Results 31 to 40 of about 507,176 (278)

Null Controllability of a Nonlinear Age Structured Model for a Two-Sex Population

Abstract and Applied Analysis, 2021
This paper is devoted to study the null controllability properties of a nonlinear age and two-sex population dynamics structured model without spatial structure. Here, the nonlinearity and the couplage are at the birth level.
Amidou Traoré, Okana S. Sougué, Yacouba Simporé, Oumar Traoré   +3 more
doaj   +1 more source

Structural Divergence Between the Moltbook AI‐Agent Network and Human Social Networks

Advanced Science, EarlyView.
Analysis of the Moltbook AI‐agent network reveals a striking combination of familiar global scaling and distinct internal organization. Attention is highly concentrated, reciprocity is limited, connected triads are suppressed, and communities are strongly modular.
Wenpin Hou, Zhicheng Ji
wiley   +1 more source

Observational-interventional Bell inequalities

Physical Review A
Generalizations of Bell's theorem, particularly within quantum networks, are now being analyzed through the causal inference lens. However, the exploration of interventions, a central concept in causality theory, remains significantly unexplored.
Davide Poderini, Ranieri Nery, George Moreno, Santiago Zamora, Pedro Lauand, Rafael Chaves   +5 more
openaire   +2 more sources

H2 model order reduction of bilinear systems via linear matrix inequality approach

IET Control Theory & Applications, 2023
This paper proposes an H2‐optimal model order reduction (MOR) method for bilinear systems based on the linear matrix inequality (LMI) approach. In this method, to reduce the computational complexity, at first, a reduced middle‐order approximation of the ...
Hasan Nasiri Soloklo, Nooshin Bigdeli
doaj   +1 more source

Nearly Linear-Phase 2-D Recursive Digital Filters Design Using Balanced Realization Model Reduction

Signals, 2023
This paper presents a new method for the design of separable-denominator 2-D IIR filters with nearly linear phase in the passband. The design method is based on a balanced realization model reduction technique.
Abdussalam Omar, Dale Shpak, Panajotis Agathoklis   +2 more
doaj   +1 more source

Observable set, observability, interpolation inequality and spectral inequality for the heat equation in $\mathbb{R}^n$

, 2017
This paper studies connections among observable sets, the observability inequality, the Hölder-type interpolation inequality and the spectral inequality for the heat equation in $\mathbb R^n$. We present a characteristic of observable sets for the heat equation. In more detail, we show that a measurable set in $\mathbb{R}^n$ satisfies the observability
Wang, Gengsheng, Wang, Ming, Zhang, Can, Zhang, Yubiao   +3 more
openaire   +2 more sources

Data‐Driven and Physics‐Informed Modeling Perspectives for Soft Manipulators: From SINDy to Hybrid Intelligence

Advanced Science, EarlyView.
This Perspective charts the modeling landscape for soft manipulators, spanning sparse system identification, neural dynamics, physics‐informed models and hybrid intelligence. We examine how physics, data, sensing, adaptation and control can assume complementary roles within this landscape, and provide a framework for selecting modeling approaches ...
Wenbo Hui, Yunyi Wang, Teng Zhang, Yang Chen, Min Pan   +4 more
wiley   +1 more source

Li-Ion Battery Anode State of Charge Estimation and Degradation Monitoring Using Battery Casing via Unknown Input Observer

Energies, 2022
The anode state of charge (SOC) and degradation information pertaining to lithium-ion batteries (LIBs) is crucial for understanding battery degradation over time. This information about each cell in a battery pack can help prolong the battery pack’s life
Ashikur Rahman, Xianke Lin, Chongming Wang   +2 more
doaj   +1 more source

Delaying the Inevitable? U.S. Screwworm Closures and Feeder Cattle Market Dynamics

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Biosecurity trade restrictions are commonly framed as preventive measures, yet in many settings they function primarily as policies of delay: they impose immediate market costs while only postponing the arrival of biological risks. This paper evaluates that intertemporal tradeoff using the 2024–2025 US suspension of live cattle imports from ...
Shelby Sumner, Savannah Jones, Tania Islam, K. Aleks Schaefer   +3 more
wiley   +1 more source

Inequality and inequity in healthcare utilization in urban Nepal: a cross-sectional observational study [PDF]

Health Policy and Planning, 2016
Inequality in access to quality healthcare is a major health policy challenge in many low- and middle-income countries. This study aimed to identify the major sources of inequity in healthcare utilization using a population-based household survey from urban Nepal.
Saito, Eiko, Gilmour, Stuart, Yoneoka, Daisuke, Gautam, Ghan Shyam, Rahman, Md Mizanur, Shrestha, Pradeep Krishna, Shibuya, Kenji   +6 more
openaire   +4 more sources