Results 21 to 30 of about 156 (134)

Comparing classical and empirical end correction models using spatial pressure measurements in flue pipes

Acta Acustica
This study evaluates end-correction behavior in flue organ pipes by comparing two models: the classical low-frequency expression of Levine and Schwinger and the empirical, frequency-dependent refinement of Davies et al.
Coyle Whitney L., Schefter Lauren K., Cannaday Ashley E., Griffin Max, Rokni Eric   +4 more
doaj   +1 more source

Extended batch adsorber analogue model (e‐BAAM) for rapid evaluation of CO2 capture pressure swing adsorption cycles

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This work presents a simplified extended‐batch adsorber analogue model (e‐BAAM) to quantify key performance metrics such as purity, recovery, and energy trends for various pressure swing adsorption (PSA) process cycles for CO2$$ {\mathrm{CO}}_2 $$ capture.
Gwyneth Liske, Arvind Rajendran
wiley   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi, Jildimara de Jesus Santana, Alexander R. P. Harrison, Sara Andreoli, Ewa Marek, Stuart Scott, Mohammad Latifi, Gregory S. Patience   +7 more
wiley   +1 more source

On the Sustainability of Lithium‐Ion Battery‐Powered Electric Vehicles: Critical Review, Analysis, and Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review and analysis evaluate the benefits of LIB‐powered EVs on emission reduction of both CO2 and air pollutants. The raw materials of LIBs face low supply risks as the cathodes switch to low‐cobalt scenarios. Proper management of EV charging can mitigate its negative impact and even contribute to the stability and resilience of the power grid ...
Wanru Chen, Hangqi Yang, Nuoya Yue, Xiaoyu Yan, Tao Wu, Chuang Peng   +5 more
wiley   +1 more source

Wall losses in straight ducts with non-circular cross sections: a scaling rule of identical losses for wooden flue organ pipes

Acta Acustica
Viscothermal effects at the walls are the dominant sources of loss in the air columns of various types of wind instruments. The classical theory of viscous and thermal boundary layers gives an analytical result that allows for computing the wall losses ...
Rucz Péter, Fontestad Elena Esteve, Angster Judit, Miklós András   +3 more
doaj   +1 more source

Nonlinear interactions in organ flue pipes

The Journal of the Acoustical Society of America, 1974
The ideas introduced by Coltman and Benade are developed into a quantitative formalism for treating the oscillatory behavior of an air column in nonlinear interaction with an air jet, as in an organ flue pipe or a flute. Explicit solutions are given for the case when the pipe has only two resonances and the nonlinearity is described up to cubic terms ...
openaire   +2 more sources

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di, Guoliang Ma, Jiaxin Mu, Kailian Dong, Haibin Li, Manjing Wang, Xin Song, Haojin Li, Jianwei Xu, Yiying Zhao, Jingjing Zhao, Guojia Fang   +11 more
wiley   +1 more source

The effects of far‐UVC irradiation on the presence and concentration of ESKAPEE pathogens on hospital surfaces: Study protocol for a multi‐site, double‐blinded randomized controlled trial in La Paz, Bolivia

Photochemistry and Photobiology, EarlyView.
The protocol of a multi‐site, double‐blinded, clustered randomized controlled trial (cRCT) with a binary outcome of the presence of viable presumptive ESKAPEE pathogens on surfaces in and around hospital sinks is to be implemented in two Bolivian hospitals.
Lindsay B. Saber, Melani Rojas, Darcy M. Anderson, Deverick J. Anderson, Holger Claus, Ryan Cronk, Karl G. Linden, Megan E. J. Lott, Lewis J. Radonovich Jr., Bobby G. Warren, Richard D. Williamson, Richard L. Vincent, Sergio Gutiérrez‐Cortez, Carla Calderón Toledo, Joe Brown   +14 more
wiley   +1 more source

Carbon, Water, and Energy Flux Dynamics in Different Cropping Systems in the Great Lakes Region

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract This study examined carbon (C), water, and energy exchanges across different cropping systems in the Great Lakes region using eddy covariance (EC) fluxes from an agricultural flux tower site (CA‐TPA) in southern Ontario, Canada. The site was cultivated with corn in 2020 and 2021, sweet potato in 2022, and tobacco in 2023. The site was a strong
M. Altaf Arain, Nur Hussain, Liam Kreibich, Jason Brodeur, Zoran Nesic   +4 more
wiley   +1 more source

Synthesis and Evaluation of Ceramic‐Anchored Cu‐Ce‐MnOx Catalyst for Low Temperature Reduction of Diesel Engine NOx Emissions Using Liquefied Petroleum Gas or Adblue as Reductants

Energy Science &Engineering, Volume 14, Issue 7, Page 3149-3161, July 2026.
LPG converting harmful NO represented by the dark smoke to harmless N2 and H2O shown by the white smoke over Cu‐Ce‐MnOx catalyst. ABSTRACT Manganese oxide‐based catalyst doped with copper and cerium was synthesized through microwave irradiation and successfully anchored on a ceramic support.
Brian O. Obita, Simon Ngigi Mbugua, Clare I. Muhanji, Joseph O. Lalah   +3 more
wiley   +1 more source