Dissertations / Theses: 'Loss of ground'

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Hagentoft, Carl-Eric. "Heat loss to the ground from a building : slab on the ground and cellar /." Lund, 1988. http://www.byfy.lth.se/.

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Bird, Juliet Frances. "Earthquake loss estimations : modelling losses due to ground failure." Thesis, Imperial College London, 2005. http://hdl.handle.net/10044/1/51561.

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Over the last three decades, significant advances have been made in the development of models to estimate losses caused by ground shaking in future earthquakes. This research focuses on losses caused by liquefaction-induced ground failure. A comprehensive study of the causes of damage and loss in recent earthquakes is used to rank the relative contribution of ground-failure to earthquake losses and to illustrate scenarios where ground-failures can dominate the losses. Subsequently, it is demonstrated that current practice for incorporating liquefaction into earthquake loss estimations is problematic in its application. Simplified approaches are based upon many assumptions and hence carry large and often undefined uncertainties, and more detailed approaches require large volumes of data, which can be prohibitive in terms of time and resources. Even if detailed analysis is possible, it is shown that many aspects of liquefaction, particularly how it impacts the built environment in terms of regional damage and losses are not well covered by our present modelling capabilities. Having identified shortcomings in current practice, which are supported by case history data from the 1999 Kocaeli, Turkey earthquake, an improved framework is proposed, which seeks to provide a pragmatic solution to the issues of spatial uncertainty and variability in ground conditions and the exposed building stock, while still producing a realistic and meaningful estimation of the expected damage distribution as a result of earthquake hazards. Within this improved framework, existing building damage scales are shown to be insufficient with respect to describing some modes of liquefaction-related damage and proposed improvements to these scales are presented. Building vulnerability to liquefaction-induced ground deformations is analytically defined, and importantly, the relative uncertainties associated with each level of input data and each stage of the analysis are carefully considered and fully documented.

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Foulser-Piggott, Roxane. "The impact of ground motion uncertainty on earthquake loss estimation." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9751.

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This thesis examines the ground motion prediction component of earthquake loss estimation (ELE) frameworks and is based on the assertion that reducing the uncertainty in ground motion prediction will result in improved accuracy of loss estimates. The objective is to obtain improved ground motion predictions by identifying and quantifying the sources of uncertainty in the predictions, with particular focus on the portion of the uncertainty that can be reduced. The work presented in this thesis starts with an examination of ground motion measures commonly used in ELE and their relative utility. The ground motion measure Arias Intensity is identified as well-suited to application in a number of problems in earthquake engineering and this along with the lack of a robust equation for its prediction, leads to the development of a new predictive equation for Arias Intensity. Next, the prediction of Arias Intensity at spatially separated locations is studied in order to develop a model for the spatial correlation of Arias Intensity so that loss estimates for spatially distributed portfolios may be obtained. Thirdly, the sources of uncertainties in the predicted values of Arias Intensity are investigated and the uncertainties are characterised and quantified in order to establish whether or not they may be reduced. The impacts of these uncertainties on the new predictive equation for Arias Intensity are also examined. The final part of the thesis focusses on the use of GIS to display the information described in the previous sections on ground motion prediction. Particular attention is given to enhancing the display of uncertainties in ground motion predictions. This thesis demonstrates that the impacts of uncertainty on ground motion predictions and therefore earthquake loss estimation are significant, making this research of particular importance in this field.

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Lavender, Brandon Dewayne. "Assessing Occupational Noise Exposure of Service members in Aerospace Ground Equipment (AGE) Maintenance." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6294.

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Noise exposure is one of the most common hazards in the work force. There are multiple occupations that experience large amounts of noise exposure to its employees on a regular basis. Flight ground crews and flight maintenance personnel are among the nosiest jobs that exist. Despite the mandatory hearing protection requirements for a job of this caliber, there still remains a chance of an over exposure to noise. Most of the exposure comes from the different types of loud repair equipment and tools, but the greatest exposure comes from a jet engine that can reach 140 decibels. Flight maintenance personnel often work in an environment where the hours are long and there is continuous noise at high decibels. Flight maintenance personnel are typically in multiple places throughout a workday because of the maintenance responsibilities of different equipment, trucks, and planes. This study will examine the noise exposure levels of the service members in the Aerospace Ground Equipment (AGE) department on a United States Air Force base. The study will help determine if the service members in the AGE department are being over exposed to noise from their daily routines as flight repair personnel. There has been previous noise sampling done on the AGE department and there will be a comparison of data due to different equipment, change in personnel, and standard operating procedures for the department. The bioengineering/ environmental department is typically responsible for sampling of the AGE department. They have had a difficult time with suggesting engineering controls due to the constant mobility of the maintenance crews. As a result, they have to rely heavily on administrative controls and effective Personal Protective Equipment (PPE). This study will include sampling for a standard workday including day and night shift for the AGE department. The sampling will be done by using personal noise dosimeters and a sound level meter will be used to conduct area sampling for equipment in AGE shop. The AGE department on the Air Force base agreed to allow personnel from their shop to participate in this study. In this study, we will adhere to the Air force safety regulations and sampling techniques

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Liu, K. W., and 廖家榮. "Hypothetical studies on ground settlement triggered by groundwater loss during tunneling activities." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B43894616.

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Liu, K. W. "Hypothetical studies on ground settlement triggered by groundwater loss during tunneling activities." Click to view the E-thesis via HKUTO, 2001. http://sunzi.lib.hku.hk/hkuto/record/B43894616.

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Blom, Åsa, and Mikael Bergström. "Above Ground Durability of Swedish Softwood." Doctoral thesis, Växjö universitet, Institutionen för teknik och design, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-395.

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This thesis describes aspects of durability of Swedish softwood in above ground applications. The thesis consists of a summary of nine papers, which all aim to explain the existing variation in above ground microbial durability and moisture sensitivity of Norway spruce (Picea abies) and Scots pine (Pinus sylvestris). The methods used were two field tests, one accelerated durability test, and three water permeability tests. The main conclusions made in the study were that Norway spruce sapwood is more susceptible to discolouring fungi than heartwood. With respect to Scots pine, the only important factor for its natural durability above ground was whether the samples consisted of heartwood or of sapwood. There was also no systematic variation between pine heartwood from different stand origins in above ground conditions. Origin had no influence on durability in practice for neither spruce nor pine. Furthermore, in contradiction with traditional thinking, annual ring width and density had no influence on durability in any of the tests. The material came from two different samplings. The ‘old’ material was sampled in the beginning of the 1980s and consisted of Scots pine and Norway spruce from three different origins: the north, the central area, and the south of Sweden. The material was subjected to different handling conditions and surface and end-grain treatments. The ‘old’ material was used in a large above ground field test, carried out between 1985 and 1994. Unfortunately, the spruce sapwood and heartwood was not separated in this field test. In the field trial with the ‘old’ material, the most important factor for the durability of Norway spruce was the samples’ surface- and end-grain treatment. It was also observed that untreated spruce showed better durability than samples that were painted but without proper end-grain treatment. Samples originating from one of the stands were more sensitive towards air-drying than samples from the other two, which was reflected in a higher average moisture content and mass loss for the untreated samples. With respect to Scots pine, the most important factor was whether the sample consisted of heartwood or of sapwood. The heartwood samples were durable irrespective of their previous treatment. The Scots pine sapwood samples, on the other hand, had a very fluctuating moisture content if they were not surface- and end-painted. This was also reflected in higher mass losses in these samples. Even when properly surface- and end grain treated, the sapwood samples did not perform as well as the heartwood samples. The ‘new’ material consisted of Scots pine taken from six different stands, and Norway spruce from five different stands, all from areas in southern Sweden. The sampling was performed in order to achieve a large variation in wood properties. Thus, logs from areas with different climate and growth conditions were collected. This material was used for laboratory tests, and also for the second field test, which was evaluated after a test period of two years. In the second field test untreated Scots pine and Norway spruce samples from the ‘new’ material were investigated. Effects of origin and different tree diameters were examined. Furthermore, Scots pine was separated to heartwood and sapwood, and Norway spruce to mature and juvenile wood. The Norway spruce samples were sawn with vertical or horizontal annual rings. For the Norway spruce in the second field test, vertical annual rings were shown to be very beneficial for avoiding crack formation, while samples with horizontal annual rings displayed a large number of cracks. Despite this, the larger number of cracks did not result in a higher moisture content or more fungal discoloration. Juvenile wood had a slightly higher average discolouring fungal growth grading than the other spruce samples. For Scots pine, the only factor of importance was whether the samples consisted of heartwood or of sapwood. Annual ring width, density and origin had no significant effect on either fungal growth or moisture uptake. This observation held for both Norway spruce samples and Scots pine samples. An accelerated test was run in order to investigate Norway spruce sapwood and heartwood with respect to their differences in durability towards discolouring fungi and moisture uptake. The Mycologg method was used to accelerate fungal growth during a number of forced moisture cycles. The results showed that sapwood was much more sensitive to discolouring fungi than heartwood. Sapwood also recorded a higher average moisture content than heartwood. The differences that were observed between the types of samples were not due to annual ring width, density or origin. It was observed that Norway spruce sapwood samples and heartwood samples showed differences in liquid water permeability. This observation was made especially evident in a droplet absorption test. Water droplets were absorbed much faster on the sapwood samples in comparison with the heartwood samples. This higher affinity to water suggested that a sapwood surface would reach a higher moisture content than a heartwood surface. This observation provides a major explanation of why the sapwood samples showed poorer durability towards discolouring fungi in the Mycologg trials.

