Probability of passing through a parabolic barrier and thermal decay rate: Case of linear coupling both in momentum and in coordinate

2011 ◽  
Vol 84 (3) ◽  
Author(s):  
R. A. Kuzyakin ◽  
V. V. Sargsyan ◽  
G. G. Adamian ◽  
N. V. Antonenko
Keyword(s):  
Decay Rate ◽  
Thermal Decay ◽  
Linear Coupling ◽  
Rate Case

scholarly journals Two ways for finding the thermal decay rate at weak friction

2019 ◽  
Vol 1260 ◽  
pp. 092001
Author(s):  
M V Chushnyakova ◽  
I I Gontchar ◽  
A I Blesman
Keyword(s):  
Decay Rate ◽  
Thermal Decay

scholarly journals Remotely sensed thermal decay rate: an index for vegetation monitoring

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
S. S. Kumar ◽  
L. Prihodko ◽  
B. M. Lind ◽  
J. Anchang ◽  
W. Ji ◽  
...  
Keyword(s):  
Decay Rate ◽  
Remotely Sensed ◽  
Thermal Decay ◽  
Vegetation Monitoring

Dynamic Coercivity and Thermal Decay of Magnetic Media

1998 ◽  
Vol 517 ◽  
Author(s):  
Kurt Rubin ◽  
Jason Goldberg ◽  
Hal Rosen ◽  
Ernesto Marinero ◽  
Mary Doemer ◽  
...  
Keyword(s):  
Time Dependence ◽  
Decay Rate ◽  
Experimental Technique ◽  
Linear Density ◽  
Magnetic Media ◽  
Magnetic Transitions ◽  
Thermal Decay ◽  
Thermally Induced ◽  
The Media ◽  
Short Times

AbstractThermally induced decay of longitudinally recorded magnetic transitions is measured on a spin-stand. The decay rate increases with increased linear density and decreases with increased media coercivity. A new spin-stand experimental technique has been developed which allows measurements of the time dependence of the media coercivity as a function of write times spanning short times characteristic of write times in drives to long times associated with VSM measurements. The ratio of long to short write time coercivity was larger for media which are thermally unstable.

Photochromism of spiroindolinonaphthoxazine. I. Photophysical properties

1983 ◽  
Vol 61 (2) ◽  
pp. 300-305 ◽  
Author(s):  
Nori Y. C. Chu
Keyword(s):  
Decay Rate ◽  
Photophysical Properties ◽  
Ultraviolet Region ◽  
Colored Form ◽  
Thermal Decay ◽  
Triplet Energy ◽  
Absorption Bands ◽  
Different Temperatures ◽  
Transfer Method ◽  
Triplet Energy Transfer

A solution of spiroindolinonaphthoxazine in a common organic solvent shows profound photochromic effect. The colorless form in ethanol displays three absorption bands (~320, 235, 203 nm) in the ultraviolet region of the spectrum. The absorption spectrum of the colored metastable form shows two prominent absorption peaks at 612 and 578 nm. The triplet state energy level of the colorless form is estimated to be in the range from 2.4 × 104 to 2.1 × 104 cm−1 by the triplet–triplet energy transfer method. There exists a thermal equilibrium between the colorless and colored forms. From the measurement of absorbance of the colored form at different temperatures, the standard enthalpy of equilibrium is obtained (ΔH0 = 1500 cm−1). The thermal decay of the colored form to the colorless form depends strongly on temperature. The decay rate increases three times for every 10 °C increase in temperature. From these temperature dependence studies of the thermal decay rate, the thermal energy barrier for the colored metastable state to decay to the colorless form is determined to be 6.9 × 103 cm−1.

Systematic variation of thiophene substituents in photochromic spiropyrans

2017 ◽  
Vol 16 (7) ◽  
pp. 1057-1062
Author(s):  
Dushanthi S. Dissanayake ◽  
Gregory T. McCandless ◽  
Mihaela C. Stefan ◽  
Michael C. Biewer
Keyword(s):  
Decay Rate ◽  
Half Life ◽  
Reverse Reaction ◽  
Systematic Variation ◽  
Synthetic Method ◽  
Thermal Decay

A new synthetic method was developed to incorporate spiropyran into thiophene based materials via a conjugated pathway. As the number of thiophene units increased, the thermal decay rate of the reverse reaction decreased in methanol, thus increasing the half-life of merocyanine.

Peculiarities of parabolic-barrier penetrability and thermal decay rate with the quantum diffusion approach

2011 ◽  
Vol 83 (6) ◽  
Author(s):  
R. A. Kuzyakin ◽  
V. V. Sargsyan ◽  
G. G. Adamian ◽  
N. V. Antonenko
Keyword(s):  
Decay Rate ◽  
Quantum Diffusion ◽  
Thermal Decay

Linear coupling of electromagnetic waves in inhomogeneous weakly-ionized media

1983 ◽  
Vol 141 (10) ◽  
pp. 257 ◽  
Author(s):  
V.V. Zheleznyakov ◽  
Vit V. Kocharovskii ◽  
Vlad V. Kocharovskii
Keyword(s):  
Electromagnetic Waves ◽  
Linear Coupling ◽  
Weakly Ionized

Noise Characteristics and Thermal Decay in Single-layer Perpendicular Recording Media

1998 ◽  
Vol 22 (S_3_PMRS_98) ◽  
pp. S3_5-8
Author(s):  
Y. Hirayama ◽  
Y. Honda ◽  
K. Ito ◽  
T. Takeuchi ◽  
M. Futamoto
Keyword(s):  
Single Layer ◽  
Recording Media ◽  
Thermal Decay ◽  
Perpendicular Recording ◽  
Noise Characteristics
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