bluuebunny/crossref_metadata_2025_split huggingface dataset:
Revolutionizing photovoltaic consumption and electric vehicle charging: A novel approach for residential distribution systems
Authors: Meng Qinglin , Tong Xinyu , Hussain Sheharyar , Luo Fengzhang , Zhou Fei , Liu Lei , He Ying , Jin Xiaolong , Li Botong 
Published: August 2024

AbstractElectric vehicles (EVs) and small photovoltaic (PV) installations advance residential power grids by lowering charging costs and fostering eco‐friendly operations. Yet, the variable nature of EV charging presents challenges to grid reliability. This research introduces a Monte Carlo‐based simulation for predicting EV charging loads and a systematic charging method that integrates a ‘green electricity’ pricing scheme with a joint optimization model for PV and EV management. By applying an improved ant lion optimizer (IALO) algorithm enriched with differential evolution features, an optimization strategy that markedly enhances grid performance is devised. In a park scenario, this ‘green electricity’ model reduced the mean square error of EV charging load by 11.82%, smoothed the power load curve, and improved grid stability. When compared with particle swarm optimization (PSO) and grey wolf optimizer (GWO) algorithms, the IALO algorithm boosted overall revenue by 16.8% and 12.8%, increased PV utilization by 162.3% and 37.1%, and significantly cut carbon emissions by 159.6% and 31.6%, respectively. These outcomes affirm the financial, environmental, and functional benefits of our proposed approach.
Speaking Up and Being Heard: The Importance of Functional Communication and Discourse Principles in Aphasia Intervention
Authors: Armstrong Elizabeth , Hersh Deborah 
Published: August 2024

AbstractThis article acknowledges Audrey Holland's influence on aphasiology as it specifically relates to the emergence of a strengths-based perspective on the everyday communication of people with aphasia. We explore a historical perspective, as well as current ways in which everyday communicative events are approached in both clinical and research practice. The term “functional communication” is synonymous with Audrey's work, with linguistically-based discourse analysis and therapy both viewed as natural companions and extensions of the concept within aphasiology. Audrey's focus on the interactional side of communication and psychosocial impacts of aphasia, as well as her expertise in analysis and measurement, contributed to the coalescing of impairment-based and social communication approaches, encompassing a true sense of humanity and connectedness. Her application of these in international contexts was also noteworthy. In this article, we hope to capture principles of aphasia management that underpin current clinical practice, and also move beyond the traditional clinic context to consider aphasia groups that have had such a key role in promoting successful social communication by and with people with aphasia. We suggest future directions to further promote the principles advocated by Audrey Holland in assisting people with aphasia to move forward with confidence with their conversation partners, friends, and communities.
Thin or thick? Populist and radical right politics across European cities, suburbs, and countryside
Authors: Crulli Mirko 
Published: August 2024

AbstractThe surge of populist and radical right phenomena reshaped European political geography. Yet the connections between places of residence and populist or radical right politics tended to be neglected until recently. This paper addresses the gap by exploring how residency relates to support for populism and the radical right in contemporary Europe. Focusing on the distinction between ‘cities’, ‘towns–suburbs’, and ‘countryside’, I conduct an individual-level investigation of populist and radical right votes and attitudes across different residential contexts. The analysis is based on European Social Survey data (2020–22) from 23 countries, in both Western (WE) and Central–Eastern (CEE) Europe. The key finding is that the cleavage between cities and suburban–rural areas is much more related to the thick ideological underpinnings of the radical right—authoritarianism and nativism—than the thin, purely populist, dimension. Nativism particularly is stronger the more rural the place of residence, irrespective of the individual’s socio-economic profile, political orientations, the extent to which their region is left-behind, and whether they live in WE or CEE. Hence, future research on the geographical polarization of politics may turn its attention to the radical right, more than to populism per se.
A new bilevel algorithm for UUV global path planning
Authors: Pan Xin , Feng Guoli , Huang Lin , Zeng Haiyan 
Published: August 2024

