Article
Chemistry, Physical
Zahra Ahmadi Ganjeh, Mohammad Eslami-Kalantari, Mahdy Ebrahimi Loushab, Ali Asghar Mowlavi
Summary: A simulation was conducted comparing the DNA damages caused by 114.2 MeV/u carbon ions and 62 MeV protons at different depths. It was found that carbon ions had higher ratios of Double-Strand Breaks (DSBs) compared to protons, indicating their greater effectiveness in biological effects. Additionally, a new damage diagnostic algorithm was developed to assist in identifying these breaks.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Chemistry, Analytical
Shubhro Chakrabartty, Abdulkarem H. M. Almawgani, Sachin Kumar, Mayank Kumar, Suvojit Acharjee, Alaaddin Al-Shidaifat, Alwin Poulose, Turki Alsuwian
Summary: Research has shown that TiO2 nanoparticles-based films have promising applications in the field of electronics, especially in energy-efficient memories, neural networks, and neuromorphic computing. The angle toppling technique (ATT) was used to fabricate TiO2 nanoparticles, and the samples underwent annealing processes. The research results indicate that the film exhibits good endurance and charge storage performance, making it a potential candidate for brain computing applications.
Article
Chemistry, Physical
Yantao Yu, Chunqi Wang, Chao Jiang, Lanzhi Wang, Ze Wang, Zuojuan Du, Jia Sun, Isaac Abrahams, Xiaozhong Huang
Summary: Titanium dioxide memristors doped with nitrogen exhibit excellent performance in mimicking synaptic functions of the human brain, with bidirectional gradually changing conductance and high endurance over 8000 cycles. This promising approach for neuromorphic computing allows for synaptic features simulation and tunable memory lifetimes through manipulation of stimulation parameters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Computer Science, Information Systems
Alfredo Nespoli, Emanuele Ogliari, Sonia Leva
Summary: The increasing adoption of electric vehicles presents challenges for the electrical distribution network. Accurate forecasting of electric vehicle charging sessions is crucial for predictive energy management systems that improve grid operation. This paper proposes a comprehensive methodology that clusters historical charging sessions based on user characteristics and predicts each session using arrival time, duration, and expected power parameters. The method is evaluated using a real case study, showing significant improvements in energy accuracy and predicted charging sessions compared to a benchmark. The overall Skill Score for 2019 is 0.37.
Article
Mechanics
Haibing Peng
Summary: Despite the widespread use of Navier-Stokes equations in computational-fluid-dynamics (CFD), there are still unanswered questions due to the absence of considering the statistical nature of discrete air molecules. In this study, we propose a statistical mechanics-based approach called the volume-element method, which allows for the numerical evaluation of aerodynamic lift and drag. We obtained pressure and friction values as a function of the angle of attack for flat-plate airfoils, and this method can be directly applied to convex-shape airfoils and combined with Monte Carlo simulations for concave-shape airfoils. This approach not only has implications for aerodynamic applications, but also opens up possibilities for further applications in Boson or Fermi gases.
Article
Biochemistry & Molecular Biology
Valeria Conte, Anna Bianchi, Anna Selva
Summary: This study used Monte Carlo track structure simulations to calculate the mean ionization yield M1 and cumulative probabilities F-1, F-2, and F-3 of at least one, two, and three ionizations in spherical volumes of water-equivalent diameters of 1, 2, 5, and 10 nm. When plotted as a function of M1, the quantities F-1, F-2, and F-3 followed unique curves, independent of particle type and velocity but dependent on the size of the sensitive volume. Biological cross sections were strongly correlated to combined probabilities of F-2 and F-3 calculated in the spherical volume with site size of 1 nm, and the proportionality factor was the saturation value of biological cross sections.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Nico Verbeek, Joerg Wulff, Martin Janson, Christian Baumer, Sameera Zahid, Beate Timmermann, Lorenzo Brualla
Summary: This study measured multiple Coulomb scattering (MCS) angles in proton transport using an experimental method and compared the results with Monte Carlo simulations and analytical models. The experimental data agreed with previous findings, with an average deviation of 3% and a combined average uncertainty of 1.8%. The Monte Carlo and analytical algorithms studied were capable of reproducing MCS data within the required accuracy for clinical applications.
Article
Materials Science, Multidisciplinary
Valentina Prusakova, Giovanni Giusti, Cristian Collini, Giancarlo Pepponi, Mario Barozzi, Leandro Lorenzelli, Salvatore Iannotta, Roberto Verucchi, Sandra Dire
Summary: This study investigates the resistive switching properties of metal oxide thin films and proposes an innovative approach to improve the fabrication of memristive devices. A comparison of TiO2 thin films produced by different methods demonstrates an enhancement of memristive properties and reduction of electrical shorts in TiO2 based devices.
Article
Chemistry, Analytical
AiYun Sun, WenBao Jia, DaQian Hei, MengCheng Qiu, Can Cheng, JiaTong Li
Summary: This study introduces a weighted library least squares approach (WLLS) that reduces fluctuations in statistical uncertainty in spectra by using the square root of the count for weighting. The method also decreases the average standard deviation of the results to at least 0.37 times that of the traditional approach.
ANALYTICAL METHODS
(2021)
Article
Computer Science, Theory & Methods
Xinzhu Liang, Shangda Yang, Simon L. L. Cotter, Kody J. H. Law
Summary: This paper addresses the problem of estimating expectations when the normalizing constant of the target distribution is unknown and the unnormalized target needs to be approximated at finite resolution. Building upon a recently introduced multi-index sequential Monte Carlo (SMC) ratio estimator, this work combines the complexity improvements of multi-index Monte Carlo (MIMC) with the efficiency of SMC for inference. The proposed method uses a randomization strategy to remove bias entirely, simplifying the estimation process, particularly in the context of MIMC.
STATISTICS AND COMPUTING
(2023)
Article
Engineering, Aerospace
Ritabrata Sarkar, Abhijit Roy
Summary: This paper explores the mechanism of Cosmic Ray Albedo Neutron Decay (CRAND) in the formation of the inner proton radiation belt and calculates the distribution of trapped proton radiation at low Earth orbits through Monte Carlo simulation. The study addresses computational challenges, develops an optimized algorithm to minimize computation time, and compares simulation results with measurements from the PAMELA experiment.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Chemistry, Physical
Shiyan Wang, Anirudh Venkatesh, Doraiswami Ramkrishna, Vivek Narsimhan
Summary: A Brownian bridge is a continuous random walk guided by an effective drift to control the endpoint of a stochastic process. While widely applicable in chemical science, the main limitation is the difficulty in determining the effective drift and solving the complex Backward Fokker-Planck equation.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Paulo Douglas S. de Lima, Gilberto Corso, Mauro S. Ferreira, Joao M. de Araujo
Summary: Full-Waveform Inversion (FWI) is a high-resolution technique used in geophysics to evaluate physical parameters and construct subsurface models. The ill-posed nature of FWI presents a challenging problem as multiple models can match the observations. Solving FWI requires efficient sampling techniques to infer parameter information and estimate uncertainties in high-dimensional model spaces. This study investigates the feasibility of using the Hamiltonian Monte Carlo (HMC) method in acoustic FWI and proposes a new strategy for tuning the mass matrix based on seismic survey geometry. The methodology significantly improves the ability of the HMC method in reconstructing reasonable seismic models with reduced computational efforts.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Jian Wang, Xiang Gao, Zhili Sun
Summary: The paper introduces a method called multilevel Monte Carlo (MLMC) for time-variant reliability analysis, aiming to enhance computational efficiency while maintaining accuracy and robustness. By discretizing the time interval using a geometric sequence of different timesteps and estimating the cumulative probability of failure with corrections from all levels, the method optimizes the number of random samples at each level to minimize computational complexity. Independently computed corrections at each level allow achieving accuracy at a lower cost compared to crude Monte Carlo simulation, while maintaining robustness to nonlinearity and dimensions.
Article
Computer Science, Software Engineering
Ryusuke Sugimoto, Terry Chen, Yiti Jiang, Christopher Batty, Toshiya Hachisuka
Summary: We introduce the walk-on-boundary (WoB) method, a grid-free Monte Carlo solver, for solving certain second order partial differential equations in computer graphics. Compared to the popular walk-on-spheres (WoS) method, WoB has additional advantages as it naturally supports various boundary conditions and is mathematically similar to light transport simulation in rendering. We demonstrate the advantages of WoB over WoS through numerical results, showing that WoB can estimate solutions precisely on the boundary without suffering from intrinsic bias.
ACM TRANSACTIONS ON GRAPHICS
(2023)
Correction
Chemistry, Physical
Srdjan Milosavljevic, Djordje Lazarevic, Koviljka Stankovic, Milic Pejovic, Milos Vujisic
INTERNATIONAL JOURNAL OF PHOTOENERGY
(2017)
Article
Engineering, Electrical & Electronic
Uros Kovacevic, Ivica Milovanovic, Milos Vujisic, Koviljka Stankovic, Predrag Osmokrovic
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2014)
Article
Physics, Fluids & Plasmas
Koviljka Stankovic, Malisa Alimpijevic, Milos Vujisic, Predrag Osmokrovic
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2014)
Article
Nuclear Science & Technology
Vojislav M. Antic, Koviljka Dj. Stankovic, Milos Lj. Vujisic, Predrag V. Osmokrovic
NUCLEAR TECHNOLOGY & RADIATION PROTECTION
(2014)
Article
Nuclear Science & Technology
Marija D. Obrenovic, Djordje R. Lazarevic, Edin C. Dolicanin, Milos Lj. Vujisic
NUCLEAR TECHNOLOGY & RADIATION PROTECTION
(2014)
Article
Materials Science, Multidisciplinary
Zoran Rajovic, Koviljka Stankovic, Milos Vujisic, Predrag Osmokrovic
Article
Chemistry, Physical
Zeljko Janicijevic, Ivica Vujcic, Dorde Veljovic, Milos Vujisic, Filip Radovanovic
RADIATION PHYSICS AND CHEMISTRY
(2020)
Article
Nuclear Science & Technology
Milan Vujovic, Milos Vujisic
Summary: The borehole disposal concept is a standardized solution for the disposal of sealed radioactive sources, and this study examines the suitability of polymers and polymer-based composites as inner linings. The results indicate that these materials are a viable option for use in borehole disposal containers.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Environmental Sciences
Marko Krajinovic, Milos Vujisic, Olivera Ciraj-Bjelac
Summary: This study provides a comprehensive analysis of uncertainties associated with the use of software solutions utilizing DICOM RDSRs for skin dose assessment in the interventional fluoroscopic environment. The overall skin dose relative uncertainty has been found to range from 13 to 61%, emphasizing the importance of adequate analysis and control of all relevant uncertainty sources.
RADIATION PROTECTION DOSIMETRY
(2021)
Article
Nuclear Science & Technology
Milan Vujovic, Milos Vujisic
Summary: This study considers several select geopolymers, polymers, and composite materials as potential candidates for inner shielding in containers used for storage and disposal of low- and intermediate-level radioactive waste. The materials are examined through Monte Carlo simulations to determine their suitability, dose values, and gas overpressure within the containers.
NUCLEAR TECHNOLOGY
(2022)
Article
Nuclear Science & Technology
Slobodan Milutinovic, Milos Vujisic
NUCLEAR SCIENCE AND TECHNIQUES
(2020)
Correction
Chemistry, Multidisciplinary
Milica Budimir, Zoran Markovic, Dragana Jovanovic, Milos Vujisic, Matej Micusik, Martin Danko, Angela Kleinova, Helena Svajdlenkova, Zdeno Spitalsky, Biljana Todorovic Markovic
Article
Chemistry, Multidisciplinary
Milica Budimir, Zoran Markovic, Dragana Jovanovic, Milos Vujisic, Matej Micusik, Martin Danko, Angela Kleinova, Helena Svajdlenkova, Zdeno Spitalsky, Biljana Todorovic Markovic
Proceedings Paper
Physics, Applied
Slobodan Milutinovic, Filip Jeremic, Marko Misic, Milos Vujisic, Predrag Marinkovic
FOURTH INTERNATIONAL CONFERENCE ON RADIATION AND APPLICATIONS IN VARIOUS FIELDS OF RESEARCH (RAD 2016)
(2016)
Article
Materials Science, Multidisciplinary
N. S. Zdjelarevic, M. Lj. Vujisic
JOURNAL OF OVONIC RESEARCH
(2015)
