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Transient liquid phase bonding of carbon steel tubes using a Cu interlayer: Characterization and comparison with amorphous Fe–B–Si interlayer bonds
(Elsevier, 2013-12)
In the present work the transient liquid phase bonding process was performed to join seamless carbon steel tubes using commercially pure Cu interlayers. The structural and mechanical characteristics of the resulting bonds ...
NMR spin–spin coupling constants in hydrogen-bonded glycine clusters
(John Wiley & Sons Inc, 2018-08)
The influence of the hydrogen bond formation on the NMR spin–spin coupling constants (SSCC), including the Fermi contact (FC), the diamagnetic spin-orbit, the paramagnetic spin-orbit, and the spin dipole term, has been ...
NMR Spectroscopic Parameters of Molecular Systems with Strong Hydrogen Bonds
(American Chemical Society, 2010-07)
A series of closed H-bonded molecules that have (or not) delocalized bonds were studied. The dependence of both NMR spectroscopic parameters σ and J-couplings, and also the energy stability of such molecules with H-bond ...
Influence of steroids on hydrogen bonds in membranes assessed by near infrared spectroscopy
(Elsevier Science, 2021-04-01)
The covalent O[sbnd]H bonds of water vibrate and absorb radiation in the near infrared (NIR) region at wavelengths that vary according to the strength of the bonds which, at the same time, are sensitive to the number and/or ...
Análisis comparativo in vitro de la resistencia adhesiva de restauraciones de resina compuesta realizadas con Single Bond Universal (3M) con y sin grabado ácido previo
(Universidad Finis Terrae (Chile) Facultad de Odontología, 2013)
En el presente estudio se evaluó el grado de resistencia adhesiva de
restauraciones de resina compuesta realizadas con adhesivo Single Bond
Universal sobre esmalte y dentina con y sin grabado ácido previo.
Para ello se ...
Role of the medium on the C343 inter/intramolecular hydrogen bond interactions. An absorption, emission, and 1HNMR investigation of C343 in benzene/n-heptane mixtures
(American Chemical Society, 2010-07-21)
C343, a common molecular probe utilized in solvation dynamics experiments, was studied in homogeneous media. Absorption, emission, and 1HNMR spectroscopies were used to investigate the behavior of C343 in benzene and in ...
Pairing and unpairing electron densities in organic systems: Two-electron three center through space and through bonds interactions
(American Institute of Physics, 2014-05)
Two-electron three-center bonding interactions in organic ions like methonium (CH
+
5
), ethonium (C2H
+
7
), and protonated alkanes n−C4H
+
11
isomers (butonium cations) are described and characterized within ...
CLOPPA analysis of the molecular polarizability and the energy of strong intramolecular hydrogen bonds: Resonance assisted?
(American Chemical Society, 2012-11)
The contributions from localized orbitals within the polarization propagator approach (CLOPPA) method is applied to investigate the influence of the π system on the polarizability of the intramolecular hydrogen bond of ...
A comparative analysis of the informational efficiency of the fixed income market in seven European countries
(North-holland, 2012-09)
This letter investigates the time-varying behavior of long memory in sovereign and corporate bond indices of seven European Union countries from July 1998 to November 2011. We compute the Hurst exponent and detect that the ...
Isso é Danny Bond: produção de conteúdo digital pelo banco will.
(Universidade Federal do Rio Grande do NorteBrasilUFRNPublicidade e PropagandaComunicação Social, 2022)