Zobrazeno 1 - 10
of 337
pro vyhledávání: '"A. P. Jaman"'
The natural inflation model with a periodic cosine potential is ruled out by recent Planck 2018 data for the decay constant $f \lesssim 5.5~M_{\rm Pl}$. If the Planck data is combined with the BICEP Keck array and BAO data, the model is excluded (at
Externí odkaz:
http://arxiv.org/abs/2405.10155
We investigate the production process of induced gravity waves due to large scalar fluctuations in the paradigm of quintessential inflation. We numerically solve the Mukhanov-Sasaki equation for different sets of parameters to obtain the power spectr
Externí odkaz:
http://arxiv.org/abs/2307.12913
We analyze the spectrum of gravitational waves generated by the induced spectrum of tensor fluctuation during warm natural inflation. In our previous work it has been demonstrated that an epoch of warm natural inflation can lead to cosmologically rel
Externí odkaz:
http://arxiv.org/abs/2306.09641
Publikováno v:
Natural Hazards Research, Vol 4, Iss 3, Pp 470-485 (2024)
Social vulnerability assessment is a dynamic process, which varies from place to place. In the present study, the social vulnerability index (SVI) of Malda district has been prepared because of several impacts of flood inundation. The flood inundatio
Externí odkaz:
https://doaj.org/article/95f87d474a4348c5bef1783b32e5395a
Publikováno v:
Journal of Applied Informatics and Computing, Vol 8, Iss 1, Pp 91-97 (2024)
Face recognition in low-resolution images has seen significant advancements over the past few decades. Although extensive research has been conducted to improve accuracy in these conditions, one of the main challenges remains the difficulty in identi
Externí odkaz:
https://doaj.org/article/23d580791ae5440296c3c3ecfa79e1b1
Autor:
Yuxing Liao, Yilin Wang, YaJie Lin, Yuxi Xiao, Mohith Mohan, Rummana Jaman, Hao Dong, Jiao Zhu, Xuerui Li, Conglin Zhang, Guiyuan Chen, Jiaqi Zhou
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 288, Iss , Pp 117418- (2024)
Tetrabromobisphenol A (TBBPA) is a ubiquitous brominated flame retardant extensively incorporated into a wide range of products. As its utilization has escalated, its environmental exposure risks have concomitantly increased. The molecular properties
Externí odkaz:
https://doaj.org/article/8b688edf4cc343728fd8a7988339c250
Autor:
Irteja Hasan, Joyjit Dey, Md. Mustafizur Rahman Munna, Afiadeal Preya, Tahrin Bhuiyan Nisanur, Munira Jaman Memy, Mst. Zihan Shazia Zeba
Publikováno v:
Progress in Disaster Science, Vol 24, Iss , Pp 100381- (2024)
The continuous processes of erosion and deposition in rivers are intricately linked to changes in land use and land cover (LULC), reflecting dynamic landscape transformations. This study investigates the rate of riverbank erosion, channel shifting, a
Externí odkaz:
https://doaj.org/article/bafe11a3a03f4bfcb66e2bf55a8bcd87
Publikováno v:
Physics Letters B 835 (2022) 137510
We report on a study of the natural warm inflationary paradigm (WNI). We show two important new results arise in this model. One is that the observational constraints on the primordial power spectrum from the cosmic microwave background (CMB) can be
Externí odkaz:
http://arxiv.org/abs/2207.10394
Autor:
Majedul Islam Khan, Pranta Das, Md. Abu Mogira, M. Farhad Howladar, Sushmita Sarker Chnapa, Mohammad Saeiduj Jaman Chowdhury
Publikováno v:
Heliyon, Vol 10, Iss 15, Pp e35622- (2024)
Cementing is an essential downhole operation during the drilling of oil, gas, and geothermal wells, with the primary objective of providing structural support and a seal in the wellbore. It is important to attain adequate cement strength to preserve
Externí odkaz:
https://doaj.org/article/2b363cc1c3c3464fa6ba9aa8310f0894
Publikováno v:
Frontiers in Microbiology, Vol 15 (2024)
Externí odkaz:
https://doaj.org/article/83670c8600354caba20682dd60a4a973