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...ide fuel cells], Ph.D. Thesis by Florian Nagel, Swiss Federal Institute of Technology Zurich, 2008</ref>. Most of these engines have severe purity requirements o [[File:Nambassa 1981 Alt Energy centre Gas Producer Photographer Michael Bennetts.jpg|thumb|A charcoal gas

Gasification was an important and familiar 19th and early 20th century technology, and its potential and practical applicability to [[internal combustion eng Usually, wood gas generators burn wood, but improvements to efficiency and energy-density are possible, by using [[charcoal]] instead, as charcoal produces a

{{renewable energy sources}} {{Sustainable energy}}

Biopolymers (also called renewable polymers) are generally produced from [[biomass]], which comes from crops s '''Biopolymers are renewable, sustainable, and can be carbon neutral'''

...RMC)] at [[Tulane University]] in [[New Orleans]], [[Louisiana]] uses this technology for its various research projects. ...e product is being produced according to specification. With this, optimum energy efficiency and product quality can be achieved through online adjustments t

| url = http://www.energy.gov.ab.ca/OilSands/1106.asp | publisher = Alberta Energy

...n [[asphalt]] alternative made from [[bitumen]] from non-petroleum based [[renewable resource]]s. ...ID=5132&I=en |title=Press Releases - February 2006 - Environmentally Sound Technology Fair Offers Innovative Solutions - United Nations Environment Programme |pu

...1106.asp|archiveurl = http://web.archive.org/web/20071101112113/http://www.energy.gov.ab.ca/OilSands/1106.asp|archivedate = 2007-11-01|accessdate = 2008-10-0 ...]].<ref>{{cite web|url=http://www.eia.doe.gov/kids/energyfacts/sources/non-renewable/oil.html#Howused |title=Crude oil is made into different fuels |publisher=E

...Lin Wang|title=Letter/abstract: Microfibre–nanowire hybrid structure for energy scavenging|url=http://www.nature.com/nature/journal/v451/n7180/full/nature0 ...ta|title=Milk-fabric clothing raises a few eyebrows|url=http://www.textile-technology.com/2010/04/milk-fabric-clothing-raises-a-few-eyebrows/|date=August 23, 200

...des |url= |format= |accessdate= |edition= |series= Papermaking Science and Technology |volume= 18 |date= |year= 2000|month= |origyear= |publisher= Fapet Oy|locat ...des |url= |format= |accessdate= |edition= |series= Papermaking Science and Technology |volume= 18 |date= |year= 2000|month= |origyear= |publisher= Fapet Oy|locat

...door air quality. Natural building tends to rely on human labor, more than technology. As Michael G. Smith observes, it depends on "local ecology, geology and cl ...imizing the [[ecological footprint]] is common, as are on-site handling of energy acquisition, on-site water capture, alternate sewage treatment and water re

...radon]], [[volatile organic compound]]s), [[particulate]]s, or any mass or energy stressor that can induce adverse health conditions. Indoor air is becoming ...Buildings.pdf Interior plants: their influence on airborne microbes inside energy-efficient buildings]. ''Journal of the Mississippi Academy of Sciences''.</

...in [[zinc carbonate]]<ref>Cadmium in Kirk-Othmer Encyclopedia of Chemical Technology, John Wiley & Sons, Inc., 1999, revision to be published 2010</ref>. ...ng regulations <ref name="ReferenceA">Kirk-Othmer Encyclopedia of Chemical Technology, Article Cadmium</ref>. Although cadmium is toxic, one [[enzyme]], a [[carb

...7351784.</ref><ref>''Fertilizer Industry: Processes, Pollution Control and Energy Conservation'' by Marshall Sittig (1979) Noyes Data Corp., N.J. ISBN 0-8155 ...g problems posed by the use of large-scale, continuous-flow, high-pressure technology.

# Suitability as a fuel, based on [[flash point]], energy content, [[viscosity]], [[fire|combustion products]] and other factors ...Shaik Ramjan Vali, Ismojowati Tjondronegoro, and Musfil A.S.|journal=World Energy Congress|year=2004|issue=19}}</ref>