bluuebunny/crossref_metadata_2025_split huggingface dataset:
An adaptive coupled control method based on vehicles platooning for intersection controller and vehicle trajectories in mixed traffic
Authors: Feng Lei , Zhao Xin , Chen Zhijun , Song Li 
Published: June 2024

AbstractConnected and autonomous driving technologies offer a novel solution for intersection control optimization. Connected and autonomous vehicles (CAVs) can access signal plans and optimize trajectories to minimize delays and reduce fuel consumption. However, optimizing trajectories for individual vehicles significantly increases complexity, especially for joint optimization of traffic signals and vehicle trajectories. Given the current technical, regulatory, and policy constraints, a superior intersection management approach is necessary before fully automated driving is achieved. This paper introduces an adaptive coupling control (ACC) method based on vehicle platooning to optimize signal timings and vehicle trajectories in mixed traffic. Initially, vehicle platoon segmentation is conducted, led by CAVs. The study then proposes a single‐layer coupled optimization model based on vehicle platoons, simplifying the joint optimization model. To address logistic constraint difficulties, a linearization of the coupled model (LCM) method is developed. Numerical experiments demonstrate that the ACC method significantly reduces vehicle delay and fuel consumption. At high CAV penetration rates (0.8 < R <1) and high traffic volumes (over 900 pcu/h), vehicle platoon control delivers excellent performance, with delays and fuel consumption even lower than in a fully automated environment (R = 1). This surprising result suggests that the mixed platoon system (ACC method) positively impacts mixed traffic.
A novel nine‐level inverter, applicable in air plane ground power unit
Authors: Ebrahimi Reza , Kojabadi Hossein Madadi 
Published: June 2024

AbstractIn this study, a novel nine‐level inverter using one voltage source, 10 unidirectional and one bidirectional power switches, and two capacitors has been proposed to utilize in ground power units (GPUs). Selective harmonic elimination method has been applied to reduce the output voltage's THD to less than 3% with 115/200 V and 400 Hz. The proposed converter utilized a lower number of devices to output a nine‐level staircase in comparison to existing converters. Also, the proposed converter uses inherent self‐voltage balancing for capacitors' voltage. So, the control algorithm gets simpler. In this study, the topology analysis, modulation algorithm, capacitor calculation, loss, efficiency, and performance analysis of the proposed topology have been presented. The proposed circuit has been compared to recently published papers in terms of efficiency, switch, capacitor, diode, and source numbers. The theoretical and experimental performance of the topology has been verified by simulation on PSCAD and PSIM software and 350 W experimental setup.
Modal ordered shape factors as radar feature set
Authors: Salamah Salem , Aldhubaib Faisal 
Published: June 2024

AbstractThe characteristic polarisation states form a second layer feature set by reflecting shape attributes about that target, enabling better identification performance of the resonance signature. These shape factors reflect a structure's curvature extent, dihedral degree between corners, and the axial ratio between principal axes by determining two characteristic angles associated with the null polarisation state and a ratio of the optimum maximum and minimum received powers, respectively. However, the accuracy of the shape factors degrades with a poorly estimated resonance signature caused by noise, missing resonance due to occlusion or ambiguity in late time onset. Thus, the authors aim to reduce the effect of these problems using an ensemble average to filter noise and enhance the signal strength, properly selecting a modal order to ensure modal consistency of the signature and decay sum (DS) to select the late time onset properly to avoid missing resonance within the polarisation matrix. Finally, a paradigm of two jetfighters validated the factors' discriminative potential across an azimuth plane of low depression angle. The results showed that a DS around 0.4 improves the estimated factors over most resonance modes and azimuth directions. At most target aspects, the first‐order shape factors consistently predicted a dominant parallel wedge‐shaped structure, while the second‐order shape factors consistently predicted a trough‐shaped structure; finally, the third‐order factors revealed wedge‐shape attributes at forward look aspects but trough‐shaped attributes at backward look aspects.
Adaptive Takagi–Sugeno (T–S) fuzzy observer based fault tolerant control for DC–DC converters with robustness against uncertainties
Authors: Raja Muneeb Masood , Zhao Qing 
Published: June 2024

