Results 101 to 110 of about 910,601 (311)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of Sucrose Spray on some Phytochemical Characteristics of Stevia (Stevia rebaudiana Bertoni) under Field Conditions [PDF]

پژوهشنامه اصلاح گیاهان زراعی
Extended Abstract Background: Sugars are one of the important components in the human diet, along with fats and proteins, which provide about 60-70% of their energy.
Vahid Akbarpour, Hossein Aruei, Kambiz Mashayekhi, Majid Azizi Arani, Mohammad Ali Bahmanyar   +4 more
doaj  

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Concentrations and fluxes of biogenic volatile organic compounds above a Mediterranean macchia ecosystem in western Italy [PDF]

, 2009
Emission rates and concentrations of biogenic volatile organic compounds (BVOCs) were measured at a Mediterranean coastal site at Castelporziano, approximately 25 km south-west of Rome, between 7 May and 3 June 2007, as part of the ACCENT-VOCBAS field ...
Fares, S, Misztal, P, S. Fares, J. N. Cape, Cape, J. N, Fares, S., P. Misztal, Loreto, F, Rinne, J., Langford, B., Matteucci, G, Hewitt, C. N., Davison, B., Cape, J.N., Loreto, F., Cape, J. N., Taipale, Risto, B. Langford, Rinne, Janne, Hewitt, C. N, C. N. Hewitt, R. Taipale, Taipale, R., B. Davison, G. Matteucci, Hewitt, C.N., Langford, B, J. Rinne, Davison, B, Misztal, P., F. Loreto, Matteucci, G.   +31 more
core  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Dynamic Activation of C1 Molecules Evoked by Zeolite Catalysis

ACS Central Science, 2021
Xinqiang Wu, Wei Chen, Shutao Xu, Shanfan Lin, Tantan Sun, Anmin Zheng, Yingxu Wei, Zhongmin Liu   +7 more
doaj   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

The crystal structure of perdeuterated methanol monoammoniate (CD3OD center dot ND3) determined from neutron powder diffraction data at 4.2 and 180 K

, 2009
The crystal structure of perdeuterated methanol monoammoniate, CD3OD center dot ND3, has been solved from neutron powder diffraction data collected at 4.2 and 180 K.
Knight, KS, Wood, IG, Fortes, AD
core  

Carbon isotope anomaly in the major plant C-1 pool and its global biogeochemical implications

, 2004
We report that the most abundant C-1 units of terrestrial plants, the methoxyl groups of pectin and lignin, have a unique carbon isotope signature exceptionally depleted in C-13.
Kalin, R., Keppler, F., Hamilton, JTG, McRoberts, WC, Harper, DB   +4 more
core   +1 more source

Study of the Ternary Mixture of Methanol/Formamide/Acetonitrile via Solvatochromic Probes

Molecules
Following previous studies, the ternary mixture of methanol/formamide/acetonitrile (MeOH/Formamide/MeCN) was studied using the UV-Vis absorption spectra at 298.15 K with a set of five probes, 4-nitroaniline, 4-nitroanisole, 4-nitrophenol, N,N-dimethyl-4 ...
Nelson Nunes, Ruben Elvas-Leitão, Filomena Martins   +2 more
doaj   +1 more source