Gotowe bibliografie tematyczne / Collapses

Gotowa bibliografia na temat „Collapses”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 19 lutego 2023

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Artykuły w czasopismach na temat "Collapses"

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Hu, Wentao, i Tandong Yao. "Geometric similarity of the twin collapsed glaciers in the west Tibet". Open Geosciences 13, nr 1 (1.01.2021): 1463–75. http://dx.doi.org/10.1515/geo-2020-0316.

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Abstract Two adjacent glaciers collapsed consecutively in the Western Xizang Autonomous Region, China, on July 17 and September 21, 2016, presumably triggered by relatively intensive climate change in this region, leading to massive downstream ice and mud avalanches. After these twin glacier collapses, there have been many researches, which mainly focus on the physical characteristics of these two glaciers while lack the differences between them and the other glaciers. In this study, the geometric features and energy distribution along the glacier centerlines are investigated to identify the differences between these two collapsed glaciers and other glaciers in the western Tibetan Plateau. The anomaly of climate change is presumed to be the trigger of the twin glacier collapses in accordance with existing research results, whereas in this study, the striking geometric similarity between the centerlines of the twin glaciers, which is quantitatively interpreted by the Fréchet distance among the glacier centerlines, unearth some novel mechanisms. The essential point in these new mechanisms is the energy distribution along the glacier centerlines. A hypothesis based on the principle of energy conservation is derived to demonstrate the mechanisms and dynamic processes of the glacier collapses. Furthermore, on the basis of the geometric similarity and energy distribution of the glacier centerlines, a risk assessment of glacier collapse in the western Tibetan Plateau is implemented to facilitate glacier disaster prevention.
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Marsudi, Dianita Ratna Kusumastuti, Nursetiaji Pamungkas, Dedi Budi Setiawan, Primasiwi Harprastanti i Marton. "Study of Structural Analysis of Damaged Concrete Beams Strenghted with Carbon Fiber Reinforced Polymer". International Journal of Advances in Scientific Research and Engineering 08, nr 04 (2022): 29–39. http://dx.doi.org/10.31695/ijasre.2022.8.4.4.

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It is necessary to repair the cracks in the concrete structure to prevent further damage that can lead to the collapse of the structure. Repairs can restore and increase the strength of structural elements so that they are able to withstand the load in accordance with the design load, finally further decisions can be made for the next function. The results of the flexural strength test of K-150 collapsed concrete beams 100% able to withstand a load of 58 kN, K-250 collapsed 100% able to withstand a load of 64.33 kN, K-150 coated with CRFP tensile part collapsed 100% able to withstand a load of 82 kN, K -250 is coated with CRFP, the tensile part collapses 100% able to withstand a load of 91.67 kN, the quality of K-250 collapses 60% is able to withstand a load of 39.17 kN. K-250 strength concrete beam collapsed 60% maximum CRFP repair able to withstand a load of 87.67 kN. For testing of concrete beams with f'c quality of 20.71 MPa, 100% collapse with a maximum average of 29.00 MPa. The flexural strength of the concrete beam with f'c quality is 20.71 MPa, 60% collapse with an average load of 19.00 MPa. For the flexural strength of the f'c 20.71 MPa concrete beam, improvements were made to be able to withstand an average load of 52.86 MPa. Analysis of the test results by increasing the area and CRFP can increase the bearing capacity of concrete blocks. If in a construction work there is a doubt from the user about the portal being built, then CRFP can increase its flexural strength.
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Yang, Xiaoning, Brian W. Stump i W. Scott Phillips. "Source mechanism of an explosively induced mine collapse". Bulletin of the Seismological Society of America 88, nr 3 (1.06.1998): 843–54. http://dx.doi.org/10.1785/bssa0880030843.

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Abstract Mining explosions and collapses, in addition to earthquakes, may trigger the future Comprehensive Test Ban Treaty (CTBT) monitoring system. Many shallow, spontaneously occurring mine collapses have implosional source mechanisms that might provide a physical basis to discriminate them from explosions. In this study, an explosively induced mine collapse was investigated. The collapse occurred immediately after the support pillars of a 320-m-deep underground mine opening were destroyed by explosives. It had an Lg body-wave magnitude (mbLg) of 2.8. We analyzed free-surface ground-motion data (within 1200 m) from the collapse by waveform forward modeling and time-dependent source moment-tensor inversion. The results indicate that the source mechanism of the collapse can be represented by a horizontal opening and closing crack. The time functions of the diagonal source moment-tensor components are similar to that of a spall source accompanying an underground explosion. A unique source characteristic of the induced collapse is that, unlike spontaneous collapses, the induced collapse initiated as a tensile crack. Because of the initially expansive source characteristic, this kind of induced mine collapses may pose some difficulties to the seismic discrimination problem. Despite the similarities between the induced mine collapse and underground explosions, the collapse has a more band-limited source spectrum and seems to be more efficient in shear and surface-wave generation.
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Ramalho, Ricardo S., Gisela Winckler, José Madeira, George R. Helffrich, Ana Hipólito, Rui Quartau, Katherine Adena i Joerg M. Schaefer. "Hazard potential of volcanic flank collapses raised by new megatsunami evidence". Science Advances 1, nr 9 (październik 2015): e1500456. http://dx.doi.org/10.1126/sciadv.1500456.

