Results 61 to 70 of about 815,050 (359)

A Low‐Cost Curvature Detection Method for an Untethered Biped Pipeline Climbing Robot with Energy‐Efficient Strategy

open access: yesAdvanced Robotics Research, EarlyView.
A low‐cost pipeline curvature detection method has been proposed for an untethered biped pipeline surface climbing robot (BPCR) system with a five‐degree‐of freedom structure. The BPCR features adaptive vacuum suction cups equipped with multiple laser sensors on the suction modules to detect the curvature of various surfaces.
Zikang Li   +3 more
wiley   +1 more source

Radiation diffraction calculation program /DIFF2/ [PDF]

open access: yes, 1971
Computer program computes maximum possible strength of interference pattern sent from high altitude tracking and data relay satellite to low altitude user ...

core   +1 more source

Respiratory parameters at varied altitudes in intermittent mining work [PDF]

open access: yes, 2017
Objectives: Workers in the mining industry in altitude are subjected to several risk factors, e.g., airborne silica and low barometric pressure. The aim of this study has been to assess the risks for this work category, evaluating single risk factors as ...
Bacaloni, Alessandro   +4 more
core   +2 more sources

Integrative Multi‐Omics and Routine Blood Analysis Using Deep Learning: Cost‐Effective Early Prediction of Chronic Disease Risks

open access: yesAdvanced Science, EarlyView.
Omicsformer, a deep learning model, integrates multi‐omics and routine blood data to accurately predict risks for nine chronic diseases, including cancer and cardiovascular conditions. Validated using large scale clinical data, it reveals early risk trajectories, advancing personalized medicine and offering a cost‐effective, community‐based solution ...
Zhibin Dong   +20 more
wiley   +1 more source

Clarification on altitude training [PDF]

open access: yesExperimental Physiology, 2016
We congratulate our colleagues for their careful reading of our work in their Hot Topic Review 'Does 'altitude training' increase exercise performance in elite athletes?' (Lundby & Robach 2016) but strongly believe that they have a selective appreciation of the available literature that requires clarification.
Millet, Grégoire   +3 more
openaire   +5 more sources

Serrated Leaf‐Like N‐Doped Copper Sulfide Enabling Bifunctional Oxygen Reduction/Evolution via Dual‐Mode Cathode Reactions for High Energy Density and Cycle Stability in Zinc–Air Batteries

open access: yesAdvanced Science, EarlyView.
A serrated leaf‐like nitrogen‐doped copper sulfide (N‐CuS) cathode with hybridized N 2p – S 3p orbitals is presented, mesopores for oxygen transport, and a five times larger electrochemical active surface area than Cu. In aerobic conditions, a zinc–air battery with N‐CuS achieves 788 mAh g⁻¹ and 916 Wh kg⁻¹, outperforming Pt/C+RuO₂.
Do Hwan Jung   +8 more
wiley   +1 more source

Effects of Hyperbaric Hypoxia on Some Enzyme Systems in the Mammalian Liver [PDF]

open access: yes, 1978
The metabolic effects of hypobaric hypoxic stress on the mammalian liver were studied. The lactate dehydrogenase (LDH) and succinate dehydrogenase (SDH) activity of mouse liver homogenates were measured after exposure to an equivalent altitude of 36,000 ...
Baeyens, Dennis A., Meier, M. J.
core   +2 more sources

The radiation environment in a Low Earth Orbit: the case of BeppoSAX

open access: yes, 2014
Low-inclination, low altitude Earth orbits (LEO) are of increasing importance for astrophysical satellites, due to their low background environment. Here, the South Atlantic Anomaly (SAA) is the region with the highest amount of radiation.
Campana, R.   +4 more
core   +1 more source

Hypoxic preacclimatization combining intermittent hypoxia exposure with physical exercise significantly promotes the tolerance to acute hypoxia

open access: yesFrontiers in Physiology
Background: Both hypoxia exposure and physical exercise before ascending have been proved to promote high altitude acclimatization, whether the combination of these two methods can bring about a better effect remains uncertain.
Jiaxin Xie   +9 more
doaj   +1 more source

On the Survival of High-Altitude Open Clusters within the Milky Way Galaxy Tides [PDF]

open access: yes, 2016
It is a common assumption that high-altitude open clusters live longer compared with clusters moving close to the Galactic plane. This is because at high altitudes, open clusters are far from the disruptive effects of in-plane substructures, such as spiral arms, molecular clouds and the bar.
arxiv   +1 more source

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