bluuebunny/crossref_metadata_2025 huggingface dataset:
Flame-Retardant GF-PSB/DOPO-POSS Composite with Low Dk/Df and High Thermal Stability for High-Frequency Copper Clad Applications
Authors: Zheng Ke , Zhang Yizhi , Qiu Jiaxiang , Xie Guanqun , Huang Zengbiao , Lin Wei , Liu Zhimeng , Liu Qianfa , Wang Xiaoxia
Published: February 2024

In the field of high-frequency communications devices, there is an urgent need to develop high-performance copper clad laminates (CCLs) with low dielectric loss (Df) plus good flame retardancy and thermal stability. The hydrocarbon resin styrene-butadiene block copolymer (PSB) was modified with the flame-retardant 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide/polyhedral oligomeric silsesquioxanes (DOPO-POSS) to meet the demands of high-frequency and high-speed applications. The resulting DOPO-POSS-modified PSB was used as the resin matrix along with other additives to fabricate PSB/DOPO-POSS laminates. At a high-frequency of 10 GHz, the laminates containing 20 wt.% of DOPO-POSS and with a thickness of 0.09 mm exhibited a Df of 0.00328, which is much lower compared with the commercial PSB/PX-200 composite (Df: 0.00498) and the PSB without flame retardancy (Df: 0.00453). Afterwards, glass fiber cloth (GF) was used as a reinforcing material to manufacture GF-PSB/DOPO-POSS composite laminates with a thickness of 0.25 mm. The flame retardancy of GF-PSB/DOPO-POSS composite laminate reached vertical burning (UL-94) V-1 grade, and GF-PSB/DOPO-POSS exhibited higher thermal and dynamic mechanical properties than GF-PSB/PX-200. The results of a limited oxygen index (LOI) and self-extinguishing time tests also demonstrated the superior flame-retardant performance of DOPO-POSS compared with PX-200. The investigation indicates that GF-PSB/DOPO-POSS composite laminates have significant potential for use in fabricating a printed circuit board (PCB) for high-frequency and high-speed applications.
A Review of Polymer-Based Environment-Induced Nanogenerators: Power Generation Performance and Polymer Material Manipulations
Authors: Xie Shuanghong , Yan Huping , Qi Ronghui
Published: February 2024

Natural environment hosts a considerable amount of accessible energy, comprising mechanical, thermal, and chemical potentials. Environment-induced nanogenerators are nanomaterial-based electronic chips that capture environmental energy and convert it into electricity in an environmentally friendly way. Polymers, characterized by their superior flexibility, lightweight, and ease of processing, are considered viable materials. In this paper, a thorough review and comparison of various polymer-based nanogenerators were provided, focusing on their power generation principles, key materials, power density and stability, and performance modulation methods. The latest developed nanogenerators mainly include triboelectric nanogenerators (TriboENG), piezoelectric nanogenerators (PENG), thermoelectric nanogenerators (ThermoENG), osmotic power nanogenerator (OPNG), and moist-electric generators (MENG). Potential practical applications of polymer-based nanogenerator were also summarized. The review found that polymer nanogenerators can harness a variety of energy sources, with the basic power generation mechanism centered on displacement/conduction currents induced by dipole/ion polarization, due to the non-uniform distribution of physical fields within the polymers. The performance enhancement should mainly start from strengthening the ion mobility and positive/negative ion separation in polymer materials. The development of ionic hydrogel and hydrogel matrix composites is promising for future nanogenerators and can also enable multi-energy collaborative power generation. In addition, enhancing the uneven distribution of temperature, concentration, and pressure induced by surrounding environment within polymer materials can also effectively improve output performance. Finally, the challenges faced by polymer-based nanogenerators and directions for future development were prospected.
Development of Novel Cornstarch Hydrogel-Based Food Coolant and its Characterization
Authors: Zheng Yalu , Ma Yan , Ukwatta Ruchika Hansanie , Xue Feng , Li Chen
Published: February 2024

The food, pharmaceutical, and supply transport storage chain is seeking coolants that come with plastic-free packaging, are nontoxic, environmentally friendly, robust, reusable, and reduce water waste. To meet this demand, a new food coolant based on cornstarch hydrogel was developed and tested using the regeneration method. This study investigated the reusability, water retention, rehydration, and surface cleanliness of the hydrogel, along with its application in freshness retention for fruits. The results of the gel strength and differential scanning calorimetry (DSC) analysis showed that the ideal concentration of cornstarch hydrogel was 8%. Freezing and thawing experiments demonstrated that the hydrogel had the potential to be used as a cooling medium for refrigerated fresh foods. Moreover, the gel strength, scanning electron microscopy images (SEM), DSC, and thermogravimetric analysis (TG) revealed that the freeze–thaw reuse only slightly affected its freezable water content and that its gel strength gradually increased during reuse. Water retention and rehydration tests showed that the hydrogels could be better preserved at −20 °C compared to 4 °C, and the water lost during reuse could be replenished through rehydration. The flexibility in terms of shape and size also allows the hydrogel ice to be used as a customized coolant for various food shapes, as demonstrated by preservation experiments. Additionally, washing the hydrogel after each use can result in a significant reduction in Escherichia coli, Salmonella, and Staphylococcus aureus concentrations by 3.03, 3.47, and 2.77 log CFU/hydrogel, respectively. Overall, the new cornstarch hydrogel coolant is a promising alternative to conventional ice, with the potential to serve as a food coolant.
Cooling Damage Characterization and Chemical-Enhanced Oil Recovery in Low-Permeable and High-Waxy Oil Reservoirs
Authors: Li Xuanran , Zhao Lun , Fei Ruijie , Wang Jincai , Liu Shanglin , Li Minghui , Han Shujun , Zhou Fujian , Yuan Shuai
Published: February 2024