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Large-scale gravitational flank collapses of steep volcanic islands are hypothetically capable of triggering megatsunamis with highly catastrophic effects. Yet, evidence for the generation and impact of collapse-triggered megatsunamis and their high run-ups remains scarce or is highly controversial. Therefore, doubts remain on whether island flank failures truly generate enough volume flux to trigger giant tsunamis, leading to diverging opinions concerning the real hazard potential of such collapses. We show that one of the most prominent oceanic volcanoes on Earth—Fogo, in the Cape Verde Islands—catastrophically collapsed and triggered a megatsunami with devastating effects ~73,000 years ago. Our deductions are based on the recent discovery and cosmogenic3He dating of tsunamigenic deposits found on nearby Santiago Island, which attest to the impact of this giant tsunami and document wave run-up heights exceeding 270 m. The evidence reported here implies that Fogo’s flank failure involved at least one fast and voluminous event that led to a giant tsunami, in contrast to what has been suggested before. Our observations therefore further demonstrate that flank collapses may indeed catastrophically happen and are capable of triggering tsunamis of enormous height and energy, adding to their hazard potential.
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Ivanov, Plamen, Boyko Berov i Nikolai Dobrev. "Mapping of the terrains to rockfall susceptibility". Engineering Geology and Hydrogeology 32, nr 1 (2018): 31–38. http://dx.doi.org/10.52321/igh.32.1.31.

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Rock collapses phenomena are one of the main processes constituting the geological hazard. Most commonly, the concept of "collapses" covers several different types of rock deformations: rockfall (linear and wedge-shaped), rock toppling, etc. It is difficult to predict the exact moment of the occurrence of a rock collapse. For this reason, it is necessary to know the potentially dangerous regions and areas in which this phenomenon may occur or to plot the sites by susceptibility to rock collapses. This will give an idea of location of hazardous areas with preconditions for collapses, and on this basis the necessary preventive measures can be identified. The main types of rock collapses and slope conditions - engineering geological, geomorphological, tectonic, are discussed. The methodological approach is given for the mapping of the terrains by susceptibility to rock collapses. Issues related to the scale of the maps compiled are clarified.
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Reznik, Рetro, Sergiy Grebenchuk, Roman Koreniev i Vitaliy Bondarenko. "Research of the specific steel shells progressive collapse prevention". ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 1, nr 52 (5.07.2019): 58–64. http://dx.doi.org/10.26906/znp.2019.52.1676.

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The article deals with coatings in the form of the specific steel shells. After a detailed analysis certain number of accidentsand collapses, these collapses can be classified as “progressive” collapse. The main purpose of the article is the developmentof design algorithms for evaluation of the stress-strain state and preventing the progressive collapse of the specific steelshells. The method of prevention progressive collapse has been developed in the form of a constructive modernization.The comparative finite-element analysis of the strained-strain state of the specific shells original models, models of discretecontinualribbed shells (with constructive upgrading) and models of solid ribbed shells has been carried out. From the analysisresults it can be concluded that the proposed modernization method can be considered as one of the possible options forpreventing progressive collapses and increasing the bearing capacity of specific steel shells.
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Mohamadi, Bahaa, Timo Balz i Ali Younes. "Towards a PS-InSAR Based Prediction Model for Building Collapse: Spatiotemporal Patterns of Vertical Surface Motion in Collapsed Building Areas—Case Study of Alexandria, Egypt". Remote Sensing 12, nr 20 (12.10.2020): 3307. http://dx.doi.org/10.3390/rs12203307.

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Buildings are vulnerable to collapse incidents. We adopt a workflow to detect unusual vertical surface motions before building collapses based on PS-InSAR time series analysis and spatiotemporal data mining techniques. Sentinel-1 ascending and descending data are integrated to decompose vertical deformation in the city of Alexandria, Egypt. Collapsed building data were collected from official sources, and overlayed on PS-InSAR vertical deformation results. Time series deformation residuals are used to create a space–time cube in the ArcGIS software environment and analyzed by emerging hot spot analysis to extract spatiotemporal patterns for vertical deformation around collapsed buildings. Our results show two spatiotemporal patterns of new cold spot or new hot spot before the incidents in 66 out of 68 collapsed buildings between May 2015 and December 2018. The method was validated in detail on four collapsed buildings between January and May 2019, proving the applicability of this workflow to create a temporal vulnerability map for building collapse monitoring. This study is a step forward to create a PS-InSAR based model for building collapse prediction in the city.
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Kremer, Kyle, Claire S. Ye, Sourav Chatterjee, Carl L. Rodriguez i Frederic A. Rasio. "The Role of “black hole burning” in the evolution of dense star clusters". Proceedings of the International Astronomical Union 14, S351 (maj 2019): 357–66. http://dx.doi.org/10.1017/s1743921319007269.

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AbstractAs self-gravitating systems, dense star clusters exhibit a natural diffusion of energy from their innermost to outermost regions, leading to a slow and steady contraction of the core until it ultimately collapses under gravity. However, in spite of the natural tendency toward “core collapse,” the globular clusters (GCs) in the Milky Way exhibit a well-observed bimodal distribution in core radii separating the core-collapsed and non-core-collapsed clusters. This suggests an internal energy source is at work, delaying the onset of core collapse in many clusters. Over the past decade, a large amount of work has suggested that stellar black holes (BHs) play a dynamically-significant role in clusters throughout their entire lifetimes. Here we review our latest understanding of BH populations in GCs and demonstrate that, through their dynamical interaction with their host cluster, BHs can naturally explain the distinction between core-collapsed and non-core-collapsed clusters through a process we call “black hole burning.”
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Luo, Jing, Weilin Xu, Jun Deng, Yanwei Zhai i Qi Zhang. "Experimental Study on the Impact Characteristics of Cavitation Bubble Collapse on a Wall". Water 10, nr 9 (15.09.2018): 1262. http://dx.doi.org/10.3390/w10091262.

