Human photoplethysmogram through the Morse graph: Searching for the saddle point in experimental data

2019 ◽  
Vol 29 (4) ◽  
pp. 043121
Author(s):  
Tomoyuki Miyaji ◽  
Nina Sviridova ◽  
Kazuyuki Aihara ◽  
Tiejun Zhao ◽  
Akimasa Nakano
Keyword(s):  
Experimental Data ◽  
Saddle Point ◽  
Graph Searching

scholarly journals The Chordwise Lean of Highly Loaded Turbine Blades

1996 ◽  
Author(s):  
Zhongqi Wang ◽  
Wanjin Han
Keyword(s):  
Experimental Data ◽  
Experimental Investigation ◽  
Saddle Point ◽  
Turbine Blades ◽  
Acute Angle ◽  
Secondary Vortex ◽  
Pressure Gradients ◽  
Turbine Cascades ◽  
Highly Loaded

An experimental investigation was carried out on the effect of blade chordwise lean on the losses in highly loaded rectangular turbine cascades. Detail measurements include 10 traverses from the upstream to the downstream of the cascades with five-hole spherical probes. Compared with the experimental data of the conventional straight and pitchwise lean blades under the same conditions, it is shown that the effect of chordwise lean on the development of the cascade losses is similar to that of pitchwise lean. However, the chordwise lean produces smaller streamwise adverse pressure gradients near both endwalls and a smaller spanwise negative one starting from the acute angle side in the first part of the passages in chordwise lean cascade, thereby the saddle point separations and intensities of the passage vortices are weakened and the secondary vortex losses are cut down notably.

Study of potential curves by UHF type methods. Inversion and dissociation of NH3 molecule

1984 ◽  
Vol 49 (8) ◽  
pp. 1731-1735 ◽  
Author(s):  
Viliam Klimo ◽  
Jozef Tiňo
Keyword(s):  
Experimental Data ◽  
Saddle Point ◽  
Basis Set ◽  
Inversion Barrier ◽  
Exact Methods ◽  
Energy Parameters ◽  
Dissociation Energies ◽  
Bond Functions ◽  
Potential Curves ◽  
Good Agreement

Geometry and energy parameters of individual dissociation intermediate steps of the NH3 molecule, geometry of the saddle point, and the inversion barrier of NH3 have been calculated by the UMP2 method in the minimum basis set augmented with the bond functions. A good agreement has been reached with experimental data and with results of more exact methods except for the dissociation energies of the NH3 and NH2 molecules. New values of heats of formation are suggested on the basis of these results: ΔHfo0 = 197 and 362 kJ/mol for the NH2 and NH molecules, respectively.

CALCULATION OF FISSION FRAGMENT ANGULAR ANISOTROPY IN HEAVY-ION INDUCED FISSION

2008 ◽  
Vol 17 (02) ◽  
pp. 425-433 ◽  
Author(s):  
S. SOHEYLI ◽  
H. NOSHAD ◽  
I. ZIAIAN
Keyword(s):  
Experimental Data ◽  
Statistical Model ◽  
Saddle Point ◽  
Fission Fragment ◽  
Neutron Emission ◽  
Heavy Ion ◽  
Angular Anisotropy ◽  
Induced Fission

Fission fragment angular anisotropies from 16 O + 232 Th , 12 C + 236 U , 11 B + 237 Np , 14 N + 232 Th , 11 B + 235 U and 12 C + 232 Th systems were calculated by means of the standard saddle point statistical model (SSPSM). The results were obtained with and without neutron emission correction in the reactions, and comparisons were made with the corresponding experimental data. The normal and anomalous behaviors of fission fragment anisotropies are extensively discussed.

II.—Spontaneous Fission Rates and the Role of the “Excess” Neutrons in Heavy Nuclei

1962 ◽  
Vol 66 (1) ◽  
pp. 20-32
Author(s):  
N. Feather
Keyword(s):  
Experimental Data ◽  
Saddle Point ◽  
Spontaneous Fission ◽  
Binding Energies ◽  
Nucleon Pair ◽  
Heavy Nuclei ◽  
Significant Parameter ◽  
Empirical Regularities

SynopsisEmpirical regularities are sought amongst the experimental data relative to the spontaneous fission rates and the nucleon-pair binding energies of the heavy even-even nuclei. Certain regularities are found which have not hitherto been noted; in particular it appears that the isotopic number D is a significant parameter in relation to these various quantities. The speculation is made that possibly the saddle-point deformation of the protons in the nucleus is greater than that of the neutrons. Predictions are made concerning the spontaneous fission rates of the even-even isotopes of thorium.

