bluuebunny/crossref_metadata_2025_split huggingface dataset:
Symposium introduction: Reviewing the Federal Reserve's framework
Authors: Cutsinger Bryan P. , Luther William J. 
Published: January 2025

AbstractThe Federal Reserve introduced a new monetary policy framework in August 2020. Shortly after, inflation picked up, reaching a 40‐year high of 7.0% in June 2022. We explain why prices have risen so high over the last few years, why they remain elevated, and how the Fed's monetary policy framework might be revised in light of this experience.
Reinforced concrete dapped‐end beams for existing bridges: Reliability of finite element models
Authors: Flores Ferreira Katherina , Rampini Marco Carlo , Belletti Beatrice , Calcavecchia Biagio , Camata Guido , D'Angela Danilo , Di Salvatore Chiara , Di Stefano Nico , Faccin Enrico , Ferretti Daniele , Granata Michele Fabio , Iavarone Fabiola , La Mendola Lidia , Magliulo Gennaro , Martinelli Paolo , Menichini Giovanni , Messina Davide , Minelli Fausto , Orlando Maurizio , Plizzari Giovanni , Ravasini Simone , Recupero Antonino , Spacone Enrico , Spinella Nino , Tuozzo Federico , Zani Giulio , di Prisco Marco 
Published: January 2025

AbstractHalf‐joints in reinforced concrete girder bridges are generally considered critical elements, susceptible to degradation and potentially impacting the overall structural behavior. An Italian project carried out by ReLUIS interuniversity consortium addresses theoretical, numerical, and experimental studies on critical aspects of existing road bridges. One task is aimed at investigating existing half‐joints. The paper offers a comprehensive assessment of finite element numerical simulations applied to a reinforced concrete dapped‐end beam through an Italian benchmark study. Leveraging recent experimental campaign data as a reference, the study conducts partially blind numerical simulations. The benchmark procedure follows a systematic approach across three subsequent phases. Emphasizing the comparison between experimental data and numerical simulations, the paper introduces discrete and continuous error indicators to gauge numerical prediction efficacy across phases. Global synthetic indices are proposed to measure performance at serviceability and ultimate limit states. The discussion section integrates insights from eight research units, presenting a comprehensive analysis of simulation outcomes. Conclusive remarks outline implications and potential research directions in the realm of reinforced concrete dapped‐end girder bridges.
MxKernel: A Bare-Metal Runtime System for Database Operations on Heterogeneous Many-Core Hardware
Authors: Dreimann Marcel Lütke , Mühlig Jan , Müller Michael , Spinczyk Olaf , Teubner Jens 
Published: January 2025

Abstract
Large-scale data processing forms the core of modern online services, such as social media and e-commerce, calling for an ever-increasing performance with predictable service quality. Even though emerging hardware platforms can deliver the required performance, actually harnessing it and guaranteeing a certain service quality is still a challenge for application and system software developers. We argue that the major hindrance for applications and system software alike lies in the design of today’s system software architecture. The thread abstraction, for example, hides hardware characteristics, such as the memory topology or accelerators from applications and application behavior from the system software, forcing the latter to base resource management on assumptions while preventing the former from leveraging the potential of modern hardware. We present the as a novel system software architecture with the requirements of modern data-intensive applications in mind. Instead of threads, the provides s as control flows, short, closed units of work that can easily be annotated with application-specific hints giving a glimpse into an application’s future behavior. These hints are used by the to provide automatic synchronization and prefetching, as well as efficient dynamic resource partitioning to ensure performance isolation and the observance of quality of service requirements.
Structural Design and Kinematic Analysis of a Three-Servo-Wheel Omnidirectional Mobile Platform
Authors: Chen Junyi , Chen Hongbiao , Wang Siqi , Liu Na 
Published: January 2025

