---
_id: '9149'
abstract:
- lang: eng
text: "The interaction of tidal currents with sea-floor topography results in the
radiation of internal gravity waves into the ocean interior. These waves are called
internal tides and their dissipation due to nonlinear wave breaking and concomitant
three-dimensional turbulence could play an important role in the mixing of the
abyssal ocean, and hence in controlling the large-scale ocean circulation.\r\nAs
part of on-going work aimed at providing a theory for the vertical distribution
of wave breaking over sea-floor topography, in this paper we investigate the instability
of internal tides in a very simple linear model that helps us to relate the formation
of unstable regions to simple features in the sea-floor topography. For two-dimensional
tides over one-dimensional topography we find that the formation of overturning
instabilities is closely linked to the singularities in the topography shape and
that it is possible to have stable waves at the sea floor and unstable waves in
the ocean interior above.\r\nFor three-dimensional tides over two-dimensional
topography there is in addition an effect of geometric focusing of wave energy
into localized regions of high wave amplitude, and we investigate this focusing
effect in simple examples. Overall, we find that the distribution of unstable
wave breaking regions can be highly non-uniform even for very simple idealized
topography shapes."
article_processing_charge: No
article_type: original
author:
- first_name: Oliver
full_name: Bühler, Oliver
last_name: Bühler
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
citation:
ama: Bühler O, Muller CJ. Instability and focusing of internal tides in the deep
ocean. Journal of Fluid Mechanics. 2007;588:1-28. doi:10.1017/s0022112007007410
apa: Bühler, O., & Muller, C. J. (2007). Instability and focusing of internal
tides in the deep ocean. Journal of Fluid Mechanics. Cambridge University
Press. https://doi.org/10.1017/s0022112007007410
chicago: Bühler, Oliver, and Caroline J Muller. “Instability and Focusing of Internal
Tides in the Deep Ocean.” Journal of Fluid Mechanics. Cambridge University
Press, 2007. https://doi.org/10.1017/s0022112007007410.
ieee: O. Bühler and C. J. Muller, “Instability and focusing of internal tides in
the deep ocean,” Journal of Fluid Mechanics, vol. 588. Cambridge University
Press, pp. 1–28, 2007.
ista: Bühler O, Muller CJ. 2007. Instability and focusing of internal tides in the
deep ocean. Journal of Fluid Mechanics. 588, 1–28.
mla: Bühler, Oliver, and Caroline J. Muller. “Instability and Focusing of Internal
Tides in the Deep Ocean.” Journal of Fluid Mechanics, vol. 588, Cambridge
University Press, 2007, pp. 1–28, doi:10.1017/s0022112007007410.
short: O. Bühler, C.J. Muller, Journal of Fluid Mechanics 588 (2007) 1–28.
date_created: 2021-02-15T14:41:45Z
date_published: 2007-10-10T00:00:00Z
date_updated: 2022-01-24T13:43:36Z
day: '10'
doi: 10.1017/s0022112007007410
extern: '1'
intvolume: ' 588'
keyword:
- mechanical engineering
- mechanics of materials
- condensed matter physics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/S0022112007007410
month: '10'
oa: 1
oa_version: None
page: 1-28
publication: Journal of Fluid Mechanics
publication_identifier:
issn:
- 0022-1120
- 1469-7645
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
status: public
title: Instability and focusing of internal tides in the deep ocean
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 588
year: '2007'
...
---
_id: '8490'
abstract:
- lang: eng
text: We demonstrate the feasibility of recording 1H–15N correlation spectra of
proteins in only one second of acquisition time. The experiment combines recently
proposed SOFAST-HMQC with Hadamard-type 15N frequency encoding. This allows site-resolved
real-time NMR studies of kinetic processes in proteins with an increased time
resolution. The sensitivity of the experiment is sufficient to be applicable to
a wide range of molecular systems available at millimolar concentration on a high
magnetic field spectrometer.
article_processing_charge: No
article_type: original
author:
- first_name: Paul
full_name: Schanda, Paul
id: 7B541462-FAF6-11E9-A490-E8DFE5697425
last_name: Schanda
orcid: 0000-0002-9350-7606
- first_name: Bernhard
full_name: Brutscher, Bernhard
last_name: Brutscher
citation:
ama: Schanda P, Brutscher B. Hadamard frequency-encoded SOFAST-HMQC for ultrafast
two-dimensional protein NMR. Journal of Magnetic Resonance. 2006;178(2):334-339.
doi:10.1016/j.jmr.2005.10.007
apa: Schanda, P., & Brutscher, B. (2006). Hadamard frequency-encoded SOFAST-HMQC
for ultrafast two-dimensional protein NMR. Journal of Magnetic Resonance.
