A strategy for relocating earthquakes in a catalog is presented. The strategy is based on the argument that the distribution of the earthquake events in a catalog is reasonable a priori information for earthquake relocation in that region. This argument can be implemented using the method of maximum likelihood for arrival time data inversion, where the a priori probability distribution of the event locations is defined as the sum of the probability densities of all events in the catalog. This a priori distribution is then added to the standard misfit criterion in earthquake location to form the likelihood function. The probability density of an event in the catalog is described by a Gaussian probability density. The a priori probability distribution is, therefore, defined as the normalized sum of the Gaussian probability densities of all events in the catalog, excluding the event being relocated. For a linear problem, the likelihood function can be approximated by the joint probability density of the a priori distribution and the distribution of an unconstrained location due to the misfit alone. After relocating the events according to the maximum of the likelihood function, a modified distribution of events is generated. This distribution should be more densely clustered than before in general since the events are moved towards the maximum of the posterior distribution. The a priori distribution is updated and the process is iterated. The strategy is applied to the aftershock sequence in southwest Iceland after a pair of earthquakes on 29th May 2008. The relocated events reveal the fault systems in that area. Three synthetic data sets are used to test the general behaviour of the strategy. It is observed that the synthetic data give significantly different behaviour from the real data.

A museum catalog is a legible, interpretable information system that acts as a rhetorical exposition of the museum’s collection and work. The unity of a collection is of course distinct from that represented in a catalog, and still further from the reader’s experience of it. But the information that comprises such an assemblage of individual records or representations, consistent metadata, support the ability to “read” collections as finite, enclosed, or complete. Here I perform a close reading of the elements and relationships that underpin the Walker Art Center’s online Permanent Collection catalog, an emergent publication funded by The Getty Foundation’s Online Scholarly Catalog Initiative (OSCI). I incorporate multiple layers of interpretation into my reading of the structure and contents of the museum website, drawing on concepts developed in information science and textual studies by Bonnie Mak and Johanna Drucker. My performance of reading of the new catalog helps me begin to address how collectively, online representation in virtual frames, contextualization within a website, searching, and browsing support divergent interpretations of a collection catalogue as a text. I conclude that to engage a catalog at a scholarly level, and to interpret and synthesize meaning of the catalog as a text, the museum must situate its self-representation spatially and temporally. / text

Este trabalho aborda os movimentos do estudo e da pesquisa no campo da Psicologia Social e Institucional enquanto experiência em que vida e pensamento se engendram. A partir de então, construímos a dissertação como se cultivássemos um canteiro de/em obras, no qual lançamos sementes na terra, revolvemos o terreno e trazemos à superfície seus achados. Além disso, acompanhamos os deslocamentos intensivos e extensivos do estudante-pesquisador, sendo este um personagem-conceitual, que busca costurar a trama, alicerçado nos encontros com outros corpos e canteiros, outras imagens que vêm modificar a paisagem, bem como, o olhar de quem as encontra. Portanto, compomos esta dissertação destituídos de mapas ou roteiros pré-estabelecidos, traçando-a por linhas de erro, linhas de vida, de morte, linhas entre linhas, linhas de costura, linhas em notas, em canetas, em livros, linhas móveis. Linhas que se fazem pelos movimentos da escrita e da leitura, uma vez que escrever e ler ultrapassam a normatividade de seu uso para acolher elementos heterogêneos, dissonantes e em composição que agenciam imagens inéditas à pesquisa e ao estudo. Tais imagens – que se assemelham a imagens da busca – ganham um fora, um lugar para habitar provisoriamente, uma vez que intenta-se a produção de um catálogo-profanado de imagens da escrita a contrapelo, onde fragmentos se apresentam e se multiplicam, dando a ver a potência e a vida do estudante-pesquisador. / This work approaches the movements of study and research in the field of Social and Institutional Psychology as an experience in which life and thought are engendered. From then on, we constructed the dissertation as if we were cultivating a construction site, in which we threw seeds on the land, revolved the ground and brought to the surface its findings. In addition, we follow the intensive and extensive movements of the student-researcher, this being a conceptual character, who seeks to sew the plot, based on encounters with other bodies and plats, other images that come to modify the landscape, as well as the look of who finds them. Therefore, we compose this dissertation devoid of pre-established maps or scripts, tracing it by lines of error, death lines, lines between lines, sewing lines, lines in notes, pens, books, moving lines. Lines that are made by the movements of writing and reading, since writing and reading surpass the normativity of its use to receive heterogenous, dissonant elements and in composition that act unpublished images to the research and the study. Such images - which resemble images of search - gain an outside, a place to dwell provisionally, once the attempt is made to produce a catalog-desecrated images of writing against the grain, where fragments appear and multiply, giving to see the power and life of the student-researcher.