The well productivity of high-waxy reservoirs is highly influenced by temperature changes. A decrease in temperature can cause the precipitation of wax from the crude oil, leading to a decrease in the formation’s drainage capacity and a drop in oil production. In this study, the wax precipitation of crude oil is characterized by rheological properties tests and differential scanning calorimetry (DSC) thermal analysis. The wax damage characteristics of cores and the relative permeability curves at different temperatures were investigated through coreflood experiments. Furthermore, nanoemulsion is selected as a chemical agent for injection fluid. The nuclear magnetic resonance (NMR) scanning technique is used to investigate the effects of oil recovery enhancement at different pores by increasing temperature and adding nanoemulsion. By comparing the changes in T2 spectra and the distribution pattern of residual oil before and after liquid injection, the results have shown that both increasing temperature and adding nanoemulsion have a significant effect on oil recovery. The improvement of micropores is less pronounced compared to macropores. The produced oil mainly comes from the large pores. When the temperature is lower than the crude oil dewaxing point temperature, there is a serious dewaxing plugging phenomenon in the pores. Additionally, by observing the pattern of residual oil distribution at the end of the NMR online drive, it is hereby classified into wax deposition retention type, weak water washing retention type, and immobilized type, each with its own distinct characteristics. Wettability alteration and interfacial tension reduction can help to improve the drainage capacity of high-wax oil reservoirs, which is the main mechanism of nanoemulsion for enhanced oil recovery. These findings are highly valuable for enhancing the comprehension of the impact of highly waxed crude oils on drainage capacity and the ultimate oil recovery rate, particularly in relation to wax precipitation deposition.
Thermal Characteristics of Spindle System Based on the Comprehensive Effect of Multiple Nonlinear Time-Varying Factors
Authors: Lin Xiaoliang , Deng Xiaolei , Zheng Junjian , Yao Xinhua , Shen Hongyao
Published: February 2024

The thermal characteristics of the spindle system for CNC machine tools are influenced by multiple factors which are nonlinear and time-varying. In this paper, a nonlinear time-varying thermal characteristics solving model for the spindle system was established based on the numerical solution method. Through theoretical deduction and data fitting, mathematical models of nonlinear time-varying factors including the friction torque generated by lubricants, convective heat transfer coefficient, and coolant and ambient temperature are constructed. The temperature and displacement of the spindle system at each time step are solved by considering the comprehensive effect of multiple nonlinear time-varying factors. And the actual temperature and axial deformation data of the spindle system are obtained through thermal characteristics detection experiments. By comparing solution results affected by multiple nonlinear time-varying factors and by non time-varying factors with experimental data, it can be concluded that the nonlinear time-varying thermal characteristics model has advantages in reflecting the trend of numerical changes and the accuracy of result solving over a method considering non time-varying factors and the solution values of temperature affected by multiple nonlinear time-varying factors are almost consistent with detection values and the relative errors are all within ±3%. The relative error of axial deformation between the value solved by the model and the detection value is close to −1%. This conclusion demonstrates the rationality and accuracy of the thermal characteristics solving model and the construction of nonlinear time-varying factors. This study is of great significance for exploring the thermal characteristics of the spindle system and improving CNC machine tool performance in depth.
Health Management of Bearings Using Adaptive Parametric VMD and Flying Squirrel Search Algorithms to Optimize SVM
Authors: Zhang Tianrui , Zhou Lianhong , Li Jinyang , Niu Huiyuan
Published: February 2024

Bearing, as one of the core parts of rotating machinery, has a running state which is related to the overall operation of the system. Due to the bearing structure and its complex operating environment, running condition monitoring and fault diagnosis is always a key problem in the field of bearing health management, which is of great significance for bearing maintenance and equipment reliability and safety. In view of the difficulty in parameter selection and poor feature extraction ability of variational mode decomposition (VMD) in existing feature extraction, this paper uses the flying squirrel search algorithm (SSA) to optimize the parametric of decomposition layer k and penalty factor α in VMD, and forms an adaptive VMD signal decomposition method. To solve the problem of high dimensionality and long extraction time of multi-domain fault feature set, kernel principal component analysis (KPCA) is used to reduce feature dimensionality. Then, the processed features are input into the support vector machine (SVM) for fault diagnosis and classification, and the parameter optimization ability of SSA is used again to build the SSA-SVM fault diagnosis model. To evaluate the running state of bearings, an alarm threshold method based on the root mean square value calculated by cosine similarity and 3σ is proposed to divide samples of different health states. Finally, the method constructed in this paper is compared with other methods by using simulation and experimental data sets, and the running condition monitoring and fault diagnosis of rolling bearings are successfully realized, which shows the superiority and effectiveness of the method proposed in this paper.
Analysis of the Substantial Growth of Water Bodies during the Urbanization Process Using Landsat Imagery—A Case Study of the Lixiahe Region, China
Authors: Jiang Haoran , Ji Luyan , Yu Kai , Zhao Yongchao
Published: February 2024

