Results 151 to 160 of about 1,969,946 (307)

Primary production in polar waters: relation to nutrient availability

open access: yes, 1991
Temperature, light and dissolved nutrients are considered the “master” abiotic properties controlling primary production in the ocean. Each of these properties, in turn, is influenced by water column stability Sustained research over the past several ...
Harrison, W. G., Cota, G. F.
core   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

Polar bear predation on ringed seals in the fast-ice of Hornsund, Svalbard

open access: yes, 1986
Polar bear hunting success on ringed seals in subnivean lairs and basking on the fast ice, was studied in Hornsund, Svalbard. A few bears were observed while actually hunting, but in most cases bear tracks were followed by snowmobile to determine the ...
Gjertz, Ian, Lydersen, Christian
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Polar vortex weakening and its impact on surface temperature in recent decades

open access: yes
The stratospheric polar vortex (SPV) weakening is linked to surface circulation changes. This study employs statistical analysis using reanalysis data to compare the anomalous SPV behaviour in the Northern (NH) and Southern (SH) hemispheres and its ...
Kim, Seong-Joong, Choi, Hyesun
core   +1 more source

Review of Into the ice: the history of Norway and the polar regions, by Einar-Arne Drivenes & Harald Dag Jølle

open access: yes, 2008
How timely for a deep and engaging analysis of Norway’s polar history to be available in English, as climate change, global warming and competition for scarce resources are pressing issues among academics, in global society and in the far ...
Ingebritsen, Christine
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

BOOK REVIEW: Review of Tourism and change in polar regions: climate, environment and experience and Cruise tourism in polar regions: promoting environmental and social sustainability?

open access: yes, 2011
These two edited volumes, which cover much of the same ground, both begin from a common premise: polar tourism, as its been experienced by wealthy travellers for over a century, has a very definite shelf life.
P.J. Capelotti, Capelotti, P. J.
core   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

open access: yesAdvanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti   +4 more
wiley   +1 more source

Review of Scott’s last biscuit: the literature of polar exploration, by Sarah Moss

open access: yes, 2007
Fifty years ago, George Bass revolutionized maritime archaeology with the observation that it was far simpler to train an archaeologist to be a scuba diver than it was to turn a scuba diver into an underwater archaeologist.
Capelotti, P. J.
core   +1 more source

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