نتایج جستجو برای: scotch bond

تعداد نتایج: 70879  

ژورنال: مجله دندانپزشکی 2013
جلالی, حمید , رشتاک, شاداب , صدیق‌پور, لیلا , میرمحمدرضایی, سوسن ,

  Background and Aims: Retention and stability of the post and core system is the key factor for success of final restoration . The aim of this study was to evaluate the microtensile bond strength of the different composite core materials and bonding systems to a fiber post.   Materials and Methods: To evaluate the bond strength of the composite resins to a fiber post ( DT light post) 60 posts ...

Journal: :Monthly Notices of the Royal Astronomical Society 2023

As we observe a rapidly growing number of astrophysical transients, learn more about the diverse host galaxy environments in which they occur. Host information can be used to purify samples cosmological Type Ia supernovae, uncover progenitor systems individual classes, and facilitate low-latency follow-up rare peculiar explosions. In this work, develop novel data-driven methodology simulate tim...

Journal: :Nature communications 2013
J Wu M Magrakvelidze L P H Schmidt M Kunitski T Pfeifer M Schöffler M Pitzer M Richter S Voss H Sann H Kim J Lower T Jahnke A Czasch U Thumm R Dörner

Electron motion in chemical bonds occurs on an attosecond timescale. This ultrafast motion can be driven by strong laser fields. Ultrashort asymmetric laser pulses are known to direct electrons to a certain direction. But do symmetric laser pulses destroy symmetry in breaking chemical bonds? Here we answer this question in the affirmative by employing a two-particle coincidence technique to inv...

2006
Chi Zhang Yanchao Zhang Yuguang Fang

In this paper, we propose a coverage measurement protocol (CMP) which can provide the base station an accurate and in-time measurement of the current connected coverage in an energy-efficient way, and our CMP is location-error tolerant. Moreover, the major component of our CMP, i.e., BOundary Node Detection (BOND) scheme, can be reused to provide many other functionalities for WSNs.

Journal: :Physical chemistry chemical physics : PCCP 2015
Adam J Proud Dalton E C K Mackenzie Jason K Pearson

We explore explicit electron pair behaviour within the chemical bond (and lone pairs) by calculating the probability distribution for the center-of-mass (extracule) of an electron pair described by single localized orbitals. Using Edmiston-Ruedenberg localized orbitals in a series of 61 chemical systems, we demonstrate the utility of the extracule density as an interpretive tool in chemistry. B...

2017
Stefan Vuckovic Paola Gori-Giorgi

From a simplified version of the mathematical structure of the strong coupling limit of the exact exchange-correlation functional, we construct an approximation for the electronic repulsion energy at physical coupling strength, which is fully nonlocal. This functional is self-interaction free and yields energy densities within the definition of the electrostatic potential of the exchange-correl...

Journal: :Journal of chemical theory and computation 2015
Martín A Mosquera Adam Wasserman

Conceiving a molecule as being composed of smaller molecular fragments, or subunits, is one of the pillars of the chemical and physical sciences and leads to productive methods in quantum chemistry. Using a fragmentation scheme, efficient algorithms can be proposed to address problems in the description of chemical bond formation and breaking. We present a formally exact time-dependent density ...

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