In the process of urbanization, water bodies bear considerable anthropogenic pressure, resulting in a reduction of their surface area in most instances. Nevertheless, in contrast to many other regions, the Lixiahe region in Jiangsu Province, located in China’s eastern plain, has experienced a continuous expansion of water bodies over the past few decades amid rapid urbanization. Using Landsat images spanning from 1975 to 2023, this study analyzed changes in water resources and the growth of impervious surfaces during urbanization. The findings revealed that the area of impervious surfaces in the region increased from 227.1 km2 in 1975 to 1883.1 km2 in 2023. Natural wetland suffered significant losses, declining from 507.2 km2 in 1975 to near disappearance by the year 2000, with no significant recovery observed thereafter. Simultaneously, the water area expanded from 459.3 km2 in 1975 to 2373.1 km2 in 2023, primarily propelled by the significant contribution of aquaculture ponds, accounting for 2175.0 km2 or 91.7% of the total water area. Driver analysis revealed that these changes were found to be influenced by factors such as population, economy, demand, and policies. However, alongside the economic development brought by urbanization, negative impacts such as lake shrinkage, eutrophication, and increased flood risks have emerged. The Lixiahe region, as a relatively underdeveloped part of Jiangsu Province, faces the challenge of striking a balance between economic growth and environmental conservation.
A Novel Fully Convolutional Auto-Encoder Based on Dual Clustering and Latent Feature Adversarial Consistency for Hyperspectral Anomaly Detection
Authors: Zhao Rui , Yang Zhiwei , Meng Xiangchao , Shao Feng
Published: February 2024

With the development of artificial intelligence, the ability to capture the background characteristics of hyperspectral imagery (HSI) has improved, showing promising performance in hyperspectral anomaly detection (HAD) tasks. However, existing methods proposed in recent years still suffer from certain limitations: (1) Constraints are lacking in the deep feature learning process in terms of the issue of the absence of prior background and anomaly information. (2) Hyperspectral anomaly detectors with traditional self-supervised deep learning methods fail to ensure prioritized reconstruction of the background. (3) The architecture of fully connected deep networks in hyperspectral anomaly detectors leads to low utilization of spatial information and the destruction of the original spatial relationship in hyperspectral imagery and disregards the spectral correlation between adjacent pixels. (4) Hypotheses or assumptions for background and anomaly distributions restrict the performance of many hyperspectral anomaly detectors because the distributions of background land covers are usually complex and not assumable in real-world hyperspectral imagery. In consideration of the above problems, in this paper, we propose a novel fully convolutional auto-encoder based on dual clustering and latent feature adversarial consistency (FCAE-DCAC) for HAD, which is carried out with self-supervised learning-based processing. Firstly, density-based spatial clustering of applications with a noise algorithm and connected component analysis are utilized for successive spectral and spatial clustering to obtain more precise prior background and anomaly information, which facilitates the separation between background and anomaly samples during the training of our method. Subsequently, a novel fully convolutional auto-encoder (FCAE) integrated with a spatial–spectral joint attention (SSJA) mechanism is proposed to enhance the utilization of spatial information and augment feature expression. In addition, a latent feature adversarial consistency network with the ability to learn actual background distribution in hyperspectral imagery is proposed to achieve pure background reconstruction. Finally, a triplet loss is introduced to enhance the separability between background and anomaly, and the reconstruction residual serves as the anomaly detection result. We evaluate the proposed method based on seven groups of real-world hyperspectral datasets, and the experimental results confirm the effectiveness and superior performance of the proposed method versus nine state-of-the-art methods.
Target Detection Adapting to Spectral Variability in Multi-Temporal Hyperspectral Images Using Implicit Contrastive Learning
Authors: Zhang Xiaodian , Gao Kun , Wang Junwei , Wang Pengyu , Hu Zibo , Yang Zhijia , Zhao Xiaobin , Li Wei
Published: February 2024

Hyperspectral target detection (HTD) is a crucial aspect of remote sensing applications, aiming to identify targets in hyperspectral images (HSIs) based on their known prior spectral signatures. However, the spectral variability resulting from various imaging conditions in multi-temporal hyperspectral images poses a challenge to both classical and deep learning (DL) methods. To overcome the limitations imposed by spectral variability, an implicit contrastive learning-based target detector (ICLTD) is proposed to exploit in-scene spectra in an unsupervised way. First, only prior spectra are utilized for explicit supervision, while an implicit contrastive learning module (ICLM) is designed to normalize the feature distributions of prior and in-scene spectra. This paper theoretically demonstrates that the ICLM can transfer the gradients from prior spectral features to those of in-scene spectra based on their feature similarities and differences. Because of transferred gradient signals, the ICLTD is regularized to extract similar representations for the prior and in-scene target spectra, while augmenting feature differences between the target and background spectra. Additionally, a local spectral similarity constraint (LSSC) is proposed to enhance the capability of scene adaptation by leveraging the spectral similarities among in-scene targets. To validate the performance of the ICLTD under spectral variability, multi-temporal HSIs captured under various imaging conditions are collected to generate prior spectra and in-scene spectra. Comparative evaluations against several DL detectors and classical methods reveal the superior performance of the ICLTD in achieving a balance between target detectability and background suppressibility under spectral variability.
A CFAR-Enhanced Ship Detector for SAR Images Based on YOLOv5s
Authors: Wen Xue , Zhang Shaoming , Wang Jianmei , Yao Tangjun , Tang Yan
Published: February 2024

