1017 The Creation of Wheel Prevented Derailments Accidents by Tailor Made Surface Modification

2007 ◽  
Vol 2007 (0) ◽  
pp. 265-266
Author(s):  
Naoki HARADA ◽  
Hideto SUZUKI
2021 ◽  
Vol 23 (39) ◽  
pp. 22673-22684
Author(s):  
Adéla Jagerová ◽  
Romana Mikšová ◽  
Oleksander Romanenko ◽  
Iva Plutnarova ◽  
Zdeněk Sofer ◽  
...  

The high-energy ion irradiation induces the creation of ZnO surface nanostructures affecting optical properties, which may be promising for photocatalysis and optoelectronics.


2021 ◽  
Author(s):  
Ekaterina Bryuzgina ◽  
Vitaliya Yartseva ◽  
Evgeny Bryuzgin ◽  
Oleg Tuzhikov ◽  
Alexander Navrotskiy

Abstract Chitosan is one of prospective polymer for use in regenerative medicine which has unique properties such as biocompatibility, biodegradability, antimicrobial, anti-inflammatory, and antitumor potency. In this article, we study the peculiarities of the surface modification of chitosan films with carbonyl-containing compounds, which differed both in molecular characteristics and in their hydrophilic and hydrophobic properties. The potential for controlling the biodegradation of the resulting materials has been established, which can be used in the creation of wound dressings. Both the destruction time and lyophilic properties of the surface depend on the length of the modifier's hydrocarbon radical. The contact angle and water absorption of obtained film materials correlate with hydrophobicity, which estimated by the calculated value of the hydrophilic–lipophilic balance (HLB). The cytotoxicity of modified chitosan films was studied, and it was found that they are non-toxic (cytotoxic index of <50%) for human skin cell cultures, which shows their potential for use in the creation of materials for skin protection and external wound healing.


Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14581-14588
Author(s):  
Anastasiya Olshtrem ◽  
Olga Guselnikova ◽  
Pavel Postnikov ◽  
Andrey Trelin ◽  
Mekhman Yusubov ◽  
...  

Plasmon-based route for the spatially selective grafting of anisotropic gold nanorods (AuNRs) and creation of amphiphilic nanoparticles is proposed.


2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.


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