| NPV | negative predictive value; pressure value; negative pressure ventilation; net present value; nuclear... |
|---|---|
| BLV | Biologic Limit Value; »ý¹°ÇÐÀû Çã¿ëÇѰè |
| CEA | Carcino-Embryonic Antigen [HP 1825-6] ; Oncofetal Antigens ; Glycopro... |
| HVL | Half-Value Layer |
| TLV | Threshold Limit Value |
| HVL | 6-half-value layer |
|---|---|
| BV | Biological Value |
| EBV | Estimated breeding value |
| MV | Maturation Value |
| NPV | Negative Predictive Value |
| biomass fuel | Liquid, solid, or gaseous fuel produced by conversion of biomass. (05 Dec 1998) |
|---|---|
| refuse-derived fuel | (RDF) Fuel prepared from municipal solid waste. Noncombustible materials such as rocks, glass, and metals are removed, and the remaining combustible portion of the solid waste is choped or shreaded. RDF facilities process between 100 and 3000 tons of MSW per day. (05 Dec 1998) |
| hog fuel | (hogged fuel) Wood residues processed through a chipper or mill to produce coarse chips normally used for fuel. Bark, sawdust, planer shavings, wood chunks, dirt, and fines may be included. (05 Dec 1998) |
| fossil fuel | Solid, liquid, or gaseous fuels formed in the ground after millions of years by chemical and physical changes in plant and animal residues under high temperature and pressure. Oil, natural gas, and coal are fossil fuels. (05 Dec 1998) |
| fuel | 1. Any matter used to produce heat by burning; that which feeds fire; combustible matter used for fires, as wood, coal, peat, etc. 2. Anything that serves to feed or increase passion or excitement. Artificial fuel, fuel consisting of small particles, as coal dust, sawdust, etc, consolidated into lumps or blocks. Origin: OF. Fouail, fuail, or fouaille, fuaille, LL. Focalium, focale, fr. L. Focus hearth, fireplace, in LL, fire. See Focus] [Formerly written also fewel. Source: Websters Dictionary (01 Mar 1998) |
| fuel cell | A device that converts the energy of a fuel directly to electricity and heat, without combustion. (05 Dec 1998) |
| fuel-cell furnace | A variation of the Dutch oven design, that usually incorporates a primary and secondary combustion chamber (cell). The primary chamber is a vertical refractory-lined cylinder with a grate at the bottom in which combustion is partially completed. Combustion is completed in the secondary chamber. (05 Dec 1998) |
| fuel cycle | The series of steps required to produce electricity. The fuel cycle includes mining or otherwise acquiring the raw fuel source, processing and cleaning the fuel, transport, electricity generation, waste management and plant decommissioning. (05 Dec 1998) |
| fuel handling system | A system for unloading wood fuel from vans or trucks, transporting the fuel to a storage pile or bin, and conveying the fuel from storage to the boiler or other energy conversion equipment. (05 Dec 1998) |
| fuel oils | Complex petroleum hydrocarbons consisting mainly of residues from crude oil distillation. These liquid products include heating oils, stove oils, and furnace oils and are burned to generate energy. (12 Dec 1998) |
| acetyl value | The milligrams of KOH required to neutralise the acetic acid produced by the hydrolysis of 1 g of acetylated fat; a measure of the hydroxy acids present in glycerides; notably high in castor oil. (05 Mar 2000) |
| beta, or beta-value | <radiobiology> Ratio of plasma kinetic pressure to magnetic-field pressure, proportional to the ratio of plasma kinetic energy density to magnetic field energy density. Beta is usually measured relative to the total, local field (loosely called beta toroidal), but sometimes the plasma pressure relative to only the poloidal component of the field (beta poloidal) or relative to some external field (like the maximum field at the magnetic coils) is more useful. There is also a normalised beta (beta_N) of interest when discussing the beta limit. (lots of help from Art Carlson with the above.) Because the cost of a reactor is strongly influenced by the strength of the magnetic field that must be provided, beta values are directly related to the economics of fusion power production. Beta is usually expressed as a percentage, with 5% generally believed to be the minimum value required for an economical fusion reactor. See: pressure, kinetic pressure, magnetic pressure, second stability. (09 Oct 1997) |
| biological value | <nutrition> The nutritional value of a protein, usually measured in comparison to the nutritional value of egg protein, which is the highest possible (BV=0.9 - 1.00). (21 Mar 1998) |
| buffer value | The power of a substance in solution to absorb acid or alkali without change in pH; this is highest at a pH value equal to the pKa value of the acid of the buffer pair. See: buffer capacity. Synonym: buffer index. (05 Mar 2000) |
| buffer value of the blood | The ability of the blood to compensate for additions of acid or alkali without disturbance of the pH. (05 Mar 2000) |
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