Ship detection and recognition in Synthetic Aperture Radar (SAR) images are crucial for maritime surveillance and traffic management. Limited availability of high-quality datasets hinders in-depth exploration of ship features in complex SAR images. While most existing SAR ship research is primarily based on Convolutional Neural Networks (CNNs), and although deep learning advances SAR image interpretation, it often prioritizes recognition over computational efficiency and underutilizes SAR image prior information. Therefore, this paper proposes YOLOv5s-based ship detection in SAR images. Firstly, for comprehensive detection enhancement, we employ the lightweight YOLOv5s model as the baseline. Secondly, we introduce a sub-net into YOLOv5s, learning traditional features to augment ship feature representation of Constant False Alarm Rate (CFAR). Additionally, we attempt to incorporate frequency-domain information into the channel attention mechanism to further improve detection. Extensive experiments on the Ship Recognition and Detection Dataset (SRSDDv1.0) in complex SAR scenarios confirm our method’s 68.04% detection accuracy and 60.25% recall, with a compact 18.51 M model size. Our network surpasses peers in mAP, F1 score, model size, and inference speed, displaying robustness across diverse complex scenes.
Nanofiltration-Assisted Concentration Processes of Phenolic Fractions and Carotenoids from Natural Food Matrices
Authors: Castro-Muñoz Roberto
Published: February 2024

In new food formulations, carotenoids and phenolic compounds are likely to be the most sought after food ingredients according to their bioactivity, nutraceutical, nutritional value, and compatibility properties once incorporated into food formulations. Such solutes are naturally present in many plant-based sources, and some portions are directly consumed when enriching food products and formulations; however, some portions, which are contained in the parts of the plant sources not considered edible, including the leaves, peel, and seeds, among other by-products, are commonly wasted. Related to this, scientists have found a new window for obtaining these bioactive molecules, but their recovery remains a challenge. To some extent, the final purification and polishing requires highly selective performance to guarantee the desired properties and concentration. In this regard, membrane technologies, such as nanofiltration (NF), represent an alternative, owing to their highly selective properties when separating low-molecular-weight compounds. NF becomes immediately suitable when the pretreated extracts are subjected to further efficient concentration, fractionation, and polishing of phenolic fractions and carotenoids. The separation efficiency (usually higher than 97%) of NF technology is high according to the low pore size of NF membranes, but the low temperature in process separation also contributes to the separation of thermolabile compounds. Therefore, this paper reviews the ongoing cases of studies reporting the successful separation and polishing of phenolic fractions and carotenoids from distinct sources. In particular, we have focused our attention on the main interactions during the separation process and the drawbacks and advantages of using membranes for such a case study.
From Theory to Action: A Saudi Arabian Case Study of Feminist Academic Activism against State Oppression
Authors: Sirri Lana
Published: February 2024

This article explores the intricate landscape of women’s rights in Saudi Arabia, an authoritarian state within the Gulf Cooperation Council countries (GCC), where the pursuit of modernization strategically utilizes women’s issues as symbols of national identity and markers of progress. The article focuses on the transformative potential of academic activism, exemplified by the work of Hatoon Ajwad al-Fassi, in countering oppression against women. It demonstrates how women navigate the realms of academia and activism to reshape gender dynamics and shape their nation’s modernization trajectory. By emphasizing the critical intersection between academic inquiry and activism, this article dispels the misconception that academia and activism are mutually exclusive. In contexts such as Saudi Arabia, where women’s rights face suppression, this intersection emerges as imperative for informed research and frontline advocacy, effectively addressing state-sponsored violence. Furthermore, this article critically evaluates the persistent challenge of feminist neo-Orientalist scholarship, which often distorts the depiction of Saudi women’s experiences. It offers a contribution to a nuanced understanding of women’s theorization that includes the ethico-political context within which women operate.
Exploring the Impact of Charging Behavior on Transportation System in the Era of SAEVs: Balancing Current Request with Charging Station Availability
Authors: Zhu Yi , Ye Xiaofei , Yan Xingchen , Wang Tao , Chen Jun , Zheng Pengjun
Published: February 2024

