low-cycle
111Pelagic Ecology of the Low Salinity San Francisco Estuary — Pelagic organisms spend all or part of their lives in the open water, where habitat isdefined not by edges but by physiological tolerance to salinity and temperature. The LowSalinity Zone (LSZ) of the San Francisco Estuary constitutes a habitat… …
112Medici cycle — (1622 1625; Paris, Louvre) In 1615, Marie de Medici, wife of Henry IV of France, commissioned Salomon de Brosse to build for her the Luxembourg Palace in Paris based on the Palazzo Pitti, the residence in Florence where she had lived as a… …
113business cycle — trade cycle The process by which investment, output, and employment in an economy tend to move through a recurrent cycle of upturn, prosperity, downturn, and recession The cycle does not describe a regular pattern in either length or amplitude.… …
114Extremely low frequency — (ELF) is the band of radio frequencies from 3 to 30 Hz. ELF was used by the US Navy and Soviet/Russian Navy to communicate with submerged submarines.ExplanationBecause of the electrical conductivity of salt water, submarines are shielded from… …
115Ozone-oxygen cycle — in the ozone layer. The ozone oxygen cycle is the process by which ozone is continually regenerated in Earth s stratosphere, all the while converting ultraviolet radiation into heat. In 1930 Sydney Chapman resolved the chemistry involved. The… …
116Pressure-fed cycle (rocket) — The pressure fed cycle is a class of rocket engine designs. A separate gas supply, usually helium, pressurizes the propellant tanks to force fuel and oxidizer to the combustion chamber. To maintain adequate flow, the tank pressures must exceed… …
117Binary cycle power plant — A binary cycle power plant is a type of geothermal power plant that allows cooler geothermal reservoirs to be used than with dry steam and flash steam plants. They are used when the temperature of the water is less than 175 °C (350 °F). With… …
118Human impacts on the nitrogen cycle — Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation (Galloway 2003). As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over… …
119Siemens cycle — The Siemens cycle is a technique used to cool or liquify gases. [ [http://www.chem.ufl.edu/ itl/4411L f00/gamma/gamma.html Adiabatic Expansion Cooling of Gases] ] . A gas is compressed, leading to an increase in its temperature (by Gay Lussac s… …
120Credit Cycle — A cycle involving the access to credit by borrowers. Credit cycles first go through periods in which funds are easy to borrow; these periods are characterized by lower interest rates, lowered lending requirements and an increase in the amount of… …
