High Performance 3D PET Reconstruction Using Spherical Basis Functions on a Polar Grid by J. Cabello, J. E. Gillam, M. Rafecas

“…Statistical iterative methods are a widely used method of image reconstruction in emission tomography. …”
Get full text

FATIGUE ANALYSIS AND OPTIMIZATION OF TRANSVERSE STAILIZER BAR LINK BASED ON MEASURED LOAD SPECTRUM by LIU Zhilei, DU Jian, HAN Jie

“…Through the kinematics compliance（KC） test, the accuracy of suspension dynamics model was verified, by using virtual iteration method, the accuracy of the vehicle dynamic model is verified by the measured load spectrum signal as excitation. …”
Get full text

Spectral Steady-State Analysis of Inverters With Temperature-Dependent Losses Using Harmonic Balance by Pelle Weiler, Bas Vermulst, Erik Lemmen, Korneel Wijnands

“…Averaged loss models often neglect the temperature dependence of transistors, leading to fast, but inaccurate results. In contrast, iterative methods and simulation tools, which can include temperature dependence, take significantly longer to compute, but yield more precise results. …”
Get full text

Iterative Analytical Solutions for Nonlinear Two-Phase Flow with Gas Solubility in Shale Gas Reservoirs by Xiaoji Shang, J. G. Wang, Zhizhen Zhang

“…Then, iterative analytical solutions for pore pressures and production rates of gas and water are derived by the combination of travelling wave and variational iteration methods. Thirdly, the convergence and accuracy of the solutions are checked through history matching of two sets of gas production data: a China shale gas reservoir and a horizontal Barnett shale well. …”
Get full text

Binary program taint analysis optimization method based on function summary by Pan YANG, Fei KANG, Hui SHU, Yuyao HUANG, Xiaoshao LYU

“…Taint analysis is a popular software analysis method, which has been widely used in the field of information security.Most of the existing binary program dynamic taint analysis frameworks use instruction-level instrumentation analysis methods, which usually generate huge performance overhead and reduce the program execution efficiency by several times or even dozens of times.This limits taint analysis technology’s wide usage in complex malicious samples and commercial software analysis.An optimization method of taint analysis based on function summary was proposed, to improve the efficiency of taint analysis, reduce the performance loss caused by instruction-level instrumentation analysis, and make taint analysis to be more widely used in software analysis.The taint analysis method based on function summary used function taint propagation rules instead of instruction taint propagation rules to reduce the number of data stream propagation analysis and effectively improve the efficiency of taint analysis.For function summary, the definition of function summary was proposed.And the summary generation algorithms of different function structures were studied.Inside the function, a path-sensitive analysis method was designed for acyclic structures.For cyclic structures, a finite iteration method was designed.Moreover, the two analysis methods were combined to solve the function summary generation of mixed structure functions.Based on this research, a general taint analysis framework called FSTaint was designed and implemented, consisting of a function summary generation module, a data flow recording module, and a taint analysis module.The efficiency of FSTaint was evaluated in the analysis of real APT malicious samples, where the taint analysis efficiency of FSTaint was found to be 7.75 times that of libdft, and the analysis efficiency was higher.In terms of accuracy, FSTaint has more accurate and complete propagation rules than libdft.…”
Get full text

Inverse kinematics solution and control method of 6-degree-of-freedom manipulator based on deep reinforcement learning by Chengyi Zhao, Yimin Wei, Junfeng Xiao, Yong Sun, Dongxing Zhang, Qiuquan Guo, Jun Yang

“…Traditional inverse kinematics solution algorithms often face the problem of insufficient generalization, and iterative methods have challenges such as large computation and long solution time. …”
Get full text

Implementing an intrahospital transport preparation (IHT) and management project for critically ill patients: identification of barriers and facilitators using consolidated framewo... by Jing Wang, Li Ma, Ying Lu, Baohua Li, Xiaotian Zhang, Rui Xie, Guifen Li, Man Cui, Lanfang Du

“…Objective To investigate the factors contributing to or hindering intrahospital transport preparation and management projects using the consolidated framework for implementation research (CFIR) framework.Design Semistructured interviews were used in a qualitative descriptive study.Setting This study was conducted in the emergency room of a tertiary hospital in Beijing, China, between December 2023 and January 2024.Participants Purposive sampling was employed to recruit 22 doctors and nurses involved in intrahospital transport.Primary and secondary outcome measures A content analysis technique was employed to transcribe and analyse all gathered data. Iterative methods were used for the data collection and analysis.Results 39 implementation determinants—11 barriers, 25 facilitators and 3 neutral factors—were identified. …”
Get full text

Optimal Lane Allocation Strategy in Toll Stations for Mixed Human-Driven and Autonomous Vehicles by Zuoyu Chai, Tanghong Ran, Min Xu

“…Moreover, regarding the interesting conclusion that all ETC-HVs choose the ETC lanes, we derived the relaxed analytical solution of MINLBP using a parameter iteration method. The analytical solution confirmed the validity of the numerical experiment results. …”
Get full text

Fatigue Life Evaluation of Racks for the Three Gorges Ship Lift Based on the Load Spectrum by Chen Zhuo, Shi Lubing, Yan Xiaoqing, Tang Weibi, Li Xuefei, Liu Zhongming

“…In addition, the cumulative iteration method is used to calculate the contact and bending safety factors of the rack, which realizes the comparison between the actual load and the design load of the rack and the operation safety performance verification. …”
Get full text

Optimisation of Longitudinal Seismic Energy Dissipation System for Straddle-type Monorail-Cum-Road Long-Span Cable-Stayed Bridge by Xiong Liang, Baomu Li, Xiaolu Liu, Linong Liang

“…To investigate the optimal longitudinal seismic energy dissipation system of straddle-type monorail-cum-road long-span cable-stayed bridges, the Niutianyang Bridge was selected as the engineering background, and the explicit time-domain dimension-reduced iteration method was adopted to carry out nonlinear time-history analysis. …”
Get full text

An Effective Robust Total Least-Squares Solution Based on “Total Residuals” for Seafloor Geodetic Control Point Positioning by Zhipeng Lv, Guorui Xiao

“…The conventional Robust TLS (RTLS) strategy is to adopt the selection weight iteration method based on each single prediction residual. …”
Get full text

A compressive damage model for a rock considering the microcrack mechanical behavior by Cui LIU, Zhong LI, Feiya XU, Mo ZHANG, Xiaowei CAO, Heng LEI

“…Then the mixed fracture propagation length of the wing-crack was solved with the strain energy density criterion as the microcrack propagation criterion and iteration method. The damage evolution equation was obtained with the wing-crack propagation length. …”
Get full text

Modelling of the closed equilibrium system H2O–(CO2)W–CaCO3–NaH2PO4 for wastewater treatment applications by Ivar Zekker, Oleg Artemchuk, Ergo Rikmann, Kalev Uiga, Laura Daija, Faysal-Al Mamun, Andrejs E. Krauklis, Ruta Ozola-Davidane, Taavo Tenno, Toomas Tenno†

“…This paper focuses on studying the closed equilibrium system H2Oâ(CO2)WâCaCO3âNaH2PO4, elucidating the structural distribution of ions and mol ecules within this system. Utilizing the iteration method, we calculate pH, concentrations of formed ions and molecules, and proton transfer parameters based on a developed proton transfer model. …”
Get full text