Results 11 to 20 of about 953 (168)

Validation of two self-reported physical activity instruments against accelerometer data in patients undergoing lung cancer surgery

open access: yesPhysiotherapy Theory and Practice, 2021
Introduction Finding ways of identifying patients with low levels of physical activity after lung cancer surgery would be beneficial when planning and providing interventions aimed at increasing physical activity.
M. Jonsson   +3 more
semanticscholar   +1 more source

Tracking coarse sediment in an Alpine subglacial channel using radio-tagged particles

open access: yesJournal of Glaciology, 2023
We present a method for tracking radio-tagged pebbles and cobbles through subglacial meltwater channels under shallow temperate glaciers. Natural particles tagged with active radio transmitters were injected directly into a large subglacial channel 300 m
Matt Jenkin   +6 more
doaj   +1 more source

Hot water drilling in the firn layer of Greenland's percolation zone

open access: yesAnnals of Glaciology, 2021
The intermixed thermal and structural framework of cold firn, water-saturated firn and ice layers in Greenland's percolation zone can be challenging to penetrate with core drills.
Neil Humphrey   +2 more
doaj   +1 more source

Introducing G.RE.T.A. – an innovative geo-resistivimeter for long-term monitoring of earthen dams and unstable slopes

open access: yesProceedings of the 2020 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, 2020
Nowadays there is an increasing interest in introducing techniques capable of monitoring the internal conditions of embankments and slopes in order to develop early warning alarm systems.
G. Tresoldi   +3 more
semanticscholar   +1 more source

The Autonomous Pinger Unit of the Acoustic Navigation Network in EnEx-RANGE: an autonomous in-ice melting probe with acoustic instrumentation

open access: yesAnnals of Glaciology, 2021
The Autonomous Pinger Unit (APU) is an electro-thermal drill with acoustic instrumentation developed for the project EnEx-RANGE in view of a future space mission for the sub-surface exploration of Saturn's moon Enceladus.
Lars Steffen Weinstock   +6 more
doaj   +1 more source

The BEAMISH hot water drill system and its use on the Rutford Ice Stream, Antarctica

open access: yesAnnals of Glaciology, 2021
During the 2018/19 Antarctic field season, the British Antarctic Survey (BAS) Basal conditions on Rutford Ice Stream: BEd Access, Monitoring and Ice Sheet History’ (BEAMISH) project drilled three holes through the Rutford Ice Stream, West Antarctica.
Paul G. D. Anker   +3 more
doaj   +1 more source

Characterising englacial R-channels using artificial moulins

open access: yesJournal of Glaciology, 2022
The englacial and subglacial drainage systems exert key controls on glacier dynamics. However, due to their inaccessibility, they are still only poorly understood and more detailed observations are important, particularly to validate and tune physical ...
Annegret Pohle   +3 more
doaj   +1 more source

Determining the evolution of an alpine glacier drainage system by solving inverse problems

open access: yesJournal of Glaciology, 2021
Our understanding of the subglacial drainage system has improved markedly over the last decades due to field observations and numerical modelling. However, integrating data into increasingly complex numerical models remain challenging.
Inigo Irarrazaval   +4 more
doaj   +1 more source

A novel approach to process brittle ice for continuous flow analysis of stable water isotopes

open access: yesJournal of Glaciology, 2018
Brittle ice, which occurs in all intermediate-depth and deep ice cores retrieved from high-latitude regions, presents a challenge for high-resolution measurements of water isotopes, gases, ions and other quantities conducted with continuous flow analysis
REBECCA L. PYNE   +10 more
doaj   +1 more source

Antarctic subglacial drilling rig: Part III. Drilling auxiliaries and environmental measures

open access: yesAnnals of Glaciology, 2021
The Antarctic subglacial drilling rig (ASDR) is designed to recover 105 mm-diameter ice cores up to 1400 m depth and 41.5 mm-diameter bedrock cores up to 2 m in length. In order to ensure safe and convenient drilling, drilling auxiliaries are designed to
Xiaopeng Fan   +20 more
doaj   +1 more source

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