Global path planning is one of the key technologies in unmanned underwater vehicle (UUV) intelligent control. At present, research on UUV global path planning technology tends to choose long-distance and large-scale 3D space as the research environment, which leads to a sharp increase in the amount of data and search range for 3D spatial path planning. Therefore, an efficient and relatively small data volume 3D spatial path planning method is an urgent problem that needs to be solved for UUV engineering applications. To solve this problem, a new bilevel path planning algorithm for UUV is proposed. In the upper level of the algorithm, a Max Min Ant System-Elite Genetic (MMAS-EGA) algorithm is put forward, which is a hybrid ant colony optimization/genetic algorithm, in order to improve the convergence speed of the algorithm. In the lower level of the bilevel algorithm, a function optimization algorithm and the MMAS algorithm are used to minimize the number of variables to be optimized. To verify the effectiveness of the algorithm, we conducted simulation experiments in a three dimensional environment. The simulation results in the three-dimensional environment show that, compared with the existing bilevel algorithm, the time to search the global optimal solution is reduced by 9%, and the number of iterations is reduced by 4.4%. Furthermore, the new algorithm we proposed is more efficient and suitable for global path planning for different tasks.
AFRIMETS supplementary comparison on calibration of dial gauge
Authors: ElMelegy Ahmed , Mechkour Lhossain , Date Paul , Obayi Bede , Gergiso Tadesse , Tesfaye Birhan , Bore Calvin , James Joseph , Charles Angela , Mutale Daniel , Gandah Burnhard , Kame Modiriemang , Ntima Pamidzani , Pryam Tomeswar , Pallut Ramasawmy , Nzimande Zanele , Masina Patrick 
Published: August 2024

Main text
National Metrology Institutes from 11 African countries, namely Egypt, Morocco, Nigeria, Ethiopia, Kenya, Tanzania, Zambia, Zimbabwe, Botswana, Mauritius and South Africa have participated in an international supplementary comparison on the calibration of Dial Indicators.
This comparison was a part of larger supplementary comparison between 13 African countries for the calibration of hand measuring instruments. This larger comparison which was carried out during the period between December 2019 - December 2022 has been piloted by NIS, Egypt and has been registered in BIPM-KCDB database on December 2019. The artifacts have been prepared by NIS, Egypt and measured before sent to circulate between all participant countries in round-robin scheme and returned back again for NIS, Egypt where a final measurement was made for stability check.
The main purpose of these comparisons is to support submission of CMCs for calibration of hand length measuring instruments in BIPM-KCDB.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCL, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
AFRIMETS supplementary comparison on calibration of external micrometer
Authors: ElMelegy Ahmed , Mechkour Lhossain , Date Paul , Obayi Bede , Gergiso Tadesse , Tesfaye Birhan , Bore Calvin , James Joseph , Charles Angela , Mutale Daniel , Gandah Burnhard , Kame Modiriemang , Ntima Pamidzani , Pryam Tomeswar , Pallut Ramasawmy , Nzimande Zanele , Masina Patrick 
Published: August 2024

Main text
National Metrology Institutes from 12 African countries, namely Egypt, Morocco, Ghana, Nigeria, Ethiopia, Kenya, Tanzania, Zambia, Zimbabwe, Botswana, Mauritius and South Africa have participated in an international supplementary comparison on the calibration of External Micrometer.
This comparison was a part of larger supplementary comparison between 13 African countries for the calibration of hand measuring instruments. This larger comparison which was carried out during the period between December 2019 - December 2022 has been piloted by NIS, Egypt and has been registered in BIPMKCDB database on December 2019. The artifacts have been prepared by NIS, Egypt and measured before sent to circulate between all participant countries in round-robin scheme and returned back again for NIS, Egypt where a final measurement was made for stability check.
The main purpose of these comparisons is to support submission of CMCs for calibration of hand length measuring instruments in BIPM-KCDB.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCL, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
AFRIMETS supplementary comparison on calibration of caliper
Authors: ElMelegy Ahmed , Mechkour Lhossain , Date Paul , Obayi Bede , Gergiso Tadesse , Tesfaye Birhan , Bore Calvin , James Joseph , Charles Angela , Mutale Daniel , Gandah Burnhard , Kame Modiriemang , Ntima Pamidzani , Pryam Tomeswar , Pallut Ramasawmy , Nzimande Zanele , Masina Patrick 
Published: August 2024

