bluuebunny/crossref_metadata_2025_split huggingface dataset:
A new AC/DC converter with three-bus output and controllable DC link short-circuit current
Authors: Jiang Runhui , Wu Weimin 
Published: August 2024

Abstract
In the AC/DC hybrid microgrid, single-phase AC/DC converters play a vital role in maintaining the energy balance of the AC grid and DC grid. The industry usually uses large electrolytic capacitors to absorb the secondary ripple power. However, it produces a larger short-circuit current. This paper proposes a three-bus output AC/DC converter that can limit the short-circuit current. The feasibility of steady-state operation and the ability of transient processes to limit short-circuit current was verified.
Study on preparation and performance of cable trench fire separation material for converter station (transforming station)
Authors: Wang Yin , Wang Yu , Yang Dedong , Fu Guanggang , Zheng Chong , Kong Fanfang , Nie Jingkai , Han Yu , Ji Jun 
Published: August 2024

Abstract
Cable trenches and oil-filled equipment areas are prone to electric fires, damaging the power equipment. Fire separation is an effective method to prevent the spread of cable fire and reduce the damage to the power grid. In this paper, the high-temperature resistance and fire safety of new low-carbon inorganic building materials used in transforming stations is tested and evaluated. It is found that the fire separation of floating bead composite geopolymer can meet the requirement that the duration of fire resistance is not less than 3 hours with an electric fire heating curve used in the substation fire protection improvement project. The pore structure characterization and thermogravimetric analysis indicate that the fire-resistive mechanism of the material is that the decomposition of a large amount of dehydrated ettringite at high temperature is the main reason for reducing the unexposed surface temperature rise of the material.
Simulation calculation of the cooling process of phase change cold storage devices in rail vehicles under natural convection conditions
Authors: Liu Chao , Li Mengmeng , Wang Hongyu , Tan Xinhuan , Zhang Lichun 
Published: August 2024

Abstract
Through simulation calculations, the cooling process of the phase change cold storage device in the carriage of rail vehicles under natural convection conditions was analyzed. The total cooling capacity and cooling time of the round tubes were obtained. Based on the calculation results, it was concluded that round tubes are suitable for use as phase change cold storage devices in emergencies inside the carriage under natural convection conditions. A preliminary structural design for the device was proposed, and the feasibility of the device was analyzed through a comparison of different surface convective heat transfer coefficients.
Design and research of energy recovery devices for new energy vehicles
Authors: Long Shihuag , Wu Bo , Cui Longhui , Zhang Wei , Li Yuan , Hu Weijun 
Published: August 2024

Abstract
China is a large automobile consumer. With the continuous progress of science and technology, a variety of new energy vehicles have emerged, and the endurance problem of new energy vehicles has become more and more prominent. In this paper, a new energy vehicle energy recovery device is designed and studied, which makes full use of the inertia of the power battery when the car is running, recovers its energy, converts the kinetic energy of the power battery into electric energy, and transmits the energy to the power battery. In the process of energy recovery, an energy storage device is designed to fully improve the efficiency of energy recovery. It can increase the endurance capacity of new energy vehicles to 25%. The design can be widely used, such as household new energy cars, SUVs, large and medium-sized buses, etc. The design and promotion will certainly pave the way for the popularization and development of electric vehicles.
Development and application of distribution network multi-state management and control system
Authors: Zhang Xiaoyan , Fu Ming , Liang Jiaben , Zhao Jingtao 
Published: August 2024

Abstract
Aiming at the complex and changeable operating state of the new distribution network, flexible aggregation of distributed resources and intricate topology structure, this paper studies the new distribution network management and control methods of three states, including operating state, alert state and fault state, proposes a collaborative control strategy of energy complementarity optimization, and develops a multi-state control system of distribution network. The intelligent management and control mode under “operating status-alert state-fault state” of the distribution network is proposed, which can improve multi-regional energy utilization and power supply reliability in different operating states.
FVM-CFD coupled method for 3d hydraulic simulation on a long-corridor air cushion surge chamber in hydropower plant
Authors: Tian Hua , Liu Daohua , Chen Qianxun , Xia Yong , Liu Yue , Fang Haoyu , Lu Jianwei , Liu Deyou , Zhou Ling 
Published: August 2024

