4 236 résultats
réf. 380120Contentum Ltd. Loose sheet. New. High-quality art print based on an original work from the Ycba. Created in the 18th century 1787. Professionally printed on premium fine-art paper Museum Etching museum quality in size A2. The artwork is printed with a white border museum-style presentation. Contentum Ltd. unknown
réf. 380117Contentum Ltd. Loose sheet. New. High-quality art print based on an original work from the Ycba. Created in the 18th century 1787. Professionally printed on premium fine-art paper Museum Etching museum quality in size A3. The artwork is printed with a white border museum-style presentation. Contentum Ltd. unknown
réf. 380118Contentum Ltd. Loose sheet. New. High-quality art print based on an original work from the Ycba. Created in the 18th century 1787. Professionally printed on premium fine-art paper Photo Rag Bright White in size A2. The artwork is printed with a white border museum-style presentation. Contentum Ltd. unknown
réf. Q-0802120458Grove Press 2014-07-02. Hardcover. New. New. In shrink wrap. Looks like an interesting title! Grove Press hardcover
réf. 3659771449.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
1935réf. 383419Cambridge : Harvard University Press 1935. 1st limited edition. Hardcover. Fine cloth copy in a good if somewhat edge-torn with some loss and dust-dulled dust-wrapper now mylar-sleeved. Remains quite well-preserved overall; tight bright clean and strong. Physical description; xii 327 pages diagrams portrait 24 cm. Notes; ""Edition limited to 500 hand-numbered copies of which 375 are for sale.""Contents: For complete contents see main entry card. Subjects: Carver Thomas Nixon 1865-1961.Carver Thomas Nixon 1865-1961. Economics.Sociology. Agriculture Economic aspects. Economics. SociologyEconomie politique.Sociologie. Agriculture Aspect economique.economics. sociology.Agriculture Economic aspects. Economics.Sociology. Agriculture Economic aspects.Economics. Sociology. Cambridge : Harvard University Press hardcover
1958réf. 67412Washington DC: U. S. Government Printing Office 1958. Wraps. Good. Pencil erasure residue on t-p. Cover has some wear and soiling. xi 1 869 p. Includes: illustrations diagrams bibliography. This report was preparedy by the Maritime Reacors Branch Division of Reactor Development U.S. Atomic Energy Commission and under Contract No. AT04-3-109 Directive G by the American-Standard Atomic Energy Division Mountain View CA. From Wikipedia: "Nuclear marine propulsion is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships see Nuclear navy. Only a very few experimental civil nuclear ships have been built; the elimination of fossil fuel has not outweighed the technical economic and political difficulties of this application of nuclear power.Operation of a civil or naval ship power plant is similar to land-based nuclear power reactors. A sustained nuclear reaction in the reactor produces heat that is used to boil water. The resulting steam spins a turbine. The turbine shaft may be coupled through a gearbox speed reducer to the ship's propeller or in a turbo-electric drive system may operate a generator that supplies electric power to motors connected to the propellers. The Russian U.S. and British navies rely on steam turbine propulsion while the French and Chinese ships use the turbine to generate electricity for propulsion turbo-electric propulsion. Most nuclear submarines have a single reactor but Russian submarines and the USS Triton had two. Most American aircraft carriers are powered by two reactors but the USS Enterprise has eight. The majority of marine reactors are of the pressurized water type although the US and Soviet navies have designed warships powered with liquid metal cooled reactors. Nuclear power for propulsion has several operating and logistic characteristics that appeal to the designers of ships for both civil and military purposes. A small amount of nuclear fuel can provide energy equivalent to millions of times its weight in coal or oil. It is quite practical to build a reactor which will operate a vessel for several years without refuelling. Although the cost of manufacturing nuclear fuel elements is high the overall cost of fuel is much lower than that of the amount of fossil fuel required to generate the same amount of energy. Like sailing ships nuclear vessels are independent of the vagaries of procurement of fuel at every port. The laborious and costly process of loading and burning fuel is largely eliminated for most of the vessel's operating life. Because of its high power density and the elimination of the need for large fuel bunkers a nuclear propulsion plant allows more space for paying cargo. It also allows a vessel to operate at higher speeds for years without refuelling. This improves the speed and efficiency of ocean-going commerce. Military vessels such as submarines and aircraft carriers can travel at high speeds over vast distances limited only by the endurance of their crews. Arctic vessels can operate for months independent of fuel supplies. Nuclear reactors require no oxygen for combustion and emit no exhaust gas. This is a minor benefit for surface vessels eliminating the ducts exhaust stacks and machinery needed to support the burning of fossil fuels. For submersible vessels this is the most important advantage. With nuclear power a submarine can be propelled at speeds comparable to those of surface ships for protracted periods limited only by crew endurance instead of fuel supply or battery capacity. Although not a motivation for the original development of maritime nuclear power environmental concerns have sparked increased interest on the part of some who are concerned about effects of CO2 SO2 and other air pollutants emitted by cargo ships. For economic reasons ships operate on the lowest-quality fuel their engines can tolerate resulting in very high emissions of pollutants." U. S. Government Printing Office paperback
2000réf. 1327316PN. New. 2000. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1998réf. 1310119PN. New. 1998. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1999réf. 1318513PN. New. 1999. Soft Cover. Date is original print. This is a reprint edition . PN paperback
réf. 6138494601.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. 6208321778.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. 1506531229.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
2005réf. ae92EISA 2005. 1st Edition. Soft cover. Very Good. The wraps are a bit rubbed. Internally clean and tightly bound. One price notation. Our orders are shipped using tracked courier delivery services. EISA paperback
réf. 144379032X.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. 1017959412.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
réf. 1334015341.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. 3744738949.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. ria9783744738941_inpPaperback. New. New Book; Fast Shipping from UK; Not signed; Not First Edition; Elementary plane trigonometry - that is plane trigonometry without imaginaries is an unchanged high-quality reprint of the original edition of 1892. Hansebooks is editor of the literature on different topic areas such as research and paperback
réf. 0483892505.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
réf. B9783744738941Paperback / softback. New. paperback
réf. 45487700-nnew. unknown
réf. 45487700like new. unknown
réf. 1330273672.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
réf. 0365019445.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover