scholarly journals Future of Science and Technology of High Pressure: A Role of the Japan Society of High Pressure Science and Technology

2020 ◽  
Vol 30 (2) ◽  
pp. 134-139
Author(s):  
Hiroyuki KAGI
Keyword(s):  
High Pressure ◽  
Science And Technology ◽  
Japan Society

High Pressure Studies of Quantum Well Emission and Deep Emission in GaInP(ordered)-GaAs Heterostructures

1997 ◽  
Vol 499 ◽  
Author(s):  
S. H. Kwok ◽  
P. Y. Yu ◽  
K. Uchida ◽  
T. Arai
Keyword(s):  
High Pressure ◽  
Quantum Well ◽  
Emission Band ◽  
Excitation Power ◽  
High Excitation ◽  
High Pressure Studies ◽  
Band Alignments ◽  
High Pressure Study

ABSTRACTWe report on a high pressure study of emission from a series of GaInP(ordered)/GaAs heterostructures. A so-called “deep emission” band at 1.46 eV is observed in all our samples. At high excitation power, quantum well emission emerges in only one structure where thin GaP layers are inserted on both sides of the GaAs well. From the pressure dependent emission in this sample we have determined its band alignments. The role of the GaP layers in suppressing the deep emission is elucidated.

Role of dislocations in the bcc-hcp transition under high pressure: A first-principles approach in beryllium

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Vanessa Riffet ◽  
Bernard Amadon ◽  
Nicolas Bruzy ◽  
Christophe Denoual
Keyword(s):  
High Pressure ◽  
First Principles

Anomalous narrowing of the shape of the structural process in derivatives of trehalose at high pressure. The role of the internal structure

2021 ◽  
pp. 116321
Author(s):  
Dawid Heczko ◽  
Joanna Grelska ◽  
Karolina Jurkiewicz ◽  
Patrycja Spychalska ◽  
Anna Kasprzycka ◽  
...  
Keyword(s):  
High Pressure ◽  
Internal Structure ◽  
Structural Process ◽  
Derivatives Of

NBIC-Convergence and Technoethics

2016 ◽  
Vol 7 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Elena Grebenshchikova
Keyword(s):  
Technology Development ◽  
Science And Technology ◽  
Applied Ethics ◽  
High Technology ◽  
Ethical Reflection ◽  
Different Types ◽  
Biomedical Field ◽  
Ict Ethics

Technoethics is a new, but rapidly developing field of ethical reflection of technoscience. It can claim to unite the various ethical projections of the science and technology development in a common approach. One of the starting points of understanding this role of technoethics may be NBIC-convergence. The ethical dimensions of the NBIC-projects is represented in these sub-areas of applied ethics as a nanoethics, bioethics, neuroethics and ICT ethics. In this article particular attention is paid to the biomedical field, which is a prime example of innovative high technology, as well as the interaction of different types of ethics.

The Role of Porous Media in Homogenization of High Pressure Diesel Fuel Spray Combustion

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Navid Shahangian ◽  
Damon Honnery ◽  
Jamil Ghojel
Keyword(s):  
High Pressure ◽  
Porous Media ◽  
High Speed ◽  
Fuel Spray ◽  
Compression Ignition Engines ◽  
System Pressure ◽  
Novel Approach ◽  
Air Mixing ◽  
The Media

Interest is growing in the benefits of homogeneous charge compression ignition engines. In this paper, we investigate a novel approach to the development of a homogenous charge-like environment through the use of porous media. The primary purpose of the media is to enhance the spread as well as the evaporation process of the high pressure fuel spray to achieve charge homogenization. In this paper, we show through high speed visualizations of both cold and hot spray events, how porous media interactions can give rise to greater fuel air mixing and what role system pressure and temperature plays in further enhancing this process.

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