Hengyang Normal University

About: Hengyang Normal University is a education organization based out in Hengyang, China. It is known for research contribution in the topics: Graphene & Adsorption. The organization has 1087 authors who have published 1280 publications receiving 13850 citations. The organization is also known as: Hengyang Teachers' College & Héngyáng Shīfàn Xuéyuàn.

3-[4-(Dimethyl-amino)phen-yl]-1-(2-pyrrol-yl)prop-2-en-1-one.

Abstract: The molecule of the title compound, C15H16N2O, is non-planar with a dihedral angle of 16.0 (1)° between the pyrrole and benzene rings. The ketone double-bond displays an s–cis conformation with an O=C—C=C torsion angle of 7.9 (3) and an intramolecular C—H⋯O hydrogen bond. In the crystal structure, adjacent mol­ecules are paired through N—H⋯O hydrogen bonds into centrosymmetric dimers.

Full and partial shape similarity through sparse descriptor reconstruction

Abstract: We introduce a novel approach to measuring similarity between two shapes based on sparse reconstruction of shape descriptors. The main feature of our approach is its applicability in situations where either of the two shapes may have moderate to significant portions of its data missing. Let the two shapes be A and B. Without loss of generality, we characterize A by learning a sparse dictionary from its local descriptors. The similarity between A and B is defined by the error incurred when reconstructing B’s descriptor set using the basis signals from A’s dictionary. Benefits of using sparse dictionary learning and reconstruction are twofold. First, sparse dictionary learning reduces data redundancy and facilitates similarity computations. More importantly, the reconstruction error is expected to be small as long as B is similar to A, regardless of whether the similarity is full or partial. Our proposed approach achieves significant improvements over previous works when retrieving non-rigid shapes with missing data, and it is also comparable to state-of-the-art methods on the retrieval of complete non-rigid shapes.

Translating Chinese philosophy on its own terms: an interview with Professor Roger T. Ames

Abstract: Roger T. Ames is a preeminent scholar and translator of classical Chinese philosophy. Through his interpretive studies and translations, he has probably done more than anyone else to promote literacy on Chinese philosophy in the English-speaking world. His translations are widely appreciated by the readers who are interested in Chinese philosophy. For example, his translation of Sun-Tzu: the Art of Warfare is used at West Point as a textbook. He has also received some prizes issued by the Chinese government like “Confucius Culture Prize” for his successful promotion of Chinese culture. The following is the edited transcript of an interview with Professor Roger Ames who is working at Philosophy Department, University of Hawaii at Manoa. The interview was conducted in 2014 by Xiaoli Tan, a professor of English at Hengyang Normal University, also a visiting scholar to UHM and Tianyuan Huang, a Ph.D. candidate working on Chinese Philosophy and Politics at UHM. The questions discussed include the general situa...

Propagation properties of quadrupole breather in nonlinear media with a nonlocal exponential-decay response

Abstract: We investigate the propagation properties of quadrupole breather in nonlinear media with a nonlocal exponential-decay response by using the variational method and the equivalent particle method The analytical solution of the quadrupole breather is obtained The breather beamwidth, the wavefront curvature, the intensity pattern, and the comparisons between the analytical quadrupole breather solution and the numerical simulations of the nonlocal nonlinear Schrodinger equation in the case of highly nonlocal nonlinearity are analyzed The results show that the analytical solution is in good agreement with the numerical simulations at near-critical power incidence Furthermore, we find that the envelope of the difference value curve between the analytical solution and the numerical simulation can be described as a logarithmic function under different input powers It is useful for further understanding the propagation properties of optical breathers in nonlocal nonlinear media and might be of interest to the applications in error analysis and precision measurements

Evolution of rotated anomalous hollow Gaussian beams in nonlinear media with a strongly spatial nonlocality

Abstract: In this paper, using the rotating coordinates, we take the anomalous hollow Gaussian beam as an example to investigate the evolution of an ellipse-symmetric beam in strongly nonlocal nonlinear media. A set of analytical expressions are obtained and some numerical simulations are carried out to illustrate the relation between the evolution characteristics and the rotation angle. It is found that the evolution properties, such as the critical powers, beam widths, and intensity distributions in x and y directions, are all variational with the rotation angle.