Results 71 to 80 of about 519,551 (181)

Late human occupation in the surroundings of Culebra Bay: Analysis based on new dates of 14C for some ceramic types in the Southern Sector of Greater Nicoya

open access: yes, 2022
In the last 25 years, numerous archaeological investigations carried out in the surroundings of Culebra Bay, located in the Southern Sector of Greater Nicoya, have achieved a significant amount of 14C dating that have complemented the chronological estimates assigned to the sites through the ceramics. In light of the radiometric data, it is possible to
openaire   +1 more source

Evolution of Martian volatiles [PDF]

open access: yes, 1996
Topics covered include: early Mars volatile inventory, evolution through time, geological influences, present atmospheric properties, soils, exobiology, polar volatiles, and seasonal and diurnal cycles.sponsored by Lunar and Planetary Institute.edited by

core  

On the shock transition, the hydraulic jump, and vortex breakdown [PDF]

open access: yes, 1967
The normal shock, hydraulic jump, and vortex breakdown have a common feature: they are all marked by a transition from a supercritical to a subcritical flow state.
Hsieh, Din-Yu
core  

DOE/NASA wind turbine data acquisition system. Part 4: Operations and maintenance manual (Plumbrook Station) [PDF]

open access: yes
Preventive maintenance, calibration procedures, system verification, system operating procedures, systems software fundamentals, data base (program files), and patchboard layout are ...
Prenger, S., Tatman, T.
core   +1 more source

Ultrasonic Cavitation in Liquid Helium [PDF]

open access: yes, 1968
Based on the new interpretation that rotons behave like tiny quantized vortex rings, a theory is constructed to give a complete picture of ultrasonic cavitation in liquid helium.
Hsieh, Din-Yu
core  

ePosters Virtual

open access: yes
European Journal of Neurology, Volume 32, Issue S1, June 2025.
wiley   +1 more source

Carbon release from submarine seeps at the Costa Rica fore arc: implications for the volatile cycle at the Central America convergent margin [PDF]

open access: yes, 2010
We report total dissolved inorganic carbon (DIC) abundances and isotope ratios, as well as helium isotope ratios (3He/4He), of cold seep fluids sampled at the Costa Rica fore arc in order to evaluate the extent of carbon loss from the submarine segment ...
Alt   +98 more
core   +1 more source

ePoster

open access: yes
European Journal of Neurology, Volume 32, Issue S1, June 2025.
wiley   +1 more source

23rd Congress of the European Hematology Association Stockholm, Sweden, June 14‐17, 2018

open access: yes, 2018
HemaSphere, Volume 2, Issue S1, Page 1-1113, June 2018.
wiley   +1 more source

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