1,754,279 research outputs found
Butt, Arthur. Arthur Butt interview, February 4, 1998.
No full textRetired wildlife officer Arthur Butt discusses his family background involving possible murder of his father
Butt, Arthur. Arthur Butt interview, February 11, 1983.
No full textArthur Butt discusses his life experiences and stories of being a wildlife officer. He also discusses the history of the Badger area. He discusses his family history as well, most notably, the probable murder of his father
Butt fusion welding of polyethylene pipes
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The butt fusion process is extensively used in the joining of polyethylene (PE) pipes by the water and gas industries. This welding process although deceptively simple, is rather poorly understood, with much of the initial developments being of a rather empirical nature. The Water Research centre (WRc) have funded the present research in an attempt to optimise the welding of high pressure pipeline (PE100) systems. The main aims of this research were to investigate the effect of different welding conditions on the physical and mechanical properties of the joints produced and to investigate these effects on the micro- and macro-structures
of the joints produced. A series of welds were made using Eltex Tub 124 and Rigidex
002-50 pipes of 180mm diameter. The fusion pressure and heatsoak times were varied. A milling machine witha twin cutter arrangement was used to obtain the test specimens from around the circumference of the pipes. Differential scanning calorimetry was used to study the effect of sample
preparation methodology on the thermo-oxidative stability. Polarised light microscopy and image analysis were used to
study the macro- and micro-structural developments in the weld joint. Joint strength was evaluated via standard and
non-standard tensile test methods. Milling the samples to produce the test specimens was found to decrease significantly the thermo-oxidative resistance of the polymer. Reasons for this behaviour have been proposed. In order to achieve high quality thin films from microtomy, custom-made blades were used. This programme also developed the optimum polishing method for the microtomed blades. The macro-structure of the bead: its shape and dimensions were
found to be a function of temperature and pressure. Correlation was found between the bead geometry and the position around the circumference of the pipe. The macrostructures within the weld zone also showed this dependence on the position along the circumference of the pipe. An examination of the microstructures of each weld had shown the presence of five different zones. The feasibility of using microtomed thin sections in a tensile test was demonstrated. The test method provides a
means to study failure initiation and propagation in the tensile test specimen. Initial deformation was found to occur
in the centre of the melt-affected zone (MAZ) and the final failure occurs at the junction of the weld bead and the bulk
polymer. Tests on films without the weld bead showed that maximum deformation occurred at the centre of the sample
within the MAZ. The presence of the bead and the asymmetry in the test specimens caused by the welding process were found to have a
significant influence on the failure mode and the failure strain. The strain rate was also found to play a significant role in both beaded and debeaded samples. The failure was initiated from the pseudo notches in the beaded samples. In the debeaded sample the failure was within the MAZ
Butt, Stewart W. August 6, 2018. Stewart Butt, Red Bay
No full textStewart Butt, boat builder in Red Bay, Labrador. Photo taken during interview: Butt, Stewart W. August 6, 2018. Crystal Braye and Jeremy Harnum interviewing Stewart Butt, Red Ba
B-33 Side A - Ellison Butt
No full textEllison Butt (1936-2013) recollects municipal politics, running for City Council, and amalgamation.Side B of cassette tape is blank
Author Leigh Roethke will discuss her debut book Minnesota's Capitol
No full textButt, Leanne. (2005). Author Leigh Roethke will discuss her debut book Minnesota's Capitol. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220718
Author Leigh Roethke will discuss her debut book Minnesota's Capitol at the University of Minnesota
No full textButt, Leanne. (2005). Author Leigh Roethke will discuss her debut book Minnesota's Capitol at the University of Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220707
The Arts Interview . Sid Butt : Painter
No full textHost Fred Hollingshurst interviews Newfoundland visual artist Sid Butt who discusses the evolution of his art. Butt was first interested in pottery then concentrated on painting. His material includes landscapes, derelict cars and figures. Includes images of Butt's paintings
Author Will Weaver discusses his book Barns of Minnesota at the University of Minnesota Crookston Bookstore.
No full textButt, Leanne. (2005). Author Will Weaver discusses his book Barns of Minnesota at the University of Minnesota Crookston Bookstore.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220556
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