Main text
National Metrology Institutes from 12 African countries, namely Egypt, Morocco, Ghana, Nigeria, Ethiopia, Kenya, Tanzania, Zambia, Zimbabwe, Botswana, Mauritius and South Africa have participated in an international supplementary comparison on the calibration of caliper.
This comparison was a part of larger supplementary comparison between 13 African countries for the calibration of hand measuring instruments. This larger comparison which was carried out during the period between December 2019 - December 2022 has been piloted by NIS, Egypt and has been registered in BIPM-KCDB database on December 2019. The artifacts have been prepared by NIS, Egypt and measured before sent to circulate between all participant countries in round-robin scheme and returned back again for NIS, Egypt where a final measurement was made for stability check.
The main purpose of these comparisons is to support submission of CMCs for calibration of hand length measuring instruments in BIPM-KCDB.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCL, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Abnormal behavior of the plasma potential in an inductively coupled plasma with a DC-biased grid
Authors: Kim Min-Seok , Jung Jiwon , Park Junyoung , Chung Chin-Wook 
Published: August 2024

Abstract
The formation of the plasma potential and the generation mechanism of very low electron temperature plasma are investigated in an inductively coupled plasma with a DC biased grid. The electron temperature is controlled from 2.4 eV to 0.2 eV according to the grid voltage (10 V to −40 V). Interestingly, when the grid voltage is negatively biased, the electron temperature decreases and the plasma potential decreases with the grid voltage, but then increases below −10 V which is abnormal. This behavior of the plasma potential is abnormal since the plasma potential is generally proportional to the electron temperature. The main reason for the abnormal increase of the plasma potential is the difference in the flux of electrons and ions below the grid. As the grid is negatively biased, the electron flux is greatly reduced compared to the ion flux, leading to an increase in plasma potential. After −20 V, the plasma potential saturates, because although the number of electrons entering the grid decreases, the electron flux is maintained by secondary electrons generated in the grid mesh. This abnormal increase in plasma potential decreases with pressure. An increase in plasma potential with gas species is also observed. The same behavior is observed for Ar, He, and N2 gases. The abnormal behavior of the plasma potential is explained with the current continuity.
Design of diesel engine vibration signal acquisition system based on Zynq
Authors: Wang Huishuai , Gao Haibo , Zuo Wen 
Published: August 2024

Abstract
The vibration signal of a diesel engine contains a large amount of fault information, and an accurate collection of vibration signals will provide reliable data support for diesel engine condition monitoring. This paper designs a diesel engine vibration signal acquisition system based on the powerful Zynq chip. IEPE piezoelectric acceleration sensors are selected to collect diesel engine vibration signals, and a signal conditioning circuit is designed to filter out interference during signal transmission using the characteristics of differential signals and to adjust the voltage amplitude of the signal to ensure compliance with the input voltage level requirements of the AD conversion module. Considering the excellent performance of the AD7771, it is selected as the AD conversion chip, and the peripheral circuit design is completed. With the help of Vivado software, the software and hardware design based on the Zynq chip is completed, controlling the AD7771 to sample 8 channels of vibration signals. Finally, a signal conditioning circuit simulation model is established in Multisim 14.1 software to verify its good performance, and upper computer software is developed to monitor the fault information of the diesel engine.
Image segmentation based on improved hybrid krill herd algorithm
Authors: Zhang Peng , Tian Ye 
Published: August 2024

