Article
Multidisciplinary Sciences
Han Wu, Guoxin Yu
Summary: This article explains the power generation of civilian nuclear power plants and the development trend of nuclear technology utilization. It emphasizes the importance of constructing regional nuclear and radiation emergency monitoring material reserve warehouses. The research conducted on candidate locations for reserve warehouses using the multi factor method provides significant insights for optimal site selection.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Acoustics
Ata Jafarzadeh, Peter D. Folkow, Anders Bostrom
Summary: This study investigates the scattering of elastic waves by an anisotropic sphere with orthorhombic symmetry inside an isotropic medium, and applies it to the characterization of polycrystalline materials with anisotropic grains. The expansion coefficients of the wave and displacement field are determined inside the sphere using recursion relations and boundary conditions. The T matrix elements are then obtained and used to analyze the attenuation and phase velocity of polycrystalline materials, particularly at low frequencies. The proposed approach shows good agreement with previous results and finite element method for strongly anisotropic materials.
Article
Multidisciplinary Sciences
Meng Zhang, Zhenjiang Li, Yong Yin
Summary: This study aimed to evaluate the treatment response in HCC patients treated with SBRT using radiomics features extracted from 1.5T MRI. The results showed that the logistic regression-based model achieved high predictive capacity, and radiomics features extracted during MRgSBRT could predict tumor treatment response.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Multidisciplinary Sciences
Salahaden R. Sultan
Summary: This study aimed to assess the ability of ultrasound gray-scale analysis to differentiate carotid plaques in symptomatic and asymptomatic patients and evaluate its reproducibility. The results showed that carotid plaques in symptomatic patients had lower gray-scale values, and there was excellent inter-observer agreement.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Multidisciplinary Sciences
J. Hussain, Muhammad Afzal Soomro, Safia Amir Dahri, K. N. Memon, Mehak Bano, Fuad A. Awwad, Emad A. A. Ismail, Hijaz Ahmad
Summary: This study aims to analyze the probability distribution functions of the maximum value of skew-Brownian motion and the stock price process driven by the maximum value of skew-Brownian motion. It also aims to derive pricing formulas for European style call options, based on the maximum value of skew-Brownian motion and the stock price process driven by it. The developed formulas are applied to price binary (Cash or Nothing) options.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Multidisciplinary Sciences
Van-Hao Duong, Chau Nguyen Dinh, Tien Chu Trung, Hung Nguyen Quoc, Xuan-Doc Do, Thanh Huong Bui Thi, Hoang Ha Nguyen Thi, Oanh Nguyen Thi, Hung Dinh Viet, Chien Nguyen Quang, Que Hoang Dinh, Mohamed Saiyad Musthafa, Thanh Duong Van, Hoai-Nam Tran, Miklos Hegedus, Tibor Kovacs
Summary: This paper presents the radon concentrations of various water sources in the central part of Vietnam, showing significant variations in the measured radon concentrations.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Acoustics
Shuling Gao, Rui Zhang, Zheng Fan, Ning Li, Yanan Yue, Lili Xie
Summary: In this study, a novel method is proposed to monitor fatigue damage in welded joints by computing the energy density in the diffuse ultrasonic signal. The results indicate that the correlation coefficient of the energy density exhibits a significant decreasing trend when crack initiation occurs, providing a unique signal to indicate crack initiation in welded joints.
Article
Multidisciplinary Sciences
Muhammet Zeki Ozyurt, Wessam Almannaa
Summary: This study investigates the effect of modelling infill walls as a strut element on the building behavior of a reinforced concrete frame building. The results show that this modeling approach significantly increases the building's stiffness and is more effective in reducing lateral displacement. This has important implications for improving the seismic performance of reinforced concrete frame buildings.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2024)
Article
Neurosciences
Sheng-Che Hung, Carolina Guimaraes
NEUROIMAGING CLINICS OF NORTH AMERICA
(2024)
Article
Neurosciences
Paulo Puac-Polanco, Alex Rovira, Lubdha M. Shah, Richard H. Wiggins, Francisco Rivas Rodriguez, Carlos Torres
Summary: Cocaine-induced CNS vasculitis and midline destructive lesion, as well as reversible vasoconstriction syndrome triggered by substance abuse, are all important conditions that are associated with drugs and their risk factors.
