Results 81 to 90 of about 106,957 (303)

Regeneration of Used Engine Lubrication Oil by Solvent Extraction. The Solvent Influence on Oil Ratio

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2013
Huge amounts of used lubricating oils from automotive sources are disposed of as a harmful waste into the environment. For this reason, means to recover and reuse these wastes need to be found.
Ancaelena Eliza STERPU   +2 more
doaj  

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

open access: yesAdvanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan   +2 more
wiley   +1 more source

Formulation procedures, rationale, and preliminary IMP-H flight data for silicone paints with improved stability [PDF]

open access: yes
Results are given of a class of silicone paints undergoing space qualification on IMP-H. In addition to ultraviolet irradiation, samples are presently reclining about 10 to the 16th power solar wind protons per year.
Schutt, J. B., Shai, C. M.
core   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

Structural Properties, Order-Disorder Phenomena and Phase Stability of Orotic Acid Crystal Forms [PDF]

open access: yes, 2016
Orotic acid (OTA) is reported to exist in the anhydrous (AH), monohydrate (Hy1) and dimethylsulfoxide monosolvate (SDMSO) forms. In this study we investigate the (de)hydration/desolvation behavior, aiming at an understanding of the elusive structural ...
Brittain H. G.   +12 more
core   +3 more sources

Dehydration System for organic solvents by vapor permeation

open access: yesmembrane, 2001
UBE's process is based on the dehydration in vapor phase. Use of BPDA-polyimide makes it possible to produce a membrane with characteristics that include good water vapor permeation and excellent durability. The ethanol dehydration process has been used in UBE's chemical plant since 1990, resulting in reduced operating cost and improved operational ...
Masao Kikuchi, Yoshihiro Kusuki
openaire   +2 more sources

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Solvent-free Dehydration of Alcohols using LiCl-acidic Alumina

open access: yesOriental Journal Of Chemistry, 2012
During recent years, the microwave irradiation in conjunction with the solid supported catalysts was used to perform a wide range of organic reactions.1,2 The most advantages for these solvent-free microwave-assisted reactions are the high reaction yields, improvement in reaction selectivity, remarkable practical and handling simplicity, decreasing in ...
G. BAGHERI MARANDI   +2 more
openaire   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

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