An investigation of foaming additives and usage rates in the production of ultra-light foam glass

Author(s):  
M. Davraz ◽  
M. Koru ◽  
A. E. Akdağ ◽  
Ş. Kılınçarslan ◽  
Y. E. Delikanlı ◽  
...  
Keyword(s):  
2018 ◽  
Vol 760 (6) ◽  
pp. 41-44 ◽  
Author(s):  
V.S. LESOVIK ◽  
◽  
S.V. ALEKSEEV ◽  
I.V. BESSONOV ◽  
S.S. VAISERA ◽  
...  

2021 ◽  
Vol 13 (14) ◽  
pp. 7974
Author(s):  
Dong-Gyun Ku ◽  
Jung-Sik Um ◽  
Young-Ji Byon ◽  
Joo-Young Kim ◽  
Seung-Jae Lee

The COVID-19 outbreak in 2020 has changed the way people travel due to its highly contagious nature. In this study, changes in the travel behavior of passengers due to COVID-19 in the first half of 2020 were examined. To determine whether COVID-19 has affected the use of transportation by passengers, paired t-tests were conducted between the passenger volume of private vehicles in Seoul prior to and after the pandemic. Additionally, the passenger occupancy rate of different modes of transportation during the similar time periods were compared and analyzed to identify the changes in monthly usage rate for each mode. In the case of private vehicles and public bicycles, the usage rates have recovered or increased when compared to those of before the pandemic. Conversely, bus and rail passenger service rates have decreased from the previous year before the pandemic. Furthermore, it is found that existing bus and rail users have switched to the private auto mode due to COVID-19. Based on the results, traffic patterns of travelers after the outbreak and implications responding to the pandemic are discussed.


2019 ◽  
Vol 945 ◽  
pp. 46-52 ◽  
Author(s):  
Elena A. Yatsenko ◽  
B.M. Goltsman ◽  
A.V. Ryabova

Modern trends in the development of the oil and gas infrastructure of the Russian Far East are considered. The main threats in the operation of oil and gas pipelines are described. The technology of complex protection of pipeline surfaces is proposed. Protection of the inner surface is achieved through the use of silicate enamel coatings, protection of the external surface – through the use of foam glass. On the basis of local silicate raw materials the technology of the described materials is developed, and their main properties are determined. Recommendations on the application of the developed technology for the protection of pipelines are given.


2018 ◽  
Vol 101 (9) ◽  
pp. 3917-3923 ◽  
Author(s):  
Martin B. Østergaard ◽  
Rasmus R. Petersen ◽  
Jakob König ◽  
Michal Bockowski ◽  
Yuanzheng Yue

2009 ◽  
Vol 8 (1) ◽  
pp. 187-193 ◽  
Author(s):  
Andrea Ventrella ◽  
Federico Smeacetto ◽  
Milena Salvo ◽  
Monica Ferraris
Keyword(s):  

2011 ◽  
Vol 176 (15) ◽  
pp. 1239-1242 ◽  
Author(s):  
Kuo Chen ◽  
Xiuhua Li ◽  
Dongsheng Lv ◽  
Fangyun Yu ◽  
Zheng’e Yin ◽  
...  

2014 ◽  
Vol 400 ◽  
pp. 1-5 ◽  
Author(s):  
Rasmus R. Petersen ◽  
Jakob König ◽  
Morten M. Smedskjaer ◽  
Yuanzheng Yue
Keyword(s):  

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