Results 171 to 180 of about 108,603 (294)

Inverse square law for gravity? [PDF]

Nature, 1976
openaire   +1 more source

Large Deformation Pile‐soil Interaction Under Lateral Vehicle Impact Using Hybrid SPH+FEM and EFG+FEM Models

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study presents large deformation computational methods to simulate lateral vehicular impacts on steel piles in granular soil. Soil‐mounted longitudinal barrier systems rely on energy dissipation in both the piles and the surrounding soil to safely redirect errant vehicles, so dynamic pile‐soil interaction is important for design ...
Tewodros Y. Yosef, Chen Fang, Seunghee Kim, Ronald K. Faller, Qusai A. Alomari, Mojtaba Atash Bahar, Gnyarienn S. Kumar   +6 more
wiley   +1 more source

Back to the Mission. Revisiting Slack in Nonprofits and Introducing Tappable Slack

Nonprofit Management and Leadership, EarlyView.
ABSTRACT This article contributes to and develops the previous literature on excess resources (“slack”) in nonprofit organizations through a conceptual analysis of the implications that the organizational distinctiveness of nonprofits carries for our understanding of slack in these organizations.
Marta Reuter, Ebba Henrekson, Filip Wijkström   +2 more
wiley   +1 more source

Editorial: Impact of vestibular dysfunction studies on space flight health challenges. [PDF]

Front Neurol
Lackner JR, Denise P, Wood SJ.
europepmc   +1 more source

On the Convergence of Conjugate Gradient and GMRES Algorithms in the Forward Backward Sweep Method for Optimal Control

Optimal Control Applications and Methods, EarlyView.
Optimal control combines state and adjoint equations, which yield the state (x$$ x $$) and adjoint (lambda) variables as a function of the control variables (u$$ u $$). This structure allows us to design strategies for iteratively updating the control variable, based on conjugate gradient (CG) or GMRES algorithms.
N. Armengou‐Riera, N. Rabiei, A. Bijalwan, A. Rodríguez‐Ferran, J. J. Muñoz   +4 more
wiley   +1 more source

Adaptive coupling strategy for joint inversions that use petrophysical information as constraints [PDF]

, 2011
Chen, Jin, Heincke, Björn, Hobbs, Richard W., Jegen, Marion, Moorkamp, Max   +4 more
core  

Impact of Al3+ Concentration on Montmorillonite Sedimentation: Insights Into Particle Size Behavior

ChemistryOpen, EarlyView.
The current research essentially focuses on the coagulation and sedimentation characteristics of particles with two distinct particle‐size compositions. The DLVO theory confirms that under the influence of aluminum ions, the coarse and fine particle sampleS of montmorillonite essentially possess the effect of eliminating or weakening the “barrier ...
Hanyu Zhao, Lijun Liu, Xue Yuan, Qingtao Pang, Lei Yao, Bo Gao, Yihong Li, Liang Han, Yizhe Yang, Wei Yu, Zhen Li, Yuexian Yu, Jinzhou Qu   +12 more
wiley   +1 more source

Separation of the field source and characterization of the deep and shallow tectonics of the northwestern margin of the Sichuan-Yunnan rhombic massif. [PDF]

Sci Rep
Qinhong L, Guiju W, Yufei X, Rui Z.
europepmc   +1 more source

Nanoemulsions for Skin Delivery of Essential Oils: A Systematic Review

Phytotherapy Research, EarlyView.
ABSTRACT Essential oils (EOs) are recognized for their multiple health benefits. However, their high volatility, low stability, and limited water solubility limit their effective application. This systematic review aims to assess the use of nanoemulsions as delivery systems for the topical administration of EOs, highlighting their efficacy, safety, and
Thais Leticia Moreira da Silva, Anna Claudia Morais de Oliveira Capote, Flávio Luís Beltrame, Priscileila Colerato Ferrari   +3 more
wiley   +1 more source

Landing adaptations in individuals with chronic ankle instability. [PDF]

Front Sports Act Living
Yan Z, Wang Q, Zhu X.
europepmc   +1 more source