abstract: Clarinet multiphonics have become increasingly popular among composers since they were first introduced in the 1950s. However, it is a topic poorly understood by both performers and composers, which sometimes leads to the use of acoustically impossible multiphonics in compositions. Producing multiphonics requires precise manipulations of embouchure force, air pressure, and tongue position. These three factors are invisible to the naked eye during clarinet performance, leading to many conflicting theories about multiphonic production strategies, often based on subjective perception of the performer. This study attempts to observe the latter factor—tongue motion—during multiphonic production in situ using ultrasound. Additionally, a multiphonic catalog containing 604 dyad multiphonics was compiled as part of this study. The author hypothesized that nearly all, if not all, of the multiphonics can be produced using one of four primary production strategies. The four production strategies are: (A) lowering the back of the tongue while sustaining the upper note; (B) raising the back of the tongue while sustaining the upper note; (C) changing the tongue position to that of the lower note while sustaining the upper note; and (D) raising the root of the tongue (a sensation similar to constricting the throat) while sustaining the upper note. To distill production strategies into four primary categories, the author documented his perceived tongue motion over twenty repetitions of playing every multiphonic in the catalog. These perceptions were then confirmed or corrected through ultrasound investigation sessions after every five repetitions. The production strategies detailed in this study are only for finding the correct voicing to produce the multiphonics. The catalog compiled during this study is organized using two different organizational systems: the first uses the traditional method of organizing by pitch; the second uses a fingering-based system to facilitate the ease of finding multiphonics in question, since notated pitches of multiphonics often differ between sources. / Dissertation/Thesis / Doctoral Dissertation Music 2018

Este trabalho aborda os movimentos do estudo e da pesquisa no campo da Psicologia Social e Institucional enquanto experiência em que vida e pensamento se engendram. A partir de então, construímos a dissertação como se cultivássemos um canteiro de/em obras, no qual lançamos sementes na terra, revolvemos o terreno e trazemos à superfície seus achados. Além disso, acompanhamos os deslocamentos intensivos e extensivos do estudante-pesquisador, sendo este um personagem-conceitual, que busca costurar a trama, alicerçado nos encontros com outros corpos e canteiros, outras imagens que vêm modificar a paisagem, bem como, o olhar de quem as encontra. Portanto, compomos esta dissertação destituídos de mapas ou roteiros pré-estabelecidos, traçando-a por linhas de erro, linhas de vida, de morte, linhas entre linhas, linhas de costura, linhas em notas, em canetas, em livros, linhas móveis. Linhas que se fazem pelos movimentos da escrita e da leitura, uma vez que escrever e ler ultrapassam a normatividade de seu uso para acolher elementos heterogêneos, dissonantes e em composição que agenciam imagens inéditas à pesquisa e ao estudo. Tais imagens – que se assemelham a imagens da busca – ganham um fora, um lugar para habitar provisoriamente, uma vez que intenta-se a produção de um catálogo-profanado de imagens da escrita a contrapelo, onde fragmentos se apresentam e se multiplicam, dando a ver a potência e a vida do estudante-pesquisador. / This work approaches the movements of study and research in the field of Social and Institutional Psychology as an experience in which life and thought are engendered. From then on, we constructed the dissertation as if we were cultivating a construction site, in which we threw seeds on the land, revolved the ground and brought to the surface its findings. In addition, we follow the intensive and extensive movements of the student-researcher, this being a conceptual character, who seeks to sew the plot, based on encounters with other bodies and plats, other images that come to modify the landscape, as well as the look of who finds them. Therefore, we compose this dissertation devoid of pre-established maps or scripts, tracing it by lines of error, death lines, lines between lines, sewing lines, lines in notes, pens, books, moving lines. Lines that are made by the movements of writing and reading, since writing and reading surpass the normativity of its use to receive heterogenous, dissonant elements and in composition that act unpublished images to the research and the study. Such images - which resemble images of search - gain an outside, a place to dwell provisionally, once the attempt is made to produce a catalog-desecrated images of writing against the grain, where fragments appear and multiply, giving to see the power and life of the student-researcher.

