scholarly journals What we can learn from ?????,K $$\bar K$$ in the resonance region

1988 ◽  
Vol 39 (4) ◽  
pp. 590-590 ◽  
Author(s):  
D. Morgan ◽  
M. R. Pennington
Keyword(s):  
Resonance Region

STUDIES OF PHOTONUCLEAR REACTIONS AND PHOTON ACTIVATION ANALYSIS IN THE GIANT DIPOLE RESONANCE REGION USING MICROTRONS

2007 ◽  
Vol 14 (1) ◽  
pp. 42 ◽  
Author(s):  
TRAN DUC THIEP ◽  
NGUYEN VAN DO ◽  
NGUYEN KHAC THI ◽  
TRUONG THI AN ◽  
NGUYEN NGOC SON
Keyword(s):  
Activation Analysis ◽  
Giant Dipole Resonance ◽  
Resonance Region ◽  
Photon Activation Analysis ◽  
Photon Flux ◽  
Photon Activation ◽  
Applied Physics ◽  
Dipole Resonance ◽  
Giant Dipole Resonance Region ◽  
Fission Neutrons

Mictrorons are accelerators of electrons and are simultaneous sources of bremsstrahlung photon flux and fission neutrons. In 1982, a microtron of seventeen trajectories Microtron MT - 17 was put into operation at the National Institute of Physics of Vietnam. Though very modest, microtons are very useful for developing countries such as Vietnam in both fundamental and applied physics research. During the recent years by using the above mentioned MT - 17 and microtrons from other institutes we have carried out different investigations. In this report we present some results obtained in the studies of photonuclear reactions and photon activation analysis in the giant dipole resonance region.

scholarly journals Pion electroproduction and VCS at the Δ resonance region

2013 ◽  
Author(s):  
Nikolaos Sparveris
Keyword(s):  
Resonance Region ◽  
Pion Electroproduction

Microscopic study of doorway states in the giant resonance region ofO16

1976 ◽  
Vol 14 (4) ◽  
pp. 1369-1380 ◽  
Author(s):  
H. L. Yadav ◽  
H. V. Geramb
Keyword(s):  
Microscopic Study ◽  
Giant Resonance ◽  
Resonance Region

Helicity dependence of the γ 3He → πX reactions in the Δ(1232) resonance region

2014 ◽  
Vol 50 (11) ◽  
Author(s):  
S. Costanza ◽  
◽  
A. Mushkarenkov ◽  
F. Rigamonti ◽  
M. Romaniuk ◽  
...  
Keyword(s):  
Resonance Region

scholarly journals Quark model study of the πN→πN reactions up to the N(1440) resonance region

2017 ◽  
Vol 95 (5) ◽  
Author(s):  
Kai-Lei Wang ◽  
Li-Ye Xiao ◽  
Xian-Hui Zhong
Keyword(s):  
Quark Model ◽  
Resonance Region ◽  
Model Study

Cross section structure of232Th in the unresolved resonance region

2010 ◽  
Vol 37 (7) ◽  
pp. 075101 ◽  
Author(s):  
N Koyumdjieva ◽  
N Janeva ◽  
A A Lukyanov
Keyword(s):  
Cross Section ◽  
Resonance Region ◽  
Section Structure

Neutron total cross-section measurement of 232Th in the off-resonance region below 300eV

1984 ◽  
Vol 11 (7) ◽  
pp. 315-320 ◽  
Author(s):  
K. Kobayashi ◽  
Y. Fujita ◽  
N. Yamamuro
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Resonance Region ◽  
Cross Section Measurement ◽  
Neutron Total Cross Section ◽  
Section Measurement

Experimental Investigation of Vortex-Induced Vibrations on Yawed and Inclined Flexible Cylinders

2021 ◽  
pp. 1-16
Author(s):  
Daniel P. Vieira ◽  
Guilherme R. Franzini ◽  
Fredi Cenci ◽  
Andre Fujarra
Keyword(s):  
A Priori ◽  
Flexible Structures ◽  
Resonance Region ◽  
Offshore Structures ◽  
Natural Mode ◽  
Flexible Cylinder ◽  
Decomposition Scheme ◽  
Independence Principle ◽  
Modal Amplitude ◽  
Time Histories

Abstract An experimental setup was built to investigate the Vortex-Induced Vibration (VIV) phenomenon on yawed and inclined flexible cylinders, in which five yaw angles θ = 0°, 10°, 20°, 30° and 45° and five azimuth angles ß = 0°, 45°, 90°, 135°, and 180° were combined. The experiments were carried out in a towing tank facility at Reynolds numbers from 1800 to 18000, comprising vibrations up to the eighth natural mode. Time histories of displacements were recorded using a submerged optical system that tracks 17 reflective targets. A modal decomposition scheme based on Galerkin's method was applied, aiming multimodal behavior investigations. Such an approach allowed the analysis of the modal amplitude throughout time, revealing interesting results for such a class of VIV tests. The flexible cylinder total response is generally a combination of two or more modes. Only for azimuths 0°, 90°, and 180°, a unimodal response was observed for the two first lock-in regimes. The frequency response showed that, when the response was multimodal, non-dominant modes can follow the vibration frequency of the dominant one. Assuming a priori the Independence Principle (IP) valid to define the reduced velocities (Vr), it was observed that the resonance region was restricted to 3 <= Vr <= 8 for the tested cases, indicating that the IP can be at least partially applied for flexible structures. As the literature scarcely explores the simultaneous yawed and inclined configurations, the present work may contribute to further code validation and improvements regarding the design of slender offshore structures.

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