bluuebunny/crossref_metadata_2025_split huggingface dataset:
Temperature Control for Mass Concrete of Bridge Cap in Summer Construction
Authors: Wu Y , Ding QJ , zhang HL , Hu FG , Dai CE , Zhang ZQ , zhang SY 
Published: April 2023

Abstract
In order to realize the accurate calculation of the temperature field of concrete hydration heat, the paper takes the concrete hydration heat temperature field of the pile cap of Liexi Bridge as a case for simulation analysis. Firstly, a three-dimensional finite element model of concrete hydration heat temperature field is established; Then, the temperature field of the hydration heat of the concrete cushion cap of the Liexi Bridge is simulated. The experimental results show that the maximum actual measured temperature of the core point of concrete hydration heat temperature is 63.1 °C, and the corresponding calculated temperature is 62.2 °C. The maximum actual measured temperature of the surface point is 54.8 °C, and the corresponding calculated temperature is 53.8 °C. The maximum temperature difference between inside and outside is 18.9 °C, and the corresponding calculated temperature is 13.4 °C. The research results show that the calculation model has high accuracy
Research on Fault Diagnosis Method of Intelligent Production Line Based on Petri Net and SDG Model
Authors: Gu A , Gao Y , Pan C , Yu M , Zhu R 
Published: April 2023

Abstract
Due to its complex structure and functionality, intelligent production line has a higher possibility of failure during operation. When failures occur, the monitoring and control functions of the intelligent production line will be impacted, leading to a system failure. Therefore, when monitoring the security of the intelligent production line and executing the security policy, it is necessary to consider not only the functional safety and information security of the information physical system, but also the dynamic process of fault propagation and evolution in the same level or between different levels of the intelligent production line, so as to provide more accurate security protection for the intelligent production line. To address the above problems, this paper proposes a Petri net-based fault diagnosis method and SDG-based fault tracing method to accurately locate the faults that occur during the operation of intelligent production line.The experiment proves that the method proposed in this paper is accurate and has reference significance for the monitoring and operation and maintenance of intelligent production line.
Power System Stability Estimation Scheme Based on Big Data
Authors: Zhang J 
Published: April 2023

Abstract
Aiming at the poor convergence of power flow calculation and the difficulty in location of the power system operation, this paper proposes a fast parallel calculation scheme for power system stability assessment based on big data technology. Through the analysis and research of Newton method which is sensitive to the initial value selection in the actual calculation of regional power flow, an approach for selecting the optimal initial value is proposed by genetic algorithm. Then, by the state sampling method and Monte Carlo parallel simulation, the coarse granularity algorithm under the message passing programming model is designed. The experimental analysis adopts the improved method to test the data in IEEE 9 system, actual environment, the automatic power flow adjustment. The results show that our scheme can achieve high parallel efficiency and acceleration ratio, which improves the calculation ability and accuracy of power flow and reliability evaluation of large-scale power systems.
Energy Saving Transmission Line Evaluation Based on Mechanical and Electrical Characteristics Analysis
Authors: Li C , Ma J , Jiang XH , Zhang ZY 
Published: April 2023

Abstract
In order to improve the safety and reliability of transmission lines in certain areas, an energy-saving line selection scheme based on mechanical and electrical characteristics analysis is proposed. We determine the structural technical parameters and system conditions of the new energy-saving conductor through specific cases. In the mechanical characteristics, the dynamic stress, safety factor and the maximum sag of four different types of conductors during galloping are compared; In electrical characteristics, the current carrying capacity and resistance loss are mainly calculated. Finally, the economic and social benefits of energy-saving conductor are analyzed in combination with the specific project situation, and the specific precautions in the conductor selection process are analyzed, which provides a technical reference for the design, selection and application of energy-saving conductor.
Locating and Sizing Planning of Electric Vehicle Battery-swapping Stations Considering User Path Selection
Authors: Shi Tengyuan , Shen Jin 
Published: April 2023

