4 resultados para 422
em Brock University, Canada
Resumo:
Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.
Resumo:
A number of Brock's faculty and top administration head for a welcoming ceremony at the beginning of the term in 1966 to welcome new students and give several speeches at the Glenridge Campus.
Resumo:
Using the energy dispersive x ...ray diffraction (EDXD) technique, the room temperature diffraction pattern of Al powder was obtained at diffraction angles ~ 30° and 50°. From the small angle diffraction pattern the average relative intensities (IR) of the (111), (200), and (220) lines were measured to be equal to 100, 62, and 32 respectively. From the large diffraction angle IR for the (220), (311+222), (400), (331+420), and (422) lines were measured to be 100,201,17,90, and 19.5 respectively. The diffraction pattern at those two angles were obtained at several higher temperatures to measure the change in the intensities of the Al lines. From the intensity changes the increase of the Debye- Waller temperature factor, i.e ~B(T), with respect to the value at room temperature was determined to be 0.6+0.1 at 250°C, 1.10+0.15 at 350°C, 1.45+0.20 at 450°C, and 2.20±0.35 at 550°C.
Resumo:
The Welland Canal Company was formed in 1824 by William Hamilton Merritt. Construction of the first Welland Canal began in 1829 and was completed in 1834. The canal ran south from Port Dalhousie along Twelve Mile Creek to St. Catharines. An extension was built in 1833 to Gravelly Bay, now Port Colborne. As ships became larger and the wooden locks deteriorated, the need for a new canal became apparent. In 1839, the government purchased the Welland Canal Company’s assets and began making plans for the construction of a second canal. Construction began in 1841 and was completed by 1845. In 1887, a third Welland Canal was completed, which operated until 1932, when a fourth canal was completed. This canal remains in operation today.