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As a hydrodynamic phenomenon, cavitation is a main concern in many industries such as water conservancy, the chemical industry and medical care. There are many studies on the generation, development and collapse of cavitation bubbles, but there are few studies on the variation of the cyclic impact strength on walls from the collapse of cavitation bubbles. In this paper, a high-speed dynamic acquisition and analysis system and a pressure measuring system are combined to study the impact of a cavitation bubble generated near a wall for various distances between the cavitation bubble and the wall. The results show that (1) with the discriminating criteria of the impact pressure borne by the wall, the critical conditions for the generation of a micro-jet in the collapse process of the cavitation bubbles are obtained, and therefore collapses of cavitation bubbles near the wall are mainly divided into primary impact area collapses, secondary impact area collapses and slow release area collapses; (2) it can be seen from the impact strength of the cavitation bubble collapse on the wall surface that the impact of cavitation bubbles on the wall surface during the first collapse decreases as γ (the dimensionless distance between the cavitation bubble and the wall) increases, but the impact of the second collapse on the wall surface increases first and then decreases sharply. When γ is less than 1.33, the impact on the wall surface is mainly from the first collapse. When γ is between 1.33 and 2.37, the impact on the wall surface is mainly from the second collapse. These conclusions have potential theoretical value for the utilization or prevention and control technologies for cavitation erosion.
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Aguilar, L. A., D. Merritt i M. Duncan. "Cold Collapse as a Way of Making Elliptical Galaxies". Symposium - International Astronomical Union 127 (1987): 519–20. http://dx.doi.org/10.1017/s0074180900186036.

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SummaryWe investigate whether dissipationless collapse starting from very cold, non-rotating initial conditions can produce objects resembling real elliptical galaxies. We also study the effect of various initial geometries on the shape of the final object. Collapses that are initially very cold (2T/W < 0.1) are different from warmer collapses, due to the presence of a dynamical instability associated with clumping of nearly-radial orbits (Polyachenko 1981). This instability can produce very elongated bars (1.6 to 2.1 axis ratio) from spherical initial conditions. the instability is also present in models evolved from oblate and triaxial initial conditions. Warm collapses tend to preserve their initial shapes. Cold initial conditions produce objects whose surface density profiles are well fit by a de-Vaucouleurs law; warm collapses, on the other hand, produce a core-halo profile. A large collapse factor seems necessary to produce objects resembling real galaxies; the same collapse factor guarantees the presence of the radial orbit instability. It thus appears that initial flattening is not crucial for producing prolate or nearly prolate galaxies. Oblate galaxies, on the contrary, seem very difficult to form, unless extremely flattened initial conditions are invoked. Preliminary experiments suggest that these results are not changed by realistic amounts of angular momentum.
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Rozprawy doktorskie na temat "Collapses"

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Kashyap, Mukesh. "Decision support to avoid collapses in structural refurbishment projects". Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/34410.

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Safety management to avoid collapses during structural refurbishments of buildings has been of great concern to site professionals and management involved in structural refurbishments. The problems hindering safety in refurbishment projects were identified as: process bottlenecks, absence of a structured refurbishment process and limitations in the use of decision support tools. The aim of the research was to develop a Safety-Integrated Refurbishment Process Model (RPM) and establish its viability as the basis for a Decision Support System (DSS) to avoid structural collapses in refurbishment projects.
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Wintels, Werner. "Synoptic energetics of planetary-scale collapses of available potential energy". Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84450.

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We identify physical processes and localized atmospheric structures that modulate the global-scale atmospheric available potential energy (APE). A 1979--95 time series of Northern Hemisphere APE is derived from the National Centers for Environmental Prediction (NCEP) reanalysis. We discern an average three-day cycle in the APE depletion rate dA/dt with a time series of intraseasonal (1.6--180-day) fluctuations. Synoptic-scale APE depletion events are falls and subsequent rises in dA/dt, and are classified as APE collapses when exceeding climatologically-derived thresholds of APE fall and dA/dt. Three associated regional baroclinic waves are observed. West Pacific warm surges (Type A) accompany cyclogenesis over Japan, anticyclogenesis over the west-central North Pacific, and shallow East Asian cold surges. Bering warm surges (Type B) comprise intense southerly flow across the Bering Strait, cyclogenesis near the Kamchatka Peninsula, and intense anticyclogenesis over Alaska. Atlantic Canada warm surges (Type C) include onshore warm flow and eastern North American storm tracks.
January/February 1989 brought the largest vacillation- and synoptic-scale APE collapses of the study period. A pronounced Madden-Julian Oscillation (MJO) modulated equatorial convection over the Indian Ocean during the APE build-up. The initial APE collapse coincided with Type A development and intensifying MJO convection shifting to the West Pacific warm pool, which was prominent because of the 1988--89 La Nina. Extensive large-scale ascent amplified the thermally direct Hadley cell circulation, with descent strong over East Asia. The second collapse was associated with Type B development characterized by a record-breaking Alaska anticyclone.
Factors explaining lacking precision in energy budget calculations include missing o values above 100 hPa, limited representation of subgrid processes, and limited temporal resolution of diurnal convection over tropical landmasses.
Correlation analysis shows baroclinic conversion (diabatic generation) accounting for 80% (20%) of vacillation-scale dA/dt fluctuations. Baroclinic conversion contributes considerably (69%) to the synoptic variability only during synoptic-scale APE collapses (23 January to 4 February), illustrating the prominence of resolvable baroclinic processes during these periods.
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Yuan, Xiaoping. "Extensional collapses in the overpressured frictional upper crust based on limit analysis". Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEE009/document.

