Results 101 to 110 of about 6,825,486 (291)

ESTIMATION OF PARAMETERS OF A LOGNORMAL DISTRIBUTION

Taiwanese Journal of Mathematics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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

Goodbye LogNormal Distribution

, 2022
AbstractThe R-scripts presented and developed in the prior chapters assumed an investment return generating process that is both static and LogNormal, via the basic function. Indeed, had this work been done in the 1970s, or perhaps the 1670s when national (versus natural) tontines were first launched, that might have been sufficient.
openaire   +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

A Platform for the Actuation of Magnetically Labeled Skeletal Muscle Cells Using Dynamic Magnetic Stimulation

Small, EarlyView.
A magnetic stimulation platform for the remote stimulation of cells is presented, consisting of a magnetic stimulator and magnetic microspheres. Skeletal muscle cells are labeled with magnetic microspheres, which act as local magnetic actuators on the cells upon application of the magnetic field.
Tayná C. Rodrigues, Anna‐Lena Bauknecht, Anna Gioran, Sabine Rosenfeldt, Daniel Dickes, Johann Schorzmann, Frank Döpper, Elisabetta A. Cavalcanti‐Adam, Michael Maier, Reinhard Richter, Marissa K. Caldow, Gordon S. Lynch, Daniel E. Heath, Andrea J. O'Connor, Sahar Salehi   +14 more
wiley   +1 more source

Quantitative Analysis of Size‐Dependent Structural Disorder in Ruthenium Nanoparticles by Crystal PDF Full‐Space Refinement

Small Methods, EarlyView.
A crystal PDF full‐space refinement approach integrates Bragg diffraction and total scattering to evaluate stacking faults and PDF degradation caused by point defects in ruthenium nanoparticles. This method unveils distinct size‐dependent stacking evolution in fcc‐ and hcp‐based systems, providing a unified and quantitative approach for nanoscale ...
Satoshi Hiroi, Hirotaka Ashitani, Okkyun Seo, Jaemyung Kim, Chulho Song, Loku Singgapulige Rosantha Kumara, Chen Yanna, Koji Ohara, Kohei Kusada, Hiroshi Kitagawa, Osami Sakata   +10 more
wiley   +1 more source

Assessing the fire resistance of damaged reinforced concrete frames: A comparative study between 2D and 3D frames

Structural Concrete, EarlyView.
Abstract Post‐earthquake fires pose a significant threat to urban environments, with potentially catastrophic consequences for buildings and infrastructure. To enhance understanding and mitigate these risks, this study conducts a comparative analysis of post‐earthquake fire (PEF) in two‐dimensional (2D) and three‐dimensional (3D) reinforced concrete ...
Hugo Vitorino, Paulo Vila Real, Carlos Couto, Hugo Rodrigues   +3 more
wiley   +1 more source

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

Structural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento, Jaime Gonzalez‐Libreros, Chao Wang, Lennart Elfgren, Ola Enoksson, Tommy Höjsten, Lars‐Olof Andersson, Gabriel Sas   +7 more
wiley   +1 more source

Exploring the potential of Textile Reinforced Concrete for corrosion‐insensitive retaining walls

Structural Concrete, EarlyView.
Abstract In a context where durability concerns, particularly the corrosion of steel reinforcement, remain a critical challenge for conventional reinforced concrete structures under severe exposure, Textile Reinforced Concrete (TRC) is emerging as a promising alternative.
J. Devènes, B. Regúlez Pérez, L. Todisco, M. Fernández Ruiz   +3 more
wiley   +1 more source

Rotation capacity of continuous reinforced concrete slab strips revisited

Structural Concrete, EarlyView.
Abstract Rotation capacity is a key characteristic of statically indeterminate reinforced concrete structures, as it (i) enables bending moment redistributions, whether intentionally introduced through optimized reinforcement layouts or arising from unforeseen self‐equilibrated stress states, and (ii) promotes large rotations at failure load, thereby ...
Nathalie Reckinger, Karel Thoma, Walter Kaufmann   +2 more
wiley   +1 more source