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    Wyświetlanie 1-4 z 4
    Tytuł:
    Photochemical oxidation model of organic pollutants in greywater from a small household
    Autorzy:
    Bielski, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/207989.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    COD
    greywater
    small household
    ChZT
    woda szara
    małe gospodarstwo domowe
    Opis:
    The treatment of coagulated greywater from a small household was investigated. The processes of oxidation of organic compounds with hydrogen peroxide combined with ultraviolet radiation (H2O2/m3/UV) was described. Greywater with various initial COD and TOC concentrations was used in the H2O2/m3/UV process. The process parameters were hydrogen peroxide doses 0.5–4.0 kg H2O2/m3, UV (254 nm) light intensity 75.5 W/m2 and irradiation time – 1 h. The oxidation efficiency varied broadly from 15 to 98% and higher COD values corresponded to lower oxidation efficiencies. The average hydrogen peroxide consumption per kg of COD w was = 12.2 g H2O2/m3/g O2 COD, while per TOC it was w′ = 69.0 g H2O2/m3/g C. The experiments enabled one to developed mathematical models for coagulation and oxidation kinetics. The models showed that at the initial COD = 859 g O2/m3, the coagulant dose of 100 g Al3+/m3, the hydrogen peroxide dose of 4 kg H2O2/m3 and the UV irradiation time of 3 h it is possible to decrease the COD by 98.4%.
    Źródło:
    Environment Protection Engineering; 2020, 46, 1; 91-115
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wielkość rodziny i gospodarstwa domowego w miastach południowej Małopolski w XVII i XVIII wieku
    The Size of the Family and Household in the Towns of Southern Lesser Poland in the 17th and 18th Centuries
    Autorzy:
    Miodunka, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1367613.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    small towns
    Lesser Poland (Polish: Małopolska)
    a biological family
    a household
    lodgers
    servants
    Opis:
    The article presents the question of an average size of the biological family, the household, and an average population of a house in smaller towns of Southern Lesser Poland, and from 1772 the western part of Galicia. The presented problems have been researched on the basis of narrative sources (municipal court’s registers) and quantitative sources (inventories, military conscription lists, parish registers). The author has also used the method of family reconstruction (Wojnicz); and confirmed that the desired model of the family was a simple family, which is visible in young married couples’ aspirations for independence, as well as older parents’ aspirations for providing sufficient income to survive after making over their real property. A biological family was usually composed of 4 people. Not much bigger were the Old Polish burgher households, which were composed of 4.5–5 people on average in Christian families and about four in the Jewish ones. What is more, those households were clearly smaller than the peasant ones, but the houses in smaller towns more frequently than in the country were occupied by more than one household. Servants were common in households and lodgers in houses.
    Źródło:
    Przeszłość Demograficzna Polski; 2015, 37, 2; 129-147
    0079-7189
    2719-4345
    Pojawia się w:
    Przeszłość Demograficzna Polski
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    APPLICATION OF EBLUP ESTIMATION TO THE ANALYSIS OF SMALL AREAS ON THE BASIS OF POLISH HOUSEHOLD BUDGET SURVEY
    Autorzy:
    Jędrzejczak, Alina
    Kubacki, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/453676.pdf
    Data publikacji:
    2009
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
    Tematy:
    small area estimation
    empirical best linear unbiased predictor (EBLUP)
    household budget survey
    variance estimation
    Opis:
    In the paper the results of small area estimation using empirical best linear unbiased predictor (EBLUP) for the data coming from Polish Household Budget Survey are presented. The results were obtained using small area models of household expenditures for regions. Estimation of sampling errors was conducted by means of the balanced repeated replication (BRR) technique. The estimation of EBLUPs and their corresponding mean square errors (MSE) was carried out using variance components technique. To calculate MSE of EBLUP the maximum likelihood method (ML) and restricted maximum likelihood method (REML) were used. The computation was made using SAE package designed for R-project.
    Źródło:
    Metody Ilościowe w Badaniach Ekonomicznych; 2009, 10, 1; 121-130
    2082-792X
    Pojawia się w:
    Metody Ilościowe w Badaniach Ekonomicznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity in the socio-economic role of the main non-wood forest products for the inhabitants of small villages and large towns in Poland
    Autorzy:
    Barszcz, A.
    Suder, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/38413.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    diversity
    socioeconomic role
    non-wood forest product
    inhabitant
    small village
    large town
    Polska
    village
    town
    household income
    living standard
    Opis:
    The NWFPs (non-wood forest products) sector is of the crucial importance to the Polish households but its social and economic role is varied and depends on place of residence. For the inhabitants of villages and small towns forests are the place of working and NWFPs sale provides an additional financial resource. City-dwellers do not treat NWFPs as a source of income but rather as an element of recreation and they use these products mainly for their own needs. Some remarks for the developing of this sector in Poland were given in this paper.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2009, 51, 1
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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