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Browsing by Subject "control charts"

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  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Analiza stabilności składu chemicznego wód ze źródła św. Stanisława w Krakowie
    (Data obrony: 2018-08-01) Piorun, Ewa
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    Analizie stabilności został poddany skład chemiczny wody ze źródła św. Stanisława w Krakowie. Woda ta pochodzi z jurajskiego piętra wodonośnego i jest klasyfikowana jako chlorkowo-siarczanowo-sodowa, siarczkowa [Cl – SO4 – Na, H2S] według klasyfikacji Szczukariewa-Prikłońskiego. Analizę stabilności oparto na wynikach 7 analiz próbek wody pobieranych w okresie od czerwca 2017 roku do maja 2018 roku. Ocena stabilności została wykonana dla następujących składników: Na+, Ca2+, Mg2+, K+, Sr2+, Fe2+, Li+, Mn2+, Cl-, SO4 2-, HCO3 - oraz siarczków. Pierwszym etapem analizy danych była kontrola jakości wykonanych analiz wody za pomocą błędu na podstawie bilansu jonowego. Do wykonania wykresów typu skrzynka z wąsami, wyznaczenia podstawowych statystyk opisowych, weryfikacji rozkładu normalnego i sporządzenia kart kontrolnych wykorzystano program PS IMAGO oparty na IBM SPSS Statistic v. 24. Weryfikację trendów zmian w układzie czasowym wykonano w programie GWSDAT v. 2.1.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Assessment of statistical stability of steel strip hot-rolling process
    (2008) Czarski, Andrzej
    Statistical methods belong to the basic quality tools. Among statistical instruments the statistical process control SPC takes particular place. One of the principal tasks of SPC is monitoring of a process by means of control charts. They are first of all Shewhart's control charts. The aim of investigations was to assess stability of technological process of hot-rolling of steel strip. There were available the results of thickness measurements madę with an X-ray thickness gauge as well as measurements of convexity and wedge shape made with a profile measurement gauge. The assessment of statistical process stability was performed by means of Shewarfs control charts technique. In case of thickness the estimation of capability indices Cp, Cpk and Pp, Ppk have been carried out, in addition.
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    Item type:Thesis, Access status: Restricted ,
    Ocena stabilności składu chemicznego wód leczniczych Solca-Zdroju
    (Data obrony: 2009-12-17) Strużyna, Agnieszka
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    This paper shows the preliminary analysis of stability of chemical components within the therapeutic water of Cretaceous and Jurassic aquifers in the vincinity of Solec Spa. The assesment was performed on results of archival chemical analysis of water from Szyb Solecki, Solec 2 Karol, Solec 2B intakes. Control charts performed in Analyst 3.5 DB programme were used to evaluate stability of chemical parameters (pH, temperature, mineralization) and components, which influence on hydrogeochemical type of water: Cl-, SO4 2-, Na+, I- and H2S. GWstst programme was used to verify whether noticed monotonic trends were statisticaly significant. On the basis of this analysis the fallowing information was derived: the content of Cl-, SO4 2-, Na+ in water from all intakes in Solec Spa is stable (most of the values is in range x ± 2s ), in Solec 2 Karol intake the content of SO4 2- is lower than 20 %mval and should no longer influence the hydrogeochemical type of water, monotonic upward trend of Cl- content is not the result of change in detection method, the increase of water extraction in Solec 2 Karol results only in minor changes in content of I- and H2S. The state of Solec Spa therapeutic water is good.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Ocena stabilności składu chemicznego wód podziemnych ze Zdroju Królewskiego
    (Data obrony: 2012-09-28) Starowicz, Agnieszka
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    Zdrój Królewski in Kraków intakes groundwater from Jurassic formations, which have been used by the inhabitants since 1991. The Department of Hydrogeology and Geology Engineering (AGH- University of Science and Technology) has been monitoring the water quality since 1998 and about 220 samples have been collected. Water samples for analysis (normal and duplicate ) were collected by a student monthly from May 2011 to April 2012 and transported to laboratory. In the KGHI laboratory the samples were labeled with the ICP-OES method (PN-EN ISO 11885:2009) using PLASMA 40 by Parkin Elmer and with the ICP-MS (EN-ISO 17294-1:2006) method. The assessment of stability of chemical composition was conducted for the following components: $SO_{4}$, $Cl$, $HCO_{3}$, $SiO_{2}$, $K$, $Na$, $Mg$, $Ca$, $B$, $Ba$, $Fe$, $Li$, $Mn$, $Sr$, $Zn$, using the Control Charts method.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Ocena stabilności składu chemicznego wód podziemnych ze Zdroju Nadzieja
    (Data obrony: 2014-10-30) Bednarczyk, Marcela
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    Zdrój Nadzieja In Kraków is an artesian groundwater from Jurassic formations. These waters are used for drinking by residents of the city from march 1990, and since 1998 the Department of Hydrogeology and Geology Engineering AGH- University of Science and Technology has been monitoring the water quality. To date, approximately 263 samples of water has been collected. The samples used for the analysis were collected by the student in average monthly intervals from May 2012 to April 2013 and transported to the laboratory where it was determined ICP-OES method and ICP-MS. Stability evaluation was conducted for the chemical composition of such components as Cl, SO4, HCO3, SiO2, K, Na, Mg, Ca, B, Ba, Fe, Li, Mn, Sr, Zn, using the Control Charts method.