Abstract
According to the characteristics of an electric vehicle’s charging mode and considering the user path selection, a two-level programming optimization model of EV battery-swapping station locating, and sizing planning is established. The daily power exchange demand load is predicted, and the service area of the battery-swapping station is divided by the Voronoi diagram. The upper model optimizes the location, and the optimized number of battery-swapping stations is passed to the lower model to realize the constant volume optimization. Finally, the feasibility and rationality of the optimization model of EV battery-swapping station locating and sizing planning are verified by a demonstration planning area in Shanghai.
Research on key evaluation indexes of grid-connected characteristics of new energy based on historical data
Authors: Liu Zhili , Jiang Yanteng , Sun Junjie , Wang Chao , Jing Lantao 
Published: April 2023

Abstract
To fully excavate the key information of the historical data of the power grid which has been sleeping for a long time, grasp the operation characteristics of the power grid, and further solve the problem of new energy generation in the power grid, the grid-connected characteristics of new energy sources in Liaoning province are studied based on the actual wind and solar power load data. Taking the actual data of Liaoning province as an example, the above analysis is carried out, the grid load of PV and wind power is classified and compared, and the typical load curve is drawn. The results show that the key evaluation index system can be easily calculated, and the results can be used as a reference for the scheduling and planning of a regional new energy system.
Numerical simulation of the breakdown process of dielectric in high voltage pulse discharge
Authors: Guo Gang , Li Hongda , Gao Mingcheng , Che Long 
Published: April 2023

Abstract
In order to study the breakdown process of the insulating medium of the needle-needle electrode under the action of high-voltage pulse discharge, the HV-LAB simulation software was used to study the discharge channel formed in the three kinds of insulating media, namely water, transformer oil, and air, and the three-dimensional model of the discharge breakdown insulating medium was designed. The process of discharge channel expansion, voltage, current, power, and energy loss in the discharge channel is analyzed. The results show that in the process of high-voltage pulse discharge breakdown of the insulating medium, the formation time of the discharge channel of transformer oil is long, the energy is accumulated, the number of discharge channels is less, the horizontal isopotential lines are dense, and the energy is concentrated. Under the same discharge conditions, the energy consumption of transformer oil in the process of high-voltage pulse discharge is the least. The results of this study can provide a reference for the selection of high-voltage crushing insulation medium.
Research on Evaluation Method of Cable Line Operation State Based on Partial Discharge Signal Characteristics
Authors: Che Renfei , Zheng Can 
Published: April 2023

Abstract
To accurately evaluate the operation status of cable lines, an evaluation method based on the characteristics of partial discharge (PD) signals is proposed. In this method, the operation state of the cable line is divided into four levels, amount of PD and energy of PD in online monitoring data of the cable line are utilized, the development trend of cable insulation deterioration is considered, cable line state evaluation indexes are firstly established, then the state membership of each evaluation index is calculated by utilizing a membership function, proper operation operators are selected, Finally, the evaluation system of the operation state of the cable line based on the characteristics of partial discharge signals is constructed. The correctness and effectiveness of the proposed evaluation method are verified by setting three operating conditions of cable lines, which provides a decision-making reference for the maintenance of cable lines.
A Novel Compound Fault Recovery and Control Techniques in Electric Distribution Network
Authors: Mao Wandeng , Yuan Shaoguang , Tian Yangyang , Guo Zhimin , Liu Hao , Wang Lei 
Published: April 2023

Abstract
When the distribution network is affected by natural disasters or deliberately damaged, failure may cause a large area power outage, which will seriously impact the national economy, social stability, people’s normal life, etc. This paper proposes a composite fault recovery method for the distribution networks based on the maximum-flow method. A service flow model, an information link recovery model, and a multi-objective optimization model are established to effectively solve communication power’s composite fault recovery problem in the distribution network.
Research on Distributed Measurement and Control System Based on FlexRay Bus
Authors: Zhao Xiaodong , Yang Fan , Li Wantong , Li Haiyuan 
Published: April 2023

Abstract
With the purpose of the design problem of electromagnetic launch distributed measurement and control system, this paper proposes a design method of scalable large-scale distributed interconnected measurement and control system based on FlexRay bus. The task execution time deviation of each node in the distributed system, including phase deviation and frequency deviation, is reduced by using the macro tick generation process and clock synchronization process to achieve task synchronization in the distributed system. The synchronization of timing generation is realized based on the universal clock technology. When the timing interval is zero, the pulse power units are guaranteed to be close to the ideal full synchronization, thus ensuring that the released energy during transmission is close to the design value. In the state of adjustable timing, when the pulse power supply module conducts pulse discharge, the trigger discharge times of the modules are set according to the load needs. The flat top, sawtooth, and other characteristic current waveforms are adjusted accurately. At the same time, a combined multi-level protection structure based on hardware and software is realized. The verification results show that the distributed electromagnetic launch measurement and control system implemented in this paper can meet the high efficiency, fast and continuous launch target.
Research of Brake by Wire System
Authors: Hu Chenhua , Pan Guangyong , Kong Linzhan , Yu Junhua 
Published: April 2023

Abstract
Brake by wire technology is the key technology of automobile braking systems to adapt to automobile intelligence and electrification. This article introduces two brakes by wire technologies: the electro-hydraulic brake system (EHB) and electro-mechanical brake system (EMB), and introduces their working principle, advantages, and disadvantages. Then, this article proposes a new scheme for a multiple-pump drive EHB system, which provides a lightweight and affordable wire-controlled braking system solution for new energy vehicles.
Backstepping Sliding Mode Method for Attitude Stabilization Control of Small Satellites
Authors: Shan Yihe , Xia Lurui , Li Sen 
Published: April 2023

Abstract
To address the problem that the attitude of a rigid satellite in orbit is susceptible to external disturbing moments, a control method based on the backstepping sliding mode method is proposed, which has strong robustness and anti-disturbance capability. Firstly, the coupling term in the mathematical model of satellite attitude is eliminated by using the backstepping method, secondly, the sliding mode control law is designed to reduce the sensitivity of the system to the external disturbance moment change and accelerate the response speed of the system, and the stability of the system is proved by using Lyapunov stability theory. Finally, the effectiveness and superiority of the rigid satellite attitude control based on the backstepping sliding mode method are verified by simulation.
Improved PID Controller Based on BP Neural Network
Authors: Li Jialin , Peng Tao , Zhang Shen , Liu Chang 
Published: April 2023

Abstract
The traditional PID controller is widely used to improve the stability of the system because of its simplicity and convenience. However, the disadvantage of the control method is that the control parameters are difficult to adjust in real-time, and it can not adapt to the needs of variable control targets in different states, affecting the controller’s practical application effect. Therefore, using the idea of hierarchical learning self-adjusting control, this paper optimizes the traditional PID controller based on BP neural network. The experimental results show that the controller can automatically adjust the control parameters, improve the control accuracy and achieve rapid response.
Power Supply Planning Based on Simulated Annealing Algorithm
Authors: Zhou Xiangyi , Liu Hao , Wang Yanan , Wang Yongli , Zhu Jinrong 
Published: April 2023

Abstract
As the global shortage of fossil energy continues to increase, people’s demand for new energy increasingly focuses on the optimal design of power supply planning. The simulated annealing algorithm and the micro-incremental rate model are used to reasonably discuss the optimization goal. To obtain a correct economic evaluation, the funds at different times were converted into funds at the same time and compared. Under the condition, the peak load of the system increases by 30%, the type and number of additional units are planned, and a set of optimal solutions is obtained through multiple calculations using the simulated annealing algorithm. To obtain the optimal load distribution scheme of each unit in the existing system on the 12th and 24th hours of a typical day, the equal incremental rate model is used to solve the problem, and the simulated annealing algorithm is used to improve the accuracy of the data, and finally, the optimization of the power planning scheme is realized.
Study on anti-vibration optimization design of transmission line section with large span in Inner Mongolia
Authors: Zhao Bin , Wang Jian , Huang Guo , Gu Jian , Zou He , Yang Zhi 
Published: April 2023

