Results 81 to 90 of about 1,317,920 (329)

Comparison of radiographic density and compaction index of root canal obturation using nickel titanium or stainless-steel spreaders

The Journal of Qazvin University of Medical Sciences, 2016
Background: Both nickel titanium and stainless-steel spreaders are available. The obvious advantage of nickel titanium spreader over stainless steel spreaders is greater penetration in curved canals.
M. Adel, I. Motabha, M. Samifar
doaj  

THE EFFECT OF ENVIRONMENTAL FACTORS ON ELASTOMERIC CHAINS AND NICKEL TITANIUM COIL SPRINGS

RUDN Journal of Medicine, 2017
It is well known that elastomers exhibit viscoelasticity and as such have their mechanical properties modified by temperature. Nickel titanium archwires are also affected by temperature and have been modified with specific temperature related properties ...
A N Shaddud, T F Kosyreva
doaj   +1 more source

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

Advanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou, Qing Wu, Jiawei Lin, Kunchen Li, Yulong Ying, Josep Puigmartí‐Luis, Salvador Pané, Sheng Wang   +7 more
wiley   +1 more source

Arrayed Magnetic Accelerator Synergistically Enhances Orthodontic Tooth Movement via Microtubule Assembly‐Mediated Periodontal Remodeling

Advanced Science, EarlyView.
Mechanical orthodontic treatment for malocclusion is limited by slow remodeling and risks due to poor biomechanical sensing. This study shows that static magnetic fields (SMFs) enhance mechanical sensation in periodontal ligament cells, promoting inflammation and osteoclast activity.
Yiling Lou, Jiwei Sun, Peng Chen, Caihong Mao, Junyuan Zhang, Haoqi Lei, Xiaoqing Han, Yaxuan Zhang, Yuheng Jiang, Yulin Jia, Bin Su, Lili Chen   +11 more
wiley   +1 more source

Thermal and Electrical Conductivities of Iron, Nickel, Titanium, and Zirconium at Low Temperatures

, 1956
Measurements are reported of the thermal and electrical conductivities of iron, nickel, titanium, and zirconium down to 2 K. These indicate that thermal conduction in pure iron and nickel is almost completely electronic.
GK White, WRG Kemp, PG Klemens
core   +1 more source

Morphology‐Defined Entropy Streams for Random‐Bit Generation and Probabilistic Sampling in Memristor Arrays

Advanced Science, EarlyView.
Au nanoisland morphology defines stochastic high‐resistance‐state transport in Ag/TiO2 memristor arrays, transforming nanoscale structural disorder into a tunable physical entropy resource. Morphology‐controlled field hotspots and reset‐modulated nanogaps generate statistically validated random‐bit streams, which further serve as device‐derived ...
Hyunjun Kim, Da Ye Kim, Noah Jang, Yongho Lee, Byunghun Song, June Soo Kim   +5 more
wiley   +1 more source

An In Vivo Randomized Clinical Evaluation of the Surface Morphology of Nickel-Titanium, Beta-titanium, and Copper-Nickel-Titanium.

The journal of contemporary dental practice, 2020
Variation in the surface roughness of archwires not only leads to more accumulation of plaque but also modifies the coefficient of friction. This necessitated for the present study to evaluate the surface characteristics of 0.016 × 0.022-inch nickel-titanium, beta-titanium, and copper-nickel-titanium archwires, before and after their use in the oral ...
Apoorva, Sahu, Veera, Bhosale, Dhananjay, Ghunawat, Pallavi, Madanshetty, Girish, Rathi, Mohammed Ya, Khan   +5 more
openaire   +1 more source

Freestanding PZT Films for Integrated Wearable Sensing and Intelligent Acoustic Recognition

Advanced Science, EarlyView.
A freestanding epitaxial PZT/LaNiO3/Pt heterostructure is achieved via water‐assisted delamination from mica, effectively eliminating substrate‐induced clamping and releasing intrinsic ferroelectricity. The released film exhibits substantially enhanced remanent polarization and piezoelectric response, delivering excellent mechanical flexibility and ...
Hailong Pan, Zhichao Xu, Rongxiao Liu, Jianmei Pei, Changhong Yang, Shifeng Huang, Michael Wübbenhorst   +6 more
wiley   +1 more source

Microstructural investigations of laser welded dissimilar Nickel-Titanium-steel joints

, 2009
Nickel-titanium based shape memory alloys are used in a variety of applications. These applications desire joining techniques that provide only local degradation of the functional properties and are compatible to the special mechanical properties of ...
W. Theisen, H. Gugel
core   +1 more source

Wafer‐Scale Dendritic Nanoporous Platinum Films for Neural Electrodes

Advanced Science, EarlyView.
Wafer‐scale dendritic nanoporous platinum films with intrinsic nanoscale porosity are synthesized by suraface‐confined wet chemistry and transferred onto flexible substrates to create tissue‐conformal neural electrodes. The ultrathin films combine mechanical flexibility with electrochemical stability, enabling low‐impedance, high‐capacitance interfaces
Kyeongbin Kang, Joosung Oh, Soumen Dutta, Sun Woo Jang, Byeong Su Gu, Woosung Cho, Mingyu Kwak, Sunguk Hong, Seongjae Lee, Hyo Kyoung Jeon, Juwan Han, Keehoon Kim, Sung‐Min Park, Unyong Jeong, In Su Lee   +14 more
wiley   +1 more source