AbstractThis paper proposes a Takagi–Sugeno fuzzy system model based fault tolerant control scheme for DC–DC converters, which is robust against parameter uncertainties and achieves the output voltage of an ideal converter. The control involves estimating the duty cycle change in the form of a fault parameter required to track the output voltage, in the presence of several uncertain conditions including converter losses, variation in input voltage, and unknown and changing output load. An adaptive law is designed to estimate the fault parameter that guarantees state and parameter error convergence. The adaptive law is derived using the Lyapunov stability theorem and the required parameters are evaluated by solving a linear matrix inequalities optimization problem. The load resistance is estimated in parallel by using a Kalman filter and fed to the fault parameter estimation scheme. Furthermore, a fast and robust method to detect short and open circuit switch faults is also presented. The proposed technique offers a simple, yet effective method to regulate the output voltage under several faulty and uncertain conditions. The proposed technique is tested on a DC–DC boost converter simulation model and the demonstrated MATLAB/Simulink results show the effectiveness of the proposed algorithm.
Physique de la morphogenèse des coquilles de mollusques
Authors: Moulton Derek E. , Goriely Alain , Chirat Régis 
Published: June 2024

Les mollusques sécrètent des coquilles, dont le développement soulève des questions déroutantes. Comment les bivalves produisent-ils une coquille dont les deux valves s’emboitent parfaitement l’une dans l’autre comme les pièces d’un puzzle ? Comment certaines ammonites, des céphalopodes fossiles, ont-elles formé de surprenantes coquilles asymétriques malgré une symétrie bilatérale de leur corps ?
Des modèles mathématiques fournissent une explication physique : la coquille enregistre l’histoire des déformations mécaniques de la membrane élastique qui la sécrète et de l’ensemble du corps de l’animal qu’elle contient.
Effondrement de châteaux de sable dans l’eau : des tsunamis de laboratoire
Authors: Sarlin Wladimir , Morize Cyprien , Sauret Alban , Gondret Philippe 
Published: June 2024

Les tsunamis générés par des glissements de terrains ou la chute de pans de montagnes dans les océans, lacs ou fleuves, peuvent être particulièrement destructeurs et meurtriers pour les côtes avoisinantes.
Ces évènements ont été dernièrement reproduits en laboratoire, dans une configuration modèle semblable à celle d’un château de sable s’écroulant dans l’eau sous l’effet de la gravité.
Rückkehr in das Erwerbsleben nach Krebs – eine systematische
Übersichtsarbeit zu Prädiktoren in Deutschland
Authors: Breidenbach Clara , Ernstmann Nicole , Schellack Sophie , Degenhardt Marie , Heidkamp Paula , Heier Lina , Hiltrop Kati , Rick Oliver , Soff Johannes , Kowalski Christoph 
Published: June 2024

