Time filter

Source Type

Chenjiaba, China

Chongqing Three Gorges University , established in 1956, is a national comprehensive university in China.CTGU is located in Wanzhou, the second largest city in Chongqing Municipality at the heart of the Three Gorges Dam Areas by the Changjiang River. It presently has a total enrolment of 13,000 full-time domestic students and international students; and a staff of about 1,000, including about 300 professors and associate professors, about 400 Master's Degree or Doctor's Degree winners, and more than 60 external part-time Professors and international teachers. CTGU has 14 teaching faculties. It has more than 70 specialties for 3-year students and 4-year students, which cover eight disciplinary domains. It has prominent advantages in the teaching and research of the specialties of marketing, international trade, environmental protection, folk art, languages and literature, physical education, tourism, biology, chemical engineering, ethnonymics, and occupies the leading position in China in some of the specialties and subjects .CTGU has established wide cooperation and exchange relationship with many universities both at home and abroad, and has developed teachers/students exchange and academic exchange. In 2007, CTGU established collaboratively a Confucius Institute at Community College of Denver in Colorado, USA. Wikipedia.

Li B.,Chongqing Three Gorges University | Li B.,Chongqing University | Yao R.,University of Reading
Building Research and Information | Year: 2012

Rapid urbanization in China has resulted in great demands for energy, resources and pressure on the environment. The progress in China's development is considered in the context of energy efficiency in the built environment, including policy, technology and implementation. The key research challenges and opportunities are identified for delivering a low-carbon built environment. The barriers include the existing traditional sequential design process, the lack of integrated approaches and insufficient socio-technical knowledge. A proposed conceptual systemic model of an integrated approach identifies research opportunities. The organization of research activities should be initiated, operated and managed in a collaborative way among policy-makers, professionals, researchers and stakeholders. More emphasis is needed on integrating social, economic and environmental impacts in the short, medium and long terms. An ideal opportunity exists for China to develop its own expertise, not merely in a technical sense but in terms of vision and intellectual leadership in order to flourish in global collaborations. © 2012 Taylor & Francis. Source

Wang P.,Chongqing Three Gorges University
Applied Computational Electromagnetics Society Journal | Year: 2013

In this letter, a compact planar ultrawideband (UWB) monopole antenna with excellent band-rejection characteristics is proposed for UWB communications applications. To achieve band-rejection filter property at the WiFi / WiMAX bands, two different types of slots: sloped open-ended Z-shaped slot and split rectangle ring slot on radiation patch, are introduced to form two stop-bands. The measured and simulated results show that the band-notched characteristics not only bring good rejection frequency, but also improved the skirt area in the band-notched frequency, and the proposed antenna has nearly omni-directional radiation pattern, moderate gain, and low cross-polarization level, which is suitable for UWB communication applications. ©2013, The Applied Computational Electromagnetics Society. Source

Chen Y.,South China Normal University | Lu Z.,Chongqing Three Gorges University
Finite Elements in Analysis and Design | Year: 2010

In this paper we study the fully discrete mixed finite element methods for quadratic convex optimal control problem governed by parabolic equations. The space discretization of the state variable is done using usual mixed finite elements, whereas the time discretization is based on difference methods. The state and the co-state are approximated by the lowest order RaviartThomas mixed finite element spaces and the control is approximated by piecewise constant functions. By applying some error estimates techniques of standard mixed finite element methods, we derive a priori error estimates both for the coupled state and the control approximation. Finally, we present some numerical examples which confirm our theoretical results. © 2010 Elsevier B.V. All rights reserved. Source

In this paper, an endoreversible Carnot heat engine with irreversible heat transfer processes is analyzed based on generalized heat transfer law. The applicability of the entropy generation minimization, exergy analyses method, and entransy theory to the analyses is discussed. Three numerical cases are presented. It is shown that the results obtained from the entransy theory are different from those from the entropy generation minimization, which is equivalent to the exergy analyses method. For the first case in which the application preconditions of the entropy generation minimization and entransy loss maximization are satisfied, both smaller entropy generation rate and larger entransy loss rate lead to larger output power. For the second and third cases in which the preconditions are not satisfied, the entropy generation minimization does not lead to the maximum output power, while larger entransy loss rate still leads to larger output power in the third case. For the discussed cases, the concept of entransy dissipation is not applicable for the analyses of output power. The problems in the negative comments on the entransy theory are pointed out and discussed. The related researchers are advised to focus on some new specific application cases to show if the entransy theory is the same as some other theories. © 2015 Chinese Physical Society and IOP Publishing Ltd. Source

Lei Y.,Chongqing Three Gorges University
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The title compound, C 14H 9Cl 3N 2O, adopts an E configuration about the methylidene unit and the two aromatic rings form a dihedral angle of 6.6 (2)°. In the crystal, molecules are linked via N - H⋯O hydrogen bonds, forming C(4) chains propagating in [001]. C - H⋯O interactions reinforce the chains. Source

Discover hidden collaborations