scholarly journals Interfaced heterogeneous nanodimers

2015 ◽  
Vol 2 (3) ◽  
pp. 329-348 ◽  
Author(s):  
Yugang Sun
Keyword(s):  
Strong Coupling ◽  
Synthesis And Characterization ◽  
Future Research ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Nanoscience And Nanotechnology ◽  
Materials Research ◽  
Future Research Directions

Abstract Dimerization of different nanocomponents in single nanoparticles becomes interesting due to not only inheritance of properties of both components but also generation of new properties associated with strong coupling of the two components. As a class of emerging nanomaterials, interfaced heterogeneous nanodimers (IHNDs) are attracting more attentions in the field of materials research, in particular, nanoscience and nanotechnology. This review provides a timely and comprehensive overview on the general principles for the synthesis of IHNDs and typical examples of IHNDs made of various compositional combinations. The current challenges related to the synthesis and characterization of IHNDs are summarized at the end of the review and future research directions are also discussed.

Indigenous alder based farming practices in Nagaland, India: A sustainable agricultural model

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Mechuselie Kehie
Keyword(s):  
Agricultural Land ◽  
Agroforestry System ◽  
Deciduous Tree ◽  
Future Research ◽  
Agricultural Crops ◽  
Farming Practices ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Ecological Farming ◽  
Future Research Directions

Traditional alder (Alnus nepalensis) based agroforestry system is an age-old ecological farming practice of some indigenous tribes viz., Angami, Chakhesang, Chang, Yimchunger and Konyak of Nagaland state in India. Alder is a deciduous or semi-deciduous tree naturally grown throughout the Himalayas. In this system of farming, crops are grown as intercrop with alder trees. Agricultural crops co-cultivated with alder, forms a very remunerative agroforestry system. Alder does not require high soil fertility and hence, conversion of wasteland into agricultural land through this system is very much practicable. This system is an outstanding sustainable model of land use evolved through numerous years of testing among the indigenous tribes of Nagaland. The present review presents a comprehensive overview of indigenous alder based farming practices in Nagaland. Furthermore, the paper also describes the opportunities, challenges and future research directions towards developing and utilizing this model for sustainable agriculture.

scholarly journals Hashtag Recommendation Methods for Twitter and Sina Weibo: A Review

2021 ◽  
Vol 13 (5) ◽  
pp. 129
Author(s):  
Areej Alsini ◽  
Du Q. Huynh ◽  
Amitava Datta
Keyword(s):  
Systematic Review ◽  
Digital Libraries ◽  
Future Research ◽  
Research Papers ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Sina Weibo ◽  
Social Media Platforms ◽  
Future Research Directions ◽  
Textual Content

Hashtag recommendation suggests hashtags to users while they write microblogs in social media platforms. Although researchers have investigated various methods and factors that affect the performance of hashtag recommendations in Twitter and Sina Weibo, a systematic review of these methods is lacking. The objectives of this study are to present a comprehensive overview of research on hashtag recommendation for tweets and present insights from previous research papers. In this paper, we search for articles related to our research between 2010 and 2020 from CiteSeer, IEEE Xplore, Springer and ACM digital libraries. From the 61 articles included in this study, we notice that most of the research papers were focused on the textual content of tweets instead of other data. Furthermore, collaborative filtering methods are seldom used solely in hashtag recommendation. Taking this perspective, we present a taxonomy of hashtag recommendation based on the research methodologies that have been used. We provide a critical review of each of the classes in the taxonomy. We also discuss the challenges remaining in the field and outline future research directions in this area of study.

scholarly journals A Review of the Polymer for Cryogenic Application: Methods, Mechanisms and Perspectives

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 320
Author(s):  
Duo Chen ◽  
Juanzi Li ◽  
Yuhuan Yuan ◽  
Chang Gao ◽  
Yunguang Cui ◽  
...  
Keyword(s):  
Liquid Oxygen ◽  
Future Research ◽  
Research Development ◽  
Thermoplastic Polymers ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Practical Applications ◽  
Application Potential ◽  
Future Research Directions ◽  
Cryogenic Application

