Results 121 to 130 of about 1,335 (292)

Effect of Tunnel Ventilation on Hydrogen Dispersion From Leaks in Hydrogen Fuel Cell Trucks

open access: yesEnergy Science &Engineering, EarlyView.
This study investigates hydrogen leakage scenarios involving hydrogen fuel cell trucks within tunnels. Using computational fluid dynamics methods, it explores the distribution characteristics of hydrogen concentrations and the efficiency of ventilation under different forced ventilation conditions. ABSTRACT The widespread adoption of hydrogen fuel cell
Limin Geng   +6 more
wiley   +1 more source

EFFECT OF DIAMETER ON VOLUME MEASUREMENTS OF Pinus caribaea (MORELET).

open access: yes, 2013
is the most important parameter in commercial forestry especially at themature stage. Among those methods, the most common way is to useSmalian's, Huber's and Newton's formulae. In order to use these threeformulae the stem should be divided into sections
Hewage, S., Subasinghe, C. U. P.
core   +1 more source

Decentralized Federated Learning for Wind Turbine Bearing Prognostics Under Data Scarcity and Statistical Heterogeneity

open access: yesEnergy Science &Engineering, EarlyView.
This paper proposes a decentralized peer‐to‐peer federated learning framework for wind turbine bearing remaining useful life prediction, introducing a virtual client paradigm in which statistical health indicators serve as independent feature‐level clients—enabling privacy‐preserving collaborative prognostics from a single physical asset under ...
Jihene Sidhom   +2 more
wiley   +1 more source

A new law of gravitational force beyond the limits of applicability of Newton's law of gravity.

open access: yes
The law of cosmological gravitational force is proposed in addition to Newton's law of gravitation. The law operates beyond the limit of applicability of Newton's law of gravitation and is applicable to the gravitational interaction of the universe.
Mykola Kosinov
core  

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

open access: yesEnergy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen   +6 more
wiley   +1 more source

PARADOXES OF GRAVITY: Newton's Law Does Not Work at Large Distances, but... it's too early to throw it in the scrapheap

open access: yes
The dominant force in the Universe is gravity. For over 300 years, the gravitational force was represented by a single simple and mathematically perfect formula - Newton's law of gravity FN = GmM/r^2.
Mykola Kosinov
core  

Flow Characteristics and Response Surface Methodology‐Based Pressure‐Loss Prediction Models for the Reverse Circulation Converter in Double‐Wall Drill Pipes

open access: yesEnergy Science &Engineering, EarlyView.
Flow characteristics and pressure loss mechanisms of a reverse circulation converter in dual‐wall drill pipes are systematically investigated using CFD and response surface methodology. The results reveal the dominant role of inertial dissipation and provide a predictive framework for optimizing converter design and operational parameters. ABSTRACT The
Mingming Geng   +8 more
wiley   +1 more source

Some congruences and identities for Gauss polynomials: a noncommutative technique

open access: yes, 1991
Gauss polynomials are used to obtain a generalization (involving cyclotomic polynomials) of the congruence of Lucas. We give two proofs of this statement. The second one contains a noncommutative q-analogue of Newton's formula.
Radoux, Christian
core   +1 more source

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