Results 11 to 20 of about 2,948,588 (299)
Heavy metals (HMs), among the components of air pollution that is one of the utmost critical concerns our world has faced, are one of the biggest threats to living organisms.
K. Key +3 more
semanticscholar +1 more source
Pollution in the atmosphere, a major problem worldwide, has significantly increased in the last century. Heavy metals have an important component in air pollution.
K. Key, Şemsettin Kulaç
semanticscholar +1 more source
In the woodworking industry, detection of annual rings and location of pith in relation to timber board cross sections, and how these properties vary in the longitudinal direction of boards, is relevant for many purposes such as assessment of shape ...
Tadios Habite +2 more
semanticscholar +1 more source
Radial growth of woody species in the conditions of high anthropogenic load in the city of Krasnoyarsk [PDF]
The dynamics of radial growth of tree stem developing in changing conditions of the city of Krasnoyarsk was studied. For Krasnoyarsk, The problem of creating an environment favorable for people living in Krasnoyarsk is an urgent issue and its integral ...
Yu. V. Klad’ko, V. E. benkova
doaj +1 more source
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison [PDF]
ABSTRACTThe radiocarbon (14C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce large datasets of annual resolution for calibration purposes using small amounts of wood.
Wacker, L +32 more
openaire +9 more sources
Growth Rings in the Stem of Thuja orientalis L.
During the winter dormancy period of 1998-99, the differentiation process of xylem and the formation of annual and pseudo-annual growth rings was studied in sections of the central stem of Thuja orientalis of different age (1-14 year old), starting from ...
G. Schmidt, Gy. Végvári
doaj +1 more source
Radiocarbon in annual coral rings of Florida [PDF]
Radiocarbon measurements on a 175‐year (A.D. 1800 to 1974) growth of the coral Montastrea annularis from The Rocks reef off the Florida Keys reveal the rate of local uptake of fossil fuel CO2 and bomb 14C by surface ocean waters of the Gulf Stream. In the nineteenth century, the pre‐bomb, pre‐industrial Δ14C value of surface ocean waters as seen in ...
Druffel, Ellen M, Linick, Timothy W
openaire +3 more sources
Wood density within Norway spruce stems
We studied the variation in average wood density of annual rings, earlywood density, and latewood density in addition to ring width and latewood percentage within Norway spruce (Picea abies (L.) Karst.) stems from the pith to the bark, and from the ...
Jyske, Tuula +2 more
doaj +1 more source
Occurrence of annual growth rings in Rhizophora mangle in a region with low climate seasonality
The formation of annual growth rings has been confirmed for several mangrove species in the last decade, among which is the Rhizophora mangle. However, the record of annual rings for this species was made in a region with high hydric seasonality, a ...
BRUNNA T. SOUZA +3 more
doaj +1 more source
Excavations of the Eneolithic workshop site for making stone chopping tools the Fofanovo XIII on the western shore of Lake Onega (second half of the IV Millennium calBC) provided representative and faunistic assemblage consisting of relatively well ...
Askeyev Igor V. +5 more
doaj +1 more source

