Results 141 to 150 of about 4,134,037 (313)

Multiwalled Carbon Nanotubes Modified with Biocompatible Compounds

open access: yesХімія, фізика та технологія поверхні, 2010
Oxidized with solution of hydrogen peroxide multiwalled carbon nanotubes (MWCNTs) were modified with 2-hydroxyethylmethacrylate (HEMA) or chitosan (CTS). Morphology and surface properties of the pristine and modified MWCNTs have been investigated.
Y. N. Bolbukh   +6 more
doaj  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

Reactions of Some Cyclomanganated Compounds with C-Nitroso Compounds, Allenes, and Ketenimines [PDF]

open access: yes, 2008
eta2-(5-Methoxy-2-acetylphenyl)tetracarbonylmanganese (30) was reacted with 2-methyl-2-nitrosopropane (31) to form 2-acetyl-5-methoxy-N-(tert-butyl)aniline(43) in low yield.
Revell, John Bernard
core  

PENGOLAHAN BERAS WANGI BUATAN METODE DAN RETENSI SENYAWA AROMA [Processing of Artificial Fragrant Rice The Method and Aroma Retention]

open access: yesJurnal Teknologi dan Industri Pangan, 2010
Processing of artificial fragrant rice in which one or more aroma compounds were introduced into raw milled rice were studied. The end product, which is potentially marketable, showed no visible difference in appearance from the untreated rice, and the ...
Filli Pratama
doaj  

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Aplicação de coluna de adsorção em leito fixo para a remoção de compostos BTX multicomponentes presentes em efluentes petroquímicos [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia QuímicaNeste trabalho foi realizado o estudo da adsorção e dessorção dos compostos BTX (benzeno, tolueno e o-xileno) em carvão de casca
Luz, Adriana Dervanoski da
core  

Molecular electrostatic potentials of divalent carbon (0) compounds

open access: yes, 2008
The molecular electrostatic potentials of divalent carbon(0) and divalent carbon(II) compounds are calculated and the results are compared with theoretically predicted proton affinities and complexation energies with ...
Deshmukh, Milind M.   +3 more
core   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

New routes to novel oeganofluorine compounds [PDF]

open access: yes, 1989
Use of the carbon hydrogen bond as a functional group in free radical addition reactions to fluorinated olefins has been studied. Using cyclic ethers a detailed investigation of the products obtained revealed that not only carbon hydrogen bonds a to ...
Fuss, Robert W.
core  

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