• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 130
  • 29
  • 15
  • 11
  • 11
  • 4
  • 4
  • 4
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • Tagged with
  • 265
  • 62
  • 60
  • 53
  • 46
  • 31
  • 30
  • 29
  • 28
  • 25
  • 25
  • 21
  • 20
  • 19
  • 18
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

An investigation of the fine-pointing control system of a soft-gimbaled orbiting telescope /

Morrell, Frederick R. January 1970 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--University of Virginia, March 1968. / "June 1970." Submitted in partial fulfillment of the requirements for the degree Master of Electrical Engineering, University of Virginia, Charlottesville, Virginia, March 1968.--Report documentation page. "NASA TN D-5829." "L-6988." Includes bibliographical references (p. 17). Also available online in PDF from NASA Technical Reports Server Web site.
102

The AzTEC millimeter-wave camera design, integration, performance, and the characterization of the (sub-)millimeter galaxy population /

Austermann, Jason Edward, January 2009 (has links)
Thesis (Ph. D.)--University of Massachusetts Amherst, 2009. / Open access. Includes bibliographical references (p. 179-184). Print copy also available.
103

Probing global star and galaxy formation using deep multi-wavelength surveys

Capak, Peter L. January 2004 (has links)
Thesis (Ph. D.)--University of Hawaii at Manoa, 2004. / Includes bibliographical references (leaves 180-192).
104

Scientific controversy and the new astronomy : the intellectural and social contexts of the Hevelius-Hooke dispute /

Saridakis, Voula. January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 126-132). Also available via the Internet.
105

In search of red dwarf stars application of three-color photometric techniques /

Mason, Justin R. January 2009 (has links)
Thesis (M.S.)--Ball State University, 2009. / Title from PDF t.p. (viewed on June 07, 2010). Includes bibliographical references (p. [46]).
106

Infrared photometry of M stars

Kovar, Robert Paul, January 1964 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 73-74).
107

Far-infrared spectrophotometry of oxygen-rich and S-type stars /

Glaccum, William Joseph. January 1999 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Astronomy and Astrophysics, August 1999. / Includes bibliographical references. Also available on the Internet.
108

Survey for transiting extrasolar planets in stellar systems stellar and planetary content of the Open Cluster NGC 1245 /

Burke, Christopher J., January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 137-142).
109

A digital data acquisition system for astronomical spectra

Isherwood, Barclay Clifford January 1971 (has links)
Certain restrictions associated with conventional photographic techniques have led to the use of a low light level television tube (isocon tube) as an alternative detector for astronomical spectra. An on-line digital data acquisition system has been developed to process and analyze data from the television camera. The digital system consists of a high speed analog-to-digital converter, a digital computer with magnetic tape transport and oscilloscope display, and some digital control logic. Spectra displayed on the photocathode of the isocon tube are digitized by the A/D converter and stored on magnetic tape via the computer processor. Data acquisition time for one frame of data (1360 samples) is less than 1.5 seconds. Results obtained with the system indicate that it performs as initially intended and is able to resolve spectral features of the order of 0.1 mm. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate
110

Investigating Pre-service Natural Science Teachers’ perceptions of earth in space through spatial modelling and argumentation

Mushaikwa, Ngonidzashe January 2014 (has links)
Magister Educationis - MEd / This study involves a group of pre-service teachers who are specialising in Science and Mathematics education at a university in the Western Cape province of South Africa. The aim of the study was to investigate perceptions about the earth in space held by the pre-service natural science teachers. A related aim was to create awareness among the prospective teachers about various views that people hold about the earth as against the scientifically valid view (Govender, 2009, Plummer & Zahm, 2010, Schneps & Sadler, 1989). To determine and improve the prospective teachers’ perceptions and awareness about the significance of the earth in space the study adopted the dialogical argumentation model (DAIM) and spatial modelling as a theoretical framework (Ogunniyi, 2013). Further, the study used pre- and post-test data based on the responses of the pre-service teachers to questionnaires, focus group interviews and reflective diaries. The data set was analysed using a mixed methods approach (qualitative and quantitative). Results from the study show that most the pre-service teachers involved in the study hold both scientific and alternative conceptions about the earth in space. However, they seem to suppress the latter because they believe them to be unscientific. In addition they believe that their role is to impart scientific knowledge to learners. As has been revealed in a number of studies, some of the prospective teachers did not have much background in geography.

Page generated in 0.0782 seconds