Results 31 to 40 of about 59,690 (299)

On the physical interpretation of fractional diffusion

Comptes Rendus. Mécanique, 2018
Even if the diffusion equation has been widely used in physics and engineering, and its physical content is well understood, some variants of it escape fully physical understanding. In particular, anormal diffusion appears in the so-called fractional diffusion equation, whose main particularity is its non-local behavior, whose physical interpretation ...
Nadal, Enrique, Abisset-Chavanne, Emmanuelle, Cueto, Elias, Chinesta, Francisco   +3 more
openaire   +5 more sources

Carbon sequestration in clay and silt fractions of Brazilian soils under conventional and no-tillage systems

Scientia Agricola, 2014
The capacity of soils to sequestrate carbon (C) is mainly related to the formation of organo-mineral complexes. In this study, we investigated the influence of soil management systems on the C retention capacity of soil with an emphasis on the silt and ...
Cecília Estima Sacramento dos Reis, Deborah Pinheiro Dick, Jennifer da Silva Caldas, Cimélio Bayer   +3 more
doaj   +1 more source

Theoretically predicting the solubility of polydisperse polymers using Flory–Huggins theory

JPhys Materials, 2023
Polydispersity affects physical properties of polymeric materials, such as solubility in solvents. Most biobased, synthetic, recycled, mixed, copolymerized, and self-assembled polymers vary in size and chemical structure.
Stijn H M van Leuken, Rolf A T M van Benthem, Remco Tuinier, Mark Vis   +3 more
doaj   +1 more source

Organic Matter in Soils with Anthropic Horizons in The Eastern Amazon, Pará (Brazil)

Floresta e Ambiente, 2022
The aim of this study was to evaluate the distribution of chemical and physical fractions of soil organic matter (SOM) in anthropic horizons of soil profiles in the west of Pará.
Melania Merlo Ziviani, Iolanda Maria Soares Reis, Orlando Carlos Huertas Tavares, Eudocio Rafael Otavio Silva, Otavio Augusto Queiroz dos Santos, Luiz Alberto da Silva Rodrigues Pinto, Marcos Gervasio Pereira   +6 more
doaj   +1 more source

Physical Characteristics of Egg Yolk Granules and Effect on Their Functionality

Foods, 2023
Eggs are among the most nutritious foods in the world, a versatile ingredient in many food applications due to their functional attributes such as foaming, emulsifying, and coloring agents.
Beatrice Mofoluwaso Oladimeji, Ronald Gebhardt   +1 more
doaj   +1 more source

HCl and DCl: A case study of different approaches for determining photo fractionation constants [PDF]

, 2006
The photoabsorption cross sections of HCl and DCl are calculated using the reflection principle and time dependent wavepacket propagation methods. The absorption cross sections are compared to high precision experimental absorption cross sections from ...
Johnson, Matt S., Grage, Mette, Nyman, Gunnar,   +2 more
core   +1 more source

Conservation agriculture enhances crop productivity and soil carbon fractions in Indo-Gangetic Plains of India

Frontiers in Sustainable Food Systems
This study evaluates the impact of conservation agriculture (CA) on soil carbon sequestration and crop productivity in the Indo-Gangetic Plains, focusing on short-term effects over 3 and 5 years.
Ajay Kumar Mishra, Ajay Kumar Mishra, Hitoshi Shinjo, Hanuman Sahay Jat, Mangi Lal Jat, Raj Kumar Jat, Shinya Funakawa   +6 more
doaj   +1 more source

Physical characterization of biomedical magnetic nanoparticles using multi-detector centrifugal field-flow fractionation

Current Directions in Biomedical Engineering, 2021
The unique magnetic properties of magnetic nanoparticles (MNP) combined with their small size already led to numerous medical applications. Accurate determination of their magnetic properties is a key requirement enquired by users, that is impeded by the
Remmo Amani, Löwa Norbert, Peter Julija, Wiekhorst Frank   +3 more
doaj   +1 more source

The Crop Succession Systems Under No-Tillage Alters the Surface Layer Soil Carbon Stock and Stability

Agriculture
The main challenge of the no-tillage system (NTS) is to reconcile productivity, the maintenance of surface residues, and the stabilization of soil organic matter (SOM). To address this challenge, particularly in tropical regions, various cover crops have
Paloma Pimentel de Souza, Deivid Lopes Machado, Micael Silva de Freitas, Aracy Camilla Tardin Pinheiro Bezerra, Tiara Moraes Guimarães, Eder Marcos da Silva, Natanael Moreira do Nascimento, Rafael da Silva Borges, Vladimir Eliodoro Costa, Claudio Hideo Martins da Costa, Simério Carlos Silva Cruz   +10 more
doaj   +1 more source

The Application of Field-Flow Fractionation to the Analysis of Nanomedicines

British Journal of Pharmacy, 2022
The combination of field-flow fractionation with powerful leading-edge detectors can be applied to the measurement of nanomaterial physicochemical properties, and the creation of harmonized robust measurement protocols.
Karim Daramy, Panida Punnabhum, Joshua Walker , Syampriya Bindhu Syammohan , Zahra Rattray   +4 more
doaj   +1 more source