Zusammenfassung
Einleitung Mehr als ein Drittel der Krebsüberlebenden befinden sich im
erwerbsfähigen Alter. Die Rückkehr ins Erwerbsleben (englisch: return to work –
RTW) mit und nach Krebs ist für diese Gruppe deshalb ein wichtiges Thema –
häufig jedoch mit vielen Herausforderungen verbunden. Ziel dieser systematischen
Übersichtsarbeit ist es, die Prädiktoren für RTW nach Krebs spezifisch für
Deutschland aus der Literatur zu identifizieren sowie diese Faktoren zeitlich in
den onkologischen Behandlungsverlauf einzuordnen.
Methode Die systematische Recherche wurde im Juni 2022 mit PubMed
durchgeführt. Eingeschlossen wurden alle deutsch- oder englischsprachigen
Originalarbeiten, die zwischen den Jahren 2000 und 2022 unabhängig vom
Studiendesign veröffentlicht wurden, und die sich auf ein/e deutsche/s
Stichprobe/Sample beziehen.
Ergebnisse Von insgesamt 8.381 Treffern in der Meta-Datenbank wurden
schließlich 30 Publikationen bei der Synthese der Ergebnisse berücksichtigt. Ein
höheres Alter, niedrigere Bildung, niedrigerer sozioökonomischer Status, ein
höheres Erkrankungsstadium, ein progressiverer Krankheitsverlauf, stärkere
Nebenwirkungen der Behandlung, (schwerere) Fatigue, höhere psychische Belastung,
ein schlechterer Gesundheitsstatus, die berufliche Stellung als Arbeiter*in und
handwerkliche Tätigkeiten, Erwerbslosigkeit vor der Diagnose, eine negativere
Wahrnehmung der Arbeits(platz)umgebung und eine geringere Intention zur Arbeit
und geringere Arbeitsfähigkeit/subjektive Erwerbsprognose gingen in der
Literatur mit einer geringeren Wahrscheinlichkeit zum RTW nach Krebs einher.
Auch die Behandlungsart und Inanspruchnahme einer Rehabilitation wurden mit der
Wahrscheinlichkeit zum RTW in Verbindung gebracht.
Diskussion Es wurden soziodemografische, krankheitsbezogene und
psychosoziale sowie arbeits-bezogene Prädiktoren für RTW nach Krebs in
Deutschland identifiziert. Die Ergebnisse können dazu beitragen, zielgerichtete
Unterstützungsmaßnahmen zu entwickeln, die in konkreten Phasen der Behandlung
angewendet werden können. Die Vergleichbarkeit und Bewertungsmöglichkeiten der
Literatur zu den Prädiktoren für RTW sind aufgrund einer hohen Heterogenität bei
der Operationalisierung von RTW und dem methodischen Vorgehen eingeschränkt. Es
bedarf hier weiterer Vereinheitlichung.
New Dephenylated Analogues of (–)-Goniofufurone: Optimization of Synthesis from l-Xylose
Authors: Zelenović Bojana Srećo , Stanisavljević Sladjana , Popsavin Mirjana , Kojić Vesna , Benedeković Goran , Popsavin Velimir 
Published: June 2024

AbstractNatural products containing highly oxygenated furanofuranone fragments are known for their potent biological activity, but also for their challenging total synthesis. In this study, the synthesis of five novel dephenylated (–)-goniofufurone analogues was completed and their cytotoxic activity against eight malignant and one normal human cell line was evaluated. Compared with previous syntheses of similar analogues, the synthesis was carried out starting from l-xylose, resulting in improved yields and a reduced number of synthetic steps for three divergent intermediates.
Feeding Practices of Colombian Families with Minors Younger than 18 Years during the Initial Phase of COVID-19 Quarantine
Authors: Dadán Silvana , Higuera-Carrillo Michelle , Camacho-Cruz Jhon , Daza-Carreño Wilson 
Published: June 2024

AbstractThe coronavirus disease 2019 (COVID-19) pandemic has raised concerns regarding food availability and access. The aim of this study is to describe feeding practices and associated factors in Colombian families with members younger than 18 years at the beginning of the 2020 quarantine. This is an observational, descriptive, cross-sectional study. An online survey was administered to parents or caregivers of minors younger than 18 years in Colombia, focusing on feeding practices. The analysis consisted of three steps: first, estimation of descriptive statistics; second, multiple correspondence analysis to derive an index for each main meal; and finally, generalized linear models were applied to each main meal index, incorporating predictors to explain changes in food consumption. A total of 1,419 participants were included. Among them, 654 (46%) indicated changes in their feeding practices during the quarantine due to reasons such as lack of funds, portion reduction to stretch food, difficulty in shopping, and perception of limited variety in the market. The perceived lack of variety while shopping significantly affected the breakfast index (p = 0.037), lunch index (p = 0.037), and dinner index (p = 0.001). Socioeconomic level influenced the breakfast index (p = 0.012) and lunch index (p = 0.012) but not the dinner index. Nearly half of the surveyed families perceived changes in their feeding practices during the COVID-19 pandemic, which were linked to socioeconomic status and the perceived lack of variety while shopping.
Floating Thrombus in the Aortic Arch: Rare Images
Authors: Cherkaoui Jaouad Mohamed Reda , Egueh Nour Abdoulrazak , Miqdadi Amal , Mahi Mohamed , Bouknani Nawal 
Published: June 2024

AbstractAortic floating thrombus is a rare, life-threatening disease. Most cases of aortic thrombus are diagnosed after embolic events; however, on rare occasion we may diagnose this condition incidentally during routine examinations as in our case.
Do Sleep Time and Duration Affect the Development of Prehypertension in Undergraduate Medical Students? An Experience from a Tertiary Care Hospital in Kolkata
Authors: Ali Sayan , Karmakar Samit , Chakraborty Arup , Ghosh Saptarshi 
Published: June 2024

