Effects of Long‐Term Ageing at High Temperatures on Oxide Scale Development and Evolution of Austenitic Steels Microstructure

2020 ◽  
Vol 91 (6) ◽  
pp. 1900595
Author(s):  
Adam Zieliński ◽  
Tomasz Pawel Dudziak ◽  
Grzegorz Golański ◽  
Jarosław Gazdowicz ◽  
Anna Kołodziej
Keyword(s):  
Scale Development ◽  
Oxide Scale ◽  
High Temperatures ◽  
Austenitic Steels ◽  
Development And Evolution

Physiological and morphological effects of climate change

2019 ◽  
pp. 120-133 ◽  
Author(s):  
Andrew E. McKechnie
Keyword(s):  
Climate Change ◽  
Body Mass ◽  
High Temperatures ◽  
Arid Zone ◽  
Future Research ◽  
Long Term Effects ◽  
Adaptation To Climate Change ◽  
Heat Events

The direct impacts of higher temperatures on birds are manifested over timescales ranging from minutes and hours to years and decades. Over short timescales, acute exposure to high temperatures can lead to hyperthermia or dehydration, which among arid-zone species occasionally causes catastrophic mortality events. Over intermediate timescales of days to weeks, high temperatures can have chronic sub-lethal effects via body mass loss or reduced nestling growth rates, negatively affecting sev eral fitness components. Long-term effects of warming manifested over years to decades involve declining body mass or changes in appendage size. Key directions for future research include elucidating the role of phenotypic plasticity and epigenetic processes in avian adaptation to climate change, examining the role of stress pathways in mediating responses to heat events, and understanding the consequences of higher temperatures for species that traverse hot regions while migrating.

scholarly journals BN/SiBCN light-leakage-proof coatings of silica optical fiber for long term sensors at high temperatures

2020 ◽  
Author(s):  
Xin'gang LUAN ◽  
Xinming XU ◽  
Rong YU ◽  
Qiqi ZHANG ◽  
Sam ZHANG ◽  
...  
Keyword(s):  
Optical Fiber ◽  
High Temperatures ◽  
Silica Optical Fiber

Study of the scale formed on super 304H boiler tube steels after long-term steam oxidation at high temperatures

2018 ◽  
Vol 146 ◽  
pp. 71-80 ◽  
Author(s):  
Keun-Bong Yoo ◽  
Yinsheng He ◽  
Han-Sang Lee ◽  
Si-Yeon Bae ◽  
Doo-Soo Kim ◽  
...  
Keyword(s):  
High Temperatures ◽  
Steam Oxidation ◽  
Boiler Tube ◽  
Tube Steels

Research and Development of Practical Industrial Cogeneration Technology in Japan

2000 ◽  
Author(s):  
Toshiaki Abe ◽  
Takashi Sugiura ◽  
Shuji Okunaga ◽  
Katsuhiro Nojima ◽  
Yasukata Tsutsui ◽  
...  
Keyword(s):  
Research And Development ◽  
Gas Turbine ◽  
High Temperatures ◽  
Gas Turbines ◽  
High Efficiency ◽  
Development Project ◽  
Term Operation ◽  
Resistance To Heat

This paper presents an overview of a development project involving industrial cogeneration technology using 8,000-kW class hybrid gas turbines in which both metal and ceramics are used in parts subject to high temperatures in order to achieve high efficiency and low pollution. The development of hybrid gas turbines focuses mainly on the earlier commercialization of the turbine system. Stationary parts such as combustor liners, transition ducts, and first-stage turbine nozzles (stationary blades) are expected to be fabricated from ceramics. The project aims at developing material for these ceramic parts that will have a superior resistance to heat and oxidation. The project also aims at designing and prototyping a hybrid gas turbine system to analyze the operation in order to improve the performance. Furthermore, the prototyped hybrid gas turbine system will be tested for long-term operation (4,000 hours) to verify that the system can withstand commercialization. Studies will be conducted to ensure that the system’s soundness and reliability are sufficient for industrial cogeneration applications.

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