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Dans ce manuscrit nous développons l'approche cinématique 2D du calcul à la rupture pour examinerles effondrements en extension (ou failles normales) de la croûte supérieure cassante qui résultent desurpressions de fluides. Les sujets d'intérêt liés à la déformation en extension sont (1) les roles de lapression des fluides, des processus de surface, et des propriétés des matériaux et des failles sur lastabilité des structures d'extension; (2) la formation de failles normales à faible pendage et de failleslistriques; (3) la distribution de la déformation au dessus d'un glissement à faible pendage; et (4)l'influence de l'adoucissement mécanique des failles et des processus de sédimentation sur cettedistribution.Cette approche mécanique est vérifiée par la théorie du prisme critique de Coulomb, et la généralise pour étudier la topographie complexe de la péninsule de Mejillones dans le Nord du Chili. Cetteapproche est aussi appliquée à l'instabilité gravitaire dans le delta du Niger en reliant les structurescompressives en bas de pente aux structure extensives en amont par un détachement profond. Nousprédisons des surpressions de fluides beaucoup plus élevée que celles obtenues par application duprisme de Coulomb. Enfin, cette méthodologie est appliquée à l'étude de la forme de failles normalesreliant un détachement profond à la surface. Dans le cas du delta du Niger, nous montrons que lesfailles à faible pendage et les failles listriques impliquent que la profondeur de rétention des fluides estfaible. La version séquentielle de l'analyse limite ouvre de nouvelles voies pour suivre l'évolutionstructurale dans le temps du jeu sur les failles normales. Les simulations montrent en particulier qu'unefaille normale tourne vers des pendage plus faibles au fur et à mesure de la dénudation du mur, formantune région qui passe du mur au toit de la faille active en rotation. La prédiction de cette région estillustrée par des expériences analogiques et des exemples de terrain
This manuscript develops a 2D kinematic approach of Limit Analysis to examine the extensionalfailures in the brittle, upper crust resulting from fluid overpressures and normal faulting. There aremany interesting topics related to the extensional deformation such as (1) the roles of fluid pressure,topographic process, material and fault properties on the stability of extensional structures; (2) theformation of low-angle and listric normal fault; (3) the deformation pattern due to slip on a low-anglefault; and (4) the influence of fault softening and sedimentation processes on this deformation pattern.This mechanical approach applied to wedge prototypes is validated by the critical Coulomb wedge(CCW) theory, and it generalizes the CCW theory to investigate the complex topography on theMejillones peninsula, Northern Chile. Additionally, this approach is also applied to investigate gravityinstability of Niger Delta by linking down-slope compressional to up-slope extensional failures througha deep detachment. We predict much higher fluid overpressures than that of the CCW theory. Finally,this Limit Analysis methodology is applied to investigate the shape of normal fault linking a lowdetachment to the surface. The application to Niger Delta implies that the formation of very low-angleand strongly listric faults results from a shallow fluid-retention depth. The sequential version of LimitAnalysis opens new ways to envision the structural evolution through time resulting from normalfaulting. The simulations show that the normal fault rotates during extension, forming a region of Footto-Hanging Wall (FHW) where the material in the footwall is sheared upon entering the hanging wall.The creation of the FHW region is illustrated by sandbox experiments and field examples
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Arcangeli, Daniele. "Scenarios of lateral collapses of the Vavilov seamount in the central Tyrrhenian sea". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18134/.

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The strong EW asymmetry observed for the Vavilov seamount could be the result of an ancient collapse from its western flank. Two scenarios for the pre-collapse morphology of the seamount are built up by reshaping the western flank of Vavilov and modelling it as the eastern one. In scenario 1 the detached mass is assumed to slide down on the present bathymetry, i.e. the sliding surface outside the detachment niche is identified with the today’s abyssal plane to the west of Vavilov. Instead, in scenario 2 it is assumed that the difference between the depth of the western (less deep) and eastern (deeper) abyssal planes is due to the deposition and subsequent reworking of the collapsed material. Therefore, in scenario 2 the identified deposit is removed from the present bathymetry, while the western flank is reshaped approximately like in scenario~1. The motion of the landslide is simulated by the model UBO-BLOCK2, developed by the Tsunami Research Team of the University of Bologna, that treats it as a grid of blocks sliding under the effect of friction, drag forces and interaction forces. The influence of various parameters on the model's output is discussed for simulations that regard scenario 1. For scenario 2, the agreement between the hypothesised deposit and the one computed through the simulations is used to tune the model parameters, and in particular the sea bottom friction coefficient, that is the one that most affects the landslide motion. The conclusion of the thesis is that scenario 2 supports reasonably well the hypothesis that the Vavilov seamount experienced a collapse of the western flank, that the collapsed material filled the western abyssal plane causing an average decrease of the sea floor depth by hundreds of meters, that most of the material accumulated not too far from the feet of the Vavilov’s seamount, which is consistent with the available seismic lines.
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Khan, Muhammad Abbas. "Detection of collapses and communicating with inaccessible areas in underground coal mines using WSN". Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2016. https://ro.ecu.edu.au/theses/1782.

