse as element historical, architectural, constructional, functional and technological value, and as monument that in certain cases is related to the world cultural heritage. Important part of thesis constitutes the historical examination of evolutionary course of lighthouses, from the beginning of their operation as tower of open flame, as the technological realizations of 18th century and his current form with dynamic characteristics of architectural approach. The research is focused in lighthouses which are placed geographically in the region of Greece and for this reason will be presented certain characteristic examples so that becomes perceptible the necessity that concerns the re-establishment and their maintenance. Are reported the existing situation but also the causes of this situation. At the same time are reported methods of confrontation with fundamental objective the re-establishment of deteriorations and the appointment of these particularities of manufactures. Is investigated the reason for which has been decreased the number of active lighthouses in the duration of time and in who situation they are found today. Are examined the reasons of deteriorations that led to their current situation. The proposals of change of use of lighthouse are included in the work as parameters of their investigation of rehabilitation. Are proposed approximate ways of protection from the nature while at the same time is elected the change of use as capable parameter to save a lighthouse from his destruction. From the sought objectives of work it is with diagnosis of pathology is achieved a serious study of re-establishment of lighthouse and moreover the knowledge that is acquired by the existing know-how in order that the planning of young person reflects his architectural and functional entity. The examination of historical past, constructional technology and architectural typology is judged essential so that becomes property of researcher and cover the needs for the re-establishment, maintenance and refurbisment including his existence in the modern data. In the structure of work he becomes perceptible that the significance of lighthouse does not stand only in the traditional stone lighthouse that is the first thought in the hearing of word lighthouse, but in that the lighthouse today can have also a new parallel perhaps significance via the uses that it might undertake beyond the technical part. In the work become categorization of lighthouses in characteristic units judging that it is fundamental importance for the evaluation of energies that was followed and energies that will follow in the future for the maintenance, repair and refurbisment. Finally are presented thoroughly in general conclusions on the parameters of maintenance and appointment of Greek lighthouse network.

Coastal regions are very important because they provide a lot of resources and benefits for all the humankind. Coastal defense structures protect coastal regions from wave attacks. However, the cost of construction such coastal defense structures are very high and need big investments. Hence, to reach the optimum design and minimize the risk of failure has vital importance during the design stage of these structures. Model studies are the most effective tool in optimizing the design of these structures. Rubble mound coastal defense structures were constructed with assembly of different sizes of armor stones and front slopes. Rubble mound coastal defense structures were designed by Van der Meer

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It is well known that, socioeconomic development in coastal regions is in many respects are more rapid than elsewhere. The rapid development has been the outcome of recognition of these regions as a means providing ideal conditions for relatively cheap transport, food and mineral resource, petroleum, natural gas, agricultural and industrial development, housing and recreation, etc. Therefore, coastal areas are under threat due to forcing function of human activities. A novel technique addressed scenic evaluation through application of fuzzy logic methodologies to values obtained from checklist that itemized 26 human and physical parameters rated on five-point attribute scale. The methodology enabled calculation of an Evaluation Index (D) which categorizes all sites and statistically best described attribute values in terms of weighted areas. The methodology developed for coastal scenic evaluation using Fuzzy Logic Approach (FLA) is a very useful tool in making future management plans for coastal areas by simulating different human usages. With regard to coastal zone management this technique is suitable for evaluating future potential changes especially with regard to influence of coastal structures on the coastal scenery. This work will hopefully be utilized by coastal mangers, planners, academics, governmental agencies, as to improve the especially human usage of the coastal areas also this work will be a tool for the preservation and conservation and the sustainable development of the coastal areas. For the pilot site, &Ccedil / irali, D values are calculated and corresponding classes are found for different attributes of parameters rising from the human usage.

Made available in DSpace on 2015-05-14T12:17:22Z (GMT). No. of bitstreams: 1 parte1.pdf: 2021650 bytes, checksum: d545a008e910364763de134664202bf5 (MD5) Previous issue date: 2010-06-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This dissertation is aimed to analyze the changes observed in the social uses of lighthouses along the northeast coast of Brazil. We aim to develop geographical and historical approaches to better understand how these monuments have been used at present, within the new social demands were at the beginning of the XXI century. To perform the analysis we organized a historical retrospective on the occupation and use of coastal areas of Brazil, along with theoretical studies concerning the category of territory, fundamental to our discussions. We emphasize that, in addition to desk research, our study consisted of field research, where we could observe the interactions between local people and the headlights. We believe that this research was justified as it helped to organize a scientific knowledge on the subject, generating theoretical support to re-interpret the headlights while coastal monuments and heritage materials from Brazil. Finally, we found that besides material wealth, the lamps can be interpreted as cultural heritages of people living on the Brazilian coast. / Esta dissertação tem como objetivo central analisar as transformações verificadas nos usos sociais dos faróis marítimos do litoral nordestino do Brasil. Objetivamos desenvolver abordagens geográficas e históricas para compreender melhor como estes monumentos tem sido utilizados na atualidade, dentro das novas demandas sociais vigentes no início do século XXI. Para realizar a análise organizamos uma retrospectiva histórica sobre a ocupação e uso dos espaços costeiros do Brasil, juntamente com estudos teóricos referentes à categoria de território, fundamental para nossas discussões. Enfatizamos que além da pesquisa documental, nosso estudo foi composto por pesquisas de campo, onde pudemos observar as interações entre as populações locais e os faróis. Entendemos que esta pesquisa se justificou na medida em que contribuiu para organizar um conhecimento cientifico sobre o tema, gerando subsídios teóricos para re-interpretar os faróis enquanto monumentos costeiros e patrimônios materiais do Brasil. Por fim, pudemos constatar que além de patrimônios matérias, os faróis podem ser interpretados como patrimônios culturais de populações que vivem na costa brasileira.

This thesis deals with delay prediction issue between nodes on the Internet. Accurate delay prediction helps with choosing of the nearest internet neighbor and contributes to effective usage of network sources. Unnecessary network load is decreased due to algorithms of delay prediction (no need for many latency measuring). The thesis focuses theoretically on the three main algorithms using coordinate systems - GNP, Vivaldi, Lighthouses. Last one is at the same time the main subject of the thesis too. Algorithm Lighthouses is explored in detail theoretically and in practise too. In order to verify the accurate of delay prediction of Lighthouses algorithm the simulation application was developed. The application is able to compute node coordinates of synthetic network using Lighthouses algorithm. Description of simulation application and evaluation of simalution results are part of practice part of this thesis.