Results 51 to 60 of about 5,686,311 (231)

Gas holdup in a 32 cm bubble column [PDF]

, 2005
Air-water-fiber flows are found in the pulp and paper industry in a variety of unit operations such as flotation deinking of recycled paper and fiber bleaching.
Hol, Philip
core  

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

Advanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar, Haider Abbas, Muhammad Rabeel, Honggyun Kim, Ghulam Dastgeer, Muhammad Nasim, Furqan Zahoor, Yawar Abbas, Waqas Ahmad, Deok‐kee Kim   +9 more
wiley   +1 more source

GAS HOLDUP AND AXIAL LIQUID DISPERSION IN THREE PHASE BUBBLE COLUMNS

Journal of Engineering and Sustainable Development, 2015
Axial liquid dispersion coefficient was studied in air-tap water systems (bubble columns) and air-tap water-PVC solid particles systems for different column diameters, 10, 15, and 30 cm, Each column had a gas distributor plate with perforated holes of
Burhan Sadeq Abdulrazzaq
doaj  

Comprehensive Analysis of the Overall Gas Holdup Profiles in Various Air-Water Bubble Columns

Journal of Chemical Engineering of Japan
Bubble columns (BCs) are widely used gas-liquid contactors in the chemical industry. Their hydrodynamic and mass transfer performance depends on the prevailing flow regime (FR) and the gas sparger (GS) type (particularly in the homogeneous FR).
Stoyan Nedeltchev, Adam Mühlbauer, Andrea Ferrario, Nicolo Varallo, Sara Marchini, Dominic Pjontek, Mark W. Hlawitschka, Giorgio Besagni   +7 more
doaj   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

Advanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez, Ruth Tarpey, Benjamin Brennan, Bryan D. Boyle, Amir M. Alsharabasy, Abhik Mallick, Gabriella Bellavia, Abhay Pandit, Garry P. Duffy, Ruth E. Levey   +9 more
wiley   +1 more source

EFFECT OF PHYSICAL PROPERTIES ON HEAT TRANSFER AND FLOW REGIMES IN BUBBLE COLUMNS

Al-Qadisiyah Journal for Engineering Science, 2015
This work discusses the effect of superficial gas velocity and liquid properties (viscosity μ, surface tension σ, thermal conductivity k , density ρ , specific heat Cp ) on the heat transfer coefficient and gas holdup investigated in a bubble column ...
Balasim A. Abid, Nada Mahdi Farhan, Shurooq Talib Al-Hemeri   +2 more
doaj  

Predicting slug liquid holdup in a two-phase gas–liquid vertical flow

Journal of Engineering and Applied Science
The accuracy of existing liquid holdup models is limited to the range of data used in their development. In this study, a dynamic model for predicting liquid holdup in a two-phase gas liquid vertical flow is developed using artificial neural networks and
Nicholas N. Omeh, Ugochukwu I. Duru, Angela N. Nwachukwu, Boniface U. Okonkwo, Chibuzo C. Nwanwe, Princewill M. Ikpeka   +5 more
doaj   +1 more source

Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams

Advanced Functional Materials, EarlyView.
A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek, Priscilla de Souza Lima, Olga Gotkiewicz, Ondrej Kopilec, Radka Hobzova, Lívia Kanizsová, Mikelis Kirpluks, Ondrej Sedlacek, Hynek Beneš   +8 more
wiley   +1 more source

Holdup, Search and Inefficiency [PDF]

This paper investigates the holdup problem in the dynamic search market where buyers and sellers search for their trading partners and specific investments are made after match but before trade.
Shingo Ishiguro
core  

Phases distribution in slurry bubble columns: Insights from single-source computed tomography and gas holdup measurements

, 2023
In this study, a cylindrical stainless-steel column with dimensions of 250 cm in height and 16.2 cm in diameter was employed to investigate how fluid properties influence phase distribution within slurry bubble columns.
Mahmoud M. Taha, Al-Dahhan, Muthanna H., Muthanna H. Al-Dahhan, Shaikh, Ashfaq, Ashfaq Shaikh, Taha, Mahmoud M.   +5 more
core   +1 more source