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Wireless sensor networks (WSN) are used in underground mines to monitor concentration of gases, temperature, and humidity. A WSN deployed in underground mines can also be used for localisation of miners and for detecting collapses. Underground coal mines consist of long and narrow tunnels, several hundred metres beneath the surface of earth. These tunnels can be several kilometres long, with the width and height of these tunnels being no more than a few metres. A WSN in underground coal mine is an example of a chain type wireless sensor network (CWSN). CWSNs are special types of WSNs in which sensor nodes are placed along an elongated geographical area with the nodes forming a chain topology. In CWSNs, their shape dictates network design. Unlike other large scale WSN, there is only one path for data transfer in CWSNs. Hence the probability of network getting broken in disjoint sections, due to node failures, is much higher in CWSNs compared to other large scale WSNs. Disjoint sections are two sections of the same network which are out of the communication range of each other. When the network is broken into two or more disjoint sections, the sink node loses connectivity with parts of the network and hence some areas are left unmonitored despite having functional sensor nodes. In the first contribution chapter of this thesis, we design a distributed connectivity restoration algorithm for generic chain-type wireless sensor networks. We usemovable relay nodes to restore connectivity in the network. Our algorithm strivesto move a minimum number of relay nodes while only requiring local knowledge ofthe network. In the second contribution chapter, we consider the scenario of collapses occurring in underground coal mines. We design an algorithm for detecting collapses in chapter four. A collapse may leave parts of the mine inaccessible and unmonitored. A collapse will also break WSN into two or more disjoint sections which are physically separated by the collapse consisting of soil and rock. We investigate the propagation characteristics of EM waves through soil and rock. We determine the factors on which communication range of EM waves through soil depends on. We propose special movable relay nodes which use low frequency and high power transmitters to communicate through a collapsed area of the mine, restoring connectivity in the WSN. We design an algorithm to restore connectivity through collapsed areas of the underground mine tunnels using these special movable relay nodes. Communicating with inaccessible area of the mine will help locate miners which may be trapped in that section and will enable the network to monitor the inaccessible area of the mine.
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Alston, Sylvia, i n/a. "Where meaning collapses: a creative exploration of the role of humour and laughter in trauma". University of Canberra. Professional Communication, 2009. http://erl.canberra.edu.au./public/adt-AUC20091215.114305.

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The thesis consists of a full-length novel and an exegesis that examines the ways in which humour can be used to restore the symbolic order and serve as a means of regaining control, thus allowing those involved in the most disturbing, painful and challenging situations to feel less powerless. The research component of the thesis involved critical reading, fieldwork, observations, and personal interviews. The texts examined include works by Michael Billig, Henri Bergson and Julia Kristeva, in particular her reference to the act of laughing at the abject as a kind of horrified 'apocalyptic laughter', a compulsion to confront that which repels (Kristeva 1982, pp. 204-206). As part of the fieldwork, I completed training to become a Laughter Club leader. Laughter Clubs are based on the notion that laughter, even fake laughter, is beneficial. This concept is explored in more detail in the exegesis. The fieldwork also included training in laughter-generating activities for students and staff at two local primary schools. The observational component, which involved the Australian War Memorial, the 'Reveries: Photography and Mortality' exhibition, Norwood Crematorium and the children's garden and babies' rose garden at the Gungahlin cemetery, enabled me to examine images and memories of death as well as the responses of other visitors. The final component of my research involved personal interviews. The participants in these interviews were drawn from a diverse range of fields including: volunteers at a local hospice, hospital clowns, general practitioners, cancer survivors and their carers, a psychiatrist, nurses, a paramedic, a police officer, a hospital teacher and bereaved parents. The findings from this research provided the framework for the creative piece, a novel set in present-day Canberra. The story begins one autumn evening when thirteen-year-old Sam is found unconscious and bleeding from a head wound. By the time Maggie, Sam's widowed mother, arrives at the hospital, Sam has regained consciousness. His x-rays show a large mass in his brain and he is kept in for further tests. The results confirm that Sam has an inoperable tumour. Maggie and Sam rely on humour in their interactions both with each other and with other people as a means of maintaining that 'baseline of social control' (Kristeva 1982, p. 99), staying on the edge of what Kristeva refers to as the place 'where meaning collapses' (p. 2). Humour is their anchor, enabling them to maintain a grip on their new normality. And, as if having a dying child isn't enough to cope with, Maggie is being pursued by a handsome and slightly younger man. Both the findings in my exegesis, and the creative work they led to, suggest that although there has been an enormous amount of research undertaken over the previous thirty or so years, there is no conclusive proof that humour can be closely correlated with health. At best, humour can provide a means of controlling that which would otherwise be outside our control.
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Hoyte, Catherine, i n/a. "An Australian Mirage". Griffith University. School of Arts, Media and Culture, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040719.103628.

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This thesis contains a detailed academic analysis of the complete rise and fall of Christopher Skase and his Qintex group mirage. It uses David Harvey's 'Condition of Postmodernity' to locate the collapse within the Australian political economic context of the period (1974-1989). It does so in order to answer questions about why and how the mirage developed, why and how it failed, and why Skase became the scapegoat for the Australian corporate excesses of the 1980s. I take a multi-disciplinary approach and consider corporate collapse, corporate regulation and the role of accounting, and corporate deviance.
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Senac, Geoffrey. "Automatic load shedding scheme and the integration of new capacitors’ controller in the South-West region of France to mitigate large scale voltage collapses". Thesis, KTH, Elektriska energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-153666.

