Results 81 to 90 of about 2,202,696 (297)

Experimental study on adsorption characteristics of coal by acidification−gas wettability alteration

open access: yesMeitan kexue jishu
In the deep mining stage of coal mine, the permeability of coal seam decreases with the increase of in-situ stress. Coal seam acidification technology improves the permeability by dissolving the fillers in pores and fissures, but water blocking effect ...
Zhiguo XIAO   +4 more
doaj   +1 more source

Svojstva i struktura wolframkarbid-kobalt prevlake deponovane plazma-sprej postupkom

open access: yesVojnotehnički Glasnik, 2013
Cilj istraživanja bio je da se optimizacijom plazma-sprej parametara deponuju WC17Co slojevi optimalnih strukturno-mehaničkih karakteristika. Prah je deponovan plazma-sprej postupkom na atmosferskom pritisku (APS).Pri izboru parametara kao osnovni ...
Mihailo Rade Mrdak
doaj   +1 more source

Regional brain blood flow in man during acute changes in arterial blood gases [PDF]

open access: bronze, 2012
Chris K. Willie   +10 more
openalex   +1 more source

One step fabrication of aligned carbon nanotubes using gas rectifier [PDF]

open access: gold, 2022
Toshihiko Fujimori   +11 more
openalex   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi   +5 more
wiley   +1 more source

Development of high-performance roll-to-roll-coated gas-diffusion-electrode-based fuel cells

open access: bronze, 2021
Scott A Mauger   +11 more
openalex   +2 more sources

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Ultrafine particles and nitrogen oxides generated by gas and electric cooking [PDF]

open access: bronze, 2001
Martine Dennekamp   +5 more
openalex   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

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