Results 101 to 110 of about 1,044 (284)

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

open access: yesHigh Voltage, EarlyView.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma   +4 more
wiley   +1 more source

Hurricane‐induced risk contagion in commercial real estate: Evidence from Hurricane Sandy

open access: yesReal Estate Economics, EarlyView.
Abstract This study examines how hurricane‐induced destruction affects the prices of nearby undamaged commercial real estate properties, using Hurricane Sandy as a natural experiment. Using Real Capital Analytics transaction records spatially merged with Federal Emergency Management Agency building‐level damage data, we empirically employ a difference ...
Lu Fang   +3 more
wiley   +1 more source

Conformal recurrent Kӓhler spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru
In this paper we study pseudo-Riemannian spaces with recurrent tensor of conformal curvature, which admit a Kähler structure. It is proved that Kähler conformally recurrent spaces other than recurrent spaces do not exist, if their dimension is four ...
Olexandr Savchenko   +2 more
doaj   +1 more source

Curvature Tensors and the Third Type Almost Geodesic Mappings [PDF]

open access: yes, 2015
Changes of curvature tensors of a non-symmetric affine connection space under the third type almost geodesic mappings of both the first and the second type are given in this paper. These curvature tensors are firstly presented as functions of a curvature
Vesić, Nenad O.
core  

On canonical almost geodesic mappings which preserve the weyl projective tensor

open access: yes, 2017
We study a partial case of canonical almost geodesic mappings of the first type of spaces with affine connection that preserve Weyl projective curvature tensor and certain other tensors.
J. Mikeš   +7 more
core   +1 more source

Is the rent too high? Land ownership and monopoly power

open access: yesReal Estate Economics, EarlyView.
Abstract Pricing power in real estate markets can reduce housing supply and redevelopment relative to the social optimum. We show how pricing power interacts with popular redevelopment subsidies and zoning regulations. Using building‐level rental income data from NYC, we find that increased concentration is correlated with increased rents.
C. Luke Watson, Oren Ziv
wiley   +1 more source

The company you keep: The influence of popular delinquents and deviant brokers on offending trajectories

open access: yesCriminology, EarlyView.
Abstract Research on how delinquent peer associations affect individuals’ life courses is limited. This paper addresses this gap by examining delinquent peer network characteristics and their impact on offending trajectories through social network analysis (SNA) and group‐based trajectory modeling (GBTM).
Daniel Trovato
wiley   +1 more source

A NOTE ON SPECIAL GEODESIC MAPPINGS ON RIEMANNIAN MANIFOLDS

open access: yes, 2015
In this paper, we have studied some properties of spe-cial geodesic mappings on Riemannian manifolds. We have shownthat if f : (Mn; g) ! ( Mn; g) is a special geodesic mapping ofa at Riemannian manifold (Mn; g) onto a Riemannian manifold( Mn; g), then Mn
R. N. SINGH, SURENDRA KUMAR PAL, M. K. PANDEY
core  

RAPID: Real‐time animal pattern re‐identification on edge devices, an open‐source tool for field deployment

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Automatic re‐identification of animals has significant potential to address pressing ecological and conservation challenges through improved population monitoring, individual health assessment and detailed behavioural analyses. Although numerous computer‐vision‐based solutions have been proposed and many achieve high accuracy, most remain ...
András Zábó   +5 more
wiley   +1 more source

A Threat‐Scoring Framework Using Crowdsourced Data Indicates High Threat Levels in Fossorial Shieldtail Snakes

open access: yesAnimal Conservation, EarlyView.
Reliable estimates of species distributions are crucial for understanding their conservation needs. Yet for many species, IUCN largely relies on expert‐drawn ranges, which are often inaccurate. Focusing on shieldtail snakes in peninsular India, we combined citizen science, literature, field, and museum records to create improved distribution maps for ...
Anuj Shinde   +3 more
wiley   +1 more source

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