Abstract
A 1D-3D coupled model combining Finite Volume Method (FVM) and 3D Computational Fluid Dynamics (CFD) is firstly developed to investigate 3D dynamic flow regime of air chamber and the influence of different corridor lengths and widths on the 3D transverse unsteady flow in the chamber, which are rarely explored, in particular under the high driving pressure conditions of hydropower plants. The FVM and CFD are separately used for the pipeline section and the air cushion surge chamber, while real-time computation data is exchanged at the FVM-CFD coupled interface. Moreover, the effect of unsteady friction was considered in the water hammer simulations. Experimental results demonstrate that the FVM-CFD coupled method can accurately reproduce the experimental data. Based on the local 3D simulations for different size air chambers, a common feature is observed that spouting geyser arises near the inlet of air chamber during the load rejection initial stage. Results show that when the chamber corridor is longer and narrower under stable conditions and constant gas volume, the peak pressure would be higher and the water level fluctuation becomes more significant, while the wave shape is more regular and the surging period along the chamber long direction is longer. Meanwhile, the water level change exhibits a certain hysteresis in the “spouting geyser area” where the water level fluctuation is minimal and the surging phenomenon occurs less frequently. The reversed results can be observed when the chamber is shorter and wider, the water level fluctuation is more chaotic and the wave shape is more irregular, while the period of surging along the chamber direction is shorter. The water level change in the “spouting geyser area” is more violent, while the water level fluctuation at the chamber inlet is greater and the frequency of surging phenomenon is higher, and the water level fluctuation curves are more regular and smoother. The fluctuation law of the average temperature and the lowest temperature of the chamber water surface are consistent with the pressure fluctuation law. Importantly, the low temperatures (below zero) are possible if the air chamber corridor is too narrow or too short.
Research on heat dissipation performance of electric vehicle brake disc based on multi-field coupling
Authors: Sun Xiao , Ling He , Han Jinliang , Zou Lin 
Published: August 2024

Abstract
The thermodynamic research method of brake discs based on fluid-thermosolid multi-field coupling has a certain relationship with ventilation conditions. To study the influence of semi-closed wheels of electric vehicles on the heat dissipation performance of automobile ventilation discs, the fluid-heat-solid coupling method was adopted, and the coupling platform of ANSYS system was used to realize the complete coupling operation of transient fluid-heat-solid, and the heat dissipation process of ventilation disc of electric vehicles with semi-closed wheels was analyzed under emergency braking conditions. The temperature distribution, flow field characteristics, and stress distribution of brake discs under two different ventilation modes were compared, and the changing rules and distribution characteristics of temperature, flow field, and stress were summarized. Compared with normal ventilation conditions, the calculated values of transient temperature and stress at the corresponding part of the ventilated brake disc increased significantly under weak ventilation conditions.
Multi-objective optimization design for the carcass of marine flexible pipes based on BP neural network and genetic algorithm
Authors: Liao Shuting , Sun Li , Wang Hongfu , Zhang Mingyu 
Published: August 2024

Abstract
The collapse of the carcass is a prominent failure mode in marine flexible pipes. This paper explores the multi-objective optimization design of the carcass layer, focusing on pivotal design variables such as the thickness of the steel strip and the height-thickness ratio of the profile. The objective functions encompass the unit length weight and critical collapse value. The optimization process integrates the BP neural network with the Non-dominated Sorting Genetic Algorithm-II (NSGA-II). Furthermore, the improved minimum distance selection method is applied to extract optimal results from the Pareto front. The insights obtained from this paper hold significant potential to contribute to engineering applications, particularly in advancing the design methodologies for carcass collapse resistance.
Design of grating encoder displacement measurement system
Authors: Lin Yanqing , Ji Chong , Zhang Haiyang , Yang Jiaxu 
Published: August 2024