Elsevier. https://doi.org/10.1016/j.jmr.2005.10.007
chicago: Schanda, Paul, and Bernhard Brutscher. “Hadamard Frequency-Encoded SOFAST-HMQC
for Ultrafast Two-Dimensional Protein NMR.” Journal of Magnetic Resonance.
Elsevier, 2006. https://doi.org/10.1016/j.jmr.2005.10.007.
ieee: P. Schanda and B. Brutscher, “Hadamard frequency-encoded SOFAST-HMQC for ultrafast
two-dimensional protein NMR,” Journal of Magnetic Resonance, vol. 178,
no. 2. Elsevier, pp. 334–339, 2006.
ista: Schanda P, Brutscher B. 2006. Hadamard frequency-encoded SOFAST-HMQC for ultrafast
two-dimensional protein NMR. Journal of Magnetic Resonance. 178(2), 334–339.
mla: Schanda, Paul, and Bernhard Brutscher. “Hadamard Frequency-Encoded SOFAST-HMQC
for Ultrafast Two-Dimensional Protein NMR.” Journal of Magnetic Resonance,
vol. 178, no. 2, Elsevier, 2006, pp. 334–39, doi:10.1016/j.jmr.2005.10.007.
short: P. Schanda, B. Brutscher, Journal of Magnetic Resonance 178 (2006) 334–339.
date_created: 2020-09-18T10:13:51Z
date_published: 2006-02-01T00:00:00Z
date_updated: 2021-01-12T08:19:38Z
day: '01'
doi: 10.1016/j.jmr.2005.10.007
extern: '1'
intvolume: ' 178'
issue: '2'
keyword:
- Nuclear and High Energy Physics
- Biophysics
- Biochemistry
- Condensed Matter Physics
language:
- iso: eng
month: '02'
oa_version: None
page: 334-339
publication: Journal of Magnetic Resonance
publication_identifier:
issn:
- 1090-7807
publication_status: published
publisher: Elsevier
status: public
title: Hadamard frequency-encoded SOFAST-HMQC for ultrafast two-dimensional protein
NMR
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 178
year: '2006'
...
---
_id: '13432'
abstract:
- lang: eng
text: A new experimental technique is described that uses reaction−diffusion phenomena
as a means of one-step microfabrication of complex, multilevel surface reliefs.
Thin films of dry gelatin doped with potassium hexacyanoferrate are chemically
micropatterned with a solution of silver nitrate delivered from an agarose stamp.
Precipitation reaction between the two salts causes the surface to deform. The
mechanism of surface deformation is shown to involve a sequence of reactions,
diffusion, and gel swelling/contraction. This mechanism is established experimentally
and provides a basis of a theoretical lattice-gas model that allows prediction
surface topographies emerging from arbitrary geometries of the stamped features.
The usefulness of the technique is demonstrated by using it to rapidly prepare
two types of mold for passive microfluidic mixers.
article_processing_charge: No
article_type: original
author:
- first_name: Christopher J.
full_name: Campbell, Christopher J.
last_name: Campbell
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Marcin
full_name: Fialkowski, Marcin
last_name: Fialkowski
- first_name: Bartosz A.
full_name: Grzybowski, Bartosz A.
last_name: Grzybowski
citation:
ama: Campbell CJ, Klajn R, Fialkowski M, Grzybowski BA. One-step multilevel microfabrication
by reaction−diffusion. Langmuir. 2005;21(1):418-423. doi:10.1021/la0487747
apa: Campbell, C. J., Klajn, R., Fialkowski, M., & Grzybowski, B. A. (2005).
One-step multilevel microfabrication by reaction−diffusion. Langmuir. American
Chemical Society. https://doi.org/10.1021/la0487747
chicago: Campbell, Christopher J., Rafal Klajn, Marcin Fialkowski, and Bartosz A.
Grzybowski. “One-Step Multilevel Microfabrication by Reaction−diffusion.” Langmuir.
American Chemical Society, 2005. https://doi.org/10.1021/la0487747.
ieee: C. J. Campbell, R. Klajn, M. Fialkowski, and B. A. Grzybowski, “One-step multilevel
microfabrication by reaction−diffusion,” Langmuir, vol. 21, no. 1. American
Chemical Society, pp. 418–423, 2005.
ista: Campbell CJ, Klajn R, Fialkowski M, Grzybowski BA. 2005. One-step multilevel
microfabrication by reaction−diffusion. Langmuir. 21(1), 418–423.
mla: Campbell, Christopher J., et al. “One-Step Multilevel Microfabrication by Reaction−diffusion.”
