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Wyszukujesz frazę "Jachimowski, A." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Factors Affecting Water Quality in a Water Supply Network
Autorzy:
Jachimowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/124812.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
factor analysis
secondary contamination of water
water supply network
water quality
Opis:
An effect of factors determining water quality in the water supply network in Kraków is assessed. The data collected over a four-year research period included quality parameters of water taken from the water distribution system in the period between 1 January 2011 and 31 December 2014. In the analysis the supply zones of four municipal water treatment plants in Krakow were considered. The selection of 29 water sampling points within the supply area allowed comparing water quality with respect to operational and technological aspects. Factor analysis enabled 4 components explaining correlations between tap water quality variables to be distinguished. It follows from the research performed that the obtained factors applied to 77% of overall water variability. The highest share was assigned to factor 1 that explained 32% of the chemical composition of water under consideration and was correlated with calcium, conductance, nitrates (V), magnesium and to a moderate extent with Σ THM (with negative sign).
Źródło:
Journal of Ecological Engineering; 2017, 18, 4; 110-117
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic distribution into transport network for defined scenarios of transport system development in aspect of environmental protection
Autorzy:
Jacyna-Gołda, I.
Gołębiowski, P.
Jachimowski, R.
Kłodawski, M.
Lewczuk, K.
Szczepański, E.
Sivets, O.
Merkisz-Guranowska, A.
Pielecha, J.
Powiązania:
https://bibliotekanauki.pl/articles/246948.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
distribution of traffic on the network
external costs of transport
development of transport system
Opis:
The article is a result of research work carried out under the project EMITRANSYS for shaping ecological transport system. The paper presents selected aspects of multi-variant distribution of traffic into transport network for defined scenarios of transport system development. Distribution of traffic on the network is made due to the global criterion function. Partial criteria for distribution of traffic are: external costs, marginal costs and average costs of the transport services expressed in monetary units and in emission units. An important aspect of the development of transport network is to include the external costs of transport activity to economical counting. The harmful components of exhaust gases, external costs for each mode of transport, list of selected external costs for each mode of transport [eurocents/vehicle-km], structure of communication between Warsaw - Gdansk, characteristics of connections in the communication network between Warsaw and Gdansk, distribution of passengers stream in relation Warsaw – Gdansk, the distribution of the passengers stream in relation Warsaw – Gdansk for the second scenario according to criterion of average and marginal costs are presented in the paper.
Źródło:
Journal of KONES; 2014, 21, 4; 183-192
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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