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Vanderberg, Michael R. "Harvested log damage and value loss associated with two ground-based harvesting systems in central Appalachia." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2683.

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Thesis (M.S.)--West Virginia University, 2002.
Title from document title page. Document formatted into pages; contains ix, 98 p. : ill. (some col.), map. Includes abstract. Includes bibliographical references (p. 68-72).

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Kim, Bumsoo. "Motion control of an autonomous vehicle with loss of wheel-ground contact avoidance using dynamic model based predictive control." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ58286.pdf.

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Saadou, Yaye Abdoulaye. "Quality of Experience for the Operation of a Small Scale Ground Vehicle over Unreliable Wireless Links." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1439489876.

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Kotze, Beukes. "The design of a hard rock permittivity and loss sensor to be integrated with borehole radar." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/1540.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2004.
The use of ground penetrating radar, and especially borehole radar in underground mines, is becoming increasingly attractive. This is due to the improvements in the user friendliness of this system. Borehole radar is able to sense accurately geological faults and structures hidden inside the rock body and this information is of value to geologists. In the quest to increase the accuracy of the radar, it was realized that the borehole trajectory and surrounding rock properties are needed. This thesis discusses a rock permittivity and loss sensor which is designed to be deployed in cylindrical hard rock boreholes with diameter of about 50 mm. The sensor consists of electrodes to produce capacitance that is dependant on the rock properties, and electronics to measure this dependency. The biggest problem foreseen is that the probe will not be in direct contact with the rock body. Cylindrical Electrodes were designed using numerical simulations and physical models. Sensitivity and noise attributes received attention. Electronic components were used to sense the small capacitance produced by the electrodes. The resulting signals are slow changing "DC• voltages from which an indication of the needed properties could be extracted. The system was integrated and tested in both laboratory and mine conditions. Test-result-b,ased improvements were introduced and led to satisfactory working of the probe. However, the deployment method will need attention before this probe can be used in field conditions.

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Abidin, Z. Z. "Design, modelling and implementation of antennas using electromagnetic bandgap material and defected ground planes. Surface Meshing Analysis and Genetic Algorithm Optimisation on EBG and Defected Ground Structures for Reducing the Mutual Coupling between Radiating Elements of Antenna Array and MIMO Systems." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5385.

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The main objective of this research is to design, model and implement several antenna geometries using electromagnetic band gap (EBG) material and a defected ground plane. Several antenna applications are addressed with the aim of improving performance, particularly the mutual coupling between the elements. The EBG structures have the unique capability to prevent or assist the propagation of electromagnetic waves in a specific band of frequencies, and have been incorporated here in antenna structures to improve patterns and reduce mutual coupling in multielement arrays. A neutralization technique and defected ground plane structures have also been investigated as alternative approaches, and may be more practical in real applications. A new Uni-planar Compact EBG (UC-EBG) formed from a compact unit cell was presented, giving a stop band in the 2.4 GHz WLAN range. Dual band forms of the neutralization and defected ground plane techniques have also been developed and measured. The recorded results for all antenna configurations show good improvement in terms of the mutual coupling effect. The MIMO antenna performance with EBG, neutralization and defected ground of several wireless communication applications were analysed and evaluated. The correlation coefficient, total active reflection coefficient (TARC), channel capacity and capacity loss of the array antenna were computed and the results compared to measurements with good agreement. In addition, a computational method combining Genetic Algorithm (GA) with surface meshing code for the analysis of a 2×2 antenna arrays on EBG was developed. Here the impedance matrix resulting from the meshing analysis is manipulated by the GA process in order to find the optimal antenna and EBG operated at 2.4 GHz with the goal of targeting a specific fitness function. Furthermore, an investigation of GA on 2×2 printed slot on DGS was also done.
Ministry of Higher Education Malaysia and Universiti Tun Hussein Onn Malaysia (UTHM)

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Abidin, Zuhairiah Zainal. "Design, modelling and implementation of antennas using electromagnetic bandgap material and defected ground planes : surface meshing analysis and genetic algorithm optimisation on EBG and defected ground structures for reducing the mutual coupling between radiating elements of antenna array MIMO systems." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5385.

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The main objective of this research is to design, model and implement several antenna geometries using electromagnetic band gap (EBG) material and a defected ground plane. Several antenna applications are addressed with the aim of improving performance, particularly the mutual coupling between the elements. The EBG structures have the unique capability to prevent or assist the propagation of electromagnetic waves in a specific band of frequencies, and have been incorporated here in antenna structures to improve patterns and reduce mutual coupling in multielement arrays. A neutralization technique and defected ground plane structures have also been investigated as alternative approaches, and may be more practical in real applications. A new Uni-planar Compact EBG (UC-EBG) formed from a compact unit cell was presented, giving a stop band in the 2.4 GHz WLAN range. Dual band forms of the neutralization and defected ground plane techniques have also been developed and measured. The recorded results for all antenna configurations show good improvement in terms of the mutual coupling effect. The MIMO antenna performance with EBG, neutralization and defected ground of several wireless communication applications were analysed and evaluated. The correlation coefficient, total active reflection coefficient (TARC), channel capacity and capacity loss of the array antenna were computed and the results compared to measurements with good agreement. In addition, a computational method combining Genetic Algorithm (GA) with surface meshing code for the analysis of a 2×2 antenna arrays on EBG was developed. Here the impedance matrix resulting from the meshing analysis is manipulated by the GA process in order to find the optimal antenna and EBG operated at 2.4 GHz with the goal of targeting a specific fitness function. Furthermore, an investigation of GA on 2×2 printed slot on DGS was also done.

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Blomdahl, Klara. "Changes in the Cold Surface Layer on a Polythermal Glacier during Substantial Ice Mass Loss." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-251362.

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Climate change in the Arctic and sub-Arctic has induced substantial changes in the inland cryosphere. The warming climate is causing a reduction in glacier size and extent and the average net mass balance for Arctic glaciers have been negative over the past 40 years. Relatively few studies have been conducted concerning the development of the thermal distribution in glaciers during extensive volume changes. There is a possible diversity in how the thermal structure might change with a changing climate. Storglaciären is losing the cold surface layer in the ablation area and progressively becomes more temperate, while Kårsaglaciären is losing the zone of temperate ice in the ablation area and consequently becoming colder. The overall objective of this study has been to improve the understanding of the thermal response of polythermal glaciers to climate change. The results from Pårteglaciären, northern Sweden, indicate a decrease in volume by 18% in the last 15 years with an expected decrease of 35% of its present size during the coming century. As a consequence of the prevailing climate and volume decrease Pårteglaciären is experiencing a thinning of the cold surface layer at an average rate of 1.13 m a-1. The volumetric and cold surface layer changes are in the same magnitude, which may indicate that the CTS adapts relatively rapidly to the present changes. Assuming a climatic effect similar to what has been observed on Storglaciären, it can be concluded that the thinning has influenced the thermal regime. But in contrast to Kårsaglaciären, the thermal distribution on Pårteglaciären has become more temperate as a result of the substantial mass loss.
Klimatförändringar i Arktis och subarktis har orsakat stora förändringar i kryosfären. Ett varmare klimat orsakar en minskning av glaciärers storlek och omfattning och nettomassbalansen för Arktiska glaciärer har varit negativ under de senaste 40 åren. Relativt få studier har genomförts angående utvecklingen av den termiska fördelningen i glaciärer under omfattande volymförändringar. Det finns en möjlig diversitet i hur den termiska strukturen kan ändras med ett förändrat klimat. Storglaciären förlorar det kalla ytskiktet i ablationsområdet och blir successivt mer tempererad, medan Kårsaglaciären förlorar zonen med tempererad is i ablationsområdet och blir därmed kallare. Syftet med den här studien har varit att öka förståelsen för den termiska reaktionen hos polytermala glaciärer till ett förändrat klimat. Resultaten från Pårteglaciären i norra Sverige visar en volymreducering med 18% under de senaste 15 åren med en förväntad minskning på 35% av den nuvarande storleken under det kommande århundradet. Som en följd av det rådande klimatet och den reducerade volymen genomgår det kalla ytskiktet på Pårteglaciären en förtunning med en genomsnittlig hastighet av 1.13 m a-1. Volymförändringarna och förändringarna i kalla ytskiktet är i samma storleksordning, vilket tyder på att CTS anpassas relativt snabbt till de nuvarande förändringarna. Förutsatt en klimatisk effekt liknande den som observerats på Storglaciären, kan slutsatsen dras att förtunningen har påverkat den termiska regimen. Men i motsats till Kårsaglaciären har den termiska fördelningen på Pårteglaciären blivit mer tempererad som ett resultat av den omfattande massförlusten.

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Pablo, Herbert, Noel Richardson, Anthony Moffat, Michael Corcoran, Tomer Shenar, Omar Benvenuto, Jim Fuller, et al. "A Coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, δ Orionis Aa. III. Analysis of Optical Photometric (MOST) and Spectroscopic (Ground Based) Variations." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/6234.

