Results 51 to 60 of about 555,071 (331)
Long-term variations of daily insolation and Quaternary climatic changes
, 1978 Provides all trigonometrical formulas which allow the direct spectral analysis and the computation of those long-term variations of the Earth's orbital elements which are of primary interest for the computation of the insolation.
A. Berger
semanticscholar +1 more source
Data‐driven performance metrics for neural network learning
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri +2 more
wiley +1 more source
Quaternary glacial cycles: Karst processes and the global CO2 budget
Acta Carsologica, 2013 Extensive research has been conducted investigating the relationship between karst processes, carbonate deposition and the global carbon cycle. However, little work has been done looking into the relationship between glaciations, subsequent sea level ...
Erik B. Larson, John E. Mylroie
doaj +1 more source
Journal of Maps, 2019 The sand islands and shore-attached dune fields of south east Queensland form the world’s oldest and largest coastal sand dune system. Here we present updated morphological maps for the dune fields based on topographic expression and geomorphic ...
Nicholas R. Patton +2 more
doaj +1 more source
Journal of Taibah University for Science, 2021 Nanostructure such as quaternary alloy offers an unprecedented opportunity for alloy composition control in a wide range, unavailable with traditional epitaxial film materials.
Asaad T. Al-Douri +4 more
doaj +1 more source
Geologica Acta, 2019 Proboscia barboi and Proboscia curvirostris are two important diatom biostratigraphic markers from the high latitudes of the North Pacific and North Atlantic Oceans, dating back to the Pliocene-Pleistocene time.
J. Andrade +3 more
doaj +1 more source
Journal of Maps, 2021 The Rodoretto Valley (about 25 km2) (Western Alps, NW Italy) shaped in the metamorphic bedrock, covered by Quaternary sediments, is involved in significant deep-seated gravitational slope deformation (DSGSD).
M. Gabriella Forno +3 more
doaj +1 more source
Arithmetic Operations in Multi-Valued Logic
, 2010 This paper presents arithmetic operations like addition, subtraction and multiplications in Modulo-4 arithmetic, and also addition, multiplication in Galois field, using multi-valued logic (MVL).
Gurumurthy, K. S., Patel, Vasundara
core +1 more source
SynOpen, 2022 Construction of all-carbon quaternary centres is an important task in organic synthesis. In spite of the challenges associated with Csp3–Csp3 bond construction in a sterically constrained environment, significant advances have been made in this area ...
Ani Deepthi +2 more
doaj +1 more source
Contributions of Quaternary botany to modern ecology and biogeography
Plant Ecology & Diversity, 2019 Quaternary (last 2.6 million years) botany involves studying plant megafossils (e.g. tree stumps), macrofossils (e.g. seeds, leaves), and microfossils (e.g. pollen, spores) preserved in peat bogs and lake sediments.
H. Birks
semanticscholar +1 more source