Results 101 to 110 of about 3,858,029 (303)

A Practical Method for Investigation of Aerodynamic and Longitudinal Static Stability of Wing-in-Ground Effect

open access: yesInternational Journal of Maritime Technology, 2015
The purpose of this paper is to present a fast, economical and practical method for mathematical modeling of aerodynamic characteristics of rectangular wing-in-ground effect (WIG).
Mohammad Saeed Seif, Mohammad Tavakoli
doaj  

STOL aircraft transient ground effects. Part 1: Fundamental analytical study [PDF]

open access: yes
The first phases of a fundamental analytical study of STOL ground effects were presented. Ground effects were studied in two dimensions to establish the importance of nonlinear effects, to examine transient aspects of ascent and descent near the ground ...
Crowder, J. P.   +2 more
core   +1 more source

Effect of Adiabatic Phonons on Striped and Homogeneous Ground States

open access: yes, 2005
The effects of adiabatic phonons on a spin-fermion model for high T_c cuprates are studied using numerical simulations. In the absence of electron-phonon interactions (EPI), stripes in the ground state are observed for certain dopings while homogeneous ...
Adriana Moreo   +3 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

open access: yesMolecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed   +10 more
wiley   +1 more source

Passive Aeroelastic Control of a Near-Ground Airfoil with a Nonlinear Vibration Absorber

open access: yesAerospace
This study explores the use of a passive control technique to mitigate aeroelastic effects on a wing operating near the ground. An aeroelastic model, based on a typical airfoil section, equipped with a nonlinear tuned vibration absorber (NLTVA), is ...
Kailash Dhital, Benjamin Chouvion
doaj   +1 more source

Nonlinear Control Strategies for an Autonomous Wing-In-Ground-Effect Vehicle. [PDF]

open access: yesSensors (Basel), 2021
Patria D   +3 more
europepmc   +1 more source

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

open access: yesMolecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra   +10 more
wiley   +1 more source

A Physics- and Data-Driven Study on the Ground Effect on the Propulsive Performance of Tandem Flapping Wings

open access: yesAerospace
In this paper, we present a physics- and data-driven study on the ground effect on the propulsive performance of tandem flapping wings. With numerical simulations, the impact of the ground effect on the aerodynamic force, energy consumption, and ...
Ningyu Duan   +4 more
doaj   +1 more source

Dispersion-driven ferromagnetism in a flat-band Hubbard system

open access: yes, 2014
We investigate a mechanism to establish ground-state ferromagnetism in flat-band Hubbard systems based on a kind of {\it order-from-disorder} effect driven by dispersion.
Derzhko, Oleg, Richter, Johannes
core   +1 more source

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