Shared autonomous electric vehicles (SAEVs) can offer safer, more efficient, and more environmentally friendly real-time mobility services with advanced autonomous driving technologies. In this study, a multi-agent-based simulation model considering SAEVs’ vehicle range and charging behavior is proposed. Based on real-world datasets from the Luohu District in Shenzhen, China, various scenarios with different fleet sizes, charging rates, and vehicle ranges are established to evaluate the impact of these parameters on parking demand, charging demand, vehicle miles traveled (VMT), and response time in the era of SAEVs. The results show there would be much more charging demand than parking demand. Moreover, a larger fleet size and longer vehicle range would lead to more parking demand, more charging demand, and more VMT while increasing the charging rate can dramatically reduce the charging demand and VMT. Average response time can be reduced by increasing the fleet size or the charging rate, and a larger vehicle range leads to longer response time due to the longer time spent recharging. It is worth noting that the VMT generated from relocating from the previous request destination to the origin of the upcoming request accounts for nearly 90% of the total VMT, which should be addressed properly with appropriate scheduling. A charging policy considering current requests and the availability of charging stations was proposed and verified in terms of reducing the response time by 2.5% to 18.9%.
Understanding the Role of Smart Specialization Strategies (S3) within a Regional Innovation System: Evidence from Digital Industries in the Yangtze River Delta, China
Authors: Yue Zhen , Zhang Meisha , Yang Shuran , Zhao Kai
Published: February 2024

In response to Boschma’s concern that the implications of relatedness- and unrelatedness-based diversification strategies lack empirical evidence at disaggregated levels and in the context of the Global South, this study generates a unique dataset at the city level and explores how these smart specialization strategies (S3) may explain digital industry innovations within a specific regional innovation system, i.e., the Yangtze River Delta, China. The findings reveal that both relatedness density and knowledge complexity play a positive role in explaining digital industry innovations. However, the relationship between relatedness and knowledge complexity and its interactive effects on innovation performance are less straightforward. In our study, we found that efficient cooperation between relatedness and complexity can only be achieved if the level of government intervention is moderate. Therefore, the discussion of S3 focuses on more than the dichotomous argument between relatedness and unrelatedness. Many socio-economic factors also impact the effectiveness of these theoretical components within different innovation systems, which are largely overlooked by present studies.
Design and Implementation of Workshop Virtual Simulation Experiment Platform Based on Digital Twin
Authors: Yan Jihong , Li Xiang , Ji Siyang
Published: February 2024

In an era where countries worldwide are emphasizing the process of educational informatization, traditional experimental teaching methods encounter inherent limitations, such as constraints related to the availability of experimental sites and the amount of experimental equipment. Consequently, it becomes a challenge to provide students with an unconstrained, open, and collaborative experimental environment. The digital twin, as a pivotal technology for achieving interactive mapping of the physical world and the information world, possesses attributes characterized by real time interactivity and the seamless fusion of virtual and tangible elements. As a result, various virtual simulation experimental teaching platforms grounded in digital twin technology are now extensively integrated into talent development initiatives. In the context of the “Production Planning and Control” course at Harbin Institute of Technology (HIT), the virtual simulation experimental teaching method is examined, leading to the creation of a virtual simulation instructional platform that blends the virtual and tangible realms, thanks to the foundation of digital twin technology. The virtual simulation experimental teaching platform detailed in this paper, specifically designed for optimizing scheduling within assembly line workshops, represents a pioneering model practice in the integration of digital twin technology into workshop-based experimental instruction and assumes an influential role in enhancing students’ grasp of theoretical knowledge and their capacity for practical innovation.
Game Models for Ordering and Channel Decisions of New and Differentiated Remanufactured Products in a Closed-Loop Supply Chain with Sales Efforts
Authors: Gao Niu , Qu Linchi , Jiang Yuantao , Hou Jian
Published: February 2024

Environmental responsibility and economic benefits have promoted the development of closed-loop supply chains (CLSCs), and shortages and channels are considered to be two important issues in a CLSC. This paper explores the ordering and channel decisions in a CLSC with new and differentiated remanufactured products; considers the price and sales-effort-dependent demands, as well as the proportion of emergency orders determined by emergency order costs and backorder losses; and establishes integrated and decentralized CLSC game models. We introduce a stochastic sales effort, which affects two types of products. The numerical results show that sales effort and the order quantity of new and remanufactured products exhibit concave and convex functions, respectively. The upper limit of sales effort has a greater impact on supply chain decisions. High sales efforts can serve as a means of coordinating dispersed supply chains. Moreover, in different cases, the decisions of an integrated channel are better than those of a decentralized channel. Finally, whether the supply chain adopts an emergency order strategy depends on the relative cost of emergency orders and out-of-stock costs. According to this research, some management insights are also provided.
Kinematic Assessment of Fine Motor Skills in Children: Comparison of a Kinematic Approach and a Standardized Test
Authors: Niechwiej-Szwedo Ewa , Brin Taylor A. , Thompson Benjamin , Christian Lisa W. T.
Published: February 2024

Deficits in fine motor skills have been reported in some children with neurodevelopmental disorders such as amblyopia or strabismus. Therefore, monitoring the development of motor skills and any potential improvement due to therapy is an important clinical goal. The aim of this study was to test the feasibility of performing a kinematic assessment within an optometric setting using inexpensive, portable, off-the-shelf equipment. The study also assessed whether kinematic data could enhance the information provided by a routine motor function screening test (the Movement Assessment Battery for Children, MABC). Using the MABC-2, upper limb dexterity was measured in a cohort of 47 typically developing children (7–15 years old), and the Leap motion capture system was used to record hand kinematics while children performed a bead-threading task. Two children with a history of amblyopia were also tested to explore the utility of a kinematic assessment in a clinical population. For the typically developing children, visual acuity and stereoacuity were within the normal range; however, the average standardized MABC-2 scores were lower than published norms. Comparing MABC-2 and kinematic measures in the two children with amblyopia revealed that both assessments provide convergent results and revealed deficits in fine motor control. In conclusion, kinematic assessment can augment standardized tests of fine motor skills in an optometric setting and may be useful for measuring visuomotor function and monitoring treatment outcomes in children with binocular vision anomalies.
Research on Cooperative Control of Multiple Intelligent Networked Vehicles Based on the Improved Leader–Follower Method
Authors: Wang Jingyue , Lv Yanchang , Shan Xiaomeng , Wang Haotian , Wang Junnian
Published: February 2024