Recently, the application of polymer-based composites at cryogenic conditions has become a hot topic, especially in aerospace fields. At cryogenic temperature, the polymer becomes more brittle, and the adverse effect of thermal stress induced by temperature is more remarkable. In this paper, the research development of thermoset and thermoplastic polymers for cryogenic applications are all reviewed. This review considers the literature concerning: (a) the cryogenic performance of modified thermoset polymers and the improving mechanisms of the reported modification methods; (b) the cryogenic application potential of some commercial thermoplastic polymers and the cryogenic performance of modified thermoplastic polymers; (c) the recent advance in the use of polymer for special cryogenic environment-liquid oxygen. This paper provides a comprehensive overview of the research development of the polymer for cryogenic application. Moreover, future research directions have been proposed to facilitate its practical applications in aerospace.

scholarly journals A systematic review of circular economy research in the construction industry

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Oluyomi A. Osobajo ◽  
Adekunle Oke ◽  
Temitope Omotayo ◽  
Lovelin Ifeoma Obi
Keyword(s):  
Systematic Review ◽  
Construction Industry ◽  
Circular Economy ◽  
Research Question ◽  
Methodological Approach ◽  
Future Research ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Content Type ◽  
Future Research Directions

PurposeWhile circular economy (CE) is fast becoming a political and economic agenda for global urban development, there are still substantial knowledge gaps in possible strategies to speed up such transition, especially in the construction industry. This study analyses literature surrounding CE to unpack current trends possible future research directions to foster CE implementation in the construction industry.Design/methodology/approachThe study undertakes a systematic review of CE literature published between 1990 and 2019. It adopts a five-stage procedure as a methodological approach for the review: formulation of the research question(s), locating and identifying relevant studies, selection and evaluation of studies, analysis or synthesis and results reporting.FindingsThe findings on CE research in the construction industry show extensive focus on resource use and waste management. There are limited investigations in other areas of construction such as supply chain integration, building designs, policy, energy efficiency, land use, offsite manufacturing, whole life costing, and risk, cost reduction, cost management, health and safety management. The study findings provide evidence that current CE practice fails to incorporate other areas that would facilitate the network of true circular construction industry.Originality/valueThis research provides a comprehensive overview of research efforts on CE in the construction context, identifying areas of extensive and limited coverage over three decades. Besides, it identifies possible pathways for future research directions on CE implementation, towards the accelerated transition to a true circular construction industry for the benefit of funding bodies and researchers.

Plexcitonic strong coupling: unique features, applications, and challenges

2021 ◽  
Author(s):  
Qian Zhao ◽  
Wenjie Zhou ◽  
Yan-Hui Deng ◽  
Ya-Qin Zheng ◽  
Zhong-Hong Shi ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Theoretical Models ◽  
Future Research ◽  
Applied Physics ◽  
Research Directions ◽  
Physical Mechanisms ◽  
General Field ◽  
Coupling Dynamics ◽  
Future Research Directions

Abstract There are, recently, remarkable achievements in turning light-matter interactions into strong coupling quantum regime. In particular, room temperature plexcitonic strong coupling in plasmon-exciton hybrid systems can bring promising benefits for fundamental and applied physics. Herein we will review theoretical insights and recent experimental achievements in plexcitonic strong coupling and divide this review into two main parts. The first part will briefly introduce the general field of strong coupling, including its origin and history, physical mechanisms and theoretical models, as well as recent advanced applications of strong coupling, such as the quantum or biochemical devices enabled by optical strong coupling. The second part will zoom in and concentrate on plexcitonic strong coupling by introducing its unique features and new potentials (such as single-particle ultrastrong coupling, strong coupling dynamics in femtosecond scale) and discussing the limitations and challenges of plexcitonic strong coupling, which will also be accompanied by potential solutions such as the microcavity-engineered plexcitonics, spectral hold burning effects, and metamaterial-based strong coupling. Finally, we will summarize and conclude this review, highlighting the future research directions and promising applications.

Legacy to SOA Evolution

2012 ◽  
pp. 40-70 ◽  
Author(s):  
Ravi Khadka ◽  
Amir Saeidi ◽  
Andrei Idu ◽  
Jurriaan Hage ◽  
Slinger Jansen
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Evaluation Framework ◽  
Future Research ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Research Issues ◽  
Methods And Techniques ◽  
Future Research Directions ◽  
Large Research

