Results 11 to 20 of about 1,948,788 (308)

Urban Structure and Growth [PDF]

open access: yesReview of Economic Studies, 2003
Most economic activity occurs in cities. This creates a tension between local increasing returns, implied by the existence of cities, and aggregate constant returns, implied by balanced growth.
Esteban Rossi-Hansberg, Mark L.J. Wright
core   +9 more sources

Stochastic modelling of urban structure. [PDF]

open access: yesProc Math Phys Eng Sci, 2018
The building of mathematical and computer models of cities has a long history. The core elements are models of flows (spatial interaction) and the dynamics of structural evolution. In this article, we develop a stochastic model of urban structure to formally account for uncertainty arising from less predictable events.
Ellam L   +3 more
europepmc   +8 more sources

Urban Evolution: The Role of Water [PDF]

open access: yes, 2015
The structure, function, and services of urban ecosystems evolve over time scales from seconds to centuries as Earth’s population grows, infrastructure ages, and sociopolitical values alter them.
Belt, Kenneth T.   +6 more
core   +3 more sources

Research on Failure Characteristics and Zoning Control Technology of Thick-Soft Surrounding Rock for Deep Gob-Side Entry Retaining

open access: yesShock and Vibration, 2020
Controlling the large deformation caused by bed separation failure of thick and soft surrounding rock in gob-side entry retaining is difficult. The deformation and failure modes of thick and soft surrounding rock are summarized and classified based on ...
Jingke Wu   +8 more
doaj   +1 more source

The inhabited environment, infrastructure development and advanced urbanization in China's Yangtze River Delta Region [PDF]

open access: yes, 2016
This paper analyzes the relationship among the inhabited environment, infrastructure development and environmental impacts in China's heavily urbanized Yangtze River Delta region.
Chen, W   +6 more
core   +2 more sources

An object-based classification approach for mapping "migrant housing" in the mega-urban area of the Pearl River Delta (China) [PDF]

open access: yes, 2011
Urban areas develop on formal and informal levels. Informal development is often highly dynamic, leading to a lag of spatial information about urban structure types.
Baatz   +13 more
core   +2 more sources

Some Features of the Historical Topography of Samarkand of the 17th Century

open access: yesПоволжская археология, 2022
The authors analyze the main points of the town planning history of Samarkand in the 17th century. On the basis of written data, archaeological sources and unpublished archival materials, a reconstruction of the plan of the central part of Samarkand in ...
Malikov Azim M. , Umarov Anvar Sh.
doaj   +1 more source

Low genetic variability, female-biased dispersal and high movement rates in an urban population of Eurasian badgersMeles meles [PDF]

open access: yes, 2008
1. Urban and rural populations of animals can differ in their behaviour, both in order to meet their ecological requirements and due to the constraints imposed by different environments.
Bijlsma   +66 more
core   +2 more sources

A global fingerprint of macro-scale changes in urban structure from 1999 to 2009 [PDF]

open access: yes, 2013
Urban population now exceeds rural population globally, and 60–80% of global energy consumption by households, businesses, transportation, and industry occurs in urban areas.
Friedl, Mark A   +3 more
core   +2 more sources

The anatomy of urban social networks and its implications in the searchability problem [PDF]

open access: yes, 2014
The appearance of large geolocated communication datasets has recently increased our understanding of how social networks relate to their physical space. However, many recurrently reported properties, such as the spatial clustering of network communities,
Benito, R. M.   +6 more
core   +4 more sources

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