Results 51 to 60 of about 707,618 (318)

Above- and below-ground competition in high and low irradiance: tree seedling responses to a competing liana Byttneria grandifolia

open access: yes, 2008
: In tropical forests, trees compete not only with other trees, but also with lianas, which may limit tree growth and regeneration. Liana effects may depend on the availability of above- and below-ground resources and differ between tree species.
Bongers, F   +7 more
core   +1 more source

Ground effect analysis of a Formula SAE car [PDF]

open access: yes, 2023
openThis thesis aims to investigate the ground effect behavior of the Formula SAE car, SGe-06, a competitive vehicle of the University of Padua during the academic year 2022/2023.
MINTO, ANTONIO
core  

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Effect of near-fault ground motion with pulse signal on dynamic response of dam-reservoir-foundation systems

open access: yesGrađevinar, 2023
This paper aimed to determine the effects of a pulse signal of near-fault ground motion on the dynamic response of gravity dams, including dam-reservoir-foundation interaction, using different reservoir modelling approaches such as Westergaard, Lagrange,
Ahmet Can Altunisik   +2 more
doaj   +1 more source

Effects of Earthquakes on Ground (II)

open access: yesJournal of Physics of the Earth, 1971
An empirical formula for the hypocentral distance of damaged railroad subgrade in earthquakes is given. Ground cracks caused by earthquakes are classified into those of tensile type, normal-fault type, and strike-slip type. After description of soil-liquefaction phenomena in earthquakes, the mechanism of spontaneous liquefaction of soils is reviewed ...
openaire   +3 more sources

Aircraft Wake Vortex Decay in Ground Proximity : Physical Mechanisms and Artificial Enhancement

open access: yes, 2012
Aircraft wake vortex evolution in ground proximity is investigated numerically with large eddy simulations (LES). The simulations are performed with different modifications of the ground surface in order to trigger rapid vortex decay or to simulate the ...
Anton Stephan   +5 more
core   +1 more source

Operational Parameter Study of Aircraft Dynamics on the Ground [PDF]

open access: yes, 2009
The dynamics of passenger aircraft on the ground are influenced by the nonlinear characteristics of several components, including geometric nonlinearities, the aerody- namics and interactions at the tyre-ground interface.
Rankin, AJ   +3 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Ground-motion predictive equations for low-magnitude earthquakes in the Campania–Lucania area, Southern Italy

open access: yes, 2010
A key aspect of ground-shaking map calculation is represented by ground-motion predictive equations (GMPEs). In fact, ground-shaking maps obtained soon after an earthquake are calculated by integrating observed data and ground-motion estimates from GMPEs
A Emolo   +8 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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