Urban renewal and development of shanghai city

Ta, Liu

doi:10.1007/bf02663374

Cited by 7 publications

(8 citation statements)

References 1 publication

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“…In the mathematical form, these multipolar structures of the magnetic field may be regarded as the combination of Beltrami flow and Taylor vortex with variable coefficients [30], which can be described as a kind of ABC manifold type with variant coefficients [31] by fitting a curve. Its pervasive vortex characteristics are formed by connecting heteroclinic orbits of the saddle point of the periphery of the closed loop.…”

Section: Discussionmentioning

confidence: 99%

Spontaneous magnetic field multipolar structure in toroidal plasmas based on 2D equilibrium

He¹,

Liu²,

Zhao³

2019

Plasma Sci. Technol.

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The multipolar magnetic field structure is investigated by the momentum conservation equation with self-consistent 3D sheared flows during transition of plasma properties from local paramagnetic to diamagnetic fields. Numerical results show that the traditional poloidal magnetic field (B P ) is one part of equilibrium magnetic fields. The non-zero-order quantities are originated from the higher-order terms of 2D equilibrium treatment based on a Fourier expansion of ψ (r, θ). The distributions of magnetic field vectors of the order of 1, 2, and 3 terms are presented respectively in two, four, and six polar fields with the local vortex structures (spontaneous magnetic connection). The excitation mechanisms of the magnetic vortices are the coupling effects of the magnetic fluid structure pattern and the toroidal effects. These results can help us understand the physical mechanism of the interaction between the external perturbation fields and control tearing modes, as well as the radial plasma flow and magnetic vortices.

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Section: Discussionmentioning

confidence: 99%

Spontaneous magnetic field multipolar structure in toroidal plasmas based on 2D equilibrium

He¹,

Liu²,

Zhao³

2019

Plasma Sci. Technol.

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“…Besides transforming a sprawling, underused area in a process of physical change, redevelopment can have a broader mission (Roberts, 2005): urbanization is widely used to rekindle weakened local economies and revive degraded built environment. The Chinese experience-particularly among coastal cities such as Shanghai and Beijingshows that leasing land to property developers has been the driving force of urban structural adjustment (Liu, 1994). Lowincome neighbourhoods have been razed, heritage sites demolished, and original residents displaced to make room for high-rise buildings, gated residential communities, and privileged urban spaces (Campanella, 2008;Chau, 2008;Pow, 2009;Tomba, 2010).…”

Section: Introductionmentioning

confidence: 99%

From planned to market economy: The rise and fall of the City of Textiles, Xi’an

Cheng

2011

Local Economy

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Urban change in north-western China, an important region in economic history terms, has received relatively scant attention in the existing literature. To help fill this gap, this article examines the evolution of a state-owned industrial area called the City of Textiles, in Xi'an, Shaanxi Province, from its establishment and rise during the planned economy to its decline, deterioration, and redevelopment in the new market economy. The article focuses particularly on the roles played by the state and other factors relevant in the transformation, as well as exploring the experiences of local residents and businesses.

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“…Consequently, a considerable proportion of scattered small rural settlements shrinks or even vanishes rapidly along with urban/town expansion ). Meanwhile, in many already urbanized areas, the policy of "Reconstructions of OldCity" can also lead to significant LULC changes (Liu 1994). Overall, these special driving forces aiming to accelerate urbanization can present some noteworthy landscape dynamics.…”

Section: Introductionmentioning

confidence: 99%

Detecting the spatial differentiation in settlement change rates during rapid urbanization in the Nanjing metropolitan region, China

Liu

Yang

et al. 2010

Environ Monit Assess

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Urbanization produced significant landscape changes throughout the world. China has been experiencing accelerated urbanization during the past decades. Rapid land use/land over conversion occurred nationwide in urbanization, manifesting noteworthy characteristics of landscape dynamics. In this study, we investigated the spatial differentiation in settlement change rates among 1-km(2) land units in the Nanjing metropolitan region, a representative rapidly urbanizing region in China. Remotely sensed detection using Landsat TM data of 1988-2006 showed that settlement increase, termed as positive growth (PG), was predominant in the study area; while settlement decrease, termed as negative growth (NG), also had a considerable proportion, which was mainly attributed to the increase of green lands and the shrink of rural settlements. Along the urban-rural gradient, PG and NG showed similar mono-peaked patterns. The urban fringe zone with a consistent width of about 4 km was identified as the hot zone of both PG and NG over the three unequal periods. For both PG and NG, high-rated changes tended to exhibit more aggregative patterns along the gradient in the urban fringe zone. Settlement changes showed apparent anisotropy across directions. The directional distribution of PG was significantly negatively correlated to the topographic variables, suggesting that the mountains constrained urban expansion in an "area-weighted inverse-distance power" form. Significant correlation between PG and NG in a time-lagged manner showed the "increase-decrease" fluctuation occurred in settlement changes, reflecting the "urban expansion-land reconfiguration" process in rapid urbanization in Nanjing.

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Urban renewal and development of shanghai city

Cited by 7 publications

References 1 publication

Spontaneous magnetic field multipolar structure in toroidal plasmas based on 2D equilibrium

Spontaneous magnetic field multipolar structure in toroidal plasmas based on 2D equilibrium

From planned to market economy: The rise and fall of the City of Textiles, Xi’an

Detecting the spatial differentiation in settlement change rates during rapid urbanization in the Nanjing metropolitan region, China

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