Abstract
Image segmentation is an important problem in the field of image processing. Traditional multi-threshold image segmentation faces the problems of inefficiency and lack of real-time performance. In order to improve these problems, a Kapur multi-threshold segmentation algorithm based on the improved hybrid krill herd algorithm is proposed, which adopts a novel population iterative approach limited to the top krill to effectively alleviate the phenomenon of excessive aggregation of krill. Building on this foundation, the differential evolutionary algorithm is combined with the krill herd algorithm, which provides a sufficient search range to strengthen the ability of the algorithm to jump out of the local optimum. The experimental results of multi-threshold segmentation on three classical test images show that the proposed improved algorithm can achieve higher segmentation accuracy and quality, and the convergence rate is mostly above 90%, which verifies the reliability and effectiveness of the algorithm in multi-threshold image segmentation problems.
Study on environmental monitoring classification system based on improved bayesian algorithm
Authors: Guo Xiaoyan 
Published: August 2024

Abstract
The commonly used methods for classifying water quality data are based on water quality parameters. The naive Bayesian classification method can be applied to substitute different evaluation criteria and selected water quality parameters for different water bodies. Compared to other water quality data classification methods, naive Bayesian classification methods have advantages such as simple calculation, high classification accuracy, and strong universality. However, this method overlooks the correlation between various water quality parameters and categories. To address the issues of poor universality, computational complexity, and low accuracy of traditional water quality data classification methods, a water quality data classification method based on weighted naive Bayes is proposed. This method comprehensively considers the impact of water quality attributes and their values on the classification results and replaces the original naive Bayes with weighted attribute conditional probabilities to make the classification results as close as possible to the actual category of the sample. The results indicate that this method exceeds 94% accuracy and can be directly utilized as a water quality classification module in water quality monitoring systems.
Improved image segmentation method based on Otsu thresholding and level set techniques
Authors: Jing Zhipeng , Tang Bo 
Published: August 2024

Abstract
Image segmentation is a complex task in the field of image processing and computer vision, as it faces challenges such as noise, low contrast, and intensity variations. Due to the simplicity, efficiency, and ease of implementation of the Otsu algorithm, as well as its ability to improve accuracy in complex scenarios and enhance robustness against noise and lighting variations, a new grayscale pixel probability selection method has been proposed based on the classic Otsu method and Chan-Vese level set. By applying the Bayesian probability formula, the probability of a grayscale pixel is determined by the global prior and non-local prior. This improved Otsu method is combined with the Chan-Vese level set curve evolution method, resulting in a better image segmentation approach. Comparative experiments have demonstrated the advantages of this method.
Some properties of effect algebra
Authors: Li Wei , Han Wen , Sun Yiyue , Li Jiangtao , Wang Jiaying 
Published: August 2024

Abstract
As a kind of algebraic structure, effect algebra is the foundation of quantum structure and quantum measurement. Sequential effect algebra is a special type of effect algebra that plays an important role in the fundamental research of Quantum Computation. Therefore, we study the related theory of effect algebra in this paper. Finally, four properties and special examples of effect algebra and sequence effect algebra are presented, as well as three properties of effect algebra level sum.
Investigation of a cross-flow wind turbine with a hybrid frontal guiding device
Authors: Iliev Rossen , Tsalov Tsvetan 
Published: August 2024

Abstract
The research results of a new type of frontal guide device for vertical axis wind turbines are presented. The guiding device is composed of cylindrical guide vanes and deflector. The design is derived from two different guiding devices: cylindrical guiding apparatus and so-called omni-directional guiding apparatus, which consists of plates evenly placed around the turbine’s runner. The experiments were carried out on the laboratory test bench No. 7 (wind turbines) in the Laboratory of Hydropower and Hydraulic Turbomachinery at the Technical University of Sofia. According to the obtained data, the new guiding device increases the efficiency of the turbine up to 2.5 times. A comparison is made between the obtained operating curves and those of similar wind turbines, published in various reputable journals.
CFD Analysis of the Behavior of a Submersible Vehicle in Multiple Flow Directions and Elevator and Rudder Fin Configurations
Authors: Todorov Georgi , Kamberov Konstantin , Zlatev Blagovest 
Published: August 2024