In order to study the group cooperative control method of multiple intelligent networked vehicles, the multiple intelligent networked vehicles can move in the form of a fleet. Based on the leader–follower method, the paper optimizes the control effect of the leader–follower method by solving the error transmission phenomenon in the leader–follower method. In this paper, the modeling of the multiple intelligent connected vehicle adopts the vehicle dynamics model and the Magic Formula/Swift Magic tire model, and adopts the model predictive control (MPC) dynamics trajectory tracking controller for control. Through the CarSim–Simulink multi-vehicle dynamics co-simulation platform established in this paper, the group cooperative control experiments of multiple intelligent networked vehicles under different working conditions were carried out for simulation verification. The analysis results show that the maximum average error of the proposed method decreases from 8.802 to 0.094 in the case of straight line and 0.669 to 0.379 in the case of curve tracking, which proves that the method can effectively reduce the transmission of errors.
Joint Estimation of State of Charge and State of Health of Lithium-Ion Batteries Based on Stacking Machine Learning Algorithm
Authors: Dong Yuqi , Chen Kexin , Zhang Guiling , Li Ran
Published: February 2024

Conducting online estimation studies of the SOH of lithium-ion batteries is indispensable for extending the cycle life of energy storage batteries. Data-driven methods are efficient, accurate, and do not depend on accurate battery models, which is an important direction for battery state estimation research. However, the relationships between variables in lithium-ion battery datasets are mostly nonlinear, and a single data-driven algorithm is susceptible to a weak generalization ability affected by the dataset itself. Meanwhile, most of the related studies on battery health estimation are offline estimation, and the inability for online estimation is also a problem to be solved. In this study, an integrated learning method based on a stacking algorithm is proposed. In this study, the end voltage and discharge temperature were selected as the characteristics based on the sample data of NASA batteries, and the B0005 battery was used as the training set. After training on the dataset and parameter optimization using a Bayesian algorithm, the trained model was used to predict the SOH of B0007 and B0018 models. After comparative analysis, it was found that the prediction results obtained based on the proposed model not only have high accuracy and a short running time, but also have a strong generalization ability, which has a great potential to achieve online estimation.
Examination of Damage Processes of Orthopaedic Orthosis
Authors: Vincze Kata Dóra
Published: February 2024

In my work, I examined a palmar forearm splint manufactured by a Hungarian medical device producer. Considering the test results that come from failure analysis, material composition analysis, hardness testing, macroscopic and microscopic examination, scanning electron microscopy and implemented on a product damaged under real conditions, I concluded that the medical device, returned by the customer, had broken prematurely due to improper use. The results of the fatigue test carried out as a physical simulation of the load show that the medical device can withstand more than 850 cycles of micromotion without any problems. Macrofractographic comparisons were performed between the fracture surfaces of the device returned by the users and those of that dismantled under laboratory conditions, thus confirming the validity of my measurement.
RUPTURA DO LIGAMENTO CRUZADO CRANIAL ESQUERDO EM CÃO CORRIGIDA PELA TÉCNICA DE OSTEOTOMIA DE NIVELAMENTO DO PLATÔ TIBIAL (TPLO)  RELATO DE CASO
Authors: Grillo da Silva Raphael , Da Silva Vitória Valente , Segala Renato Dalcin
Published: February 2024

A osteotomia de nivelamento do platô tibial (TPLO) é uma das técnicas mais utilizadas atualmente no tratamento da ruptura do ligamento cruzado cranial (RLCCr). A técnica promove uma estabilidade articular alterando a geometria da tíbia proximal, neutralizando as forças que agem cranialmente sobre a articulação. No caso descrito observou-se o uso da TPLO em um cão com RLCCr com ângulo do platô tibial (APT) de 31º e após o procedimento, de 7º e o animal apresentou apoio precoce do membro após a cirurgia. A TPLO mostrou-se efetiva no tratamento da RLCCr devido ao rápido retorno funcional do membro operado e comprovou que uma variação do APT final entre 5º e 7º é eficaz para a técnica. O presente trabalho objetiva relatar o caso de um cão com RLCCr e avaliar a eficiência da TPLO como tratamento considerando a técnica cirúrgica, resultados e o tempo do retorno funcional do membro operado.
Dépistage et diagnostic de la surdité chez le chien
Authors: Simeon Ludovic
Published: February 2024

