scholarly journals Electric Vehicles: Bibliometric Analysis of the Current State of the Art and Perspectives

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 395
Author(s):  
Willams Barbosa ◽  
Thomaz Prado ◽  
Cleovano Batista ◽  
Julio César Câmara ◽  
Rodrigo Cerqueira ◽  
...  
Keyword(s):  
Bibliometric Analysis ◽  
Electric Vehicles ◽  
State Of The Art ◽  
Environmental Issues ◽  
Relevant Information ◽  
Analysis Tool ◽  
Current State ◽  
Technological Advances ◽  
Number Of Publications ◽  
And Storage

In order to gain a comprehensive view of electric vehicles (EVs) technologies and understand the emphasis of current research, this study evaluated the most relevant themes related to EVs through a bibliometric analysis using the keyword “electric vehicle” as the input. The Web of ScienceTM (WoS) database was used because it is considered ideal for bibliometric analysis. The VOSviewer software was adopted as a bibliometric analysis tool to visualize the networks of authors, countries, journals and keywords. The analysis carried out on 9 November 2021 retrieved a total of 29,304 documents in the period 2000 to 2021. The results show that in the last nine years the number of publications about EVs has grown significantly. The China is the leading nation in the field of EV research, contributing the largest number of publications in the world, with the main authors and research institutions involved. The journal Energies stands out as the main publishing periodical. Keyword analysis showed that studies on EVs in the last two decades have focused on themes related to energy management and storage, infrastructure and charging systems and environmental issues. The bibliometric analysis presented provides relevant information on the main themes studied about EVs and technological advances in development.

scholarly journals Soft Threshold Ternary Networks

2020 ◽  
Author(s):  
Weixiang Xu ◽  
Xiangyu He ◽  
Tianli Zhao ◽  
Qinghao Hu ◽  
Peisong Wang ◽  
...  
Keyword(s):  
Neural Networks ◽  
Mobile Devices ◽  
State Of The Art ◽  
Performance Gap ◽  
Training Time ◽  
Current State ◽  
The Arts ◽  
Soft Threshold ◽  
And Storage ◽  
Selection Of

Large neural networks are difficult to deploy on mobile devices because of intensive computation and storage. To alleviate it, we study ternarization, a balance between efficiency and accuracy that quantizes both weights and activations into ternary values. In previous ternarized neural networks, a hard threshold Δ is introduced to determine quantization intervals. Although the selection of Δ greatly affects the training results, previous works estimate Δ via an approximation or treat it as a hyper-parameter, which is suboptimal. In this paper, we present the Soft Threshold Ternary Networks (STTN), which enables the model to automatically determine quantization intervals instead of depending on a hard threshold. Concretely, we replace the original ternary kernel with the addition of two binary kernels at training time, where ternary values are determined by the combination of two corresponding binary values. At inference time, we add up the two binary kernels to obtain a single ternary kernel. Our method dramatically outperforms current state-of-the-arts, lowering the performance gap between full-precision networks and extreme low bit networks. Experiments on ImageNet with AlexNet (Top-1 55.6%), ResNet-18 (Top-1 66.2%) achieves new state-of-the-art.

scholarly journals Computational Analysis of Storylines

2021 ◽  
Keyword(s):  
Computational Linguistics ◽  
Language Processing ◽  
Computational Analysis ◽  
State Of The Art ◽  
Relevant Information ◽  
Event Extraction ◽  
Multidisciplinary Research ◽  
Narrative Structures ◽  
Current State ◽  
Event Representations

Event structures are central in Linguistics and Artificial Intelligence research: people can easily refer to changes in the world, identify their participants, distinguish relevant information, and have expectations of what can happen next. Part of this process is based on mechanisms similar to narratives, which are at the heart of information sharing. But it remains difficult to automatically detect events or automatically construct stories from such event representations. This book explores how to handle today's massive news streams and provides multidimensional, multimodal, and distributed approaches, like automated deep learning, to capture events and narrative structures involved in a 'story'. This overview of the current state-of-the-art on event extraction, temporal and casual relations, and storyline extraction aims to establish a new multidisciplinary research community with a common terminology and research agenda. Graduate students and researchers in natural language processing, computational linguistics, and media studies will benefit from this book.

Research on Corporate Governance

2021 ◽  
pp. 125-146
Author(s):  
Elisabete S. Vieira ◽  
Mara Madaleno ◽  
Graça Azevedo
Keyword(s):  
Corporate Governance ◽  
Bibliometric Analysis ◽  
Digital Library ◽  
State Of The Art ◽  
Recent Period ◽  
Current State ◽  
Final Sample ◽  
Bibliometric Review ◽  
Scopus Database ◽  
Research Studies

This chapter intends to contribute to the analysis of corporate governance (CG) practices through a bibliometric review of the existent literature in order to understand the current state of CG, providing an overview of the main trends in this field of research. Although there is extensive research on CG, no recent studies try to update the current state of the art on this topic. It is conducted a bibliometric analysis. The study describes the evolutional research studies published in the digital library Scopus between 2010 and 2019 and compares the results obtained in evolutionary terms. The bibliometric analysis is based in the Scopus database, leading to a total database of 4,430 documents. Regarding the most recent articles published, the study focuses on the period between 2018 and July 2020, ending with a final sample of 887 articles. Finally, a bibliometric analysis on the 16 scientific articles that were more cited in the more recent period is made. Research avenues are provided based on these results and on more recent published articles regarding the CG subject.

scholarly journals Extreme Fast Charging Technology—Prospects to Enhance Sustainable Electric Transportation

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3721 ◽  
Author(s):  
Deepak Ronanki ◽  
Apoorva Kelkar ◽  
Sheldon S. Williamson
Keyword(s):  
Electric Vehicles ◽  
State Of The Art ◽  
Future Research ◽  
Solid State Transformer ◽  
Research Attention ◽  
Charging Infrastructure ◽  
Medium Voltage ◽  
Current State ◽  
Fast Charging ◽  
New Generation

With the growing fleet of a new generation electric vehicles (EVs), it is essential to develop an adequate high power charging infrastructure that can mimic conventional gasoline fuel stations. Therefore, much research attention must be focused on the development of off-board DC fast chargers which can quickly replenish the charge in an EV battery. However, use of the service transformer in the existing fast charging architecture adds to the system cost, size and complicates the installation process while directly connected to medium-voltage (MV) line. With continual improvements in power electronics and magnetics, solid state transformer (SST) technology can be adopted to enhance power density and efficiency of the system. This paper aims to review the current state of the art architectures and challenges of fast charging infrastructure using SST technology while directly connected to the MV line. Finally, this paper discusses technical considerations, challenges and introduces future research possibilities.

scholarly journals Mapping the Literature on Financial Behavior: a Bibliometric Analysis Using the VOSviewer Program

2022 ◽  
Vol 19 ◽  
pp. 231-246
Author(s):  
Maksym Dubyna ◽  
Olha Popelo ◽  
Nataliia Kholiavko ◽  
Artur Zhavoronok ◽  
Maiia Fedyshyn ◽  
...  
Keyword(s):  
Bibliometric Analysis ◽  
Financial Services ◽  
Web Of Science ◽  
Data Retrieval ◽  
Financial Behavior ◽  
Scientific Publications ◽  
Economic Agents ◽  
Current State ◽  
Financial Behaviour ◽  
Number Of Publications

Objective of the article is to study the current state of researches of financial behaviour. The article is conceptual and based on the use of the methodology of the bibliometric analysis. The analysis is based on the data retrieval functionalities of Scopus and Web of Science platforms. Is used the toolkit of the VOSviewer program, network visualization of keywords in scientific publications. Findings: The number of publications that directly study the nature and features of the financial behavior formation of various economic agents is insignificant, but is constantly growing. An important role in this process is played by digitalization processes of financial services, which have an important impact on the models transformation of both financial behavior of economic agents, and changes in the model of the financial services provision to customers by financial institutions.

scholarly journals Teacher education research in the UK: the state of the art

2010 ◽  
Vol 32 (1) ◽  
pp. 121-142
Author(s):  
Ian Menter ◽  
Moira Hulme ◽  
Jean Murray ◽  
Anne Campbell ◽  
Ian Hextall ◽  
...  
Keyword(s):  
Teacher Education ◽  
Education Research ◽  
State Of The Art ◽  
Web Based ◽  
The United Kingdom ◽  
Current State ◽  
Methodological Approaches ◽  
Number Of Publications ◽  
The Uk ◽  
Teacher Education Research

This paper offers an analysis of the current state of teacher education research in the United Kingdom (UK). It commences with a brief historical overview of developments over the last century. Some recent «capacity building» initiatives designed to enhance and develop teacher education research are described. There is then a focus on a particular web-based resource that draws together a significant number of publications in UK teacher education research from 2000-2008. This database is then analysed in order to identify in which journals and by which authors this work is produced. The range of methodological approaches and substantive areas of focus that appear to predominate in teacher education research in the UK are reviewed, according to categories within the database. This demonstrates that there are some very real challenges to be faced by teacher education researchers in the years ahead, similar but not identical to those faced elsewhere.

Gender Diversity and Financial Risk

2022 ◽  
pp. 38-63
Author(s):  
João Teodósio ◽  
Elisabete Vieira ◽  
Mara Madaleno
Keyword(s):  
Bibliometric Analysis ◽  
Digital Library ◽  
Financial Risk ◽  
State Of The Art ◽  
Gender Diversity ◽  
Current State ◽  
Final Sample ◽  
Risk Practices ◽  
Bibliometric Review ◽  
Scopus Database

This chapter intends to contribute to the analysis of gender diversity and financial risk through a bibliometric review of the existent literature to understand the current state of financial risk research as well as to contribute to the analysis of the influence of gender diversity on financial risk. Although there is extensive research on financial risk, no recent study tries to update the current state of the research over the influence of gender on financial risk practices. This chapter describes the evolutional research studies published in the digital library Scopus, between 2010 and June 2021, and compares the results obtained in evolutionary terms. When the research is concentrated on the bibliometric analysis in the Scopus database and the keyword “financial risk,” it leads to a total of 15,979 documents. Regarding the analysis concentrated on the keywords “gender diversity” and “financial risk” for the period between 2010 and June 2021, the authors end with a final sample of 96 documents. Proposals for further research are provided based on the current state of the art.

scholarly journals Advances in Finger and Partial Hand Prosthetic Mechanisms

Robotics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 80
Author(s):  
Erasmo Difonzo ◽  
Giovanni Zappatore ◽  
Giacomo Mantriota ◽  
Giulio Reina
Keyword(s):  
State Of The Art ◽  
Limb Amputation ◽  
Functional Design ◽  
Modern Computer ◽  
Current State ◽  
Technological Advances ◽  
Single Finger ◽  
Starting Point ◽  
Design Requirements ◽  
Robust Systems

Approximately 70% of the upper extremity amputations refers to partial hand loss with the involvement of one or more fingers. Historically, this type of limb amputation has been addressed adopting simple opposition designs that use the movement of the residual digit for grasping against a fixed device. Nevertheless, in the last few years, technological advances, and the introduction of modern computer-aided tools for the synthesis and functional design of mechanisms have led to the development of smaller, more robust systems that are constantly improving body-powered and electrically-powered prototypes. This paper surveys cutting-edge solutions proposed in research or available on the market for single finger or partial hand prostheses. First, the main design requirements are outlined. Then, a wide number of prototypes are detailed underlying advantages and drawbacks. The overall goal is to create a solid starting point for the study and development of the next generation of prostheses that can be developed to advance the current state-of-the-art.

scholarly journals Magnesium-ion batteries for electric vehicles: Current trends and future perspectives

2021 ◽  
Vol 13 (3) ◽  
pp. 168781402110033
Author(s):  
Raj Shah ◽  
Vikram Mittal ◽  
Eliana Matsil ◽  
Andreas Rosenkranz
Keyword(s):  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
State Of The Art ◽  
Material Selection ◽  
Lithium Ion ◽  
Magnesium Ion ◽  
Costs And Benefits ◽  
Current Trends ◽  
Current State ◽  
Magnesium Ion Batteries

Lithium-ion batteries have enabled electric vehicles to achieve a foothold in the automobile market. Due to an increasing environmental consciousness, electric vehicles are expected to take a larger portion of the market, with the ultimate goal of supplanting traditional vehicles. However, the involved costs, sustainability, and technical limitations of lithium-ion batteries do create substantial obstacles to this goal. Therefore, this article aims at presenting magnesium-ion batteries as a potential replacement for lithium-ion batteries. Though still under development, magnesium-ion batteries show promise in achieving similar volumetric and specific capacities to lithium-ion batteries. Additionally, magnesium is substantially more abundant than lithium, allowing for the batteries to be cheaper and more sustainable. Numerous technical challenges related to cathode and electrolyte selection are yet to be solved for magnesium-ion batteries. This paper discusses the current state-of-the-art of magnesium-ion batteries with a particular emphasis on the material selection. Although, current research indicates that sulfur-based cathodes coupled with a (HMDS)2Mg-based electrolyte shows substantial promise, other options could allow for a better performing battery. This paper addresses the challenges (materials and costs) and benefits associated with developing these batteries. When overcoming these challenges, magnesium-ion batteries are posed to be a groundbreaking technology potentially revolutionizing the vehicle industry.

scholarly journals Polymorphism, what it is and how to identify it

2014 ◽  
Vol 70 (a1) ◽  
pp. C1386-C1386
Author(s):  
Jean-Pierre Brog ◽  
Claire-Lise Chanez ◽  
Aurelien Crochet ◽  
Katharina Fromm
Keyword(s):  
Pharmaceutical Industry ◽  
Materials Science ◽  
State Of The Art ◽  
Basic Research ◽  
The Other ◽  
Basic Knowledge ◽  
Mechanical Resistance ◽  
Current State ◽  
Number Of Publications ◽  
Identification And Characterization

Polymorphism is a very important phenomenon not only in basic research, but certainly in pharmaceutical industry and materials science. Polymorphs possess different properties, for instance the solubility or the mechanical resistance can differ dramatically from one polymorph to the other – properties which can be crucial for their application. Hence, it is important to be able to control the formation of polymorphs and to understand their formation. We here gave some insights into the basic knowledge of polymorph formation and their identification and characterization in order to give an overview on the current state of the art. In order to give interested peoples a tool in hand to test their compounds for polymorphism, we established a series of flow sheets to follow, depending on the class of compounds, hoping that they are useful for many scientists who are not so well acquainted with polymorphism. The presented schemes resume thus the identification steps for polymorphs. It should also help to use the term polymorph correctly in order to reduce the number of publications in which this term is not used in a correct way.

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