Results 31 to 40 of about 10,808 (203)

Comparison of Cyclic Fatigue Resistance of Heat-Treated Nickel-Titanium Reciprocating Instruments at the Intracanal Temperature

Balkan Journal of Dental Medicine, 2021
Background/Aim: The aim of the present study was to compare the cyclic fatigue resistance of NiTi files running with reciprocal motion and having different characteristics (RPC Blue, WOG, EndoArt Wise Reciproc Gold, EndoArt Wise Reciproc Blue) at the ...
Keskin Neslihan Büşra, Güneç Gürkan
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Unconventional precipitation and martensitic transformation behaviour of Ni-rich NiTi alloy fabricated via laser-directed energy deposition

Virtual and Physical Prototyping, 2023
In this study, we report an unconventional precipitation and martensitic transformation behaviour of directly aged Ni-rich NiTi alloys fabricated via laser-directed energy deposition (LDED).
Jingtao Kang, Ruidi Li, Dan Zheng, Huiting Wu, Minbo Wang, Pengda Niu, Jian Li, Xinyan Liu, Duan Lai, Tiechui Yuan   +9 more
doaj   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Characterization of a measurement setup for the thermomechanical characterization of curved shape memory alloy actuators

Current Directions in Biomedical Engineering, 2019
The bend and free recovery (BFR) test according to ASTM F2082 is a standard method to determine the transition temperatures of Nitinol shape memory alloys (SMAs).
Suzaly Nuha, Keller Marie Christina, Hügl Silke, Lenarz Thomas, Rau Thomas S., Karsten Elvira   +5 more
doaj   +1 more source

The Degree to which Kindergarten Teachers in Jordan Possess Scientific and Engineering Practices in Light of the Next Generation Science Standards (NGSS)

دراسات: العلوم التربوية, 2022
Objectives: This study aims to identify the degree to which kindergarten teachers in Jordan possess scientific and engineering practices in light of the Next Generation Science Standards (NGSS).
Mohammad Khair N. Nawafleh, Amal Fakhari Jaradat   +1 more
doaj   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Evaluation of the Effect of Reverse Curve of Spee in Nickel Titanium (NiTi) Wire with and Without Torque on Lower Incisors: A Clinical Study

Journal of Pharmacy and Bioallied Sciences
Introduction: The study aimed to evaluate the impact of the reverse curve of Spee in nickel-titanium (NiTi) wire both with and without torque on lower incisors. Materials and Methods: Twenty patients were divided into 2 groups. The inclusion criteria for
Yash K. Shekatkar, MV Ashith, Sunil Muddiah, Rainee Solanki, Neelutpal Bora, K. PT Haneesh, Ranjan Bhat   +6 more
doaj   +1 more source