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Tytuł:
Influence of Ho3+ ions for quantitation of iron (Fe) in 0.1 M HCl solution using microwave plasma-atomic emission spectrometry (MP-AES)
Wpływ jonów Ho3+ na jakościowe oznaczanie żelaza w roztworze 0.1 M HCI metodą atomowej spektroskopii emisyjnej z plazmą mikrofalową (MP-AES)
Autorzy:
Stępień, M.
Bukowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/264243.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
MP-AES
ANOVA
Fe
Ho3+
Opis:
During research work in the Non-Ferrous Metals Department on AGH University of Science and Technology concerning new corrosion inhibitors for iron alloys in magnetic fields, Ho3+ ions were proposed as one of the new inhibitors. One of the methods for determining the rate of the corrosion process is determining the concentration of Fe ions in a solution. Due to the required high precision of determining the concentration of Fe ions in a solution contains Ho3+ ions with a wide range of concentrations, the influence of the matrix effect and interferences of Ho3+ ions must be known. The present work investigates the impact of Ho ions within a range of 0 to 100 mg/L for the quantitation of Fe ions in a 0.1 M HCl solution using the MP-AES method. The obtained results were analyzed using the single-factor ANOVA method. In a range of up to 40 mg/L, Ho3+ ions are not a significant factor to determining the Fe concentration by MP-AES.
W trakcie prac badawczych prowadzonych na Katedrze Fizykochemii i Metalurgii Metali Nieżelaznych na Akademii Górniczo-Hutniczej w Krakowie dotyczących nowych inhibitorów korozji stopów żelaza w polu magnetycznym, jako jeden z nowych inhibitorów zaproponowano jony Ho. Jedną z metod określenia postępów procesu korozji było oznaczenie stężenia jonów Fe w roztworze metodą atomowej spektroskopii emisyjnej w plazmie mikrofalowej (MP-AES). Z uwagi na wymaganą wysoką precyzję określenia niewielkiej zawartości jonów Fe w roztworach o różnej zawartości jonów Ho konieczne stało się zbadanie, czy obecność jonów Ho wpływa istotnie na ocenę ilościową jonów Fe metodą MP-AES. W niniejszej pracy zbadano wpływ stężenia jonów Ho w zakresie stężeń od 0 do 100 mg/l na oznaczenie zawartości Fe w 0,1 M kwasie solnym. Uzyskane wyniki poddano analizie statystycznej z wykorzystaniem metody ANOVA. W zakresie stężeń jonów Ho w analicie do 40 mg/L nie wykazano istotnego wpływu na oznaczenie żelaza na poziomie ufności 95%.
Źródło:
Metallurgy and Foundry Engineering; 2018, 44, 3; 109-117
1230-2325
2300-8377
Pojawia się w:
Metallurgy and Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of the Effect of Production Parameters on Mechanical Properties of Sintered Steels Using ANOVA
Autorzy:
Sułowski, M.
Jordan, A.
Czarski, A.
Matusiewicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/356320.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
powder metallurgy
analysis of variance (ANOVA)
Opis:
The object of the study was to assess the influence of selected production parameters of sintered Fe-Mn-Cr-Mo-C steels i.e. chemical composition, sintering temperature, sintering atmosphere and heat treatment on the following mechanical properties: impact toughness, hardness of the surface, tensile strength, bend strength after static tensile tests. In the investigations, the general linear model (GLM) of the multivariate analysis of variance ANOVA was used. All assumptions of ANOVA, i.e. randomization of the experiment, the normality of the residuals, equality of variance at different levels have been fulfilled and verified. The predictive strength of the constructed models expressed by the adjusted determination coefficient (R2adj) is at medium or large level – R2adj is in the range from 41.46% to 76.97%. This work is focused mainly on the ANOVA methodology. A wide physical interpretation of the results will be possible after the optimization of the ANOVA models used.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2A; 571-576
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterisation of CVC Yarn with Different Drafting Ratios in Vortex Spinning
Autorzy:
Repon, Md. Reazuddin
Islam, Tarikul
Rahman, Mahbubur
Malek, Md. Abdul
Jalil, Mohammad Abdul
Powiązania:
https://bibliotekanauki.pl/articles/2056286.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
CVC yarn
vortex spinning
tex
draft
ANOVA
Opis:
This study focuses on the impacts of the draft on the characteristics of MVS produced CVC blended yarn. The output of a finisher drawn sliver with a linear density of 3.54 ktex was converted into yarns of 18.45 tex (32 s /1 Ne) with the help of two separate delivery speeds: 350 and 410 m/min when possessing all constant spinning parameters. The properties of the yarn such as yarn anomaly, imperfections, tensile behaviour, and hairiness were investigated. The significance of independent variables and their relations with the physico-mechanical characteristics of CVC yarn was examined using two-way ANOVA at a 95% level of confidence.
