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The paper presents results of investigation carried out on compaction ability of coarse grained burnt colliery spoils from “Wesoła” mine. The work was aimed at determining the infl uence of granulation, compaction energy and diameter of Proctor’s apparatus mould on compactibility parameters of colliery spoils. Compactibility parameters were determined with the use of standard and middle-size Proctor’s...
In our paper, we give the simulation results concerning the multiple-comparison procedures, especially their error measures, such as FWER and FDR. We compare the powers of four popular multiple-comparison procedures, applied to three standard statistical models. All of our simulations were carried out by using the R-project package.
The papers presents previous water managements strategies of the Selmęt Wielki Lake and the infl uence of change of the lake damming height on surroundings. Possibilities of increase retention capacity of the lake (till 1 mln m2), for using water for protected area in the lower part of the Jegrznia River, are considered. Prolongation of time with higher damming level of the lake would increase amount...
The aim of this work was the characteristic of spatial and temporary distribution of nitrogen oxides concentration (NO2, NO) from 10 monitoring air pollution stations in Warsaw agglomeration. The measurements of 1-hour NOx (NO2, NO) concentration data were used. The results of analysis mean annual value of NO2 concentration in regarding stations situated in rural areas and Warsaw is included in 8,4...
Recently observed the changes in Poznań suburban area (PSA), that have been mentioned above are mainly connected with a chaotic, spatially incoherent and harmful process of occupation not only of the PSA but also other open spaces – rural spaces (like fi elds and meadows) and forest ones. It has been postulated to indicate the areas permanently exempted from urbanization by the use of local plans...
The paper presents natural and anthropogenic causes changes of the Poland’s climate on the base of the meteorological data. It is diffi cult to distinguish anthropogenic climatic changes from the natural ones. The change of climate conditions in the 20th century resulted from the change of the character of atmospheric circulation (cyclonic south-western circulation) especially during winter and autumn...
Mathematical model groundwater level lawering in aquifer located between two lawpermeable layers due to vertical drainage system is presented. In order to determine the distributions of water heads calculations were performed for three modes of subsoil confi guration.
The paper presents the relationships between daily sums of global solar radiation and real sunshine duration and separately, mean for a day amount of total cloudiness (computed from three standard observation terms) within 11 May – 31 July period in Felin. This period is approximated to the insolation summer one and is characterised by a long day (at least 15.5) and slight differentiation in time...
Outdoor noise propagation, is infl uenced by the energy of the sound source as well as properties of the medium in which acoustic waves travel. Elements of component phenomena, popularly called meteorological phenomena, infl uence noise energy propagation in open area, shaping the air mass dynamic. Two case studies are offered: the city of Łódź (Poland) and Montelimar (France). The comparison shows...
In the paper there have been presented the results of a fi eld studies performed in 2001–2003 (carp breeding period), in order to establish the dynamism of the light conditions changes in a fi sh pond. The infl uence of shade caused by vegetation growing on the shore of the light conditions in the pond has been also analyzed. The results show a great changeability of the light conditions in a breeding...
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