Results 231 to 240 of about 676,086 (280)

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

Advanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai, Kazuki Takahashi, Shogo Wakazaki, Takumi Nishikubo, Jun Miyake, Takehiro Koike, Teppei Nagase, Takafumi Yamamoto, Kano Hatayama, Masaichiro Mizumaki, Masaki Azuma   +10 more
wiley   +1 more source

Ultrasonic Cavity Preparation with CVD Diamond Tips: A Scanning Electron Microscopy Study of Dentin Surface Morphology and Smear Layer Formation. [PDF]

J Clin Exp Dent
Schneider M, Melo de Matos JD, Coelho Sinhoreti MA, Peiter DT, Bastian JE, Queiroz DA.   +5 more
europepmc   +1 more source

Influence of Composite Polishing Pastes on Surface Roughness and Their Stability After Simulated Tooth Brushing. [PDF]

Dent J (Basel)
Ntovas P, Korkut B, Loumprinis N, Rachiotis I, Rahiotis C.   +4 more
europepmc   +1 more source

Chair-Time During Polishing with Different Burs and Drills After Cement Customized Brackets Bonding: An In Vitro Comparative Study. [PDF]

Dent J (Basel)
Flores-Fraile J, Belanche Monterde A, Alonso-Ezpeleta O, Galletti C, Zubizarreta-Macho Á.   +4 more
europepmc   +1 more source

Influence of repeated milling bur use on the marginal adaptation of monolithic zirconia crowns. [PDF]

J Adv Prosthodont
Akınal MA, Ergünbaş B.
europepmc   +1 more source

Evaluation of the marginal and internal fit of endocrown restorations fabricated by the CAD/CAM system using additive manufacturing technique. [PDF]

Clin Oral Investig
Santos Brito EAD, Souza MM, Borges MSN, Ramos MJL, Godoi-Lopes J, Cardoso L, Sousa-Neto MD, Chaves JFM, Tirapelli C.   +8 more
europepmc   +1 more source

Navigation-Assisted Bilateral Troughing Technique for Lumbar Laminectomy: A Stepwise Approach to Safe, Teachable, and Efficient Decompression. [PDF]

Cureus
Siddiqi I, Shay A, Ueno A, Dennison S, Wong C, Rao SC, Sweiss R, Miulli DE.   +7 more
europepmc   +1 more source

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Equilibrium Stability for the Discrete Diamond–Alpha Operator

Bulletin of the Malaysian Mathematical Sciences Society, 2022
The authors investigate the stability properties of the following discrete diamond-alpha linear difference equation: \[ \Diamond_\alpha x(t):= \alpha \Delta_hx(t)+(1-\alpha)\nabla_hx(t)=\lambda x(t),\qquad \alpha\in[0,1], \] where \(\lambda\in\mathbb{C}\), \(h\in\mathbb{R}\), \(h\mathbb{Z}=\{hn:n\in\mathbb{Z}\}\), \(t_0\in\mathbb{Z}\), \(t\in[t_0 ...
Masakazu Onitsuka, Douglas R Anderson
exaly   +2 more sources

On the solutions of the n-dimensional diamond operator

Applied Mathematics and Computation, 1997
The following operator \[ {\mathcal D}= \Biggl({\partial^2\over\partial x^2_1}+\cdots+ {\partial^2\over\partial x^2_p}- {\partial^2\over\partial x_{p+1}^2}-\cdots- {\partial^2\over\partial x_{p+q}^2}\Biggr) \Delta,\quad p+q=n, \] where \(\Delta\) is the \(n\)-dimensional Laplace operator, is named the diamond operator and the linear differential ...
exaly   +2 more sources