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Undulating well trajectories are often drilled to improve length exposure to rock formations, target desirable hydrocarbon-saturated zones, and enhance resolution of borehole measurements. Despite these merits, undulating wells can introduce adverse conditions to the interpretation of borehole measurements which are seldom observed in vertical wells penetrating horizontal layers. Common examples are polarization horns observed across formation bed boundaries in borehole resistivity measurements acquired in highly-deviated wells. Consequently, conventional interpretation practices developed for vertical wells can yield inaccurate results in HA/HZ wells. A reliable approach to account for well trajectory and bed-boundary effects in the petrophysical interpretation of well logs is the application of forward and inverse modeling techniques because of their explicit use of measurement response functions. The main objective of this dissertation is to develop inversion-based petrophysical interpretation methods that quantitatively integrate logging-while-drilling (LWD) multi-sector nuclear (i.e., density, neutron porosity, photoelectric factor, natural gamma ray) and multi-array propagation resistivity measurements. Under the assumption of a multi-layer formation model, the inversion approach estimates formation properties specific to a given measurement domain by numerically reproducing the available measurements. Subsequently, compositional multi-mineral analysis of inverted layer-by-layer properties is implemented for volumetric estimation of rock and fluid constituents. The most important prerequisite for efficient petrophysical inversion is fast and accurate forward models that incorporate specific measurement response functions for numerical simulation of LWD measurements. In the nuclear measurement domain, first-order perturbation theory and flux sensitivity functions (FSFs) are reliable and accurate for rapid numerical simulation. Albeit efficient, these first-order approximations can be inaccurate when modeling neutron porosity logs, especially in the presence of borehole environmental effects (tool standoff or/and invasion) and across highly contrasting beds and complex formation geometries. Accordingly, a secondary thrust of this dissertation is the introduction of two new methods for improving the accuracy of rapid numerical simulation of LWD neutron porosity measurements. The two methods include: (1) a neutron-density petrophysical parameterization approach for describing formation macroscopic cross section, and (2) a one-group neutron diffusion flux-difference method for estimating perturbed spatial neutron porosity fluxes. Both methods are validated with full Monte Carlo (MC) calculations of spatial neutron detector FSFs and subsequent simulations of neutron porosity logs in the presence of LWD azimuthal standoff, invasion, and highly dipping beds. Analysis of field and synthetic verification examples with the combined resistivity-nuclear inversion method confirms that inversion-based estimation of hydrocarbon pore volume in HA/HZ wells is more accurate than conventional well-log analysis. Estimated hydrocarbon pore volume from conventional analysis can give rise to errors as high as 15% in undulating HA/HZ intervals. / text

Prior to an underground excavation a site investigation is carried out. This includes reviewing and analysing existing data, field data collected through outcrop mapping, drill core logging and geophysical investigations. These data sources are combined and used to characterise, quantify and classify the rock mass for the tunnel design process and excavation method selection. Despite the best approaches used in a site investigation, it cannot reveal the required level of detail. Such gaps in information might become significant during the actual construction stage. This can lead to; for example, over-break due to unfavourable geological conditions. Even more so, an underestimation of the rock mass properties can lead to unplanned stoppages and tunnel rehabilitation. On-the-other-hand, the excavation method itself, in this case, drill and blast, can also cause severe damage to the rock mass. This can result in over-break and reduction of the strength and quality of the remaining rock mass. Both of these attributes pose risks for the tunnel during excavation and after project delivery. Blast damage encompasses over-break and the Excavation Damage Zone (EDZ). In the latter irreversible changes occur within the remaining rock mass inside this zone, which are physically manifested as blast fractures. In this thesis, a number of methods to determine blast damage have been investigated in two ramp tunnels of the Stockholm bypass. Herein, a comparison between the most common methods for blast damage investigation employed nowadays is performed. This comparison can be used to select the most suitable methods for blast damage investigation in tunnelling, based on the environment and the available resources. In this thesis Ground Penetrating Radar, core logging (for fractures) and P-wave velocity measurements were applied to determine the extent of the blast damage. Furthermore, the study of the two tunnels in the Stockholm bypass shows a significant overestimation of the actual rock mass quality during the site investigation. In order to gain a more accurate picture of the rock mass quality, Measurement While Drilling (MWD) technology was applied. The technology was investigated for rock mass quality prediction, quantifying the extent of blast damage, as well as to investigate the potential to forecast the required rock support. MWD data was collected from both grout and blast holes. These data sets were used to determine rock quality indices e.g. Fracture Indication and Hardness Indicator calculated by the MWD parameters. The Fracture Index was then compared with the installed rock support at the measurement location. Lastly, the extent of the damage is investigated by evaluating if the MWD parameters could forecast the extent of the EDZ. The study clearly shows the capability of MWD data to predict the rock mass characteristics, e.g. fractures and other zones of weakness. This study demonstrated that there is a correlation between the Fracture Index (MWD) and the Q-value, a parameter widely used to determine the required rock support. The study also shows a correlation between the extent of the blast damage zone, MWD data, design and excavation parameters (for example tunnel cross section and charge concentration).