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We report on both high-precision photometry from the Microvariability and Oscillations of Stars (MOST) space telescope and ground-based spectroscopy of the triple system δ Ori A, consisting of a binary O9.5II+early-B(Aa1 and Aa2) with P=5.7 days, and a more distant tertiary(O9 IV P 400 years). This data was collected in concert with X-ray spectroscopy from the Chandra X-ray Observatory. Thanks to continuous coverage for three weeks, the MOST light curve reveals clear eclipses between Aa1 and Aa2 for the first time in non-phased data. From the spectroscopy, we have a well-constrained radial velocity (RV)curve of Aa1. While we are unable to recover RV variations of the secondary star, we are able to constrain several fundamental parameters of this system and determine an approximate mass of the primary using apsidal motion. We also detected second order modulations at 12 separate frequencies with spacings indicative of tidally influenced oscillations. These spacings have never been seen in a massive binary, making this system one of only a handful of such binaries that show evidence for tidally induced pulsations.

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Chambers, Joanne. "Terrestrial habitat requirements of a suite of anuran species inhabiting a semi-arid region of South East Queensland." Queensland University of Technology, 2008. http://eprints.qut.edu.au/16610/.

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Hypothesised causes of the observed world-wide decline of amphibian populations are varied and in some cases contentious. Insufficient information relating to the autecology of many amphibian species can cause erroneous speculations regarding critical habitat requirements and hence management programs designed to enhance population viability are often unsuccessful. Most amphibians display a bi-phasic life history that involves occupation of an aquatic breeding habitat and terrestrial habitats that are used for foraging, and shelter from predation and environmental stress. However, the focus of most amphibian research is centred on the breeding habitat, with limited research being conducted into the terrestrial habitat requirements of most amphibian species. Barakula State Forest is a large continuous area of open woodland situated in the semi-arid region of Queensland. The forest supports 21 species of endemic anurans, many of which use ephemeral waterbodies for breeding. This area is, therefore, an ideal location to test the relative importance of terrestrial habitat on the distribution of a suite of frogs that display different morphological and physiological characteristics. On the landscape scale, the attributes of the terrestrial environment at three survey areas within Barakula were similar. However, at the patch scale, ground truthing showed there were considerable variations in vegetation and ground cover attributes within and between each survey site. Measured properties of the soil also tended to vary within and between sites. Soil texture ranged from sandy to heavy clay, soil pH ranged from 3.9 to 6.4 and soil moisture varied considerably. Agar models, used for testing evaporative moisture loss at different microhabitats, retained significantly higher levels of moisture when positioned in the buried microhabitat during summer, but in winter, models that were placed under leaf litter retained higher levels of moisture. Variations in levels of moisture loss at the five different microhabitats were evident within and between the survey sites. Despite a prolonged drought, 1844 native frogs representing 17 species were pitfall trapped. Members from the family Myobatrachidae comprised 94% of these captures, and burrowing species accounted for 75% of total captures. Species were not randomly distributed within or between the survey sites. Vegetation attributes and soil properties played a significant role in influencing the catch rates and traplines that supported similar vegetation and soil attributes also tended to catch similar species. Capture rates of six of the seven burrowing species were significantly influenced by soil properties. When given a choice of four different microhabitats created in enclosures, individuals from five species showed varying responses to habitat choice during night time activity. During daylight all species tended to avoid bare areas and burrowing species tended to burrow under some form of cover. Pseudophryne bibronii metamorphs showed a significant avoidance to soils with high pH. The number of Limnodynastes ornatus metamorphs was significantly and positively correlated with moisture levels surrounding a breeding area. Limnodynastes ornatus metamorphs tended to avoid areas that did not support some form of cover. Embryos from the terrestrial egg laying P. bibronii translocated to sites with varying levels of soil pH, suffered increased mortality where the soil pH was >4.8. In the laboratory, embryonic survival was not significantly different between the four pH treatments. There was a significant influence of fungal infection on survival rates and ranked fungal infection was significantly different between the four pH treatments. The terrestrial environment at the three survey sites has provided sufficient protection from environmental elements to allow a large diversity of anurans to persist for long periods without access to permanent water. Management must consider the importance of the non-breeding habitat when defining buffer zones, restoration programs and conservation strategies to ensure that the complete set of ecological requirements for frog species are provided.

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Yubero, de Mateo Maria Teresa. "Ejecución de túneles en terreno deltaico mediante tuneladora EPB : el caso de la línea 9." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/672353.

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The urban tunneling may generate significant problems. One of the main concerns is the unavoidable ground movements generated; before, during and after the tunneling operations. In this context, the objective of this Thesis is the study of the ground movements, both on the surface and at depth, caused by tunnel excavations using Tunnel Boring Machines (TBMs). Within the scope of TBMs, we can distinguish between tunneling machines for hard ground and shield machines for excavation in low-strength soils. The shield machines and, specifically, the Earth Pressure Balance shields, are based on the principle of equilibrium between the tunnel face and the excavated soil in the front chamber. An example of EPB tunneling is the case of the Line 9 (under construction) of the Barcelona Metro. Once the Line will be finished, it would be one of the longest lines in Europe with a total length of 47.8 Km constructed for the most part in an urban setting. This Line 9 tunnel crosses different types of soils. This Thesis specifically refers to the excavation of Line 9 between Terminal 1 at the Prat airport and the industrial area called “Parc Logistic”. This 14 km- long section of the route is called Section 1 in the construction project of the Line 9 and corresponds to the stretch between the stations of Terminal T1 and Parc Logístic. The studied area is located in the Llobregat river delta and it is made up of quaternary deltaic deposits completely excavated in soft deltaic deposits of mixed soft clays that constitute a quite uniform layer. Tunneling is performed by two EPB machines of 9.4 m diameter. An important monitoring system was installed not only in Section 1 but throughout the whole line as well. The system was devoted to the measurement of the magnitude and distribution of ground movements before, during and after the passing of the EPB. The information on the horizontal and vertical movements, at the surface and at depth, is analyzed and compared with empirical and semi-empirical methods available in the literature. Both the cross-section and the longitudinal distributions are considered. For the case of surface settlement troughs, the comparisons are made at two times related to the excavation process. The first one, called short-term, considers the movements until the tunnel lining has been installed. The second one, called long-term, considers the movements until the consolidation of the ground has finished. The settlement distributions have been represented by an inverted Gaussian distribution curve that has been adjusted using different methods. In addition, the observed settlement troughs have been approximated by alternative empirical expressions and by equations based on analytical solutions. For the case of the vertical and horizontal movement distributions at depth, the same short-term and the long-term points mentioned above have been considered. Movements at depth have been examined in ten cross-sections (also called transverse sections) along the line, called Control Sections. In the same way, the data recorded by vibrating wire piezometers and Casagrande open piezometers have been analyzed and the variation of the piezometric has been plotted. The analysis of all the data collected has allowed the comparison between the results of Line 9 Section 1 with forty-five cases of tunnels excavated not only in similar soft soils, but also in sandy soils and in stiff clays. Finally, two-dimensional simulation of the excavation has been carried out using the Plaxis finite element program, using a constitutive model that includes small deformation behavior, the Small Strain Hardening Soil. The analysis has been able to reproduce satisfactorily the observed movements both in the short and long term, establishing a useful record for other EPB tunneling projects in similar soft soils.
El progresivo incremento en la construcción de túneles urbanos puede crear problemas significativos. Una de las principales preocupaciones es la inevitable generación de movimientos: antes, durante y después del proceso de excavación. En este sentido, el objetivo de esta tesis es el estudio de los movimientos producidos en el terreno tanto en superficie como en profundidad debido al proceso de excavación de un túnel con máquinas tuneladoras. Dentro del ámbito de máquinas tuneladoras, se distingue entre: los topos para terrenos duros y los escudos para la excavación en terrenos de baja resistencia. Las máquinas tipo escudos y en particular, los escudos de presión de tierras “Earth Pressure Balance” (EPB), se basan en el principio de equilibrio entre el frente de excavación y el propio terreno excavado situado en la cámara de tierras. Este terreno ya excavado evita posibles inestabilidades del frente, en especial, cuando se excava en terrenos poco cohesivos bajo el agua. Un claro ejemplo, de ejecución de túneles con máquina tuneladora tipo EPB, es el caso de la línea 9 del metro de Barcelona. La futura línea de metro será una de la más larga de Europa con aproximadamente 47.8 Km de longitud, y discurre por zona urbana casi en su totalidad. Dado, la gran longitud de la nueva Línea 9 de metro y la variabilidad de los materiales que atraviesa, esta tesis se centrará únicamente en una parte del trazado de la línea, concretamente la sección entre la Terminal 1 del Aeropuerto del Prat y el polígono industrial de Parc Logístic considerado en el proyecto como Tramo 1 y que corresponde al tramo entre las estaciones de Terminal T1 y de Parc Logístic respectivamente, con una longitud entre ambas de casi 14 kilómetros. Esta zona de estudio se encuentra enmarcada en el delta del río Llobregat y está formada por materiales del cuaternario deltaicos con mezcla de arcillas blandas que forman un paquete muy uniforme excavado. El túnel ha sido excavado mediante dos tuneladoras tipo EPB de 9.40 m de diámetro. Tanto en el tramo considerado (Tramo 1) como en todo el trazado de la Línea 9, se ha instalado un intenso sistema de instrumentación, para medir la magnitud y distribución de los movimientos del terreno, antes, durante y después del paso de la máquina EPB. Los datos de movimientos verticales y horizontales del terreno en superficie y en profundidad son analizados y comparados con métodos empíricos, semi-empíricos y analíticos existentes en la literatura. Se consideran tanto las cubiertas transversales de asientos como la distribución de movimientos verticales en la dirección longitudinal al túnel. En el caso de las cubetas de asientos en superficie se consideran dos momentos relacionados con el proceso de excavación. El primero, llamado a corto plazo, considera los movimientos hasta una primera estabilización que se produce una vez colocado el revestimiento del túnel y el segundo, llamado a largo plazo, considera los desplazamientos cuando el proceso de consolidación en el terreno del terreno ha finalizado. Estas cubetas son representadas mediante una curva de distribución Gaussiana invertida, ajustada mediante el empleo de diferentes métodos. Adicionalmente, también se han utilizado expresiones alternativas, tanto empíricas como basadas en soluciones analíticas, para describir las cubetas de asientos en superficie. En el caso de los movimientos en profundidad también se han estimado la distribución de movimientos verticales y movimientos horizontales en los dos momentos anteriormente considerados. Dichos movimientos en profundidad han ido considerados en diez secciones transversales al trazado, llamadas Secciones de Control. Además, se han analizado los datos recogidos por piezómetros de cuerda vibrante y piezómetros abiertos y se ha dibujado la variación del nivel piezométrico. Además, el análisis de todos estos datos ha permitido la comparación entre los resultados del Tramo 1 con otros cuarenta y cinco casos de túneles donde excavados no solo en terrenos blandos similares sino también en terrenos arenosos y en arcillas rígidas. Por último, se realiza una simulación en dos dimensiones mediante el programa de elementos finitos Plaxis, con el modelo constitutivo para pequeñas deformaciones Small Strain Hardening Soil, que permite reproducir satisfactoriamente los movimientos observados tanto a corto como a largo plazo, estableciendo así una herramienta potencialmente útil para la construcción de túneles futuros en terrenos blandos similares.
Enginyeria del terreny

