Results 41 to 50 of about 32,459 (292)

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

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

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

Direct observation of the atomic scale mechanism of grain rotation

, 2023
A polycrystalline material is an aggregate of crystallites with different lattice orientations. The crystallites, i.e., grains, can undergo nearly-rigid-body rotation.
Xiaoguo Gong, Leonardo Velasco Estrada, Jian Han, Yuan Tian, Yutong Bi, Xiaoqing Pan, Horst Hahn, Mingjie Xu, David Srolovitz   +8 more
core   +1 more source

Understanding dynamics in coarse-grained models. III. Roles of rotational motion and translation-rotation coupling in coarse-grained dynamics

The Journal of Chemical Physics, 2023
This paper series aims to establish a complete correspondence between fine-grained (FG) and coarse-grained (CG) dynamics by way of excess entropy scaling (introduced in Paper I). While Paper II successfully captured translational motions in CG systems using a hard sphere mapping, the absence of rotational motions in single-site CG models introduces ...
Jaehyeok Jin, Eok Kyun Lee, Gregory A. Voth   +2 more
openaire   +3 more sources

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

Molecular Oncology, EarlyView.
Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq, Marc Terrones, Felicia Rodrigues Fortes, Anne Schepers, Alessia Denis, Christophe Deben, Ken Op de Beeck, Guy Van Camp, Geert Vandeweyer   +8 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

Alignment of suprathermally rotating grains [PDF]

Monthly Notices of the Royal Astronomical Society, 1995
It is shown, that mechanical alignment can be efficient for suprathermally rotating grains, provided that they drift with supersonic velocities. Such a drift should be widely spread due to both Alfvénic waves and ambipolar diffusion. Moreover, if suprathermal rotation is caused by grain interaction with a radiative flux, it is shown, that mechanical ...
openaire   +2 more sources

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