Présentement, au Canada, environ 75% des délinquants admis dans des établissements correctionnels fédéraux n’ont pas atteint leur cinquième secondaire ou l’équivalent (SCC, 2015). Il semble que suivre un programme d’éducation en détention permette d’éviter la récidive chez un grand nombre de détenus. Très peu d’études se penchent sur ce que ces personnes vivent pendant le suivi de tels programmes. C’est-à-dire, comment composent-ils avec un environnement tel que la prison pour étudier et à quel point doivent-ils travailler fort compte tenu de certaines difficultés dans le contexte carcéral. Ce mémoire propose donc de comprendre l’expérience de l’éducation d’ex-détenus fédéraux canadiens et de faire ressortir le regard qu’ils posent sur celle-ci. Dans le but d’atteindre nos objectifs, nous nous sommes intéressés au vécu de onze hommes ayant purgé une peine fédérale canadienne et ayant suivi un programme d’éducation durant leur incarcération. C’est par l’entremise d’entrevues semi-dirigées que nous avons pu mettre en lumière le fait que le suivi d’un programme d’éducation en détention ne se faisait pas sans difficulté d’ordre personnel, psychologique ou institutionnel. Nous verrons que cette expérience est vécue de manière différente selon les motivations à se prêter à l’exercice de l’éducation en détention, et qu’elle permet d’offrir à ces personnes des avantages sous plusieurs aspects. Ces bénéfices se font ressentir tant en détention qu’au retour dans la communauté. / Nowadays in Canada, approximately 75% of the offenders admitted in federal correctional facilities have not reached the 11th grade or it equivalent (SCC, 2015). Following an education program while in detention seems to contribute to the prevention of crime recidivism for a great number of inmates. Very few studies focus on the experience of inmates while following these programs. Thus, this study aims to understand the education experiences of Canadian federal ex-inmates and to expose their perspective on said education. To achieve our objectives, we explored the experiences of eleven men who served a Canadian federal sentence and who followed an education program during their incarceration. By conducting semi-directed interviews, we could shed light on the fact that following an education program as an inmate was not done without personal, psychological and institutional difficulties. We shall see that this educational experience is lived differently according to the motivation to participate. We shall also see that it offers its participants advantages through many forms. These advantages can be felt both during incarceration and upon return to the community. / Actualmente en Canadá, hay aproximadamente 75% de los delincuentes admitidos en las instituciones correccionales federales que tienen su diploma de quinto grado de secundaria o el equivalente. Ofrecer un programa de educación en detención permite evitar la reincidencia de un gran número de reclusos. Pocos estudios investigan sobre lo que viven los reclusos durante estos programas. Esta tesis ofrece una mejor comprensión de la experiencia de educación de los ex-convictos federales canadienses y permite conocer sus apreciaciones de los programas. Para alcanzar nuestros objetivos, nos hemos centrado sobre la realidad de once hombres que han cumplido una sentencia federal canadiense y que han seguido un programa de educación durante su encarcelamiento. Con entrevistas, en parte dirigidas, podemos destacar que los que hacen un programa de educación durante la detención pueden vivir dificultades personales, psicológicas e institucionales. Veremos que esta experiencia se vive de manera distinta según las motivaciones en relación con la educación en detención. También, esta tesis de maestría expone todos los beneficios que la experiencia de educación en prisión puede darle a los delincuentes. Estos beneficios son provechosos tanto durante la detención que al regresar a la comunidad.

