Results 101 to 110 of about 95,355 (231)

Primary metabolites in root exudates are not affected by long‐term soil warming in a temperate forest

open access: yesFunctional Ecology, Volume 40, Issue 2, Page 417-432, February 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Primary metabolites in root exudates are essential for plant nutrition and rhizosphere microbiome function, potentially responding sensitively to climate warming. However, the effects of long‐term soil warming on exudate metabolites in forests remain unclear.
Xiaofei Liu   +6 more
wiley   +1 more source

A geometrical result regarding time-of-arrival lightning location [PDF]

open access: yes
One reason for investigating Lightning Detection And Ranging (LDAR) is to validate data from the Optical Transient Detector (OTD). A Time-Of-Arrival (TOA) procedure may be used with radio wave portions of lighting signatures.
Solakiewicz, Richard
core   +1 more source

Performance Analysis for Time-of-Arrival Estimation with Oversampled Low-Complexity 1-bit A/D Conversion

open access: yes, 2017
Analog-to-digtial (A/D) conversion plays a crucial role when it comes to the design of energy-efficient and fast signal processing systems. As its complexity grows exponentially with the number of output bits, significant savings are possible when ...
Stein, Manuel S.
core   +1 more source

Impact and Variability of Cloud Types on Earth's Top‐of‐Atmosphere Energy Balance in the Tropics: A 19‐Year Analysis of High‐Resolution CERES Data

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.
Abstract Cloud radiative effects (CREs) play a critical role in Earth's energy balance and climate variability, yet the variability and specific contributions of distinct cloud types remain poorly understood. Using the Clouds and the Earth's Radiant Energy System FluxByCldTyp data set, this study investigates how temporal variations in total top‐of‐the‐
Kuan‐Man Xu, Moguo Sun
wiley   +1 more source

Cramer-Rao bounds in the estimation of time of arrival in fading channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2018
This paper computes the Cramer-Rao bounds for the time of arrival estimation in a multipath Rice and Rayleigh fading scenario, conditioned to the previous estimation of a set of propagation channels, since these channel estimates (correlation between ...
René Játiva, Josep Vidal
doaj   +1 more source

State‐Dependence of Polar Amplification in an Idealized GCM

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Polar amplification (PA) is a robust feature of contemporary climate change, but its state‐dependence across different climate conditions is poorly understood despite potential relevance to paleoclimate records and future projections. Here we examine the state‐dependence of PA across a wide range of climate states in an idealized moist general
Andrew I. L. Williams, Timothy M. Merlis
wiley   +1 more source

Moving Target At Constant Velocity Localization Using TOA Measurements From Single Moving Receiver With Unknown Signal Period

open access: yesIEEE Open Journal of Signal Processing
In this article, we consider using time-of-arrival (TOA) measurements from a single moving receiver to locate a moving target at constant velocity that emits a periodic signal with unknown signal period.
Yanbin Zou, Jingna Fan, Zekai Zhang
doaj   +1 more source

Maximum likelihood localization: When does it fail?

open access: yesICT Express, 2016
Maximum likelihood is a criterion often used to derive localization algorithms. In particular, in this paper we focus on a distance-based algorithm for the localization of nodes in static wireless networks. Assuming that Ultra Wide Band (UWB) signals are
Stefania Monica, Gianluigi Ferrari
doaj   +1 more source

Positioning of aquatic animals based on time-of-arrival and random walk models using YAPS (Yet Another Positioning Solver)

open access: yesScientific Reports, 2017
Aquatic positional telemetry offers vast opportunities to study in vivo behaviour of wild animals, but there is room for improvement in the data quality provided by current procedures for estimating positions.
H. Baktoft   +3 more
semanticscholar   +1 more source

Evolution of Near‐Term Atmospheric Methane and Associated Temperature Response Under the Global Methane Pledge: Insights From an Earth System Model

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Methane is a powerful greenhouse gas with a shorter lifetime than carbon dioxide (CO2), making it an important target for near‐term climate action. The Global Methane Pledge (GMP) aims to cut anthropogenic methane emissions by 30% from 2020 levels by 2030. Using an Earth system model with interactive CH4 sources and sinks, we assess the Pledge'
Ulas Im   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy