elfin woodland
elfin woodland A
facies of tropical upper
montane or subalpine forest, with dwarfed and gnarled trees, which grows on extreme or exposed sites. The term is sometimes applied outside the tropics, although in this context it is more usual to apply the name
kampfzone or
krummholz.
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Flame tests performed safely: a safe and effective alternative to the traditional flame test.
Magazine article from: The Science Teacher; 9/1/2005; ; 700+ words
; ...using spectroscopes and performing flame tests are important activities...for students to actively perform flame tests and identify ions in solutions...metals produce different colors of flames." Flame test background The flame test is one...
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Flame tests: a burning safety issue.(SCOPE ON SAFETY)
Magazine article from: Science Scope; 11/1/2008; ; 700+ words
; ...chemistry teacher was doing a flame-test demonstration to show how mineral...salts produce different colored flames such as red, green, and violet...witness the characteristic flame colors as she ignited each...s son noted that one of the flames was going out, so the teacher...
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Vulcan Vent[TM] Passes Both Ember and Flame Tests Required in New Wildland Urban Interface California Building Codes.
Business Wire; 4/1/2009; 700+ words
; ...To Resist the Intrusion of Flames and Embers in High Risk Fire...that resist the intrusion of flame and embers and meet the new...systems resist the intrusion of flames and embers, as called for...the last few years. Because flame and ember intrusion in the...for both the Ember Intrusion ...
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Vulcan Vent Passes California Building Code Ember and Flame Tests
Newspaper article from: Wireless News; 4/6/2009; 419 words
; ...Building Code Ember and Flame Tests Type: News Vulcan Technologies...resist the intrusion of flames and embers, as called...last few years. Because flame and ember intrusion in...are the first vents to test successfully for both the Ember Intrusion Test and the Fire Intrusion ...
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U.S. airlines must replace insulation on 700 planes FAA says metalized Mylar badly fails anti-flame tests under development
Newspaper article from: The Milwaukee Journal Sentinel; 8/12/1999; ; 700+ words
; ...years because it badly fails an anti-flame test that is being developed, the Federal...pass or only narrowly fail the new flame test. Instead, the more limited...Mylar with products that pass the new flame test. The order will take effect...
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Flame test methods get nod from IEC/ISO
Magazine article from: InTech; 2/1/2000; ; 700+ words
; ...ensure standardization of flame test methods, testing protocols...application of state-of-the-art flame calibration procedures...means a user has a standard flame, said Maennling. "The test...jacketed slug under which the flame is moved at specified distances...stable and provide ...
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Jet-fuel hose passes rigid flame test.(Brief Article)
Magazine article from: Design News; 9/6/1999; 700+ words
; ...ablative that can survive a direct flame of 2,000F to shield its jet...hoses. "Thermal stability and flame resistance were the key features...coating for the hoses, which we test under exaggerated service conditions...expose the material to a 2,000F flame for 15 minutes." The fuel...
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Watchdog `missed jet flame test warning'.
Newspaper article from: The Birmingham Post (England); 11/9/1998; 668 words
; ...warning 10 years ago that a test used to determine the flammability...thousands of airliners after tests showed many current types would fail a new fire test. Airlines and aircraft makers...watching how far the resulting flame travelled and how long it took...out within 15 seconds and the ...
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Firm fined for sofas that failed flame test; Dangerous couches went up in smoke.(News)
Newspaper article from: Evening Chronicle (Newcastle, England); 9/9/2008; 700+ words
; ...TAYLOR DANGER sofas shot up in flames when tested by watchdogs. Trading...couches subjected to a match test went up in smoke. John Forrester...beige sofa failed the match test and ignited spontaneously when...fibre manufacturer. This was a test sofa that should never have...material had been ...
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ASTRONAUTS CONDUCT FLAME TESTS.(News)
Newspaper article from: Seattle Post-Intelligencer (Seattle, WA); 1/24/2003; 700+ words
; ...astronauts created tiny, weak balls of flame yesterday in an experiment that could...chamber, and set records for the weakest flame and leanest mixture ever burned in space...Southern California-Los Angeles. The flames, three-eighths of an inch in diameter...magnified through a video camera. One of the ...
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flame test
Book article from: The Columbia Encyclopedia, Sixth Edition
flame test test used in the identification of certain metals...salt of the metal is introduced into a Bunsen burner flame, the metallic ion produces characteristic color in the flame. Some metals and the colors they produce are: barium...
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Flame Analysis
Encyclopedia entry from: Encyclopedia of Espionage, Intelligence, and Security
Flame Analysis Flame tests are useful means of determining...produced by the flame test are compared to known...impurities and sodium. The flame test does not work on all...spectrum when subjected to flame include, but are not...elements may need hotter flames to ...
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flame
Book article from: The Columbia Encyclopedia, Sixth Edition
...reduction zone or reducing flame, since there the supply of...oxidizing, zone. The candle flame is extremely complex. Several...and water being formed). Flames are colored by the introduction...substances, a fact utilized in the flame test for the identification of certain...
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flame photometry
Book article from: A Dictionary of Earth Sciences
...emission spectrometry, but using a flame to excite electrons, rather than...quantitative version of a ‘flame test’. A known weight of sample...portions of the solution are added to a flame, and the strength of emission of...
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bead test
Book article from: The Columbia Encyclopedia, Sixth Edition
bead test test used in the identification...that cannot be identified by a flame test are identified by a bead...to confirm the results of a flame test. The borax bead test is...powdered borax, then heated in the flame of a Bunsen burner until the...
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