Two-Dimensional correlation method applied to Yb3+ vibronic sideband spectroscopy: Discrimination of fluorescence spectral features arising from different yb3+ binding sites

1995 ◽  
Vol 1 (5) ◽  
pp. 329-339 ◽  
Author(s):  
Cécile Roselli ◽  
Jean-René Burie ◽  
Tony Mattioli ◽  
Alain Boussac
Keyword(s):  
Binding Sites ◽  
Correlation Method ◽  
Spectral Features ◽  
Two Dimensional ◽  
Vibronic Sideband

Two-dimensional gel selection of protein binding sites on DNA

1993 ◽  
Vol 14 (1) ◽  
pp. 259-265 ◽  
Author(s):  
Andrea Boffini ◽  
Pierre Prentki
Keyword(s):  
Protein Binding ◽  
Binding Sites ◽  
Two Dimensional ◽  
Protein Binding Sites ◽  
Selection Of

CESIUM-INDUCED QUANTIZED 2D ELECTRON CHANNEL ON THE InAs(110) SURFACE

1995 ◽  
Vol 02 (06) ◽  
pp. 723-729 ◽  
Author(s):  
V. YU. ARISTOV ◽  
G. LE LAY ◽  
M. GREHK ◽  
V.M. ZHILIN ◽  
A. TALEB-IBRAHIMI ◽  
...  
Keyword(s):  
Electron Emission ◽  
Electronic States ◽  
Photoemission Spectroscopy ◽  
Spectral Features ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Discrete Energy ◽  
Electron Channel ◽  
Self Consistent ◽  
Electron Photoemission

We present the first clear evidence of electron emission arising directly from a quantized two-dimensional electron channel from the InAs (110) surface covered by a few Cs atoms (≈ 0.01 Cs ML). Spectral features observed by photoemission spectroscopy using synchrotron radiation reveal discrete-energy electronic states resulting from quantization in the direction normal to the surface. The electron photoemission originates from the vicinities of [Formula: see text] points in the first and second surface Brillouin zones corresponding to the bottom of the conduction band. These findings are in agreement with self-consistent theoretical energy-level calculations using a jellium-like model.

Two-dimensional cell tracking by FPGA-optical correlation method

2009 ◽  
Author(s):  
Iraís Solís ◽  
M. Torres-Cisneros ◽  
J. G. Aviña-Cervantes ◽  
O. G. Ibarra-Manzano ◽  
O. Debeir ◽  
...  
Keyword(s):  
Cell Tracking ◽  
Correlation Method ◽  
Two Dimensional ◽  
Optical Correlation ◽  
Dimensional Cell

Self-correction method of out-of-plane motions in two-dimensional digital image correlation

2016 ◽  
Vol 232 (9) ◽  
pp. 1672-1676 ◽  
Author(s):  
Wentao Yan ◽  
Feng Lin
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Correlation Method ◽  
Correction Method ◽  
Image Correlation ◽  
Two Dimensional ◽  
Monitoring Method ◽  
Strain Monitoring ◽  
Out Of Plane ◽  
Relationship Of

Strain monitoring is very important in the manufacturing, assembling, installation and servicing processes in both mechanical and civil engineering fields. Two-dimensional digital image correlation is a simple, efficient strain monitoring method, but one major bottleneck is the unacceptable error due to the unavoidable out-of-plane motions of the object in practice. We propose a “self-correction” method: employing the originally extracted strain values in different directions to correct the errors due to out-of-plane motions. It is applicable to many engineering applications with known relationship of strains in different directions. A uniaxial tension test was conducted to demonstrate the effectiveness and practicality of this self-correction method. Compared with other correction methods, this method is not only simpler but also more efficient in correcting errors due to the lens distortion caused by self-heating. Both the experiment and theoretical analyses demonstrate that this self-correction method maintains the high accuracy of the digital image correlation method.

Multiple-Perturbation Two-Dimensional Near-Infrared Correlation Study of Time-Dependent Water Absorption Behavior of Cellulose Affected by Pressure

2013 ◽  
Vol 67 (2) ◽  
pp. 163-170 ◽  
Author(s):  
Hideyuki Shinzawa ◽  
Kimie Awa ◽  
Isao Noda ◽  
Yukihiro Ozaki
Keyword(s):  
Water Absorption ◽  
Packing Density ◽  
Near Infrared ◽  
Correlation Method ◽  
Underlying Mechanism ◽  
Polymer Structure ◽  
Correlation Study ◽  
Time Dependent ◽  
Two Dimensional ◽  
Spectral Changes

Transient water absorption by cellulosic samples manufactured under varying pressure was monitored by near-infrared spectroscopy to explore the absorption behavior affected by the pressure. A substantial level of variation of the spectral features was induced by the water absorption and changes in the pressure. The detail of the spectral changes was analyzed with a multiple-perturbation, two-dimensional (2D) correlation method to determine the underlying mechanism. The 2D correlation spectra indicated that the compression of the cellulose increased the packing density of the samples, preventing the penetration of water. In addition, the compression substantially disintegrated its crystalline structure and eventually resulted in the development of inter- and intrachain hydrogen-bonded structures arising from an interaction between the water and cellulose. Consequently, the cellulose samples essentially underwent an evolutionary change in the polymer structure as well as in the packing density during the compression. This structural change, in turn, led to the seemingly complicated absorption trends, depending on the pressure.

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