Zobrazeno 1 - 10
of 53
pro vyhledávání: '"P N Ojha"'
Publikováno v:
Journal of Building Materials and Structures, Vol 7, Iss 2, Pp 199-209 (2020)
High strength concrete (HSC) has some disadvantages such as brittleness and poor resistance to fire. Fire exposure affects the concrete in way that the disintegration of concrete starts and a severe surface spalling occurs at very high temperatures.
Externí odkaz:
https://doaj.org/article/a76206ea0b394bd5b078e28ad312f319
Publikováno v:
Journal of Building Materials and Structures, Vol 8, Iss 2 (2021)
Assessment of 28 days strength from accelerated strength (1 day) can be extremely helpful. Early prediction of 28 days compressive strength is required basically for two purposes. First, to finalize the concrete mix proportions in the laboratory and
Externí odkaz:
https://doaj.org/article/440b20a823834514acd299ede6fa5a3b
Publikováno v:
Journal of Building Materials and Structures, Vol 8, Iss 2 (2021)
The objective of the paper is to analyze the various factors and loop holes that have a significant impact on effectiveness of quality and quality assurance system and to suggest recommendations to increase the quality performance of the construction
Externí odkaz:
https://doaj.org/article/19ad3c3cae744e32b98b70752f53baa8
Publikováno v:
Journal of Building Materials and Structures, Vol 8, Iss 1 (2021)
Coal-based thermal power plants all over the world facing serious problems of handling and disposal of the ash produced. The productive use of coal Bottom Ash (BA) is the best way to alleviate the problems associated with its disposal. This paper cov
Externí odkaz:
https://doaj.org/article/017566ab096e4c01a2f57223c657e4a6
Autor:
I. A. Girach, N. Ojha, P. R. Nair, K. V. Subrahmanyam, N. Koushik, M. M. Nazeer, N. Kiran Kumar, S. N. S. Babu, J. Lelieveld, A. Pozzer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1979-1995 (2024)
Studies of atmospheric trace gases in remote, pristine environments are critical for assessing the accuracy of climate models and advancing our understanding of natural processes and global changes. We investigated the surface ozone (O3) variability
Externí odkaz:
https://doaj.org/article/7f4a3c4762244dda9b7565a41e28325d
Autor:
M. Soni, R. Sander, L. K. Sahu, D. Taraborrelli, P. Liu, A. Patel, I. A. Girach, A. Pozzer, S. S. Gunthe, N. Ojha
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15165-15180 (2023)
Tropospheric chlorine chemistry can strongly impact the atmospheric oxidation capacity and composition, especially in urban environments. To account for these reactions, the gas- and aqueous-phase Cl chemistry of the community atmospheric chemistry b
Externí odkaz:
https://doaj.org/article/4bf3a68db6b04bb09bf4ebddbc1833eb
Autor:
S. Harithasree, Kiran Sharma, Imran A. Girach, Lokesh K. Sahu, Prabha R. Nair, Narendra Singh, Johannes Flemming, S. Suresh Babu, N. Ojha
Publikováno v:
Atmospheric Environment: X, Vol 21, Iss , Pp 100247- (2024)
The air quality and climate of the Himalaya is found to be impacted profoundly by strong anthropogenic emissions and photochemical processes in the valley region. Considering rapid urbanization and population growth, we performed surface ozone (O3) m
Externí odkaz:
https://doaj.org/article/422b70fe493440909053276cbae3bdf0
Publikováno v:
Hydrology and Earth System Sciences, Vol 24, Pp 1781-1803 (2020)
Thermal-based two-source energy balance modeling is essential to estimate the land evapotranspiration (ET) in a wide range of spatial and temporal scales. However, the use of thermal-derived land surface temperature (LST) is not sufficient to simulta
Externí odkaz:
https://doaj.org/article/78a25dd268cf4129a26beca8a88b536b
Publikováno v:
Frontiers in Pharmacology, Vol 12 (2022)
Himalayan communities illustrate a rich agriculture–medicine use system that not only provides adequate dietary diversity and nutrition but also delivers therapeutic security. This study explores the food–medicine interface as observed by the mar
Externí odkaz:
https://doaj.org/article/b09e1de2a6264cc2bc928200457763af
Autor:
N. Ojha, A. Pozzer, A. Rauthe-Schöch, A. K. Baker, J. Yoon, C. A. M. Brenninkmeijer, J. Lelieveld
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 3013-3032 (2016)
We compare in situ measurements of ozone (O3) and carbon monoxide (CO) profiles from the CARIBIC program with the results from the regional chemistry transport model (WRF-Chem) to investigate the role of local and regional emissions and long-range
Externí odkaz:
https://doaj.org/article/b4216b51d8864505be20127e352e08f3