Abstract
In response to the current situation that traditional drive units in robotics competition are weak in the face of increasing technical requirements of the competition, we propose a solution to build a mobile robot based on a three-servo-wheel omnidirectional mobile platform. The mechanical mechanism and control algorithm of the solution are optimized, and the feasibility of the design is verified by motion simulation, and the physical prototype is developed and tested with excellent performance based on the simulation results. The kinematic analysis of the robot's omnidirectional movement by means of coordinate transformation is proposed, and innovation is achieved in the research method. It reduces the negative impact of the difficult knowledge system related to higher mathematics and linear algebra on the participant group who mostly rely on self-learning to complete the robot production, and enables the participant group to study the motion control related to the robot using an easy-to-understand method to improve their comprehensive application of knowledge, which has a certain promotion effect on attracting more people to participate in robotics competitions.
Operational Effectiveness Evaluation of Stratospheric Airship Anti-stealth Penetration
Authors: Chen Zhibing , Miao Minchang , Wu Heng 
Published: January 2025

Abstract
Stratospheric airships have emerged as ideal platforms for persistent reconnaissance, surveillance, air defense, missile defense, electronic warfare, and communication relays in military applications, garnering significant attention both domestically and internationally. Addressing the efficacy evaluation requirements of the stratospheric airship, this study begins by analyzing scenarios involving anti-stealth penetration operations, meticulously delineating the interaction processes of various equipment, and distilling the key capabilities of the stratospheric airship. Subsequently, employing the ABMS (Agent-Based Modeling and Simulation) method, stealth aircraft, anti-aircraft missile, ground radar, and other equipment are abstracted as intelligent agents to construct a simulation platform for stealth aircraft penetration and counteraction. Finally, interception rate and average distance of first lock-on are selected as evaluation metrics to investigate the changes in evaluation criteria with and without the presence of stratospheric airships, thereby achieving the goal of assessing the operational effectiveness of stratospheric airships.
Fuzzy Backpropagation Neural Network PID Control of a 6-DOF Parallel Robot
Authors: Chen Liugang , Zhu Pengcheng , Qiang Wang , Zhang Xingbin , Wang Shufen 
Published: January 2025

Abstract
To investigate the motion of a ship in the ocean, a six-degree-of-freedom hydraulically driven parallel mechanism is designed, the inverse solution algorithm of parallel robot is derived, and the control algorithm of parallel robot is established. The control performance of the parallel robot is developed and improved through co-simulation employing mechanical, hydraulic, and control software. PID control, Fuzzy PID control, and Fuzzy BPNN (Backpropagation Neural Network) PID control are developed for the parallel mechanism with multiple inputs and outputs, high nonlinearity, and strong coupling. The results indicate that the displacement error of the parallel platform have good tracking performance when under Fuzzy BPNN PID control.
Simulation and Experimental Study of Single Abrasive Grain Grinding of Carbon Steel
Authors: Zhang Shengfang , Duan Qiang , Leng Zhiyi , Yin Jian , Wang Ziguang , Liu Yu 
Published: January 2025

Abstract
Carbon steel is a commonly used metal material in machining, which has high surface quality requirements during its usage. The randomness of the shape, size and distribution of abrasive grains on the surface grinding wheel makes the analysis of the grinding process complex. To analyze the grinding process of abrasive grains effectively, a single abrasive grain force-heat coupling model is built using ABAQUS finite element calculation software. The built simulation model is uesd to analyze the influence of grinding temperature and residual stress depth under different processing conditions, and the experiments are conducted to validate the validity of the model. The results show that both the grinding temperature and residual stress depth of show an upward trend with the increase of grinding speed and grinding depth during the grinding process. In the grinding experiment, both the grinding temperature and surface roughness show an upward trend with the increase of grinding depth, the grinding temperature shows an upward trend with the increase of grinding speed, and the surface roughness of the workpiece shows a downward trend. The variation trend is consistent with the simulation results, and the simulation model could effectively simulate the grinding process.
2-UPS/RRR Ankle Rehabilitation Robot Design and Kinematic Analysis
Authors: Wang Feiyang , Zheng Yi , Wang Youqiang 
Published: January 2025

