Results 71 to 80 of about 91,037 (199)

A Bayesian parameter estimation approach to pulsar time-of-arrival analysis

, 2011
The increasing sensitivities of pulsar timing arrays to ultra-low frequency (nHz) gravitational waves promises to achieve direct gravitational wave detection within the next 5-10 years.
, A Lommen, C Messenger, Cognard I, Gelman A, Gilks W R, Hobbs G, Hobbs G, Hobbs G, Jenet F, Jenet F A, Kinkhabwala A, Marinari E, Mira A, Mukherjee P, P Demorest, S Ransom, Sivia D S, Trias M Vecchio A Veitch J   +18 more
core   +3 more sources

Measurement and modeling of diffuse ultraviolet radiation: A review

Photochemistry and Photobiology, EarlyView.
Solar UV radiation consists of direct and diffuse UV components. The diffuse component contributes to the exposure received by humans and to the risk of skin cancer and sun‐related eye disorders. This review aims to determine future research directions for the measurement and modeling of diffuse solar UV radiation.
Alfio V. Parisi, Joanna Turner, Abdurazaq Amar, Damien P. Igoe, Peter Schouten, Nawin Raj, Nathan Downs, Harry Butler   +7 more
wiley   +1 more source

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

Methods in Ecology and Evolution
Underwater acoustic telemetry positioning is widely used to track the fine‐scale movements of aquatic animals. In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that can severely reduce the ...
James Adam Campbell, Samuel Joseph Shry, Petter Lundberg, Olle Calles, Franz Hölker   +4 more
doaj   +1 more source

Room geometry estimation from a single channel acoustic impulse response [PDF]

, 2013
For a 2D rectangular room of unknown dimensions and with unknown source and microphone positions, the times of arrival of reflections can be described in terms of im-age source positions.
Brookes, M, Moore, AH, Naylor, PA
core  

Non-line-of-sight Node Localization based on Semi-Definite Programming in Wireless Sensor Networks

, 2009
An unknown-position sensor can be localized if there are three or more anchors making time-of-arrival (TOA) measurements of a signal from it. However, the location errors can be very large due to the fact that some of the measurements are from non-line ...
Chen, Hongyang, Lui, Kenneth W. K., Poor, H. Vincent, So, H. C., Wang, Zizhuo   +4 more
core   +2 more sources

Impact of Urban Environmental Indices on Surface Temperature in Dhaka: A Policy‐Oriented Perspective

Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.
ABSTRACT Dhaka's rapid urban expansion has intensified surface heating and degraded environmental quality. This study analyzes environmental indices from 2015 to 2025, revealing a strong positive relationship between built‐up growth and land surface temperature, and negative associations with vegetation and water presence.
Milon Bokshi, Md. Jakir Hossain, Md. Munir Mahmud   +2 more
wiley   +1 more source

Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]

Scientific Technical Review, 2017
The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan, Vračar Miodrag, Kozić Nadica, Brusin Radiana, Stanojević Milan   +4 more
doaj  

Hybrid Data Fusion Techniques for Localization in UWB Networks [PDF]

, 2009
International audienceIn this paper, we exploit the concept of data fusion in UWB (Ultra Wide Band) localization systems by using different location-dependent observables.
Avrillon, Stéphane, Laaraiedh, Mohamed, Uguen, Bernard   +2 more
core   +2 more sources

IUCN Red List Regional Assessment of the Flora of Niue Utilising Indigenous Local Knowledge and Botanical Information

Journal of the Royal Society of New Zealand, Volume 56, Issue 2, April 2026.
A regional assessment of the indigenous vascular plants of Niue is presented using the IUCN Red List criteria. The assessment was undertaken during a community workshop that drew on the indigenous local knowledge and scientific information. The assessment comprised 197 named taxa and 8 indeterminate entities, with 4 (2.0%) taxa assessed as Extinct and ...
Peter B. Heenan, Huggard E. Tongatule, Workshop Panel   +2 more
wiley   +1 more source

A Statistically Modelling Method for Performance Limits in Sensor Localization

, 2011
In this paper, we study performance limits of sensor localization from a novel perspective. Specifically, we consider the Cramer-Rao Lower Bound (CRLB) in single-hop sensor localization using measurements from received signal strength (RSS), time of ...
Akyildiz, Baoqi Huang, Bishop, Brian D.O. Anderson, Cao, Changbin Yu, Chitte, Dissanayake, Dogcancay, Hoeffding, Kaemarungsi, Martinez, Pathirana, Patwari, Rappaport, So, Tao Li, Xu, Zhu   +18 more
core   +1 more source