Zobrazeno 1 - 10
of 1 461
pro vyhledávání: '"Osano OF"'
Autor:
Osano, Bob
This correspondence delves into the application of dynamical systems methodologies within the context of cosmology, specifically addressing a preliminary strategy for determining the range for the equation of state for dark energy ($\omega_{DE}$). Ou
Externí odkaz:
http://arxiv.org/abs/2409.07053
Autor:
Osano, Bob
We study two transition periods in cosmology: radiation-to-matter and matter-to-dark energy. In each case, we define a new parameter $\chi$ given by the ratios of the two energy densities involved in the transition. Our study of the second epoch is m
Externí odkaz:
http://arxiv.org/abs/2406.00506
Publikováno v:
Civil and Environmental Engineering, Vol 20, Iss 1, Pp 54-67 (2024)
In this study, the vehicular air pollution from the Nairobi Expressway corridor was estimated by simulation using AERMOD dispersion model. The Vehicle Kilometer Travelled (VKT), emission factors, and traffic data were used to estimate the pollutants
Externí odkaz:
https://doaj.org/article/e9afa302a5ea48dc8936d6566ecd4bf1
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 2272-2281 (2024)
This paper proposes a trace-Mg-alloying strategy to fabricate high-performance graphene oxide (GO)-reinforced Al metal matrix composites (MMC). A minute quantity (0.4 wt%) of elemental Mg was introduced in Al–Si alloy powders. Individual GO nanoshe
Externí odkaz:
https://doaj.org/article/a8d1d178f5bf46df862e26658643e3fd
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 277, Iss , Pp 116323- (2024)
The Kakamega gold belt's natural geological enrichment and artisanal and small-scale gold mining (ASGM) have resulted in food and environmental pollution, human exposure, and subsequent risks to health. This study aimed to characterise exposure pathw
Externí odkaz:
https://doaj.org/article/0c9076eed23d4d7da93591fb0b157fb1
Autor:
Matara Caroline Mongina, Nyambane Simpson Osano, Yusuf Amir Okeyo, Ochungo Elisha Akech, Khattak Afaq
Publikováno v:
Logi, Vol 15, Iss 1, Pp 85-96 (2024)
This research employed machine learning approaches to classify acceptable or non-acceptable particulate matter (PM2.5) concentrations using a dataset that was obtained from the Nairobi expressway road corridor. The dataset contained air quality data,
Externí odkaz:
https://doaj.org/article/187d5d9592744243b405bd67ce54cc23
Publikováno v:
In Cities December 2024 155
Publikováno v:
In Ecotoxicology and Environmental Safety 1 June 2024 277
Publikováno v:
In Journal of Materials Research and Technology May-June 2024 30:2272-2281
Autor:
Alphayo I. Lutta, Stefan Bößner, Francis X. Johnson, Ivar Virgin, Monica Trujillo, Philip Osano
Publikováno v:
Frontiers in Sustainable Food Systems, Vol 8 (2024)
In this study, we analyze the purpose, challenges, and opportunities of transnational innovation systems using cassava as the case study crop in the East Africa region. Cassava scientifically referred to as Manihot esculenta Crantz, is an important f
Externí odkaz:
https://doaj.org/article/aebd533526c943dbaaf7710822eab85d