Results 51 to 60 of about 408,254 (247)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Nonlinear Dynamic Analysis of Electrostatically Actuated Single-walled Carbon Nanotubes Using Nonlocal Elasticity

Latin American Journal of Solids and Structures
The paper investigates the effects of application of nonlocal elasticity theory on electromechanical behaviors of single-walled carbon nanotubes under electrostatic actuation.
Mir M. Seyyed Fakhrabadi, Abbas Rastgoo, Mohammad Taghi Ahmadian   +2 more
doaj   +1 more source

Numerical study of the influence of surface defects on the stability of a cylindrical pipe containing fluid

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
This paper is concerned with the dynamic behavior of an elastic cylindrical pipe with surface defects interacting with the internal flow of a compressible fluid. A defect in the form of a ring of rectangular cross-section is located on the inner or outer
Sergey A Bochkarev, Sergey V Lekomtsev, Aleksander N Senin   +2 more
doaj   +1 more source

Polyelectrolyte Networks: Elasticity, Swelling, and the Violation of the Flory - Rehner Hypothesis

, 1997
This paper discusses the elastic behavior of polyelectrolyte networks. The deformation behavior of single polyelectrolyte chains is discussed. It is shown that a strong coupling between interactions and chain elasticity exists. The theory of the complete
Vilgis, T. A., Wilder, J.
core   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Theoretical investigations of a highly mismatched interface: the case of SiC/Si(001)

, 2003
Using first principles, classical potentials, and elasticity theory, we investigated the structure of a semiconductor/semiconductor interface with a high lattice mismatch, SiC/Si(001). Among several tested possible configurations, a heterostructure with (
A. Plößl, Alessandra Catellani, C. Long, C. Sbraccia, D. Hamann, F. Gao, G. Cicero, G. Xu, G.-X. Qian, Giancarlo Cicero, H. Balamane, J. Dunstan, J. Hoekstra, J. Tersoff, J.C. Bean, J.E. Northrup, Laurent Pizzagalli, M. Kitabatake, M.C. Payne, Q. Wahab, R. Benedek, R. Bonnet, S.C. Jain, S.R. Nutt, V. Chirita, V. Fiorentini, W. Kohn   +26 more
core   +3 more sources

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Nonlinear Elasticity, Fluctuations and Heterogeneity of Nematic Elastomers

, 2007
Liquid crystal elastomers realize a fascinating new form of soft matter that is a composite of a conventional crosslinked polymer gel (rubber) and a liquid crystal. These {\em solid} liquid crystal amalgams, quite similarly to their (conventional, fluid)
Anderson, Aronovitz, Bellini, Chaikin, Clarke, de Gennes, de Gennes, Deam, DiDonna, Dotsenko, Edwards, Ettouham, Fisher, Fisher, Fridrikh, Goldbart, Golubović, Grinstein, Grinstein, Hagen, Kundler, Kupfer, Kupfer, Kutter, Landau, Leo Radzihovsky, Love, Lubensky, Ma, Mao, Nelson, Nelson, Nelson, Ogden, Olmsted, Radzihovsky, Radzihovsky, Radzihovsky, Rubinstein, Saunders, Selinger, Stenull, Stenull, Terentjev, Treloar, Warner, Warner, Warner, Wilson, Xiangjun Xing, Xing, Xing, Ye   +52 more
core   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

STRESSED CONDITION OF THE WRAPPING WITHOUT-DRIVE HYDROTECHNICAL TUNNEL OF THE CIRCULAR FORM, PROPOSED IN ANISOTROPIC ROCK GROUND

Вестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. The aim of the study is a parametric analysis of the stress-free lining of a pressureless hydraulic tunnel of circular section, and adjacent anisotropic rock from its own weight of the ground medium at different ratios of the elastic ...
D. T. Bautdinov, M. M. Djamaludinov, K. S. Zhukova   +2 more
doaj   +1 more source