Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Alfred Micallef"'
Autor:
Alfred Micallef, Christopher Micallef
Publikováno v:
Sci, Vol 6, Iss 3, p 48 (2024)
The well-known Gaussian plume model has proven to be very useful in simulating the atmospheric dispersion of air pollutants (both gaseous and particulates). Nevertheless, the nature of the model presents problems in the actual computation of concentr
Externí odkaz:
https://doaj.org/article/97c63a1eaa1d41de8e9a0e2ced9b252e
Autor:
Alfred Micallef
Publikováno v:
Sci, Vol 6, Iss 3, p 44 (2024)
Preliminary monitoring campaigns in three (nonindustrial) indoor environments (a corridor, a coffee room with a kitchenette, and a single-occupancy office, all located in the same public building) were carried out, in which the vertical concentration
Externí odkaz:
https://doaj.org/article/6245f1bd1f2e45b1ae84354401d8ce3b
Autor:
Alfred Micallef
Publikováno v:
Applied Sciences, Vol 13, Iss 24, p 12982 (2023)
A simple and easily implementable model and the associated computer code for predicting the solar irradiance at the earth’s surface have been developed. The input requirements of the model include Julian day, time, geographical latitude, atmospheri
Externí odkaz:
https://doaj.org/article/c171c766477a49efa7540585490f1140
Publikováno v:
Journal of Cultural Heritage. 37:1-8
This work describes the integrated multidisciplinary approach taken in the study of the Ħal Saflieni Hypogeum. Measurements of temperature, relative humidity (RH) and carbon dioxide (CO2) were analysed and cross-compared to identify common trends. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98761d437f13391f1e5c7f9862c32559
https://doi.org/10.1016/j.culher.2018.10.014
https://doi.org/10.1016/j.culher.2018.10.014
Autor:
Pierre S. Farrugia, Alfred Micallef
Publikováno v:
Meteorology and Atmospheric Physics. 129:495-506
The standard deviation of wind direction is an important parameter in atmospheric pollution management. It can be used to calculate the rate of horizontal diffusion and from this the transport and dispersion of air contaminants can be determined. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e99d94a2aea640da43af6847ed15f712
https://doi.org/10.1007/s00703-016-0483-8
https://doi.org/10.1007/s00703-016-0483-8
Autor:
Alfred Micallef, Pierre S. Farrugia
Publikováno v:
Science Trends.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eae694099d0635eba4187a25447643d8
https://doi.org/10.31988/scitrends.10783
https://doi.org/10.31988/scitrends.10783
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 55:781-792
Power series solutions to the boundary layer equations for laminar point and line thermal plumes in natural convection have been derived in terms of recurrent relations. These together with the initial conditions constitute closed-form solutions for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99fb942edfd36730ad7d01f111c258b
https://doi.org/10.1134/s0021894414050071
https://doi.org/10.1134/s0021894414050071
Publikováno v:
Journal of Engineering Thermophysics. 23:236-255
Closed form solutions to the boundary layer equations for turbulent point and line thermal plumes evolving in natural convection have been obtained in the form of power series for the case when the turbulent viscosity is assumed to be proportional to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f70415f76ec7462682d36311d1dbfac1
https://doi.org/10.1134/s1810232814030072
https://doi.org/10.1134/s1810232814030072
Autor:
Alfred Micallef, Pierre S. Farrugia
Publikováno v:
International Journal of Heat and Mass Transfer. 55:1931-1940
Turbulent asymmetric thermal plume evolves in a uniform upward flowing fluid in the region of mixed convection, where the far field velocity has a magnitude comparable to the velocities generated by the plume, are examined. In the process, a first or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c5fbcd74f6ac1eb44b44a6be8cab20
https://doi.org/10.1016/j.ijheatmasstransfer.2011.11.048
https://doi.org/10.1016/j.ijheatmasstransfer.2011.11.048
Publikováno v:
Journal of Applied Meteorology and Climatology. 48:2144-2151
The standard deviation of wind direction is a very important quantity in meteorology because in addition to being used to determine the dry deposition rate and the atmospheric stability class, it is also employed in the determination of the rate of h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79a1bcbeae10614f81a388055618c4f
https://doi.org/10.1175/2009jamc2050.1
https://doi.org/10.1175/2009jamc2050.1