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Hefei, China

Wang X.-C.,Ningbo University | He J.-S.,Ningbo University | Li Y.-S.,USTC
Communications in Theoretical Physics

The rogue waves with a controllable center are reported for the nonlinear Schrödinger equation in terms of rational-like functions by using a direct method. The position of these solutions can be controlled by choosing different center parameters and this may describe the possible formation mechanisms for optical, oceanic, and matter rogue wave phenomenon in optical fibres, the deep ocean, Bose - Einstein condensates respectively. © 2011 Chinese Physical Society and IOP Publishing Ltd. Source

Zhang R.,University of Southampton | Wang J.,Nanjing Southeast University | Wang Z.,Tsinghua University | Xu Z.,USTC | And 2 more authors.
IEEE Wireless Communications

At the time of this writing, there is substantial research interest in the subject of visible light communications (VLC) owing to its ability to offer significant traffic offloading potential in highly crowded radio frequency (RF) scenarios. We introduce the user-centric design of VLC for heterogeneous networks (HetNet), where three key aspects are identified and elaborated on: signal coverage quality, system control, and service provision aspects. More explicitly, the concepts of amorphous cell formation as well as separated up-link (UL) and down-link (DL), decoupled data and control, dynamic load balancing (LB), etc., all demand radically new thinking. The advocated user-centric VLC design is of key significance in the small-cell scenarios of the emerging 5G design philosophy. © 2002-2012 IEEE. Source

Sultana R.A.,USTC
Advances in Environmental Biology

The present paper examines the socio-cultural determinants of women representation at the managerial positions in Bangladesh. The study presents the findings of research and women's advancement to the managerial positions. In this research, 'Gender Organization System' (GOS) model has been used for the study purpose. The main objectives of this paper are to take a look at the position of women as mangers,to examine their strengths and weakness as competent managers and to find ways of improving their managerialskills, qualities,capabilitiesas part of women's manager in the changing socio-economic environment of Bangladesh. Both quantitative and qualitative techniques have been used for data analyses. The paper offers some policy measures to facilitate women managers toward their career advancement by reducing the impact of gender-bias in the management of different types of business, social, cultural, government organizations of Bangladesh in particular and in South Asian Countries in general. © 2014 AENSI Publisher All rights reserved. Source

Fan L.,KAUST | Fan L.,Zhejiang University | Musialski P.,Vienna University of Technology | Liu L.,USTC | And 2 more authors.
ACM Transactions on Graphics

(Figure Presented) We present a method to complete missing structures in facade layouts. Starting from an abstraction of the partially observed layout as a set of shapes, we can propose one or multiple possible completed layouts. Structure completion with large missing parts is an ill-posed problem. Therefore, we combine two sources of information to derive our solution: the observed shapes and a database of complete layouts. The problem is also very difficult, because shape positions and attributes have to be estimated jointly. Our proposed solution is to break the problem into two components: a statistical model to evaluate layouts and a planning algorithm to generate candidate layouts. This ensures that the completed result is consistent with the observation and the layouts in the database. 2014 Copyright held by the Owner/Author. Publication rights licensed to ACM. Source

Li C.,Ningbo University | He J.,Ningbo University | Su Y.,USTC | Su Y.,Tongji University
Journal of Mathematical Physics

In this paper, we define Orlov-Schulman's operators M L, M R, and then use them to construct the additional symmetries of the bigraded Toda hierarchy. We further show that these additional symmetries form an interesting infinite-dimensional Lie algebra known as a Block type Lie algebra, whose structure theory and representation theory have recently received much attention in the literature. By acting on two different spaces under the weak W-constraints, we find in particular two representations of this Block type Lie algebra. © 2012 American Institute of Physics. Source

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