Results 61 to 70 of about 227,128 (319)

Mott--Hubbard and Anderson Transitions in Dynamical Mean--Field Theory

, 2005
The Anderson--Hubbard Hamiltonian at half--filling is investigated within dynamical mean--field theory at zero temperature. The local density of states is calculated by taking the geometric and arithmetic mean, respectively.
Anderson, Bulla, Dieter Vollhardt, Dobrosavljević, Dobrosavljević, Georges, Krzysztof Byczuk, Mott, Mott, Ulmke, Walter Hofstetter   +10 more
core   +2 more sources

Non-commutative arithmetic-geometric mean inequality [PDF]

Proceedings of the American Mathematical Society, 2009
In this paper we consider a non-commutative analogue of the arithmetic-geometric mean inequality a r b 1-r + (r - 1)b ≥ ra for two positive numbers a, b and for r > 1. We show that under certain assumptions the non-commutative analogue of a r b 1-r which satisfies this inequality is unique and equal to the r-mean.
openaire   +1 more source

Ultra‐Improved Interfacial Strength Between Metallic Surface and Polyurethane via Cost‐Effective Anodizing Process

Advanced Materials Interfaces, EarlyView.
SAA significantly enhanced Al/PU bonding, increasing SLSS by up to 920% and fracture energy by 15 100% through optimized micro‐nano porous surfaces. RSM identified the optimal anodizing conditions, while ML confirmed sulfuric acid concentration and roughness as dominant predictors of strength.
Umut Bakhbergen, Sherif Araby, Zhandos Tauanov, Nursultan Turdakyn, Reza Montazami, Fethi Abbassi, Gulnur Kalimuldina   +6 more
wiley   +1 more source

On the Lawson–Lim means and Karcher mean for positive invertible operators

Journal of Inequalities and Applications, 2018
This note aims to generalize the reverse weighted arithmetic–geometric mean inequality of n positive invertible operators due to Lawson and Lim. In addition, we make comparisons between the weighted Karcher mean and Lawson–Lim geometric mean for higher ...
Wenshi Liao, Pujun Long, Zemin Ren, Junliang Wu   +3 more
doaj   +1 more source

On the geometric-arithmetic mean inequality for matrices [PDF]

, 1997
In this paper refinements and converses of matrix forms of the geometric-arithmetic mean inequality are ...
J. E. Pečarić, M. Alić, P. S. Bullen, V. Volenec   +3 more
core   +1 more source

Optimized differential energy loss estimation for tracker detectors

, 2011
The estimation of differential energy loss for charged particles in tracker detectors is studied. The robust truncated mean method can be generalized to the linear combination of the energy deposit measurements.
Allison, Bak, Bethe, Bichsel, Bichsel, Bichsel, Boersch-Supan, Bozzi, Chojnacki, Fano, Ferenc Siklér, Fermi, Fernow, Giammanco, Grupen, Nakamura, Shao, Sándor Szeles, Ullaland, van Beuzekom   +19 more
core   +1 more source

Untethered Magnetic Microswimmers for Targeted Particle Transport and Flow Manipulation

Advanced Materials Technologies, EarlyView.
This work introduces magnetically actuated microswimmers to dynamically reconfigure fluid flow within a single microfluidic device. Multiple homogeneous microswimmers are independently controlled by an external magnetic field to perform translational and rotational motions, thereby inducing real‐time flow manipulation.
Dineshkumar Loganathan, Dong‐Ming He, Kai‐Wei Chen, Chia‐Yuan Chen   +3 more
wiley   +1 more source

A new analogue of Gauss' functional equation

International Journal of Mathematics and Mathematical Sciences, 1995
Gauss established a theory on the functional equation (Gauss' functional equation) f(a+b2,ab)=f(a,b)  (a,b>0), where f:R+×R+→R is an unknown function of the above equation.
Hiroshi Haruki, Themistocles M. Rassias
doaj   +1 more source

An Approach to Neutrosophic Hyper Soft Rough Matrix and its Application [PDF]

Neutrosophic Sets and Systems
This paper introduces a novel of Neutrosophic Hyper Soft Rough Matrix (NHSRM). We discuss various operators on NHSRM such as addition, multiplication, scalar multiplication and complement.
J. Boobalan, E. Mathivadhana
doaj   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source