A5067653180- Nuclear physics research studies
- Astronomical and nuclear sciences
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Hearing Loss and Rehabilitation
- Hearing Impairment and Communication
- Nuclear reactor physics and engineering
- Phonetics and Phonology Research
- Tactile and Sensory Interactions
- Astro and Planetary Science
- Superconducting Materials and Applications
- High Altitude and Hypoxia
- X-ray Spectroscopy and Fluorescence Analysis
- Traditional Chinese Medicine Studies
- Quantum Chromodynamics and Particle Interactions
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Atmospheric Ozone and Climate
- Cardiovascular and Diving-Related Complications
- Neutrino Physics Research
- Multisensory perception and integration
- Animal Vocal Communication and Behavior
- Obstructive Sleep Apnea Research
- EEG and Brain-Computer Interfaces
- Hand Gesture Recognition Systems
- Eicosanoids and Hypertension Pharmacology
Tianjin University of Technology
2023
Kocaeli Üniversitesi
2017
University of Notre Dame
2011-2016
Joint Institute for Nuclear Astrophysics
2012-2016
Background: The ratio between the rates of reactions ${}^{17}$O${(\ensuremath{\alpha},n)}^{20}$Ne and ${}^{17}$O${(\ensuremath{\alpha},\ensuremath{\gamma})}^{21}$Ne determines whether ${}^{16}$O is an efficient neutron poison for $s$ process in massive stars, or if most neutrons captured by ${}^{16}$O$(n,\ensuremath{\gamma})$ are recycled into stellar environment. This particular relevance to constrain yields fast rotating stars at low metallicity.Purpose: Recent results on...
Background: The CNO cycle is the main energy source in stars more massive than our sun; it defines production and time that lead to lifetime of stars, an important tool for determination age globular clusters. In sun about 1.6% total solar neutrino flux comes from cycle. largest uncertainty prediction this standard model $^{14}\mathrm{N}(p,\ensuremath{\gamma})^{15}\mathrm{O}$ reaction rate; thus, cross section at astrophysical temperatures great interest.Purpose: has large contributions...
The $^{90}\mathrm{Zr}(\ensuremath{\alpha},\ensuremath{\gamma})^{94}\mathrm{Mo},\phantom{\rule{0.16em}{0ex}}^{92}\mathrm{Zr}(\ensuremath{\alpha},\ensuremath{\gamma})^{96}\mathrm{Mo}$, and $^{74}\mathrm{Ge}(\ensuremath{\alpha},\ensuremath{\gamma})^{78}\mathrm{Se}$ reaction cross sections were measured for the first time in an effort to expand existing experimental database $(\ensuremath{\alpha},\ensuremath{\gamma})$ reactions relevant production of $p$ nuclei universe. In particular,...
The reaction $^{17}$O$(p,\gamma)^{18}$F influences hydrogen-burning nucleosynthesis in several stellar sites, such as red giants, asymptotic giant branch (AGB) stars, massive stars and classical novae. In the relevant temperature range for these environments ($T_{9}=0.01-0.4), main contributions to rate of this are direct capture process, two low lying narrow resonances ($E_{r}=65.1$ 183 keV) low-energy tails broad ($E_{r}=557$ 677 keV). Previous measurements calculations give contradictory...
The reaction 17O({\alpha},{\gamma})21Ne has been measured by in-beam gamma spectroscopy for the first time in energy range E{\alpha} = 750 keV to 1650 using highly enriched anodized Ta2(17O)5 targets. Resonances were found at E({\alpha}) 1002 keV, 1386 and 1619 keV. Their strengths primary gamma-ray branchings are given. new results exclude low rate of Descouvemont support Caughlan Fowler. Implications neutron poisoning efficiency 16O weak s process discussed.
Cross section measurements of the reactions ${}^{90,92}$Zr($p$,$\ensuremath{\gamma}$)${}^{91,93}$Nb were performed using National Superconducting Cyclotron Laboratory Summing NaI(Tl) detector at University Notre Dame. These are part nuclear reaction flow for synthesis light $p$ nuclei. For ${}^{90}$Zr($p$,$\ensuremath{\gamma}$)${}^{91}$Nb new measurement resolves disagreement between previous results. ${}^{92}$Zr($p$,$\ensuremath{\gamma}$)${}^{93}$Nb present work reports first this cross...
Cross section measurements of the ${}^{58}\mathrm{Ni(}\ensuremath{\alpha}$,$\ensuremath{\gamma}$)${}^{62}\mathrm{Zn}$ reaction were performed in energy range ${E}_{\ensuremath{\alpha}}=5.5\phantom{\rule{4.pt}{0ex}}\text{to}9.5$ MeV at Nuclear Science Laboratory University Notre Dame, using NSCL Summing NaI(Tl) detector and $\ensuremath{\gamma}$-summing technique. The are compared to predictions statistical Hauser-Feshbach model nuclear reactions SMARAGD code. It is found that dependence...
A systematic study of the radiative proton capture reaction for all stable nickel isotopes is presented. The results were obtained using 2.0 - 6.0 MeV protons from 11 MV tandem Van de Graaff accelerator at University Notre Dame. \gamma-rays detected by NSCL SuN detector utilising \gamma-summing technique. are compared to a compilation earlier measurements and discrepancies between previous data resolved. experimental also theoretical predictions NON-SMOKER SMARAGD codes. Based on these...
