Results 61 to 70 of about 3,332 (259)
The principle and applications of Bernoulli equation
Journal of Physics: Conference Series, 2017 Bernoulli equation is one of the most important theories of fluid mechanics, it involves a lot of knowledge of fluid mechanics, and is used widely in our life. This paper comprehensives the research present situation of Bernoulli equation at home and abroad, introduces the principle of Bernoulli equation and some applications in our life, and provides ...
Ruqiong Qin, Chunyi Duan
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Rank‐based estimation of propensity score weights via subclassification
Canadian Journal of Statistics, EarlyView.Abstract Propensity score (PS) weighting estimators are widely used for causal effect estimation and enjoy desirable theoretical properties, such as consistency and potential efficiency under correct model specification. However, their performance can degrade in practice due to sensitivity to PS model misspecification.
Linbo Wang +3 more
wiley +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Using the environmental quality cost management model, this study examines how fraud risk management (FRM) influences corporate sustainability performance (CSP) and how ownership structures moderate it. The study uses artificial neural networks (ANN) and logistic regression models to test two hypotheses. H1 demonstrates that the prevention and
Israel Akinbode Owolabi +3 more
wiley +1 more source
Fractional Modelling of Hereditary Vibrations in Coupled Circular Plate System with Creep Layers
Fractal and FractionalThis paper presents an analytical model for the hereditary vibrations of a coupled circular plate system interconnected by viscoelastic creep layers. The system is represented as a discrete-continuous chain of thin, isotropic plates with time-dependent ...
Julijana Simonović
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He +9 more
wiley +1 more source
One-Dimensional Modeling of the Pressure Loss in Concrete Pumping and Experimental Verification
Applied SciencesAn accurate formula for calculating the pressure loss in concrete pumping plays a significant guiding role in the design and service process of pump trucks.
Xuan Zhao +3 more
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Energy Science &Engineering, EarlyView.This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak +2 more
wiley +1 more source
Internal-external flow integration for a thin ejector-flapped wing section [PDF]
, 1979 Thin airfoil theories of an ejector flapped wing section are reviewed. The global matching of the external airfoil flow with the ejector internal flow and the overall ejector flapped wing section aerodynamic performance are examined.
Woolard, H. W.
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UK Forecasts of Annual GDP: Their Accuracy and the Information Categories Underlying Their Revisions
Journal of Forecasting, EarlyView.ABSTRACT Policy makers are concerned with the accuracy of GDP forecasts and want to understand the reasons for the revision of forecasts. We study these issues by examining forecasts of annual UK GDP growth by a panel of agents, published monthly by HM Treasury. We focus on two main issues: the developing accuracy of the group‐mean forecast as horizons
Nigel Meade, Ciaran Driver
wiley +1 more source
Lecture notes in Medical and Biological Physics [PDF]
, 2015 Matter most commonly exists as a solid, liquid, or gas; these states are known as the three common phases of matter. Solids have a de nite shape and a speci c volume, liquids have a de nite volume but their shape changes depending on the container in
Yunda, Andrii Mykolaiovych +2 more
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