Źródło:
Fibres & Textiles in Eastern Europe; 2021, 6 (150); 54--58
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simplistic regression-based genetic algorithm optimization of tool-work interface temperature
Autorzy:
Utkarsh
Kumar, Saumya
Kumar, Saaransh
Kiran, G. Uday
Mukhopadhyay, Arkadeb
Barman, Manik
Powiązania:
https://bibliotekanauki.pl/articles/38884187.pdf
Data publikacji:
2022
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
turning
tool-work thermocouple
cutting temperature
ANOVA
Opis:
This work aims to investigate the average tool-work interface temperature for the HSS tool and AISI 1040 steel pair. A tool-work thermocouple is proposed for the measurement of temperature because of its simple construction in addition to the low cost. The machining process of AISI 1040 steel is considered due to its extensive application, including industry usage. The changes in cutting temperature are studied for combinations of cutting speed, feed and the depth of cut during turning operation. The orthogonal array L9 by Taguchi is adopted for designing the experiments within a restricted set of runs. The average cutting temperature shows an increasing curve with functions of speed versus depth of cut and speed versus feed. But no clear trend is observed for a combination of feed versus depth of cut. A second-order regression equation with reasonable accuracy (R2 = 0.99) is fitted using the data. Analysis of variance (ANOVA) reveals the highest contribution from cutting speed, which influences average temperature at the interface of tool and work. Further, the genetic algorithm predicts an optimal combination of parameters, which is 82.542 m/min cutting speed, 0.276 mm/rev feed rate and 0.2 mm depth.
Źródło:
Engineering Transactions; 2022, 70, 2; 141-156
0867-888X
Pojawia się w:
Engineering Transactions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supply chain management in SMEs: evidence from Poland and Kazakhstan
Autorzy:
Kot, S.
Onyusheva, I.
Grondys, K.
Powiązania:
https://bibliotekanauki.pl/articles/125513.pdf
Data publikacji:
2018
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
ANOVA analysis
small and medium enterprises
supply chain management
analiza ANOVA
małe i średnie przedsiębiorstwa
zarządzanie łańcuchem dostaw
Opis:
The research aimed to assess Supply Chain Management (SCM) in small and medium enterprises in Kazakhstan and Poland, and, more specifically, identify similarities and differences in the approach to the SCM concept in selected countries. The research methodology was based on ANOVA analysis comparing samples of contemporary SMEs operating in Poland and Kazakhstan. Primary data was collected using the CAWI quantitative method and then studied using the ANOVA statistical data analysis method. The research results demonstrated similar involvement in the implementation of the concept with significant differences in some areas, such as cost reduction and focus on end customers. The concept of Supply Chain Management is a very common subject of theoretical and practical analysis. Even though research efforts in this area indicate the positive effects of the implemented concept, most of them concern large organisations. The research results showed similar involvement in the implementation of the concept, although significant differences were found in selected areas, such as cost reduction and focus on end customers.
Źródło:
Engineering Management in Production and Services; 2018, 10, 3; 23-36
2543-6597
2543-912X
Pojawia się w:
Engineering Management in Production and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantitative changes in various nutrient ratios in cultivated plants in relation to fertilisation
Autorzy:
Jakubus, M.
Bakinowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1192390.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
fertilisation
plants
macroelements
quantitative ratios of nutrients
ANOVA
Opis:
The quality of plants can be assessed according to the basic quantitative nutrient ratios. Moreover, proportions and relationships between macronutrients in plant biomass can be an indicator of the composition of plants and nutrient limitation. The research deals with the influence of soil amendment with mineral, organic and mineral-organic fertilisation on quantitative changes in nutrient ratios determined for camelina, white mustard and spring barley cultivated on light soils in subsequent years. A 3-year pot experiment was conducted with two doses equivalent to 70 kg N ha-1 (I) and to 170 kg N ha-1 (II). Plant material was subjected to chemical analyses in order to assess the macronutrient content, after which mutual proportions of individual nutrients were calculated based on the acquired data. Changes in ratio values were visualised using statistical tools, i.e. multivariate analysis of variance MANOVA and standard analysis of variance ANOVA. Regardless of the applied fertilisation, white mustard showed the highest values of most calculated nutrient ratios, although the values of nutrient ratios were consistent with those given in the literature as adequate only for spring barley. Generally, the fertilisers applied in a dose equivalent to 170 kg N ha-1 resulted in higher values of nutrient ratios, which was observed especially in the case of NPK. The study clearly demonstrated that the plant species diversity as well as fertilisation play a crucial role in quantitative changes of nutrient ratios. It is worth stressing that both organic fertiliser and mineral-organic fertiliser similarly affected nutrient ratio values.
Źródło:
Journal of Elementology; 2020, 25, 3; 1155-1174
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of FSW welding parameters on the tensile strength of aluminum alloys
Autorzy:
Serier, Mohamed
Berrahou, Mohamed
Tabti, Affaf
Bendaoudi, Seif-E
Powiązania:
https://bibliotekanauki.pl/articles/94104.pdf
Data publikacji:
2019
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
tensile strength
friction stir welding
aluminum alloy
ANOVA
Opis:
The friction stir welding process is an innovative technique for joining metals using plasticity, without presenting the fusion. It was first applied to aluminum alloys, for example copper, steel alloys, polymers and others. In this work the effects of the rotational speed, the speed of travel and the axial force of the tool were grouped in a mathematical model to quantify their influences on the weld seam. In this context and with of the experimental tests, the desired objective through this study is to describe the tensile strength of the cord resulting from this welding operation, for the qualification of this type of parts with an optimum adapted to a given application.
Źródło:
Archives of Mechanical Technology and Materials; 2019, 39; 41-45
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial variability and efficiency of treatment mean comparisons in an experiment with fodder pea using modern statistical methods.
Autorzy:
Gołaszewski, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/2198840.pdf
Data publikacji:
2001-06-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
spatial variability
ANOVA
ANCOVA
NNA
kriging
relative efficiency
Opis:
It is typical of breeding experimentation to conduct experiments on large breeding material tested on small plots with a limited number of replications. Under such conditions, observations made on adjacent plots are biased by the effect of autocorrelation and fertility trends. The actual treatment effects can be masked and the capability of the breeder to detect true treatment differences is impaired. This paper deals with the problem of the estimation of effects of spatial variability and their impact on the efficiency of treatment comparisons. The considerations are based on the results from a breeding experiment with 25 treatments of fodder pea arranged according to the partially balanced incomplete block design (IBD) with 4 replications. Plant height and seed yield were analysed with the conventional statistical method ANOVA, the nearest neighbour analysis (NNA) and kriging. Eventually, the efficiency of the neoclassical methods relative to the completely randomised design (CRD) and randomised block design (RBD) was calculated. The estimation of the treatment effect on plant height was accomplished most efficiently with the NNA, whereas the efficiency of the alternative methods in the estimation of seed yield was comparable to the efficiency of the RBD.
