نتایج جستجو برای: producer gas

تعداد نتایج: 255881  

Journal: :Proceedings. Biological sciences 2012
Edith Katsnelson Uzi Motro Marcus W Feldman Arnon Lotem

In frequency-dependent games, strategy choice may be innate or learned. While experimental evidence in the producer-scrounger game suggests that learned strategy choice may be common, a recent theoretical analysis demonstrated that learning by only some individuals prevents learning from evolving in others. Here, however, we model learning explicitly, and demonstrate that learning can easily ev...

2001
MARGARITA HERNANZ

A general review of the relevance of classical novae for the chemical evolution of the Galaxy, as well as for Galactic radioactivity is presented. A special emphasis is put on the pioneering work done by Jim Truran in this field of research. The impact of recent developments in nuclear astrophysics on nova nucleosynthesis, together with the prospects for observability of novae radioactivities w...

Journal: :Environmental science & technology 2012
Jean-Philippe Nicot Bridget R Scanlon

Shale-gas production using hydraulic fracturing of mostly horizontal wells has led to considerable controversy over water-resource and environmental impacts. The study objective was to quantify net water use for shale-gas production using data from Texas, which is the dominant producer of shale gas in the U.S. with a focus on three major plays: the Barnett Shale (~15,000 wells, mid-2011), Texas...

2017
Mirka Deza Francine Battaglia Theodore J. Heindel

Fluidized beds can be used to gasify biomass in the production of producer gas, a flammable gas that can replace natural gas in process heating. Modeling these reactors with computational fluid dynamics (CFD) simulations is advantageous when performing parametric studies for design and scale-up. From a computational resource point of view, two-dimensional simulations are easier to perform than ...

2005
DAVID E. M. SAPPINGTON DENNIS L. WEISMAN

We analyze the incentives of a vertically-integrated producer (VIP) to engage in “self-sabotage”. Self-sabotage occurs when a VIP intentionally increases its upstream costs and/or reduces the quality of its upstream product. We identify conditions under which self-sabotage is profitable for the VIP even though it raises symmetrically the cost of the upstream product to all downstream producers ...

2006
Kevin Crowston

Introduction: Dependencies And Coordination Organizational Research Research In Artificial Intelligence And Other Fields A Framework For Studying Coordination Managing Task-Resource Dependencies Task Uses A Resource Task Produces A Resource Managing Dependencies Among Multiple Tasks And Resources Shared Resource Producer-Consumer Common Object Dependencies Between One Task And Multiple Resource...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2009
J. Norton Nancy F. Glenn M. Germino K. Weber S. Seefeldt

Remote sensing indices of burn area and fire severity have been developed and tested for forest ecosystems, but not sparsely vegetated, desert shrub-steppe in which large wildfires are a common occurrence and a major issue for land management. We compared the performance of remote sensing indices for detecting burn area and fire severity with extensive ground-based cover assessments made before...

2011
Viral V. Acharya Lasse H. Pedersen Thomas Philippon Matthew Richardson

There is a growing view that systemic risk arises due to loss of intermediation for the overall economy – a negative externality – when the financial sector becomes under-capitalized as a whole. In turn, the systemic risk contribution of an individual financial firm can be defined as its share of this negative externality. Motivated by this intuition, a number of authors have proposed a “Pigovi...

1996
William B. Beyers

P roducer services, a collection of business-tobusiness service industries, have become an important source of job generation across America. In fact, 9.3 million of the 30.1 million new jobs created in the United States from 1974 to 1991 were in the producer services industry, the largest growth of any broad industrial sector in the nation. Has the rural Heartland shared in this producer servi...

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