Dépister et diagnostiquer la surdité chez le chien repose sur l’enregistrement des potentiels évoqués auditifs du tronc cérébral ou PEA. La surdité peut se classer selon cinq critères : son déterminisme, son moment d’apparition, sa sévérité, sa symétrie et selon l’étage anatomo-fonctionnel atteint. Chez les races à risque de surdité héréditaire, à robes blanche ou pie (Dalmatien, Dogue argentin, Bull terrier, Bouvier australien, …), ou merle (Border collie, Berger australien, …), le dépistage des reproducteurs et des nouveau-nés doit être encouragé. Le dépistage permet de diminuer la prévalence de la surdité dans ces races. Lors de surdité aiguë chez le chien, l’atteinte auditive doit être confirmée par l’enregistrement des PEA et une cause lésionnelle doit être recherchée par imagerie médicale (tomodensitométrie et/ou imagerie par résonance magnétique). Des causes acquises de surdité sont à rechercher : inflammatoire (otite moyenne notamment), toxique (ou ototoxicité), traumatique, dégénérative (ou presbyacousie). Lors de surdité aiguë chez le chien, une surdité bilatérale totale est le plus souvent irréversible. Mots clés : surdité, chiens, potentiels évoqués auditifs
Le Disexapaton de Ménandre, modèle des Bacchides de Plaute
Authors: Jacques Jean-Marie
Published: February 2024

First, a few general remarks on the specific characteristics of Menander's (Nea's) new Attic comedy and on Roman comedies which often borrowed from models (Palliata), reflections on fr. 4 of the Disexapaton translated by Plautus in lines 816-817 of the Bacchides and also the reason why the main character's name was changed from Syrus to Chrysales. We will then proceed with a comparison between the retrieved fragments of the Greek play and the corresponding extracts of the Roman play, this will concern the economy of the plot using the differences in structure of the genres to which both comedies belong. The analysis underlines the faithfulness of the Plautinian adaptation.
Le chapitre sur la dialectique du De nuptiis Philologiae et Mercurii de Martianus Capella dans la dialectique latine
Authors: Ferré Michel
Published: February 2024

In the 5th century A.D. Martianus Capella wrote De nuptiis Philologiae et Mercurii which includes an encyclopaedia of the seven liberal arts. Before the Senate of the Gods, Dialectica takes the floor and gives an account on dialectics or logics. In this chapter of his book Martianus is not creative but merely compiles some works that are already compilations themselves. Unsurprisingly, we find a combination of elements of the Aristotelian and of the stoical traditions. Nevertheless, Martianus Capella's summary is unusual because the contents -which are mainly Aristotelian -are divided into a five part plan stemming from stoical dialectics.
Le gouvernement fédéral de la ligue latine sous la royauté romaine : dictateur fédéral, roi fédéral, «hegemôn toû éthnos»
Authors: Liou Bernadette
Published: February 2024

Le dictateur latin a servi de modèle au dictateur romain ; il a été plus ou moins confondu avec un officier royal : le magister populi. D’où les incertitudes de la tradition sur la première dictature romaine. On connaît plusieurs rois fédéraux de la Ligue Latine : ce sont apparemment des prêtres. Latinus Silvius, fondateur des Prisci Latini, est l’archétype mythique de ces rois-prêtres, liés à la forêt. Le Rex Nemorensis en est la version aricine. Le roi fédéral latin doit être assez semblable au flamen Dialis romain, double non guerrier du roi. Les trois rois étrusques de Rome, qui deviennent de fait rois de la Ligue, l’élargissent en l’ouvrant à des peuples non-latins et se font saluer du titre nouveau de hegemôn toû éthnous.
Phantasia et mimesis chez Aristote
Authors: Veloso Cláudio William
Published: February 2024

Certains commentateurs de langue française se sont récemment prononcés en faveur de l'existence d'un rapport entre les notions de φαντασία et de μίμησις chez Aristote. Bien qu'un tel rapport existe, ces commentateurs en ont parlé en des termes très discutables. En éclaircissant tout d'abord la notion de μίμησις, à savoir la notion de simulation, cet article essaie de montrer sur quelles bases on peut parler de ce rapport. Celui-ci consisterait dans l'usage que l'intellect fait des φαντάσματα, sur le mode de la simulation.
Une inscription de Kéramos, le coureur Politès et la Carie «Trachée»
Authors: Strasser Jean-Yves
Published: February 2024

Dans une inscription de Kéramos, on reconnaît la mention d’un concours grec organisé à Apollonia d’Illyrie. Des suppléments nouveaux ou mieux étayés appuient l’idée que ce palmarès est bien celui de l’olympionique Politès de Kéramos. Le passage que consacre Pausanias à ce coureur est fortement corrompu. Il faut du moins rétablir l’adjectif τραχεία appliqué à la Carie, et que Pausanias a certainement empmnté à une épigramme qu’il a lue sur la base de Politès à Olympie. Cette Carie «escarpée » est la côte bordée de falaises au Nord du golfe Céramique.
Banqueteurs aux mains vides. Absences, immatérialités, gestes vides. A propos de quelques images du banquet funéraire étrusque
Authors: Jannot Jean-René
Published: February 2024