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18

Chevalier, Laure. "Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAU008/document.

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L'activité des volcans andésitiques, tels que le Mont St Helens (États-Unis), Montserrat (Antilles) ou encore le Merapi (Indonésie), alterne entre des périodes relativement calmes, avec coulées de lave et formation d'un dôme, et des événements explosifs parfois très violents. Prévoir les transitions entre ces deux régimes est essentiel pour assurer la sécurité des populations voisines, mais demeure actuellement un vrai défi. Or les données expérimentales et les observations de terrain montrent que l'explosivité du magma est étroitement liée à son contenu en gaz. L'objectif de cette thèse est d'améliorer notre compréhension de l'évolution de ce contenu en gaz et de son influence sur l'activité volcanique, en nous appuyant sur des simulations numériques, l'analyse de données expérimentales ainsi que sur l'interprétation de données de déformation enregistrées au Merapi.Une part importante de ce travail réside dans le développement et l'amélioration de modèles d'écoulement en 2D pour prendre en compte le dégazage dans la partie supérieure du conduit, en régime transitoire. Nous présentons un modèle d'écoulement du gaz en temps qui tient compte des pertes en gaz aux bords du conduit et à sa sortie, selon les conditions présentes dans la roche encaissante et le dôme. Nous proposons également une adaptation des modèles de conduit permettant de coupler complètement l'écoulement du gaz avec celui du magma pour étudier l'évolution des conditions dans le conduit en régime transitoire. À partir de simulations de l'évolution du dégazage lors de l'emplacement d'un dôme, nous identifions les para-mètres contrôlant les pertes en gaz. Nos résultats montrent que ces pertes sont extrêmement sensibles à l'évolution de la perméabilité du magma et des gradients de pression autour du conduit en réponse au poids du dôme. La perméabilité du dôme a quant à elle peu d'influence. Au cours de la croissance du dôme, les pertes en gaz diminuent en profondeur. En haut du conduit, la pression du gaz augmente de quelques dizaines de MPa. Ces effets sont associés à une augmentation de l'explosivité du magma et de l'aléa volcanique en cas d'effondrement du dôme.Bien que la perméabilité du magma exerce un fort contrôle sur la perte de gaz, comme l'ont montré nos résultats, son évolution dans le conduit est peu contrainte. Les lois de perméabilité utilisées actuellement ne sont pas en accord avec l'ensemble des mesures réalisées sur des échantillons de magmas riches en silice. Dans le but d'améliorer notre compréhension du développement de la perméabilité dans le conduit, nous avons cherché à éclaircir le lien entre perméabilité, conditions d'écoulements, et caractéristiques géométriques du réseau de bulles connectées. Nous proposons une formulation du seuil de percolation, moment exact où le magma devient perméable compatible avec un grand nombre d'échantillons naturels et expérimentaux. Nous présentons aussi une nouvelle loi de perméabilité en accord avec la plupart des observations existantes, que nous avons intégrée à notre modèle 2D de dégazage. Nos résultats montrent qu'en fonction du nombre de bulles dans le magma et de la distribution de leurs tailles, l'importance des pertes en gaz et par conséquent les conditions d'écoulement dans le conduit varient d'effusives à explosives.Enfin, afin d'évaluer l'utilité des données de déformation pour suivre l'évolution des conditions d'écoulement, nous utilisons des modèles d'écoulement simples couplés à de la déformation élastique en 3D pour retrouver la déformation observée au sommet du Merapi peu avant l'éruption de 2006. Bien que ces modèles permettent de mieux comprendre les déplacements observés, le peu de données, associé à la complexité géologique et rhéologique du sommet, ainsi qu'à celle des processus physiques intervenant dans le conduit font qu'il est difficile de contraindre les conditions d'écoulement grâce à la déformation dans ce cas précis
At silicic volcanoes, such as Mount St Helens (United States), Montserrat (British West Indies), or Merapi (Indonesia), periods of relative quiescence, with lava flows and dome emplacement, alternate with explosive, sometimes very violent events. Forecasting the effusive/explosive transitions, which is essential for the safety of nearby populations, remains currently a real challenge. However, experimental as well as field observations provide evidence that magma gas content is a major clue for understanding explosivity. This thesis, based on numerical simulations, experimental samples analysis, as well as on the interpretation of ground deformation data recorded at Merapi volcano, aims at improving our understanding of gas loss evolution, and its impact on the eruptive regime.A major part of this work consisted in developing and improving 2D axisymmetric conduit flow models for integrating gas loss in transient conditions. We provide a time-dependent model for gas flow in the upper conduit, that accounts for gas loss both at the conduit walls and at its top, depending on conditions in the surrounding rock and dome. We also propose an adaptation of conduit flow models allowing for full coupling between magma and gas flow in 2D that should be used to further investigate flow conditions evolution during transient regimes. From time-dependent gas flow simulations in the case of an effusive dome emplacement, we identify controlling parameters for gas loss. Our results provide evidence that gas loss is extremely sensitive to the evolution of magma permeability and of pressure gradients around the conduit due to dome loading, whereas, contrary to the common idea, dome permeability has almost no influence. Along with dome growth, gas loss decreases at depth, thus causing an increase in the magma gas content. At the top of the conduit, this results in an increase in gas pressure by a few tens of MPa, thus increasing the likelihood of magma explosivity and hazard in the case of a rapid decompression due to dome collapse.Although magma permeability plays a major role for gas extraction, as revealed by our results, its evolution within the conduit is poorly constrained. Currently used permeability laws fail in reassembling the whole dataset of permeability measurements from natural and experimental silicic samples. In order to improve our understanding of permeability development in the conduit, we worked on linking permeability and flow conditions with geometrical parameters that characterise the connected bubble network, based on experimental samples analysis. We propose an expression for the percolation threshold, i.e. the very moment when magma becomes permeable, that succeeds in classifying a wide dataset of natural and experimental samples. We also develop a new permeability law that reassembles most of the existing observations, and implement it within our gas flow 2D model. Results show that depending on the number of bubbles within the magma and on their size distribution, gas loss and then magma flow conditions evolve from effusive to explosive conditions.Eventually, we evaluate the applicability of monitoring flow conditions from observed ground deformation by using simplified conduit flow models, coupled with elastic deformation in 3D, to interpret ground deformation recorded in the near field at Merapi a few days before the 2006 eruption. Although conduit flow models provide important clues for interpreting observed displacements, the sparsity of field observations together with the complexity of the volcano summit geology, rheology and processes happening in the conduit make it very complex to constrain flow conditions from observed deformation

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19

Hrbata, Jiří. "Návrh větracího systému rodinného domu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229445.

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Diploma thesis deals with design of the ventilation system for low-energy house. Introduction of the thesis is focused on ventilation needs and also includes a summary of main principals of ventilation systems which are commonly used in family houses. One chapter is dedicated to utilization of ground heat exchangers and also includes a CFD simulation. The actual design of the ventilation system for low-energy house assess the suitability of using local/central ventilation units and also determines the best method of controlling the system.

