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Scienze e storia dell' ambiente padano
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The report provides general guidance on the steady-state performance requirements of high-voltage direct-current (HVDC) systems. It concerns the steady-state performance of two-terminal HVDC systems utilizing 12 pulse converter units consisting of three-phase bridge (double way) connections. Excluded are multi-terminal HVDC transmission systems. Both converters are assumed to use thyristor valves as the main semiconductor valves and to have power flow capability in both directions. No consideration is given to diode valves.
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This recommended practice outlines a test procedure for the evaluation of the impulse voltage capability of insulation systems of form-wound alternating current rotating electrical machinery. This test procedure forms a base for the accumulation, analysis, and reporting of information concerning impulse voltage withstand strength of ground and turn insulation, both new and aged. The immediate goal is a better understanding of relevant aging mechanisms; the ultimate aim of this document is to aid in estimating life of an insulation system under specified service conditions.It must be emphasized that this test procedure is intended, at this time, for trial use. Future revisions, made after experience with it, should result in more definitive specifications being possible.
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1 vol. (4 issues) / year!!numérotation du périodique précédent n'est pas vérifiée
The Netherlands --- cultivation methods --- current periodical --- horticulture
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Cost accounting. --- Current value accounting. --- Interest --- Accounting.
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Until 1992 2 fasc. / year ; since 1993 1 vol. / year
Belgium --- full text online --- current periodical --- dendrology --- societies --- yearly
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on line at the address "www.foresterie.org/fsd/fsdprec.html#Amel"
Canada --- Québec --- current periodical --- forestry --- timbers --- forest conservation --- natural resources
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The choice of assigning monetary or fiscal policy to external balance is complicated when the authorities are concerned with both the current account balance and the exchange rate. A strategy of using monetary policy to control the current account via the exchange rate may fail, because the relative-price effect is likely to be offset by the effect of monetary policy on aggregate demand. An alternative strategy, in which fiscal policy is assigned to limit shifts in the current account while the exchange rate is not directly targeted, may have a better chance of having favorable effects on both variables.
Balance of payments --- Currency --- Current Account Adjustment --- Current account balance --- Current account --- Exchange rates --- Exports and Imports --- Fiscal Policy --- Fiscal policy --- Foreign Exchange --- Foreign exchange --- International economics --- Macroeconomics --- Public Finance --- Real exchange rates --- Short-term Capital Movements --- United States
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Superseded by C37.04-1999. Supplement to IEEE Standard Rating Structure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis (IEEE C37.04-1979).
Electric circuit-breakers --- Electric circuits --- Standards, Engineering. --- High voltages. --- Standards. --- Alternating current
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The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
Balance of payments --- Credit --- Current Account Adjustment --- Current account balance --- Current account deficits --- Current account --- Deflation --- Domestic credit --- Exports and Imports --- Inflation --- International economics --- Macroeconomics --- Monetary economics --- Monetary Policy, Central Banking, and the Supply of Money and Credit: General --- Money and Monetary Policy --- Price Level --- Prices --- Short-term Capital Movements
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