Results 31 to 40 of about 1,121,804 (297)

Asymmetry- and Viscosity-Regulated Atomization of Laminar Impinging Microjets: Morphology Map, Modal Dynamics, and Droplet Statistics

open access: yesMicromachines
Despite decades of studies on symmetric impinging-jet atomization, the combined role of controlled pre-impingement asymmetry and viscosity in setting the instability pathways and droplet statistics of laminar microjets remains insufficiently quantified ...
Xiaoyu Tan   +3 more
doaj   +1 more source

Crossover from quasi-static to dense flow regime in compressed frictional granular media [PDF]

open access: yes, 2013
We investigate the evolution of multi-scale mechanical properties towards the macroscopic mechanical instability in frictional granular media under multiaxial compressive loading.
Amitrano, David   +2 more
core   +5 more sources

Journey of an intruder through the fluidisation and jamming transitions of a dense granular media

open access: yes, 2009
We study experimentally the motion of an intruder dragged into an amorphous monolayer of horizontally vibrated grains at high packing fractions. This motion exhibits two transitions.
Candelier, Raphael, Dauchot, Olivier
core   +3 more sources

A symmetry-based length model for characterizing the hypersonic boundary layer transition on a slender cone at moderate incidence

open access: yesAdvances in Aerodynamics, 2022
The hypersonic boundary layer (HBL) transition on a slender cone at moderate incidence is studied via a symmetry-based length model: the SED-SL model. The SED-SL specifies an analytic stress length function (which defines the eddy viscosity) describing a
Wei-Tao Bi   +3 more
doaj   +1 more source

A rate- and state-dependent ductile flow law of polycrystalline halite under large shear strain and implications for transition to brittle deformation [PDF]

open access: yes, 2010
We have conducted double-shear biaxial deformation experiments in layers of NaCl within its fully-plastic (FP) regime up to large shear strains (γ < 50) with velocity steps.
Noda, Hiroyuki, Shimamoto, Toshihiko
core   +1 more source

Non-linear Relationship between Income and Energy Intensity in Selected Countries of MENA Region with an Emphasis on the Role of Financial Development and Openness [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران, 2015
This paper investigates the effects of income per capita, financial development and openness on energy intensity for MENA selected countries for the period of 1980 - 2011 applying the panel smooth transition regression model.
Mahdi Taghavi   +3 more
doaj   +1 more source

On the Link between the Langevin Equation and the Coagulation Kernels of Suspended Nanoparticles

open access: yesFractal and Fractional, 2022
The ability of the Langevin equation to predict coagulation kernels in the transition regime (ranging from ballistic to diffusive) is not commonly discussed in the literature, and previous numerical works are lacking a theoretical justification.
José Morán
doaj   +1 more source

Spatial Compactification and Decay-Rate Behavior

open access: yes, 1999
The pahse transition from instanton-dominated quantum tunneling regime to sphaleron-dominated classical crossover regime is explored in (1+1)-dimensional scalar field theory when spatial coordinate is compactified.
D.K. Park   +12 more
core   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Révolution des Œillets : transition sociopolitique et démocratisation au Portugal

open access: yesILCEA, 2010
In this article, we want to analyse the transition that followed the fall of the longest authoritarian regime in Europe, on 25 April 1974, in Portugal. For that we will consider the Portuguese transition as a process of change which took place through a ...
Ana Saldanha
doaj   +1 more source

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