Results 61 to 70 of about 1,060,196 (306)

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

As faces da alteridade e a formação de professores da Licenciatura em Pedagogia da UEPG

open access: yesRevista de Educação Pública, 2013
O presente trabalho tem por objetivo discutir a noção de alteridade, propondo-se a investigar a forma pela qual esta é constituída no curso de Licenciatura em Pedagogia da Universidade Estadual de Ponta Grossa (UEPG).
Jonathan de O. MOLAR, Priscila LAROCCA
doaj  

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Les dents moustériennes de la grotte Boccard, lieu-dit Bas-de-Morant (commune de Créancey, Côte-d'Or, Bourgogne)

open access: yesBulletins et Mémoires de la Société d’Anthropologie de Paris, 2008
The Boccard cave is located in the Créancey municipality of the Côte-d’Or. A clear stratigraphy has been defined with a Mousterian layer in which three human permanent teeth were discovered: a lateral upper left incisor, an upper second right premolar ...
Bruno Maureille   +4 more
doaj   +1 more source

Anatomical characteristics of the furcation area and root surfaces of multi-rooted teeth: Epidemiological study [PDF]

open access: yesVojnosanitetski Pregled, 2019
Background/Aim. Knowledge of numerous variations in anatomical features of furcation area is a prerequisite for the achievement of more predictable results in the therapy of multi-rooted teeth with furcation involvement (FI).
Kadović Jana   +6 more
doaj   +1 more source

The effect of F on the density of haplogranite melt [PDF]

open access: yes, 1993
The densities and thermal expansivities of F-bearing haplogranitic glasses and liquids have been investigated using a combination of scanning calorimetry and dilatometry. F2O-1 reduces the density of haplogranitic liquids (at 750 °C) from 2.295 + 0.006 g/
Dingwell, Donald B.   +2 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Molar volume of solid isotopic helium mixtures

open access: yes, 2008
Solid isotopic helium mixtures have been studied by path-integral Monte Carlo simulations in the isothermal-isobaric ensemble. This method allowed us to study the molar volume as a function of temperature, pressure, and isotopic composition.
Carlos P Herrero   +11 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Unerupted lower third molar as a cause of acute infection in soldiers [PDF]

open access: yesVojnosanitetski Pregled, 2005
Background/Aim. To record the frequency of infections as complications accompanying the unerupted lower third molars and to determine if there was a significant level of the relationship between the frequency and the severity of infections and the age of
Matijević Stevo, Marjanović Marjan
doaj   +1 more source

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