scholarly journals THE 19/2- g-FACTOR IN 39K USING A TRANSIENT FIELD-FUSION REACTION TECHNIQUE

2020 ◽  
Vol 2 ◽  
pp. 333
Author(s):  
A. Pakou ◽  
F. Brandolini ◽  
D. Bazzacco ◽  
P. Pavan ◽  
C. Rossi-Alvarez ◽  
...  
Keyword(s):  
Shell Model ◽  
Magnetic Moment ◽  
Fusion Reaction ◽  
Recoil Nucleus ◽  
The State ◽  
Experimental Result ◽  
Transient Field ◽  
G Factor ◽  
Internal Calibration ◽  
Model Predictions

The magnetic moment of the 19/2- state in 39K has been measured by the transient field technique. The state was excited by the inverse reaction 12C(32S,pa)39K and the recoil nucleus traversed a thin Gd foil. Its absolute g-factor, g= 0.35(3), was obtained by an internal calibration, which makes use of the magnetic moment of the 15/2+ state in 41Ca also excited in the same reaction. The experimental result agrees well within shell model predictions.

scholarly journals A Sign of Things to Come: Predicting the Perception of Above-the-Fold Time in Web Browsing

2021 ◽  
Vol 13 (2) ◽  
pp. 50
Author(s):  
Hamed Z. Jahromi ◽  
Declan Delaney ◽  
Andrew Hines
Keyword(s):  
Web Application ◽  
Web Applications ◽  
State Of The Art ◽  
Influencing Factor ◽  
The State ◽  
Experimental Result ◽  
Web Page ◽  
To Come ◽  
Web Quality ◽  
The Web

Content is a key influencing factor in Web Quality of Experience (QoE) estimation. A web user’s satisfaction can be influenced by how long it takes to render and visualize the visible parts of the web page in the browser. This is referred to as the Above-the-fold (ATF) time. SpeedIndex (SI) has been widely used to estimate perceived web page loading speed of ATF content and a proxy metric for Web QoE estimation. Web application developers have been actively introducing innovative interactive features, such as animated and multimedia content, aiming to capture the users’ attention and improve the functionality and utility of the web applications. However, the literature shows that, for the websites with animated content, the estimated ATF time using the state-of-the-art metrics may not accurately match completed ATF time as perceived by users. This study introduces a new metric, Plausibly Complete Time (PCT), that estimates ATF time for a user’s perception of websites with and without animations. PCT can be integrated with SI and web QoE models. The accuracy of the proposed metric is evaluated based on two publicly available datasets. The proposed metric holds a high positive Spearman’s correlation (rs=0.89) with the Perceived ATF reported by the users for websites with and without animated content. This study demonstrates that using PCT as a KPI in QoE estimation models can improve the robustness of QoE estimation in comparison to using the state-of-the-art ATF time metric. Furthermore, experimental result showed that the estimation of SI using PCT improves the robustness of SI for websites with animated content. The PCT estimation allows web application designers to identify where poor design has significantly increased ATF time and refactor their implementation before it impacts end-user experience.

Hyperfine structure in highly ionized 13C atoms and the magnetic moment of the state at 3.85 MeV

1974 ◽  
Vol 230 (1) ◽  
pp. 141-152 ◽  
Author(s):  
J.R. Beene ◽  
J. Asher ◽  
N.Ayres De Campos ◽  
R.D. Gill ◽  
M.A. Grace ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Moment ◽  
The State

Shell closure effects in the stable74–82Se isotopes from magnetic moment measurements using projectile excitation and the transient field technique

1998 ◽  
Vol 57 (5) ◽  
pp. 2181-2188 ◽  
Author(s):  
K.-H. Speidel ◽  
N. Benczer-Koller ◽  
G. Kumbartzki ◽  
C. Barton ◽  
A. Gelberg ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Shell Closure ◽  
Transient Field ◽  
Field Technique

An Improved Dijkstras Algorithm Based on Search Strategy

2013 ◽  
Vol 380-384 ◽  
pp. 1625-1628
Author(s):  
Yi Zhen Huang ◽  
Qing Ming Yi ◽  
Min Shi
Keyword(s):  
State Space ◽  
Shortest Path ◽  
Search Strategy ◽  
Computation Time ◽  
The State ◽  
Experimental Result ◽  
Search Efficiency ◽  
Shortest Path Algorithm ◽  
Constraint Function ◽  
Conventional Algorithm

An improved Dijkstras shortest path algorithm based on search strategy is proposed in this paper. In order to solve the defects of the conventional algorithm, such as large redundancy of space and time, the proposed algorithm introduces a constraint function with weighted valueωfor searching each position in the state space to guide the search forward to expected direction. Meanwhile, according to different complexity of map information, the weighted valueωcan be flexibly changed to make the constraint function more reasonable to effectively improve the search efficiency. Experimental result shows that the number of nodes on search path and computation time is obviously reduced, and the improved algorithm can be fast to search out the goal nodes.

