Results 81 to 90 of about 898,797 (309)

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

III Taller Internacional de Arte Rupestre. [PDF]

, 2008
Following the discovery of a large Late Bronze Age/Early Iron Age settlement, beneath the medieval town of Monsaraz, careful inspection of the slate outcrops, around and inside the walled area of the proto-historic settlement, allowed the observation of ...
Calado, Manuel, Pimenta, Alexandra, Rocha, Leonor, Santos, Ivo   +3 more
core  

Anemia among Children Exposed to Polyparasitism in Coastal Kenya [PDF]

, 2015
Anemia represents a substantial problem for children living in areas with limited resources and significant parasite burden. We performed a cross-sectional study of 254 Kenyan preschool-and early school-age children in a setting endemic for multiple ...
Bustinduy, Amaya L, Cojulun, Alicia Chang, King, Charles H, Kitron, Uriel, Muchiri, Eric, Mungai, Peter L, Mutuku, Francis, Sutherland, Laura J   +7 more
core   +2 more sources

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

Разведки в черноморском р-не АР Крым [PDF]

, 2013
В рамках программы "Economic Models and Adaptation Strategies in a Varying Cultural and Environmental Context: Northern Black Sea in the Late Bronze Age and Early Iron Age" датско-украинско-российский Западно-Крымский археологический проект (WCAP) в 2012
Андерсен, Й., Лисецкий, Ф. Н., Столба, В. Ф., Храпунов, И. Н.   +3 more
core  

Lithium evolution in intermediate age and old open clusters: NGC 752 revisited

, 2004
We present new high resolution spectroscopic observations of the intermediate age (~2 Gyr) open cluster NGC 752. We investigate the Li vs. Teff distribution and we obtain a new accurate determination of the cluster metallicity. We compare the results for
Balachandran, Boesgaard, Boesgaard, Carlsson, Carretta, Chaboyer, Daniel, Friel, Friel, García López, Gratton, Grevesse, Heinemann, Hobbs, Hobbs, Jeffries, Jones, Kurucz, Martín, Nissen, P. Sestito, Pasquini, Pasquini, Pasquini, Pasquini, Piau, Piau, Pilachowski, Pinsonneault, Pinsonneault, Platais, R. Pallavicini, Randich, Randich, Randich, Randich, S. Randich, Sestito, Sneden, Soderblom, Spite, Swenson, Thorburn   +42 more
core   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

DWELLINGS OF THE GOROKHOVO CULTURE IN THE TRANS-URALS

Вестник археологии, антропологии и этнографии, 2019
This article generalizes data on the previously studied dwellings of the Gorokhovo culture of the Early Iron Age 7th and 2th centuries BC (Chelyabinsk, Kurgan, Tyumen regions), as well as gives their description and characteristics.
S.V. Berlina
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Book Review: Olena Fialko, Amazons: Myths and Reality, 2023. Kyiv: Institute of Archaeology of the National Academy of Sciences of Ukraine, 434 p., ill. [in Ukrainian: Олена Фіалко, Амазонки: міф або реальність, Київ: Інститут археології Національної академії наук України, 2023, 434 с., іл.], ISBN 978-617-7810-35-2

Archaeologia Polona
The Institute of Archaeology of the National Academy of Sciences of Ukraine has published Olena Fialko’s book Amazons: Myths and Reality. Actually, it is a publication of the author’s thesis for the degree of Doctor of Historical Sciences, which she ...
Evelina Kravchenko
doaj   +1 more source