Źródło:
Plant Breeding and Seed Science; 2001, 45, 1; 87-98
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental demonstration of Measurement System Analysis
Dekompozycja oraz analiza składników błędu systemu pomiarowego z zastosowaniem metodologii Six Sigma
Autorzy:
Król, A.
Czaja, W.
Kost, G.
Czop, P.
Wszołek, G.
Jakubowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/277137.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
analiza systemu pomiarowego
MSA
analiza ANOVA
walidacja
tester serwohydrauliczny
measurement system analysis
variance analysis ANOVA
validation
servo-hydraulic tester
Opis:
This work presents the application of Measurement System Analysis (MSA) and the advantages of the Six Sigma approach in the validation of a servo-hydraulic tester. The diagnosis of repeatability and reproducibility by using repeatability (R) and reproducibility (R) gage analysis (so called Gage R&R Type II tool) which shows the correct operation of the measuring system including uncertainty of staff and measuring instrumentation. The Gage R&R Type II tool is based on the analysis of variance, called ANOVA. The structural approach to the subject has also provided knowledge of the error of the measurement system.
W artykule zaprezentowano zastosowanie analizy systemu pomiarowego (MSA) oraz zalety Six Sigma w podejściu walidacji testera serwohydraulicznego. Ustalenie stopnia powtarzalności i odtwarzalności przez użycie analizy powtarzalności (repeatability - R) i odtwarzalności (reproducibility - R) zwanej Gage R&R Type II, która pokazuje prawidłową pracę systemu pomiarowego, w tym niepewność pracowników oraz narzędzi pomiarowych. Narzędzie Gage R&R Type II bazuje na analizie wariancji zwanej ANOVA. Podstawowym podejściem do wiedzy na temat badanego obiektu jest poznanie błędu samego systemu pomiarowego.
Źródło:
Pomiary Automatyka Robotyka; 2013, 17, 1; 92-96
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ANOVA using commutative Jordan algebras, an application
Autorzy:
Rodrigues, Paulo
Mexia, João
Powiązania:
https://bibliotekanauki.pl/articles/729984.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
commutative Jordan algebras
variance components
orthogonal models
ANOVA
Opis:
Binary operations on commutative Jordan algebras are used to carry out the ANOVA of a two layer model. The treatments in the first layer nests those in the second layer, that being a sub-model for each treatment in the first layer. We present an application with data retried from agricultural experiments.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2006, 26, 2; 179-191
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zero Defect Manufacturing Using Digital Numerical Control
Autorzy:
Ly Duc, Minh
Bilik, Peter
Powiązania:
https://bibliotekanauki.pl/articles/2172178.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
digital numerical control
Taguchi
ANOVA
Lean Six Sigma
Opis:
This paper proposes the application of the digital numerical control (DNC) technique to connect the smart meter to the inspection system and evaluate the total harmonic distortion (THD) value of power supply voltage in IEEE 519 standard by measuring the system. Experimental design by the Taguchi method is proposed to evaluate the compatibility factors to choose Urethane material as an alternative to SS400 material for roller fabrication at the machining center. Computer vision uses artificial intelligence (AI) technique to identify object iron color in distinguishing black for urethane material and white for SS400 material, color recognition results are evaluated by measuring system, system measurement is locked when the object of identification is white material SS400. Computer vision using AI technology is also used to recognize facial objects and control the layout of machining staff positions according to their respective skills. The results obtained after the study are that the surface scratches in the machining center are reduced from 100% to zero defects and the surface polishing process is eliminated, shortening production lead time, and reducing 2 employees. The total operating cost of the processing line decreased by 5785 USD per year. Minitab 18.0 software uses statistical model analysis, experimental design, and Taguchi technical analysis to evaluate the process and experimentally convert materials for roller production. MATLAB 2022a runs a computer vision model using artificial intelligence (AI) to recognize color objects to classify Urethane and SS400 materials and recognize the faces of people who control employee layout positions according to their respective skills.
