Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Welch, Chris A."'
Autor:
Zavvou, Evangelia E., Ramou, Efthymia, Ahmed, Ziauddin, Welch, Chris, Mehl, Georg H., Vanakaras, Alexandros G., Karahaliou, Panagiota K.
Publikováno v:
Soft Matter, 2023, 19, 9224-9238
We report on the temperature dependence of birefringence and of the static dielectric permittivity tensor in a series of binary mixtures between the symmetric, bent-shaped, 1",9"-bis(4-cyanobiphenyl-4'-yl) nonane (CB9CB) dimer and the monomeric nemat
Externí odkaz:
http://arxiv.org/abs/2311.00675
Autor:
Zavvou, Evangelia E.1 (AUTHOR) ezavvou@upatras.gr, Welch, Chris2 (AUTHOR) c.welch@hull.ac.uk, Mehl, Georg H.2 (AUTHOR) g.h.mehl@hull.ac.uk, Vanakaras, Alexandros G.3 (AUTHOR) a.g.vanakaras@upatras.gr, Karahaliou, Panagiota K.1 (AUTHOR)
Publikováno v:
Materials (1996-1944). Jun2024, Vol. 17 Issue 11, p2555. 13p.
The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase
The relationship between the molecular structure and the formation of the NTB phase is still at an early stage of development. This is mainly related to molecular geometry, while the correlation between the NTB phase and the electronic structure is a
Externí odkaz:
http://arxiv.org/abs/2012.07702
Autor:
Saha, Rony, Feng, Chenrun, Welch, Chris, Mehl, Georg H., Feng, Jun, Zhu, Chenhui, Gleeson, James, Sprunt, Samuel, Jakli, Antal
The nanostructure of two novel sulfur containing dimer materials has been investigated experimentally by hard and by resonant tender X-ray scattering techniques. On cooling the dimers through the nematic to twist-bend nematic (N-NTB) phase transition
Externí odkaz:
http://arxiv.org/abs/2011.09535
IR polarized spectroscopy was employed, to obtain the three components of IR absorbance for a series DTC5Cn (n=5,7,9,11) of bent-shaped dimers containing double fluorinated terphenyl core. Then, they were used to calculate both uniaxial (S) and biaxi
Externí odkaz:
http://arxiv.org/abs/2010.14896
Recent miniaturization of electronics in very small, low-cost and low-power configurations suitable for use in spacecraft have inspired innovative small-scale satellite concepts, such as ChipSats, centimeter-scale satellites with a mass of a few gram
Externí odkaz:
http://arxiv.org/abs/2009.08396
Autor:
Heist, Leah M., Samulski, Edward T., Welch, Chris, Ahmed, Ziauddin, Mehl, Georg H., Vanakaras, Alexandros G., Photinos, Demetri J.
Publikováno v:
Liquid Crystals, 2020
The quadrupolar splittings of perdeuteriated n-decane dissolved in nematic phases formed by mesogenic dimers of the CBnCB series, for n=7,9,10,11 are measured throughout the entire temperature range of these phases. The results of the measurements, a
Externí odkaz:
http://arxiv.org/abs/1909.08890
Asteroid mining offers the possibility to revolutionize supply of resources vital for human civilization. Preliminary analysis suggests that Near-Earth Asteroids (NEA) contain enough volatile and high value minerals to make the mining process economi
Externí odkaz:
http://arxiv.org/abs/1808.05099
Autor:
Panov, Vitaly P., Sreenilayam, Sithara P., Panarin, Yuri P., Vij, Jagdish K., Welch, Chris J., Mehl, Georg H.
Photo-polymerization of a reactive mesogen mixed with a mesogenic dimer, shown to exhibit the twist-bend nematic phase ($N_{TB}$), reveals the complex structure of the self-deformation patterns observed in planar cells. The polymerized reactive mesog
Externí odkaz:
http://arxiv.org/abs/1708.07013
Autor:
Kitto, Rebekah Z., Dhillon, Yadvender, Bevington, James, Horne, Mera, Giegé, Philippe, Drouard, Laurence, Heintz, Dimitri, Villette, Claire, Corre, Nicolas, Arrivé, Mathilde, Manefield, Michael J, Bowman, Robert, Favier, Jean-Jacques, Osborne, Barnaby, Welch, Chris, McKay, Christopher P., Hammond, Ming C.
Publikováno v:
In Life Sciences in Space Research February 2021 28:57-65