نتایج جستجو برای: electrical field strength

تعداد نتایج: 1134770  

2016
Rengeng Li Huijun Kang Zongning Chen Guohua Fan Cunlei Zou Wei Wang Shaojian Zhang Yiping Lu Jinchuan Jie Zhiqiang Cao Tingju Li Tongmin Wang

To address the trade-off between strength and electrical conductivity, we propose a strategy: introducing precipitated particles into a structure composed of deformation twins. A Cu-0.3%Zr alloy was designed to verify our strategy. Zirconium was dissolved into a copper matrix by solution treatment prior to cryorolling and precipitated in the form of Cu5Zr from copper matrix via a subsequent agi...

2017
Dongdong Zhang Fang Bai Liping Sun Yong Wang Jinguo Wang

The compression properties and electrical conductivity of in-situ 20 vol.% nano-sized TiCx/Cu composites fabricated via combustion synthesis and hot press in Cu-Ti-CNTs system at various particles size and morphology were investigated. Cubic-TiCx/Cu composite had higher ultimate compression strength (σUCS), yield strength (σ0.2), and electric conductivity, compared with those of spherical-TiCx/...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
(pages 151-162) a. m. maskooki m. n. eshtiaghi

the effects of pulsed electric field (pef) on the cell disintegration of sugar beet were studied. field strength (0.5kv/cm to 6kv/cm), pulse number (1 to 100 pulses) and capacity of capacitors (0.5 f to 32 f) were evaluated on degree of cell disintegration and consumed energy in pef treatment. the field conditions of 1 and 2 kv/cm, 8 f with 20 and 10 pulses respectively disintegrated the cel...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2005
Filipe E Antunes Björn Lindman Maria G Miguel

Rheology and phase separation were investigated for aqueous mixtures of two oppositely charged hydrophobically modified polyelectrolytes. The typical phase separation, normally seen for oppositely charged polymer mixtures, is dramatically reduced by the presence of hydrophobic modification, and phase separation is only detected close to the point of charge neutralization. While the two polyelec...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2016
Ingrid Ibagon Markus Bier S Dietrich

The three-phase contact line formed by the intersection of a liquid-vapor interface of an electrolyte solution with a charged planar substrate is studied in terms of classical density functional theory applied to a lattice model. The influence of the substrate charge density and of the ionic strength of the solution on the intrinsic structure of the three-phase contact line and on the correspon...

Journal: :Biophysical chemistry 1991
T Odijk

The electrostatics of micellar growth is reviewed and extended for solutions containing excess salt. In dilute solution the expansion of a linear micelle with increasing salt concentration is explained for a wide range of ionic strength. When the micellar charge density is very high, counterions condense nonuniformly onto the micellar rod. In that case the micelle may contract upon the addition...

Journal: :The Biochemical journal 1989
F De Meester A Matagne G Dive J M Frère

Ionic strength strongly influenced the turnover/inactivation ratio in the interaction between beta-halogenopenicillanates and some class A beta-lactamases. This suggested the stabilization of a highly charged intermediate by solvation. Those data could be interpreted on the basis of a reaction pathway where an episulphonium ion was transiently formed. The various mechanisms proposed for explain...

Journal: :The Journal of chemical physics 2011
Dong Meng Qiang Wang

Following our previous work on the solvent-response of uncharged diblock copolymer brushes (D. Meng and Q. Wang, J. Chem. Phys. 130, 134904 (2009)), we have performed continuum self-consistent field calculations to study the response (i.e., changes of brush height and surface-layer composition) of diblock brushes with only one block charged to various external stimuli, including solvent selecti...

Journal: :The Journal of chemical physics 2013
Anh D Phan Dustin A Tracy T L Hoai Nguyen N A Viet The-Long Phan Thanh H Nguyen

The electrostatic potential profile of a spherical soft particle is derived by solving the Poisson-Boltzmann equations on a spherical system both numerically and analytically. The soft particle is assumed to consist of an ion-permeable charged outer layer and a non-permeable charged core with constant charged density. The contribution of the core to the potential profile is calculated for diffe...

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