Bitumen and asphalt concrete modified by nanometer-sized particles: Basic concepts, the state of the art and future perspectives of the nanoscale approach

2020 ◽  
Vol 285 ◽  
pp. 102283
Author(s):  
Paolino Caputo ◽  
Michele Porto ◽  
Ruggero Angelico ◽  
Valeria Loise ◽  
Pietro Calandra ◽  
...  
Biomaterials ◽  
2021 ◽  
Vol 270 ◽  
pp. 120682
Author(s):  
Qinghua Lyu ◽  
Ling Peng ◽  
Xiangqian Hong ◽  
Taojian Fan ◽  
Jingying Li ◽  
...  

Author(s):  
Jukka Tyrkkö

This chapter outlines the state of the art in corpus-based language teaching and digital pedagogy, focusing on the differences between using corpora with present-day and historical data. The basic concepts of corpus-based research such as representativeness, frequency, and statistical significance can be introduced to students who are new to corpus methods, and the application of these concepts to the history of English can deepen students’ understanding of how historical varieties of the language are researched. This chapter will also address some of the key challenges particular to teaching the history of English using corpora, such as dealing with the seemingly counterintuitive findings, non-standard features, and small datasets. Finally, following an overview of available historical corpora and corpus tools, several practical examples of corpus-driven activities will be discussed in detail, with suggestions and ideas on how a teacher might prepare and run corpus-based lessons.


Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8319
Author(s):  
Claudia Esposito ◽  
Johan Steelant ◽  
Maria Rosaria Vetrano

Cryogenic cavitation affects the operation of liquid propulsion systems during the first phase of a launch. Its effects within orifices or turbopumps can range from mild instabilities to catastrophic damages to the structures, jeopardizing the launch itself. Therefore, to ensure the proper designing of propulsion systems, cavitation phenomena cannot be neglected. Although hydrodynamic cavitation has been studied for decades, the impact of the nature of the fluid has been sparsely investigated. Therefore, this review, beginning from the basic concepts of cavitation, analyzes the literature dedicated to hydrodynamic cryogenic cavitation through an orifice. Our review provides a clear vision of the state-of-the-art from experimental and modeling viewpoints, identifies the knowledge gaps in the literature, and proposes a way to further investigate cryogenic cavitation in aerospace science.


Engineering ◽  
2019 ◽  
Vol 5 (4) ◽  
pp. 702-720 ◽  
Author(s):  
Balasubramanian Nagarajan ◽  
Zhiheng Hu ◽  
Xu Song ◽  
Wei Zhai ◽  
Jun Wei

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