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Since the modern world is totally dependent on electricity, it is necessary to ensure that electrical power is generated and transmitted to end users with minimum interruptions. Given the importance of electricity for the operation of our society, it is really important to fill continuously good safety conditions. This policy must handle two major areas: reducing the risk of occurrence of a crisis and its management if a very constraining disturbance happens. This master’s thesis is mainly focused on this last point. With the continuous increasing of consumption and the high investment costs, it becomes more complicated to ensure good safety margins, since the network is exploited closer to its limits. A recent study demonstrates that the South-West region of France was prone to voltage collapses after very severe faults and as a result the need of an under-voltage load shedding in this region was evokated. In parallel, to ensure the voltage stability, RTE (Réseau de Transport d’Electricité - Electricity Transmission Network) has invested also in equipments such as capacitors and static reactive power compensators. With newly installation of compensation means on the network, the necessity to develop a new device called SMACC (Système avancé pour le contrôle de lacompensation - Advanced system for the control of the compensation) capable of handling more efficiently the control of these batteries of capacitors has been highlighted. Ultimately the thesis focuses also on the new HVDC (High-voltage direct current) line between France and Spain. This line is a key for long-term voltage stability study, since itincreases the exchange capacity between France and Spain, and has the ability to provide or absorb reactive power to the network.
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Ånäs, Kristoffer. "The Significance of Giant Flank Collapses on Magma Ascent in the NE Rift Zone of Tenerife, Canary Islands: A Structural Modelling and Diffusion Approach". Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-438578.

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On the volcanic ocean island Tenerife in the Canary archipelago, several giant flank collapses haveoccurred over the last one million years. The link between the lateral collapses and the resultingvolcanism in the rift zones is not fully understood and was investigated within the framework of thisproject. A field survey along the north eastern rift zone on Tenerife was performed, where dyke intrusionstructural data was collected to analyse the exact distribution of dykes in the area. To determine themagma ascent rate, diffusion analysis of major elements in olivine crystals was conducted incollaboration with ETH Zürich. Additionally, analogue gelatine model experiments were performed toimprove the understanding of the processes that reconfigure linear rift zones to triaxial or multiaxial riftzones. Injections of fluid into the gelatine ridges produced fractures which mainly were linear andfollowed the along strike direction. Position A’ in the centre of the unstable section, produced the mostdiverse injection patterns and had a roughly 30 % higher acceleration compared to position A, positionedat the border of the unstable section. From the results of the diffusion modelling of Mg in olivinephenocrysts an ascent rate of the magma was calculated to an average ascent velocity of 10.4–14.0 km/h.This is extremely fast and suggests that the Orotava collapse is strongly connected to the formation ofankaramite dykes in the area as a result of sudden decrease in the lithostatic pressure.
På vulkanön Teneriffa i den kanariska övärlden har flera jättelika skred skett. Kopplingen mellan dessaskred och vulkanismen i sprickzonerna på ön har undersökts inom ramen för detta arbete. Enfältundersökning genomfördes längs den nordöstra sprickzonen på Teneriffa, där data ommagmagångarnas orientering och läge insamlades. För att bestämma hur snabbt magman steg till ytan,genomfördes diffusionsanalys av Mg i olivinkristaller från ankaramitgångar i samarbete med ETH iZürich. Utöver det utfördes även experiment med analoga gelatinmodeller för att förbättra förståelsenför de processer som förändrar linjära riftzoner till treaxliga eller fleraxliga riftzoner. Injiceringen avvätskan i gelatinmodellerna producerade sprickor som i huvudsak var linjära och följde strykriktningenpå riftzonen. Position A’, i mitten av den instabila sektorn i modellen gav högst variation avinjiceringarna och hade omkring 30 % högre acceleration jämfört med position A placerad i kanten avden instabila sektorn. Baserat på resultatet av diffusionsmodelleringen kunde en uppstigningshastighetför magman beräknas till en medelhastighet på 10,4–14,0 km/h. Detta är extremt snabbt och visar attkollapsen av Orotava är starkt kopplad till bildningen av ankaramitgångar i området som ett resultat aven plötslig minskning av det litostatiska trycket.
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Clowney, Patrick. "Colossal Collapses| An Analysis of 11 Department of Defense Acquisition Program Management Factors that Influence Department of Defense Acquisition Program Termination Using Relative Importance Weight and Chi-squared Distribution". Thesis, The George Washington University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10150142.

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The United States Department of Defense (DoD) loses billions of dollars annually on cancelled or failed acquisition programs. Several DoD acquisition studies, Office of Management and Budget Studies, Government Accountability Office Reports, as well as other studies highlight the disturbing fact, of a plethora of programs that fail to meet full operational requirement capabilities, and therefore, are eventually cancelled. In these cases, the DoD loses billions of investment dollars without any return. Scholars, program managers, and systems engineers posit that there are a host of factors that influence whether a program is cancelled or allowed to continue. They include, but are not limited to political pressures, cost overruns, schedule overruns, and performance shortfalls.

