Results 91 to 100 of about 343,079 (292)
Ciência e Agrotecnologia, 2008 A deriva nas aplicações de agrotóxicos é considerada um dos maiores problemas da agricultura. Entre os fatores que a influenciam, o tamanho das gotas pulverizadas e a velocidade do vento têm-se mostrado primordiais.
João Paulo Arantes Rodrigues da Cunha
doaj +1 more source
Partially asymmetric exclusion models with quenched disorder
, 2005 We consider the one-dimensional partially asymmetric exclusion process with random hopping rates, in which a fraction of particles (or sites) have a preferential jumping direction against the global drift.
F. Spitzer +8 more
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Advanced Functional Materials, EarlyView.Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi +13 more
wiley +1 more source
Sensors, 2018 We introduce a novel method for indoor localization with the user’s own smartphone by learning personalized walking patterns outdoors. Most smartphone and pedestrian dead reckoning (PDR)-based indoor localization studies have used an operation ...
Jiheon Kang, Joonbeom Lee, Doo-Seop Eom
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Velocity correlations in dense granular flows observed with internal imaging
, 2006 We show that the velocity correlations in uniform dense granular flows inside a silo are similar to the hydrodynamic response of an elastic hard-sphere liquid. The measurements are made using a fluorescent refractive index matched interstitial fluid in a
Arshad Kudrolli +2 more
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Advanced Functional Materials, EarlyView.MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler +3 more
wiley +1 more source
Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
Inequalities in the geographic access to delivery services in Brazil
BMC Health Services ResearchBackground Despite Brazil’s recent social progress, access to health services is still unequal. This article analyzes the inter-municipal distances traveled by pregnant women to access delivery services, documenting their magnitude and relationship to ...
Valdemar Pinho Neto +4 more
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Contacts and Meetings: Location, Duration and Distance Traveled [PDF]
The role of contacts on travel behavior has been getting increasing attention. This paper reports on data collected on individualÕs social meetings and the choice of in-home/out-of-home meeting locations as well as the distance travelled and duration of ...
David Levinson, Nebiyou Tilahun
core
Advanced Functional Materials, EarlyView.Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source