Abstract
Introduction and Objective Hypertension is an evolving public health challenge at present, and it is preceded by a prehypertensive stage. Irregular sleep duration and pattern have been found to be linked with cardiovascular diseases. Medical students are highly vulnerable to low quality sleep due to pressure regarding the academic curriculum and poor lifestyle. The present study aimed to estimate the prevalence of prehypertension, describe the risk factors and sleep patterns of undergraduate medical students, and determine the association, if any, involving sleep time and duration and prehypertension.
Materials and Methods Data was collected from 254 undergraduate medical students via the Pittsburgh Sleep Quality Index (PSQI) questionnaire and a self-structured questionnaire. The frequency of events was established and the Chi-squared and t-tests were applied to determine the association. Finally, regression analysis was performed to determine the correlation.
Results Male sex, high body mass index (BMI), poor sleep quality, and night sleep duration shorter than 5 hours were found to be significant risk factors for the development of prehypertensive condition (prevalence of 42.5%). However, there were no statistically significant associations regarding prehypertension and family history, junk food and salt intake, physical activity and daytime napping, bedtime, and wake-up time. Night sleep duration shorter than 5 hours presented an odds ratio of 4.713 (p = 0.010) for the development of prehypertension after adjusting for other risk factors, such as male sex, sleep quality, and high BMI.
Discussion and Conclusion A high prevalence of prehypertension (42.5%) was noted among undergraduate medical students. Night sleep duration shorter than 5 hours was a significant risk factor for the development of prehypertension, whereas sleep time was not significantly associated with prehypertension.
Chinization of social education: a lifelong exploration of Ma Zongrong’s educational theory and practice
Authors: Liu Jinrong , Wang Xiaoxuan 
Published: June 2024

AbstractAs an outstanding scholar in social education research in the Republican period, Ma Zongrong devotes his life to promoting the “Chinization of social education.” Ma Zongrong believes that for social education to truly save the country and the people in China, the prerequisite is to localize social education. This study finds that the Chinization of social education advocated by Ma Zongrong refers to adapting the theory and practice of social education to China’s national conditions and manifesting Chinese characteristics. The specific connotations of Ma Zongrong’s Chinization of social education include the Chinization of social education objects, the Chinization of social education definitions, and the Chinization of social education goals. From a Chinese perspective, he introduces the advanced social education concepts of Japan and the West and combines them with China’s unique national conditions to form a form of social education with Chinese characteristics; from a global perspective, Ma Zongrong’s combination of Japanese and Western social education with China’s local education system provides a successful case worthy of study by the world.
Impact of CEO’s scientific research background on the enterprise digital level
Authors: Luo Yi , Cui Rongda , Ma Jian , Jin Yukun , Li Mengheng , Lin Shu 
Published: June 2024

AbstractLeveraging the Chinese capital market, we investigate the relationship between a CEO’s scientific research background and the level of digitalization within enterprises. Our results demonstrate robust findings indicating that a CEO’s scientific research background significantly enhances the level of enterprise digitalization. Moreover, we observe that this correlation is more pronounced in companies controlled by non-state-owned enterprises, those operating within a more advanced digital economy, and those engaged in high levels of regional integration. Furthermore, we establish that the positive impact of a CEO’s research background on a company’s digitalization level is primarily driven by fostering the organization’s innovation drive. Overall, our research suggests that CEOs with scientific research backgrounds are instrumental in encouraging a culture of innovation within their firms, thereby enhancing enterprise digitalization performance. This study contributes to the literature by exploring the factors influencing enterprise digitalization levels through the lens of managerial experience and analyzing the economic implications of management experience on enterprise digital transformation. Methodologically, we have refined and enhanced the measurement approach for assessing enterprise digitalization levels. Practically, our findings underscore the importance of promoting cross-industry and cross-regional exchanges of high-caliber talent for executives, enterprises, and governmental entities alike.
Online training programs for adults with disabilities: a systematic review
Authors: González Desirée , Del Prete Annachiara 
Published: June 2024

