Results 131 to 140 of about 5,635,835 (408)

Causes of the Glacial Period

open access: yesScientific American, 1884
n ...
openaire   +1 more source

Deep water exchanges between the South China Sea and the Pacific since the last glacial period

open access: yes, 2014
Deep ocean circulation is widely considered as one of the important factors for increasing CO2 concentration and decreasing radiocarbon activity (Δ14C) of the atmosphere during the last deglaciation.
S. Wan, Z. Jian
semanticscholar   +1 more source

Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean [PDF]

open access: yes, 2012
The relationships among internally consistent records of summer sea-surface temperature (SSST), winter sea ice (WSI), and diatomaceous stable isotopes were studied across seven terminations over the last 660 ka in sedimentary cores from ODP sites 1093 ...
Bianchi, C.   +5 more
core   +1 more source

Ultra‐Shallow Flat Heat Waves on Low Thermal Conductivity Flexible Polyimide Substrate for Millisecond Thermal Analysis of Materials and Bioelectronic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
An electronic system is presented consisting of a silver thin‐film electrode on a polyimide substrate working both as a heating element and a resistive temperature sensor, generating millisecond heat pulses with very fast heating and cooling rates and a flat peak temperature with a tunable duration.
Bahman K. Boroujeni   +5 more
wiley   +1 more source

Drying Meat Today as During the Late Glacial Period

open access: yesEXARC Journal, 2013
Western Europe during the Upper Palaeolithic, between 42,000 years ago and 12,000 years ago, was sparsely wooded, but later there was an increase in the percentage of specimens of birch, abies, fagus and tilia hosting wildlife similar to that already ...
Edoardo Ratti and Valeria Cosma   +1 more
doaj  

Why could ice ages be unpredictable? [PDF]

open access: yes, 2013
It is commonly accepted that the variations of Earth's orbit and obliquity control the timing of Pleistocene glacial-interglacial cycles. Evidence comes from power spectrum analysis of palaeoclimate records and from inspection of the timing of glacial and deglacial transitions. However, we do not know how tight this control is.
arxiv   +1 more source

The Astronomical Theory of a Glacial Period [PDF]

open access: yesNature, 1896
MR. CULVERWELL has pointed out to me that I am in error when I include him among those writers who think that the problem of glacial periods is to be solved by considering only the varying amounts of sun-heat at different epochs. On referring to his paper, which I had not at hand when I wrote, I find that this is the case, and that he is careful to ...
openaire   +3 more sources

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong   +11 more
wiley   +1 more source

Enhanced Mechanical Properties of Injectable Chitosan–Guar Gum Hydrogel Reinforced with Bacterial Cellulose Nanofibers for Tissue Engineering Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the development and characterization of injectable nanocomposite hydrogels based on N‐succinyl chitosan, oxidized guar gum, and bacterial cellulose nanofibers. Emphasizing enhanced mechanical properties and biocompatibility, the hydrogels exhibit fast gelation, improved structural integrity, and reduced swelling. Their potential for
Raimundo Nonato Fernandes Moreira Filho   +8 more
wiley   +1 more source

Climate deteriorations and Neanderthal demise in interior Iberia

open access: yesScientific Reports, 2018
Time and circumstances for the disappearance of Neanderthals and its relationship with the advent of Modern Humans are not yet sufficiently resolved, especially in case of the Iberian Peninsula.
D. Wolf   +12 more
doaj   +1 more source

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