The research here aims to add to the body of knowledge of systems engineering, program management, and the factors that influence acquisition program terminations within the United States Department of Defense (DoD). Specifically, this research surveyed the United States DoD acquisition program managers, defense industry program managers, and defense industry consultants, to evaluate and analyze the key program factors that influence DoD acquisition program terminations. The research also conducted a comparison of different attributes that would lead to project failure amongst various groups. This research used relatively important weight calculations and a chi-squared distribution analysis in order to compare the differences between DoD acquisition program managers, defense industry program managers, and defense industry consultants, with regards to the factors that lead to DoD acquisition program terminations. This research aims to further answer several interrelated research questions, in order to identify the factors that have the greatest influence on program and project cancellation from the expert’s perspective, and capture any significant differences between DoD program managers, DoD industry personnel, and DoD consultants. The research questions include the following:

1) Are there any statistically significant differences between what DoD program managers, DoD industry personnel, and DoD consultants personnel think influence program cancellation? 2) Are there statistically significant differences of the various DoD acquisition program factors between what DoD program managers, DoD industry personnel, and DoD consultants personnel think influence program cancellation?

An exhaustive literature review identified 11 critical factors that were associated with program management for examination. For this study, the examination and methodology used were the Relative Importance Weight technique, to analyze the attributes and factors. RIW methodology consisted of conducting a survey to identify and evaluate the relative importance of the signi?cant factors influencing program termination. Respondents of this survey included the following groups: 1) DoD program and project managers, 2) DoD Industry personnel, and 3) DoD consultants. The outcomes of this research serve three primary purposes: 1) identify the Relative Importance Weight of DoD acquisition program factors that influence program termination, 2) fulfill a system’s engineering and program management’s knowledge gap, by understanding and identifying the most critical factors within the unique DoD acquisition program management system, and 3) serve as a spring board for future research for DoD program management. The results of this research indicate that a statistically significant difference does not exist between the three groups with relative importance of 11 program management factors.

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Książki na temat "Collapses"

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Kourouklis, Harris. Contagious currency collapses. [s.l.]: typescript, 1997.

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Examining bridge collapses. Minneapolis, MN: Clara House Books, 2015.

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Yan rong ta xian ji li ji qi yu ce yu ping jia yan jiu. Beijing: Di zhi chu ban she, 2006.

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Lei, Mingtang, Wanfang Zhou, Xiaozhen Jiang, Jianling Dai i Meng Yan. Atlas of Karst Collapses. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92912-1.

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Internet collapses and other InfoWorld punditry. Foster City, CA: IDG Books Worldwide, 2000.

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Diamond, Jared M. Lessons from environmental collapses of past societies. Washington, DC: National Council for Science and the Environment, 2004.

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The bold riders: Behind Australia's corporate collapses. St. Leonards, NSW, Australia: Allen & Unwin, 1994.

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Sykes, Trevor. The bold riders: Behind Australia's corporate collapses. Wyd. 2. St. Leonards, NSW, Australia: Allen & Unwin, 1996.

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Lindberg, Hans. Exchange rates: Target zones, interventions and regime collapses. Stockholm: Stockholm University, Dept. of Economics, 1994.

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A nation collapses: The Italian surrender of September 1943. Cambridge: Cambridge University Press, 2000.

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Części książek na temat "Collapses"

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Kershnar, Stephen. "Animals". W Desert Collapses, 137–49. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-12.

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Kershnar, Stephen. "Conclusion". W Desert Collapses, 201–6. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-17.

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Kershnar, Stephen. "Ground". W Desert Collapses, 27–39. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-5.

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Kershnar, Stephen. "Geometry". W Desert Collapses, 81–107. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-9.

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Kershnar, Stephen. "Desert-Literature Failures". W Desert Collapses, 177–97. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-15.

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Kershnar, Stephen. "Contribution". W Desert Collapses, 150–74. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-13.

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Kershnar, Stephen. "Introduction". W Desert Collapses, 1–8. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-1.

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Kershnar, Stephen. "Responsibility". W Desert Collapses, 67–77. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-7.

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Kershnar, Stephen. "Mathematics". W Desert Collapses, 108–34. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-10.

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Kershnar, Stephen. "Circularity". W Desert Collapses, 40–66. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003164111-6.

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Streszczenia konferencji na temat "Collapses"

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Kadin, J. "The polynomial time hierarchy collapses if the Boolean hierarchy collapses". W [1988] Proceedings. Structure in Complexity Theory Third Annual Conference. IEEE, 1988. http://dx.doi.org/10.1109/sct.1988.5287.

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Lukyanchenko, L. A. "Neutrino from stellar collapses". W SN 1987A, Quark Phase Transition in Compact Objects and Multimessenger Astronomy. Институт ядерных исследования Российской академии наук, 2018. http://dx.doi.org/10.26119/sao.2020.1.52323.

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Bolduc, William T. "When the Roof Collapses". W Structures Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41171(401)159.

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Ogihara, Mitsunori. "The PL hierarchy collapses". W the twenty-eighth annual ACM symposium. New York, New York, USA: ACM Press, 1996. http://dx.doi.org/10.1145/237814.237834.

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Kuznetsov, E. A. "Wave collapses in nonlinear optics". W International Quantum Electronics Conference, 2005. IEEE, 2005. http://dx.doi.org/10.1109/iqec.2005.1561172.

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Hemachandra, L. A. "The strong exponential hierarchy collapses". W the nineteenth annual ACM conference. New York, New York, USA: ACM Press, 1987. http://dx.doi.org/10.1145/28395.28408.

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Lundgren, T. S., i D. D. Joseph. "Symmetric Model of Capillary Collapse and Rupture (Keynote)". W ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37262.