CALCULATIONS OF FUSION-EVAPORATION CROSS SECTIONS IN THE 48Ca + 206Pband48Ca + 208Pb REACTIONS

2006 ◽  
Vol 15 (02) ◽  
pp. 405-409 ◽  
Author(s):  
K. SIWEK-WILCZYŃSKA ◽  
I. SKWIRA-CHALOT ◽  
J. WILCZYŃSKI
Keyword(s):  
Experimental Data ◽  
Saddle Point ◽  
Cross Sections ◽  
Point Configuration ◽  
Level Densities ◽  
Point Configurations

By using a unique set of experimental data on (1n, 2n, 3n and 4n) fusion-evaporation cross sections for 48 Ca + 206 Pb and 48 Ca + 208 Pb reactions, measured by Oganessian et al., we have tested the conventional Bohr-Wheeler description of the competition between evaporation and fission in these reactions. Level densities in both, the equilibrium and saddle-point configurations were calculated using the Reisdorf-Ignatyuk prescription. Strutinsky shell corrections of Möller et al. were used for the equilibrium, and zero shell corrections were assumed for the saddle-point configuration. The model does not contain adjustable parameters.

Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

1982 ◽  
Vol 40 ◽  
pp. 668-669
Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña
Keyword(s):  
Experimental Data ◽  
Electron Diffraction ◽  
Theoretical Analysis ◽  
Size Range ◽  
Dynamical Theory ◽  
Metallic Particles ◽  
Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

Evidence for ordered Fe3Ni

1987 ◽  
Vol 45 ◽  
pp. 216-217
Author(s):  
K.B. Reuter ◽  
D.B. Williams ◽  
J.I. Goldstein
Keyword(s):  
Experimental Data ◽  
Martensitic Transformation ◽  
Electron Diffraction ◽  
Room Temperature ◽  
Direct Evidence ◽  
Transformation Product ◽  
Iron Meteorites ◽  
X Ray ◽  
Ni Content ◽  
Temperature Transformation

In the Fe-Ni system, although ordered FeNi and ordered Ni3Fe are experimentally well established, direct evidence for ordered Fe3Ni is unconvincing. Little experimental data for Fe3Ni exists because diffusion is sluggish at temperatures below 400°C and because alloys containing less than 29 wt% Ni undergo a martensitic transformation at room temperature. Fe-Ni phases in iron meteorites were examined in this study because iron meteorites have cooled at slow rates of about 10°C/106 years, allowing phase transformations below 400°C to occur. One low temperature transformation product, called clear taenite 2 (CT2), was of particular interest because it contains less than 30 wtZ Ni and is not martensitic. Because CT2 is only a few microns in size, the structure and Ni content were determined through electron diffraction and x-ray microanalysis. A Philips EM400T operated at 120 kV, equipped with a Tracor Northern 2000 multichannel analyzer, was used.

EELS white line intensities calculated for the 3d and 4d metals

1989 ◽  
Vol 47 ◽  
pp. 388-389
Author(s):  
C. C. Ahn ◽  
D. H. Pearson ◽  
P. Rez ◽  
B. Fultz
Keyword(s):  
Experimental Data ◽  
Line Intensity ◽  
Transition Probabilities ◽  
Initial Increase ◽  
White Line ◽  
Hartree Fock ◽  
Line Intensities ◽  
Integrated Intensity ◽  
X Ray Absorption ◽  
The Continuum

Previous experimental measurements of the total white line intensities from L2,3 energy loss spectra of 3d transition metals reported a linear dependence of the white line intensity on 3d occupancy. These results are inconsistent, however, with behavior inferred from relativistic one electron Dirac-Fock calculations, which show an initial increase followed by a decrease of total white line intensity across the 3d series. This inconsistency with experimental data is especially puzzling in light of work by Thole, et al., which successfully calculates x-ray absorption spectra of the lanthanide M4,5 white lines by employing a less rigorous Hartree-Fock calculation with relativistic corrections based on the work of Cowan. When restricted to transitions allowed by dipole selection rules, the calculated spectra of the lanthanide M4,5 white lines show a decreasing intensity as a function of Z that was consistent with the available experimental data.Here we report the results of Dirac-Fock calculations of the L2,3 white lines of the 3d and 4d elements, and compare the results to the experimental work of Pearson et al. In a previous study, similar calculations helped to account for the non-statistical behavior of L3/L2 ratios of the 3d metals. We assumed that all metals had a single 4s electron. Because these calculations provide absolute transition probabilities, to compare the calculated white line intensities to the experimental data, we normalized the calculated intensities to the intensity of the continuum above the L3 edges. The continuum intensity was obtained by Hartree-Slater calculations, and the normalization factor for the white line intensities was the integrated intensity in an energy window of fixed width and position above the L3 edge of each element.

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