Results 81 to 90 of about 6,144,611 (296)

Mass observation / by Mass Observation.

open access: yes, 1945
Electronic reproduction. Canberra, A.C.T.
Mass-Observation.
core  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Evaporation Heat Transfer of R32 inside Horizontal Tubes

open access: yesZhileng xuebao, 2017
This paper studies the evaporation heat transfer of R32 inside two different diameters of horizontal tubes under saturation temperatures of 0 ℃, 5 ℃, and 10 ℃.
Li Qingpu   +5 more
doaj  

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

open access: yesAdvanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao   +6 more
wiley   +1 more source

Determination of Volumetric Mass Transfer Coefficient in Fixed Bed Adsorption

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2007
This work was conducted to determine the volumetric mass transfer coefficient (Ky.a) infixed bed adsorption using hexane-benzene mixture by adsorption onto a fixed bed of white silica gel. Benzene concentration was measured by gas chromatography.
Adil A. Al-Hemiri, Farah Y. Al-Kaisy
doaj  

Mass or heat transfer inside a spherical gas bubble at low to moderate Reynolds number [PDF]

open access: yes, 2013
Mass (or heat) transfer inside a spherical gas bubble rising through a stationary liquid is investigated by direct numerical simulation. Simulations were carried out for bubble Reynolds number ranging from 0.1 to 100 and for Péclet numbers ranging from 1
Colombet, Damien   +3 more
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič   +7 more
wiley   +1 more source

IMAGE PROCESSING TO DETERMINE MASS TRANSFER COEFFICIENT FOR GAS BUBBLE

open access: yesمجلة النهرين للعلوم الهندسية, 2008
This paper suggests a simple system to study the hydrodynamics in a bubble column reactor and measuring gas-liquid specific interfacial area a, individual mass transfer coefficient kL, gas holdupG, flow regime, bubble size distribution, coalescence of
Naseer A. Al-Habobia, Aalaa A. Turkib
doaj  

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

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