T = 1 ISOSPIN EXCITATION SPECTRUM IN 10B

2008 ◽  
Vol 17 (10) ◽  
pp. 2345-2348 ◽  
Author(s):  
MILIVOJ UROIĆ ◽  
DURO MILJANIĆ ◽  
SAŠA BLAGUS ◽  
MLADEN BOGOVAC ◽  
NATKO SKUKAN ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Excitation Spectrum ◽  
Rotational Band ◽  
Moment Of Inertia ◽  
High Moment ◽  
Rotation Band

Isobaric analogues of three states in 10 Be forming a rotational band with high moment of inertia are expected in 10 B and 10 C . This article reports a measurement of excitation spectrum in 10 B obtained through 11 B (3 He ,α)10 B reaction. A T = 1 state is found on 11.3 MeV excitation energy. It is a possible candidate for the 4+ state of the analogue rotation band.

The ν3 vibration–rotation band of DCP and the equilibrium structure of methinophosphide

1982 ◽  
Vol 60 (3) ◽  
pp. 304-306 ◽  
Author(s):  
Jacques Lavigne ◽  
Aldée Cabana
Keyword(s):  
Force Constant ◽  
Rotational Constant ◽  
Equilibrium Structure ◽  
Moment Of Inertia ◽  
Rotation Band ◽  
A Value ◽  
Internuclear Distances ◽  
Vibration Rotation

The ν3 band of D12CP(C—P stretching) has been recorded at a resolution of about 0.03 cm−1. The band centre, ν0, is found to be at 1231.4025(6) cm−1, whereas a force constant calculation had previously given a value of 1216 cm−1. The rotational constant B3 is determined and this allows the calculation of Be since the constants B1 and B2 are already known. Finally, the equilibrium moment of inertia, Ie, of the D12CP molecule is calculated. Since Ie for the H12CP molecule is also known, the equilibrium internuclear distances of methinophosphide may be calculated. One obtains: re (C—H) 1.0666(2) Å, and re(C≡P) 1.54020(3) Å.

Increasing the Moment of Inertia of Crane Rails Torsional

2017 ◽  
Vol 865 ◽  
pp. 188-191
Author(s):  
Kirill Nezdanov ◽  
Igor Garkin ◽  
Nikolay Laskov
Keyword(s):  
Economic Benefits ◽  
Cross Sectional Area ◽  
Moment Of Inertia ◽  
High Moment ◽  
Operating Costs ◽  
Sectional Area ◽  
Cross Sectional ◽  
Moments Of Inertia ◽  
Section Profile ◽  
The Moment

This article is devoted to extreme increase in the moments of inertia of crane rails torsional strongly influence the endurance of crane girders. We investigate increase in moment of inertia of the rail under torsion with increasing thickness of the walls and shelves of thick-walled I-section profile in the square until its transformation into a square profile. It was found that the transformation of the profile of a monolithic solid square increases the moment of inertia of the torsion Jkr, cm4 to 3,1075 times and reaches its extreme. A cross-sectional area remains constant (const). Crane rails with a high moment of inertia for torsion provides significant economic benefits, and significantly reduces the operating costs of the enterprise.

CLUSTERING IN A = 10 NUCLEI

2011 ◽  
Vol 20 (04) ◽  
pp. 759-764 ◽  
Author(s):  
MATKO MILIN
Keyword(s):  
Experimental Evidence ◽  
Rotational Band ◽  
Moment Of Inertia ◽  
Experimental Results ◽  
Isobaric Analogue ◽  
Isobaric Analogue States ◽  
Large Moment

The experimental evidence for existence of cluster and molecular states in 10 Be , 10 B and 10 C is presented in details. For the most studied of the three, 10 Be , a rotational band have recently been firmly identified, with states having rather large moment of inertia. For the isobaric analogue states in 10 B first experimental results have been obtained and presented; some simple predictions for the 10 C nucleus are also given.

scholarly journals A Design Comparison of Castellated Beam for Different Parameters

10.29007/cz65 ◽  
2018 ◽  
Author(s):  
Vimlesh Agrawal ◽  
Darshana Bhatt
Keyword(s):  
Parametric Study ◽  
Weight Ratio ◽  
High Strength ◽  
Moment Of Inertia ◽  
High Moment ◽  
Length Ratio ◽  
Geometric Condition ◽  
Structural Applications ◽  
Castellated Beam ◽  
Design Comparison

Castellated Beams made from steel I Sections are being extensively used in structural applications because it has high moment of inertia and high strength to weight ratio. This paper is concerned with the comparison of castellated beam with solid beam, also carried out for same loading and geometric condition. Parametric study is done by changing various parameters of castellated beam like shape of opening, welded length, ratio of depth of opening to total depth and angle of cut. By comparing castellated beam with solid beam it is concluded that solid beam required higher section.

