4,918 research outputs found

    FDTD/K-DWM simulation of 3D room acoustics on general purpose graphics hardware using compute unified device architecture (CUDA)

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    The growing demand for reliable prediction of sound fields in rooms have resulted in adaptation of various approaches for physical modeling, including the Finite Difference Time Domain (FDTD) and the Digital Waveguide Mesh (DWM). Whilst considered versatile and attractive methods, they suffer from dispersion errors that increase with frequency and vary with direction of propagation, thus imposing a high frequency calculation limit. Attempts have been made to reduce such errors by considering different mesh topologies, by spatial interpolation, or by simply oversampling the grid. As the latter approach is computationally expensive, its application to three-dimensional problems has often been avoided. In this paper, we propose an implementation of the FDTD on general purpose graphics hardware, allowing for high sampling rates whilst maintaining reasonable calculation times. Dispersion errors are consequently reduced and the high frequency limit is increased. A range of graphics processors are evaluated and compared with traditional CPUs in terms of accuracy, calculation time and memory requirements

    The Native Plants of Ohio

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    PDF pages: 5

    Measuring Brief (U.S. Fish & Wildlife Service)

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    A method for solving the nonsimilar laminar boundary-layer equations including foreign gas injection

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    Solving nonsimilar laminar boundary layer equations including foreign gas injectio

    On the dynamics of capillaries and the existence of plasma flow in the pericapillary lymph space

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    Hydrodynamic analysis of dynamic blood plasma flow in capillaries and lymph annulu

    Choreographic Space

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    This thesis, Choreographic Space, and accompanying exhibit is an arrangement of contemporary work being done in the cross-over between movement, drawing, sound and architecture. The thesis develops a lineage of choreographic thinking through a fissure in the classification of a dance as necessarily the body in motion. Through the link of the “choreographic object,” Choreographic Space asks how an interdisciplinary exploration of the principles of movement can reveal novel ways to think about the body in space

    Nietzsche’s “Toys of Desperation” or \u3ci\u3eThe Birth of Tragedy\u3c/i\u3e as dramaturgical alternative

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    This thesis provides a close reading of Friedrich Nietzsche’s The Birth of Tragedy, with particular attention paid to his use of the “principle of individuation.” The major question this thesis confronts is whether Nietzsche’s text might provide illuminative insights for the study of contemporary dramatic literature. Another question addressed by the thesis is whether Nietzsche’s text may offer dramaturgical alternatives to the strictures of naturalism. These questions are considered in relation to the play Dead Man’s Cell Phone by Sarah Ruhl. In considering how Ruhl’s play might be reflective of Nietzsche’s own ideological and artistic investments, the author found that a deeper philosophical engagement with Nietzsche’s notion of the tragic helped to suggest new avenues for the study and the production of current dramatic literature

    The Met and Unmet Needs of Families of Patients in the ICU and Implications for Social Work Practice

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    This qualitative research study seeks an understanding of the experience and needs of family members of patients in an intensive care unit (ICU) at a large, metropolitan hospital. This study utilizes a self-developed, semi-structured interview, transitioning the findings of the The Critical Care Family Needs Inventory (CCFNI) (Molter, & Leske, 1983) into open-ended interview questions. The interviews query participants about their needs related to their family member’s stay in the ICU, their interactions with the health care team and any recommendations they wished to offer to family members of patients in the ICU and to the health care team. The twelve interviews were coded and the findings are reported using “issue focused” analysis as described by Weiss (1994). The interviews yield multiple needs of family members of patients in the ICU including the need for: communication, information, visitation, vigilance, assurance, and “realistic hope.” The interviews also reveal that the advice offered by the participants to both future family members of patients in the ICU and to the health care team caring for patients and families mirror their own indicated needs. Discrepancies in the findings, as well as in the “advice” offered, suggests additional research in this area is warranted. Additional research investigating interventions designed to meet the families’ needs and the role of social work in the ICU in meeting these needs is also indicated
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