Abstract
Affected by the cold wave process, eastern Inner Mongolia is easy to suffer from both of persistent low temperature and strong wind weather, which causes the dynamic bending strain of overhead conductors’ aeolian vibration to approach or even exceed the safety threshold frequently. The end position of the existing conductor and the conventional vibration damper are in high-intensity working state for a long time, which seriously threatens the operation safety of Inner Mongolia East power grid. In this paper, aiming at the optimization design of anti vibration scheme of large span line section in eastern Mongolia, taking the 500kV Kesha #1 and #2 line #119 ~ 120 line section with a span of 1043m as an example, according to the existing anti vibration design standards of large span line section, the effect evaluation test optimization research of anti vibration scheme is carried out, and the anti vibration scheme more suitable for large span line section in low temperature and strong wind area in eastern Mongolia is given. The recommended anti vibration scheme is obtained through simulation test, analysis and Optimization on the indoor test file, which meets the relevant technical requirements of anti vibration. It is of great significance to avoid fatal defects in large span line sections of transmission lines and ensure the long-term safe and stable operation of regional power grid.
Assessing the land-use harmonization (LUH) 2 dataset in Central Asia for regional climate model projection
Authors: Qiu Yuan , Feng Jinming , Yan Zhongwei , Wang Jun 
Published: April 2023

Abstract
Although the land-use harmonization (LUH) datasets have been widely applied in regional climate model (RCM) projections for investigating the role of the land-use forcing in future climate changes, few studies have thoroughly assessed them on local scale, which may bring large uncertainties in the resultant climate information for designing adaption and mitigation measures of climate change. The authors use a local land-use dataset (referred to as Li-LU) as the benchmark to assess the latest version of the LUH datasets, LUH2, in Central Asia (CA) which has undergone extensive land-use changes (LUCs) and might undergo extensive LUCs in the future. The results show that LUH2 has large biases in depicting the historical land-use states in CA for 1995–2015. For instance, the area of grassland (cropland) in LUH2 is about 1.4–1.5 (0.4–0.5) times of that of Li-LU. Moreover, the future LUCs predicted by LUH2 for 2045 (relative to 2005) are much smaller than those of Li-LU and these two datasets generally have opposite signals in changes. In addition, the predicted LUCs of LUH2 do not follow the causal mechanisms [the causal connections between the key drivers (e.g. population, economy, and environment) and land use] behind the LUCs in the past. If the future scenario of LUH2 is used for RCM projection in CA with the historical land-use information from Li-LU, the simulation results could be misleading for understanding the impacts of LUCs on future climate changes there. This study suggests that the LUH datasets should be carefully assessed before using them for regional studies and provides practical notes for selecting the appropriate land-use dataset for RCM projections in other areas around the world.
Photorefractive four-wave mixing cannot be treated perturbatively. Revisiting the undepleted-pump approximation
Authors: de Valcárcel Germán J , Silva Fernando , Esteban-Martín Adolfo , Roldán Eugenio 
Published: April 2023

Abstract
We theoretically consider photorefractive degenerate four-wave mixing oscillators and show that, for this particular system, the linear stability analysis technique leads to incorrect results. The reason for this astonishing failure lies in the unphysical predictions of the undepleted-pump approximation, which appear naturally during the linearization process of the full model. As a consequence, photorefractive four-wave mixing does not seem to permit a perturbative treatment that allows the derivation of mean-field models, and one is forced to use the full model in order to make sensible predictions.
Winner and losers: examining biotic interactions in forbs and grasses in response to changes in water and temperature in a semi-arid grassland
Authors: Akin-Fajiye Morodoluwa , Ploughe Laura W , Greenall Amber , Fraser Lauchlan H 
Published: April 2023

