Results 11 to 20 of about 23,687 (258)
Rejuvenating functional responses with renewal theory. [PDF]
J R Soc Interface, 2018 Functional responses are widely used to describe interactions and resource exchange between individuals in ecology. The form given to functional responses dramatically affects the dynamics and stability of populations and communities. Despite their importance, functional responses are generally considered with a phenomenological approach, without clear
Billiard S, Bansaye V, Chazottes JR.
europepmc +7 more sources
Research on assessment methods and practical analysis of livable communities in Chongqing from an urban renewal perspective [PDF]
Scientific ReportsWith the rapid construction and development of cities, aging communities have emerged with problems such as long-standing buildings, poor living environments, uneven distribution of public service facilities, aging infrastructure, and inconvenient ...
Chenxi Ma +3 more
doaj +2 more sources
Patterns of Detachment: Spatial Transformations of the Phosphate Industry in el-Quseir, Egypt
Urban Planning, 2023 The establishment of phosphate mines and processing plants by Italian entrepreneurs in el-Quseir in 1912 revitalized a town that had faced a steady decline after the opening of the Suez Canal and re-linked it to the world economy.
Mirhan Damir, Martin Meyer, Hellen Aziz
doaj +1 more source
On geometric recurrence for time-inhomogeneous autoregression
Modern Stochastics: Theory and Applications, 2023 The time-inhomogeneous autoregressive model AR(1) is studied, which is the process of the form ${X_{n+1}}={\alpha _{n}}{X_{n}}+{\varepsilon _{n}}$, where ${\alpha _{n}}$ are constants, and ${\varepsilon _{n}}$ are independent random variables. Conditions
Vitaliy Golomoziy
doaj +1 more source
Frontiers in Physiology, 2022 Background and Objective: Renewal theory is a statistical approach to model the formation and destruction of phase singularities (PS), which occur at the pivots of spiral waves.
Evan V. Jenkins +18 more
doaj +1 more source
A Note on the Transience of Critical Branching Random Walks on the Line [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 Gantert and Müller (2006) proved that a critical branching random walk (BRW) on the integer lattice is transient by analyzing this problem within the more general framework of branching Markov chains and making use of Lyapunov functions. The main purpose
Gerold Alsmeyer, Matthias Meiners
doaj +1 more source
An Extension of Renewal Theory [PDF]
Proceedings of the American Mathematical Society, 1952 Renewal theory can be and has been viewed in several different ways. One way is to reduce the problems to those concerning the addition of independent, non-negative random variables having a common distribution. Accordingly we introduce the random variables X1, X2, * * *, independent, non-negative, and all possessing the same distribution function F(x)
Chung, Kai Lai, Pollard, Harry
openaire +2 more sources
Really Ageing Systems Undergoing a Discrete Maintenance Optimization
Mathematics, 2022 In general, a complex system is composed of different components that are usually subject to a maintenance policy. We take into account systems containing components that are under both preventive and corrective maintenance.
Radim Briš, Pavel Jahoda
doaj +1 more source
Weighted Mean Inactivity Time Function with Applications
Mathematics, 2022 We consider an extension of the mean inactivity time based on a non-negative weight function. We show various properties of the new notion, and relate it to various functions of interest in reliability theory and information measures, such as the dynamic
Antonio Di Crescenzo, Abdolsaeed Toomaj
doaj +1 more source
Mathematics, 2022 The IEEE 802.11ah standard, marketed as Wi-Fi Halow, introduces a new channel access mechanism called the Restricted Access Window (RAW), aiming to provide connectivity for the Internet of Things (IoT) applications over broad areas.
Hamid Taramit +4 more
doaj +1 more source