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Granularity - Wikipedia
en.wikipedia.org/wiki/Granularity Private View
Precision and ambiguity. Coarse-grained materials or systems have fewer, larger discrete components than fine-grained materials or systems.. A coarse-grained description of a system regards large subcomponents.; A fine-grained description regards smaller components of which the larger ones are composed.; The concepts granularity, coarseness, and fineness are relative; and are used when ...
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Precision and ambiguity. Coarse-grained materials or systems have fewer, larger discrete components than fine-grained materials or systems.. A coarse-grained description of a system regards large subcomponents.; A fine-grained description regards smaller components of which the larger ones are composed.; The concepts granularity, coarseness, and fineness are relative; and are used when ...
Approaches and Perspective of Coarse-Grained Modeling and Simulation ...
pubs.acs.org/doi/10.1021/acsomega.2c06248 Private View
In CG-MD, one or more monomers/units of the hybrid materials are represented as a coarse-grained bead capable of reproducing parts of the polymer architecture. This leads to the loss of fine-grained atomic details of the system, which are crucial for studying properties and interactions of atom-level structures, but concurrently saves a significant computational cost by speeding up the ...
In CG-MD, one or more monomers/units of the hybrid materials are represented as a coarse-grained bead capable of reproducing parts of the polymer architecture. This leads to the loss of fine-grained atomic details of the system, which are crucial for studying properties and interactions of atom-level structures, but concurrently saves a significant computational cost by speeding up the ...
Coarse Grained Model - an overview | ScienceDirect Topics
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Coarse-grained models. Coarse-grained models are aimed at building simplified representations of complex systems that allow keeping the main chemical/physical peculiarities (such as the interplay between hydrophilic and hydrophobic effects) and performing affordable and meaningful simulations, which could not be feasible with, for example ...
Coarse-grained models. Coarse-grained models are aimed at building simplified representations of complex systems that allow keeping the main chemical/physical peculiarities (such as the interplay between hydrophilic and hydrophobic effects) and performing affordable and meaningful simulations, which could not be feasible with, for example ...
A state-dependent bounding surface model of coarse-grained materials ...
www.sciencedirect.com/science/article/pii/S0266352X2400123X Private View
It should be noted that the GSD of coarse-grained materials is always changed with particle breakage. This phenomenon is unavoidable for rockfill materials when the consolidation pressure reaches 1.5 MPa, as mentioned in section 3.1. Once crushing, granular material behaviors would be dominated by not only initial GSD but also GSD ...
It should be noted that the GSD of coarse-grained materials is always changed with particle breakage. This phenomenon is unavoidable for rockfill materials when the consolidation pressure reaches 1.5 MPa, as mentioned in section 3.1. Once crushing, granular material behaviors would be dominated by not only initial GSD but also GSD ...
Bottom-up Coarse-Graining: Principles and Perspectives
pubs.acs.org/doi/10.1021/acs.jctc.2c00643 Private View
Below, we briefly describe these essential steps required for bottom-up CG modeling and discuss how they are related to the aforementioned challenges. 2-1. Coarse-Grained Mapping. The process of applying a CG mapping reduces the high-dimensional atomistic phase space to a low-dimensional CG phase space.
Below, we briefly describe these essential steps required for bottom-up CG modeling and discuss how they are related to the aforementioned challenges. 2-1. Coarse-Grained Mapping. The process of applying a CG mapping reduces the high-dimensional atomistic phase space to a low-dimensional CG phase space.
Systematic coarse-graining of epoxy resins with machine learning ...
www.nature.com/articles/s41524-021-00634-1 Private View
Systematically coarse-grained (CG) models can extend the length and time scales of MD simulations by orders of magnitude, but chemistry-specificity requires calibration of a complex force-field to ...
Systematically coarse-grained (CG) models can extend the length and time scales of MD simulations by orders of magnitude, but chemistry-specificity requires calibration of a complex force-field to ...
Coarse-Grained Modeling of Ion-Containing Polymers
pubs.acs.org/doi/10.1021/acs.chemrev.1c00913 Private View
Coarse-grained modeling provides an efficient approach for exploring the structural and dynamical properties of these soft materials. The unique physicochemical properties of such polymers are of broad interest. In this review, we summarize the current development and understanding of the structure–property relationship of ion-containing ...
