Statefinder Parameters for Tachyon Dark Energy Model

In this paper we study the statefinder parameters for the tachyon dark energy model. There are two kinds of stable attractor solutions in this model. The statefinder diagrams characterize the properties of the tachyon dark energy model. Our results show that the evolving trajectories of the attractor solutions lie in the total region and pass through the LCDM fixed point, which is different from other dark energy model.Comment: 5 pages, 5 figures, accepted by MPL

Strong cosmic censorship for a black hole in loop quantum gravity

A fine gravitational theory is essentially expected to deal with the problem of spacetime singularities. Loop quantum gravity as one branch of quantum gravity is potential to explore the nature of black holes. Recently, according to the quantum Oppenheimer-Snyder model in loop quantum cosmology, a novel loop quantum corrected black hole in de Sitter spacetime has been discovered. Here, we focus on examining the strong cosmic censorship(SCC) based on such a quantum modified black hole by considering a massless neutral scalar field perturbation. As a result, we find that the SCC is destroyed as the black hole approaches to the near-extremal limit. Notably, the critical value of the black hole mass ratio for such a violation increases with the increase of the cosmological constant. It was implied the cosmological constant plays an important role in moderating the violation of the SCC

A systemic review of suboptimal health

The "suboptimal health" is a term used to describe a group of conditions that affect many people around the globe but cannot be diagnosed with any diseases of clinical standards. Due to the complexity in conditions and manifestations, there have been controversies about how to define and categorize the suboptimal health. In this paper, we thoroughly analyzed the currently available suboptimal health research articles and discussed the related issues about the concept of suboptimal health and the diagnostic criteria. The differential diagnosis between chronic fatigue syndrome and psychosomatic diseases was made. The problems in suboptimal health research and future directions were solved.The "suboptimal health" is a term used to describe a group of conditions that affect many people around the globe but cannot be diagnosed with any diseases of clinical standards. Due to the complexity in conditions and manifestations, there have been controversies about how to define and categorize the suboptimal health. In this paper, we thoroughly analyzed the currently available suboptimal health research articles and discussed the related issues about the concept of suboptimal health and the diagnostic criteria. The differential diagnosis between chronic fatigue syndrome and psychosomatic diseases was made. The problems in suboptimal health research and future directions were solved

Computation of the p6p^6 order low-energy constants with tensor sources

We present the results of calculations of the $p^4$ and $p^6$ order low-energy constants for the chiral Lagrangian with tensor sources for both two and three flavors of pseudoscalar mesons. This is a generalization of our previous work on similar calculations without tensor sources in terms of the quark self-energy $\Sigma(p^2)$, based on the first principle derivation of the low-energy effective Lagrangian and computation of the low-energy constants with some rough approximations. With the help of partial integration and some epsilon relations, we find that some $p^6$ order operators with tensor sources appearing in the literature are related to each other. That leaves 98 independent terms for $n$-flavor, 92 terms for three-flavor, and 65 terms for two-flavor cases. We also find that the odd-intrinsic-parity chiral Lagrangian with tensor sources cannot independently exist in any order of low-energy expansion.Comment: 29 page

Computation of the p6 order chiral Lagrangian coefficients from the underlying theory of QCD

We present results of computing the p6 order low energy constants in the normal part of chiral Lagrangian both for two and three flavor pseudo-scalar mesons. This is a generalization of our previous work on calculating the p4 order coefficients of the chiral Lagrangian in terms of the quark self energy Sigma(p2) approximately from QCD. We show that most of our results are consistent with those we can find in the literature.Comment: 51 pages,2 figure

The Research for China Electric Power Energy Multivariate Structure Status Quo

Energy problem is one of the three global problems in new century. Being national base industry, the development of our electric power energy has played the great role in China economy developing. Now China electric power energy ‘s structure composition presents as following “the coal resources being main force, followed by pluralistic developments in which the clean energy becoming more and more important. since greatly developing the new electric energy must be the inevitable solution along our electric power sustainable development path. Utilizing the different developing mechanisms such as sustainable development, recycling economics, clean energy , the article starts from researching for the current situation of China electric energy requirements, and analyzes the structure composition of our electric power energy .at last it presents the point that greatly developing the new electric energy will play key roles and have the strategy meaning during the course of China energy sustainable development. Key words: electric power new energy, CDM, energy structure, status quo Résumé: Le problème de l’énergie est l’un des trois plus grands problèmes globaux de la nouvelle ère. L’énergie électrique, considérée comme l’énergie fondamentale d’un pays, a une grande importance pour l’économie nationale. La structure actuelle de l’énergie électrique chinoise représente plusieurs caractéristique-” le charbon comme la matière première principale, un développement multiple, et la force à paraître des énergies propres ”. La promotion des nouvelles énergies électriques est un choix logique pour poursuivre le chemin d’un développement durable. A partir du besoin actuel de l’énergie électrique de la Chine et du point du vue du développement durable, de l’économie de recyclage et du système de la promotion des éngergies propres, cet article analyse la disposition des nouvelles énergies électriques et nous propose de chercher et explorer ces nouvelles énergies électriques tout en améliorant le taux d’utilisation des énergies actuelles. Il est d’une grande importance stratégique pour le développement durable des énergies en Chine. Mots-Clés: énergie électrique, CDM, structure des énergies, état actue