The lake lies on Pinedale moraine, and it contains 170 cm of organic sediments that overlie 10 cm of silty clay. The oldest of seven 14C dates from the organic sediment is 9,490 卤 150 yr B.P., a minimum estimate of the time since Middle Pinedale ice receded from the lake basin....
aroom transmitters have an operating range of 0-70 and the duct. the transmitter board should not be mounted where temperatures will exceed these values. see the connection diagram for more details. 室发射机有操作范围的0-70和输送管。 不应该登上发射机板温度将超出这些价值的地方。 看接线图以获...
A long-standing goal in neuroscience is to understand how a circuit’s form influences its function. Here, we reconstruct and analyze a synaptic wiring diagram of the larval zebrafish brainstem to predict key functional properties and validate them through comparison with physiological data. We identi...
differences of dimensions, orders of magnitude and positive and negative directions of the above evaluation indexes, and in order to eliminate such possible impacts on data analysis, this study uses the range method and the hierarchical assignment method to standardize the original data of each index...
(a) South American Amazonia basin: This region is confined between Amazon River in the east to the foothills of the Andes in the west and Orinoco river basin in the north to Mardira River in the south. ADVERTISEMENTS: (b) Equatorial Africa: ...
Meteorological drought is defined based on the duration of the dry period and the degree of dryness in comparison to an average. Hydrological drought is associated with a shortfall of precipitation on surface or subsurface water supply, and is often defined on a watershed or river basin scale. ...
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The values of NH4+-N, TN and TP were relatively small in wet season. The average of TN:TP (mass ratio) in West Tiaoxi River Basin was 46, with a range from 2 to 482 during monitoring period. About 66.7% of water samples were in the state of the phosphorus limitation, with only ...