Tez (Yüksek Lisans) - Süleyman Demirel Üniversitesi, Fen Bilimleri Enstitüsü, Jeofizik Mühendisliği Anabilim Dalı, 2008. / Kaynakça var.

Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 129-142). Also available in print.

Thesis (M.S.)--California Polytechnic State University, 2009. / Mode of access: Internet. Title from PDF title page; viewed on Jan. 11, 2010. Major professor: Daniel C. Jansen. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Civil and Environmental Engineering." "December 2009." Includes bibliographical references (p. 176-180).

Thesis (D. Min.)--Logos Evangelical Seminary, 2002. / Vita. Includes bibliographical references (leaves 256-286).

Thesis (Ph. D.)--Lehigh University, 2003. / In three parts. Includes vita. Includes bibliographical references (leaves 770-775).

The research described in this dissertation undertakes a computational study of wave motion due to ground excitation in layered soil media. Adjustments of soil properties consistent with the level of deformation is applied using an equivalent linear approach. The finite element method provides the basis of the numerical procedure for soil-structure system response calculation in conjunction with a first-order perturbation scheme. Available experimental data are employed for shear-modulus and damping adjustments. The findings of the research are expected to lead to efficient calculation of structural response to earthquake ground motion. / text

This thesis examines the news coverage of the earthquake, tsunami and nuclear crisis that devastated the country of Japan in March 2011 from a comparative standpoint. Drawing on the key concepts in the theory of social constructionism and frame analysis, the series of studies in this thesis comparatively examines how cultures and value systems factored into the process of news production, dissemination and consumption when it comes to the news stories on what the Japanese government officially named the Great East Japan Earthquake. The first section looks at how Japan and its people were portrayed amid disaster relief efforts and analyzes how culture itself has become the topic of discussion and part of reality construction. The second section, on frame analysis, focuses on the workers at the Fukushima Daiichi nuclear power plant, often called the Fukushima 50 by the Western media, and examines the cultural characteristics that contributed to the observable discrepancies in the ways they were represented by the Japanese media and their Western counterparts. The third study aims to shed light on the environment surrounding today’s foreign correspondents and international news reporting in the context of Japan, investigating what factors influence the ways journalist go about reporting and framing their versions of realities. The fourth section attempts to deconstruct the news narratives in terms of risk communication by paying particular attention to how people reacted to the coverage of potential dangers of radiation leaks as well as the tsunami warnings in Tohoku area. In the end, the series of studies described above underlines how cultural factors significantly affected the ways in which the journalists covered Japan in 2011 as well as the ways news audiences understood what was going on. The thesis argues that there are two types of cultural faming that contributed greatly to the social construction of realities in the aftermath of the triple disasters. The first type of cultural framing was observed when reporters consistently made the culture of Japan and its supposedly “unique” values as the main frame of news narratives. It often implied that the Japanese culture was somewhat exotic or alien through foreign eyes. The second type of cultural framing was observed when the cultural dispositions of journalists and audience framed the potential risk such as the incoming tsunami and the vital newsmakers such as workers in Fukushima Daiichi using familiar cultural molds. The finding accentuated the intricacy and precarious nature of “realities” in news reports. The research also indicated that when cultural factors in news process dictate and determine the focal point of reality perception, they tend to bring about racial discussions and stereotypical images in narratives. / published_or_final_version / Sociology / Doctoral / Doctor of Philosophy