19/2−gfactor inK39using a transient field-fusion reaction technique

1992 ◽  
Vol 45 (1) ◽  
pp. 166-173 ◽  
Author(s):  
A. A. Pakou ◽  
F. Brandolini ◽  
D. Bazzacco ◽  
P. Pavan ◽  
C. Rossi-Alvarez ◽  
...  
Keyword(s):  
Fusion Reaction ◽  
Transient Field

Spectroscopic Study of 32S Through the 31P(d,n)32S Reaction

1974 ◽  
Vol 52 (14) ◽  
pp. 1288-1294 ◽  
Author(s):  
A. H. Hussein ◽  
G. C. Neilson ◽  
W. J. McDonald ◽  
W. K. Dawson
Keyword(s):  
Spectroscopic Study ◽  
Shell Model ◽  
Cross Sections ◽  
Differential Cross ◽  
Time Of Flight ◽  
Angular Distributions ◽  
Absolute Differential ◽  
Spectroscopic Factors ◽  
Model Predictions ◽  
Theoretical Predictions

The 31P(d,n)32S reaction has been studied at deuteron energies of 4.0 and 5.45 MeV. Neutron energies were measured by time of flight. Absolute differential cross sections of seven levels in 32S have been measured and compared with the theoretical predictions of both the DWBA and compound statistical theories. Analysis of the angular distributions yielded lP values and absolute spectroscopic factors. These results have been compared with those from other experiments and shell model predictions.

Nuclear Magnetic Moment andj−jCoupling Shell Model

1952 ◽  
Vol 86 (6) ◽  
pp. 1055-1055 ◽  
Author(s):  
Masataka Mizushima ◽  
Minoru Umezawa
Keyword(s):  
Shell Model ◽  
Magnetic Moment ◽  
Nuclear Magnetic Moment ◽  
Nuclear Magnetic

STUDIES IN THE DECAY OF THE ACTIVE DEPOSIT OF ACTINIUM: I. ALPHA–GAMMA ANGULAR CORRELATION IN THE DECAY OF Bi211 (AcC)

1964 ◽  
Vol 42 (9) ◽  
pp. 1798-1812 ◽  
Author(s):  
C. R. Cothern ◽  
R. D. Connor
Keyword(s):  
Shell Model ◽  
Angular Correlation ◽  
Angular Momenta ◽  
Mixing Parameters ◽  
Isotropic Distribution ◽  
Model Predictions ◽  
Γ Ray ◽  
Polarization Correlation ◽  
Do So ◽  
Isotropy Condition

The α–γ angular correlation of the cascade Bi211(α, 6.27 MeV)Tl207*(γ, 350 keV)Tl207 has been found to be isotropic to within [Formula: see text].Accepting the spin and parity of the ground state of Tl207as 1/2+, a search was made for all reasonable spins and angular momenta, pure and mixed, which could yield an isotropic correlation. Shell-model predictions and other situations have been examined. No case of unmixed α-, unmixed γ-angular momenta satisfies the isotropy condition. Many other cases are found which do so, but only with the spin and parity of the excited state of Tl207 taken as 3/2+. It has been shown that 5/2+ does not yield an isotropic correlation. With one radiation mixed and the other pure, there are eight possible combinations which fit the observations. With both radiations mixed, there is an infinity of combinations of the two mixing parameters which lead to an isotropic distribution. The αk value of the 350-keV transition (0.175 ± 0.017) shows the γ ray in question to be 76% M1 and 24% E2. The present work is consistent with only one of the two possibilities given by Gorodetzky et al. (1962) from polarization–correlation work. Accepting this additional evidence it would appear that the most plausible interpretation is that of shell-model spins and parities with both radiations mixed, α—(λ = 3, 5), γ—(76% M1, 24% E2).

Shell-model predictions for electromagnetic properties ofN=50nuclei

1988 ◽  
Vol 38 (6) ◽  
pp. 2849-2859 ◽  
Author(s):  
Xiangdong Ji ◽  
B. H. Wildenthal
Keyword(s):  
Shell Model ◽  
Electromagnetic Properties ◽  
Model Predictions
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