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20

Meaby, Victoria. "Nothing to lose? : a Constructed Grounded Theory of loss in the lives of young people who offend." Thesis, Durham University, 2019. http://etheses.dur.ac.uk/12972/.

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Links between young people's exposure to adversity and their offending behaviour have been widely researched within academia, but investigation into loss in the lives of young people who offend is extremely limited, particularly within community youth justice. Little is known about the impact of loss upon offending behaviours, or how young people feel or respond to loss. Using O'Neill's (2002) ethno-mimesis (a fusion of art, storytelling and ethnography) and Charmaz's (2000) Constructivist Grounded Theory, my research begins to address these gaps in knowledge. I undertook fieldwork across two distinct areas of North East England, working with young people and practitioners at Youth Offending Teams, community arts venues and a Local Authority Study Programme. Findings revealed the pervasive, often disenfranchised nature of loss in young people's lives, with loss of childhood, loss of opportunity and loss of agency of particular concern. In these situations offending became a viable way to make meaning from loss. This was particularly apparent in the absence of a caring and trusted pro-social adult, and/ or where young people had communication or emotional literacy difficulties. Offending also enabled marginalised young people opportunity to form connections and construct meaningful identities during, and in the aftermath, of loss. This research is unique. It discusses where connections with existing research, policy and practice might be made in relation to how loss is conceptualised and responded to within youth justice; offers fresh theoretical insight from a British perspective into marginalised young people's experiences of loss; shares how ethno-mimetic engagement has potential to enable fresh perspectives and encourage new ways of thinking about loss and emphasises the importance of understanding young lives from an intersectional perspective. Continuing to increase our understanding of loss in the lives of young people who offend is vital; for young people themselves, and for those who support them.

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21

Agrawal, Sachin. "Nondestructive evaluation of wooden logs using ground penetrating radar." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=4052.

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Thesis (M.S.)--West Virginia University, 2005.
Title from document title page. Document formatted into pages; contains xiv, 152 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 150-152).

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22

Tomic, David. "Service Aware Traffic Distribution in Heterogeneous A2G Networks." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-248995.

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Airplanes have different ways to connect to the ground, including satellite air-to-ground communication (SA2GC) and direct air-to-ground communication (DA2GC). Each connection/link offers a different varying amount of transmission capacity over flight time. The traffic generated in the airplane must be forwarded/sent to ground over the available links. It is however not clear how the traffic should be forwarded so that traffic quality of service (QoS) requirements are met. The thesis at hand considers this question, and implements an algorithm handling the forwarding decision with three different forwarding schemes. Those consider traffic parameters in calculating a value assigned to each traffic flow, over a combination of priority, delay requirement and the number of times a traffic flow is dropped. The forwarding algorithm relies on proposed in-flight broadband connectivity (IFBC) network traffic and air-to-ground (A2G) link models, which aim at approximating the network environment of future IFBC networks. It is shown that QoS requirements of traffic flows in terms of packet loss and delay cannot be satisfied with capacities offered by current DA2GC and SA2GC technology. For a future scenario, with higher assumed link capacities, the QoS requirements are met to a higher extent. This is shown in lower packet loss and delay experienced by the respective traffic flows. Further, it is shown that the performance can be improved with specific forwarding schemes used by the forwarding algorithm. It is also investigated how a web cache can be used as a fallback technology. For this a required web cache hit rate is found, which should be high enough to offload the network with content served from the cache. Overall, the thesis aims at proposing an efficient traffic forwarding technique, and at giving insight into an alternative if this technique fails.
Flygplan har olika sätt att ansluta till marken, inklusive satellit-mark-kommunikation (SA2GC) och direkt luft till markkommunikation (DA2GC). Varje anslutning/länk erbjuder en annan varierande mängd överföringskapacitet under flygtid. Den trafik som genereras i flygplanet måste vidarebefordras/skickas till marken över de tillgängliga länkarna. Det är emellertid inte klart hur trafiken ska vidarebefordras så att trafiksäkerhetskvaliteten (QoS) uppfylls. Avhandlingen handlar om denna fråga och implementerar en algoritm som hanterar vidarebefordringsbeslutet med tre olika vidarebefordringssystem. De betraktar trafikparametrar vid beräkning av ett värde som tilldelas varje trafikflöde, över en kombination av prioritet, fördröjningskrav och antalet gånger ett trafikflöde tappas. Vidarebefordringsalgoritmen är beroende av föreslagna bredbandsförbindelser (IFBC) i nätverk och A2G-länkmodeller, som syftar till att approximera nätverksmiljön för framtida IFBC-nätverk. Det visas att QoS-krav på trafikflöden när det gäller paketförlust och fördröjning inte kan tillgodoses med kapacitet som erbjuds av nuvarande DA2GC- och SA2GC-teknik. För ett framtida scenario, med högre antagna länkkapacitet, uppfylls QoS-kraven i högre utsträckning. Detta visas med lägre paketförlust och fördröjning som upplevs av respektive trafikflöden. Vidare är det visat att prestanda kan förbättras med specifika vidarekopplingsscheman som används av vidarebefordringsalgoritmen. Det undersöks också hur en webbcache kan användas som en återgångsteknik. För detta hittas en obligatorisk webbcache-träfffrekvens, som bör vara tillräckligt hög för att ladda upp nätverket med innehåll som serveras från cacheminnet. Sammanfattningsvis syftar uppsatsen till att föreslå en effektiv trafiköverföringsteknik och att ge insikt om ett alternativ om denna teknik misslyckas.

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23

Felsenstein, Klaus, and Klaus Pötzelberger. "The Asymptotic Loss of Information for Grouped Data." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 1995. http://epub.wu.ac.at/1432/1/document.pdf.

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We study the loss of information (measured in terms of the Kullback- Leibler distance) caused by observing "grouped" data (observing only a discretized version of a continuous random variable). We analyse the asymptotical behaviour of the loss of information as the partition becomes finer. In the case of a univariate observation, we compute the optimal rate of convergence and characterize asymptotically optimal partitions (into intervals). In the multivariate case we derive the asymptotically optimal regular sequences of partitions. Forthermore, we compute the asymptotically optimal transformation of the data, when a sequence of partitions is given. Examples demonstrate the efficiency of the suggested discretizing strategy even for few intervals. (author's abstract)
Series: Forschungsberichte / Institut für Statistik

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24

Roe, Gary N. "Loss and grief a guide for small groups /." Theological Research Exchange Network (TREN), 1998. http://www.tren.com.

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25

Dobbs, William F. ""Reclaiming lost ground : the future of electronic warfare in the USAF" /." Maxwell AFB, Ala. : School of Advanced Air and Space Studies, 2008. https://www.afresearch.org/skins/rims/display.aspx?moduleid=be0e99f3-fc56-4ccb-8dfe-670c0822a153&mode=user&action=downloadpaper&objectid=ac7f0a58-1d65-421d-bf9c-fb39ca9449b4&rs=PublishedSearch.

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26

Baize, David. "A “Drastic” Evaluation of the Ground-Water Pollution Potential of Karst Terrain: Lost River Ground-Water Basin, Warren County, Kentucky." TopSCHOLAR®, 1990. http://digitalcommons.wku.edu/theses/1889.

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Karst terrains, such as the Lost River Karst Ground-Water Basin, are extremely vulnerable to ground-water contamination. Seven physical factors: depth to water, recharge, aquifer media, soil media, topography, impact of the vadose zone, and hydraulic conductivity, are evaluated using the DRASTIC system to determine the ground-water pollution potential of the study area. A numerical value is calculated for each of the seven factors, and a map layer for each factor is produced. These layers are then “added” together to produce a DRASTIC ground-water pollution potential map. The effectiveness of each factor in evaluating the pollution potential of karst terrain is discussed. It was determined that small scale hydrogeologic features unique to karst areas provide significant influences on contaminant transport that are not addressed by the DRASTIC methodology. Therefore, it is recommended that modifications to the DRASTIC system be made by the users of the DRASTIC system when evaluating the pollution potential of a karst terrain.

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Turkstra, Trish. "Small groups relationships rooted in a shared journey, devotion to God and a heart for the lost /." Theological Research Exchange Network (TREN), 1995. http://www.tren.com.

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28

Stephen-Brownie, Charlotte Jane. "Earthquake-Induced Ground Fissuring in Foot-Slope Positions of the Port Hills, Christchurch." Thesis, University of Canterbury. Geological Sciences, 2012. http://hdl.handle.net/10092/9285.

