Results 251 to 260 of about 2,948,588 (299)
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ANNUAL RINGS IN HEMLOCKS AND THEIR RELATION TO ENVIRONMENTAL FACTORS

American Journal of Botany, 1940
THE HURRICANE of September 21, 1938, uprooted a grove of hemlocks, Tsuga canadensis (L.) Carr., in the Connecticut Arboretum at Connecticut College, thus providing material for a study of their annual growth rings. There were originally 130 trees in the grove, oily 18 of which remained standing after the storm.
G. S. Avery, H. B. Creighton, C. W. Hock
openaire   +1 more source

Molt in the Annual Cycle of Ring-Necked Ducks

The Condor, 1995
Birds have increased energy and nutrient requirements during molt. Estimation of these costs has proven difficult; consequently, the nutritional significance of molt relative to other annual cycle events remains unclear. Here we describe patterns of molt for Ring-necked Ducks (Aythya collaris) throughout their annual cycle.
Hohman, William L., Crawford, Richard D.
openaire   +1 more source

Stiffening phenomena in annual rings of coniferous wood

Wood Science and Technology, 1984
The structure of coniferous wood is characterized by pronounced differences in density between earlywood and latewood. This could result in disadvantages in wood strength especially against bending. A summary of the observations in this paper leads to the following hypothesis: Coniferous trees meet this danger by forming numerous stiffenings especially
openaire   +1 more source

The usability of Cupressus arizonica annual rings in monitoring the changes in heavy metal concentration in air

Environmental science and pollution research international, 2021
A. Cesur   +8 more
semanticscholar   +1 more source

The annual-ring sign of calculus in the setting of horseshoe kidney

The American Journal of the Medical Sciences, 2023
Xiao, Han, Mingxing, Han, Jun, Li
openaire   +2 more sources

Annual, semi-annual and solar cycle variations in Sq, and ring current effects

Exploration Geophysics, 1986
The difference of H at two magnetic observatories on the same meridian, but having latitudes equatorwards and polewards of the latitude of the Sq focus, yields a measure of Sq intensity largely free from disturbance. This is because the Sq variations are of opposite sign at the two observatories whereas the disturbance variations, having the same sign ...
openaire   +1 more source

Vessel feature changes as a tool for detecting annual rings in tropical trees

Trees, 2014
S. Ohashi   +6 more
semanticscholar   +1 more source

An Algorithm Based on DAF-Net++ Model for Wood Annual Rings Segmentation

Electronics (Switzerland), 2023
Zhedong Ge   +2 more
exaly  

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