Results 81 to 90 of about 12,118 (294)

New approach to tidal stream energy analysis at sites in the English Channel

open access: yes, 2009
Tidal stream power generation offers the prospect of predictable, low-CO2power at a number of locations around the UK and the world. Previousassessments of tidal energy resources have taken the form of desk studiesbased on simplified navigational data ...
Blunden, L.S., Blunden, L S
core  

SDPR–STK38 axis controls the proliferation–differentiation balance in alveolar type II cells

open access: yesAnimal Models and Experimental Medicine, EarlyView.
The present study identifies SDPR as a pivotal regulator orchestrating the balance between proliferation and differentiation in alveolar type II (AT2) cells. In SDPR+/+ cells, SDPR binds to and inhibits STK38 activity, thereby sustaining GSK‐3β signaling functionality to promote cyclin D1 degradation and maintain cell cycle homeostasis.
Jie Wang   +6 more
wiley   +1 more source

CALCULATION AND MAPPING OF TIDAL LUNAR IMPACTS ON THE EARTH SPHEROID

open access: yesInterCarto. InterGIS, 2017
The major method used in this study is processing of data arrays in order to obtain statistical data. Statistical methods of research use the parameter of frequency to characterize the recurrence of events in time and space.
O. V. Zenkin
doaj   +1 more source

The effect of gravitational tidal forces on renormalized quantum fields

open access: yes, 2012
The effect of gravitational tidal forces on renormalized quantum fields propagating in curved spacetime is investigated and a generalisation of the optical the- orem to curved spacetime is proved.
Timothy Hollowood, Graham Shore
core   +1 more source

Assessment of Dependency of Unsteady Onset Flow and Resultant Tidal Turbine Fatigue Loads on Measurement Position at a Tidal Site

open access: yes, 2021
This work determines the variation in the fatigue loading on a tidal turbine at two depth positions and two different locations within a site. Site data were obtained at the European Marine Energy Centre, EMEC, test facility in Scotland, which has been ...
Tim Stallard   +3 more
core   +1 more source

Regional gas exchange evaluation during ex vivo lung perfusion in a swine model of localized lung dysfunction

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Abstract Background Ex vivo lung perfusion (EVLP) allows the evaluation of lungs that do not meet standard transplantation criteria. Current procedures do not permit the identification of regional functional deficits. We investigated the feasibility of assessing lobar gas exchange during EVLP in a swine model.
Giulia Maria Ruggeri   +16 more
wiley   +1 more source

Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar   +5 more
wiley   +1 more source

Patterns and wavelet coherence analysis of tidal dynamics and chlorophyll a concentration [PDF]

open access: yesGlobal Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: Understanding the correlation between tidal rhythms and marine organism behavior is crucial. This extends beyond fluctuations in chlorophyll a concentrations and includes various biological processes in the marine environment ...
M.N. Hidayat   +4 more
doaj   +1 more source

Absolute Axes and Tidal Forces [PDF]

open access: yesNature, 1947
IT has been shown1 that at any point of space-time, whether empty or occupied by matter, it is possible to define a system of absolute axial directions, independently of the Ricci tensor, and, in general, uniquely. The method makes use of a tensor which has since been proved by Ruse2 to be identical with the conformal curvature tensor of Weyl.
openaire   +1 more source

Three‐dimensional geometric morphometric analysis of diaphragmatic dome motion in COPD patients

open access: yesThe Anatomical Record, EarlyView.
Abstract Diaphragmatic dysfunction is a hallmark of chronic obstructive pulmonary disease (COPD), especially in emphysema, where hyperinflation alters diaphragm geometry and impairs inspiratory mechanics. However, quantitative three‐dimensional (3D) assessments of diaphragmatic dome shape and motion across COPD phenotypes are limited.
José M. López‐Rey   +5 more
wiley   +1 more source

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