scholarly journals Programming the shape-shifting of flat soft matter: from self-rolling/self-twisting materials to self-folding origami

2016 ◽  
Vol 3 (6) ◽  
pp. 536-547 ◽  
Author(s):  
S. Janbaz ◽  
R. Hedayati ◽  
A. A. Zadpoor
Keyword(s):  
Soft Matter ◽  
Three Dimensional ◽  
Complex Surface ◽  
Surface Features

Rational programming of the shape-shifting behavior of flat materials (possibly decorated with complex surface features) to create complex three-dimensional structures.

Virtual laparoscopy: Initial experience with three-dimensional ultrasonography to characterize hepatic surface features

2013 ◽  
Vol 82 (6) ◽  
pp. 929-934 ◽  
Author(s):  
Tadashi Sekimoto ◽  
Hitoshi Maruyama ◽  
Takayuki Kondo ◽  
Taro Shimada ◽  
Masanori Takahashi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Initial Experience ◽  
Surface Features

Three-dimensional printing with sacrificial materials for soft matter manufacturing

MRS Bulletin ◽  
2017 ◽  
Vol 42 (08) ◽  
pp. 571-577 ◽  
Author(s):  
Christopher S. O’Bryan ◽  
Tapomoy Bhattacharjee ◽  
Sean R. Niemi ◽  
Sidhika Balachandar ◽  
Nicholas Baldwin ◽  
...  
Keyword(s):  
Soft Matter ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Image Position ◽  
Sacrificial Materials ◽  
Dimensional Printing

Abstract

scholarly journals Three-Dimensional Generalized Dynamics of Soft-Matter Quasicrystals

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Tian-You Fan ◽  
Zhi-Yi Tang
Keyword(s):  
Boundary Value Problems ◽  
Soft Matter ◽  
Boundary Value ◽  
Three Dimensional ◽  
Governing Equations

The three-dimensional generalized dynamics of soft-matter quasicrystals was investigated, in which the governing equations of the dynamics are derived for observed 12-fold symmetry quasicrystals and possibly observed 8- and 10-fold symmetry ones in soft matter. The solving methods, possible solutions for some initial- and boundary-value problems of the equations, and possible applications are discussed as well.

Comparative Study of Nanoscale Surface Structures of Calcite Microcrystals Using FE-SEM, AFM, and TEM

2006 ◽  
Vol 12 (4) ◽  
pp. 302-310 ◽  
Author(s):  
Yung-Ching Chien ◽  
Alfonso Mucci ◽  
Jeanne Paquette ◽  
S. Kelly Sears ◽  
Hojatollah Vali
Keyword(s):  
Electron Microscopy ◽  
Three Dimensional ◽  
Quantitative Information ◽  
Surface Structures ◽  
Surface Features ◽  
Force Microscopy ◽  
Atomic Force ◽  
Transmission Electron ◽  
Micrometer Size ◽  
Microscopic Techniques

The bulk morphology and surface features that developed upon precipitation on micrometer-size calcite powders and millimeter-size cleavage fragments were imaged by three different microscopic techniques: field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) of Pt-C replicas, and atomic force microscopy (AFM). Each technique can resolve some nanoscale surface features, but they offer different ranges of magnification and dimensional resolutions. Because sample preparation and imaging is not constrained by crystal orientation, FE-SEM and TEM of Pt-C replicas are best suited to image the overall morphology of microcrystals. However, owing to the decoration effect of Pt-C on the crystal faces, TEM of Pt-C replicas is superior at resolving nanoscale surface structures, including the development of new faces and the different microtopography among nonequivalent faces in microcrystals, which cannot be revealed by FE-SEM. In conjunction with SEM, Pt-C replica provides the evidence that crystals grow in diverse and face-specific modes. The TEM imaging of Pt-C replicas has nanoscale resolution comparable to AFM. AFM yielded quantitative information (e.g., crystallographic orientation and height of steps) of microtopographic features. In contrast to Pt-C replicas and SEM providing three-dimensional images of the crystals, AFM can only image one individual cleavage or flat surface at a time.

Tool Posture Optimization Subjected to the Rigidity of Multi-Axis Machine Tool

2008 ◽  
Vol 392-394 ◽  
pp. 271-277
Author(s):  
R. Yan ◽  
F.Y. Peng ◽  
J.Z. Yang ◽  
Bin Lin
Keyword(s):  
Product Quality ◽  
Control Strategy ◽  
Three Dimensional ◽  
Complex Surface ◽  
Posture Control ◽  
Stiffness Index ◽  
Sculptured Surface ◽  
Tool Posture ◽  
Machining Planning ◽  
Local Stiffness

In order to achieve higher product quality for sculptured surface productions, an advanced strategy are proposed for machining planning, namely a tool-posture-control strategy. In the tool-posture-control strategy, machining chatter is reduced by controlling the machine rigidity along cutting feed direction. This proposed strategy, which improved product quality of sculptured surface when subjected to both the part geometry and the machine rigidity constrains, is described in this paper. A new machining-planning aid called local stiffness index is developed to help tool posture planning. This proposed strategy subjected to multi-constrains help a part programmer to choice the optimum tool posture. In order to illustrate the application of stiffness index map and the proposed strategy, the applications of the proposed strategy to real three-dimensional complex surface (e.g. a turbine blade) are presented in this paper.

