In recent years, the number of renovations of apartment buildings from the Swedish million homes programme has increased significantly. The renovations have resulted in major increases in standard of the apartments built half a century ago, and has thus resulted in substantial rent increases. In the past, the so called “Allbolag” prevented private property owners from charging rents above market rents, since the public property sector was rent normative. Since this law was amended in 2011, a greater interest was shown in the renovation of million programme apartment buildings since extensive renovations got more profitable than ever before. With a major rent increase as a result of the renovations it is a hot topic in the Swedish housing policy debate. Opinions differ in the debate where property owners see opportunities for increased value and profit in the properties, while the individual tenant has to deal with major rent increases, which in some cases rises up towards 80 percent. The tenants affected by the extensive renovations, and thus also the significant rent increases that follow, are affected not only economically but also on a personal and social level. People living in million programme apartments are fully aware of the consequences of a major refurbishment, and they also know that they have no power to influence the outcome or extent of the actions. This causes mental and, in some cases, physical stress on the individuals who have to live with the knowledge of that they eventually might be forced to move from their homes because of their inability to pay the rent. Your home is a hub for everything that is essential in life and it is where social networks of family, relatives and friends, work, school, health care and more are maintained, but when your home ceases to be a place where you can feel safe and secure it affects every factor in these networks. The purpose of this paper is to describe and explain how a rent-setting process after an extensive renovation of Swedish million programme homes is conducted, and to describe how the affected tenants' well-being, in terms of anxiety and insecurity, are affected by this process. To achieve the purpose, we have conducted a qualitative survey through personal interviews which covers two tenants both of whom are affected by the problem, and two individuals who, on a daily basis, work with this problem and are well versed in the subject. Results that emerged from the study is that the rent setting system in the case of extensive renovations are not adapted for today's housing market, and that it therefore poses a problem. Tenants are virtually powerless when it comes to renovations of their apartments and their choices are to either keep their home and try to cope with the new rent, or move to a cheaper area which has not yet been renovated. The entire process, starting when the tenant learns about the planned renovation, until the project is completed has been shown to cause psychological problems for the individual, no matter if he chooses to stay put or move away. The study also shows that tenants undergoing a renovation process feel insecure in their home and that they also feel anxious and worried about the future of their living situation. / På senare år har antalet renoveringar av flerbostadshus från miljonprogrammet ökat markant. Renoveringarna har medfört stora standardhöjningar i de över 50 år gamla lägenheterna, och har därmed resulterat i kraftiga hyreshöjningar. Tidigare hindrade Allbolagen privata fastighetsägare från att ta ut oskäligt stora hyresbelopp eftersom de allmännyttiga fastighetsbolagen då var hyresnormerande, men sedan denna lag ändrades år 2011 har ett större intresse för renoveringar av miljonprogrammets flerbostadshus väckts. Omfattande renoveringar är i dagsläget än mer lönsamma än tidigare, och med kraftiga hyreshöjningar som följd är det ett hett debatterat ämne i media. Åsikterna går isär i debatten där fastighetsägare ser möjligheter till ökat värde och vinst i fastigheterna, medan den enskilde individen tvingas på hyreshöjningar som i vissa fall blir så kraftiga som upp emot 80 procent. De hyresgäster som berörs av omfattande renoveringar, och därmed också de markanta hyreshöjningar som följer av dem, påverkas inte bara ekonomiskt utan även på ett personligt och socialt plan. Boende i miljonprogramslägenheter vet vad konsekvenserna av en omfattande renovering blir, och de vet också att de själva inte har någon chans att påverka resultatet eller omfattningen av den. Detta