Arbetets syfte är att undersöka hur deltagande processer med inslag av teknologin Internet of Things (IoT) formar den samtida konsten. Detta genom en fallstudie av projektet Över sundet. Som metod används deltagande observationer och semi-strukturerade intervjuer, då författaren är en av projektets processledare och curators. Över sundet är ett samarbete mellan Helsingborgs stad, Helsingör kommun och två konstnärsgrupper. Tillsammans med städernas invånare ska konstnärerna skapa en ljusinstallation som använder sig av IoT. Med hjälp av teori angående etik, deltagande konst och pedagogik från Claire Bishop visar arbetets analys att projektets process är användbar och positiv men kan likväl gynna konstprojekt utan fokus på teknik. Arbetets analys använder sig också av Lev Manovichs begrepp ”culture interface” och drar slutsatsen att ljusinstallationen är en hybrid av kulturformer. En annan slutsats är att installationen formas av de datakällor som städernas invånare bidrar med. Utan invånarnas data och medskapande roll, berättar konstinstallationen inget narrativ.

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[pt] Alguns dos problemas mais comuns relatados durante a perfuração de poços petrolíferos, como a instabilidade, a perda de circulação e o colapso das paredes, podem ser evitados com o acesso em tempo real, dentre outros, à resistência à com-pressão não confinada das rochas. Os métodos mais usuais de estimativa da resis-tência não confinada apresentam três principais restrições quanto à aplicação em tempo real: i) a perfilagem em tempo real pode não ocorrer ao longo de toda a tra-jetória do poço e é mais costumeira em profundidades próximas ao reservatório; ii) a obtenção de amostras provenientes do poço para ensaios de laboratório é prática custosa e pouco usual e; iii) as informações relativas à geometria da broca são res-tritas aos fabricantes. Nesse contexto, esta dissertação tem como foco a adaptação de um método de estimativa da resistência não confinada para tornar possível a aplicação em tempo real, partindo da hipótese de que a perfuração é fundamental-mente controlada pela interação entre a broca e a formação rochosa e que a resis-tência à compressão confinada está relacionada a uma parcela da energia mecânica específica. A metodologia desenvolvida foi aplicada em um poço, testada em outros nove poços e será implementada no programa de estabilidade SEST TR 2.0. Sa-bendo que a resistência não confinada é função da coesão e do ângulo de atrito, a coesão da formação rochosa também foi calculada. Este estudo conclui que é pos-sível estimar ambas as propriedades mecânicas em tempo real dispondo apenas dos parâmetros operacionais de perfuração. / [en] Some of the most common problems reported during well drilling, such as instability, loss of circulation and wellbore collapse can be avoided with real-time access, among others, to the unconfined compressive strength of rocks. The most usual methods for estimating unconfined compressive strength have three main re-strictions regarding their real time application: i) real-time logging may not occur along the entire trajectory of the well and is more common at depths close to the reservoir; ii) obtaining samples from the well for laboratory tests is costly and un-usual practice and; iii) information regarding drill bit geometry is restricted to man-ufacturers. In this context, this research focuses on the adaptation of an unconfined compressive strength estimation method to make real-time application possible, based on the hypothesis that drilling is fundamentally controlled by the interaction between the drill bit and rock formation and that the confined compressive strength is related to a portion of the mechanical specific energy. The developed methodol-ogy was applied in one well, tested in nine other wells and will be implemented in the SEST TR 2.0 stability program. Knowing that unconfined compressive strength is a function of cohesion and friction angle, the cohesion of the rock for-mation was also calculated. This study concludes that it is possible to estimate both mechanical properties in real time using only drilling data.

