scholarly journals Overview of Applications of Laser-Driven Particle Acceleration (Editors Paul R. Bolton, Katia Parodi, and Jörg Schreiber) by CRC Press (Taylor and Francis Group) ISBN 9781498766418—5 June 2018

2018 ◽  
Vol 2 (4) ◽  
pp. 25
Author(s):  
Paul Bolton ◽  
Katia Parodi ◽  
Jörg Schreiber
Keyword(s):  
Particle Acceleration ◽  
Energetic Particle ◽  
Current Understanding ◽  
Physical Mechanisms ◽  
Electrons And Ions ◽  
The Future ◽  
Photon Sources ◽  
Potential Applications ◽  
Accelerator System

We briefly describe the new book, Applications of Laser-Driven Particle Acceleration, which was published in June of 2018 by CRC Press, Taylor and Francis Group. Written by the book editors, this article is appropriately an overview. The rationale for developing a book about applications for laser-driven energetic particle and photon sources is given and the content of its two parts (Parts I and II) is described. Part I addresses the current understanding of physical mechanisms and capabilities for acceleration of electrons and ions, as well as for associated generation of energetic photons and neutrons. Part II brings the focus back to potential applications in which the laser-driven source is distinguished from the more fully developed integrated laser-driven accelerator system. For applications of laser-driven sources and systems, a uniqueness strategy is recommended that particularly emphasizes what conventional (not laser-driven) accelerators cannot do. In the context of overall accelerator advancement, this strategy for the laser case highlights the potential for offering new beam configurations and research options that can uniquely augment accelerator capability in the future.

scholarly journals Black Phosphorus-Molybdenum Disulfide Hetero-Junctions Formed with Ink-Jet Printing for Potential Solar Cell Applications with Indium-Tin-Oxide

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 560
Author(s):  
Ravindra Ketan Mehta ◽  
Anupama Bhat Kaul
Keyword(s):  
Electrical Properties ◽  
Molybdenum Disulfide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Cost Effective ◽  
Contact Materials ◽  
Ito Glass ◽  
The Future ◽  
Potential Applications ◽  
Jet Printing

In this work, we implemented liquid exfoliation to inkjet-print two-dimensional (2D) black phosphorous (BP) and molybdenum disulfide (MoS2) p–n heterojunctions on a standard indium tin oxide (ITO) glass substrate in a vertical architecture. We also compared the optical and electrical properties of the inkjet-printed BP layer with that of the MoS2 and the electrical properties of the mechanically exfoliated MoS2 with that of the inkjet-printed MoS2. We found significant differences in the optical characteristics of the inkjet-printed BP and MoS2 layers attributed to the differences in their underlying crystal structure. The newly demonstrated liquid exfoliated and inkjet-printed BP–MoS2 2D p–n junction was also compared with previous reports where mechanically exfoliated BP–MoS2 2D p–n junction were used. The electronic transport properties of mechanically exfoliated MoS2 membranes are typically better compared to inkjet-printed structures but inkjet printing offers a cost-effective and quicker way to fabricate heterostructures easily. In the future, the performance of inkjet-printed structures can be further improved by employing suitable contact materials, amongst other factors such as modifying the solvent chemistries. The architecture reported in this work has potential applications towards building solar cells with solution processed 2D materials in the future.

Narrating the Facets of Time in Entrepreneurial Action

2021 ◽  
pp. 104225872110381
Author(s):  
Christian Garmann Johnsen ◽  
Robin Holt
Keyword(s):  
Current Understanding ◽  
The Future ◽  
Entrepreneurial Action ◽  
Temporal Dimensions ◽  
Past Experiences ◽  
Narrative Framework ◽  
Images Of The Future

The current understanding of entrepreneurial action is grounded in time, but the different facets of this time remain to be sufficiently explored. We argue that entrepreneurial action has two temporal dimensions: world time and human time. World time reveals the prior contextual conditions giving rise to entrepreneurial actions that generate subsequent results. Human time reveals how entrepreneurs act on the basis of past experiences, attention to current conditions, and images of the future. Using a narrative framework to integrate world time and human time, we contribute to a deeper understanding of the different facets of time in entrepreneurial action.

scholarly journals Application of Magnetic Nano Particles and their Composites as Adsorbents for Waste Water Treatment: A Brief Review

2021 ◽  
pp. 246-278
Author(s):  
M. Dhiman
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Nano Particles ◽  
Future Perspective ◽  
Isotherm Models ◽  
Water And Wastewater Treatment ◽  
The Future ◽  
Potential Applications ◽  
Surface Modified

The present review highlights the different types of nano ferrites and their surface modified composites as an alternative adsorbent in waste water treatment. In this review, the recent progresses and potential applications of SFNPs/SFNCs for the removal of organic and inorganic contaminants through adsorption routes are critically reviewed. There are number of water purification techniques but the adsorption is one of the simplest, effective and economical method for wastewater purification. Adsorption isotherm models, kinetic models, thermodynamic parameters and adsorption mechanism have also been discussed. The present article lists different type of adsorbents and reviews state-of-the-art of the removal of different pollutants from water. The efforts have been made to discuss the sources of contamination and toxicities of pollutants. The possible techniques of recovery and reuse, toxicity, research gaps and the future perspective of SFNPs are also discussed in brief. Based on this review, it is possible to conclude that SFNPs and their derivative composites have unlimited capacity in addressing array of problems encountered in water and wastewater treatment. The present study highlights the future areas of research for waste water treatment.