Źródło:
Management and Production Engineering Review; 2022, 13, 3; 61--74
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of Output Responses during EDM of AZ91 Magnesium Alloy using Grey Relational Analysis and TOPSIS
Autorzy:
Tajdeen, A.
Megalingam, A.
Powiązania:
https://bibliotekanauki.pl/articles/2049133.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AZ91 magnesium alloy
EDM
TOPSiS
GRA
ANOVA
Opis:
Unconventional machining of magnesium alloys through die sinking and Wire electrical discharge Machining (WEDM) processes are preferred over conventional machining processes to overcome the rapid loss in strength and affinity that occurs with tool materials at high temperatures. in the present study, AZ91 magnesium alloy is machined in EDM using a prepared alloy tool (copper alloyed with titanium diboride). Based on Taguchi’s l27 orthogonal array, a total of 27 experiments have been conducted by varying the process parameters such as pulse on time (Ton), gap voltage (Vg) and current (Ip) with three different levels. Techniques for Order Preference by Similarity to ideal Solution (TOPSIS) and Grey Relational Analysis (GRA) have been applied to optimize the response parameters of EDM to obtain maximum Material Removal Rate (MRR) and minimum Tool Wear Rate (TWR) and Surface Roughness (SR). Analysis of variance (ANOVA) is carried out based on F-test at a confidence interval of 95% to confirm the significant influence of individual parameters. From the above two optimization techniques, the obtained optimal values are current 15 A, gap voltage 55 V, pulse on time 30 μs and an error of less than 5% is observed from the confirmation experiments. Scanning Electron Microscope (SEM) images revealed that there is no formation of cracks but micro pits and holes are observed.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 4; 1105-1113
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The financial transaction tax: an ANOVA assessment of selected EU countries
Autorzy:
Raisová, Manuela
Regásková, Martina
Lazányi, Kornélia
Powiązania:
https://bibliotekanauki.pl/articles/22444433.pdf
Data publikacji:
2020
Wydawca:
Instytut Badań Gospodarczych
Tematy:
taxation
finance
European Union
financial transaction tax
ANOVA
Opis:
Research background: There are various forms of fiscal taxation of the financial assets. In recent times, the discussion about financial transaction tax in the EU is associated with finding the solution to problems due to great financial crisis. The European Commission has made some efforts to strengthen capital regulation and it has adopted the Directive about implementing enhanced cooperation in the field of financial transaction tax, where it analyzed options and impacts of FTT according to those countries which have already implemented similar transaction taxes in their national legislatives. Purpose of the article: Our aim is to find out the economic relationship between FTT and economic growth and to analyze the effect of FTT within selected EU countries. Methods: In this paper, we will analyze the banking environment in the EU area, and we emphasize the correlation between tax policy and economic growth. We will test FTT through three-way mixed-effects ANOVA, and analyze three Member states, Belgium, Ireland and the United Kingdom, which have very active attitude to implementation of FTT within other EU countries. Findings & Value added: We are interested in: (1) testing the relationship between the financial transaction tax (FTT) and economic growth (GDP); and (2) to verify the hypothesis that FTT could improve GDP growth in a country. We assume that if a country has adopted FTT in its tax system, then it will lead to a significant GDP growth, and so it could lead to financial market improvement after the crisis. Our results have shown that an increase in FTT volume would lead only to a negligible increase in the economic growth.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2020, 15, 1; 29-48
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IDENTYFIKACJA ZAINTERESOWANIA DOTACJAMI JAKO ZJAWISKA SEZONOWEGO
IDENTIFICATION OF INTEREST FOR SUBSIDIES AS A SEASONAL PHENOMENA
Autorzy:
Jegorow, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/453120.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
analiza ANOVA
analiza post hoc
dotacje
Google Trends
przedsiębiorczość zależna
sezonowość
ANOVA analysis
post hoc analysis
subsidies
dependent entrepreneurship
seasonality
Opis:
W artykule podjęto próbę identyfikacji zainteresowania dotacjami w Polsce na podstawie danych wygenerowanych z aplikacji Google Trends. Przedmiotem przeprowadzonej analizy były szeregi czasowe obejmujące drugą dekadę XXI wieku. Rozstrzygnięcie faktu występowania statystycznie istotnych różnić pomiędzy średnimi w badanych grupach, wyznaczonych układem poszczególnych miesięcy, oparte zostało na analizie ANOVA. Otrzymane wyniki pozwalają twierdzić, że zainteresowanie dotacjami ma charakter sezonowy, z wyraźnym nasileniem na początku roku oraz tendencją spadkową w okresie wakacji oraz pod koniec roku.
