Results 131 to 140 of about 419 (262)

Hydrodynamic Study of Flow-Channel and Wall-Effect Characteristics in an Oscillating Hydrofoil Biomimetic Pumping Device. [PDF]

Biomimetics (Basel)
Hua E, Lin Y, Li S, Wu X.
europepmc   +1 more source

Labor Supply and Firm Size

International Economic Review, EarlyView.
ABSTRACTLarger firms feature (i) longer hours worked, (ii) higher wages, and (iii) smaller (larger) wage penalties for working long (short) hours. We reconcile these patterns in a general equilibrium model, which features the endogenous interaction of hours, wages, and firm size. In the model, workers willing to work longer hours sort into larger firms
Lin Shao, Faisal Sohail, Emircan Yurdagul   +2 more
wiley   +1 more source

Influence of speed and line spacing on aerodynamic forces in high speed train passing in tunnels. [PDF]

Sci Rep
Duan X, Mei Y, Hu X, Qi C.
europepmc   +1 more source

Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function

International Statistical Review, EarlyView.
Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler, Denis Belomestny, Simos George Meintanis, Emanuele Taufer   +3 more
wiley   +1 more source

CFD-Based optimization of dynamic pressure relief and associated simulation methodology for vehicle door closure. [PDF]

Sci Rep
Yang Z, Li L, Li L, Niu Z, Liu Z, Yang S, Liao S, Wen Y, Wang Z.   +8 more
europepmc   +1 more source

Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping. [PDF]

Biomimetics (Basel), 2023
Min Y, Zhao G, Pan D, Shao X.
europepmc   +1 more source

Bias Adjustment for Mean Squared Error Estimation in M‐Quantile Models for Small Area Estimation

International Statistical Review, EarlyView.
Summary M‐quantile (MQ) regression provides a robust and flexible alternative to mixed models for small area estimation. However, several theoretical aspects remain underexplored. In this paper, a parametric bootstrap method is proposed to approximate the distributions of area‐specific MQ coefficients and applied to adjust the bias in the mean squared ...
María Bugallo, Domingo Morales, Nicola Salvati, Francesco Schirripa Spagnolo   +3 more
wiley   +1 more source

Comparative Analysis of Hydrodynamic Performance for Flapping Hydrofoils Driven by Three Typical Transmission Mechanisms. [PDF]

Biomimetics (Basel)
Hua E, Li S, Wu X, Lin Y.
europepmc   +1 more source

Synthetic jets as a flow control device for performance enhancement of vertical axis hydrokinetic turbines: A 3D computational study. [PDF]

Heliyon, 2022
Botero N, Ratkovich N, Lain S, Lopez Mejia OD.   +3 more
europepmc   +1 more source

Goodness‐of‐Fit Tests for Positive Quadrant Dependence

International Statistical Review, EarlyView.
Summary When two random variables are positive quadrant dependent (PQD), they are more likely to assume small (or large) values simultaneously compared with when the random variables are independent. This dependence structure is of interest in many areas, including finance, actuarial science and engineering.
Chuan‐Fa Tang, Joshua M. Tebbs
wiley   +1 more source