Abstract
Based on the structural characteristics of the ankle joint and the great demand for ankle rehabilitation robots in the current market, a simple and practical 3-degree-of-freedom 2-UPS/RRR parallel mechanism is proposed based on the analysis of the existing ankle rehabilitation robot mechanism for traditional ankle rehabilitation and other problems. The design of the constrained support chain and moving platform ensures that the rotational centers of the mechanism coincide with the rotational centers of the ankle joints of different patients; firstly, a degree of freedom analysis is carried out using the Kutzbach-Grubler degree of freedom formula, which leads to the conclusion that the robot has 3 rotational degrees of freedom; secondly, the closed-loop vector method is used to obtain the inverse equation of the robot's position; and finally, the boundary search method is used to solve the workspace, which shows that the robot has three rotational degrees of freedom. Finally, the boundary search method is used to solve the workspace, which shows that the robot meets the requirements of ankle rehabilitation range of motion. The results show that the range of motion of the designed ankle rehabilitation mechanism can meet the demand of human ankle rehabilitation.
System Engineering-Based Flight Simulation Device Design Technology and Application Research
Authors: Wang Huanyu , Zhang Chao , Chen Yong 
Published: January 2025

Abstract
The development of modern aviation industry urgently needs a large number of high-level flight simulation device (FSD) for multiple applications such as technologies research, aircraft test and pilot training. Traditionally, these FSD are manufactured by different TDM to meet individual requirement, which may encounter difficulty in correctness, integrity or fidelity. How to develop the FSD and its simulation packages for research, engineering and training scenarios with a more coordinated and efficient methodology is the key to the development of high-level FSD for one particular aircraft project. This paper proposes that FSD shall be classified, according to development process and control requirements into three categories, which are Flight Simulation Training Device (FSTD), Flight Simulation Engineering Device (FSED) and Flight Simulation Research Device (FSRD). In particular, the simulation package provide the basis for the evolution of the multiple applications of the FSD. In this paper, the key design of FSD and simulation packages is given by proposing a technical strategy, which is based on system engineering (SE), with the development of FSED simulation packages as the central objective, and evolving and applying them to more mission such as research and training by validation and verification (V&V) of the requirement. This technical strategy shows major value (1) in optimizing correctness, integrity, and fidelity through process assurance, (2) in shortening the development cycle and reducing the cost by reducing duplication of efforts, (3) in reducing the technical risk of the simulation package, which is accompanied by aircraft and system design and development, and (4) in standardizing and eliminating of inconsistencies of the simulation modeling data, which is oriented from FSED with rigor configuration management. This research intends to promote the development of the domestic aircraft and the growth of the FSD-connected technology.
Design and Simulation of EMU Traction Control System Based on Simulink
Authors: Xu Donglin , Zhang Chunguang , Song Qingbo , Zhang Lifang 
Published: January 2025

Abstract
In view of the high harmonic content of AC–DC–AC locomotive, which will sometimes damage the important equipment of locomotive and even cause accidents such as circuit tripping, this paper first takes CRH2 EMU train as the research object, analyzes the working principle of its traction drive system and four-quadrant pulse rectifier with three-level topology, and designs and simulates the main rectifier circuit of this EMU with Simulink simulation software. Then, the simulation models of the main rectifier circuit of the EMU, including main circuit, transient current control module, neutral point potential balance control module, SPWM modulation module and PWM pulse distribution module, are designed and established in detail. Finally, by changing the values of the main parameters in the simulation model, the influence of different parameter values on the simulation results is compared and analyzed, and the difference between the main rectifier circuit working in traction mode and regenerative braking mode is studied through simulation. The simulation results show that the rectifier of CRH2 EMU can achieve the control goal of bidirectional energy flow.
Evaluation Method for Multi-element Design of Civil Aircraft Cabin
Authors: Zhao Wen , Tang Xiaoliang 
Published: January 2025

