Results 111 to 120 of about 466 (245)

Immersed Boundary Projection Method for Boundaries With Slip Velocities

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
A formulation of the immersed boundary method for incompressible flow over arbitrarily‐shaped bodies with surface slip described by the Navier boundary condition is presented. The wall slip velocity and the boundary force are determined implicitly through a projection to satisfy both the boundary condition and the divergence‐free condition of the ...
Takehiro Fujii, Takeshi Omori
wiley   +1 more source

Static analysis of functionally graded porous thin-walled I-beams based on higher order shear deformation beam theory

open access: yesVietnam Journal of Mechanics
This paper presents a static analysis of functionally graded porous (FGP) thin-walled beams based on higher-order shear deformation beam theory. The material properties are assumed to vary through the thickness of the thin-wall.
Thien-Nhan Nguyen   +2 more
doaj   +1 more source

Researcher–Entrepreneur Relationship and Performance of Innovative Startups

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT Many innovative startups are joint ventures between researchers and entrepreneurs, who collaborate in R&D and product commercialization. Government policies such as grants, subsidies, and patent licensing fees act as Pigouvian subsidies, incentivizing R&D by bridging the gap between the social and private returns of innovation.
Yangguang Huang, Helen Hui
wiley   +1 more source

Risk Forecasting in Shipping Exchange‐Traded‐Fund (ETF) Markets

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This article examines the risk properties of freight‐derivative‐based exchange‐traded funds (ETFs), focusing on the Breakwave Dry Bulk Shipping ETF (BDRY), and evaluates the accuracy of Value‐at‐Risk (VaR) and Expected Shortfall (ES) forecasts across a range of econometric models.
Christos Katris   +2 more
wiley   +1 more source

Ulam-Hyers stability of tuberculosis and COVID-19 co-infection model under Atangana-Baleanu fractal-fractional operator. [PDF]

open access: yesSci Rep, 2023
Selvam A   +7 more
europepmc   +1 more source

The Effect of the Interaction Between Price and Time Preference on Cigarette Consumption

open access: yesInternational Studies of Economics, EarlyView.
ABSTRACT The primary focus of this essay is to obtain new estimates of the price sensitivity of cigarette consumption and related outcomes using the 1979 cohort of the National Longitudinal Survey of Youth (NLSY79). This work expands on the existing literature on the topic by taking into account measures of time preference in the NLSY79 to examine ...
Yan Song
wiley   +1 more source

Theoretical Analysis of Reactions in the Knee Joint Caused by Impact

open access: yesEngineering Transactions, 1978
A theoretical model is described, which makes it possible to estimate the impulsive reactions in the knee joint, when an impact is given to the lower leg, e.g. by kicking a ball.
L. Lindbeck
doaj  

Labor Market Institutions, Fiscal Multipliers, and Macroeconomic Volatility

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT How do labor market institutions shape the transmission of government spending shocks and macroeconomic volatility? We develop a theoretical model in which labor market institutions affect fiscal transmission through their effect on wage rigidity, job separation, and matching frictions.
Maximilian Boeck   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy