scholarly journals Semiconducting Nanoparticles: Single Entity Electrochemistry and Photoelectrochemistry

2021 ◽  
Vol 9 ◽  
Author(s):  
S. Mathuri ◽  
Yuanhang Zhu ◽  
Mudaliar Mahesh Margoni ◽  
Xiuting Li

Semiconducting nanoparticles (SC NPs) play vital roles in several emerging technological applications including optoelectronic devices, sensors and catalysts. Recent research focusing on the single entity electrochemistry and photoelectrochemistry of SC NPs is a fascinating field which has attained an increasing interest in recent years. The nano-impact method provides a new avenue of studying electron transfer processes at single particle level and enables the discoveries of intrinsic (photo) electrochemical activities of the SC NPs. Herein, we review the recent research work on the electrochemistry and photoelectrochemistry of single SC NPs via the nano-impact technique. The redox reactions and electrocatalysis of single metal oxide semiconductor (MOS) NPs and chalcogenide quantum dots (QDs) are first discussed. The photoelectrochemistry of single SC NPs such as TiO2 and ZnO NPs is then summarized. The key findings and challenges under each topic are highlighted and our perspectives on future research directions are provided.

2022 ◽  
Author(s):  
Farkhanda Zafar ◽  
Hasan Ali Khattak ◽  
Moayad Aloqaily ◽  
Rasheed Hussain

Owing to the advancements in communication and computation technologies, the dream of commercialized connected and autonomous cars is becoming a reality. However, among other challenges such as environmental pollution, cost, maintenance, security, and privacy, the ownership of vehicles (especially for Autonomous Vehicles (AV)) is the major obstacle in the realization of this technology at the commercial level. Furthermore, the business model of pay-as-you-go type services further attracts the consumer because there is no need for upfront investment. In this vein, the idea of car-sharing ( aka carpooling) is getting ground due to, at least in part, its simplicity, cost-effectiveness, and affordable choice of transportation. Carpooling systems are still in their infancy and face challenges such as scheduling, matching passengers interests, business model, security, privacy, and communication. To date, a plethora of research work has already been done covering different aspects of carpooling services (ranging from applications to communication and technologies); however, there is still a lack of a holistic, comprehensive survey that can be a one-stop-shop for the researchers in this area to, i) find all the relevant information, and ii) identify the future research directions. To fill these research challenges, this paper provides a comprehensive survey on carpooling in autonomous and connected vehicles and covers architecture, components, and solutions, including scheduling, matching, mobility, pricing models of carpooling. We also discuss the current challenges in carpooling and identify future research directions. This survey is aimed to spur further discussion among the research community for the effective realization of carpooling.


Author(s):  
Stavros Tsetsos ◽  
Jim Prentzas

Web 2.0 tools are frequently integrated in education. The main goal of this integration is to provide enhanced learning experiences to students. Among other Web 2.0 tools, blogs are often used. Many approaches have been presented that successfully exploited blogs in all levels of education. An aspect of interest is to outline main directions of the corresponding research work that will provide insight to researchers, teachers, students, developers, and policymakers. This chapter provides a brief survey of approaches integrating blogs in primary and secondary education. Initially, main concepts regarding blogs as Web 2.0 tools and educational blogs are briefly discussed. Then, 16 approaches concerning the use of blogs in primary and secondary education are surveyed. The results derived from these approaches are analyzed. The analysis shows that the results are positive, and blogs turn out to be useful tools for school education. It is likely that more such approaches will be presented in the future. The chapter also outlines future research directions.


2021 ◽  
Author(s):  
A. K. M. Amanat Ullah ◽  
Samiha Sultana ◽  
Fahim Faisal ◽  
Md. Muzahidul Islam Rahi ◽  
Md. Ashraful Alam ◽  
...  

Automated trading is used in most of the major markets of our world. In order to ensure sustainable development, incorporating ethical and socially responsible ideas while designing these Artificial Intelligence (AI) systems has become a necessity. Both the industry and the academia are working towards Responsible AI, which can make Socially Responsible Investments (SRI). This paper reviews the research on SRI investment in the financial sector and evaluates these methods, which can help find future research directions in Computational Finance. This survey looks at the machine learning techniques used for ethical decision-making while stock or forex trading, which will benefit any further research work on Responsible AI in Finance.<br>


Author(s):  
Varun G. Menon

Opportunistic routing uses the broadcasting nature of the wireless medium to increase the number of potential forwarding nodes in the network. This, in turn improves the delivery rate and reliability of data transmission in the network. Compared to all previous classes of protocols, opportunistic routing offers numerous advantages which is exploited by the latest applications for efficient communication and resource sharing in dynamic ad hoc networks. The objective of this research work is to review and classify all the major opportunistic routing protocols proposed for dynamic ad hoc networks. Further the issues and challenges with each of these existing protocol is discussed and future research directions are put forward.


2019 ◽  
Vol 19 (3) ◽  
pp. 253-277
Author(s):  
Pankaj Kaprwan ◽  
Sameer Mathur

Practitioners and marketers have leveraged brand equity in order to charge a premium price for their products, relative to competition, in the marketplace, yet, we do not find a systematic literature review that captures the importance of this metric as an outcome of brand equity. The purpose of this review is to fill this gap. This review (a) identifies and summarises the relevant literature, providing an understanding of brand equity; (b) highlights the academic literature which compares various brand equity measures and identifies price premium as a key metric; and (c) highlights empirical research work that identifies and validates price premium as a key metric in the B2C marketplace. This review suggests future research directions, exploring the relevance of a price premium metric as a service brand equity measure.


2014 ◽  
Vol 6 (2) ◽  
pp. 173-197 ◽  
Author(s):  
Harsh Pratap Singh ◽  
Satish Kumar

Purpose – The purpose of this paper is to review research on working capital management (WCM) and to identify gaps in the current body of knowledge, which justify future research directions. WCM has attracted serious research attention in the recent past, especially after the financial crisis of 2008. Design/methodology/approach – Using systematic literature review (SLR) method, the present study reviews 126 articles from referred journal and international conferences published on WCM. Findings – Detailed content analysis reveals that most of the research work is empirical and focuses mainly on two aspects, impact of working capital on profitability of firm and working capital practices. Major research work has concluded that WCM is essential for corporate profitability. The major issues with prior literature are lack of survey-based approach and lack of systematic theory development study, which opens all new areas for future research. The future research directions proposed in this paper may help develop a greater understanding of determinants and practices of WCM. Practical implications – Till date, literature on classification of WCM has been almost non-existent. This paper reviews a large number of articles on WCM and provides a classification scheme in to various categories. Subsequently, various emerging trends in the field of WCM are identified to help researchers specifying gaps in the literature and direct research efforts. Originality/value – This paper contains a comprehensive listing of publications on the WCM and their classification according to various attributes. The paper will be useful to researchers, finance professionals and others concerned with WCM to understand the importance of WCM. To the best of the authors’ knowledge, no detailed SLR on this topic has previously been published in academic journals.


2021 ◽  
Author(s):  
A. K. M. Amanat Ullah ◽  
Samiha Sultana ◽  
Fahim Faisal ◽  
Md. Muzahidul Islam Rahi ◽  
Md. Ashraful Alam ◽  
...  

Automated trading is used in most of the major markets of our world. In order to ensure sustainable development, incorporating ethical and socially responsible ideas while designing these Artificial Intelligence (AI) systems has become a necessity. Both the industry and the academia are working towards Responsible AI, which can make Socially Responsible Investments (SRI). This paper reviews the research on SRI investment in the financial sector and evaluates these methods, which can help find future research directions in Computational Finance. This survey looks at the machine learning techniques used for ethical decision-making while stock or forex trading, which will benefit any further research work on Responsible AI in Finance.<br>


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