innebär en psykisk och, i vissa fall, fysisk påfrestning på individerna som tvingas leva med vetskapen om att de så småningom kan tvingas flytta ifrån sina hem på grund av oförmåga att betala hyran. Hemmet är en knytpunkt för allt som är centralt i livet och det är därifrån kontaktnätet till familj, släkt och vänner, arbete, skola, sjukvård med mera utgår, och när hemmet upphör att vara en plats där man kan känna sig trygg och säker i sin tillvaro påverkar det samtliga faktorer i detta kontaktnät. Syftet med denna uppsats är att beskriva och förklara hur en hyressättningsprocess efter en omfattande renovering gällande flerbostadshus från miljonprogrammet går till, samt redogöra för hur de berörda hyresgästernas välmående, sett till oro och otrygghet, påverkas av denna process. För att uppnå syftet har vi genomfört en kvalitativ undersökning vilken genomfördes med hjälp av personliga intervjuer. Undersökningen omfattar två hyresrättsinnehavare som själva är drabbade av problemet samt två personer som dagligen arbetar med detta problem och är väl insatta i ämnet. Resultat som framkommit är att hyressättningssystemet vid omfattande renoveringar inte är anpassat för dagens bostadsmarknad och att det därmed medför problem. Hyresgäster är i stort sett maktlösa när det kommer till renoveringar av deras lägenheter och deras val står mellan att bo kvar och försöka klara av den nya hyran, eller flytta till ett billigare område som ännu inte renoverats. Hela processen från det att hyresgästen får reda på renoveringen tills projektet är genomfört har visat sig medföra psykiska problem för individen oavsett vad denne väljer att göra. Studien visar på att hyresgäster som genomgår en renoveringsprocess känner sig otrygga i sin hemvist och upplever en oro över hur deras framtid kommer att se ut.

L'interférométrie à rétro-injection optique, également connu sous le nom de Self-Mixing, permet de concevoir des capteurs qui sont compacts, auto-alignés et sans contact. Dans ce phénomène, une partie du faisceau laser de retour réfléchi par la cible rentre dans la cavité active de laser et fait varier ses propriétés spectrales. La diode laser agit alors comme une source de lumière, un microinterféromètre ainsi qu'un détecteur de lumière. Dans cette thèse, un capteur de déplacement, basé sur la rétro-injection optique, a été optimisé de sorte que des mesures précises peuvent être obtenues en temps réel. Le capteur est robuste à la disparition des franges de self-mixing pour des vibrations harmoniques. Il est également capable de s'adapter à un changement dans le régime de feedback optique et peut donc extraire le déplacement dans les cas les plus répandus expérimentalement, à savoir un feedback faible puis modéré. L'utilisation de l'optique adaptative, sous la forme d'une lentille liquide, a également été démontrée pour ce capteur, ce qui nous a permis de maintenir le capteur dans un régime de feedback favorable. L'influence du speckle a également été réduite de telle sorte que le capteur mesure jusqu'à la gamme centimétrique pour des cibles non- oopératives. Une nouvelle technique est également présentée, elle permet de rendre le capteur insensible aux vibrations mécaniques parasites qui fausseraient la mesure pour des conditions industrielles. / Optical Feedback Interferometry, also known as Self-Mixing, results in compact, selfaligned and contact-less sensors. In this phenomenon, a portion of the laser beam is back reflected from the target and enters the active laser cavity to vary its spectral properties. The laser diode then simultaneously acts as a light source, a micro- nterferometer as well as a light detector. In this thesis, a self-mixing displacement sensor has been optimised so that precise measurement can be obtained in real-time. The sensor is robust to the disappearance of self-mixing fringes for harmonic vibrations. It is also able to auto-adapt itself to a change in the optical feedback regime and so can extract displacement from the weak as well as moderate feedback regime signals. The use of adaptive optics, in the form of a liquid lens, has also been demonstrated for this sensor, which has allowed us to maintain the sensor in a fringe-loss less regime. The influence of speckle has also been reduced so that the sensor can now measure up to the centimetric range for non-cooperative targets. A novel technique has also been presented that makes the sensor insensitive to parasitic mechanical vibrations that would falsify the measurement under industrial conditions.

