Results 21 to 30 of about 14,465,781 (332)

Twist-joints and double twist-joints in RNA structure [PDF]

open access: yesRNA, 2012
Analysis of available RNA crystal structures has allowed us to identify a new family of RNA arrangements that we call double twist-joints, or DTJs. Each DTJ is composed of a double helix that contains two bulges incorporated into different strands and separated from each other by 2 or 3 bp.
Yury I, Boutorine, Sergey V, Steinberg
openaire   +2 more sources

The optical response of artificially twisted MoS $$_2$$ 2 bilayers

open access: yesScientific Reports, 2021
Two-dimensional layered materials offer the possibility to create artificial vertically stacked structures possessing an additional degree of freedom—the interlayer twist.
M. Grzeszczyk   +10 more
doaj   +1 more source

Order and Frustration in Chiral Liquid Crystals [PDF]

open access: yes, 2000
This paper reviews the complex ordered structures induced by chirality in liquid crystals. In general, chirality favors a twist in the orientation of liquid-crystal molecules. In some cases, as in the cholesteric phase, this favored twist can be achieved
  +37 more
core   +1 more source

Higher Twist Structure Functions [PDF]

open access: yesAustralian Journal of Physics, 1997
I discuss the importance of some of the higher twist structure functions, and then calculate the twist-two, three and four parton distribution functions involving two quark unpolarized correlations using the wavefunction of the MIT bag model.
openaire   +1 more source

Twisted Differential String and Fivebrane Structures [PDF]

open access: yesCommunications in Mathematical Physics, 2012
39 pages, major improvements, material added, other removed to be discussed more completely elsewhere; to appear in ...
Sati, H., Schreiber, U., Stasheff, J.
openaire   +4 more sources

Hodge structure on twisted cohomologies and twisted Riemann inequalities I [PDF]

open access: yesNagoya Mathematical Journal, 1999
AbstractWe show the twisted cohomology onhas a natural polarized Hodge structure and hence derive the analogues of Riemann’s equality and inequailty.
Hanamura, Masaki, Yoshida, Masaaki
openaire   +2 more sources

Tunable Electronic Structure in Twisted Bilayer WTe2

open access: yesFrontiers in Physics, 2022
The moiré pattern restricts the electronic states of transition metal bilayers, thus extending the concept of the magic angle found in twisted bilayer graphene to semiconductors.
Zi-Si Chen   +11 more
doaj   +1 more source

Novel structural design method inspired by DNA and origami

open access: yesResults in Engineering, 2019
In chiral metamaterials, the twist per axial strain (TPAS) is an important index to evaluate the tension-torsion coupling effect. Most chiral structures reported in current literatures have the appearance of lattice architectures, which possess limited ...
Nan Yang
doaj   +1 more source

Novel compact waveguide filtering twist for computer numerical control machining

open access: yesElectronics Letters, 2023
In this letter, the authors present a novel compact waveguide filtering twist that can be readily fabricated from metal using the computer numerical control (CNC) machining process.
Yi Zhang   +5 more
doaj   +1 more source

Twistronics: Manipulating the electronic properties of two-dimensional layered structures through their twist angle [PDF]

open access: yes, 2016
The ability in experiments to control the relative twist angle between successive layers in two-dimensional (2D) materials offers an approach to manipulating their electronic properties; we refer to this approach as ``twistronics.'' A major challenge to ...
S. Carr   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy