Results 251 to 260 of about 2,934,235 (278)

Two-dimensional multiferroics

Nanoscale, 2021
2D multiferroics achieve multiple functions and new mechanisms through magnetoelectric, piezoelectric, and magnetoelastic coupling phenomena, opening up new research avenues.
Yunye Gao, Mingyuan Gao, Yuerui Lu
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Coherent Two-Dimensional Nanoscopy

Science, 2011
Coherent electronic states excited by ultrafast laser pulses were imaged at subwavelength resolution with photoelectrons.
Aeschlimann, M., Brixner, T., Fischer, A., Kramer, C., Melchior, P., Pfeiffer, Walter, Schneider, C., Strüber, Christian, Tuchscherer, P., Voronine, Dmitri   +9 more
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Two‐dimensional crystallization experiments*

Journal of Microscopy, 1986
SUMMARYOur experience in the growth of two‐dimensional crystals of different proteins is presented. Polyethylene glycol was used to produce two‐dimensional arrays of haemocyanin from O. vulgaris and of cholera toxin. The arrays showed a hexagonal close‐packed structure of only randomly oriented molecules.
van Bruggen, Ernst, van Breemen, Jan, Keegstra, Wilko, Boekema, Egbert, van Heel, M.G.   +4 more
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Two-Dimensional Graphene Nanoribbons

Journal of the American Chemical Society, 2008
A new synthetic strategy toward novel linear two-dimensional graphene nanoribbons up to 12 nm has been established. The nanoribbons are characterized by MS, UV/vis, and scanning tunneling microscopy (STM). Various microscopic studies of these novel structures showed a high tendency to self-assemble.
Yang, X., Dou, X., Rouhanipour, A., Zhi, L., Räder, H., Müllen, K.   +5 more
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Two-dimensional schur algorithm

Computer Standards & Interfaces, 1998
A 2-D Schur algorithm for the AR modelling of 2-D fields using appropriately defined quarter-plane prediction error fields is developed. First- and second-quadrant gapped functions at each stage are used to compute the lattice parameter factors. A simple procedure is developed to calculate the 2-D transfer function from the given lattice parameter ...
Kayran, Ahmet H., Küçük, Ünal, Parker, Sydney R.   +2 more
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Dynamics of two-dimensional and quasi-two-dimensional polymers

The Journal of Chemical Physics, 2013
The dynamic properties of dense two-dimensional (2D) polymer melts are studied using discontinuous molecular dynamics simulations. Both strictly 2D and quasi-2D systems are investigated. The strictly 2D model system consists of a fluid of freely jointed tangent hard disc chains.
Bong June, Sung, Arun, Yethiraj
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Surfaces: Two-Dimensional Templates

2008
Producing nanoscale structures on solid surfaces in a controlled way is a technologicalchallenge that has an important impact on a variety of fields such as microelectronics, magnetic storagetechnology, and heterogeneous catalysis. Currently most processes are based on a top-down approach,which relies on an active patterning of a surface by, for ...
Becker, C., Wandelt, K.
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Two‐dimensional resistivity inversion

GEOPHYSICS, 1984
Resistivity data on a profile often must be interpreted in terms of a complex two‐dimensional (2-D) model. However, trial‐and‐error modeling for such a case can be very difficult and frustrating. To make interpretation easier and more objective, we have developed a nonlinear inversion technique that estimates the resistivities of cells in a 2-D model ...
A. C. Tripp, G. W. Hohmann, C. M. Swift Jr   +2 more
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Two-dimensional wavelet processor

Applied Optics, 1996
An optical implementation of the two-dimensional (2-D) wavelet transform and inverse wavelet transform is performed in real time by the exploitation of a new multichannel system that processes the different daughter wavelets separately. The so-coined wavelet-processor system relies on a multichannel replication array generated that uses a Dammann ...
I, Ouzieli, D, Mendlovic
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Two-Dimensional Transforms

1975
This chapter is designed to provide the reader with an overview of two-dimensional transforms and their uses in digital picture processing by general purpose computers. The notation is selected such that casual familiarity with matrix algebra should be sufficient to grasp the basic principles of image coding and restoration in conjunction with the use ...
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