Le travail présenté dans cette thèse vise à comprendre les vibrations de pièce mince durant l’usinage. De nombreux travaux proposent des modélisations de ce phénomène, mais des écarts persistent entre résultats de modélisation et réalité. Ce constat nous pousse à nous interroger sur l’emploi dans les modèles des modes propres de la pièce, sans y intégrer le contact de l’outil. Face à l’incapacité de vérifier la validité de cette hypothèse par mesures ponctuelles, la mesure de champ s’impose comme une alternative prometteuse. La deuxième partie du travail porte sur la mise au point d’un protocole expérimental novateur. Il inclut le relevé des déformées vibratoires d’une pièce mince en usinage par mesure de champs de déplacements. La stéréo corrélation d’images numériques se confronte à de nombreuses limitations dans ce contexte. Nous avons développé une méthode de réglage des capteurs permettant de contourner rapidement certaines difficultés. Cette méthode présentée sous forme graphique souligne la nécessité d’optimiser les paramètres de mesure dans un tel contexte. La troisième partie met en oeuvre le protocole de mesures. Le test des capteurs montre le fort intérêt de la mesure sans contact vis-à-vis de l’objectif recherché. Des essais d’usinage sont présentés en se basant sur une modélisation existante du broutement. Les déformées mesurées pendant l’usinage livrent des informations d’un type nouveau. Leur exploitation a impliqué la mise en place d’une procédure spécifique de traitement. La dernière partie présente les analyses de deux usinages. L’étude est effectuée au regard des états de surface obtenus, du comportement temporel, fréquentiel, et spatial. Cette approche souligne les subtilités de la génération d’état de surface en la présence de vibrations. L’examen des mesures de champs permet de relever des incohérences avec l’emploi des modes propres, classiquement utilisés en modélisation. / The work presented in this thesis aims at understanding thin part vibrations during machining. Many works propose modelings of this phenomenon but differencies still exist between modeling results and tests. This observation lead us to wonder about the employment of natural modes of the part in the models, without taking into account the tool presence. The fact that punctual measurements don’t enable to verify the validity of this hypothesis, field measurement prove to be a hopeful alternative. The second part focuses on adjusting a novel experimental protocol. It includes the recording of the thin part vibrating shapes by displacement field measurement. Digital Image Stereo Correlation is confronted to many limitations in this context. We developed a method to set sensors enabling the quick avoidance of difficulties. This method is presented in a graphical form, and underlines the need of optimising measurement parameters in such an environment. In the third part of the work, the measurement protocol is used. The sensors testing shows the high interest of contactless measurement for the aimed goal. Machininng tests are presented in connection with an existing model of chatter. The measured shapes during machining give a new sort of informations. So, their analyse implied the building of a specific processing procedure. The last part presents analyses of two machining tests. The study is done by parallely looking at the machined surface, and the behavior in temporal and frequency space as so as the part displacement fields. This approach underlines subtleties of surface generation under vibration conditions. The fields inspection enables to mark inconsistencies if employing the natural modes that are classically used in models.

Measuring atomic displacement inside crystals has been an important field of interest for decades especially in semiconductor industry for its effect on the crystal structure and symmetry, subsequently on the bandgap structure. There are three different image based, diffraction based, and electron holography based techniques using transmission electron microscope (TEM). These methods enable measuring atomic displacement inside specimen. However, among all TEM techniques offering nano-scale resolution measurements, convergent beam electron diffraction (CBED) patterns show the highest sensitivity to the atomic displacement. Higher order Laue zone (HOLZ) lines split by small variations of lattice constant allowing the atomic displacement measurement through the crystal. However it is a cumbersome measurement and it can only reveal the atomic displacement in two dimensions. Therefore, the atomic displacement information at each depth through the specimen thickness is still missing. This information can be obtained by recovering the phase information across the split HOLZ line. The phase profile across the split HOLZ line can be retrieved by the electron interferometry method. The phase of the diffracted beam is the required information to reconstruct the atomic displacement profile through the specimen thickness. In this work, we first propose a novel technique of self-interference of split HOLZ line based on the diffracted beam interferometry which recovers the phase information across the split HOLZ line. The experimental details of the technique have been examined to report the parameters in order to implement the method. Regarding the novelty of the technique and the lack of the of a reference phase profile to discuss the results, phase profile simulation was a main contribution. For simulating the phase profile across the split HOLZ line the Howie-Whelan formula supporting the kinematical theory of diffraction is used. Accordingly, the analytical approach to simulate the phase profiles across the split HOLZ line for three various suggested atomic displacements are studied. Also, the effect of some parameters such as the atomic displacement amplitude, the specimen thickness, and the g reflection is investigated on the phase profile. This study leads to an equation used for fitting the experimental results with the simulated phase profile. Consequently, self-interference of split HOLZ line (SIS-HOLZ) is studied as a method of reconstructing the phase profile across the split HOLZ line which carries the information of atomic displacement through the specimen thickness. / Graduate / 0548 / 0794 / mananrp@uvic.ca

The understanding of the subjective experience of a visually stable world despite the occurrence of an observer's eye movements has been the focus of extensive research for over 20 years. These studies have revealed fundamental mechanisms such as anticipatory receptive field (RF) shifts and the saccadic suppression of stimulus displacements, yet there currently exists no single explanatory framework for these observations. We show that a previously presented neuro-computational model of peri-saccadic mislocalization accounts for the phenomenon of predictive remapping and for the observation of saccadic suppression of displacement (SSD). This converging evidence allows us to identify the potential ingredients of perceptual stability that generalize beyond different data sets in a formal physiology-based model. In particular we propose that predictive remapping stabilizes the visual world across saccades by introducing a feedback loop and, as an emergent result, small displacements of stimuli are not noticed by the visual system. The model provides a link from neural dynamics, to neural mechanism and finally to behavior, and thus offers a testable comprehensive framework of visual stability.

<p>Stanje Zemljine kore određeno je istovremenim i suprotstavljenim uticajem<br />endodinamičkih i egzodinamičkih procesa. Povr&scaron;inski slojevi omotača<br />Zemljine kore su u stalnom pokretu pod dejstvom uticaja, kao &scaron;to su<br />promena nivoa podzemnih voda, tektonske pojave, klizi&scaron;ta itd. Značajne<br />deformacije mogu se javiti kao posledica niza regionalnih i lokalnih<br />naponskih stanja, posebno u graničnim zonama litosfernih ploča, gde se<br />akumuliraju naponi i javljaju nelinearne innterseizmičke deformacije. U<br />disertaciji je prikazano istraživanje pomeranja Zemljine kore regionalnog<br />karaktera sa geodetskog aspekta, na osnovu ponovljenih opažanja metodom<br />satelitskog pozicioniranja, čime je dat doprinos multidisciplinarnom<br />razumevanju stanja Zemljine kore.</p> / <p>The state of the Earth&rsquo;s crust is determined by the simultaneous and opposed<br />influence of the endodynamic and exodynamic processes. The surface layers of<br />the Earth&rsquo;s crust envelope are in the state of permanent moving due to divers<br />influences, such as the level variation of underground waters, tectonic<br />phenomena, landslides, etc. Significant deformations can arise as a consequence<br />of a number of regional and local strain states, especially in the boundary zones<br />of lithosphere plates where strains are accumulated and non-linear interseismic<br />deformations appear. The subject of the thesis is a study of movements of the<br />Earth&rsquo;s crust of regional character from the aspect of geodesy, on the basis of<br />repeated observations by applying the satellite positioning method. In this way a<br />contribution is given to a multidisciplinary concept of the state of the Earth&rsquo;s crust.</p>