Background: The reaction ${}^{18}$O${(\ensuremath{\alpha},n)}^{21}$Ne is a part of the chains leading to production ${}^{19}$F and ${}^{22}$Ne during He burning in low-mass massive AGB stars, respectively. Additionally, it has been observed as strong background source measurement other $(\ensuremath{\alpha},n)$ reactions.Purpose: Previously low-energy cross section data have only available non-peer-reviewed form. An improved this done both clarify its astrophysical influence well provide...
In an effort to investigate the production of ${}^{74}$Se in $p$-process nucleosynthesis, ${}^{74}$Ge($p$,$\ensuremath{\gamma}$)${}^{75}$As reaction cross section was measured relevant energy range ${E}_{p}=1.6$--4.2 MeV. The measurements were carried out using NSCL SuN detector at University Notre Dame. results are good agreement with previous work, extending both lower and higher energies. compared theoretical predictions non-smoker talys nuclear codes. New improved rates offered, these...
It is crucial to measure reaction cross sections relevant the astrophysical $\ensuremath{\gamma}$ process so that theoretical rates can be tested and validated with experimental data. The total for $^{162}\mathrm{Er}(p,\ensuremath{\gamma})^{163}\mathrm{Tm}$ $^{162}\mathrm{Er}(p,n)^{162}\mathrm{Tm}$ reactions have been measured by activation method in center-of-mass energies from 3.973 8.944 MeV 5.962 MeV, respectively. nucleus $^{162}\mathrm{Er}$ heaviest $p$ nuclide using...
The 12C+12C fusion reaction plays a crucial role during stellar evolution. astrophysically important energy range spans from 1 MeV to 3 MeV. However, its cross section has not been determined with enough precision, despite numerous studies, due the extremely low sections and large experimental background. To allow measurements of at astrophysical energies, we developed an efficient thick-target method using large-area silicon strip detectors. Further even lower energies will be performed...
This paper reports on the first cross section measurement of $^{72}\mathrm{Ge}(p,\ensuremath{\gamma})^{73}\mathrm{As}$ reaction. The proton capture reaction $^{72}\mathrm{Ge}$ is relevant to astrophysical $p$-process and was identified in a sensitivity study as one important reactions required estimate abundances light $p$ nuclei. $\ensuremath{\gamma}$-summing technique employed using summing NaI(Tl) detector (SuN) from National Superconducting Cyclotron Laboratory. experiment performed at...
Purpose: This study investigates variations in brain functional connectivity and activation regions during the processing of three different tones (first tone, second third tone) both deaf hearing children, employing deep learning methods. Additionally, research aims to discern differences these responses between typically developing children. Methods: The involves five children two as participants, with resting-state magnetic resonance imaging (fMRI) scans conducted using a MRI scanner....
The objective of this study is to investigate the brain activity patterns deaf children and hearing during processing two different tones (second tone third tone) using resting-state functional Magnetic Resonance Imaging (fMRI). Furthermore, aims identify differences in activation regions between task. Five were selected as participants. Resting-state (fMRI) scans conducted on subjects an fMRI scanner. acquired data then preprocessed analyzed examine activity. Deaf exhibit execution...
Vocal intonation is an important component of language that plays a key role in comprehension and communication. However, children with hearing loss face challenges vocal tone recognition due to impairment. In this study, five deaf two normal were recruited compare the differences second third tasks between children. The results revealed (1) Dysfunction certain brain regions responsible for processing tones associated their loss. This reveals profound impact on complex neural mechanisms...
The objective of this study is to investigate the brain activity patterns deaf children and hearing during processing two different tones (first tone second tone) using resting-state functional magnetic resonance imaging (fMRI). Furthermore, aims identify differences in activation regions between task. Five were selected as participants. Resting-state (fMRI) scans conducted on subjects an fMRI scanner. acquired data then pre-processed analyzed examine activity. Deaf exhibit execution...
The purpose of this study is to investigate the differences in brain functional connectivity between deaf and typically developing children when processing three different tones (tone 1, tone 2, 3) using deep learning methods. Additionally, goal identify variations activated regions during these two groups. Five were selected as participants. Resting-state magnetic resonance imaging (fMRI) scans conducted an fMRI scanner. Subsequently, data preprocessing analysis performed. A one-dimensional...
The challenge of small sample sizes in fMRI research, particularly studies involving specific groups like deaf children, necessitates specialized data analysis techniques. Our study introduces two such methods: the Bootstrap and Permutation methods, tailored for small-sample analysis. method involves resampling with replacement, creating numerous pseudo-samples to estimate statistical properties. Its advantages include simplicity minimal assumptions about distribution, but it faces potential...
The astrophysical p process is considered the main nucleosynthesis mechanism for creation of nuclei. accurate description this still suffers from large uncertainties both in environment and nuclear physics input. In latter case, reaction sensitivity studies have identified a group reactions that significant contribution to final p-nuclei abundance distribution. cross sections such "important" need be measured experimentally reason there major experimental effort provide data relevant...