Results 31 to 40 of about 6,082,709 (306)

Couette Flow of a Yield-Stress Fluid With Slip As Studied by Rheo-Piv

open access: yesApplied Rheology, 2017
The Couette flow of a model yield-stress fluid with slip at the walls, a 0.12% Carbopol® 940 microgel, was analyzed in this work by simultaneous rheometrical and particle image velocimetry measurements (Rheo-PIV).
Medina-Bañuelos Esteban F.   +3 more
doaj   +1 more source

The Electronic Structure of NiO by means of Electron Spectroscopies and theoretical calculations [PDF]

open access: yes, 2007
We report experimental and theoretical evidence of surface effects in the Ni 2p x-ray photoemission spectra XPS of NiO. The Ni 2p3/2 surface-enhanced XPS of a NiO sample show a relative enhancement of the intensity of the known satellite at 1.5 eV higher
Soriano de Arpe, Leonardo
core   +1 more source

Structural and Magnetic Response in Bimetallic Core/Shell Magnetic Nanoparticles

open access: yesNanomaterials, 2016
Bimagnetic monodisperse CoFe2O4/Fe3O4 core/shell nanoparticles have been prepared by solution evaporation route. To demonstrate preferential coating of iron oxide onto the surface of ferrite nanoparticles X-ray diffraction (XRD), High resolution ...
Adeela Nairan   +7 more
doaj   +1 more source

Topographical and Thermal Forcing in Favorable Circulation Pattern to Early Spring Precipitation over the Southeastern Tibetan Plateau

open access: yesAtmosphere, 2022
During the boreal spring (March–May), the precipitation that occurs from March over the southeastern Tibetan Plateau (TP) can account for 20–40% of the total annual amount.
Yaoxian Yang   +5 more
doaj   +1 more source

Characteristics of Surface Radiation Variations in the Mount Everest Region

open access: yesGaoyuan qixiang
This study, through comprehensive observations of the radiation field in the Everest National Nature Reserve (hereinafter referred to as "Everest"), reveals the spatiotemporal variation patterns and potential impacts on the ecological environment and ...
Longtengfei MA   +6 more
doaj   +1 more source

Reactivity of laser-cleaned stones to a SO2 ageing test

open access: yesMateriales de Construccion, 2004
In order to study the reaction or susceptibility of Nd:YAG laser cleaned stones to polluted atmospheres, several types of stone, both cemented (limestone) and crystalline (marble, granite), were exposed to an atmosphere having simulated SO2 pollution ...
F.J. Alonso   +3 more
doaj   +1 more source

Surface Effects in Magnetic Microtraps

open access: yes, 2002
We have investigated Bose-Einstein condensates and ultra cold atoms in the vicinity of a surface of a magnetic microtrap. The atoms are prepared along copper conductors at distances to the surface between 300 um and 20 um.
A. Günther   +25 more
core   +1 more source

Modified Continuum Mechanics Modeling on Size-Dependent Properties of Piezoelectric Nanomaterials: A Review

open access: yesNanomaterials, 2017
Piezoelectric nanomaterials (PNs) are attractive for applications including sensing, actuating, energy harvesting, among others in nano-electro-mechanical-systems (NEMS) because of their excellent electromechanical coupling, mechanical and physical ...
Zhi Yan, Liying Jiang
doaj   +1 more source

Non-Linear Gait Dynamics Are Affected by Commonly Occurring Outdoor Surfaces and Sex in Healthy Adults

open access: yesSensors
(1) Background: Human walking involves adapting to diverse terrains, influencing gait biomechanics. This study examined how seven outdoor surfaces—flat–even, banked-right/-left, cobblestone, grass, sloped-down, and sloped-up—affect nonlinear gait ...
Jill Emmerzaal   +2 more
doaj   +1 more source

Future Land Use and Flood Risk Assessment in the Guanzhong Plain, China: Scenario Analysis and the Impact of Climate Change

open access: yesRemote Sensing, 2023
Continuously global warming and landscape change have aggravated the damage of flood disasters to ecological safety and sustainable development. If the risk of flood disasters under climate and land-use changes can be predicted and evaluated, it will be ...
Pingping Luo   +9 more
doaj   +1 more source

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