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Following the 22 February 2011, MW 6.2 earthquake located on a fault beneath the Port Hills of Christchurch, fissuring of up to several hundred metres in length was observed in the loess and loess-colluvium of foot-slope positions in north-facing valleys of the Port Hills. The fissuring was observed in all major valleys, occurred at similar low altitudes, showing a contour-parallel orientation and often accompanied by both lateral compression/extension features and spring formation in the valley floor below. Fissuring locations studied in depth included Bowenvale Valley, Hillsborough Valley, Huntlywood Terrace–Lucas Lane, Bridle Path Road, and Maffeys Road–La Costa Lane. Investigations into loess soil, its properties and mannerisms, as well as international examples of its failure were undertaken, including study of the Loess Plateau of China, the Teton Dam, and palaeo-fissuring on Banks Peninsula. These investigations lead to the conclusion that loess has the propensity to fail, often due to the infiltration of water, the presence of which can lead to its instantaneous disaggregation. Literature study and laboratory analysis of Port Hills loess concluded that is has the ability to be stable in steep, sub-vertical escarpments, and often has a sub-vertically jointed internal structure and has a peak shear strength when dry. Values for cohesion, c (kPa) and the internal friction angle, ϕ (degrees) of Port Hills loess were established. The c values for the 40 Rapaki Road, 3 Glenview Terrace loess samples were 13.4 kPa and 19.7 kPa, respectively. The corresponding ϕ values were thought unusually high, at 42.0° and 43.4°.The analysed loess behaved very plastically, with little or no peak strength visible in the plots as the test went almost directly to residual strength. A geophysics resistivity survey showed an area of low resistivity which likely corresponds to a zone of saturated clayey loess/loess colluvium, indicating a high water table in the area. This is consistent with the appearances of local springs which are located towards the northern end of each distinct section of fissure trace and chemical analysis shows that they are sourced from the Port Hills volcanics. Port Hills fissuring may be sub-divided into three categories, Category A, Category B, and Category C, each characterised by distinctive features of the fissures. Category A includes fissures which display evidence of, spring formation, tunnel-gullying, and lateral spreading-like behaviour or quasi-toppling. These fissures are several metres down-slope of the loess-bedrock interface, and are in valleys containing a loess-colluvium fill. Category B fissures are in wider valleys than those in Category A, and the valleys contain estuarine silty sediments which liquefied during the earthquake. Category C fissures occurred at higher elevations than the fissures in the preceding categories, being almost coincident with bedrock outcropping. It is believed that the mechanism responsible for causing the fissuring is a complex combination of three mechanisms: the trampoline effect, bedrock fracturing, and lateral spreading. These three mechanisms can be applied in varying degrees to each of the fissuring sites in categories A, B, and C, in order to provide explanation for the observations made at each. Toppling failure can describe the soil movement as a consequence of the a three causative mechanisms, and provides insight into the movement of the loess. Intra-loess water coursing and tunnel gullying is thought to have encouraged and exacerbated the fissuring, while not being the driving force per se. Incipient landsliding is considered to be the least likely of the possible fissuring interpretations.

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Bianco-Miotto, Tina. "Loss of ABO antigens in haematological malignancies." Adelaide, S.A, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phb578.pdf.

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"May 2002" Includes bibliographical references (leaves 229-251) Describes the investigation of the alteration of ABH antigen expression on the surface of red blood cells in patients with haematological malignancies.

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Devaru, Dayakar. "Ground penetrating radar (GPR) based system for nondestructive detection of interior defects in wooden logs." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4955.

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Thesis (M.S.)--West Virginia University, 2006.
Title from document title page. Document formatted into pages; contains v, 128 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 106-107).

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31

Ortmann, Regina, and Caren Sureth-Sloane. "Can the CCCTB alleviate tax discrimination against loss-making European multinational groups?" Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/s11573-015-0780-6.

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In March 2011, the European Commission submitted a proposal for a Council Directive on an optional common consolidated corporate tax base (CCCTB). If this proposed CCCTB system comes into force, taxes calculated under the currently existing system of separate accounting might be replaced by a system of group consolidation and formulary apportionment. Then, multinational groups (MNGs) would face the decision as to whether to opt for the CCCTB system. Prior research focuses mainly on the differences in economic behaviour under both systems in general. By contrast, we study the conditions under which one or the other tax system is preferable from the perspective of an MNG, with a particular focus on loss-offsets. We identify four effects that determine the decision of an MNG: the tax-utilization of losses, the allocation of the tax base, the dividend and intragroup interest taxation. We find mixed results, e.g., that the CCCTB system proves advantageous for increasing loss/profit streams (e.g. from start-ups or R&D projects) of the individual group entities, whereas the system of separate accounting is beneficial for decreasing profit/loss streams (e.g. caused by a decrease in return from a mature product). The results of our analysis are helpful for MNGs facing the decision as to whether to opt for the CCCTB system and can also support legislators and politicians in the EU but also in other regions in their tax reform discussions. (authors' abstract)

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Ma, Hongyan. "User-system coordination in unified probabilistic retrieval exploiting search logs to construct common ground /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1581426061&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Lader, Olivier. "Une résolution projective pour le second groupe de Morava pour p ≥ 5 et applications." Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-00875761.

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Dans les années 80, Shimomura a déterminé les groupes d'homotopie du spectre de Moore V(0) localisé par rapport à K(2) la deuxième K-théorie de Morava. Plus tard, avec les travaux de Devinatz et Hopkins est apparu une autre suite spectrale convergeant vers les précédents groupes d'homotopies. Lorsque le paramètre premier p de la théorie K(2) est supérieur ou égal à cinq, la précédente suite spectrale dégénère. Ainsi, déterminer ces groupes d'homotopie revient à calculer les groupes de cohomologie du groupe stabilisateur de Morava à coefficients dans l'anneau de Lubin-Tate modulo p. En 2007, Henn a démontré l'existence, lorsque p > 3, d'une résolution projective du groupe de Morava de longueur quatre. Dans cette thèse, nous précisons une telle résolution projective. On l'applique ensuite au calcul effectif des groupes de cohomologie à coefficients dans l'anneau de Lubin-Tate modulo p. Enfin, on donne une seconde application, en redémontrant un résultat de Hopkins non publié sur le groupe de Picard de la catégorie des spectres K(2)-locaux.

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Nanni, Lorenzo. "Un metodo di misura di canale radio “Air-to-Ground”." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19377/.

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In questa tesi si è deciso di focalizzarsi sui segnali a onde millimetriche e banda-ultra larga (UWB), i quali rappresentano, con ogni probabilità, i componenti fondamentali delle future reti di 5° generazione(5G). Sono state eseguite delle misure per poter analizzare il comportamento di questi segnali in ambienti diversi utilizzando un drone. Lo scopo del mio elaborato consiste nella sincronizzazione delle missioni del drone con le operazioni di acquisizione degli strumenti di misura. Per poter realizzare il sistema di sincronizzazione è stato utilizzato il software di elaborazione di calcolo Matlab.

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Cullen, Caroline. "Maintained weight loss : facilitators and barriers." Thesis, University of Wolverhampton, 2015. http://hdl.handle.net/2436/621925.

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Ortmann, Regina, and Caren Sureth. "Can the CCCTB Alleviate Tax Discrimination Against Loss-making European Multinational Groups?" WU Vienna University of Economics and Business, Universität Wien, 2014. http://epub.wu.ac.at/4168/1/SSRN%2Did2442820.pdf.

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In March 2011, the European Commission submitted a proposal for a Council Directive on an optional common consolidated corporate tax base (CCCTB). If this proposed CCCTB system comes into force, taxes calculated under the currently existing system of separate accounting might be replaced by a system of group consolidation and formulary apportionment. Then, multinational groups (MNGs) would face the decision as to whether to opt for the CCCTB system. Prior research focuses mainly on the differences in economic behaviour under both systems in general. By con-trast, we study the conditions under which one or the other tax system is preferable from the per-spective of an MNG, with a particular focus on loss-offsets. We identify four effects that determine the decision of an MNG: the tax-utilization of losses, the allocation of the tax base, the dividend and intragroup interest taxation. We find mixed results, e.g., that the CCCTB system proves ad-vantageous for increasing loss/profit streams (e.g. from start-ups or R&D projects) of the individual group entities, whereas the system of separate accounting is beneficial for decreasing profit/loss streams (e.g. caused by a decrease in return from a mature product). The results of our analysis are helpful for MNGs facing the decision as to whether to opt for the CCCTB system and can also support legislators and politicians in the EU but also in other regions in their tax reform discussions. (authors' abstract)
Series: WU International Taxation Research Paper Series

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Larcher, Anna Manja. "Hope for the fatherless? : a grounded interpretive approach /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1718.pdf.

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Jadeja, Jayrajsinh. "A model for increasing yield in sawmills based on detection of subsurface defects in canted logs using ground penetrating radar (GPR) system." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5449.

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Thesis (M.S.)--West Virginia University, 2007.
Title from document title page. Document formatted into pages; contains ix, 106 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 75-76).

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Maurin, Mélanie. "En-jeu(x) de l'oubli : une contribution psychothérapique à l'accompagnement de patients dits déments." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM3065.

