Results 221 to 230 of about 214,972 (284)

Modulation of polar auxin transport identifies the molecular determinants of source-sink carbon relationships and sink strength in poplar. [PDF]

Tree Physiol
Balasubramanian VK, Rivas-Ubach A, Winkler T, Mitchell H, Moran J, Ahkami AH.   +5 more
europepmc   +1 more source

Exploring forms of the moist shallow‐water equations using a new compatible finite‐element discretisation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We present a compatible finite‐element discretisation of a general formulation of moist shallow‐water equations, with the aim of providing a simple model to advance understanding of physics–dynamics coupling. We detail set‐ups and show three moist shallow‐water test cases in four different model formulations. The results demonstrate differences between
Nell Hartney, Thomas M. Bendall, Jemma Shipton   +2 more
wiley   +1 more source

Onset of persistent surface ocean oxygenation during the Great Oxidation Event. [PDF]

Nat Commun
Heard AW, Ostrander CM, Shu Y, Bekker A, Poulton SW, Nielsen SG.   +5 more
europepmc   +1 more source

When tiny convective spread affects a midlatitude jet: Spread sequence

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We investigate spread evolution by mesoscale convection from tiny initial condition uncertainty during a real event. There is significant variation among the systems in their propensity to interact with the jet stream, whereby variability in one system (due to convective and long‐wave radiative heating tendencies) tightly relates to Rossby‐like ...
Edward Groot, Michael Riemer
wiley   +1 more source

A Review of Ku-Band GaN HEMT Power Amplifiers Development. [PDF]

Micromachines (Basel)
Kim J.
europepmc   +1 more source

The Dependence of Properties on Structural Features in Macro/Micro Levels for PBF‐LB Fabricated Porous NiTi Alloy

Rare Metals, EarlyView.
ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng, Yang Yang, Xing‐Rong Chu, Yang Zou, Ren‐Zhou Deng, Ke Huang, Philippe Castany, Thierry Gloriant   +7 more
wiley   +1 more source

Hexagonal Boron Nitride Nanosheets: Properties, Preparation and Applications in Thermal Management. [PDF]

Nanomaterials (Basel)
Liu M, Wang Y.
europepmc   +1 more source

Efficient Data Assimilation Method for Optimizing Prediction of Flow Field and Sediment Transport in Open Channel

River Research and Applications, EarlyView.
ABSTRACT Accurately predicting open‐channel flow under complex conditions remains a challenge. This study introduces a novel synergetic self‐adaptive data assimilation (DA) framework, using a proportional‐integral‐derivative (PID) controller to dynamically calibrate the bed roughness parameter ks in a shallow‐water equation model (via the momentum ...
M. Almetwally Ahmed, S. Samuel Li
wiley   +1 more source

Extended Strahler Ordering to Distinguish Mapped River Channels From Overland Flow Pathways and Consistently Compare Digital Networks

River Research and Applications, EarlyView.
ABSTRACT Digital networks are virtual representations of freshwater systems that provide important inputs to, and mapping of, river classifications, simulation models, and quantitative data analyses for policy, planning, and management. Strahler order has often been used to characterize network configuration and as a proxy indicator of river channel ...
Doug Booker, Matt Wilkins, Clare Wilkinson, Rachel Smith   +3 more
wiley   +1 more source

Hybrid Reliable Clustering Algorithm with Heterogeneous Traffic Routing for Wireless Sensor Networks. [PDF]

Sensors (Basel)
Bhukya SN, Annavarapu CSR.
europepmc   +1 more source