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The breakup of a liquid capillary filament is analyzed as a viscous potential flow near a stagnation point on the centerline of the filament towards which the surface collapses under the action of surface tension forces. The analysis given her is restricted to cases in which the neckdown is symmetric around the stagnation point. We find that the neck is of parabolic shape and its radius collapses to zero in a finite time; the curvature at the throat tends to zero much faster than the radius, leading ultimately to a microthread of nearly uniform radius. During the collapse the tensile stress due to viscosity increases in value until at a certain finite radius, which is about 1.5 microns for water in air, the stress in the throat passes into tension, presumably inducing cavitation there.
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OHORI, TOSHIO. "WHEN RECURSION COLLAPSES: EVIDENCE FROM DISCOURSE INTERACTION". W Proceedings of the 9th International Conference (EVOLANG9). WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814401500_0037.

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Peraza, David B. "Snow-Related Roof Collapses—Several Case Studies". W Second Forensic Engineering Congress. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40482(280)61.

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YAMADA, YUTA, i HISA-AKI SHINKAI. "NUMERICAL STUDY OF FIVE-DIMENSIONAL GRAVITATIONAL COLLAPSES". W Proceedings of the MG13 Meeting on General Relativity. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814623995_0089.

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Raporty organizacyjne na temat "Collapses"

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Meneses, Juan Francisco, i José Luis Saboin. Growth Recoveries (from Collapses). Inter-American Development Bank, lipiec 2021. http://dx.doi.org/10.18235/0003419.

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This paper analyzes the behavior of a long list of economic variables during episodes of recovery from an economic collapse. A set of stylized facts is proposed so as to depict what in this work is called \saygrowth recoveries. Through different estimation techniques, it is inferred under which conditions and policies the likelihood of experiencing a growth recovery increases. The results of the paper indicate that collapses tend to occur in countries with high dependence on natural resource rents, macroeconomic mismanagement, low levels of democratic accountability and rule of law and high levels of conflict. Recoveries, on the other hand, tend to be longer than collapses and are more likely to occur in contexts of: improved external conditions, less natural resource rents, balanced fiscal accounts, where the exchange rate corrects but within a more fixed exchange rate regime and a more restricted financial account, and where there are: rebounds in private consumption, increases in international trade and improvements on property rights.
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Fishman, Michael, i Jonathan Parker. Valuation, Adverse Selection, and Market Collapses. Cambridge, MA: National Bureau of Economic Research, wrzesień 2012. http://dx.doi.org/10.3386/w18358.

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Chari, V. V., Ali Shourideh i Ariel Zetlin-Jones. Adverse Selection, Reputation and Sudden Collapses in Secondary Loan Markets. Cambridge, MA: National Bureau of Economic Research, czerwiec 2010. http://dx.doi.org/10.3386/w16080.

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O'Rourke, Kevin Hjortshøj. Two Great Trade Collapses: The Interwar Period & Great Recession Compared. Cambridge, MA: National Bureau of Economic Research, wrzesień 2017. http://dx.doi.org/10.3386/w23825.

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Rodrik, Dani. Where Did All The Growth Go? External Shocks, Social Conflict, and Growth Collapses. Cambridge, MA: National Bureau of Economic Research, styczeń 1998. http://dx.doi.org/10.3386/w6350.

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Ryoo, Moo B. The ROK Army's Role When North Korea Collapses Without a War with the ROK. Fort Belvoir, VA: Defense Technical Information Center, luty 2001. http://dx.doi.org/10.21236/ada395665.

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Kim, Olivia, Jonathan Parker i Antoinette Schoar. Revenue Collapses and the Consumption of Small Business Owners in the Early Stages of the COVID-19 Pandemic. Cambridge, MA: National Bureau of Economic Research, listopad 2020. http://dx.doi.org/10.3386/w28151.

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Maldonado, Leonardo, i Víctor Olivo. Is Venezuela Still an Upper-Middle-Income Country? Estimating the GNI per Capita for 2015–2021. Inter-American Development Bank, grudzień 2022. http://dx.doi.org/10.18235/0004612.

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In the 2022 World Bank (WB) country classifications by income level, Venezuela is classified as an upper-middle-income country. Due to the lack of reliable official economic information from the Venezuelan regime, the WB ranked the country using its gross national income (GNI) of 2013. However, after 2013 Venezuela started to experience one of the largest economic collapses observed in Latin American history. We use three different approaches (the Atlas method, extrapolation, and an adjusted deflator) to obtain consistent and robust estimates of the GNI per capita for Venezuela up to 2021. Our findings reveal that Venezuela has been a lower-middle-income country since 2018 and suggest a 2021 GNI per capita of US$ 1,826 using the Atlas method, US$ 2,070 applying an extrapolation technique, and US$ 2,079 following an adjusted deflator. These results are substantially lower than the US$ 11,970 and US$ 13,080 reported by the WB for 2013 and 2014, respectively. A reconsideration of Venezuela's WB income-level classification could facilitate access to concessional conditions to internationally supported mechanisms.
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Stroup, David W., Daniel Madrzykowski, William D. Walton i William Twilley. Structural collapse fire tests:. Gaithersburg, MD: National Institute of Standards and Technology, 2003. http://dx.doi.org/10.6028/nist.ir.6959.

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Stroup, David W., Nelson P. Bryner, Jack LeeJay McElroy, Gary Roadarmel i William H. Twilley. Structural collapse fire tests:. Gaithersburg, MD: National Institute of Standards and Technology, 2004. http://dx.doi.org/10.6028/nist.ir.7094.

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