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Dans ce travail de recherche en psychologie clinique et psychopathologie, nous interrogeons la dimension de l'oubli dans la démence chez des personnes âgées. Plus spécifiquement, nous questionnons les mécanismes qui sous-tendent l'oubli, ses effets chez le patient et dans la relation ; ainsi que les techniques thérapeutiques spécifiques à mettre en place. L'utilisation du dispositif de psychodrame de groupe nous permet de mettre à jour des possibilités de traitement de l'oubli démentiel. Le fonctionnement groupal facilite une relance des fonctions psychiques de maintenance, de contenance et de pare-excitations des sujets déments. Les passages par le corps, l'affect et la motricité permettent de réaccéder à des traces corporelles, non verbales et de relancer un travail de représentation. La démarche de réminiscence se constitue dans le groupe, dans l'articulation des psychés en présence ; en ce sens nous parlons de construction intersubjective du souvenir. Dans notre pensée l'oubli démentiel apparaît comme une tentative adaptative du sujet face à la désorganisation démentielle. Nous distinguons deux formes d'oublis : une forme sidérative qui attaque la trace mnésique et provoque une déconstruction momentanée de l'inscription. Une forme progressive qui désinvestit les liens associatifs entre les différentes traces mnésiques, et coupe pour un temps l'inscription du réseau de sens
This study in clinical psychology and psychopathology explores the extent of memory loss amongst the elderly. More specifically, it examines the mechanisms underlying memory loss and the effects of this mental condition on both the patient and the patient's relationships. Another aspect of our research is to develop new therapeutic techniques using group psychodrama which gives us greater insight on the possibilities of treatments for memory loss dementia patients. The psychic functions are facilitated by group therapy which boosts the abilities of memory by volume, capacity and participation in dementia subjects. By looking at the body, the affects and motor skill, permit us to see the physical traits, the non-verbal traits and continue working to better their performance. In the psyche of the group we can see that this approach establishes a joint ability to recollect in the present; we are speaking about the intersubjectivity of collective memory. As we see it, memory loss dementia appears as an adaptive attempt by the subject confronted with disorganizational dementia. We can distinguish two forms of memory loss; one in which the end result attacks the traces of memory and provokes an unraveling of the ability to remember and a progressive form which reduces the associative links between the different forms of remembrance and cuts for a time the ability of memory to link to other senses

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Uduwawala, Disala. "A comprehensive study of resistor-loaded planar dipole antennas for ground penetrating radar applications." Doctoral thesis, Stockholm : Division of Electromagnetic Engineering, School of Electric Engineering, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4110.

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Dymski, Nikodem. "Lois de conservation pour la modélisation de dynamiques de groupe." Thesis, Université Côte d'Azur (ComUE), 2019. http://www.theses.fr/2019AZUR4073.

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Cette thèse est consacrée à la modélisation macroscopique du trac routier ou celle-ci décrit le trac avec des variables moyennées sur plusieurs voitures. Il se concentre principalement sur une situation dans laquelle le flux maximal de voitures est limité par un point qui reste fixe sur la route. Grâce à ces considérations, nous pouvons décrire le trafic à des postes de péage et à des chantiers. D'un point de vue mathématique des systèmes hyperboliques de lois de conservation avec condition de contrainte. La recherche est basée sur trois modèles macroscopiques, à savoir le modèle de Lighthill-Witham-Richards (LWR), le modèle Aw-Rascle-Zhang (ARZ) et le modèle de transition de phase (TP). Le but de la thèse est d'établir l'existence et les propriétés d'une solution faible. La thèse comprend 6 chapitres et 2 annexes. Dans le premier chapitre, nous introduisons les idées de base de la modélisation du trafic. Le second chapitre est dédié à une discussion détaillée des modèles macroscopiques de base dans le trac. Dans le troisième chapitre, nous décrivons le modèle LWR contenant une contrainte ponctuelle locale sur le flux. Le quatrième chapitre est dédié au modèle ARZ avec une contrainte ponctuelle locale sur le flux. Nous prouvons là l'existence de la solution faible correspondant au solver de Riemann non conservatif dans la classe des fonctions à variations bornées. Le but est obtenu en montrant la convergence d'une suite de solutions approchées construites à partir de la méthode de Wave Front Tracking. Dans le chapitre 5, nous décrions deux modèles TP avec contrainte ponctuelle locale sur le flux. Ensuite nous étudions leurs consistances, leurs L1loc - continuités et leurs domaines invariants. Le reste du chapitre est dédié à l'existence d'une solution faible dans la classe des fonctions a variations bornées pour l’un de ces modèles. Le but est obtenu en montrant la convergence d'une suite de solutions approchées construites à partir de la méthode de Wave Front Tracking. Le sixième chapitre est consacré à deux modèles macroscopiques sur les réseaux routiers. Le premier est le modèle LWR avec une contrainte mobile et le second est le modèle PT présenté dans le deuxième chapitre
This thesis is devoted to macroscopic traffic flow modelling, which describes traffic flow by variables averaged over multiple vehicles. It mainly focuses on a situation in which the maximum flow of cars is limited at a fixed point along the road. Thanks to such considerations, we can model traffic flow through toll gates or construction sites. From a mathematical point of view we consider systems of hyperbolic conservation laws with constraint condition. Research is based on three macroscopic models, namely Lighthill-Witham-Richards model (LWR), Aw-Rascle-Zhang model (ARZ) and phase transition model (PT). The aim of thesis is to establish the existence and properties of a weak solutions. The thesis consists of 6 chapters and 2 appendices. In the first chapter, we introduce basic ideas of traffic modelling. The second chapter is devoted to a detailed discussion of basic macroscopic traffic flow models. In the third chapter, we describe the LWR model with a local point constraint on the flow. The fourth chapter is devoted to ARZ model with local point constraint on the flow. We prove there the existence of the weak solutions, corresponding to a non-conservative Riemann solver, in the class of functions with bounded variation. The goal is obtained by showing the convergence of a sequence of approximate solutions constructed via the Wave Front Tracking method. In the fifth chapter, we describe two PT models with the local point constraint on the flow. Then we examine their consistency, L1loc-continuity and invariant domains. The remainder of the chapter is devoted to the existence result of a weak solution in the class of function with bounded variation for one of these models with a metastable phase. The goal is obtained by showing the convergence of a sequence of approximate solutions constructed via Wave Front Tracking method. The sixth chapter is devoted to two macroscopic models on road networks. The first is the LWR model with moving constraint on the flow and the second is the PT model introduced in the second chapter

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Mitchell, Sophie. "Examining the effect of acquired limb loss on the family network : a grounded theory study." Thesis, University of Essex, 2018. http://repository.essex.ac.uk/23026/.

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Background: Children and adults with limb loss acquired through disease or trauma, are faced with a range of physical and psychological challenges. Their family networks become an important platform for coping and recovery to occur, although little is known about the experiences of these networks. The small amount of research so far has only examined the views of spousal and parental carers. Aims: This research aimed to: 1) explore the experiences of family networks following a limb amputation within their family; and 2) to develop a theoretical model to explain how the family network experiences the limb loss. The use of ‘network’ was adopted to include kin identified as family, without legal or biological ties. Method: Data collection and analysis were guided by the Grounded Theory method. Members of the family networks (n = 14) were recruited nationally and interviewed over Skype or telephone. Interviews were conducted in a process moving from unstructured to semi-structured and structured interviews. Findings: A theoretical model was developed around the interaction of five core categories. Family members witness the perceived difficulties faced by the person with limb loss, leading to an evoked responsibility to provide support based on this witnessing. Families subsequently experience the shared impact and challenges of limb loss; together with numerous emotional reactions. This leads to the use of various forms of coping in order to resolve these experiences and associated emotions. Conclusions: Families are involved in the processes and challenges following on from an amputation in another family member, regardless of gender, relationship structure and type of amputation. The theoretical model can be understood through the integration of ideas from systemic theory and social psychology. The issues identified must be considered in services, to support families who aid recovery following on from an amputation.

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Mallet, Marie-laure. "Analyse comparative des relations entre les communautés latinos de Miami, Los Angeles and Boston." Thesis, Paris 4, 2013. http://www.theses.fr/2013PA040077.

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Cette thèse traite de la cohésion des groupes latinos dans la société américaine. Elle analyse l’influence des relations intra-communautaires sur l’insertion des Latinos dans la société américaine et déconstruit la représentation des communautés latinos perçues comme monolithiques afin de déterminer dans quelle mesure ces relations conduisent à des assimilations différenciées. Elle montre notamment que l’insertion dans la société américaine découle des relations entre différentes communautés latinos et analyse l’influence du contexte de réception sur cette insertion socio-économique, sur les pratiques politiques et, de façon plus générale, le poids politique de ces groupes.Le choix de métropoles aussi diverses que Miami, Los Angeles et Boston souligne l’importance du contexte urbain sur la formation des relations entre ces différents groupes latinos, et son influence sur leur insertion dans la société américaine, mesurée par les stratégies adoptées par les groupes latinos et par leur participation politique. Cette analyse est cruciale pour comprendre la complexité des interactions entre groupes dont les relations représentent un enjeu de taille, car elles permettent d’anticiper l’avenir des relations ethniques aux Etats-Unis. Cette perspective ouvre ainsi sur un contexte sociologique plus large, permettant d’anticiper les problèmes politiques et économiques auxquels les Etats-Unis seront confrontés en matière d'intégration, d’immigration et de représentation dans les décennies à venir
This dissertation examines the cohesion of Latino groups in American society. It analyses the influence of intra-community relations on the integration of Latinos in American society and deconstructs the representation of Latino communities perceived as a monolithic group allowing to determine to what extent these relationships lead to different assimilation paths. In particular, it shows the differential impact of the relationships between different Latino communities on their integration into American society and investigates the influence of the context of reception on the socio-economic integration of different Latino groups, policies and practices, and, more generally, their political clout.The choice of cities as diverse as Miami, Los Angeles and Boston highlights the importance of the urban context on the formation of relationships between the different Latino groups, and its influence on their integration into American society, as measured by the group strategies that Latinos adopt and their political participation.This analysis is crucial to the understanding of the complex interactions between Latino groups whose relationships are a major challenge, as they allow to anticipate the future of ethnic relations in the United States. This perspective opens to a broader sociological context which may help better comprehend the political and economic issues that the United States will confront in topics such as integration, immigration and representation in the coming decades

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Appleget, Andrew L. "A Consolidated Global Navigation Satellite System Multipath Analysis Considering Modern Signals, Antenna Installation, and Boundary Conditions for Ground-Based Applications." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1593112317616893.