Abstract
The passengers’ working and resting space during their journey is crucial. Beyond the aircraft’s inherent performance, the cabin environment is a focal point. The aim is to employ a multi-factor design and assessment approach within the aircraft cabin, comprehensively analyzing value opportunities. This involves researching and establishing a product-service system model for the cabin, encompassing user touchpoints in the cabin experience. The goal is to formulate a systematic methodology guiding multi-sensory interaction design and evaluation throughout the entire lifecycle of the cabin. This approach is anticipated to yield substantial guiding value for the design and assessment methods of commercial aircraft cabins.
Machining Efficiency Optimization in Flank Milling of Curved Thin-walled Workpieces with Target Machining Accuracy
Authors: Yuan Xing , Fan Yuqi , Ma Tao , Wang Shuting , Mao Xinyong , Zhang Lei 
Published: January 2025

Abstract
Curved aluminium alloy thin-walled workpieces are an integral part of essential components in aerospace. Aggressive machining parameters can reduce the machined surface roughness and dimensional accuracy during flank milling for the thin-walled workpiece. However, conservative machining parameters can constrain the machining efficiency. To solve this issue, this article develops a machining parameter optimization method for curved thin-walled workpieces during flank milling. The method comprehensively considers the impact of time-varying deflection and material removal of curved thin-walled workpieces during the flank milling and further analyses the influence of machining parameters on machining surface roughness and dimensional accuracy. The optimized processing parameters can maximize the processing efficiency for curved thin-walled workpiece to satisfy the processing dimensional precision and surface roughness.
Design of Electromagnetic Environment Analysis and Simulation Deduction System for Equipment Testing
Authors: Yin Yunxia , Liu Jiaxun , Wei Zhanji , Mu Yao , Yuan Lihuan 
Published: January 2025

Abstract
The electromagnetic environment on the battlefield is an important factor affecting the combat effectiveness of equipment, and using electromagnetic environment software for equipment testing and training has become one of the current mainstream methods. In response to the problem that the original simulation training system can only set initial conditions and be automatically executed by computers according to the model, and cannot be combined with equipment for electromagnetic countermeasure support training, an equipment testing electromagnetic environment analysis and simulation deduction system is constructed. It has the characteristics of combining equipment strike, “man in the loop” simulation exercise method, flexible and dynamic combat deduction, etc., and compensates for the single content of simulation exercises and the disadvantage of fixed processes.
An Analysis of Material Movement Trajectory in Eccentric Vibration Transport Equipment
Authors: Wei Li , Liu Xiaogang 
Published: January 2025

Abstract
A vibration transport device with an eccentricity of 3 mm was designed for an automated detection machine of condoms. The composition and principle of the device were introduced, and the kinematics of the vibration groove and condoms were analyzed, and corresponding mathematical expressions were derived. Finally, the accuracy of the theoretical results of the kinematics of the vibration groove and condoms was verified through simulation using Adams and MATLAB software.
Dynamics Analysis of Marine Gas Turbine Modelled Rotor
Authors: Zou Minxuan , Zhang Gang , Bian Shiji , He Yuliang , Li Xu 
Published: January 2025

Abstract
Since the beginning of the 21st century, more and more countries have taken the gas turbine as the preferred power for the main battle ships at sea. The gas turbine has high reliability and long service life, which meets the requirements of high-intensity and long-term offshore operations. This paper takes the physical model of the rotor of the dynamic vortex section of the marine gas turbine as the basis, combines the relevant theories, and ensures that the static characteristics of the rotor are basically unchanged in the case of modelling treatment. ANSYS software is used to carry out finite element simulation of the modelled rotor and analyse the dynamic parameters of the rotor system. At the same time, the strength of the modelled rotor is checked and calculated to verify that it meets the strength requirements.
Dynamics Study of Mechanism with Clearance Based on Adams
Authors: Li Ru , Li Na , Chen Fei , Zhao Xin 
Published: January 2025

