1,487 research outputs found

    Two dimensional recursive digital filters for near real time image processing

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    A program was designed toward the demonstration of the feasibility of using two dimensional recursive digital filters for subjective image processing applications that require rapid turn around. The concept of the use of a dedicated minicomputer for the processor for this application was demonstrated. The minicomputer used was the HP1000 series E with a RTE 2 disc operating system and 32K words of memory. A Grinnel 256 x 512 x 8 bit display system was used to display the images. Sample images were provided by NASA Goddard on a 800 BPI, 9 track tape. Four 512 x 512 images representing 4 spectral regions of the same scene were provided. These images were filtered with enhancement filters developed during this effort

    The development of two-dimensional object identification techniques

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    This report marks the end of the first year of an anticipated three year effort to study methods for numerically identifying objects according to shape in two dimensions. The method is based upon comparing the unit gradient of an observed object and the unit gradient of a standard object over a specified range of points. The manner in which the gradients are compared forms the basis of a shape recognition scheme, which is then applied to simple closed plane figures. The gradient based method is calibrated by using various distorted objects in comparison with a set of standard reference objects. The use of pattern recognition techniques for computer identification of two-dimensional figures will be investigated during the second and third years of this project

    Using Student and Staff Perceptions to Guide Training and Practice

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    Despite the notable positive outcomes SWPBIS has for students, schools sometimes struggle with effective and successful implementation. SWPBIS is a complex systems change effort which may prove to be overwhelming for some schools to effectively implement without the necessary preliminary supports in place. System change efforts provide an avenue to approach the work of implementing SWPBIS. The present case study examined use of staff and student perceptions of behavior and discipline to design and provide targeted staff training through PLCs. Findings demonstrate some improvements in Tier I SWPBIS implementation. However several barriers were also identified in the course of this work. Using perceptions and beliefs of staff and students to implement positive behavior practices is a complex process and can be influenced by administrator support, district supports, and the priorities and collaboration of a school staff

    A Rudimental Drumming Vocabulary Applied to the Folk Music of Argentina

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    This dissertation examines the methods and approaches used by Argentine percussionist Mr. Sebastian Hoyos to incorporate rudimental drumming into the composition Soy de Salta: Suite para percusión criolla y orquesta. The study demonstrates the steps taken to employ Argentinian folk music content through four folk styles: Baguala, Zamba, Chacarera, and Carnavalito. The bombo legüero, one of Argentina\u27s most well-known and essential folk percussion instruments, plays a supportive and dominant role in Soy de Salta, introducing rudimental components into the music. This original research therefore addresses rudiments, variations of rudiments, and simple and complex writing styles for the snare drum and bombo legüero. It also examines the percussion\u27s typical role in each style by revealing its most well-known patterns and alternatives. Many alternatives include incorporating subtle or drastic changes to the instrument\u27s part, visual enhancements, syncopation, and commonly used rudimental drumming techniques. This research presents a viewpoint of how rudimental drumming coexists with the folk drum and culture of Argentine music

    The Fragmentation of Collective Action in Contemporary China: Micro-regions and Occupation

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    Since the creation of labor markets in China, there has been a rapid increase in collective contentious action, such as striking and protesting, and this has attracted the attention of many scholars. Because the country contains such a myriad of diverse regions, scholars have commonly analyzed Chinese collective action through a “regional” lens. While that approach has been useful, this paper goes further by disaggregating Chinese collective action along two dimensions: by micro-region and by occupational sector. More specifically, this research disaggregates large macro-regions to show diversity at the city-level within regions. It also considers differences in collective action across occupations and industries, such as transportation workers and factory workers in the auto parts, electronics and textiles industries. To illustrate this disaggregated approach, I have constructed a searchable database of collective action in China over the past years, which consists of 94 verified cases of collective action. These cases have demonstrated that the targets of and reasons for collective action among China’s regions have been far less general and uniform than scholars have projected. In disaggregating collective action within many of China’s vast regions and across occupational groups, I have developed a new framework to analyze China’s collective action

    BEACON VOYAGES FOR SERVICE: 2013 Alternative Spring Break Trip to the Pine Ridge Reservation, South Dakota

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    This March, fourteen UMass Boston students traveled to the Pine Ridge Indian Reservation in South Dakota to address the pressing issues of poverty faced by the Oglala Lakota people by assisting in construction efforts such as repairing stairwells, building children’s bunk beds, and installing protective skirting around mobile homes to help increase the overall quality of life on the reservation. In conjunction with the service work, special attention was placed on fostering relationships and participating in a cultural exchange with the Oglala Lakota community that has created awareness about the tribulations faced by the United States of America’s most disadvantaged demographic

    Social Equality and Environmental Education in Brazil

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    Beacon Voyages for Service (BVS) is a program within the Office of Student Leadership and Community Engagement that coordinates Alternative Break programs. BVS Brazil traveled to Porto Alegre. This group of students partnered with “The Brazilian Association of Cultural Exchange (ABIC)” and the Center for Environmental Education to learn about the social problems that affect the citizens of Brazil and tackle issues of waste management. The students work alongside community members in a recycling unit and spend many hours working with local youth

    Building Sustainability in Rural Puerto Rico

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    Beacon Voyages for Service (BVS) is a program within the Office of Student Leadership and Community Engagement that coordinates Alternative Break programs. BVS Puerto Rico traveled to Las Marias, Puerto Rico. This group of students partnered with Plenitud Eco-Educational Initiatives to learn about sustainability through organic farming and permaculture practices in rural areas of Puerto Rico

    Contemporary Seismicity in and Around the Yakima Fold-and-Thrust Belt in Eastern Washington

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    We examined characteristics of routinely cataloged seismicity from 1970 to the present in and around the Yakima fold-and-thrust belt (YFTB) in eastern Washington to determine if the characteristics of contemporary seismicity provide clues about regional-scale active tectonics or about more localized, near-surface processes. We employed new structural and hydrologic models of the Columbia River basalts (CRB) and found that one-third to one-half of the cataloged earthquakes occur within the CRB and that these CRB earthquakes exhibit significantly more clustered, and swarmlike, behavior than those outside. These results and inferences from published studies led us to hypothesize that clustered seismicity is likely associated with hydrologic changes in the CRB, which hosts the regional aquifer system. While some general features of the regional groundwater system support this hypothesis, seismicity patterns and mapped long-term changes in groundwater levels and present-day irrigation neither support nor refute it. Regional tectonic processes and crustal-scale structures likely influence the distribution of earthquakes both outside and within the CRB as well. We based this inference on qualitatively assessed alignments between the dominant northwest trends in the geologic structure and the seismicity generally and between specific faults and characteristics of the 2009 Wooded Island swarm and aseismic slip, which is the only cluster studied in detail and the most vigorous since regional monitoring began.USGS-NAGTGeological Science
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