Introduction to Heat Transfer

by Eunmo Koo (Author) Wildfires are complex phenomenon. To understand their spread mechanisms, physics based wildfire models are developed here. Discontinuous fire spread, i.e., spotting, is studied through a review of historical wind-driven and post-earthquake fires. Transport of various shapes of combusting firebrands is modeled using momentum balance on the firebrand. Firebrand trajectories are simulated in velocity and thermal fields generated by the FIRETEC wildfire model. Contiguous fire spread is modeled based on energy conservation and detailed heat transfer mechanisms. Predictions of contiguous fire spread rates are compared to laboratory experiments and prescribed fires.

by Vladimir Ya. Alexandrov (Author), V.A. Bernstam (Translator)

(Ecological Studies, 21) Softcover reprint of the original 1st ed. 1977 Edition  

After the great achievements in the field of molecular foundations of genetics and protein synthesis, molecular biology undertook the successful deciphering of a number of other important biological problems. By this time ecology in its various branches was far enough advanced to tackle the problems arising at the level of molecular biology. The monograph of Professor Alexandrov, which takes as an example the adaptation of organisms to habitat temperatures, presents a vivid picture of this major ecological problem as viewed at the cellular and molecular levels. As main theme of the book the author advances a hypothesis on a correlation between the level of conformational flexibility of protein molecules and the temperature ecology of a species, as a result of which the protein molecules are maintained in a semilabile state. This principle may also be applied to other factors of the environment which affect the level of flexibility of protein macro­ molecules. The principle of semistability is shown to be applicable also to the nucleic and fatty acids.

2015th Edition

by Robert E. Keane (Author) A new era in wildland fuel sciences is now evolving in such a way that fire scientists and managers need a comprehensive understanding of fuels ecology and science to fully understand fire effects and behavior on diverse ecosystem and landscape characteristics. This is a reference book on wildland fuel science; a book that describes fuels and their application in land management. There has never been a comprehensive book on wildland fuels; most wildland fuel information was put into wildland fire science and management books as separate chapters and sections. This book is the first to highlight wildland fuels and treat them as a natural resource rather than a fire behavior input. Moreover, there has never been a comprehensive description of fuels and their ecology, measurement, and description under one reference; most wildland fuel information is scattered across diverse and unrelated venues from combustion science to fire ecology to carbon dynamics. The literature and data for wildland fuel science has never been synthesized into one reference; most studies were done for diverse and unique objectives. This book is the first to link the disparate fields of ecology, wildland fire, and carbon to describe fuel science. This just deals with the science and ecology of wildland fuels, not fuels management. However, since expensive fuel treatments are being planned in fire dominated landscapes across the world to minimize fire damage to people, property and ecosystems, it is incredibly important that people understand wildland fuels to develop more effective fuel management activities.