Longmen Shan Mountain Belt is a prominent orogeny along the eastern margin of the Tibetan plateau. Its current deformation has significant implications for the Cenozoic tectonics of the Tibetan plateau. The M=8 Wenchuan earthquake substantially ruptured the Longmen Shan mountain in 2008. Numerous tectonics and rheological implications are concluded by this event on crustal dynamics along the eastern margin of the Tibetan plateau. Several high-resolution gravity surveys were conducted before and after the event to investigate the regional isostasy and crustal dynamics. From 2008 to 2011, four gravimetric surveys were carried out along two profiles across southern and northern Longmen Shan from the Sichuan Basin to the Songpan-Graze Terrane. The Bouguer gravity anomalies drop from -162 mGal to -431 mGal in the Aba Basin with a steep gradient of 0.84 mGal/km. There is a significant increase of crustal thickness from 40 km in the Sichuan to more than 60 km in the Tibetan plateau. Negative isostatic anomaly of -30 mGal over 150 km of the Songpan-Graze Terrane infers an over-compensation of excess crustal thickness up to 20 km. Hence, upward isostatic rebound is resulted and coupled with on-going crustal movement. Gravity values change significantly before and after the Wenchuan earthquake, ranging from -1.2 mGal to 0.7 mGal near the epicentral area. Significant thrust slip of 7.5m and normal slip of 4.5 m were simulated along the Beichuan fault and Wenchuan fault by an elastic dislocation theory. The co-existence of thrusting and normal faulting implies both compressional and extensional settings along Longmen Shan. The normal slip corroborates a large-scale crustal extension, lending support to a model with the inflation of lower crustal flow. The two-year post-seismic gravity variations were more than 0.1 mGal near the epicentral area. About 25% of them could be attributed to viscoelastic mantle relaxation. The dynamics topography along the eastern margin of the plateau is proposed to be a consequence of lower crustal flow squeezed by isostatic rebound and topographic load. The strong Yangtze Block is thought to obstruct the crustal flow horizontally and direct it to flow upward beneath Longmen Shan. The steep topography and seismicity along Longmen Shan are then resulted probably from the vertical stress induced in this upward flow. / published_or_final_version / Earth Sciences / Doctoral / Doctor of Philosophy

Induced seismicity is a common phenomenon that occurs as soon as the stress state in the subsurface is externally altered in a way that faults are destabilized. It is especially problematic in stable tectonic regions where the area is not used to earthquakes; the infrastructure is not built to withstand ground movement and thus when the induced seismicity occurs damage can follow. In this thesis, mining-induced seismicity has been studied at the Dannemora mine, located in central Sweden, with the aim to locate the seismicity and gain understanding of its occurrence and behavior. The mining company, Dannemora Mineral AB, provided with blasting locations and times, as well as maps over the mine's orebodies and stopes. Seismic data acquired between 01 July 2014 - 25 March 2015 from 4 temporary seismic stations, deployed in the summer of 2014 surrounding the mine, along with 8 SNSN stations was analyzed. The project encompassed field work and processing of the data, which involved different methods to investigate the characteristics of the mine's seismicity: Statistics were kept to record the activity rate of the seismicity over time; spectral analysis was used to study the frequency content of the seismicity; particle motion plots were constructed to identify body-phases in the seismicity; Local Earthquake Tomography was used to upgrade the velocity model of the mine and to relocate the induced seismicity with more accuracy; cross-correlation was used to find events originating from similar sources; and finally, magnitude analysis was used to compare the different types of seismicity within the mine. Three main types of induced events were observed in the mine: low-frequency events with clear first arrivals, emergent events with long duration, and high-frequency events that could either have clear first arrivals or emergent-like with long durations. Through the analysis of their characteristics, they were linked to different types of rockbursts. The low-frequency events were linked to both reactivation of fault zones triggered by the mine activity, and rockbursts within the mine directly related to the mining. The emergent and high-frequency events were also linked to rockbursts directly related to the mine activity, e.g. ejection of rock from the tunnel walls or arch collapses in stopes.

Kyoto University (京都大学) / 0048 / 新制・課程博士 / 博士(地球環境学) / 甲第19158号 / 地環博第133号 / 新制||地環||27 / 32109 / 京都大学大学院地球環境学舎環境マネジメント専攻 / (主査)教授 ｼｮｳ ﾗｼﾞﾌﾞ, 教授 岡﨑 健二, 教授 清野 純史, 准教授 小林 広英, 准教授 西前 出 / 学位規則第4条第1項該当