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Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [ 1 ]
Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [1]
Survival analysis is a branch of statistics for analyzing the expected duration of time until one event occurs, such as death in biological organisms and failure in mechanical systems. This topic is called reliability theory, reliability analysis or reliability engineering in engineering, duration analysis or duration modelling in economics ...
The global warming potential (GWP) is defined as an "index measuring the radiative forcing following an emission of a unit mass of a given substance, accumulated over a chosen time horizon, relative to that of the reference substance, carbon dioxide (CO 2). The GWP thus represents the combined effect of the differing times these substances ...
Climate charts provide an overview of the climate in a particular place. The letters in the top row stand for months: January, February, etc. The bars and numbers convey the following information: The blue bars represent the average amount of precipitation (rain, snow etc.) that falls in each month. The blue numbers are the amount of ...
Half-life (symbol t½) is the time required for a quantity (of substance) to reduce to half of its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive. The term is also used more generally to characterize any type of exponential (or, rarely ...
This document is a 35-page excerpt, including the. Welcome chapter of the book and. Part 1: The Principles of Best Year Yet –. three hours to change your life. First published by. HarperCollins in 1994. and by Warner Books in 1998. Available in 12 other languages, including Spanish, Dutch, German, Italian, Swedish, Romanian, Chinese, and ...
Specific latent heat. L. L = ∂ Q / ∂ m {\displaystyle L=\partial Q/\partial m} J⋅kg −1. L 2 T −2. Ratio of isobaric to isochoric heat capacity, heat capacity ratio, adiabatic index, Laplace coefficient. γ. γ = C p / C V = c p / c V = C m p / C m V {\displaystyle \gamma =C_ {p}/C_ {V}=c_ {p}/c_ {V}=C_ {mp}/C_ {mV}} 1.