THE ELECTRONIC STRUCTURE AT ORGANIC–2D MATERIAL HETEROINTERFACES

2021 ◽  
pp. 2140003
Author(s):  
YU LI HUANG ◽  
ANDREW THYE SHEN WEE
Keyword(s):  
Charge Transfer ◽  
Electronic Structures ◽  
Transition Metal Dichalcogenides ◽  
2D Material ◽  
Physical Mechanisms ◽  
Wide Range ◽  
Fundamental Understanding ◽  
Potential Applications ◽  
Metal Dichalcogenides ◽  
Interfacial Charge

Organic–2D material heterostructures have attracted intensive research interest due to their intriguing properties, with a wide range of potential applications in multifunctional flexible electronic and optoelectronic devices. Central to the realization of such devices is a fundamental understanding of the electronic structures at organic–2D material heterointerfaces. The energy level alignment (ELA) at the interface is of paramount importance because it determines the charge transfer barriers between the two materials in contact. In this paper, we discuss the physical mechanisms determining the ELAs, with special attention on interfacial charge transfer at the heterostructures. We review the current understanding of electronic properties at the heterointerfaces formed by the integration of organics with graphene and 2D transition metal dichalcogenides (TMDs), and conclude with a perspective on the future development of organic–2D material heterostructure.

scholarly journals Toxicity Studies on Graphene-Based Nanomaterials in Aquatic Organisms: Current Understanding

Molecules ◽  
2020 ◽  
Vol 25 (16) ◽  
pp. 3618
Author(s):  
Nemi Malhotra ◽  
Oliver B. Villaflores ◽  
Gilbert Audira ◽  
Petrus Siregar ◽  
Jiann-Shing Lee ◽  
...  
Keyword(s):  
High Surface ◽  
High Surface Area ◽  
Aquatic Organisms ◽  
Current Understanding ◽  
Toxic Effects ◽  
Fish Cell ◽  
Conductivity Electron ◽  
Potential Applications ◽  
Aquatic Food ◽  
Living Organisms

Graphene and its oxide are nanomaterials considered currently to be very promising because of their great potential applications in various industries. The exceptional physiochemical properties of graphene, particularly thermal conductivity, electron mobility, high surface area, and mechanical strength, promise development of novel or enhanced technologies in industries. The diverse applications of graphene and graphene oxide (GO) include energy storage, sensors, generators, light processing, electronics, and targeted drug delivery. However, the extensive use and exposure to graphene and GO might pose a great threat to living organisms and ultimately to human health. The toxicity data of graphene and GO is still insufficient to point out its side effects to different living organisms. Their accumulation in the aquatic environment might create complex problems in aquatic food chains and aquatic habitats leading to debilitating health effects in humans. The potential toxic effects of graphene and GO are not fully understood. However, they have been reported to cause agglomeration, long-term persistence, and toxic effects penetrating cell membrane and interacting with cellular components. In this review paper, we have primarily focused on the toxic effects of graphene and GO caused on aquatic invertebrates and fish (cell line and organisms). Here, we aim to point out the current understanding and knowledge gaps of graphene and GO toxicity.

scholarly journals Fast magnetic reconnection and energetic particle acceleration

2011 ◽  
Vol 59 (7) ◽  
pp. 537-546 ◽  
Author(s):  
A. Lazarian ◽  
G. Kowal ◽  
E. Vishniac ◽  
E. de Gouveia Dal Pino
Keyword(s):  
Particle Acceleration ◽  
Magnetic Reconnection ◽  
Energetic Particle ◽  
Energetic Particle Acceleration

Where Are the People? A Call for People-Centred Concepts and Measurements of Democracy

2015 ◽  
Vol 50 (3) ◽  
pp. 469-494 ◽  
Author(s):  
Renske Doorenspleet
Keyword(s):  
The State ◽  
Current Understanding ◽  
Political Elites ◽  
Ivory Tower ◽  
The People ◽  
The Future ◽  
Democracy Measurement

This article aims to bring the people to the heart of democracy measurement. Existing measurements have reinforced the idea that democracy is the domain of the state with its procedures, institutions and political elites. But where are the people in those measurements? So far, when we measure democracy we rely on experts who determine what democracy is, while people’s views have been ignored. This happens not only during the phase of conceptualization, but also during operationalization. The specific way we measure democracy feeds elitism and is emblematic of how our discipline has developed, namely an ivory tower in which political scientists define and measure democracy without taking people’s views seriously. The article proposes new people-centred measures of democracy and discusses their effect on the rankings of countries and their strengths and weaknesses. The future of the study of democracy lies in developing new measures that challenge our current understanding of democracy and assist us in developing new perspectives, thus reinvigorating democracy studies.

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