Results 31 to 40 of about 1,040,479 (258)

Crop yield and water use efficiency in response to long-term diversified crop rotations

Frontiers in Plant Science, 2022
Crop production and water productivity may be impacted by diverse crop rotation and management practices. A field study was conducted from 2017-2020 in the Loess Plateau to evaluate the effects of crop rotation sequences on pre-planting and post-harvest ...
Zhengjun Cui, Zhengjun Cui, Bin Yan, Bin Yan, Yuhong Gao, Yuhong Gao, Bing Wu, Bing Wu, Yifan Wang, Yifan Wang, Yaping Xie, Peng Xu, Peng Xu, Haidi Wang, Haidi Wang, Ming Wen, Ming Wen, Yingze Wang, Yingze Wang, Xingkang Ma, Xingkang Ma   +20 more
doaj   +1 more source

Study on Grain Boundary Mechanical Behaviors of Polycrystalline γ-TiAl Using Molecular Dynamics Simulations

Metals
In this study, the molecular dynamics (MD) method was used to study the tensile deformation of polycrystalline γ-TiAl with complex and random grain orientations.
Wenjuan Zhao, Maoqing He, Chunliang Li, Wei Chen   +3 more
doaj   +1 more source

A synergetic grain growth mechanism uniting nanograin rotation and grain boundary migration in nanocrystalline materials

Results in Physics, 2019
A theoretical model has been developed to analyze the energetic characteristic of a cooperative grain growth process in nanocrystalline materials. We proposed that the process can be realized by rotating the adjoining grains first and then migrating the ...
Jianjun Li, Feng Qin, Wenjun Lu, George J. Weng   +3 more
doaj   +1 more source

Cooperative toughening mechanism of nanocrystalline materials by grain rotation and shear-coupled migration of grain boundaries

, 2014
A theoretical model is proposed to illustrate the cooperative effect of nano-grain rotation and shear-coupled migration of grain boundaries on toughening of nanocrystalline materials.
Chen SH(陈少华), Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710072, Shanxi, Peoples R China., Li JJ(李建军)   +2 more
core   +1 more source

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

Вплив удобрення на формуванняпродуктивності ячменю ярого в короткоротаційних сівозмінах

Передгірне та гірське землеробство і тваринництво, 2023
The water-physical and nutrient regimes of the soil, the yield and quality indicators of spring barley grain, the phytosanitary condition of its crops in different types of crop rotation under intensive and alternative fertilization systems were studied.
Марія ЩЕРБА, Оксана КАЧМАР, Ангеліна ДУБИЦЬКА, Оксана ВАВРИНОВИЧ, Оксана ТАРАВСЬКА   +4 more
doaj   +1 more source

Measuring grain rotation at the nanoscale [PDF]

, 2017
In this paper, we introduced a method to measure grain rotation of nanomaterials under external stress using a high pressure diamond anvil cell and the Laue microdiffraction technique at a synchrotron facility. We used tungsten carbide marker crystals to
Xiaoling Zhou, Zhang, Lingkong, Ke, Feng, Bin Chen, Nobumichi Tamura, Zhongying Mi, Feng Ke, Zhou, Xiaoling, Tamura, Nobumichi, Mi, Zhongying, Chen, Bin, Lingkong Zhang   +11 more
core   +1 more source

Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli, Karine Lacourse, Hélène Blais, Anne‐Sophie Deshaies‐Rugama, Cynthia Thompson, Alex Desautels, Jacques Montplaisir, Milan Nigam, Christophe Moderie, Boshra Khajehpiri, Catherine Duclos, Jean Marc Lina, Julie Carrier, Nadia Gosselin   +13 more
wiley   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries

, 2014
A theoretical model has been developed to investigate the effect of a special cooperative process between two main modes of stress-driven nano-grain growth, i.e., nano-grain rotation and shearcoupled migration of grain boundaries, on the emission of ...
Chen SH(陈少华), Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China., Su AJ(苏爱嘉), Li JJ(李建军)   +3 more
core   +1 more source