In the last decade, there have been significant developments in legacy to SOA evolution, and that has resulted in a large research body of which there exists no comprehensive overview. This chapter provides a historic overview, focusing on the methods and techniques used in legacy to SOA evolution. The authors conducted a systematic literature review to collect legacy to SOA evolution approaches reported from 2000 to August 2011. To this end, 121 primary studies were found and evaluated using an evaluation framework, which was developed from three evolution and modernization methods widely used in the software re-engineering domain. The evaluation constitutes the inventory of current research approaches and methods and techniques used in legacy to SOA evolution. The result of the SLR also identifies current research issues in legacy to SOA evolution and provides future research directions to address those research issues.

scholarly journals A Survey of Opponent Modeling in Adversarial Domains

2022 ◽  
Vol 73 ◽  
pp. 277-327
Author(s):  
Samer Nashed ◽  
Shlomo Zilberstein
Keyword(s):  
Method Comparison ◽  
Future Research ◽  
Comprehensive Overview ◽  
Open Problems ◽  
Research Directions ◽  
Opponent Modeling ◽  
Modeling Systems ◽  
Future Research Directions ◽  
Partially Observable ◽  
New Framework

Opponent modeling is the ability to use prior knowledge and observations in order to predict the behavior of an opponent. This survey presents a comprehensive overview of existing opponent modeling techniques for adversarial domains, many of which must address stochastic, continuous, or concurrent actions, and sparse, partially observable payoff structures. We discuss all the components of opponent modeling systems, including feature extraction, learning algorithms, and strategy abstractions. These discussions lead us to propose a new form of analysis for describing and predicting the evolution of game states over time. We then introduce a new framework that facilitates method comparison, analyze a representative selection of techniques using the proposed framework, and highlight common trends among recently proposed methods. Finally, we list several open problems and discuss future research directions inspired by AI research on opponent modeling and related research in other disciplines.

scholarly journals Internet of Bio-Nano Things: A review of applications, enabling technologies and key challenges

2021 ◽  
Vol 2 (3) ◽  
pp. 1-24
Author(s):  
Murat Kuscu ◽  
Bige Deniz Unluturk
Keyword(s):  
State Of The Art ◽  
Future Research ◽  
Comprehensive Overview ◽  
Research Directions ◽  
Future Research Directions ◽  
Harvesting Techniques ◽  
Spatio Temporal ◽  
Main Components ◽  
Novel Applications ◽  
And Control

Internet of Bio-Nano Things (IoBNT) is envisioned to be a heterogeneous network of nanoscale and biological devices, so called Bio-Nano Things (BNTs), communicating via non-conventional means, e.g., molecular communications (MC), in non-conventional environments, e.g., inside human body. The main objective of this emerging networking framework is to enable direct and seamless interaction with biological systems for accurate sensing and control of their dynamics in real time. This close interaction between bio and cyber domains with unprecedentedly high spatio-temporal resolution is expected to open up vast opportunities to devise novel applications, especially in healthcare area, such as intrabody continuous health monitoring. There are, however, substantial challenges to be overcome if the enormous potential of the IoBNT is to be realized. These range from developing feasible nanocommunication and energy harvesting techniques for BNTs to handling the big data generated by IoBNT. In this survey, we attempt to provide a comprehensive overview of the IoBNT framework along with its main components and applications. An investigation of key technological challenges is presented together with a detailed review of the state-of-the-art approaches and a discussion of future research directions.

scholarly journals New insight into the biochemical mechanisms regulating auxin transport in plants

2007 ◽  
Vol 401 (3) ◽  
pp. 613-622 ◽  
Author(s):  
Ian D. Kerr ◽  
Malcolm J. Bennett
Keyword(s):  
Auxin Transport ◽  
Future Research ◽  
Research Directions ◽  
The Past ◽  
Bona Fide ◽  
Future Research Directions ◽  
Biochemical Mechanisms ◽  
Ylacetic Acid ◽  
Insight Into

The transport of the plant hormone auxin has been under intense investigation since its identification 80 years ago. Studies have gradually refined our understanding of the importance of auxin transport in many aspects of plant signalling and development, and the focus has intensified in recent years towards the identification of the proteins involved in auxin transport and their functional mechanism. Within the past 18 months, the field has progressed rapidly, with confirmation that several distinct classes of proteins, previously dubbed as ‘putative auxin permeases’ or ‘auxin transport facilitators’, are bona fide transporters of IAA (indol-3-ylacetic acid). In this review we will appraise the recent transport data and highlight likely future research directions, including the characterization of auxiliary proteins necessary for the regulation of auxin transporters.

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