Belowground annual ring
growth coordinates with aboveground phenology and timing of carbon storage in two tallgrass prairie forb species.
Gluing of star-sawn triangular profiles into form-stable products with vertical annual rings
Observations of annual rings
on scales and otoliths were conducted by using stereo microscope (Leica MZ75, Germany) and photographs of scales and otoliths were taken and saved (Leica DFC300 FX).
Aydin and Sen (2002) reported that they observed the most clear annual rings
on otoliths in their study on age relationships between right and left sides of the same bony structures of C.
At a level of 95%, the differences were revealed between the shell heights of the clams collected from the northwestern and southern coasts (shells with 4 and 5 annual rings
), clams sampled from the northwestern and eastern coasts (shells with 4 and 5 annual rings
), and clams sampled from the northern and eastern coasts (shells with 3 annual rings
The annual ring
properties of the wood samples seem to be an insignificant factor affecting the colour changes during the thermal compressing.
We counted and measured the annual rings
of each cored tree using a compound dissecting microscope and a Velmex stage micrometer attached to a Metronics QC10 digital display and a computer running MeasureJ2X software (VoorTech.com, 2008) in order to determine age structure and growth patterns of stands at each study site.
Using a Velmex [R] micrometer (precision 0.005 mm) under a binocular microscope at 40X to count annual rings
, we determined that the individual's oldest living stem was at least 370 years old.
"Pull away the seaweed and the annual rings
of the tree trunks are still clearly visible.
The last few cell rows of libriform wood fibres at the border of the annual rings
are more strongly lignified than the weakly lignified libriform wood fibres of the early wood.
, pith rays, arrangement of wood fibres and so on.
In his research, Muscheler worked to reconstruct previous changes in solar activity by studying how cosmogenic isotopes, for example of beryllium-10 and carbon-14, have been stored in both ice cores and annual rings