Results 61 to 70 of about 6,062,653 (249)

Dynamics of dry matter accumulation in internodes indicates source and sink relations during grain-filling stage of japonica rice

open access: yes, 2020
Storage of non-structural carbohydrates (NSC) in internode parenchyma before anthesis functions as a major carbon source for rice grain filling.
Li, G.   +18 more
core   +1 more source

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

open access: yesAdvanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu   +2 more
wiley   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

Temporal Accumulation and Partitioning of Mineral Nutrients in Developing Macadamia Fruit

open access: yesHorticulturae
This study quantified nutrient accumulation and partitioning among the kernel, shell, husk, rachis, and leaves during fruit development in three macadamia cultivars. Racemes and leaves were sampled at biweekly intervals until kernel maturity.
Suzy Y. Rogiers   +4 more
doaj   +1 more source

Self-organization and autonomous control of intralogistics systems in line with versatile production at Werk 150

open access: yesProceedings of the Conference on Production Systems and Logistics, 2020
The planning and control of intralogistics systems in line with versatile production systems of smart factories requires new approaches and methods to cope with changing requirements within future factories.
Schuhmacher, Jan, Hummel, Vera
doaj   +1 more source

On the "well-mixed" assumption and numerical 2-D tracing of atmospheric moisture [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Atmospheric water vapour tracers (WVTs) are an elegant tool to determine source–sink relations of moisture "online" in atmospheric general circulation models (AGCMs).
H. F. Goessling, C. H. Reick
doaj   +1 more source

Streamline and Isotherm Visual Analysis of Darcy–Forchheimer von Karman Spinning Flow of Maxwell Fluid Over a Stretching Disk With Quadratic Temperature‐Dependent Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This research paper provides an extensive study of the effects of Darcy–Forchheimer von‐Karman spinning flow of Maxwell fluid across a stretching disk including the effect of heat generation based on a nonlinear function of temperature. The flow system is influenced by thermal radiations and Arrhenius activation energy.
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

From Growth Dynamics to Agronomic Decisions: A Conceptual Framework for Diagnosing Limiting Processes in Crop Productivity

open access: yesAgronomy
Crop productivity emerges from interacting processes of resource capture, biomass production, allocation, and yield formation. Final yield alone cannot identify which process limited production, when the limitation occurred, or whether additional inputs ...
Alberto San Bautista
doaj   +1 more source

A rational approximation to the evolution of a free surface during fluid withdrawal through a point sink [PDF]

open access: yes, 2010
The time varying flow in which fluid is withdrawn from a reservoir through a point sink of variable strength beneath a free surface is considered. Asymptotic techniques are used to derive an approximate solution to the flow that is valid at intermediate ...
Forbes, Lawrence K.   +4 more
core  

Deciphering the Palimpsest: Chronological Uncertainty and the Interpretation of Mining Landscapes at Písečný vrch (Czech Republic)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT We investigated the Písečný vrch (Czech Republic), a site exploited for quartz mining in both prehistoric times and the 20th century. Due to their morphological similarity across all mining periods, the differentiation between pits with archaeological potential and recent ones is challenging.
Jan Fišer   +5 more
wiley   +1 more source

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