Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 

Saved Queries

Sign in to use this feature.

Search Filter Reset All

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
Add Subjects Reset
Select Subjects

Journals

remove_circle_outline
remove_circle_outline
remove_circle_outline
Add Journals Reset
Select Journals

Article Types

remove_circle_outline
remove_circle_outline
Add Article Types Reset
Select Article Types

Countries / Regions

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
Add Countries / Regions Reset
Select Countries / Regions
Update Search
share announcement

Search Results (3)

Search Parameters:
Keywords = distorted-wave Born approximation (DWBA)

Order results
Result details
Results per page
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
6 pages, 294 KiB  
Communication
Triple-Differential Cross-Section Calculations for Positron Impact Ionization of Argon
by Radu I. Campeanu, Zsuzsánna Bálint and Ladislau Nagy
Atoms 2025, 13(5), 40; https://doi.org/10.3390/atoms13050040 - 4 May 2025
Cited by 1 | Viewed by 437
Abstract
Triple-differential cross-sections for the positron impact ionization of argon were calculated using a distorted-wave Born approximation (DWBA) convoluted to the experimental uncertainties. In almost all of the cases studied, our results agree well with the positions and heights of the experimental peaks. Full article
►▼ Show Figures

Figure 1

13 pages, 3609 KiB  
Article
Dynamics of Neutron Transfer in the Reaction 3He + 9Be
by Aidos K. Azhibekov, Englik K. Almanbetova, Mikhail A. Naumenko, Kairat O. Mendibayev, Sergey M. Lukyanov, Talgat G. Issatayev, Bakhytzhan A. Urazbekov, Asset M. Kabyshev, Kuralay Dyussebayeva and Timur K. Zholdybayev
Physics 2024, 6(4), 1281-1293; https://doi.org/10.3390/physics6040079 - 21 Nov 2024
Viewed by 1769
Abstract
The paper presents the results of experiments on measuring cross-sections for the neutron transfer channels 9Be(3He, α)8Begs,3.03 in the reaction of the 3He (30 MeV) ions with the 9Be target. To describe the angular distributions, [...] Read more.
The paper presents the results of experiments on measuring cross-sections for the neutron transfer channels 9Be(3He, α)8Begs,3.03 in the reaction of the 3He (30 MeV) ions with the 9Be target. To describe the angular distributions, we use the Distorted Wave Born Approximation (DWBA) applying the FRESCO code. The results of the theoretical analysis are in agreement with the experimental data. In addition, we perform calculations based on the solution of the time-dependent Schrödinger equation (TDSE) for the weakly bound neutron of the 9Be nucleus. The TDSE approach allows us to determine the dynamics of the neutron transfer process and calculate the probabilities for the transfer and removal of the neutron of the 9Be nucleus in the 3He + 9Be reaction. Full article
(This article belongs to the Section Atomic Physics)
►▼ Show Figures

Figure 1

21 pages, 6354 KiB  
Article
Variation of Zooplankton Mean Volume Backscattering Strength from Moored and Mobile ADCP Instruments for Diel Vertical Migration Observation
by Angga Dwinovantyo, Henry M. Manik, Tri Prartono, Susilohadi Susilohadi and Tohru Mukai
Appl. Sci. 2019, 9(9), 1851; https://doi.org/10.3390/app9091851 - 6 May 2019
Cited by 11 | Viewed by 6877
Abstract
Zooplankton can be detected by using acoustic Doppler current profiler (ADCP) instruments through acquiring the mean volume backscattering strength (MVBS) data. However, the precision of the backscattered signal measured by single ADCP measurement has a limitation in the MVBS variation of zooplankton. The [...] Read more.
Zooplankton can be detected by using acoustic Doppler current profiler (ADCP) instruments through acquiring the mean volume backscattering strength (MVBS) data. However, the precision of the backscattered signal measured by single ADCP measurement has a limitation in the MVBS variation of zooplankton. The objectives of this study were to analyze the MVBS and vertical velocity from ADCPs at the same time and location for zooplankton’s daily vertical migration (DVM) observation. Measurements were conducted in Lembeh Strait, North Sulawesi, Indonesia. Instruments used included a moored ADCP 750 kHz and a mobile ADCP 307.2 kHz. High MVBS value was found at 11.5–16 m depths and was identified as the sound scattering layer (SSL). The DVM patterns in the SSL displayed significant differences over time and had good relationships with the diurnal cycle. Theoretical target strength (TS) from the scattering models based on a distorted-wave Born approximation (DWBA) was estimated for Oithona sp. and Paracalanus sp.; the two dominant species found in the observed area. However, ΔMVBS and ΔTS proved that the dominant zooplankton species were not the main scatterers. The strong signal in SSL was instead caused by the schools of various zooplankton species. Full article
(This article belongs to the Special Issue Fishery Acoustics, Applied Sciences and Practical Applications)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying article 1-50 on page 1 of 1.
Back to TopTop