The Role of Chaos in One-Dimensional Heat Conductivity

We investigate the heat conduction in a quasi 1-D gas model with various degree of chaos. Our calculations indicate that the heat conductivity $\kappa$ is independent of system size when the chaos of the channel is strong enough. The different diffusion behaviors for the cases of chaotic and non-chaotic channels are also studied. The numerical results of divergent exponent $\alpha$ of heat conduction and diffusion exponent $\beta$ are in consistent with the formula $\alpha=2-2/\beta$. We explore the temperature profiles numerically and analytically, which show that the temperature jump is primarily attributed to superdiffusion for both non-chaotic and chaotic cases, and for the latter case of superdiffusion the finite-size affects the value of $\beta$ remarkably.Comment: 6 pages, 7 figure

Electron-nuclear entanglement in the cold lithium gas

We study the ground-state entanglement and thermal entanglement in the hyperfine interaction of the lithium atom. We give the relationship between the entanglement and both temperature and external magnetic fields.Comment: 7 pages, 3 figure

IT Enabled Organizational Agility and Firm Performance: Evidence from Chinese Firms

In this study, we examine the role of information technology (IT) in improving organizational agility and firm performance from the perspectives of the resource-picking and capability-building mechanisms of rent creation, and the hierarchy of dynamic capabilities. We divide IT capabilities into IT exploration capability, which corresponds to the resource-picking phase, and IT exploitation capability, which corresponds to the capability-building phase. Based on the concept of a hierarchy of dynamic capabilities, we establish the theoretical links between lower order capabilities (IT exploitation), higher order capabilities (organizational agility), and performance. Using the partial least squares (PLS) structural equation modeling approach, we empirically test the proposed relationships using data from 289 manufacturers in the Pearl River Delta region of Guangdong, China. Our results suggest that 1) IT exploration capability (resource picking) affects IT exploitation capability (capability building); 2) IT exploitation capability has positive effects on custo mer, operational, and partner agilities (higher order of capabilities); and 3) the IT enabled organizational agilities positively affect firm performance. We discuss the theoretical and practical implications of our findings and the opportunities for futur e research

Learning Better Font Slicing Strategies from Data

Generally, the present disclosure is directed to serving font files in topical subsets. In particular, in some implementations, the systems and methods of the present disclosure can include or otherwise leverage one or more machine-learned models to predict topic labels of characters in a font based on a corpus of characters or glyphs

Heat conductivity in the presence of a quantized degree of freedom

We propose a model with a quantized degree of freedom to study the heat transport in quasi-one dimensional system. Our simulations reveal three distinct temperature regimes. In particular, the intermediate regime is characterized by heat conductivity with a temperature exponent $\gamma$ much greater than 1/2 that was generally found in systems with point-like particles. A dynamical investigation indicates the occurrence of non-equipartition behavior in this regime. Moreover, the corresponding Poincar\'e section also shows remarkably characteristic patterns, completely different from the cases of point-like particles.Comment: 7 pages, 4 figure