Results 11 to 20 of about 1,967,339 (308)

An Older Population Increases Estimated COVID-19 Death Rates in Rural America [PDF]

, 2020
In this brief, author Kenneth Johnson estimates the influence that the local age structure has on coronavirus death rates among those exposed to it in rural and urban counties in the United States. He reports that the older age structure of rural America
Johnson, Kenneth M.
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Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure

Shock and Vibration, 2021
A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs.
Botan Shen, Jin Wang, Weibing Xu, Yanjiang Chen, Weiming Yan, Jianhui Huang, Zhenyun Tang   +6 more
doaj   +1 more source

Temperature time-lag effect elimination method of structural deformation monitoring data for cable-stayed bridges

Case Studies in Thermal Engineering, 2023
In structural health monitoring, temperature time-lag effect inevitably affects the state assessment and damage warning of structures. Most of the existing studies focused on using machine learning models to eliminate temperature time-lag effect, but the
Hanwen Ju, Wenqiang Zhai, Yang Deng, Min Chen, Aiqun Li   +4 more
doaj   +1 more source

Habitat structure: a fundamental concept and framework for urban soil ecology [PDF]

, 2007
Habitat structure is defined as the composition and arrangement of physical matter at a location. Although habitat structure is the physical template underlying ecological patterns and processes, the concept is relatively unappreciated and underdeveloped
BC Scharenbroch, BE Wolfe, C Kremen, C Milesi, CA Martin, D Hope, D Hope, DA Wardle, DM Green, DT Bolger, E Shochat, E Shochat, EC Mueller, ED McCoy, ED McCoy, EJ Rebek, GA Langellotto, GG Whitney, GW Korthals, H Gibb, J Tews, JI Nassauer, JL Avondet, JM Grove, JP Kaye, JP Kaye, JP Kaye, K Lorenz, K Thompson, LA Baker, LB Byrne, LB Byrne, LB Byrne, Loren B. Byrne, M Alberti, M Guerra, MA Pavao-Zuckerman, MJ McDonnell, MM Carreiro, MW Beck, NB Grimm, NE Golubiewski, NE McIntyre, NL Law, PJ Craul, PM Groffman, PM Shrewsbury, R Geiger, R Pouyat, RD Bornstein, RS Ostfeld, SB Celestian, SH Faeth, SH Faeth, SK Bramen, SS Bell, STA Pickett, T Miyashita, T Montague, TP Nuhn, VT Eviner, W Zhu, Y Natuhara   +62 more
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Study on splitting tensile strength of interface between the full lightweight ceramsite concrete and ordinary concrete

Case Studies in Construction Materials, 2023
As a common lightweight aggregate concrete, the full lightweight ceramsite concrete has a very good engineering prospect, especially in the repair and reinforcement of existing concrete buildings. However, there were few studies on this aspect.
Hongbing Zhu, Zhenghao Fu, Ye Wang, Na Zhang   +3 more
doaj   +1 more source

Structuring urban data

The Visual Computer, 2013
Geometric city modeling is an open problem without standard solutions. Within this problem, there appear several sub-problems that must be faced, like the accurate modeling of streets, buildings and other architectonic structures. One important source of geographical information is (measured) cadastral urban data.
Oriol Pueyo, Gustavo Patow
openaire   +2 more sources

Urban Evolution: The Role of Water [PDF]

, 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., Kaushal, Sujay S., Mayer, Paul M., McDowell, William H., Newcomer Johnson, Tamara A., Pennino, Michael J., Wollheim, Wilfred M.   +6 more
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Research on Failure Characteristics and Zoning Control Technology of Thick-Soft Surrounding Rock for Deep Gob-Side Entry Retaining

Shock 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, Wenbin Zhou, Hong Tao, Haowen Bai, Wei Yin, Wenhu Gu, Peng Zhang, Zejun Liu, Jiao Zhang   +8 more
doaj   +1 more source

Spatial segregation and urban structure [PDF]

Journal of Regional Science, 2019
AbstractIn this paper, we develop a model of spatial segregation mediated by competitive land prices. Agents of two groups consume city land and benefit from social interactions. Because of cultural or ethnic differences, intragroup interactions are more frequent than intergroup ones.
Mossay P, Picard P
openaire   +5 more sources

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

Поволжская 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