Results 91 to 100 of about 10,566 (258)

Industry Portfolio Volatility Connections and Industry Portfolio Returns

International Journal of Finance &Economics, EarlyView.
ABSTRACT This paper tracks dynamic connections that form among daily US industry portfolio return volatilities using a Bayesian time‐varying parameter VAR model. Market participants often focus on sectors to filter vast amounts of information, and this focus results in cross‐industry return predictability. We characterise connections that form over the
Michael Ellington, Michalis Stamatogiannis, Yawen Zheng   +2 more
wiley   +1 more source

Technology Development Outsourcing: When to Join Forces With a Rival?

Journal of Operations Management, EarlyView.
ABSTRACT Knowing the challenges of collaborating with a competitor in developing new technologies, firms sometimes still choose a competitor instead of a noncompeting technology provider. To explore why, this study adopts an inter‐organizational trust view to explain the formation of a technology development outsourcing relationship.
Tingting Yan, Hubert Pun, Dina Ribbink
wiley   +1 more source

DNA barcoding for identification of species involved in wildlife strikes at Brazilian airports

The Journal of Wildlife Management, EarlyView.
A collaborative network of 42 Brazilian airports applied DNA barcoding to identify 80 species involved in wildlife strikes. Among them, 32 species (17 birds and 15 bats) were not currently available in Brazil's wildlife strike reporting database, underscoring the value of molecular tools for strengthening wildlife strike monitoring. Abstract This study
Andre Akira Gonzaga Yoshikawa, Bernardo Perin Cima, Iara Carolini Pinheiro, Isabelle Louise Pimenta‐Blight, Fernando Seabra, Carmen Elena Barragán‐Ruiz, Dalmo Almeida de Azevedo, Mariana Pires de Campos Telles, Raquel Nascimento Rocha, Karla Andréa Rodrigues dos Santos, Wellington Longuini Repette, José Pedro Francisconi Junior   +11 more
wiley   +1 more source

Research on a Simplified Estimation Method for Wheel Rolling Resistance on Unpaved Runways

Applied Sciences
Aiming at the practical difficulties (e.g., high cost of full-scale tests) in testing the rolling resistance of aircraft wheels on unpaved runways, this study establishes a theoretical calculation formula for wheel rolling resistance based on the Bekker ...
Pengshuo Guo, Xiaolei Chong, Zihan Wang
doaj   +1 more source

Modal Parameters Evaluation in a Full-Scale Aircraft Demonstrator under Different Environmental Conditions Using HS 3D-DIC. [PDF]

Materials (Basel), 2018
Molina-Viedma ÁJ, López-Alba E, Felipe-Sesé L, Díaz FA, Rodríguez-Ahlquist J, Iglesias-Vallejo M.   +5 more
europepmc   +1 more source

Evaluating Erosional Stability of Reconstructed Mine Landscapes Using Landform Evolution Models: Parameterisation and Decadal‐Scale Erosion Assessment

Land Degradation &Development, EarlyView.
ABSTRACT Ensuring the long‐term erosional stability of post‐mining landforms remains a major challenge in open‐pit mining. Reconstructed landscapes must support the agreed post‐mining land use, such as cattle grazing in the Hunter region of southeastern Australia, requiring stable pasture and minimal soil loss.
I. P. Senanayake, G. R. Hancock
wiley   +1 more source

A modular transfer learning-based method for predicting high-load support reactions in full-scale static tests

Xibei Gongye Daxue Xuebao
To address the problem of neglecting load uncertainties and structural deformation in conventional support reaction calculations for full-scale aircraft static tests, this paper proposes a novel approach based on modular transfer learning for accurately ...
XUE Xiaofeng, SONG Le, HE Qian, FENG Yunwen, CUI Yuhang   +4 more
doaj   +1 more source

Are Academic Executives Greener? Evidence From China

Managerial and Decision Economics, EarlyView.
ABSTRACT This paper investigates the impact of executives with academic backgrounds (“academic executives”) on corporate green patents. We find that both the presence of academic executives and the proportion of academic executives have a significantly positive impact on firms' green patents, and this effect is positively associated with the firm's ...
Kai Xing, Xiong Li, Ping Liu, Hanxiong Zhang, Yuhan Xiao   +4 more
wiley   +1 more source

Uncertainty, Sensitivity, and Efficiency Analysis of a Hybrid Piezoelectric–Electromagnetic Energy Harvester

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley   +1 more source

A Geometrically Regularized Gradient‐Damage Model With Orthogonality‐Based Energy Split for Dynamic Anisotropic Compression‐Shear Fracture

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study proposes a novel geometrically regularized gradient‐damage model for simulating dynamic mixed‐mode fracture in orthotropic materials with tension–compression asymmetry. In this model, a thermodynamic framework is formulated by incorporating damage dissipation into internal energy evolution, from which the constitutive relation and ...
Hui Li, Shanyong Wang
wiley   +1 more source