Results 231 to 240 of about 1,475,338 (284)

The 3d Mixed BF Lagrangian 1-Form: A Variational Formulation of Hitchin's Integrable System. [PDF]

Commun Math Phys
Caudrelier V, Harland D, Singh AA, Vicedo B.   +3 more
europepmc   +1 more source

Dynamic Performance Enhancement of a High‐Agility Hypersonic Mechanical System via a Learning‐Augmented Robust Control Architecture

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori, Seyed Hossein Sadati   +1 more
wiley   +1 more source

Semantic Foundations of Reductive Reasoning. [PDF]

Topoi (Dordr)
Gheorghiu AV, Pym DJ.
europepmc   +1 more source

Tactical and Strategic Risks From Supply Disruptions in Competing Supply Chains

Naval Research Logistics (NRL), EarlyView.
ABSTRACT Supply chain disruptions can lead to both tactical (i.e., loss of short‐term sales during a disruption) and strategic (i.e., loss of long‐term market share) consequences. We model the impact of a supply disruption on competing supply chains in which two firms compete for a limited backup supply.
Akhil Singla, Wallace J. Hopp, Seyed M. R. Iravani, Zigeng Liu   +3 more
wiley   +1 more source

Nonlinear Monte Carlo Methods with Polynomial Runtime for Bellman Equations of Discrete Time High-Dimensional Stochastic Optimal Control Problems. [PDF]

Appl Math Optim
Beck C, Jentzen A, Kleinberg K, Kruse T.
europepmc   +1 more source

Burden of ischemic stroke in China from 1990 to 2050: A systematic review and analysis of Global Burden of Disease Study 2021

Neuroprotection, EarlyView.
Based on GBD 2021, the study analyzed the temporal trends of ischemic stroke (IS) burden in China from 1990 to 2021 and forecasted incidence and mortality through 2050. The absolute burden of IS in China will continue to rise by 2050, driven mainly by population aging, with faster age‐standardized incidence rate growth in females than males.
Yijun Zhang, Jinqiao Zhu, Xue Xia, Meng Gao, Yunyi Hao, Anxin Wang   +5 more
wiley   +1 more source

Beyond quantum linear optics with adaptive boson sampling. [PDF]

Nat Photonics
Rodari G, Francalanci T, Caruccio E, Hoch F, Milani G, Carvacho G, Giordani T, Spagnolo N, Albiero R, Di Giano N, Corrielli G, Crespi A, Ceccarelli F, Bossi M, Rajan A, Osellame R, Chabaud U, Sciarrino F.   +17 more
europepmc   +1 more source

Nonprofit Governance and Financial Stability: A Study of Government‐Funded Social Services

Nonprofit Management and Leadership, EarlyView.
ABSTRACT Nonprofit social service providers are essential in delivering vital services, often with public funding. This study adopts a contingency perspective to explore the relationship between organizational governance and financial stability in publicly funded nonprofit organizations. We use a combination of comparative multilevel analysis (CMA) and
Florentine Maier, Michael Meyer, Josef Baumüller, Christian Grünhaus, Franka Walde   +4 more
wiley   +1 more source

Matrix Quantum Mechanics and Entanglement Entropy: A Review. [PDF]

Entropy (Basel)
Fliss JR, Frenkel A.
europepmc   +1 more source

Coverage‐based rarefaction fails to quantify relative species richness

Oikos, EarlyView.
Coverage‐based rarefaction (CBR) is a high‐profile tool for assessing biodiversity that provides relative species richness estimates by leveraging the Good‐Turing index u to interpolate. In contrast to alternatives such as the Shannon and Simpson indices, CBR's main appeal is providing values in units of species. CBR is tested against a series of other
John Alroy
wiley   +1 more source