Results 71 to 80 of about 3,073 (205)

Permafrost Distribution in the Canadian Rockies: Key Variables Influencing Patch‐Scale Variability

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The spatial distribution of permafrost in mountainous regions is influenced by various factors such as topography, climate, vegetation, and substrate. Despite the existence of comprehensive permafrost maps at national and global levels, they fail to accurately represent the patch‐scale (e.g., < 25 m) permafrost distribution in characteristic ...
Gerardo Zegers, Masaki Hayashi, Pablo A. Mendoza   +2 more
wiley   +1 more source

Transformation of Rayleigh Distribution, Properties, and Application [PDF]

BIO Web of Conferences
The need to develop the theory of statistics and its properties follows from the fact that many types of data cannot be fitted by classical distributions.
Kadhim Althebhawi Sami, Al-Haboobi Anas, Fakhri Altalaqani Sara, Al-hchimy Zainab, AL-Adilee Ahmed   +4 more
doaj   +1 more source

Accounting for animal movement during aerial imaging surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Animals are not stationary during aerial surveys; if their movements are related to the movement of the aerial platform, then bias can be introduced into subsequent population count estimates. We sought to establish a framework for assessing the impacts of animal movement on count error and platform bias by comparing aggregated counts and relative ...
Rowan L. Converse, Christopher D. Lippitt, Steven E. Sesnie, David R. Stewart, Matthew J. Butler, Grant M. Harris   +5 more
wiley   +1 more source

Directive Antenna Clutter Loss in Slant Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán, Vicente Pastoriza‐Santos, Fernando Machado Domı́nguez, Thomas Prechtl, Pavel Pechac   +4 more
wiley   +1 more source

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Stochastic Complexity of Rayleigh and Rician Data with Normalized Maximum Likelihood

Stats
The Rician distribution, which arises in radar, communications, and magnetic resonance imaging, is characterized by a noncentrality parameter and a scale parameter.
Aaron Lanterman
doaj   +1 more source

Linguistic Variation across Instructional Segments in International Teaching Assistants' Discourse: A Corpus‐Based Analysis

TESOL Quarterly, EarlyView.
Abstract This study investigates internal linguistic variation in the instructional discourse of international teaching assistants (ITAs) by segmenting their mini‐lecture performances into four discourse types: introduction, lecture, conclusion, and audience interaction.
Heesun Chang, Hector Rivera
wiley   +1 more source

Evaluating the Discrete Generalized Rayleigh Distribution: Statistical Inferences and Applications to Real Data Analysis

Mathematics
Various discrete lifetime distributions have been observed in real data analysis. Numerous discrete models have been derived from a continuous distribution using the survival discretization method, owing to its simplicity and appealing formulation.
Hanan Haj Ahmad, Dina A. Ramadan, Ehab M. Almetwally   +2 more
doaj   +1 more source

Approximation Of Generalized Compound Rayleigh Distribution With Bayes For General Entropy

İlköğretim Online, 2023
This paper provides the Bayes estimate ofscale parameterα of Generalized Compound Rayleigh distribution under the General Entropyloss function (GELF). Lindley approximation procedure gives the Approximate Bayes estimate of parameter β of Generalized Compound Rayleigh distribution under the GELF.
Uma Srivastava, Parul Yadav, Satya Prakash Singh   +2 more
openaire   +1 more source

Wind, waves, wing loading and the flight energetics of giant petrels

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Wind is a major factor driving seabird movement and energetics, the effects of which are modulated by morphology. Developments in tagging technology now make it possible to test predictions from aerodynamic theory about the effects of wind on flight performance in free ...
Madeline E. Hallet, Richard A. Phillips, Ian J. Maywar, Lesley H. Thorne   +3 more
wiley   +1 more source