Langmuir, vol. 21, no. 1, American Chemical Society, 2005, pp. 418–23,
doi:10.1021/la0487747.
short: C.J. Campbell, R. Klajn, M. Fialkowski, B.A. Grzybowski, Langmuir 21 (2005)
418–423.
date_created: 2023-08-01T10:38:29Z
date_published: 2005-01-21T00:00:00Z
date_updated: 2023-08-08T12:15:48Z
day: '21'
doi: 10.1021/la0487747
extern: '1'
external_id:
pmid:
- '15620333'
intvolume: ' 21'
issue: '1'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
month: '01'
oa_version: None
page: 418-423
pmid: 1
publication: Langmuir
publication_identifier:
eissn:
- 1520-5827
issn:
- 0743-7463
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: One-step multilevel microfabrication by reaction−diffusion
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2005'
...
---
_id: '13435'
abstract:
- lang: eng
text: Micropatterning of surfaces with several chemicals at different spatial locations
usually requires multiple stamping and registration steps. Here, we describe an
experimental method based on reaction–diffusion phenomena that allows for simultaneous
micropatterning of a substrate with several coloured chemicals. In this method,
called wet stamping (WETS), aqueous solutions of two or more inorganic salts are
delivered onto a film of dry, ionically doped gelatin from an agarose stamp patterned
in bas relief. Once in conformal contact, these salts diffuse into the gelatin,
where they react to give deeply coloured precipitates. Separation of colours in
the plane of the surface is the consequence of the differences in the diffusion
coefficients, the solubility products, and the amounts of different salts delivered
from the stamp, and is faithfully reproduced by a theoretical model based on a
system of reaction–diffusion partial differential equations. The multicolour micropatterns
are useful as non-binary optical elements, and could potentially form the basis
of new applications in microseparations and in controlled delivery.
article_processing_charge: No
article_type: original
author:
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Marcin
full_name: Fialkowski, Marcin
last_name: Fialkowski
- first_name: Igor T.
full_name: Bensemann, Igor T.
last_name: Bensemann
- first_name: Agnieszka
full_name: Bitner, Agnieszka
last_name: Bitner
- first_name: C. J.
full_name: Campbell, C. J.
last_name: Campbell
- first_name: Kyle
full_name: Bishop, Kyle
last_name: Bishop
- first_name: Stoyan
full_name: Smoukov, Stoyan
last_name: Smoukov
- first_name: Bartosz A.
full_name: Grzybowski, Bartosz A.
last_name: Grzybowski
citation:
ama: Klajn R, Fialkowski M, Bensemann IT, et al. Multicolour micropatterning of
thin films of dry gels. Nature Materials. 2004;3:729-735. doi:10.1038/nmat1231
apa: Klajn, R., Fialkowski, M., Bensemann, I. T., Bitner, A., Campbell, C. J., Bishop,
K., … Grzybowski, B. A. (2004). Multicolour micropatterning of thin films of dry
gels. Nature Materials. Springer Nature. https://doi.org/10.1038/nmat1231
chicago: Klajn, Rafal, Marcin Fialkowski, Igor T. Bensemann, Agnieszka Bitner, C.
J. Campbell, Kyle Bishop, Stoyan Smoukov, and Bartosz A. Grzybowski. “Multicolour
Micropatterning of Thin Films of Dry Gels.” Nature Materials. Springer
Nature, 2004. https://doi.org/10.1038/nmat1231.
ieee: R. Klajn et al., “Multicolour micropatterning of thin films of dry
gels,” Nature Materials, vol. 3. Springer Nature, pp. 729–735, 2004.
ista: Klajn R, Fialkowski M, Bensemann IT, Bitner A, Campbell CJ, Bishop K, Smoukov
S, Grzybowski BA. 2004. Multicolour micropatterning of thin films of dry gels.
Nature Materials. 3, 729–735.
mla: Klajn, Rafal, et al. “Multicolour Micropatterning of Thin Films of Dry Gels.”
Nature Materials, vol. 3, Springer Nature, 2004, pp. 729–35, doi:10.1038/nmat1231.
short: R. Klajn, M. Fialkowski, I.T. Bensemann, A. Bitner, C.J. Campbell, K. Bishop,
S. Smoukov, B.A. Grzybowski, Nature Materials 3 (2004) 729–735.
date_created: 2023-08-01T10:39:23Z
date_published: 2004-09-19T00:00:00Z
date_updated: 2023-08-08T12:42:51Z
day: '19'
doi: 10.1038/nmat1231
extern: '1'
external_id:
pmid:
- '15378052'
intvolume: ' 3'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
- General Chemistry
language:
- iso: eng
month: '09'
oa_version: None
page: 729-735
pmid: 1
publication: Nature Materials
publication_identifier:
eissn:
- 1476-4660
issn:
- 1476-1122
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multicolour micropatterning of thin films of dry gels
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 3
year: '2004'
...