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  • 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.
121

Influence of weather conditions on the propagation of highway noise at sites with barriers

Lin, Kai-Jui. January 2000 (has links)
Thesis (M.S.)--Ohio University, November, 2000. / Title from PDF t.p.
122

Aircraft noise and child blood pressure

Morrell, Stephen L. January 2003 (has links)
Thesis (Ph. D.)--University of Sydney, 2003. / Title from title screen (viewed Apr. 29, 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Public Health, Faculty of Medicine. Includes bibliography. Also available in print form.
123

Sounds of industry : reactions to music and noise in nineteenth-century Manchester : ...on the lips, in the halls , on the streets /

Fay, Poppy. January 2009 (has links)
Thesis (M.Mus. (Musicology)--University of Melbourne, Faculty of Music, 2009. / Typescript. Includes bibliographical references.
124

Background and significance sections of a research proposal entitled "A prospective study of noise effects on cardiovascular and stress-related illness" submitted to General Motors : a report submitted in partial fulfillment ... for the degree of Master of Science, Community Health Nursing ... /

Burek, Karen. January 1996 (has links)
Thesis (M.S.)--University of Michigan, 1996. / Includes bibliographical references.
125

A study of the Hong Kong government's policy on noise mitigation for public roads in the 1990's /

Chen, Lan, Wilson. January 1997 (has links)
Thesis (M.P.A.)--University of Hong Kong, 1997. / Includes bibliographical references (leaf 124-128).
126

A study of the Hong Kong government's policy on noise mitigation for public roads in the 1990's

Chen, Lan, Wilson. January 1997 (has links)
Thesis (M.P.A.)--University of Hong Kong, 1997. / Includes bibliographical references (leaves 124-128). Also available in print.
127

Background and significance sections of a research proposal entitled "A prospective study of noise effects on cardiovascular and stress-related illness" submitted to General Motors : a report submitted in partial fulfillment ... for the degree of Master of Science, Community Health Nursing ... /

Burek, Karen. January 1996 (has links)
Thesis (M.S.)--University of Michigan, 1996. / Includes bibliographical references.
128

Production, characteristics and abatement of noise from pneumatic machines.

Savich, M. (Miron) January 1972 (has links)
No description available.
129

Noise and disturbance caused by vehicles crossing cattle grids: comparison of installations

Watts, Gregory R., Pheasant, Robert J., Khan, Amir 17 September 2016 (has links)
Yes / Cattle grids are used on roads and tracks to prevent grazing animals from leaving an open space without fencing onto a more controlled area where access to the road from surrounded land is more limited. They are widely used in the UK at the entrances to common and moorland areas where animals are free to roam, but also on private drive entrances. Typically, they consist of a series of metal bars across the road that are spaced so that an animal’s legs would fall through the gaps if it attempted to cross. Below the grid is a shallow pit that is intended to further deter livestock from using that particular crossing point. The sound produced as vehicles cross these devices is a characteristic low frequency “brrrr” where the dominant frequencies relates to the bar passage frequency under the tyres. The sound can be disturbing to riders and their horses and walkers and residents living close by as evidenced by press reports and the need to consider noise aspects in planning for new installations. For this reason and due to the lack of available information on the size and nature of the problem measurements and recordings have been made at a number of sites in Yorkshire in the UK. In addition, questionnaire surveys of residents living close by and façade measurements have also been used to gauge impact. Results show that there is a wide variation in the maximum noise level produced by cattle grids of apparently similar design. This can be related to impact noise produced by the movement of all or part of the grid as the frame comes under impulsive loading as the vehicle crosses. It was further established that some residents living close to the cattle grids were disturbed by the noise, and in some cases vibration, and wanted them removed or suitably modified. / The work was funded by the Bradford Centre for Sustainable Environments, University of Bradford.
130

AN INTEGRATED LOW-NOISE BLOCK DOWNCONVERTER

Qun, Wu, Jinghui, Qiu, Shaof an, Deng 11 1900 (has links)
International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / In this paper, a small-sized low-noise integrated block downconverter (LNB) used for Ku-band direct reception from broadcasting satellites (DBS) is proposed. The operating frequency of the LNB is from 11.7 to 12.2GHz. The outlook dimension is 41 X 41 X 110mm^3. Measured results show that the average gain of the LNB is 57dB, and noise figures are less than 1.7dB. It has been found that clear TV pictures have been received using the LNB for the experiment of receiving the "BS-2b" (Japanese broadcasting satellite) at Harbin region, Heilongjiang Province, P. R. China.

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