scholarly journals Multipod structures of lamellae-forming diblock copolymers in three-dimensional confinement spaces: Experimental observation and computer simulation

2016 ◽  
Vol 54 (17) ◽  
pp. 1702-1709 ◽  
Author(s):  
Takeshi Higuchi ◽  
Marco Pinna ◽  
Andrei V. Zvelindovsky ◽  
Hiroshi Jinnai ◽  
Hiroshi Yabu
Keyword(s):  
Computer Simulation ◽  
Experimental Observation ◽  
Diblock Copolymers ◽  
Three Dimensional

Three-dimensional predator–prey interactions: a computer simulation of bird flocks and aircraft

1986 ◽  
Vol 64 (11) ◽  
pp. 2624-2633 ◽  
Author(s):  
Peter F. Major ◽  
Lawrence M. Dill ◽  
David M. Eaves
Keyword(s):  
Computer Simulation ◽  
Prey Species ◽  
Three Dimensional ◽  
Aircraft Engine ◽  
Aquatic Environments ◽  
Aircraft Engines ◽  
Predator Prey ◽  
Simulation Techniques ◽  
Computer Simulation Techniques ◽  
Individual Prey

Three-dimensional interactions between grouped aerial predators (frontal discs of aircraft engines), either linearly arrayed or clustered, and flocks of small birds were studied using interactive computer simulation techniques. Each predator modelled was orders of magnitude larger than an individual prey, but the prey flock was larger than each predator. Expected numbers of individual prey captured from flocks were determined for various predator speeds and trajectories, flock–predator initial distances and angles, and flock sizes, shapes, densities, trajectories, and speeds. Generally, larger predators and clustered predators caught more prey. The simulation techniques employed in this study may also prove useful in studies of predator–prey interactions between schools or swarms of small aquatic prey species and their much larger vertebrate predators, such as mysticete cetaceans.The study also provides a method to study problems associated with turbine aircraft engine damage caused by the ingestion of small flocking birds, as well as net sampling of organisms in open aquatic environments.

Experimental observation of nonuniversal behavior of the conductivity exponent for three-dimensional continuum percolation systems

1986 ◽  
Vol 34 (10) ◽  
pp. 6719-6724 ◽  
Author(s):  
Sung-Ik Lee ◽  
Yi Song ◽  
Tae Won Noh ◽  
Xiao-Dong Chen ◽  
James R. Gaines
Keyword(s):  
Experimental Observation ◽  
Three Dimensional ◽  
Continuum Percolation

Three-dimensional computer simulation of plasma cloud evolution in the ionosphere

1990 ◽  
Vol 38 (11) ◽  
pp. 1375-1386 ◽  
Author(s):  
V.A. Rozhansky ◽  
I.Yu. Veselova ◽  
S.P. Voskoboynikov
Keyword(s):  
Computer Simulation ◽  
Three Dimensional ◽  
Plasma Cloud ◽  
Cloud Evolution

scholarly journals Deep learning-based estimation of Flory–Huggins parameter of A–B block copolymers from cross-sectional images of phase-separated structures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Katsumi Hagita ◽  
Takeshi Aoyagi ◽  
Yuto Abe ◽  
Shinya Genda ◽  
Takashi Honda
Keyword(s):  
Deep Learning ◽  
Diblock Copolymers ◽  
Three Dimensional ◽  
Image Data ◽  
Real Space ◽  
Cross Sectional ◽  
Regression Problem ◽  
Self Consistent Field ◽  
Experimental Image ◽  
Chain Lengths

AbstractIn this study, deep learning (DL)-based estimation of the Flory–Huggins χ parameter of A-B diblock copolymers from two-dimensional cross-sectional images of three-dimensional (3D) phase-separated structures were investigated. 3D structures with random networks of phase-separated domains were generated from real-space self-consistent field simulations in the 25–40 χN range for chain lengths (N) of 20 and 40. To confirm that the prepared data can be discriminated using DL, image classification was performed using the VGG-16 network. We comprehensively investigated the performances of the learned networks in the regression problem. The generalization ability was evaluated from independent images with the unlearned χN. We found that, except for large χN values, the standard deviation values were approximately 0.1 and 0.5 for A-component fractions of 0.2 and 0.35, respectively. The images for larger χN values were more difficult to distinguish. In addition, the learning performances for the 4-class problem were comparable to those for the 8-class problem, except when the χN values were large. This information is useful for the analysis of real experimental image data, where the variation of samples is limited.

Acoustical Design Study on Application of Absorption Materials

2014 ◽  
Vol 711 ◽  
pp. 546-549
Author(s):  
Wei Lin ◽  
Wei Hwa Chiang
Keyword(s):  
Computer Simulation ◽  
Energy Distribution ◽  
Ray Tracing ◽  
Impulse Response ◽  
Background Noise ◽  
Three Dimensional ◽  
Design Phase ◽  
Design Study ◽  
Sound Energy ◽  
Reinforcement System

Taipei Top Church Auditorium is a hall primarily intended for praise and worship. A three dimensional ray tracing computer simulation was used to provide sound energy distribution on the audience area of the hall, realistic design have been performed. The volume of the hall is 24600m3, which is occupied for 2200 people and equipped the hall with acoustical curtains by modifying its acoustical characteristics. Objective measurements of impulse response are reported, and background noise control and noise isolation are also be considered in the design phase. Reinforcement system is conducted to meet all the activity for the acoustical environments.

scholarly journals Aspects of computer simulation of rescue operation of the maritime military three-dimensional models

Mechanik ◽  
2015 ◽  
pp. 560/289-560/302
Author(s):  
Roman Haberek ◽  
Olaf Kasprzycki ◽  
Mirosław Chmieliński ◽  
Leszek Strączek
Keyword(s):  
Computer Simulation ◽  
Three Dimensional ◽  
Rescue Operation ◽  
Dimensional Models ◽  
Three Dimensional Models
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