472 resultados para Halifax (N.S.)


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Concerns the preparations for the reduction of Quebec.

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Ledger containing lists and charts of smallpox inoculation cases and patient case histories of Boston physician John Jeffries (1745-1819), recorded from November 1775 to June 1802. Descriptions include patients’ names, ages, and physical condition, method of inoculation and symptoms. The entries dated 1800-1802 are not in chronological order.

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This layer is a georeferenced raster image of the historic paper map entitled: An accurate map of the country round Boston in New England. It was originally published by Archibald Hamilton in Town and country magazine (London), Jan. 16, 1776. Scale [ca. 1:362,500]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as roads, drainage, selected public buildings, town boundaries and more. Relief is shown by hachures. Includes ancillary map: A plan of Boston and Charlestown, from a drawing made in 1771, with index to points of interest. This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.

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This layer is a digital raster graphic of the historic 15-minute USGS topographic map of the Middleborough, Massachusetts quadrangle. The survey date (ground condition) of the original paper map is 1885. A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) standard series topographic map, including all map collar information. The image inside the map neatline is geo-referenced to the surface of the earth and fit to the Universal Transverse Mercator projection. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map.

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[drawn by Erwin Raisz].

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Solar heating of potable water has traditionally been accomplished through the use of solar thermal (ST) collectors. With the recent increases in availability and lower cost of photovoltaic (PV) panels, the potential of coupling PV solar arrays to electrically heated domestic hot water (DHW) tanks has been considered. Additionally, innovations in the SDHW industry have led to the creation of photovoltaic/thermal (PV/T) collectors, which heat water using both electrical and thermal energy. The current work compared the performance and cost-effectiveness of a traditional solar thermal (ST) DHW system to PV-solar-electric DHW systems and a PV/T DHW system. To accomplish this, a detailed TRNSYS model of the solar hot water systems was created and annual simulations were performed for 250 L/day and 325 L/day loads in Toronto, Vancouver, Montreal, Halifax, and Calgary. It was shown that when considering thermal performance, PV-DHW systems were not competitive when compared to ST-DHW and PVT-DHW systems. As an example, for Toronto the simulated annual solar fractions of PV-DHW systems were approximately 30%, while the ST-DHW and PVT-DHW systems achieved 65% and 71% respectively. With current manufacturing and system costs, the PV-DHW system was the most cost-effective system for domestic purposes. The capital cost of the PV-DHW systems were approximately $1,923-$2,178 depending on the system configuration, and the ST-DHW and PVT system were estimated to have a capital cost of $2,288 and $2,373 respectively. Although the capital cost of the PVT-DHW system was higher than the other systems, a Present Worth analysis for a 20-year period showed that for a 250 L/day load in Toronto the Present Worth of the PV/T system was approximately $4,597, with PV-DHW systems costing approximately $7,683-$7,816 and the ST-DHW system costing $5,238.

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Mode of access: Internet.

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Mode of access: Internet.

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Includes bibliographical references and index.

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The Gospel of John is included in this copy; the Gospels of Matthew and John have each a special t.-p. in Micmac, dated respectively 1871 and 1872.

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Contents of the collection in vol. 13-25.

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"Illustrated from half-tones."

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Mode of access: Internet.

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"First edition."