A three dimensional soft matter cell model for mechanotransduction

Soft Matter ◽  
2012 ◽  
Vol 8 (21) ◽  
pp. 5765 ◽  
Author(s):  
Xiaowei Zeng ◽  
Shaofan Li
Keyword(s):  
Soft Matter ◽  
Cell Model ◽  
Three Dimensional

Three-Dimensional Simulation of Skimmer on Water

2003 ◽  
Author(s):  
Kenji Takizawa ◽  
Takashi Yabe
Keyword(s):  
Rotational Motion ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Complex Surface ◽  
Experimental Result ◽  
Simulation Algorithm ◽  
Hydrodynamic Simulation ◽  
Strongly Coupled ◽  
Structure Interaction ◽  
Dimensional Simulation

The purpose of this paper is to develop a new three-dimensional hydrodynamic simulation algorithm for strongly-coupled fluid-structure interaction and demonstrate its ability to capture the complex surface of solid and liquid. For such an example, we use the skimmer phenomena with rotational motion. This result is compared with the experimental result given by Chino et.al. in this conference FEDSM2003-45171.

Regional-scale groundwater flow in a Canadian Shield setting

2009 ◽  
Vol 46 (7) ◽  
pp. 813-827 ◽  
Author(s):  
Jonathan F. Sykes ◽  
Stefano D. Normani ◽  
Mark R. Jensen ◽  
Edward A. Sudicky
Keyword(s):  
Groundwater Flow ◽  
Surface Topography ◽  
Regional Scale ◽  
Three Dimensional ◽  
Complex Surface ◽  
Crystalline Rock ◽  
Canadian Shield ◽  
Water Drainage ◽  
Distribution Models ◽  
Matrix Permeability

A three-dimensional numerical analysis of a 5734 km2 watershed situated in the Canadian Shield has been conducted to illustrate aspects of regional-scale groundwater flow in a crystalline rock setting. An essential requirement of the analysis is the preservation and accurate description of the complex topography, surface water drainage network, groundwater salinity distribution, and permeability distributions. The postglacial evolution of the groundwater flow system was investigated using the finite difference model SWIFT-III. Robustness was assessed by exploring the sensitivity of groundwater flow to topography, variable matrix permeability distribution models, pore-water salinity, and the dissipation of elevated initial pore pressures that result from ice that overlaid the watershed in the last glacial period. Groundwater flow analyses indicate that freshwater heads in all model layers are highly correlated with the complex surface topography such that the transition from zones of groundwater recharge to zones of discharge occurs over distances that can be relatively short. Shallow flow to a depth of tens of metres dominates the overall water balance, and the length of flow paths is relatively short. The analyses of this study indicate that the flow in deeper rock is not regional but rather is a subdued reflection of the local-scale surface topography.

Research of the Technological Parameters Influencing on the Surface Quality of Micro Complex Surface

2005 ◽  
Vol 291-292 ◽  
pp. 513-518 ◽  
Author(s):  
Ming Jun Chen ◽  
Ying Chun Liang ◽  
Ya Zhou Sun ◽  
W.X. Guo ◽  
Wen Jun Zong
Keyword(s):  
Machine Tool ◽  
Three Dimensional ◽  
Complex Surface ◽  
Cutting Parameters ◽  
Numerical Control ◽  
Tool Geometry ◽  
Machining Accuracy ◽  
Technological Parameters ◽  
Machined Surface ◽  
Machining Errors

In order to machine complex free surface parts, a micro NC (numerical control) three-dimensional machine tool is developed, integrated the PMAC control. Based on this NC machine tool, the influencing of the technological and tool’s parameters on machining accuracy of micro complex surface parts are analyzed, and the cause to lead to the machining errors is explained. Therefore, the cutting parameters and tool geometry parameters to machine micro complex surface, such as the human’s face, can be selected optimally. Finally, the micro complex human’s face is machined on this developed micro machine tool under optimal parameters. The experimental results show that the machined surface is smooth and continuous. The machined quality is satisfied.

scholarly journals George William Gray CBE MRIA FRSE. 4 September 1926 — 12 May 2013

2016 ◽  
Vol 62 ◽  
pp. 187-211
Author(s):  
John W. Goodby ◽  
Peter Raynes
Keyword(s):  
British Empire ◽  
Royal Society ◽  
Soft Matter ◽  
Liquid Crystalline ◽  
Three Dimensional ◽  
Liquid Crystal Displays ◽  
Honorary Member ◽  
Flat Panel Displays ◽  
Electronic Displays ◽  
Societal Changes

George Gray was a renowned British materials chemist, internationally distinguished for his research into liquid crystals and their applications in flat-panel displays. His seminal invention of the liquid-crystalline cyanobiphenyls underpinned the creation of the modern electronic displays industry, which began with digital watches and has continued through to smart and three-dimensional televisions. There are now more liquid crystal displays in the world than people, and these devices have engendered societal changes through social networking on the Internet. His ability to design, synthesize and utilize self-organizing materials across the various disciplines of science showed that he was a supreme molecular engineer. For his contributions to soft-matter and related advanced technologies he was made a Commander of the British Empire, Kyoto Prize laureate, Fellow of the Royal Society, Fellow of the Royal Society of Edinburgh and Honorary Member of the Royal Irish Academy.

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