Results 131 to 140 of about 1,781,800 (273)

Unique Lewis and Bronsted acidic sites texture in the selective production of tetrahydropyran and oxepanefrom1,5-pentanediol and 1,6-hexanediol over sustainable red brick clay catalyst

Heliyon, 2019
Activated red brick (ARB) clay material proved superb catalyst for selective conversion of 1,5-pentanediol (1,5-PDO) to tetrahydropyran (THP) and 1,6-hexanediol (1,6-HDO) to oxepane (OP) via dehydration under vapor phase conditions in a continuous flow ...
Venkata Rao Madduluri, Naresh Kumar Katari, Nagaiah Peddinti, Challa Prathap, David Raju Burri, Seetha Rama Rao Kamaraju, Sreekantha B. Jonnalagadda   +6 more
doaj  

Effect of Water Aging on the Mechanical Properties of Hybrid Carbon/Aramid Reinforced Thermoplastic Composites

Advanced Engineering Materials, EarlyView.
This study investigates the mechanical properties of Carbon/Aramid intraply hybrid fiber‐reinforced Elium composites under 6 months of water aging. After aging, flexural strength decreases by 25.89%, tensile strength by 4.40%, and fracture toughness by 21.56%.
Muhammed Huseyin Guzel, Gurol Onal
wiley   +1 more source

Session Physical Chemistry

CHIMIA, 2017
Spichiger David
doaj   +2 more sources

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar   +3 more
wiley   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Session Physical Chemistry

CHIMIA, 2018
David Spichiger
doaj   +2 more sources

Session Physical Chemistry

CHIMIA, 2020
David Spichiger
doaj  

Session Physical Chemistry

CHIMIA, 2022
Céline Wittwer
doaj  

Oxygen vacancy enhanced photocatalytic activity of Cu2O/TiO2 heterojunction

iScience
Summary: In this study, a method was developed to create oxygen vacancies in Cu2O/TiO2 heterojunctions. By varying the amounts of ethylenediaminetetraacetic acid (EDTA), sodium citrate, and copper acetate, Cu2O/TiO2 with different Cu ratios were ...
Hong Qian, Binxia Yuan, Yuhao Liu, Rui Zhu, Weiling Luan, Chengxi Zhang   +5 more
doaj  

Teaching Undergraduate Students through Connectivity

RADS Journal of Biological Research & Applied Science, 2011
In present time it is essential that science education should equip students with such knowledge and skills that they become scientifically literate citizens.
Misbah Nazir, Iftikhar Imam Naqvi
doaj