Abstract
In view of the influence of the motion pair gap on the dynamic characteristics of the mechanism, considering the gap size and the driving load, an improved nonlinear contact collision model is proposed, the friction with the modified Kulun force friction model. Movement pair gap with mass vector rod equivalent, using discrete analysis method for collision between the motion, the crank slider mechanism as an example, the clearance mechanism model in Adams, using the algorithm of unilateral impact function to calculate the collision force, quantitative analysis of the dynamic characteristics of the mechanism, verify the consistency of the simulation results and theoretical value, provides a theoretical basis for the design and analysis of the clearance mechanism.
Dynamic Characteristics Analysis of Prosthetic Knee Joint Based on MR Damper
Authors: Ren Xiaoyong , Zhen Liang , Li Yujun , Liu Yanfeng 
Published: January 2025

Abstract
In order to solve the needs of the disabled for limb rehabilitation, the prosthetic knee joint can swing freely with the intention of the stump user. According to the driving principle of the prosthetic knee joint of MR Damper, the prosthetic limb is designed. By making full use of the magnetization characteristics of magnetorheological fluid, the magnitude of current is related to the magnitude of damping force, and the torque of the knee joint is changed by changing the input current to control the swing of the prosthetic knee joint and improve the movement flexibility of the prosthetic knee joint. The results show that the proposed prosthetic based on MR Damper can be passively bent and actively extended during horizontal walking swing, and has good stability and flexibility.
Data Exchange for SysML: A Review
Authors: Zhou Chen , An Baoran , Yu Bin , Li Suicheng 
Published: January 2025

Abstract
In the practice of Model-Based Systems Engineering (MBSE), where SysML models serve as the foundation for system integration frameworks, the maintenance of consistency of shared information across system models and other models requires the use of data exchange methods. A range of data exchange methods are proposed to address different exchange scenarios. This study surveyed literature related to these methods and elaborated on the three accomplished forms of data exchange and the concept of transformation based on the survey results. Subsequently, from the perspective of exchange characteristics, the literature concerning data exchange was categorized into five typical scenarios: model exchange, model transformation, model generation, code generation, and document generation. For each scenario, the research findings on relevant exchange methods were presented, and detailed descriptions of the advantages and disadvantages of some methods were provided. The results of this review can be used to guide the selection and improvement of data exchange methods.
Numerical Simulation Analysis of the Flow Control Effect of Harbor Seal Whisker Model Under Different Angles of Attack
Authors: Wu Yaer , Li Dongfeng , Chen Nan , Rong Qinhuan , Mo Kui , Bai Fai , Hu Jianyong , Zhang Heshun , Wei Ziyang , Xuan Zhentao 
Published: January 2025

Abstract
This article takes the wake field of the spotted seal whisker model as the main research object, and constructs a viscosity model through Fluent and performs simulation calculations. In order to reveal the control effect of its complex structure on the flow around a bluff body, a comparison is made between the spotted seal whisker model and the model under different angles of attack. The flow fields of the cylinder and elliptical cylinder models were analyzed around the flow characteristics, and it was found that the seal whisker model suppressed the generation of vortices in the wake field, and as the angle of attack increased, the bluff body flow overcomes the flow caused by the shape of the seal whisker.
Study of Health Degree Assessment and Prediction for Axle Counter Equipment in Urban Rail Transit
Authors: Yuan Jianjun , Chu Pengzi , Huang Chunye , Shen Zhe , Yu Yi 
Published: January 2025

Abstract
Axle counter equipment is a key component in urban rail transit signal systems, and its stability has a great impact on safety and operation efficiency. In this paper, we pay attention to the assessment and prediction methods of the health degree for axle counter equipment in urban rail transit and the corresponding maintenance suggestions. Mainly, two prediction methods, the GM (1, 1) algorithm and the long short-term memory (LSTM) network, are used to compare the prediction effect of health degree for axle counter equipment. Based on enough historical information, the LSTM network can obtain more accurate prediction results with less data input.