Zobrazeno 1 - 10
of 366
pro vyhledávání: '"H. Mehl"'
Autor:
G. Strunz, J. Post, K. Zosseder, S. Wegscheider, M. Mück, T. Riedlinger, H. Mehl, S. Dech, J. Birkmann, N. Gebert, H. Harjono, H. Z. Anwar, Sumaryono, R. M. Khomarudin, A. Muhari
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 1, Pp 67-82 (2011)
In the framework of the German Indonesian Tsunami Early Warning System (GITEWS) the assessment of tsunami risk is an essential part of the overall activities. The scientific and technical approach for the tsunami risk assessment has been developed an
Externí odkaz:
https://doaj.org/article/d8b0ed0e5d25433889ec020db28f4345
Autor:
Evangelia E. Zavvou, Chris Welch, Georg H. Mehl, Alexandros G. Vanakaras, Panagiota K. Karahaliou
Publikováno v:
Materials, Vol 17, Iss 11, p 2555 (2024)
We present a comparative study of the optical and dielectric anisotropy of a laterally fluorinated liquid crystal dimer and its homologous trimer, both exhibiting two nematic phases. In the high-temperature nematic phase, both oligomers exhibit posit
Externí odkaz:
https://doaj.org/article/009ef9bdb1fe4c2699e9a3e3a4e1b20e
Autor:
Wanhe Jiang, Georg H. Mehl
Publikováno v:
Crystals, Vol 13, Iss 12, p 1614 (2023)
A new mesogenic non-symmetric dimeric monomer with a terminal olefin function, forming a twist bend nematic (Ntb) as well as a nematic (N) phase, was synthesized, using an enhanced synthetic methodology, which avoids isomerization of the terminal dou
Externí odkaz:
https://doaj.org/article/8f28713ddd284d71bb7dcddb7706e43a
Publikováno v:
Crystals, Vol 13, Iss 6, p 962 (2023)
Nematic–nematic transitions in a highly polar nematic compound are studied, in thick cells in which the molecules are aligned parallel to the substrates but perpendicular to the applied electric field, using dielectric spectroscopy in the frequency
Externí odkaz:
https://doaj.org/article/e6210c239cbd4554b558a953ec19be1c
Autor:
Robert D. Crapnell, Huda S. Alhasan, Lee I. Partington, Yan Zhou, Ziauddin Ahmed, Amal A. Altalhi, Thomas S. Varley, Nadiyah Alahmadi, Georg H. Mehl, Stephen M. Kelly, Nathan S. Lawrence, Frank Marken, Jay D. Wadhawan
Publikováno v:
ACS Omega, Vol 6, Iss 7, Pp 4630-4640 (2021)
Externí odkaz:
https://doaj.org/article/368472f26b3247158670fcf4309e8846
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 19, p 11018 (2022)
Polarized beam infrared (IR) spectroscopy provides valuable information on changes in the orientation of samples in nematic phases, especially on the role of intermolecular interactions in forming the periodically modulated twist–bent phase. Infrar
Externí odkaz:
https://doaj.org/article/1c5aa1a06c7f4062aae2a54e1ddd3809
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 14, p 8005 (2022)
Infrared spectroscopy (IR) and quantum chemistry calculations that are based on the density functional theory (DFT) have been used to study the structure and molecular interactions of the nematic and twist-bend phases of thioether-linked dimers. Infr
Externí odkaz:
https://doaj.org/article/0336ecda8a6549a183c3ef35833eaa26
Spontaneous mirror symmetry breaking and chiral segregation in the achiral ferronematic compound DIO
Publikováno v:
Articles
An achiral compound, DIO, known to exhibit three nematic phases namely N, NX and NF, is studied by polarizing microscopy and electro-optics for different surface conditions in confinement. The high temperature N phase assigned initially as a conventi
Publikováno v:
Crystals; Volume 13; Issue 6; Pages: 962
Nematic–nematic transitions in a highly polar nematic compound are studied, in thick cells in which the molecules are aligned parallel to the substrates but perpendicular to the applied electric field, using dielectric spectroscopy in the frequency
Publikováno v:
Journal of Umm Al-Qura University for Applied Sciences.
The intense absorbance and scattering of incident light at the surface plasmon resonance wavelength of gold nanoparticles (AuNPs) is of paramount importance in its various and diverse applications. Being governed by their morphologies and surface che