On some tarquinian tomb paintings, banquetors are shown making the specific gesture of holding a drinking cup, an egg or a fruit, but their hands are empty ! Are these representations the result of a trite omission or are they indicative of a precise meaning ? Is this gesture destined to take his efficacity through the presence of real cups, eggs and fruits in the tomb, in order to assume a permanent revitalizing power, or does this strange absence evoque a mystic dionysiac symposion in the netherworld ? Anyway, these paintings are not only representations of a social rite, but take on a mystic role.
La cocina del amor : alimentos afrodisiacos en la antigua Grecia
Authors: García Soler María José
Published: February 2024

Le lien entre la nourriture et le sexe semble être présent tout au long de l’histoire et la Grèce ancienne n’est pas une exception. La présence du sexe dans le cadre du banquet est bien connue, mais il faudrait souligner aussi que les anciens attribuaient à quelques aliments des propriétés aphrodisiaques (c’est le cas des bulbes du muscari à toupet, des œufs et des fruits de mer), qui ont éveillé l’intérêt scientifique des médecins, mais en même temps ont offert aux auteurs comiques la base pour des plaisanteries et des moqueries de toute sorte.
L’évocation de la trahison dans l’iconographie monétaire à la fin de la République romaine et au début du règne d’Auguste
Authors: Couhade-Beyneix Cynthia
Published: February 2024

This study presents an iconographie analysis of the currencies evoking the topic of treason. Even if these strike monetary are very few, they are particularly interesting, because they represent a contemporary documentation of the facts. Moreover, they testify to behaviours which are proposed in the literary sources. The examination of the images and the legends revealed that treason was approached several manners and that there was not stereotyped image, in particular because it acts of an abstract concept which does not have personification.
Le participe adverbial dans le corpus johannique
Authors: Pastorelli David
Published: February 2024

A partir d’une classification des participes dans l’évangile et les épîtres de Jean, cet article entend vérifier que le participe « adverbial », c’est-à-dire accolé à un verbe, entretient avec ce dernier une relation temporelle qui est fonction de sa position : si le participe précède le verbe principal l’action tend à être décrite comme antécédente, et si le participe suit le verbe principal l’action tend à être vue comme concomitante, voire subséquente. Cette règle syntaxique, vérifiée dans plus de neuf cas sur dix dans le corpus johannique, élargit la conception selon laquelle le participe aoriste décrirait une action antérieure au verbe principal et le participe présent une action simultanée.
L’individu et la cité quelques stratégies identitaires et leur contexte
Authors: Duplouy Alain
Published: February 2024

The exact meaning of an identity affirmation can only be understood by focusing on the context in which it is proclaimed. Actually the same statement (discursive or material) offers different meanings. Whether claimed individually or collectively, the nobility of birth may be used as a strategy of social self-representation or as a tool of imperialist policy. In the same way, the artistic aspect of an archaic statue potentially contains several affirmations concerning the identity of the owner, from civic affiliation to status achievement.
Les Alpes, l'Étrurie et le Picenum dans le Bellum Spartacium
Authors: Piccinin Pierre
Published: February 2024

In several published studies, the author has shown the important role played by Dionysism and the Italians during the events of the Bellum Spartacium. This war, considered a "servile war" by the opinio romana, can be seen as a proper crusade against Rome. It is in this context that the course taken across Italy by the army of Spartacus can be explained : in fact, this route which is seemingly chaotic and haphazard, crosses in systematic fashion the regions which had been hostile to Rome since the Social War and also those where the largest and most active Dionysiac communities lived. It was there that Spartacus could expect to receive the support he needed for the success of his plan to bring about the downfall of Roman supremacy.
Challenges for Assessing the Influence of Spirituality on Moral Development – In Search of a Scale
Authors: de Gerone Lucas Guilherme Tetzlaff , Raphael Bataglia Patrícia Unger
Published: February 2024

This article aims to examine approaches to the assessment and measurement of spirituality, to establish correlations with moral development and ethical education. The methodology employed consisted of a literature review conducted in the databases of CAPES, SCIELO, BDTD, and Google Scholar. The results of this research revealed the existence of 50 measures intended for the assessment of spirituality and religiosity. Among these measures, the stages of Fowler's Faith and the PCBS stand out, both selected for detailed analysis due to their proximity to the assessment and measurement of spirituality, as well as their relevance in the moral and educational context. However, it is prudent to consider that the development of a more specific scale, focused on spirituality, moral development, and education, is still necessary to address the nuances and particularities of the Brazilian reality.
Neraca Air Sungai Karang Anyar Sebagai Sumber Air Baku IPA Kampung Bugis
Authors: Handayani Rosmalia , Indah Pertami Sutika Surya , Amiruddin Aswar
Published: February 2024

IPA Kampung Bugis service area includes West Tarakan Sub-district and Central Tarakan Sub-district. These two sub-districts are the ones with the highest population density in the city of Tarakan, so in terms of water supply, it is necessary to carefully consider to avoid water deficits if there is no rainfall in Tarakan. This study aims to calculate the water balance of the Karang Anyar River as the raw water source for the IPA Kampung Bugis. The method used for availability calculations is the NRECA method. From the analysis of the reliable discharge Q90 of the Karang Anyar River using the NRECA method, an average Q90 reliable discharge of 55 liters/second is obtained, while based on the analysis of water needs in 2031, it is 295,852 liters/second. These results indicate that the Karang Anyar River is unable to meet the water needs in the IPA Kampung Bugis service area in the city of Tarakan