NEUROIMAGING CLINICS OF NORTH AMERICA
(2024)
Article
Acoustics
Shuyuan Ye, Tianyu Peng, Zhili Long, Zhiming Jiang, Xiangqing Li, Zhonghua Cao
Summary: In this study, a novel approach based on beating vibration model is proposed for frequency tracking, which accurately determines the resonant frequency of the transducer in a short time.
Article
Acoustics
H. Franklin
Summary: This paper investigates the interaction between double porosity distributed cylindrical bodies and the surrounding fluid using a generalized self consistent method. The study reveals that there is a correlation between the propagating waves and the effective quantities at low frequencies, which is influenced by the volume fraction of scatterers and the porosity.
Article
Neurosciences
Aaron Bangad, Mehdi Abbasi, Sam Payabvash, Adam de Havenon
NEUROIMAGING CLINICS OF NORTH AMERICA
(2024)
Article
Acoustics
Fei Shen, Fan Fan, Fengji Li, Li Wang, Rui Wang, Yue Wang, Tao Liu, Cuibai Wei, Haijun Niu
Summary: In this article, the authors propose a strategy using the coupling of the boundary integral equation method (BIEM) and the finite element method (FEM) to overcome the computational burden involved in compensating for aberrated ultrasound waves caused by the skull. They conducted simulation experiments to evaluate the effectiveness of the proposed method and found that it guarantees convergence and achieves more accurate transcranial focusing compared to noncorrected results. The proposed strategy is valuable for enabling online ultrasound simulations during treatment, facilitating real-time adjustments and interventions.
Article
Acoustics
Maxwell J. Kiernan, Rashid Al Mukaddim, Carol C. Mitchell, Jenna Maybock, Stephanie M. Wilbrand, Robert J. Dempsey, Tomy Varghese
Summary: In this study, a method for automatically determining bounding boxes and lumen segmentation using a Mask R-CNN network trained on sonographer assisted groundtruth carotid lumen segmentations is presented. This method is of great importance for analyzing ultrasound images that require time and labor, and it also lays the foundation for developing accurate plaque segmentation and wall thickness measurement methods.
Article
Acoustics
Junzhen Wang, Jianmin Qu
Summary: This article presents the solution to guided wave fields in a double-layer plate and proposes a nonlinear spring-interface model for the bonding between the two sublayers. The study finds that the nonlinearity of the spring-interface can generate resonant guided waves in the double-layer plate, providing a theoretical foundation for the development of nondestructive evaluation techniques using nonlinear guided waves.
Article
Acoustics
Zubeir M. Ebrahim Saib, Anthony J. Croxford, Bruce W. Drinkwater
Summary: This paper proposes a numerical model using FDTD scheme to solve the nonlinear elastic bulk wave equations, aiming to better understand nonlinear ultrasonic techniques. The model considers material and geometrical nonlinearities and uses a stress-type boundary condition for excitation. Simulation and experimental results validate the effectiveness of the model.
Article
Chemistry, Inorganic & Nuclear
Ali Pashazadeh, Hamid Reza Baghani, Mostafa Robatjazi, Prajit Kadavil
Summary: This study investigated the effect of patch source geometric parameters on the depth dose distribution in skin tissue through Monte Carlo simulation. The results showed that increasing the source-to-skin distance, patch thickness, and patch diameter will reduce the depth dose distribution, with the source-to-skin distance having the most significant impact on dose gradient.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Neurosciences
Christina M. Marra
Summary: Stroke can be a complication of CNS infections, especially caused by VZV and T pallidum. Treatment with adjunctive dexamethasone for acute pneumococcal meningitis is recommended, but it may lead to the emergence of DCV syndrome.
NEUROIMAGING CLINICS OF NORTH AMERICA
(2024)
Article
Neurosciences
Renato Hoffmann Nunes, Diogo Goulart Correa, Felipe Torres Pacheco, Ana Paula Alves Fonseca, Luiz Celso Hygino da Cruz Jr, Antonio Jose da Rocha
Summary: Vasculopathy is a significant consequence of various infections, and early recognition is essential as many of these diseases have poor outcomes if left untreated. Neuroimaging techniques such as MRI, CTA, and MRA can be used to visualize the complications associated with infectious vasculopathy, while high-resolution intracranial vessel wall imaging can directly assess the presence of vasculitis.
NEUROIMAGING CLINICS OF NORTH AMERICA
(2024)
