Ionic high-pressure form of elemental boron (2009)
Oganov, Artem R., Chen, Jiuhua, Gatti, Carlo, Ma, Yanzhang, Ma, Yanming, Glass, Colin W., ...
Boron is an element of fascinating chemical complexity. Controversies have shrouded this element since its discovery was announced in 1808: the new 'element' turned out to be a compound containing...
New high-pressure form of boron is significantly ionic (2009)
Oganov, Artem R., Chen, Jiuhua, Gatti, Carlo, Ma, Yanzhang, Ma, Yanming, Glass, Colin W., ...
The comment of Dubrovinskaia et al. is scientifically flawed. The high-pressure form of boron, discovered by Oganov et al., is indeed new and its bonding has a significant ionic character, as...
Pressure effect on the melting temperature (2009)
Pressure-melting temperature relationship is proposed and tested against the experiments of metals (Pt and Al), salt (NaCl), and ceramic (MgO) with positive results. The equation contains one open...
Universal P-V-T Equation of State for Periclase (2008)
Garai, Jozsef, Chen, Jiuhua, Couvy, Helene, Telekes, Gabor
Using previous experiments of periclase, covering a pressure and temperature range of 0-141.8 GPa and 298-3086 K respectively, a universal P-V-T equation of state has been derived for MgO. The...
Numerical Analysis of a Quasistatic Problem of Sliding Frictional Contact with Wear (2007)
Jiuhua Chen, Weimin Han, Mircea Sofonea
Abstract. We consider numerical approximations of a quasistatic problem modeling the sliding frictional contact with wear between a viscoelastic body and a rigid moving foundation. The contact is...
Sofonea M. Numerical analysis of a class of evolution systems arising (2007)
Jiuhua Chen, Weimin Han, Mircea Sofonea
Abstract. We consider a class of abstract nonlinear evolution systems arising in the study of quasistatic frictionless contact problems for elastic-viscoplastic materials. The variational analysis of...
Numerical Analysis of a Nonlinear Evolutionary System with Applications in Viscoplasticity (2007)
Jiuhua Chen, Weimin Han, Mircea Sofonea
Abstract. We consider numerical approximations of a class of abstract nonlinear evolutionary systems arising in the study of quasistatic frictional contact problems for elastic-viscoplastic...
Numerical Analysis of a Nonlinear Evolutionary System with Applications in Viscoplasticity (2007)
Jiuhua Chen, Weimin Han, Mircea Sofonea
Abstract. We consider numerical approximations of a class of abstract nonlinear evolutionary systems arising in the study of quasistatic frictional contact problems for elastic-viscoplastic...
Numerical Analysis of a Contact Problem in (2007)
Rate-type Viscoplasticity, Jiuhua Chen, Weimin Han, Mircea Sofonea
Abstract. In this paper, we consider numerical approximations of a contact problem in rate-type viscoplasticity. The contact conditions are described in term of a subdifferential and include as...
On the Ka canov Method for a Quasi-Newtonian Flow Problem 1 (2007)
Jiuhua Chen, Weimin Han, Hong-ci Huang
Abstract. The Kacanov method is an iteration method for solving nonlinear problems. In this paper, we apply the Kacanov method to solve the problem of quasi-Newtonian flow obeying the Carreau law....