Coarse-grained modeling provides an efficient approach for exploring the structural and dynamical properties of these soft materials. The unique physicochemical properties of such polymers are of broad interest. In this review, we summarize the current development and understanding of the structure–property relationship of ion-containing ...
Ultrafine-Grained Materials | SpringerLink
link.springer.com/chapter/10.1007/978-3-030-80359-9_17 Private View
The common grain size of the metals in the industry is >10 μm and are called coarse-grained materials [ 16 ]. Fine-grained metals that are processed using industrial thermomechanical processing have a grain size of ∼1–10 μm. It is hard to achieve a metal with grain size <1 μm (called ultrafine grained) or <100 nm (called nanograined ...
The common grain size of the metals in the industry is >10 μm and are called coarse-grained materials [ 16 ]. Fine-grained metals that are processed using industrial thermomechanical processing have a grain size of ∼1–10 μm. It is hard to achieve a metal with grain size <1 μm (called ultrafine grained) or <100 nm (called nanograined ...
Constitutive Modeling of Coarse-Grained Materials Incorporating the ...
ascelibrary.org/doi/10.1061/(ASCE)GM.1943-5622.0000759 Private View
Coarse-grained materials (CGMs), including gravel, ballast, and rockfill material, exhibit a complicated stress-strain-volume change behavior, which is state dependent and influenced by considerable particle breakage even under relatively low pressure. A generalized plasticity model with a multiaxial formulation is developed for CGMs ...
Coarse-grained materials (CGMs), including gravel, ballast, and rockfill material, exhibit a complicated stress-strain-volume change behavior, which is state dependent and influenced by considerable particle breakage even under relatively low pressure. A generalized plasticity model with a multiaxial formulation is developed for CGMs ...
Coarse-Grained Simulation | SpringerLink
link.springer.com/chapter/10.1007/978-981-10-0815-3_2 Private View
1 Coarse-Graining of Polymers. As described in Chap. 1, in simulation of polymeric materials, various length and time scales need to be handled because of the hierarchical structure of polymers and diversity of properties of polymeric materials. This would be simple if full atomistic simulation could be used to handle huge length and time scales.
1 Coarse-Graining of Polymers. As described in Chap. 1, in simulation of polymeric materials, various length and time scales need to be handled because of the hierarchical structure of polymers and diversity of properties of polymeric materials. This would be simple if full atomistic simulation could be used to handle huge length and time scales.
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Coarse-grained Dynamics Simulation in Polymer Systems: from ... - Springer
link.springer.com/article/10.1007/s40242-022-2080-3 Private View
Based on recent studies in our group, the main progress of coarse-grained simulation methods in studying the structure, properties and physical mechanism of polymer materials is reviewed. It is anticipated to provide a reference for further development of coarse-grained simulation methods and software suitable for polymer research.
Based on recent studies in our group, the main progress of coarse-grained simulation methods in studying the structure, properties and physical mechanism of polymer materials is reviewed. It is anticipated to provide a reference for further development of coarse-grained simulation methods and software suitable for polymer research.
Differences Between Coarse-Grained and Fine-Grained Soil
theconstructor.org/geotechnical/coarse-fine-grained-soil/26299 Private View
Coarse-grained soils have 50% or less material passing the No. 200 sieve. Fine-grained soils have 50% or more material passing the No. 200 sieve. Engineering properties such as strength and compressibility of coarse-grained soil are governed by the grain-size of the particles and their structural arrangement.
Coarse-grained soils have 50% or less material passing the No. 200 sieve. Fine-grained soils have 50% or more material passing the No. 200 sieve. Engineering properties such as strength and compressibility of coarse-grained soil are governed by the grain-size of the particles and their structural arrangement.
A machine learning enabled hybrid optimization framework for ... - Nature
www.nature.com/articles/s41524-022-00914-4 Private View
This work presents a framework governing the development of an efficient, accurate, and transferable coarse-grained (CG) model of a polyether material. The framework combines bottom-up and top ...
This work presents a framework governing the development of an efficient, accurate, and transferable coarse-grained (CG) model of a polyether material. The framework combines bottom-up and top ...