Abstract
In this paper, by combining TMS320F28335DSP and the grating encoder, the 4× frequency count of the grating encoder displacement measurement is realized, which improves the accuracy of the displacement measurement. Moreover, the human-computer interaction with the developed host computer is carried out through RS232 serial communication to display the displacement. At the same time, the system realizes the positive and negative rotation of displacement measurement by judging the increase and decrease of the pulse signal. Specifically, firstly, two pulse signals output by the grating encoder are preprocessed, and the analog signal is converted to the digital signal. The DSP microprocessor is used for pulse counting, direction recognition, and displacement correlation calculation, and the human-computer interaction is carried out through serial communication. The experimental results show that the method has stable data transmission, accurate measurement value, and improved accuracy of encoder displacement measurement.
Affordance-based performance scale-up associated with structural parameters for product design
Authors: Gao Xiangyu , Zhang Shuyou , Qiu Lemiao , Cheng Changlong , Wang Yang , Zhang Peng 
Published: August 2024

Abstract
Product scale-up design is critical in developing many of today’s products. The traditional scale-up design methods (TSDM) use an analytical approach or empirical similarity method, which may not meet the requirement of dimensionless parameters when designing complex products. We develop an affordance-based scale-up method for the complex product design. Requirements-performance and performance-structure affordance constraints are constructed to connect the requirements and the structure parts. Then, the main parts are extracted based on the affordance matrix, and the coupling matrix is constructed. Analyzing the structural characteristic model, the parameters are extracted for the three matrices used for the parameters design. Take an injection molding machine as an example, and the example demonstrates the feasibility and potential industrial impact on product development.
Optimized design of high-resolution zero encoding for digital micrometers
Authors: Ye Guoyong , Zhang Yong , Sun Qianxiao , Xiao Zhenyu 
Published: August 2024

Abstract
Precision digital micrometers are promising sensors for micro-displacement measurements in precision manufacturing and metrology instruments. In this paper, the structure of the digital micrometer and the grating zero generation are optimized and designed. Firstly, the zero grating is modeled by introducing the basic principles of the digital micrometer. Then the constraints of the optimization process are defined. Finally, MATLAB simulations are performed. The results show that the designed high-resolution reference signal precision digital micrometer meets the theoretical requirements and is very suitable for application in precision measurement.
Design and optimization of planetary wheel systems for formula racing cars
Authors: Sun Yirui , Bing Xinyu 
Published: August 2024

Abstract
Based on the transmission system of the electric formula racing car, this article introduces the design of a new NW planetary gear train and the simulation ideas of the entire system. This study greatly ensures the accuracy of the analysis results by outputting the transmission power of the entire system and then using software to accurately select multiple parameters of each pair of gears. Further research was conducted on tooth direction modification to find the most accurate modification scheme suitable for the planetary gear train. This method has been applied to the Chinese Student Electric Formula E02 racing car, achieving the fastest speed and best stability in many competitions.
Zinc coating and its application in radar
Authors: Liang Yuanjun 
Published: August 2024

Abstract
This paper introduces the common types of zinc coating, corrosion mechanism, application precautions, and key points of zinc coatings in radar anti-corrosion according to the characteristics of radar structure components, including hot-dip galvanizing, thermal spraying zinc, electroplated zinc, powder zinc infiltration, zinc-chromium coating, and zinc coating.
Influence of new wire structure on AC loss of high-temperature superconducting cables
Authors: Ma Minghao , Ma Yonghu 
Published: August 2024

Abstract
The different structures of wire in high-temperature superconductors (HTS) can affect the magnetic field distribution of the tapes, thereby influencing the AC losses of the tapes. In this paper, a cylindrical HTS cable model of different HTS tapes was established using the finite element analysis software COMSOL Multiphysics, and the AC losses of different superconducting cables were calculated based on the H equation. Through data collection and result analysis, the effectiveness, accuracy, and rationality of the simulation calculations were verified.
Multiferroic properties of NiFe2O4-Ba0.7Ca0.3TiO3 nanocomposites
Authors: Giang Tran Thi Ha , Thi Viet Chinh Nguyen , Lam Dao Son , Linh Dinh Chi , Nam Pham Hong , Bach Ta Ngoc , Long Nguyen The , Manh Do Hung , Dung Dang Duc , Toan Huynh Ngoc , Poddubnaya N N , Thanh Tran Dang 
Published: August 2024

