beak-head
A Dictionary of Architecture and Landscape Architecture
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2000
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© A Dictionary of Architecture and Landscape Architecture 2000, originally published by Oxford University Press 2000. (Hide copyright information)
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beak-head. Romanesque carving in the form of a series of animal-, bird-(
bird's-head), or humanoid-heads with long pointed beaks (or tongues) curving around a lower
roll-moulding, as in a church doorway. Heads with stumpier cone-like beaks are
cats'-heads.
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Acetylene: December 3, 2001. (Chemical Profile).(production)(Brief Article)(Statistical Data Included)
Magazine article from: Chemical Market Reporter; 12/3/2001; 700+ words
; ACETYLENE: December 3, 2001. (Chemical Profile...industrial gas producers manufacturing acetylene from calcium carbide. The majority of...targeted for chemical use, including acetylene black, with the balance currently being...
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Chemicals from Acetylene: Back to the Future?
Business Wire; 6/26/2007; 700+ words
; ...Between 1960 and 1970, when worldwide acetylene production peaked, it served as the...in olefins technology, concerns about acetylene safety, but mostly loss of cost competitiveness...effectively limited the importance of acetylene. Now, with the current rise in petroleum...
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TDL-BASED ANALYZER ENSURES ACCURATE ACETYLENE MEASUREMENT.
Newspaper article from: Industrial Environment; 2/1/2009; 700+ words
; Excessive acetylene contaminants in ethylene make that valuable...based analyzer constantly measures acetylene contaminants during ethylene production...most problematic of those impurities is acetylene (C2H2), which can be difficult to...
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Big Margin Growth in Supply and Demand of Acetylene Black in 1997
Magazine article from: China Chemical Reporter; 12/30/1996; 700+ words
; Table 1 Output of Acetylene Black in China in Recent Years Output...23.7 Table 2 Production of Major Acetylene Black Producers in China Output Proportion...105 3.6 Table 3 Consumption of Acetylene Black in China in Recent Years Consumption...
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Purifying ethylene with more precision: tunable diode laser-based analyzers can eliminate costly inaccurate acetylene measurement problems in ethylene production.(Field Report/Measurement Equipment)
Magazine article from: Chem.Info; 4/1/2009; 700+ words
; Excessive acetylene contaminants in ethylene make that valuable...based analyzer constantly measures acetylene contaminants during ethylene production...most problematic of those impurities is acetylene ([C.sub.2][H.sub.2...
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Acetylene blockage technique as a tool to determine denitrification potential of a biomass fixed on an organic media treating wastewater.(NOTE)
Magazine article from: Journal of Environmental Engineering and Science; 9/1/2006; ; 700+ words
; ...microorganisms' activity inside the process. The acetylene blockage technique was adapted to evaluate...network where pure gaseous nitrogen and acetylene had been successively injected at fixed...filtering media. Moreover, when under an acetylene atmosphere, the coefficients of variation...
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BASF to Expand Acetylene Capacity.
Business Wire; 6/19/1997; 700+ words
; ...announced today that it will build a new acetylene plant with a capacity of more than 100...efficient conversion of natural gas into acetylene and syngas. Both of these intermediates...chemical value chains at Geismar. The acetylene plant investment will be supported by...
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A clean machine Local firm using acetylene to power internal combustion engines.
Newspaper article from: Columbia Daily Tribune; 10/31/2007; ; 700+ words
; ...S. Department of Energy to designate acetylene gas an alternative fuel. The company...run engines on "rocks and water." Acetylene is a flammable gas that once was used...feasible to power combustion engines on acetylene." "I think it could be substantial...
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 "The Record (Bergen County, NJ)")
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Acetylene makers get new guidelines
Newspaper article from: The Record (Bergen County, NJ); 1/27/2006; ; 532 words
; ...Bergen County, NJ) 01-27-2006 Acetylene makers get new guidelines -- U.S...Board released a report Thursday warning acetylene producers to take special precautions...and critically wounded a fourth when acetylene gas exploded at an industrial site...
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Airgas Inc. announces an increase in retail acetylene pricing.
PR Newswire; 4/25/1990; 616 words
; ...INC. ANNOUNCES AN INCREASE IN RETAIL ACETYLENE PRICING WILMINGTON, Del., April 25...announced an increase in the retail price of acetylene gas of $1 per hundred cubic feet...percent -- and a $1 per month increase in acetylene cylinder rental charges. The increases...
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Acetylene
Book article from: How Products Are Made
Acetylene Background Acetylene is a colorless, combustible gas with a distinctive odor. When acetylene is liquefied, compressed, heated, or mixed with air, it becomes highly explosive. As a result special precautions are required during its...
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acetylene
Book article from: The Columbia Encyclopedia, Sixth Edition
acetylene or ethyne , HC[triple bond]CH, a colorless gas. It melts...84.0°C. Offensive odors often noted in commercial acetylene are due to impurities. Acetylene forms explosive mixtures with oxygen or air. It is soluble...
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acetylene series
Book article from: The Columbia Encyclopedia, Sixth Edition
acetylene series see alkyne .
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Dalén, Nils Gustaf
Encyclopedia entry from: Encyclopedia of World Biography
...storage and long – term use of acetylene gas, as well as on automation and differentiation...technical chief of Swedish Carbide and Acetylene and he subsequently joined the Gas Accumulator...preparation of the gaseous hydrocarbon acetylene from calcium carbide. This discovery...
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Nieuwland, Julius Arthur
Dictionary entry from: Complete Dictionary of Scientific Biography
...later work — on the reactions of acetylene. His discovery of the reaction between acetylene and arsenic trichloride (which he did not...junior collaborators, resumed his work on acetylene. He was able to polymerize acetylene under...
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