scholarly journals Low-density expansion and isospin dependence of nuclear energy functional: Comparison between relativistic and Skyrme models

2007 ◽  
Vol 76 (4) ◽  
Author(s):  
L. Brito ◽  
Ph. Chomaz ◽  
D. P. Menezes ◽  
C. Providência
Keyword(s):  
Nuclear Energy ◽  
Energy Functional ◽  
Low Density ◽  
Isospin Dependence ◽  
Density Expansion

scholarly journals Probing the nuclear energy functional at band termination

2005 ◽  
Vol 71 (2) ◽  
Author(s):  
Honorata Zduńczuk ◽  
Wojciech Satuła ◽  
Ramon A. Wyss
Keyword(s):  
Nuclear Energy ◽  
Energy Functional ◽  
Band Termination

scholarly journals Nuclear energy functional with a surface-peaked effective mass: global properties

2011 ◽  
Vol 38 (2) ◽  
pp. 025101 ◽  
Author(s):  
A F Fantina ◽  
J Margueron ◽  
P Donati ◽  
P M Pizzochero
Keyword(s):  
Effective Mass ◽  
Nuclear Energy ◽  
Energy Functional ◽  
Global Properties

CONSTRAINING SYMMETRY RESTORATION WITHIN THE NUCLEAR ENERGY DENSITY FUNCTIONAL METHOD

2010 ◽  
Vol 25 (21n23) ◽  
pp. 2016-2017
Author(s):  
J. SADOUDI ◽  
T. DUGUET
Keyword(s):  
Wave Function ◽  
Energy Density ◽  
Density Functional ◽  
Nuclear Energy ◽  
Density Functional Method ◽  
Energy Functional ◽  
Functional Method ◽  
Energy Density Functional ◽  
Density Functional Methods ◽  
Functional Methods

We review the notion of symmetry breaking and restoration within the frame of nuclear energy density functional methods. We focus on key differences between wave-function- and energy-functional-based methods. In particular, we point to difficulties to formulate the restoration of symmetries within the energy functional framework.

scholarly journals A temporally cyclic growth model of urban spatial morphology in China: Evidence from Kunming Metropolis

Urban Studies ◽  
2018 ◽  
Vol 56 (8) ◽  
pp. 1533-1553 ◽  
Author(s):  
Qiyan Wu ◽  
Jianquan Cheng
Keyword(s):  
Growth Model ◽  
Economic Transition ◽  
Morphological Changes ◽  
Morphological Evolution ◽  
Public Investment ◽  
Urban Morphology ◽  
High Density ◽  
Low Density ◽  
Density Index ◽  
Density Expansion

Rapid urbanisation and complexity of political-economic transition in China has brought about continuous and remarkable changes of urban morphology over the past decades, which were driven by a mixture of spatial, social-economic and institutional forces. Understanding such urban morphological evolution requires new mixed evidence and holistic perspectives. In this paper, it is argued that two dominant types of urban growth in China: low-density expansion and high-density infill, might be driven by different forces at different stages. To interpret the processes of urban development, two easy-to-understand morphological indicators: ‘expansion-induced investment density index’ (EID) and ‘infill-induced investment density index’ (IID), are defined to measure the investment density per unit of developed land and used to compare the morphological changes between different phases in a long period by integrating spatial and socio-economic data. The temporal variation of these indicators suggests a cyclic growth model (CGM), which means the periodic switch between low-density expansion and high-density infill. Using Kunming metropolis as a case study, this paper has confirmed that its urban morphological evolution from 1950 to 2014 was periodically and reciprocally driven by a set of vis-à-vis dualistic dynamics, in which low-density expansion is led by pro-growth infrastructure-oriented public investment, while the high-density infill is activated by collective and rational actions of individual enterprises and their economic behaviours. It is concluded that the confirmed CGM model, together with two morphological indicators, offers a new holistic perspective and method to easily and integrally interpret urban morphological evolution and accordingly has potential theoretical implications for reasonably understanding the urbanisation in China.

Sign in / Sign up

Export Citation Format

Share Document