AbstractIn the last decade, there has been an increase in online or digital technology-based training. Online training offers promising, accessible learning opportunities for everyone. However, few studies have specifically evaluated the scope of this training for adults with disabilities. The primary aim of this study is to conduct a systematic review of this topic. This involves evaluating the literature, including the methodology used, the variables analyzed, and the characteristics of the training program, as well as identifying gaps in the research. Our findings show that the number of publications is low, although there has been an increase in recent years. Furthermore, it is critical to highlight the importance of an intervention methodology grounded in scientific research and the evaluation of implementation fidelity. In general, online programs improve a variety of trained skills. Expanding interventions within this population, mainly targeting adult women with disabilities, is essential to promote equity and inclusivity in lifelong learning.
U.S.–China trade conflicts and R&D investment: evidence from the BIS entity lists
Authors: Hu Han , Yang Shihui , Zeng Lin , Zhang Xuesi 
Published: June 2024

AbstractThe economic outcomes of U.S.–China trade conflicts on Chinese enterprises remain ambiguous. Using the staggered export control lists released by the Bureau of Industry and Security (BIS) of the U.S. Department of Commerce in conjunction with data from Chinese publicly listed manufacturing firms, we identify Chinese entities subjected to these export controls. Our Difference-in-Differences (DID) estimates show that export restrictions induced by the entity lists enhance the R&D investment intensity among Chinese firms by 16.58% in the next year. The mechanism is that controls increase firms’ R&D investment through government subsidies, firms’ inventory adjustment and firms’ risk-taking. Heterogeneity tests show that the policy effect is more significant for State-owned enterprises (SOEs), firms with executives with foreign experience. In addition, the R&D promotion of firms supported by China’s industrial policy is more pronounced. Although controls significantly increase R&D inputs, they have little or negative effect on firms’ innovation outputs. Our study provides micro-level causal evidence on the economic impacts of the U.S.–China trade war.
Depth-selective x-ray diffraction using energy-dispersive x-ray detector and straight capillary optics
Authors: Fukumoto Shotaro , Okuda Masaki , Matsuyama Tsugufumi , Tsuji Kouichi 
Published: June 2024

Depth-selective x-ray diffraction (XRD) technique was developed. In this technique, XRD spectra were measured using an energy dispersive (ED) x-ray detector at fixed angles. A straight capillary optic was used to define the incident x-ray beam, and a second straight capillary defined the beam path from the sample to detector. Thereby, only the XRD spectrum at the small intersection of two capillary optics could be obtained. A depth-selective XRD is possible by changing the sample position in depth. Many XRD peaks appear in a high-energy range more than 10 keV in the ED spectrum. The detection of these peaks will be advantageous for depth analysis because of low absorption in the sample. Depth-selective measurement would be advantageous over general XRD. In this study, depth-selective and ED-XRD spectra are demonstrated for the layered sample, which consisted of film-like Si powder and a muscovite film.
Inverse conductivity problem with one measurement: uniqueness of multi-layer structures
Authors: Kong Lingzheng , Deng Youjun , Zhu Liyan 
Published: June 2024

Abstract
In this paper, we study the recovery of multi-layer structures in inverse conductivity problem by using one measurement. First, we define the concept of Generalized Polarization Tensors (GPTs) for multi-layered medium and show some important properties of the proposed GPTs. With the help of GPTs, we present the perturbation formula for general multi-layered medium. Then we derive the perturbed electric potential for multi-layer concentric disks structure in terms of the so-called generalized polarization matrix, whose dimension is the same as the number of the layers. By delicate analysis, we derive an algebraic identity involving the geometric and material configurations of multi-layer concentric disks. This enables us to reconstruct the multi-layer structures by using only one partial-order measurement.
Intrinsic second-order magnon thermal Hall effect
Authors: Li Jun-Cen , Zhu Zhen-Gang 
Published: June 2024

Abstract
In this paper, we study the intrinsic contribution of nonlinear magnon thermal Hall Effect. We derive the intrinsic second-order thermal Hall conductivity of magnon by the thermal scalar potential method and the thermal vector potential method. We find that the intrinsic second-order magnon thermal Hall conductivity is related to the thermal Berry-connection polarizability. We apply our theory to the monolayer ferromagnetic Hexagonal lattice, and we find that the second-order magnon thermal Hall conductivity can be controlled by changing Dzyaloshinskii–Moriya strength and applying strain.