The article attempts to identify the demand for subsidies in Poland based on data generated using the Google Trends application. The subject of the analysis were the time series covering the second decade of the 21st century. The decision on the occurrence of statistically significant differences between means in the studied groups (months) was based on the ANOVA analysis. The obtained results allow to claim that the demand for subsidies is seasonal, with a pronounced intensity at the beginning of the year and a downward trend in the period of holidays and at the end of the year.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2018, 19, 2; 140-150
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody statystyczne analizy danych w kompletnej klasyfikacji Odmiana ×Agrotechnika × Miejscowość × Rok (G×M×L×Y) z PDOiR
Statistical methods for data analysis in the complete classification Cultivar × Crop Management × Location × Year (G×M×L×Y) from PVTS
Autorzy:
Mądry, Wiesław
Derejko, Adriana
Powiązania:
https://bibliotekanauki.pl/articles/2198701.pdf
Data publikacji:
2014-09-30
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
model mieszany ANOVA
łączna analiza wariancji
AMMI
analiza skupień
PDOiR
mixed linear ANOVA model
combined analysis of variance
cluster analysis
PVTS
Opis:
Doświadczenia porejestrowe są prowadzone od 1998 roku w ramach Porejestrowego Doświadczalnictwa Odmianowego i Rolniczego (PDOiR). W tym systemie wykonuje się serie doświadczeń odmianowych i odmianowo-agrotechnicznych. Doświadczenia PDOiR stanowią ostatni etap wdrażania postępu biologicznego do praktyki rolniczej. Pod względem merytorycznym i metodycznym system PDOiR jest koordynowany przez Centralny Ośrodek Badania Odmian Roślin Uprawnych. Realizacja serii doświadczeń w PDOiR odbywa się na terenie całego kraju w środowiskach (stacjach doświadczalnych) dobrze reprezentujących przestrzenną zmienność agro-ekosystemów w najważniejszych rejonach uprawy danego gatunku roślin w Polsce. W niniejszej pracy przedstawione zostały podstawy teoretyczne proponowanych, klasycznych, adaptowanych i adekwatnie rozwiniętych metod statystycznych, tj. łączna analiza wariancji, szczegółowe porównania wielokrotne, analiza AMMI oraz analiza skupień. Ponadto zaprezentowano użyteczność tych metod do wykorzystania ich w analizie danych w kompletnej klasyfikacji Odmiana × Agrotechnika × Miejscowość × Rok, pochodzących z PDOiR.
Postregistration Experiments are conducted since 1998 as part of the Post-registration Variety Testing System (PVTS). In this system series of varietal and varietal-agronomic experiments are performed. Experiments in PVTS represent the last stage in the implementation of biological progress to agricultural practice. PVTS is coordinated by the Research Centre for Cultivar Testing in terms of design and methodology. The implementation of a series of experiments in PVTS is held throughout the country in environments (Cultivar Testing Stations) representing well the spatial variability of agro-ecosystems in the major growing areas of the particular plant species in Poland. In this paper the theoretical basis is proposed, as well as classical, adapted and adequately developed statistical methods, i.e. the combined analysis of variance, multiple comparison, AMMI analysis and cluster analysis are presented. Moreover, the usefulness of these methods for analyzing the data in the complete classification of Cultivar × Crop Management × Location Year, coming from PVTS is presented.
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2014, 273; 83-100
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 80

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