Abstract
Presented in the paper is a CFD finite element analysis of a submersible vehicle used for the imaging of plankton for fisheries research. Researched are different fluid flow conditions – different orientations of the flow relative to the submersible vehicle and different configuration of the elevator fin and the rudder fin with the goal to calculate the different pressure center positions in order to form curves and compare the specified initial buoyancy and gravity centers. After determining of the metacentric lines in different rudder and fin configuration the conclusion is made that the submersible device will maintain stable equilibrium while changing direction for the analyzed fluid flows.
CFD virtual prototyping of a high temperature energy storage system
Authors: Tsekov R.P. 
Published: August 2024

Abstract
This paper presents a literature review of existing technological solutions for thermal energy storage in solid- or liquid-storage batteries. The lack of a comprehensive approach for the analysis of high-temperature single-chamber accumulators with solid heat storage media is defined. A concept for modeling and studying such a thermal accumulator is presented. A physical and numerical virtual model of a single-chamber thermal accumulator for high-temperature energy storage and dissipation, including for domestic purposes and heating, is built. Initial simulations show very good agreement of the numerical model with practice.
Quasi-three-dimensional modeling as an effective tool for studying flows in turbomachines
Authors: Terziev Angel , Potashev Andrey , Potasheva Elena , Khisameev Ibragim , Valeeva Yulia , Beloev Hristo , Iliev Iliya 
Published: August 2024

Abstract
The development of software tools for calculating the flow of liquid and gas (the so-called computational fluid dynamics (CFD)) makes it possible to calculate the characteristics of the gas flow in areas with an increasingly complex configuration. In particular, the use of CFD tools is increasingly used to determine the flow parameters in the flow parts of turbomachines, such as fans, pumps, turbines, axial and centrifugal compressors. Despite the wide possibilities of these methods, they have the disadvantage of being very time consuming when creating a new flow path of turbomachines and selecting the blade geometry due to the need for numerous intermediate calculations. From this point of view, the use of faster programs based on approximate flow models in the flow parts of turbomachines is quite justified. It is their use that allows you to choose the geometry of the flow path and blades, as close as possible to the desired aerodynamic requirements. In this paper, using the example of calculating the gas flow through the flow path of a Ts4-70 centrifugal fan, the possibilities of such a model are demonstrated.
Opportunities and challenges of converting coal-fired power plants to nuclear power plants
Authors: Petrov Petar , Boycheva Silviya 
Published: August 2024

Abstract
The constant increasing of world’s energy needs and meanwhile the adopted environmental protection policies in the last decade, have led to a reassessment of the sources and technologies used for production of thermal energy and electricity. The policy of carbon neutrality imposes the shut down and replacement of the most environmentally polluting power plants by 2050 which usually are Coal-Fired Power Plants (CPP). They could be replaced by Renewable Power Plants (RPP) or Nuclear Power Plants (NPP). The most promising is the conversion of CPP to NPP (C2N) using nuclear technologies and especially Small modular reactors (SMR) which are the most suitable for the task. This paper provides an overall assessment of the possibilities for C2N transformation with SMR, taking into account the aspects of site selection requirements, available water resources, the possibilities of using existing equipment, systems and infrastructure, the available nuclear technology, as well as non-technical factors. The different options for C2N are examined, focusing on retrofitting and repowering because both options could be the most beneficial ones according to the initial evaluations. However, they face many challenges to overcome due to the combination of different types of equipment that will have to operate with vastly different parameters than originally designed in the case of repowering. The available solutions are discussed here reading the level of development of SMR technologies and the possibilities for their industrialization in a short time, but also the most significant challenges and obstacles to the transformation of CPPs into NPPs.