THE 6He+6He AND α+8He CLUSTER STATES IN 12Be VIA α-INELASTIC SCATTERING

2010 ◽  
Vol 25 (21n23) ◽  
pp. 1858-1861 ◽  
Author(s):  
A. SAITO ◽  
S. SHIMOURA ◽  
T. MINEMURA ◽  
Y. U. MATSUYAMA ◽  
H. BABA ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Inelastic Scattering ◽  
Excited States ◽  
Rotational Band ◽  
Cluster Structure ◽  
Decomposition Analysis ◽  
Incident Beam ◽  
Negative Parity ◽  
Angular Correlations ◽  
Measured Momentum

Cluster structures in the neutron-rich nucleus 12 Be were experimentally investigated via α-inelastic scattering. Excited states in the 12 Be nucleus were populated by a 12 Be (αα') reaction at 60 A MeV in the inverse kinematics, and identified by measuring a 6 He +6 He and α+8 He breakup channels in coincidence. The differential cross section and the angular correlations between the decay particles were obtained for each excitation energy at 10–20 MeV for 6 He +6 He and at 9–19 MeV for α+8 He , respectively, reconstructed by the measured momentum vectors of the two helium isotopes. A multipole decomposition analysis based on the distorted-wave Born approximation was applied for the angular distribution of the inelastic scattering together with the angular correlation between the decay particles with respect to the directions of the incident beam and to the momentum transfer simultaneously. From the decomposed excitation energy spectra for J=0-4, several new excited states were identified. The 0+ excited states were candidates of the band-head of a largely deformed rotational band. The 11.3-MeV 0+ state was found to decay only into the 6 He +6 He channel. This result support the recent theoretical result by the generalized two-center cluster model. Several negative-parity excited states were observed in the α+8 He channel. These excited states possibly forming a negative-parity rotational band, which is very closed to the positive-parity band, can be connected to the existence of the extremely developed cluster structure in 12 Be .

Predicting superdeformed rotational band-head spin in A ∼ 190 mass region using variable moment of inertia model

Pramana ◽  
2015 ◽  
Vol 86 (1) ◽  
pp. 185-190 ◽  
Author(s):  
V S UMA ◽  
AlPANA GOEL ◽  
ARCHANA YADAV ◽  
A K JAIN
Keyword(s):  
Rotational Band ◽  
Mass Region ◽  
Band Head ◽  
Moment Of Inertia ◽  
Inertia Model ◽  
Variable Moment

Two-Degree-of-Freedom Flow-Induced Vibrations of a Circular Cylinder With a High Moment of Inertia Ratio

2010 ◽  
Author(s):  
Sina Kheirkhah ◽  
Serhiy Yarusevych
Keyword(s):  
Damping Ratio ◽  
Moment Of Inertia ◽  
Degree Of Freedom ◽  
High Moment ◽  
Near Wake ◽  
Synchronization Region ◽  
Vortex Induced Vibrations ◽  
Experimental Parameters ◽  
Flow Induced Vibrations ◽  
Two Degree Of Freedom

Two degree-of-freedom vortex-induced vibrations of a moderate mass and high moment of inertia ratio pivoted cylinder were investigated experimentally. The experiments were performed at a constant Reynolds number of 2100 for a range of reduced velocities from 3.4 to 11.25. The results show that, in addition to the reduced velocity, the transverse damping ratio has a significant effect on the amplitudes of response. The cylinder tip is observed to trace orbital trajectories, which is shown to be attributed to the frequencies of oscillations in both directions locking onto the natural frequency in the synchronization region. The results indicate that a phase angle between the streamwise and transverse oscillations governs the direction and orientation of the orbiting motion. Flow visualization results show that, at a given reduced velocity and transverse damping ratio, near-wake development changes along the cylinder span. The observed shedding patterns are shown to differ from those expected at the corresponding experimental parameters for one-degree-of-freedom uniform amplitude cylinder vibrations.

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