<p>The thesis consists of two main parts of nonlinear optical instrumentation development. </p> <p>Fluorescence-detected mid-infrared photothermal (F-PTIR) microscopy is demonstrated for sub-diffraction limited mid-infrared microspectroscopy of model systems and applied to probe phase transformations in amorphous solid dispersions. To overcome the diffraction limit in infrared imaging, a highly localized temperature-dependent photothermal effect is an attractive alternative indicator to infrared absorption. Photothermal atomic force microscopy infrared spectroscopy (AFM-IR) achieves nanometer resolution by monitoring heat caused expansion but only restricted on the surface. For 3D imaging, optically detected photothermal infrared (O-PTIR) combines an infrared laser with a visible probe source with to transduce photothermal refractive index changes (e.g., from changes in beam divergence or scattering). The sensitivity of O-PTIR is ultimately limited by the relatively weak dependence of refractive index with temperature, exhibiting changes of ~0.01% per oC. Fluorescence-detected photothermal mid-infrared (F-PTIR) spectroscopy (Fig. 1) is demonstrated herein to support 3D imaging with improved photothermal sensitivity. In F-FTIR, the sensitivity of fluorescence quantum efficiency to temperature change (~1-2% per oC) is used to transduce transient heat flux from localized IR absorption. The infrared spatial resolution of F-FTIR is defined by fluorescence microscopy and the thermal diffusivity of the sample instead of infrared wavelength. Initial F-PTIR proof of concept studies are described for microparticle assemblies of silica gel and polyethylene glycol, followed by applications of F-PTIR for analysis of localized composition within phase-separated domains induced by water vapor exposure of an amorphous solid dispersion (ritonavir in copovidone).</p> <p>Fluorescence recovery while photobleaching (FRWP) is demonstrated as a method for quantitative measurements of rapid diffusion mapping over the microsecond to millisecond time scale. Diffusion measurements are critical for molecular mobility assessment in cell biology, materials science and pharmacology. Fluorescence recovery after photobleaching (FRAP) is a well-known noninvasive optical microscopy method for measuring diffusion coefficients of macromolecules, such as proteins in cells and viscous solutions. However, conventional point-bleach FRAP is challenging to implement with multi-photon excitation and typically only supports diffusion analysis over millisecond time scales due to camera frame rate limitations. FRWP with patterned illumination addresses these limitations of FRAP by probing the fluorescence intensity changes while bleaching a comb pattern within a field of view (FoV). Fast-scanning of an ultrafast excitation beam distributes heat rapidly over multiple adjacent pixels, minimizing local heating effects that could complicate analogous diffusion measurements by point-bleach FRAP with multiphoton excitation. In FRWP, time-scales of the probed diffusion events are defined by a single line-pass time of a resonant scanning-mirror with a period of 125  s. In FRWP, the bleach pattern spans locations across the whole FoV, enabling diffusion mapping through image segmentation. More than a hundred bleaching and recovery events can be recorded during a single 10s measurement. Normal and anomalous diffusion of rhodamine-labeled bovine serum albumin (BSA) molecules was studied as a model system, with applications targeting rapid assessment of therapeutic macromolecule mobility within heterogeneous biological environments.</p>

Texting while driving is a growing problem that has serious, and sometimes fatal, consequences. Despite laws enacted to curb this behavior, the problem continues to grow. Discovering factors that can reduce such risky behavior can significantly contribute to research, as well as save lives and reduce property damage. This study developed a model to explore the motivations that cause a driver to send messages. The model evaluates the effects that boredom, social relationships, social anxiety, and social gratification (BRAG) have upon a driver’s frequency of typing text messages. In addition, the perceived severity of the consequences and the presence of a passenger were also be evaluated for any moderating effects on a driver’s texting. Furthermore, a set of hypotheses based on the BRAG model were presented. To investigate these hypotheses, a survey instrument was developed and data was collected from 297 respondents at a mid-sized regional university in the Pacific North west of the United States. Prior to the distribution of the survey, an expert panel and a pilot study were used to ensure the reliability of the instrument. Partial least squares structured equation modeling (PLS-SEM) was used to evaluate the predictive validity of the BRAG model. This evaluation included an assessment of the reflective measures, as well as a detailed analysis of the structural model. Additionally, knowledge visualization techniques were used to emphasize the significance of the findings. The results of this analysis showed that the social gratification one receives from maintaining their social relationships is a significant predictor of texting while driving. Additionally, the results showed that drivers continued to text, regardless of the consequences. However, boredom and social anxiety were not significant predictors of texting while driving. This study makes important contributions to the information systems body of knowledge and has implications for state and local lawmakers, in addition to public health officials. Prior research has shown that bored or anxious individuals use texting to relieve those feelings of discomfort. However, this study did not extend those findings to drivers. As this study found that laws banning texting while driving do not deter this behavior, public health officials and lawmakers should investigate other means of deterring texting while driving, given the significant impact it has on the increase of fatal car accidents in recent years.