The geological disposal of nuclear waste, in underground openings and the long-term performance of these openings demand a detailed understanding of fundamental rock mechanics. A full scale field experiment: Äspö Pillar Stability Experiment was conducted at a depth of 450 m in sparsely fractured granitic rock to examine the rock mass response between two deposition holes. An oval shaped tunnel was excavated parallel to the σ3 direction to provide access to the experiment and also provide elevated stress magnitudes in the floor. In the tunnel floor two 1.75-m diameter 6-m deep boreholes were excavated so that a 1-m thick pillar was created between them. In one of the holes a confinement pressure of 700 kPa was applied and in the other displacement transducers were installed. The pillar volume was monitored by an Acoustic Emission System. Spatially distributed thermocouples were used to monitor the temperature development as the pillar was heated by electrical heaters. The excavation-induced stress together with the thermal-induced stress was sufficient to cause the wall of the open borehole to yield. The temperature-induced stress was increased slowly to enable detailed studies of the rock mass yielding process. Once the rock mass loading response was observed, the rock mass was unloaded using a de-stress slotting technique. This thesis focuses on the in-situ study of the rock mass response to coupled mechanical thermal loading and thermal-mechanical unloading. The experiment, its design, monitoring and observations are thoroughly described. An estimate of the yielding strength of the rock mass is presented and compared with laboratory test and results from other rock mass conditions reported elsewhere in the open literature. General conclusions about the effect of the confining pressure and the observations from the unloading of the pillar are also presented. Important findings are that the yielding strength of the rock mass has been successfully determined, low confinement pressures significantly affects the onset of yielding, the primary mode of fracture initiation and propagation is extensional, no significant time dependency of the yielding process was observed. The unloading studies also indicated that what appeared to be shear bands likely was a propagating zone of extensile failure that weakened the rock so that displacements in the shear direction could occur. / <p>QC 20100622</p>

This thesis examines the approaches taken by the International Committee of the Red Cross (ICRC) and the Office of the High Commissioner for Refugees (UNHCR) to the protection of civilians during internal armed conflict, both at the level of global policy and at the level of implementation in the Colombian context. The thesis explains how the ICRC and UNHCR approach protection, why each has adopted its particular approach, and how and why the effectiveness of each approach is limited. In doing so, it offers a theoretical framework for explaining the approaches taken by international organizations (IOs) to new tasks within their mandates as well as policy implications for the ICRC, UNHCR and other humanitarian agencies. From a theoretical perspective, this research shows that factors internal to the IO carry greater explanatory power than external factors. Most significantly, when an IO expands into a new issue-area, it frames the new task in terms of the existing tasks within its mandate, replicating the specific goals and the means of pursuing those goals. The extent to which the approach is then adapted to the specificities of the new issue-area depends on the ‘bureaucratic personality’ of the IO, and specifically the extent to which decisions are informed by field-level experience. Internal conflicts by definition include armed non-state actors, and the analysis in this thesis emphasises both their significance in determining civilian security and their neglect in existing approaches to protection. While the ICRC seeks to reduce the threat posed by all armed actors (state and non-state) in its work at the field level, it relies heavily on an international legal framework which prioritises states and this partially undermines its attention to non-state actors at the field level. UNHCR retains a state-centric focus at both the field level and the level of global policy. From a policy perspective, therefore, the thesis advocates greater attention to armed non-state actors both at the level of practice and in the development of protection norms.

