192,718 research outputs found
On an Open Problem by Feng Qi Regarding an Integral Inequality
In the article, a functional inequality in abstract spaces is established, which gives a new affirmative answer to an open problem posed by Feng Qi in Several integral inequalities which appeared in J. Inequal. Pure Appl.
Math. 1 (2000), no. 2, Art. 19. Moreover, some integral inequalities and a discrete inequality involving sums are deduced
On a generalization of -rings
summary:In this paper rings for which every -torsion quasi-injective module is weakly -divisible for a hereditary preradical are characterized in terms of the properties of the corresponding lattice of the (hereditary) preradicals. In case of a stable torsion theory these rings coincide with -rings investigated by J. Ahsan and E. Enochs in [1]. Our aim was to generalize some results concerning -rings obtained by J.S. Golan and S.R. L'opez-Permouth in [12]. A characterization of the -property in the category then follows as a consequence
Dataset for paper "Directivity of sound radiated from baffled rectangular plates and plate strips"
Dataset supporting the paper "Directivity of sound radiated from baffled rectangular plates and plate strips" by Qi Li and David J Thompson in Applied Acoustics.</span
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
First species of Ctenisomorphus Raffray, 1890 from China, with comments on Largeyeus J.-K. Li, 1993 (Coleoptera, Staphylinidae, Pselaphinae)
Li, Qi-Qi, Wang, Yan, Yin, Zi-Wei (2021): First species of Ctenisomorphus Raffray, 1890 from China, with comments on Largeyeus J.-K. Li, 1993 (Coleoptera, Staphylinidae, Pselaphinae). Zootaxa 5016 (4): 588-596, DOI: 10.11646/zootaxa.5016.4.
FIGURE 3. J.-K. Li in First species of Ctenisomorphus Raffray, 1890 from China, with comments on Largeyeus J.-K. Li, 1993 (Coleoptera, Staphylinidae, Pselaphinae)
FIGURE 3. J.-K. Li (1993)'s original description and figures, with captions translated to English.Published as part of Li, Qi-Qi, Wang, Yan & Yin, Zi-Wei, 2021, First species of Ctenisomorphus Raffray, 1890 from China, with comments on Largeyeus J.-K. Li, 1993 (Coleoptera, Staphylinidae, Pselaphinae), pp. 588-596 in Zootaxa 5016 (4) on page 592, DOI: 10.11646/zootaxa.5016.4.9, http://zenodo.org/record/522268
Energy cycle and bound of Qi chaotic system
© 2017 The Qi chaotic system is transformed into a Kolmogorov-type system, thereby facilitating the analysis of energy exchange in its different forms. Regarding four forms of energy, the vector field of this chaotic system is decomposed into four forms of torque: inertial, internal, dissipative, and external. The rate of change of the Casimir function is equal to the exchange power between the dissipative energy and the supplied energy. The exchange power governs the orbital behavior and the cycling of energy. With the rate of change of Casimir function, a general bound and least upper bound of the Qi chaotic attractor are proposed. A detailed analysis with illustrations is conducted to uncover insights, in particular, cycling among the different types of energy for this chaotic attractor and key factors producing the different types of dynamic modes
An Algebraic Inequality, II
In this article, using inequality between logarithmic mean and one-parameter mean, which can be deduced from monotonicity of the extended mean values, an integral analogue of J. S. Martins’ inequality is proved. An open problem is proposed
- …