Abstract
In this report, we present results on the multiferroic properties of four nanocomposite samples of NiFe2O4-Ba0.7Ca0.3TiO3 (NFO/BCTO), which were fabricated through combinations of high-energy ball milling, heat treatment, and spark plasma sintering techniques. Structural analyses revealed that these samples simultaneously contain two phases of nano-sized NiFe2O4 (NFO) and Ba0.7Ca0.3TiO3 (BCTO) crystals. The addition of NFO into the BCTO-host did not alter the crystal structure but significantly improved the multiferroic characteristics compared to pure BCTO. Furthermore, variations in saturation magnetization (M
s) and coercivity (H
c) were investigated as a function of temperature. The results showed that Ms increased gradually with the concentration of NFO. In terms of temperature dependence, M
s(T) data deviated from the Bloch’s law with an exponent coefficient α changing in the range of 1.8–1.9, decreasing gradually as the NFO concentration increased. Meanwhile, H
c decreased gradually as the NFO concentration increased and followed the Kneller’s law in terms of temperature dependence.
Development of a text mining algorithm for identifying adverse drug reactions in electronic health records
Authors: van de Burgt Britt W M , Wasylewicz Arthur T M , Dullemond Bjorn , Jessurun Naomi T , Grouls Rene J E , Bouwman R Arthur , Korsten Erik H M , Egberts Toine C G 
Published: August 2024

Abstract

Objective
Adverse drug reactions (ADRs) are a significant healthcare concern. They are often documented as free text in electronic health records (EHRs), making them challenging to use in clinical decision support systems (CDSS). The study aimed to develop a text mining algorithm to identify ADRs in free text of Dutch EHRs.

Materials and Methods
In Phase I, our previously developed CDSS algorithm was recoded and improved upon with the same relatively large dataset of 35 000 notes (Step A), using R to identify possible ADRs with Medical Dictionary for Regulatory Activities (MedDRA) terms and the related Systematized Nomenclature of Medicine Clinical Terms (SNOMED-CT) (Step B). In Phase II, 6 existing text-mining R-scripts were used to detect and present unique ADRs, and positive predictive value (PPV) and sensitivity were observed.

Results
In Phase IA, the recoded algorithm performed better than the previously developed CDSS algorithm, resulting in a PPV of 13% and a sensitivity of 93%. For The sensitivity for serious ADRs was 95%. The algorithm identified 58 additional possible ADRs. In Phase IB, the algorithm achieved a PPV of 10%, a sensitivity of 86%, and an F-measure of 0.18. In Phase II, four R-scripts enhanced the sensitivity and PPV of the algorithm, resulting in a PPV of 70%, a sensitivity of 73%, an F-measure of 0.71, and a 63% sensitivity for serious ADRs.

Discussion and Conclusion
The recoded Dutch algorithm effectively identifies ADRs from free-text Dutch EHRs using R-scripts and MedDRA/SNOMED-CT. The study details its limitations, highlighting the algorithm's potential and significant improvements.
Long non-coding RNAs involved in Drosophila development and regeneration
Authors: Camilleri-Robles Carlos , Amador Raziel , Tiebe Marcel , Teleman Aurelio A , Serras Florenci , Guigó Roderic , Corominas Montserrat 
Published: August 2024

Abstract
The discovery of functional long non-coding RNAs (lncRNAs) changed their initial concept as transcriptional noise. LncRNAs have been identified as regulators of multiple biological processes, including chromatin structure, gene expression, splicing, mRNA degradation, and translation. However, functional studies of lncRNAs are hindered by the usual lack of phenotypes upon deletion or inhibition. Here, we used Drosophila imaginal discs as a model system to identify lncRNAs involved in development and regeneration. We examined a subset of lncRNAs expressed in the wing, leg, and eye disc development. Additionally, we analyzed transcriptomic data from regenerating wing discs to profile the expression pattern of lncRNAs during tissue repair. We focused on the lncRNA CR40469, which is upregulated during regeneration. We generated CR40469 mutant flies that developed normally but showed impaired wing regeneration upon cell death induction. The ability of these mutants to regenerate was restored by the ectopic expression of CR40469. Furthermore, we found that the lncRNA CR34335 has a high degree of sequence similarity with CR40469 and can partially compensate for its function during regeneration in the absence of CR40469. Our findings point to a potential role of the lncRNA CR40469 in trans during the response to damage in the wing imaginal disc.
Associations between per- and polyfluoroalkyl substance exposures and metabolic dysfunction associated steatotic liver disease (MASLD) in adult National Health and Nutrition Examination Survey 2017 to 2018
Authors: Samala Niharika , Kulkarni Manjiri , Lele Rachana S , Gripshover Tyler C , Lynn Wise Jaime , Rai Shesh N , Cave Matthew C 
Published: August 2024

