Copyright (c) 2009 University of Massachusetts Amherst All rights reserved. http://scholarworks.umass.edu Recent documents in ScholarWorks@UMass Amherst en-us Sat, 07 Nov 2009 05:53:16 PST 3600 http://scholarworks.umass.edu/oa_week/5 http://scholarworks.umass.edu/oa_week/5 Thu, 05 Nov 2009 09:24:19 PST http://scholarworks.umass.edu/oa_week/4 http://scholarworks.umass.edu/oa_week/4 Thu, 05 Nov 2009 07:49:50 PST http://scholarworks.umass.edu/oa_week/3 http://scholarworks.umass.edu/oa_week/3 Tue, 03 Nov 2009 11:09:19 PST http://scholarworks.umass.edu/oa_week/2 http://scholarworks.umass.edu/oa_week/2 Tue, 03 Nov 2009 11:09:15 PST This is a picture of "Copyright Issues for Faculty", one of event of Open Access Week at UMass Amherst. http://scholarworks.umass.edu/oa_week/1 http://scholarworks.umass.edu/oa_week/1 Tue, 03 Nov 2009 11:09:06 PST This is a picture of "Copyright Issues for Faculty", one of event of Open Access Week at UMass Amherst. http://scholarworks.umass.edu/tei/2 http://scholarworks.umass.edu/tei/2 Thu, 29 Oct 2009 15:19:02 PDT http://scholarworks.umass.edu/livingroutes_stuprojects/1 http://scholarworks.umass.edu/livingroutes_stuprojects/1 Fri, 23 Oct 2009 11:07:25 PDT Living Routes is a Non Governmental organization based in Amherst, MA that sends students overseas for semester long courses affiliated by the University of Massachusetts, Amherst. The courses comprise of sustainable living practices, ecological studies and a lifestyle that supports nature. These sites are primarily eco-villages spread throughout the world. In some of them Living Routes has its own campus and in others they function from temporary guest houses and hired accommodations.This Master's study project worked to develop the spatial design for a campus located in Auroville, India for Living Routes. As the course is more established in Auroville, India; Living Routes feels the need to establish a new base station (campus). This campus would serve as a holistic site with classrooms, accommodations and outdoor activity area. The campus would also serve as an example of an ideal campus setting for running such courses. The master's project thus looks into the possibility of proposing a campus plan that could be seen as a live laboratory of systems and practices that the organization preaches. http://scholarworks.umass.edu/libcareer/2009/program/1 http://scholarworks.umass.edu/libcareer/2009/program/1 Wed, 21 Oct 2009 18:00:00 PDT The program will include: Jay Schafer - Director of Libraries, University of Massachusetts Amherst Gale Eaton - Director, University of Rhode Island Graduate School of Library and Information Studies Terry Plum - Assistant Dean, Simmons Graduate School of Library and Information Science Lauri Kolakoski Fennell - Outreach and Education Coordinator, National Network of Libraries of Medicine, New England Region Steven Folsom - Metadata Librarian, Image Collection Library, University of Massachusetts Amherst Beth Girshman - Adult Services Librarian, Jones Library, Amherst, MA Beatrice Pulliam - Library Commons Librarian for Technology and Access, Providence College Georgina Trebbe - Wilbraham Middle School Information Specialist, Wilbraham, MA Annette Vadnais http://scholarworks.umass.edu/open_access_dissertations/71 http://scholarworks.umass.edu/open_access_dissertations/71 Fri, 16 Oct 2009 07:08:11 PDT Let K be an imaginary quadratic field with class number one and let [Special characters omitted.] be a degree one prime ideal of norm p not dividing 6 d K . In this thesis we generalize an algorithm of Schoof to compute the class number of ray class fields [Special characters omitted.] heuristically. We achieve this by using elliptic units analytically constructed by Stark and the Galois action on them given by Shimura's reciprocity law. We have discovered a very interesting phenomena where p divides the class number of [Special characters omitted.] . This is a counterexample to the elliptic analogue of a well-known conjecture, namely the Vandiver's conjecture. http://scholarworks.umass.edu/open_access_dissertations/70 http://scholarworks.umass.edu/open_access_dissertations/70 Fri, 16 Oct 2009 07:06:37 PDT Bolometers are the most sensitive detectors for measuring millimeter and submillimeter wavelength astrophysical signals. Cameras comprised of arrays of bolometers have already made significant contributions to the field of astronomy. A challenge for bolometer cameras is obtaining observations at multiple wavelengths. Traditionally, observing in multiple bands requires a partial disassembly of the instrument to replace bandpass filters, a task which prevents immediate spectral interrogation of a source. More complex cameras have been constructed to observe in several bands using beam splitters and dichroic filters, but the added complexity leads to physically larger instruments with reduced efficiencies. The SPEctral Energy Distribution camera (SPEED) is a new type of bolometer camera designed to efficiently observe in multiple wavebands without the need for excess bandpass filters and beam splitters.SPEED is a ground-based millimeter-wave bolometer camera designed to observe at 2.1, 1.3, 1.1, and 0.85 mm simultaneously. SPEED makes use of a new type of bolometer, the frequency selective bolometer (FSB), to observe all of the wavebands within each of the camera's four pixels. FSBs incorporate frequency selective dipole surfaces as absorbing elements allowing each detector to absorb a single, narrow band of radiation and pass all other radiation with low loss. Each FSB also contains a superconducting transition-edge sensor (TES) that acts as a sensitive thermistor for measuring the temperature of the FSB.This thesis describes the development of the SPEED camera and FSB detectors. The design of the detectors used in the instrument is described as well as the the general optical performance of frequency selective dipole surfaces. Laboratory results of both the optical and thermal properties of millimeter-wave FSBs are also presented. The SPEED instrument and its components are highlighted and the optical design of the optics which couple SPEED to the Heinrich Hertz Telescope is given. This thesis concludes with an introduction to the jiggle mapping data analysis of bolometer instruments like SPEED.