AbstractWarming and changing water amount can alter the outcome of biotic interactions in native and exotic plants between facilitation and competition. Exotic plants may adapt better to changing environmental conditions, such that they may compete better than native plants. We conducted competition trials for four plant species, two exotic forbs (Centaurea stoebe and Linaria vulgaris) and two grasses (exotic Poa compressa and native Pseudoroegneria spicata), commonly found in Southern interior British Columbia. We compared the effects of warming and changing water on target plant shoot and root biomass, and on pair-wise competitive interactions among all four species. We quantified interactions using the Relative Interaction Intensity index, which has values from −1 (complete competition) to +1 (complete facilitation).C. stoebe biomass was highest under low water and no competition. Facilitation of C. stoebe was found under high water and low temperatures but shifted to competition under low water and/or warming. Competition in L. vulgaris decreased due to reduced water and increased due to warming. Grasses were less competitively suppressed by warming but more competitively suppressed by reduced water input. The response of exotic plants to climate change can differ by plant species, moving in opposite directions for both forbs, but grasses appear to respond similarly. This has consequences for grasses and exotic plants in semi-arid grasslands.
Long-term safety and efficacy of mogamulizumab (anti-CCR4) for treating virus-associated myelopathy
Authors: Sato Tomoo , Yamauchi Junji , Yagishita Naoko , Araya Natsumi , Takao Naoki , Ohta Yuki , Inoue Eisuke , Takahashi Masaki , Yamagishi Makoto , Suzuki Yutaka , Uchimaru Kaoru , Matsumoto Naoki , Hasegawa Yasuhiro , Yamano Yoshihisa 
Published: April 2023

Abstract
Some carriers of human T-cell leukaemia virus type 1 (HTLV-1), a retrovirus that primarily infects CD4+ T cells and causes lifelong infection, develop HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Current treatments for HAM/TSP are insufficient with problematic long-term side effects. This study evaluated the long-term safety and efficacy of the anti-CCR4 antibody mogamulizumab in patients with HAM/TSP over a 4-year period.
We conducted an open-label, extended long-term study (UMIN trial number: UMIN000019942) of a phase 1–2a trial with mogamulizumab for HAM/TSP (UMIN000012655). The study participants were patients with corticosteroid-resistant HAM/TSP who could walk 10 m with or without assistive tools. Mogamulizumab was administered at 0.01, 0.03, 0.1 or 0.3 mg/kg at intervals of ≥8 weeks (0.01 and 0.03 mg/kg) or ≥12 weeks (0.1 and 0.3 mg/kg). HTLV-1 proviral load, CSF inflammatory markers and clinical symptoms were summarized by descriptive statistics. Missing observations were imputed using the last-observation-carried-forward method. As a post hoc analysis, we evaluated the therapeutic effect of mogamulizumab on gait function by comparing it with contemporary control data from a HAM/TSP patient registry.
Of the 21 participants in the phase 1–2a, 18 (86%) enrolled in the long-term study and 15 (71%) continued repeated doses of mogamulizumab for 4 years. The median dose was 0.1 mg/kg after 4 years. Seventeen of 21 participants (81%) experienced grade 1–2 skin-related adverse events. Observed grade 3 drug-related adverse effects included three cases of lymphopenia and one case each of microscopic polyangiitis, elevated levels of aspartate aminotransferase, and neutropenia. Four of 21 participants (19%) developed neutralizing antibodies. After 4 years, the peripheral blood proviral load and the number of infected cells in CSF decreased by 60.7% and 66.3%, respectively. Neopterin and CXCL10 CSF concentrations decreased by 37.0% and 31.0%, respectively. Among the 18 participants, spasticity and Osame Motor Disability Score (OMDS) improved in 17 (94%) and four (22%), respectively. However, 10 m walking time worsened by 7.3% on average. Comparison with the contemporary control group demonstrated that mogamulizumab inhibited OMDS progression (P = 0.02).
The results of the study suggest that mogamulizumab has long-term safety and inhibitory effects on lower limb motor disability progression in corticosteroid-treated patients with HAM/TSP. This will provide a basis for the application of mogamulizumab in HAM/TSP treatment.