Results 121 to 130 of about 848,646 (303)
Navigational utility of high-precision radio interferometer for Galileo's approach to Jupiter [PDF]
The effect of very long baseline interferometry (VLBI) measurements of 2-nanoradian (nrad) accuracy has been studied for use in Galileo's approach to Jupiter's moon Io.
Folkner, W. M.
core +1 more source
Deep Underground Science and Engineering, EarlyView.Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang +4 more
wiley +1 more source
High altitude polycythemia and its maladaptive mechanisms: an updated review
Frontiers in MedicineHigh altitude polycythemia is a maladaptation of highlanders exposed to hypoxic environment, leading to high blood viscosity and severe cardiorespiratory dysfunction.
Shijie Tang +14 more
doaj +1 more source
Long and short arc altitude determination for GEOS-C [PDF]
The accuracy with which the GEOS-C altitude may be estimated over long (7 day) and short (40 minute) orbital arcs is investigated. Over the long are excellent agreement was attained between a simulation of the orbit determination process and a covariance
Argentiero, P., Kahn, W. D., Koch, D.
core +1 more source
Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley +1 more source
EcoEnergy, EarlyView.Reverse‐bias stability in monolithic perovskite/silicon tandem solar cells requires a silicon–current‐limited regime. When the perovskite current exceeds the silicon current, the reverse voltage is mainly borne by the silicon cell, reducing perovskite stress.
Xuechun Zhang +6 more
wiley +1 more source
The effects of different rates of ascent on the incidence of altitude decompression sickness [PDF]
The effect of different rates of ascent on the incidence of altitude decompression sickness (DCS) was analyzed by a retrospective study on 14,123 man-flights involving direct ascent up to 38,000 ft altitude.
Kumar, K. V., Waligora, James M.
core +1 more source
Medical Clinics of North America, 1992 Altitude illness is common and may result in major disruption of travel plans. Visitors to altitude need to be aware of the various health problems they might encounter and how they may be prevented. Self-diagnosis and treatment is the norm in many remote locations.
openaire +2 more sources
Ecography, EarlyView.Projected warming and drying raise concerns about the resilience of stress‐adapted ecosystems, including the Brazilian Campo Rupestre, an exceptionally biodiverse mountaintop grassland mosaic on ancient, nutrient‐poor substrates. Here, we combine field‐based trait data and long‐term remote sensing to assess the functional structure and temporal ...
Renata Maia +5 more
wiley +1 more source