Results 71 to 80 of about 1,243,534 (206)

Effects of Glide Path Preparation on Apical Debris Extrusion in Root Canal Treatment: A Systematic Review [PDF]

, 2023
Introduction: Using a glide path preparation with nickel-titanium rotary files or hand files helps prevent fracture of instruments and maintains the original anatomy of a root canal.
Dritali patel, Chintan Joshi, Sweety Thumar, Niraj Kinariwala, Aashray Patel, Juhi Dholani
core   +1 more source

Improved Deformability of Co‐Free Medium Entropy Oxides by Controlled Entropy Destabilization

Advanced Science, EarlyView.
Controlled entropy destabilization activates defect‐mediated plasticity in Co‐free (CuMgNiZn)O by promoting pre‐existing Cu‐rich secondary phases that serve as defect sources. Temperature‐dependent dislocation activity evolves from limited motion at room temperature to extensive glide and stacking‐fault formation at 600 °C, enabling improved plasticity
Chang Liu, Ke Xu, Zhongxia Shang, Yang Chen, Debargha Paul, Yinghang Liu, Jeremy Gan, Shiyu Zhou, R. Edwin García, Xinghang Zhang, Haiyan Wang   +10 more
wiley   +1 more source

Habitat‐Specific Design Strategies for Untethered Soft Robots

Advanced Science, EarlyView.
Habitat shapes the design of untethered soft robots. Across land, water, air, and living tissues, environmental constraints govern viable combinations of compliant structures, actuation mechanisms, and energy delivery. This review connects these constraints with robotic performance and identifies design principles for advancing adaptable, durable, and ...
Siyang Li, Zhikun Miao, Tuck‐Whye Wong, Tiefeng Li   +3 more
wiley   +1 more source

The influence of glide path preparation on the failure rate of WaveOne reciprocating instruments [PDF]

, 2014
INTRODUCTION: The aim of this study was to determine the influence of two different glide path preparation methods on the fracture rate of the Primary 25/08 WaveOne reciprocating instrument.
Van der Vyver, Petrus Jacobus, Jonker, Casper Hendrik, De Wet, Francois A.   +2 more
core   +1 more source

Hierarchical Chemical Fluctuations Promote Exceptional Strength–Ductility–Modulus Synergy in Biomedical BCC Multi‐Principal‐Element Alloys

Advanced Science, EarlyView.
Hierarchical chemical fluctuations are engineered in a biomedical BCC Ti35Zr35Nb10Hf10Ta5Sn5 multi‐principal‐element alloy through contrasting Sn–element interactions. The resulting multiscale chemical–strain heterogeneity promotes dislocation interactions and kink‐band‐mediated partitioned plasticity, enabling the as‐cast alloy to achieve a yield ...
Jiakun Wang, Jiayao Zhong, Jinxi Guo, Jonathan Aristya, Minghang Zhou, Liang Zhu, Xipeng Tan, Jinfu Li   +7 more
wiley   +1 more source

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku, Sangbin Park, Sunha Hwang, Sunghyun Lim, Won‐Sub Yoon, Jongsoon Kim   +5 more
wiley   +1 more source

Glide-path stability of an aircraft under speed constraint [PDF]

, 1971
The motion of an aircraft operating under perfect speed constraint (e.g. by an appropriate autothrottle) is examined theoretically and it is shown that, if engine thrust acts through the aircraft centre of gravity, the aircraft will have weak flight path
W. J. G. Pinsker
core   +1 more source

Comparison of glide paths created with K-files, PathFiles, and the ProGlider file, and their effects on subsequent WaveOne preparation in curved canals

BMC Oral Health, 2018
Background The root canal glide path has been recommended as the foundation for a safer root canal preparation. The aim of this study was to compare glide paths created with K-files, PathFiles, and the ProGlider file, and their effects on subsequent ...
Linxia Zheng, Xiongfei Ji, Chengxi Li, Lulu Zuo, Xin Wei   +4 more
doaj   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Comparison of the centering ability of Wave·One and Reciproc nickel-titanium instruments in simulated curved canals

Restorative Dentistry & Endodontics, 2013
Objectives The aim of this study was to evaluate the shaping ability of newly marketed single-file instruments, Wave·One (Dentsply-Maillefer) and Reciproc (VDW GmbH), in terms of maintaining the original root canal configuration and curvature, with or ...
Young-Jun Lim, Su-Jung Park, Hyeon-Cheol Kim, Kyung-San Mi   +3 more
doaj   +1 more source