Coarse‐grained molecular dynamics simulation of polymers: Structures ...
wires.onlinelibrary.wiley.com/doi/10.1002/wcms.1683?af=R Private View
State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, China. Correspondence. ... For the simulations of polymeric systems, coarse-grained (CG) molecular dynamics simulations are computationally demanding not only because of their high ...
State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, China. Correspondence. ... For the simulations of polymeric systems, coarse-grained (CG) molecular dynamics simulations are computationally demanding not only because of their high ...
Ultrasonic signal enhancement for coarse grain materials by machine ...
www.sciencedirect.com/science/article/abs/pii/S0041624X21001773 Private View
When a coarse-grained material is detected by ultrasonic testing (UT), flaw echoes will probably be submerged in noise background resulting from grain scattering of ultrasonic, that is, grain noise. Since the amplitude of scattering noise can be comparable to the defect echoes, it makes defect detection for such materials difficult by evaluating ultrasonic time domain amplitude.
When a coarse-grained material is detected by ultrasonic testing (UT), flaw echoes will probably be submerged in noise background resulting from grain scattering of ultrasonic, that is, grain noise. Since the amplitude of scattering noise can be comparable to the defect echoes, it makes defect detection for such materials difficult by evaluating ultrasonic time domain amplitude.
(PDF) Geotechnical Characterisation of Coarse-Grained ... - ResearchGate
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Coarse-grained materials in engineering projects can . contain pa rticle sizes greater th an 175 mm. Approaches . for evaluating the shear strength and behaviour of coarse-
Coarse-grained materials in engineering projects can . contain pa rticle sizes greater th an 175 mm. Approaches . for evaluating the shear strength and behaviour of coarse-
Modeling the mechanical behavior of coarse-grained soil ... - Springer
link.springer.com/article/10.1007/s11440-020-01007-6 Private View
Systematic investigation of the effects of individual particle properties, such as shape, size, surface roughness, and constituent materials stiffness, on the behavior of coarse-grained soils requires careful control over the other particle properties. Achieving this control is a pervasive challenge in investigations with naturally occurring soils. The rapid advance of modern additive ...
Systematic investigation of the effects of individual particle properties, such as shape, size, surface roughness, and constituent materials stiffness, on the behavior of coarse-grained soils requires careful control over the other particle properties. Achieving this control is a pervasive challenge in investigations with naturally occurring soils. The rapid advance of modern additive ...
Mechanical Modeling of Frozen Coarse-Grained Materials ... - Hindawi
www.hindawi.com/journals/amse/2021/6639428 Private View
In the cold regions of China, coarse-grained materials are frequently encountered or used as backfilling materials in infrastructure construction, such as dams, highways, railways, and mineral engineering structures. Effects of confining pressure (0.2, 0.5, and 1 MPa) and frozen temperature (−2, −5, −10, and −15°C) on the stress-strain response and elastic modulus were ...
In the cold regions of China, coarse-grained materials are frequently encountered or used as backfilling materials in infrastructure construction, such as dams, highways, railways, and mineral engineering structures. Effects of confining pressure (0.2, 0.5, and 1 MPa) and frozen temperature (−2, −5, −10, and −15°C) on the stress-strain response and elastic modulus were ...
COARSE-GRAINED definition | Cambridge English Dictionary
dictionary.cambridge.org/us/dictionary/english/coarse-grained Private View
COARSE-GRAINED meaning: 1. Coarse-grained rock, soil, paper, material, etc. is rough, or has pieces in it that are larger…. Learn more.
COARSE-GRAINED meaning: 1. Coarse-grained rock, soil, paper, material, etc. is rough, or has pieces in it that are larger…. Learn more.
Effects of coarse-grained material on hydraulic properties and shear ...
www.sciencedirect.com/science/article/pii/S0013795208001257 Private View
After some trial mixes, Indrawan et al. (2006) showed that permeability of soil mixtures started to increase when mixed with more than 50% coarse-grained materials. Similar results have also been observed by other researchers (e.g., Shakoor and Cook (1990) and Shelley and Daniel (1993) .
After some trial mixes, Indrawan et al. (2006) showed that permeability of soil mixtures started to increase when mixed with more than 50% coarse-grained materials. Similar results have also been observed by other researchers (e.g., Shakoor and Cook (1990) and Shelley and Daniel (1993) .