Results 161 to 170 of about 254,554 (213)
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Airplane Spruce

Journal of Fluids Engineering, 1930
Abstract The author seeks to prove that wood is a better material than metal in airplane construction where strength is required, airplane spruce being the material against which all other materials are checked for suitability. The paper indicates that airplane spruce gives the least possible weight with the greatest possible strength ...
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Ancient Blue Spruce Hiding Among Engelmann Spruce

Results of research in forest health and forest futures in Utah Key Results 1. Ancient trees: Old-growth blue and Engelmann spruce (>300 years, Fig. 1) were scattered throughout closed-canopy stands. 2. Drought stress predominates: Higher precipitation and lower maximum temperatures improve growth — even in a forest at 10,000 ft. 3.
Lutz, James A., Birch, Joseph D.
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Improved performance of the eastern spruce budworm on black spruce as warming temperatures disrupt phenological defences

Global Change Biology, 2021
Bastien Bellemin-Noël   +2 more
exaly  

Polyembryony in Red Spruce

Science, 1931
H I, Baldwin, W E, Percival
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Spruce

2007
Jean Bousquet   +5 more
openaire   +1 more source

Spruce Grouse

2021
D. A. Boag, D. T. McKinnon
openaire   +1 more source

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