The crystal structure of diphenyl disulfone has been determined by X-ray diffraction at room temperature. Observed (average) values for the bonds involving a sulfur atom are: S 1.753(1) Å. In parentheses the standard deviations for the individual bonds are given....
33, No.2, pp 190-198 (2001) Studies on Different Types of Hydrogen Bonds in Poly(vinyl alcohol) Films by 1H CRAMPS and Solid-State Two-Dimensional 1H-13C Heteronuclear Correlation Analyses Kenji MASUDA, Hironori KAJI, and Fumitaka HORIIt Institute for Chemical Research, Kyoto University, Uji...
Thus, providing a larger surface area, enhancing the bonding, and forming stronger bonds28. The sandblasting method caused an increase in the bonding strength, which may be explained by exposing the surface layer and removing it to reach a surface with a higher free surface energy29. The free...
In some cases, the strength of female bonds suffices to maintain OMU integrity despite the absence of the male28. It is worth noting that between gelada females only YW1 and YW2 elicited a precise mir- roring during yawn contagion13 thus suggesting the importance of these two types of yawn ...
A number of different types of bonds maintain the structure of proteins. These include disulphide, hydrogen and ionic bonds, as well as hydrophobic interactions. Some of these are stronger than others. Which are the strongest?A.disulphide bondsB.hydrogen
On the other hand, various types of bonds between the post and core build-up were examined by Nothdurft FP and Pospiech PR.52 Pressing, adhesive cementation, and milling of the entire structure. The breaking load and the deflection at fracture were measured and compared....
The oxygen and carbon atoms of these active compounds formed the different hydrogen bonds with different amino acid residues of MC1R (SA: Gln112, Asp115, Leu10; PA: Asp115, Asp119, Leu10; p-CA: Asp119; VA: Asp115, Asp119, Leu10; CA: Asp115, Asp119). Furthermore, p-CA, VA ...
The microstructural analysis underlined crack formation, voids and porosities in the geopolymer matrix at elevated temperatures, affecting the physical and mechanical properties of the material. The study presents significant insights into the behaviour of low-calcium fly ash-based geopolymer concrete with...
It is proposed that cystamine inhibits TGase activity by forming mixed disulfide bonds that may block the formation of a thioester acylenzyme intermediate or by com- peting with transamidation reaction between the ε-amino group of a peptide-bound lysine residues and the γ-glutamyl residue of ...
2012). In the case of carbon bound to mineral surfaces, also known as mineral-associated organic matter (MAOM), organic molecules are bound to the surfaces by strong covalent (ligand exchange) or weak intermolecular (van der Waals) chemical bonds (von Lützow et al. 2007; Lehmann and Kleber...