Abstract
Per- and polyfluoroalkyl substances (PFAS) are persistent organic pollutants previously associated with elevated liver enzymes in human cohorts and steatotic liver disease in animal models. We aimed to evaluate the associations between PFAS exposures, and liver enzymes and vibration controlled transient elastography (VCTE) biomarkers of metabolic dysfunction associated steatotic liver disease (MASLD) in adult National Health and Nutrition Examination Survey (NHANES) 2017 to 2018. VCTE was determined by FibroScan. Serum PFAS (n = 14), measured by mass spectrometry, were analyzed individually and by principal component (PC). Univariate and multivariable associations were determined between PFAS exposures and liver disease outcome variables: alanine aminotransferase (ALT), controlled attenuation parameter (CAP), liver stiffness measurement (LSM), FibroScan-based Score (FAST), using R. About 1,400 participants including 50% women with a mean age of 48 ± 19 years and a mean BMI of 29 ± 7 kg/m2 were analyzed. Four PFAS clustered to PC1, whereas 3 PFAS clustered to PC2. PC1 was significantly associated with ALT (β = 0.028), CAP (β = 0.041), LSM (β = 0.025), and FAST (β = 0.198) in univariate analysis. Individual PFAS exposures were oftentimes inversely associated with these measurements in multivariate analysis. In adult NHANES 2017–2018, PFAS may not be a significant burden for MASLD, because of the inconsistent associations between the environmental PFAS exposures and biomarkers of liver steatosis, inflammation, and fibrosis. More data are required to better understand the relationships between PFAS exposures and liver disease.
A Brief Intervention on Alcohol Use Disorder Is Associated With Treatment Access for Inpatients With Alcohol-associated Liver Disease
Authors: Twohig Patrick A. , Balasanova Alena , Cooper Lauren , Le Michelle , Khoury Nathalie , Manatsathit Wuittporn , Olivera Marco , Peeraphatdit Thoetchai Bee 
Published: August 2024

Background
Alcohol-associated liver disease (ALD) is the most common indication for liver transplantation in the United States. Alcohol use disorder (AUD) treatment is recommended in all patients with ALD and AUD, but it remains underutilized.

Aims
To identify predictors of AUD treatment and to assess 30-day readmission, return to drinking, and 1-year transplant-free survival.

Methods
Retrospective single-center cohort study of consecutive patients hospitalized with ALD and AUD between 2018 and 2020. Patients who died or were lost to follow-up at 90 days after hospitalization were excluded. AUD treatment was defined as receiving medication or participating in residential, outpatient, or support groups within 90 days of discharge.

Results
One hundred nine patients were included. Mean age was 51.7 years, and 63% were male. Fifty-six (51%) patients received AUD treatment, and 23 (21%) patients received more than one treatment. Predictors of AUD treatment were younger age (OR, 1.07 [95% CI, 1.04–1.12]; P < 0.001), gastroenterology/hepatology consult (AOR, 8.54 [95% CI, 2.55–39.50]; P = 0.0002), addiction psychiatry consult (AOR, 2.77 [95% CI, 1.16–6.84]; P = 0.02), and a brief AUD intervention (AOR, 18.19 [95% CI, 3.36–339.07]; P = 0.0001). Cirrhosis decompensation, MELD-Na score, and insurance status were not associated with treatment. Thirty-one patients (28.4%) were readmitted, and 29 (26.6%) remained abstinent 30 days from discharge. Patients who received treatment had improved transplant-free survival (HR, 0.44, P = 0.04).

Conclusion
A brief intervention on AUD had the strongest association with receiving AUD treatment in our cohort. Further efforts to incorporate brief interventions when offering AUD treatment to patients with ALD may be beneficial.