Results 41 to 50 of about 15,019,912 (156)

Fate of a Naive T Cell: A Stochastic Journey

Frontiers in Immunology, 2019
The homeostasis of T cell populations depends on migration, division and death of individual cells (1). T cells migrate between spatial compartments (spleen, lymph nodes, lung, liver, etc.), where they may divide or differentiate, and eventually die (2).
Luis de la Higuera, Martín López-García, Mario Castro, Mario Castro, Niloufar Abourashchi, Grant Lythe, Carmen Molina-París   +6 more
doaj   +1 more source

Models, systems, networks in economics, engineering, nature and society

Модели, системы, сети в экономике, технике, природе и обществе
Background. Process Мining is a young, dynamically developing field of data science. This data-driven approach to process analytics has already proven its effectiveness and is increasingly gaining popularity in large companies.
M.I. Krevskiy, A.S. Bozhday
doaj   +1 more source

Reliability Analysis of Fatigue Failure of Cast Components for Wind Turbines

Energies, 2015
Fatigue failure is one of the main failure modes for wind turbine drivetrain components made of cast iron. The wind turbine drivetrain consists of a variety of heavily loaded components, like the main shaft, the main bearings, the gearbox and the ...
Hesam Mirzaei Rafsanjani, John Dalsgaard Sørensen   +1 more
doaj   +1 more source

Diffusion Signed LMS Algorithms and Their Performance Analyses for Cyclostationary White Gaussian Inputs

IEEE Access, 2017
As one of the signed variants of the diffusion least mean square (DLMS) algorithm over networks, the diffusion sign error algorithm has been presented in previous reference. In this paper, we propose two novel signed variants of the DLMS algorithm, i.e.,
Wenyuan Wang, Haiquan Zhao
doaj   +1 more source

A Market Model for Stochastic Implied Volatility [PDF]

In this paper a stochastic volatility model is presented that directly prescribes the stochastic development of the implied Black-Scholes volatilities of a set of given standard options.
Schönbucher, Philpp J.
core  

bbuffett/Stochastic: v1.0.0

, 2021
A one-dimensional stochastic model for the axial dipole moment of the Earth's magnetic ...
Bruce Buffett
core   +1 more source

A New Angle-Calibration Method for Precise Ultra-Short Baseline Underwater Positioning

Remote Sensing
Ultra-short baseline (USBL) underwater positioning systems are widely used in marine scientific research and ocean engineering. Angle misalignment is a main error that reduces the accuracy of USBL underwater positioning.
Zhen Sun, Zhenjie Wang, Zhixi Nie, Chun Jia, Rui Shan   +4 more
doaj   +1 more source

The Impact of Systemic Risk on the Diversification Benefits of a Risk Portfolio

Risks, 2014
Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit it. One of them is the existence of systemic risk that affects all of the policies at the same time. We introduce here a probabilistic
Marc Busse, Michel Dacorogna, Marie Kratz   +2 more
doaj   +1 more source

ECONOMIC AND FINANCIAL PERFORMANCE OF REPRESENTATIVE SMALL SCALE DAIRY PRODUCTION UNITS TO 2027

Tropical and Subtropical Agroecosystems
Background: Small-scale dairy systems are vital in rural communities and strategic for livelihoods an economic development. Objective: To estimate the economic and financial viability of small-scale dairy Representative Production Units (RPU) in the high
Vianey González-Hernández, Nicolas Callejas-Juárez, Nathaniel Alec Rogers-Montoya, Carlos Galdino Martínez-García, Jesús Armando Salinas-Martínez, Francisco Ernesto Martínez-Castañeda   +5 more
doaj   +1 more source

Assessment of Different Stochastic Models for Inter-System Bias between GPS and BDS

Remote Sensing, 2019
Inter-system bias (ISB) will affect accuracy and processing time in integrated precise point positioning (PPP), and ISB stochastic models will largely determine the quality of ISB estimation.
Nan Jiang, Tianhe Xu, Yan Xu, Guochang Xu, Harald Schuh   +4 more
doaj   +1 more source