56 resultados para Isoelectric Point

em Brock University, Canada


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Various s e t s of single c rys t a l s and poly c rys t a l s of Cux TiSe2 were grown. X- r ay diffraction and ene rgy dispersive spe c t ros copy r e sul t s verified tha t the c rys t a l s were the cor r e c t compos i t ion and c rys t a l s t ruc tur e . Re s i s t ivi ty me a sur ement s and magne t i c sus c ept ibi l i ty me a sur ement s de t e rmined the supe r conduc t ing t r ans i t ion t empe r a tur e s for the c rys t a l s . The c rys t a l s in each growth had various supe r conduc t ing t r ans i t ion t empe r a tur e s . Also, the me a sur ement s indi c a t ed tha t the c rys t a l s were inhomogeneous. Point cont a c t spe c t ros copy expe r iment s were employed on various single c rys t a l s . Inspe c t ion of the da t a indi c a t ed tha t the ma t e r i a l ha s a single ene rgy gap . A progr am was bui l t ut i l i z ing the Levenbe rg-Ma rqua rdt me thod and theory on point cont a c t spe c t ros copy to de t e rmine the supe r conduc t ing ene rgy gap. Plot s of the supe r conduc t ing ene rgy gap a t various t empe r a tur e s were in di s agr e ement wi th wha t was expe c t ed for a convent iona l supe r conduc tor .

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This investigation aims to gain a better understanding of the glacial history of the Pine Point Mining district, Northwest Territories, by examining the sedimentological properties of the glacial sediments including, geochemical analysis, heavy mineral concentrate analysis, clast macro-­‐fabrics, pebble lithologies, and micromorphological investigation. Four till units were identified, and three were associated with identified erosional bedrock features and streamlined landforms in the area, indicating a minimum of three ice flow directions. Sedimentological properties suggest that these units were all Type-­B tectomict/mélange till, emplaced as part of a soft subglacial deformable bed. The lack of ice-­‐marginal advance and retreat sequences within the studied till, suggests the Middle Wisconsinan Laurentide Ice margin was likely north and west of the Pine Point area, as opposed to along the margin of the Canadian Shield and Western Sedimentary Basin where it has been suggested to have existed.

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This book marks the one hundredth anniversary of the formation of the Long Point Company. There are penciled initials R.A.L. [Robert A. Laidlaw], Jan. 12th, 1967 within the front cover. See the full text of this item in the Brock University Special Collections and Archives.

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The description of the image reads "(3) Looking down over the high preciptous Bluff at Prospect Point, Niagara, U.S.A."

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The description of the image reads "(2) Admiring Tourists viewing the Falls, from Prospect Point, Niagara, U.S.A."

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The description on the image reads "Free Niagara, Prospect Point, Niagara Falls".

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The description of the image reads "Magnificent outlook over Niagara, world's grandest waterfall, from Prospect Point to Horseshoe Falls". The side of the card is also stamped "By Royal Command to Their Imperial Majesties King George V and Queen Mary".

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The description of the image is written in German and mentions Prospect Point and the American Falls. There is also a number listed, V23281.

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The description of the image reads "Prospect Point-Niagara".

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Sketch of the bridge over Hurst’s Point and calculations about the bridge over the pond at Allenburgh, n.d.

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Notice from the Crown Lands Department of Ottawa that the lands on Long Point, Lake Erie would be offered at public auction on May 4, 1866. This is attached to a small newspaper clipping with the same information, dated April 20, 1866.

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Newspaper clipping stating the Long Point Company purchased the island of Long Point in Lake Erie. The directors are named in the clipping and it is noted that this is a place for real sportsmen only, n.d.

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Act to incorporate the Long Point Company. This is a 4 page document, printed on vellum. It was printed by Malcolm Cameron, Law Printer to the Queen, Aug. 15, 1866.

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Long Point Company by-laws together with by-laws as to shooting on Long Point. This is a 9 page printed booklet, 1869. Spectator Printing House, Cor. Main and James Streets.