Results 181 to 190 of about 1,377,098 (387)

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych, Chongchong Tang, Carsten Schroer, Björn Schäfer, Judith Jung, Michael Dürrschnabel, Ute Jäntsch, Bronislava Gorr   +7 more
wiley   +1 more source

Paisajes agrarios del segundo milenio de la era en el sector norte del Valle de Tafí (Tucumán, Argentina)

Estudios Atacameños, 2018
Este artículo se propone discutir los resultados de investigaciones arqueológicas realizadas en el sector norte del valle de Tafí, enfocándonos específicamente en evidencias de las actividades agrícolas correspondientes a la primera mitad del segundo ...
Valeria Franco Salvi, Rocío María Molar   +1 more
doaj  

Posteruptive Effects of Fluoridation on First Permanent Molars of Children in Grand Rapids, Michigan

, 1957
Richard L. Hayes, Norman W. Littleton, Carl L. White   +2 more
openalex   +1 more source

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

Three Cases of Impacted Lower Third Molar [PDF]

, 1935
J. G. Turner
openalex   +1 more source

Titanium‐S23: A New Alloy with Ultra‐High Tensile Toughness Directly from the Solid‐State Processing of Recycled Ti–6Al–4V and Ti–5Al–5Mo–5V–3Cr Powders using Field Assisted Sintering Technology

Advanced Engineering Materials, EarlyView.
This study explores combining two existing aerospace titanium alloy powders, processing them via field‐assisted sintering technology and the subsequent discovery of a novel alloy composition, termed S23, with ultra‐high tensile toughness. Fine‐scale alpha precipitates favorably form in the alloy despite the relatively slow cooling, providing an ...
Samuel Lister, Gavin J. Baxter, Martin Jackson   +2 more
wiley   +1 more source

Evaluation of First Permanent Molars DMFT in 12 Years Old Children in Hamadan City ( 2005)

پزشکی بالینی ابن سینا, 2007
Introduction & Objective: DMFT Index is the best epidemiologic caries index in dentistry and can show the state of oral and dental hygiene in one society.
Tahereh Massom, Farzad Mojarrad, Kajal Akhtari   +2 more
doaj  

A Case of Two Buried Lower Molars [PDF]

, 1932
J. Draper Cambrook
openalex   +1 more source

Influence of Heat Treatment on Microstructure and Mechanical Properties at Elevated Temperatures of Nonweldable Ni‐Based Alloy Printed by Fused Filament Fabrication

Advanced Engineering Materials, EarlyView.
The fused filament‐fabricated MAR‐M247 alloy without hot isostatic pressing shows the lowest porosity of 4%. Heat treatment at 1220 °C produces coarse precipitates and carbides. Specimens heat‐treated at 1220 °C exhibit higher tensile strength (683 MPa) and elongation (10%) at room temperature.
Haneen Daoud, Ying Zheng, Agata Kulig, Natalja Agarkov, Esma Mese, Wolfgang Hofmann, Peter Würtele, Uwe Glatzel   +7 more
wiley   +1 more source

Third Molar Comparison in Class I and II Extraction and Non-extraction Orthodontic Treatment: A Retrospective Longitudinal Study

Turkish Journal of Orthodontics
Objective: This study compared third molar angulation and eruption status in Class I and II malocclusions after orthodontic treatment with and without first premolar extractions. Methods: The sample comprised 93 patients divided into four groups: Group 1,
Danelin Peña-Reyes, Jessica Quereza Freitas, Karina Maria Salvatore Freitas, Silvio Augusto Bellini-Pereira, Aron Aliaga-Del Castillo, Guilherme Janson, Marcos Roberto Freitas   +6 more
doaj   +1 more source