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Benzo, Roberto Martín. "Acceptability and efficacy of a low intensity family-based weight loss intervention." Thesis, University of Iowa, 2015. https://ir.uiowa.edu/etd/1826.

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Prevalence of childhood overweight and obesity has tripled in the United States in the last 30 years, resulting in 31.8% of youth (ages 2-19 years of age) classified as overweight or obese.1,2 To date many high-intensity and medium-intensity programs have been developed and tested in efforts to ameliorate the high prevalence of childhood obesity, however there is a gap in the testing and implementation of low-intensity family-based treatments.3–7The Traffic Light Program is the only childhood obesity program that has published long-term outcomes and was developed by Epstein et. al., however it only includes children from ages 6-12. We developed an 8-week family based childhood obesity program (Healthy Hawkeye Program) to test the feasibility and efficacy of an adapted version (light intensity) of the Traffic Light Program in families of overweight and obese children. To our knowledge, this is the first study to test the efficacy of a low-intensity (21 hours) comprehensive family-based intervention specifically tailored for overweight and obese children from 6 to 17 years of age. Measures include body composition (weight, fat mass, lean body mass, body fat %, BMI, waist circumference), sedentary, light and moderate levels of physical activity (wrist-worn Generative Accelerometer), dietary quality (caloric intake, fruit/vegetable daily servings), measures of nutritional and physical activity self-efficacy, Lifestyle Behavior Checklist (LBC), Family Nutrition and Physical activity (FNPA) survey, Satisfaction with Life Scale, and the Healthy Hawkeye Program Evaluation Survey. We hypothesize that participants will improve in selected (1) health measures (weight, caloric intake, daily fruit intake, daily vegetable intake, sedentary, light, and moderate physical activity levels), (2) improve in selected theoretical constructs (self-efficacy, behaviors, environments), and (3) will find the Healthy Hawkeye Program acceptable and helpful. A total of five families were recruited and only 3 families (3 mothers, 2 male children, and 1 female child) completed the program (attended 6 of 8 weekly meetings). The very low sample size of only 3 families limited the statistical analysis. The results showed parents reduced their absolute weight by 5.6 lbs and children slightly increased by 0.1 lbs. Both parents and children decreased their daily sedentary time as well as increased their daily moderate activity. Various measures of self-efficacy, behaviors, nutrition improved among parents and children. Parents and children found the program to be acceptable and helpful.

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McKinney, Bradley W. "An architecture of total loss : building learning communities, growing learning spaces." Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1286420.

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This document voices the story of siting and constructing a hidden, "squatted studio" space within a bridge superstructure over the White River in downtown Anderson, Indiana. It includes interpretations of this "build-design-build" project; a field study (CapAsia) in Sri Lanka with faculty and students from the University of Moratuwa; and the author's work alongside undergraduate design students and faculty colleagues at Anderson University, Anderson, Indiana. The project documents and extends occasions of experience that inform a pedagogy of total loss teaching. The `squatted studio' is presented as architectural form and practice congruent with a total loss approach to learning understood by these statements: there is nothing to gain by total loss teaching as there is no profit in it-waste nothing, and make useful everything at hand. The subversive transformation of materials and space by communities of learners illuminates the affects of total loss teaching.
Department of Architecture

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Armstrong, Hannah. "The lost landscapes and interiorscapes of the eighteenth-century estate : reconstructing Wanstead House and its grounds." Thesis, Birkbeck (University of London), 2017. http://bbktheses.da.ulcc.ac.uk/200/.

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Wanstead House was built by Colen Campbell between 1713-20 for Richard Child, later Viscount Castlemaine and 1st Earl Tylney. The house, furnished by leading designer of the Georgian period, William Kent, was recognized as one of the ‘noblest houses in Europe’ and displayed the same level of opulence as major seats such as Chatsworth or Houghton, but within the peripheries of London. The Wanstead landscape was created by important designers George London and Henry Wise, Charles Bridgeman, William Kent and Humphry Repton. However, in June 1822, the entire contents of Wanstead was sold in order to settle significant debts accumulated by its owners, William and Catherine Pole Tylney Long Wellesley. Two years later, the house was demolished, and the building material was sold. Due to its demolition and the decline of its landscape, Wanstead is a major loss to academic studies of the eighteenth-century estate. This thesis draws on a broad range of widely dispersed material evidence to present a much-needed chronological history of Wanstead. It seeks to ‘animate’ the property, fully considering it as a lived space, and as a mutable environment, in the constant process of development. Other themes of this thesis include social status and the country house, estate management, and the significance of geographical location. The introduction provides an account of the 1822 Wanstead sale and outlines the historiography and methodology. Due to the nature of the dispersed evidence, the methodological discussion is necessarily detailed, addressing the challenges and importance of cross-examining material for this study of a lost house. Chapter one examines Josiah Child’s acquisition of Wanstead, and how he laid the foundations for the estate’s future glory. Chapters two and three address improvements carried out by Richard Child between 1704 and 1750.Chapter four is a study of the ownerships of the second half of the eighteenth century. The conclusion returns to the Wanstead sale, evaluating the impact of Wanstead’s loss and assessing how the study of such a lost house can contribute to our understanding of eighteenth-century estates more broadly.

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Andersson, Hanna, and Catharina Malmén. "Vikten av att vara en grupp : en intervjustudie om gruppens betydelse i viktminskningsgrupper." Thesis, Högskolan i Gävle, Avdelningen för kultur-, religions- och utbildningsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-12007.

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Syftet med studien var att undersöka om och i så fall hur personer som har genomgått viktminskning i grupp upplever att de har påverkats av själva gruppen samt söka få förståelse för själva grupprocessen. Metoden som användes var intervju, där fem personer i åldrarna 32- 48 år ingick, en man och fyra kvinnor. Resultatet som framkom var att gruppen har påverkat personerna på olika sätt, till exempel genom bidragandet av motivation och socialt stöd som för många har underlättat deras resa mot en sundare livsstil. Gruppen hade en större inverkan i de fallen där personerna kände varandra och där det öppnades upp för diskussion och reflektion gruppmedlemmarna sinsemellan, något som också bidrog till lärande. Slutsatsen är alltså; Ja, gruppen har en påverkan, men hur pass stor den påverkan är skiljer sig mellan olika grupper och individerna som befinner sig i dem.

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Stebbins, J. W. "Understanding the experiences of the bereaved : interpreting how the bereaved give meaning to their loss in the context of a suicide-bereaved self-help support group /." Connect to thesis, 2001. http://eprints.unimelb.edu.au/archive/00000565.

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Sanford, Rebecca L. "An Exploratory Factor Analysis of the Survivor of Suicide Support Group Facilitator Scale: Identifying Meaningful Factors for Group Facilitation and Outcomes." UKnowledge, 2016. http://uknowledge.uky.edu/csw_etds/12.

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Support groups for suicide loss survivors are a relatively common resource used by those who are left to cope in the aftermath of a suicide death. Though descriptive studies have been used to provide an overview of support groups in the past, there have been no efforts to understand nuances of these groups and the impact of these groups and differing facilitation styles on the bereavement experience for attendees. This study explores primary data collected between March 2015 and December 2015 with a sample of 138 survivor of suicide loss support group facilitators in the United States and several other countries. Meaning making and meaning reconstruction is presented as the primary theory used to examine the attitudes of support group facilitators. Basic analytic procedures were used to explore sample descriptives, and an Exploratory Factor Analysis (EFA) with an oblique rotation was used to identify the factors within the Survivor of Suicide Loss Support Group Facilitator Scale. Three factors were revealed with a simple structure, representing the latent themes of (1) Facilitator Perspective on the Role of the Story (α=.73), (2) Facilitator Perspective on the Role of the Facilitator (α=.63), and (3) Facilitator Perspective on Role of the Loss Survivor (α.59). Bivariate analyses revealed that factors 1 and 2 both had a significant relationship with length of time the facilitator had been leading the group, facilitator’s level of compassion satisfaction, and facilitator’s level of burnout. The findings of the EFA support the use of the scale as a tool to discern differences in attitudes about the role of meaning making and sharing of stories in the group as well as the role of the facilitator in aiding this process. The findings provide important information for understanding variation in support group facilitation styles and have implications for future exploration of outcomes for group attendees based on facilitator attitude and style. Implications for practice and future research are discussed.

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Dissertations / Theses on the topic 'Loss of ground'

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