Results 111 to 120 of about 4,184,128 (240)

Sensitivity Analysis of N2O and CH4 Emissions in a Winter Wheat–Rice Double Cropping System

open access: yesAgriculture
The sensitivity of model outputs to parameter variations is crucial for effective model calibration and application. This study assessed the sensitivity of N2O and CH4 emissions to varying weather conditions and fertilization practices in a winter wheat ...
Chuang Liu   +5 more
doaj   +1 more source

Preliminary study of thermomechanical fatigue of polycrystalline MAR-M 200 [PDF]

open access: yes
Thermomechanical fatigue (TMF) experiments were conducted on polycrystalline MAR-M 200 over a cyclic temperature range of 500 to 1000 C. Inelastic strain ranges of 0.03 to 0.2 percent were imposed on the specimens.
Bill, R. C.   +3 more
core   +1 more source

Forest Stand Structure and Primary Production in relation to Ecosystem Development, Disturbance, and Canopy Composition [PDF]

open access: yes, 2016
Temperate forests are complex ecosystems that sequester carbon (C) in biomass. C storage is related to ecosystem-scale forest structure, changing over succession, disturbance, and with community composition.
Scheuermann, Cynthia M
core   +1 more source

What Is Safe Cycling?, Blog 1 [PDF]

open access: yes, 2015
Student blog posts from the Great VCU Bike Race ...
Berry, Hunter   +2 more
core   +1 more source

Agricultural management and plant selection interactively affect rhizosphere microbial community structure and nitrogen cycling. [PDF]

open access: yes, 2019
BACKGROUND:Rhizosphere microbial communities are key regulators of plant performance, yet few studies have assessed the impact of different management approaches on the rhizosphere microbiomes of major crops.
Brisson, Vanessa L   +3 more
core   +1 more source

Synthetic battery cycling [PDF]

open access: yes
The use of interactive computer graphics is suggested as an aid in battery system development. Mathematical representations of simplistic but fully representative functions of many electrochemical concepts of current practical interest will permit ...
Thaller, L. H.
core   +1 more source

Multistaged discharge constructing heterostructure with enhanced solid-solution behavior for long-life lithium-oxygen batteries. [PDF]

open access: yes, 2019
Inferior charge transport in insulating and bulk discharge products is one of the main factors resulting in poor cycling stability of lithium-oxygen batteries with high overpotential and large capacity decay.
Chen, Jie-Sheng   +6 more
core   +1 more source

Synchronizing climate-carbon cycle heartbeats in the Phanerozoic vegetated icehouses

open access: yesNature Communications
Earth experienced state-specific climate-carbon cycle feedbacks during the Late Cenozoic Ice Age (LCIA). Whether similar feedbacks existed in the penultimate icehouse, the Late Paleozoic Ice Age (LPIA), remains uncertain.
Qiang Fang   +7 more
doaj   +1 more source

Soil quality, elemental stoichiometry and crop yield under partial substitution of chemical fertilizers with organic inputs in Vertisols: a six-site field study

open access: yesFrontiers in Plant Science
Partial substitution of chemical fertilizers with organic amendments represents a promising approach to sustainable soil management, yet its integrated effects on soil quality and elemental stoichiometry in Vertisols remain insufficiently understood ...
Fahui Jiang   +10 more
doaj   +1 more source

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