Le défi face aux changements climatiques ne consiste pas seulement à gérer les conséquences déjà existantes, mais aussi celles à venir. Les déplacements de population représentent sans aucun doute l’une de ces conséquences, pour laquelle nous devons réfléchir sans délai puisque les déplacements ont déjà débuté. Le Bangladesh est le symbole des déplacements de population reliés aux changements climatiques. Une configuration géographique propice aux désastres naturels, une densité de population élevée, une forte dépendance aux ressources naturelles et d’autres facteurs socio-économiques, constituent les raisons sous-jacentes à la vulnérabilité du Bangladesh. Les médias ont tôt fait d’alarmer la communauté sur les répercussions des changements climatiques sur la société civile et le droit international s’y attarde de façon plus sérieuse. De quelles protections bénéficient ces déplacés climatiques? Cette question fait d’ailleurs surgir de nouvelles problématiques juridiques. Nous nous rendrons vite à l’évidence que les déplacements, qu’ils soient à l’intérieur ou l’extérieur des frontières, ne sont susceptibles d’aucune protection internationale. Face à ce vide juridique, plusieurs propositions ont été envisagées et analysées par les chercheurs. Fuir ou rester : voici les deux choix de la population. Nous verrons que ces choix peuvent être largement influencés par les décisions gouvernementales. Cela nous amènera à nous questionner sur la perception du Bangladesh face à la migration climatique. Ce pays considère-t-il la migration comme une stratégie ou plutôt comme un échec à l’adaptation? / The challenges wrought by climate change involve not only managing existing consequences, but also future ones. It is no surprise that population displacements are one of those consequences, and one that must be addressed as quickly as possible since those displacements have already begun. Bangladesh is a prime example of population displacements linked to climate change; its geography is conducive to natural disasters, it is densely populated and strongly reliant on natural resources. These and other socioeconomic factors are the underlying reasons of Bangladesh’s vulnerability. It did not take long for the media to raise the alarm in the international community about the impacts of climate change on civil society and international law is paying more and more attention to the problem. What protections are available for these climatic exiles? The question raises new legal conundrums. We will quickly discover that such displacements, whether they are domestic or international, have no legal international protection. In light of this legal vacuum, several options have been considered and analyzed by researchers. To go or not to go, that is the question that must be answered by the population. We will discover that this choice can be greatly influenced by government policy. This will shed light on the perception of Bangladesh’s choice in the matter; does the country consider the migration a coping strategy or a failure?

A multiple-sensor optical shape measurement system (SMS) based on the principle of white-light fringe projection has been developed and commercialised by Loughborough University and Phase Vision Ltd for over 10 years. The use of the temporal phase unwrapping technique allows precise and dense shape measurements of complex surfaces; and the photogrammetry-based calibration technique offers the ability to calibrate multiple sensors simultaneously in order to achieve 360° measurement coverage. Nevertheless, to enhance the applicability of the SMS in industrial environments, further developments are needed (i) to improve the calibration speed for quicker deployment, (ii) to broaden the application range from shape measurement to deformation field measurement, and (iii) to tackle practically-challenging surfaces of which specular components may disrupt the acquired data and result in spurious measurements. The calibration process typically requires manual positioning of an artefact (i.e., reference object) at many locations within the view of the sensors. This is not only timeconsuming but also complicated for an operator with average knowledge of metrology. This thesis introduces an automated artefact positioning system which enables automatic and optimised distribution of the artefacts, automatic prediction of their whereabouts to increase the artefact detection speed and robustness, and thereby greater overall calibration performance. This thesis also describes a novel technique that integrates the digital image correlation (DIC) technique into the present fringe projection SMS for the purpose of simultaneous shape and deformation field measurement. This combined technique offers three key advantages: (a) the ability to deal with geometrical discontinuities which are commonly present on mechanical surfaces and currently challenging to most deformation measurement methods, (b) the ability to measure 3D displacement fields with a basic single-camera single-projector SMS with no additional hardware components, and (c) the simple implementation on a multiple-sensor hardware platform to achieve complete coverage of large-scale and complex samples, with the resulting displacement fields automatically lying in a single global coordinate system. A displacement measurement accuracy of ≃ 1/12,000 of the measurement volume, which is comparable to that of an industry-standard DIC system, has been achieved. The applications of this novel technique to several structural tests of aircraft wing panels on-site at the research centre of Airbus UK in Filton are also presented. Mechanical components with shiny surface finish and complex geometry may introduce another challenge to present fringe projection techniques. In certain circumstances, multiple reflections of the projected fringes on an object surface may cause ambiguity in the phase estimation process and result in incorrect coordinate measurements. This thesis presents a new technique which adopts a Fourier domain ranging (FDR) method to correctly identifying multiple phase signals and enables unambiguous triangulation for a measured coordinate. Experiments of the new FDR technique on various types of surfaces have shown promising results as compared to the traditional phase unwrapping techniques.