Results 41 to 50 of about 18,844,670 (344)

Finite-Time Controllability and Set Controllability of Impulsive Probabilistic Boolean Control Networks

open access: yesIEEE Access, 2020
This paper addresses the finite-time controllability and set controllability of impulsive probabilistic Boolean control networks (IPBCNs). Firstly, using the algebraic state space representation (ASSR) method, the transition probability matrix of IPBCNs ...
Jing Wang, Yansheng Liu, Haitao Li
doaj   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Required Moment Sets: Enhanced Controllability Analysis for Nonlinear Aircraft Models

open access: yesApplied Sciences, 2021
Attainable moment sets (AMS) are a powerful method to assess aircraft controllability. However, as attainable moment sets only take into account the achievable moment set of the control effectors, they do not assess the required moment set to fulfill the
Max Söpper   +3 more
doaj   +1 more source

An Adaptive Management Model for Brown Bears in Hokkaido: Based on Total Population and the Number of Nuisance Bears

open access: yesPopulation Ecology, EarlyView.
Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda   +5 more
wiley   +1 more source

Controllability of Linear Discrete-Time Systems with Both Delayed States and Delayed Inputs

open access: yesAbstract and Applied Analysis, 2013
The controllability issues for discrete-time linear systems with delay in state and control are addressed. By introducing a new concept, the controllability realization index (CRI), the characteristic of controllability is revealed.
Hong Shi, Guangming Xie, Wenguang Luo
doaj   +1 more source

Physical controllability of complex networks

open access: yesScientific Reports, 2017
A challenging problem in network science is to control complex networks. In existing frameworks of structural or exact controllability, the ability to steer a complex network toward any desired state is measured by the minimum number of required driver ...
Lezhi Wang   +3 more
semanticscholar   +1 more source

Controlling a population

open access: yesLogical Methods in Computer Science, 2019
We introduce a new setting where a population of agents, each modelled by a finite-state system, are controlled uniformly: the controller applies the same action to every agent. The framework is largely inspired by the control of a biological system, namely a population of yeasts, where the controller may only change the environment common to all cells.
Bertrand, Nathalie   +4 more
openaire   +9 more sources

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Bisimulations for delayed switched Boolean control networks and its application in controllability

open access: yesIET Control Theory & Applications, 2023
This paper investigates bisimulation relations of delayed switched Boolean control networks (DSBCNs), using the semi‐tensor product (STP) approach. Firstly, the notion of bisimulation in DSBCNs is formalized. Subsequently, based on the skeleton matrix of
Weiyong Yu   +3 more
doaj   +1 more source

Control your controls and conclusions [PDF]

open access: yesArchives of Disease in Childhood, 2001
Editor,—In a retrospective study, Kerr and coworkers investigated formalin fixed, paraffin embedded tissues (stomach, trachea, and lung) of 32 infants who had died of SIDS, and eight control cases, with nested polymerase chain reaction (PCR) and ELISA of the amplicons. A child was considered as infected with H pylori if the optical density of the ELISA
Sibylle Koletzko   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy