Results 41 to 50 of about 2,344,833 (239)

A New Method for Prediction of Dental Arch Perimeter

Clinical, Cosmetic and Investigational Dentistry, 2019
Nadia Basim Al-Ansari,1 Suha Ali Abdul Ameer,1 Mohammed Nahidh2 1Department of POP, Al-Rafidain University College, Baghdad, Iraq; 2Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, IraqCorrespondence: Mohammed ...
Al-Ansari NB, Abdul Ameer SA, Nahidh M
doaj  

Simple treatment of a complex malocclusion: a case report [PDF]

Iranian Journal of Orthodontics, 2012
Background and aim: Clinical signs of tooth-size- arch length discrepancy are crowding, impaction, and incisor proclination. The controversy persists over whether to increase the size of the arch by expansion or decrease the size of the teeth by ...
M‪ohammadkarim Soltani, ‪Farzaneh Golfeshan, Reza Mahvelati Shamsabadi   +2 more
doaj   +1 more source

Study on effect of working face length on overburden caving form and force chain arch characteristics

Meikuang Anquan, 2021
Using theoretical analysis combined with numerical simulation, the inclination composite force chain arch structure is proposed, and the characteristics of the force chain arch under the influence of surface length are analyzed. The research result shows
LIU Yiyang, SHI Guangliang, ZHANG Guanglei, LI Zhijun, SONG Xuanmin
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Comparative study on the influence of two kinds of different self ⁃locking brackets on the dental arch shape change in non⁃extraction patients

口腔疾病防治, 2017
Objective By analyzing changes of dental arch width and length during the aligning and leveling period (non ⁃ extraction case) with two kinds of self ⁃locking bracket, compare the difference between the active self ⁃locking bracket with the passive ...
LIU Ai⁃qing, CHEN Zao, ZHANG Ji⁃dong, YUAN qiang   +3 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Relationship of Dental crowding with Mesiodistal Crown Diameters and Arch Dimension [PDF]

Iranian Journal of Orthodontics, 2013
Background and aim: The objective of this study is determining the correlation among the dental crowding and mesiodistal tooth width and dental arch dimensions.Materials and methods: In this case-control study dental casts of two groups of 40 subjects ...
‪Susan Sadeghian, ‪Nasim Esnaashari, N. Ghoreishi   +2 more
doaj   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source