No description available.

Conferencia realizado del 12 al 14 de setiembre en Lima, Peru del 2012 en el marco del 15º Simposio Internacional de Tesis y Disertaciones Electrónicas (ETD 2012). Evento aupiciado por la Universidad Nacional Mayor de San Marcos (UNMSM) y la Universidad Peruana de Ciencias Aplicadas (UPC). / The NDLTD Union Catalog is an international collection of ETD metadata that is harvested from various institutional, regional and cross-institutional collections. The Union Catalog has grown substantially in the 10 years since its launch and now contains almost 2 million records. However, various issues have surfaced during the maintenance of the Union Catalog and its downstream service providers. For example, at this scale, the well-known best practice of the OAI-PMH to restrict the size of a response to 100 records or 1MB has a severe impact on harvesting time. This paper describes this problem and other issues that are relevant to the Union Catalog and similar projects. For each such issue, solutions are discussed. Together these present a set of guidelines not only for large union catalogues but also for the design of large digital library collections in general.

No description available.

<p>Earth-orbiting space debris poses a severe threat to current and future space missions. To combat the dangers of debris, countries (and companies) perform collision avoidance using catalogs of space objects. Better technology has also led to the detection of more space objects, increasing the amount of data in these catalogs. With this increase in data comes a greater need for a single comprehensive catalog without duplicates, and this work proposes two methods of catalog correlation to address this need. These methods are tested using the publicly available Space-Track (US) and Vimpel (Russian) catalogs. The first method, called direct catalog comparison, directly correlates the Space-Track and Vimpel catalogs to determine the same objects between them. This method is validated using the datefirst.txt file – a file from Vimpel which lists Space-Track and Vimpel object pairs. When correlating the Vimpel objects in the datefirst.txt file to the Space-Track catalog, the direct catalog comparison method produces over 90\% of these pairs. It is also found that the datefirst.txt file pairing for Vimpel 92400 should be NORAD 42075 and not NORAD 41879. The second method, arc correlation, uses optical observations received from the Purdue Optical Ground Station and the German Aerospace Center to correlate optical observations to both of the catalogs. By matching observations to objects in the catalogs, these catalog objects are indirectly correlated to each other. This method is validated using tracking data messages containing observation sets of tasked Space-Track objects in various orbits. For all tasked Space-Track objects, even ones in a cluster, the tracking data messages are appropriately matched to the Space-Track catalog. For the cases where Vimpel objects are associated with these Space-Track objects – as claimed by the datefirst.txt file (except for the case listed above) – the appropriate Vimpel objects are matched to the tracking data messages. When observation sets of unknown objects are tested, the arc correlation method produces distinct and viable candidate matches for both catalogs. Overall, the direct catalog combination and arc correlation methods can be used together to effectively correlate the Space-Track and Vimpel catalogs, aiding the development of a comprehensive catalog of space objects.</p>

京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第20918号 / 理博第4370号 / 新制||理||1627(附属図書館) / 京都大学大学院理学研究科物理学・宇宙物理学専攻 / (主査)准教授 上田 佳宏, 准教授 野上 大作, 教授 太田 耕司 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DFAM