Temat: reducing - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mechanisms of Microbiological Corrosion Employing Iron-Reducing Bacteria
Autorzy:: Jamaluddin, Nur Ain Atiqah
Yusoff, Mahani
Wee, Seng Kew
Masri, Mohamad Najmi
Powiązania:: https://bibliotekanauki.pl/articles/2174587.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: microbiological corrosion
iron-reducing bacteria
Opis:: Iron-reducing bacteria (IRB) seek to unravel iron corrosion for oil and gas steel pipeline failure. IRB continued to be dominating the microbiological corrosion of iron structures in steel by deteriorating steel surface via Fe(III) reduction. The mechanisms by IRB mediate Fe(III) reduction into Fe(II) for bacterial respiration to contribute to iron steel corrosion. However, the complexity of corrosion is not fully comprehended. It remains controversial due to the corrosion mechanisms proposed by IRB that may induce or inhibit corrosion when engaged with microbial biofilm. In this brief review, understanding microbiological corrosion mechanisms associated with IRB interactions may better understand microbiological corrosion and derive corrosion control.
Źródło:: Archives of Metallurgy and Materials; 2022, 67, 4; 1355--1358
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Empirical methods of reducing the observations in geodetic networks
Autorzy:: Kadaj, R.
Powiązania:: https://bibliotekanauki.pl/articles/145336.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: odwzorowanie kartograficzne
obserwacja geodezyjna
mapowanie
cartographic mapping
reducing of geodetic observations
empirical methods of reducing observations
mapping of long geodesics
Opis:: The paper presents empirical methodology of reducing various kinds of observations in geodetic network. A special case of reducing the observation concerns cartographic mapping. For numerical illustration and comparison of methods an application of the conformal Gauss-Krüger mapping was used. Empirical methods are an alternative to the classic differential and multi-stages methods. Numerical benefits concern in particular very long geodesics, created for example by GNSS vectors. In conventional methods the numerical errors of reduction values are significantly dependent on the length of the geodesic. The proposed empirical methods do not have this unfavorable characteristics. Reduction value is determined as a difference (or especially scaled difference) of the corresponding measures of geometric elements (distances, angles), wherein these measures are approximated independently in two spaces based on the known and corresponding approximate coordinates of the network points. Since in the iterative process of the network adjustment, coordinates of the points are systematically improved, approximated reductions also converge to certain optimal values.
Źródło:: Geodesy and Cartography; 2016, 65, 1; 13-40
2080-6736
2300-2581
Pojawia się w:: Geodesy and Cartography
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Characterization of a molybdenum-reducing bacterium with the ability to degrade phenol, isolated in soils from Egypt
Autorzy:: Ibrahim, Y.
Abdel-Mongy, M.
Shukor, M.S.
Hussein, S.
Ling, A.P.K.
Shukor, M.Y.
Powiązania:: https://bibliotekanauki.pl/articles/80115.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: molybdenum
molybdenum-reducing bacteria
contaminated soil
bioremediation
nonylphenol
phenol
Egypt
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 3
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Experimental analysis by measurement of surface roughness variations in turning process of duplex stainless steel
Autorzy:: Krolczyk, G. M.
Legutko, S.
Powiązania:: https://bibliotekanauki.pl/articles/220659.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: turning
coatings
friction-reducing
optical microscopy
surface roughness analysis and models
Opis:: The objective of the investigation was to identify surface roughness after turning with wedges of coated sintered carbide. The investigation included predicting the average surface roughness in the dry machining of Duplex Stainless Steel (DSS) and the determination of load curves together with roughness profiles for various cutting conditions. The load curves and roughness profiles for various cutting wedges and variable cutting parameters were compared. It has been shown that dry cutting leads to a decrease in friction for lubricated surfaces, providing a small initial contact area where the surface is contacted. The study has been performed within a production facility during the production of electric motor parts and deep-well pumps.
Źródło:: Metrology and Measurement Systems; 2014, 21, 4; 759-770
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Promoting eyewitness testimony quality: Warning vs. reinforced self-affi rmation as methods of reduction of the misinformation effect
Autorzy:: Szpitalak, Malwina
Polczyk, Romuald
Powiązania:: https://bibliotekanauki.pl/articles/951974.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: misinformation effect
warning
reinforced self-affirmation
eyewitness testimony
reducing misinformation effect
Opis:: In a typical experiment on the misinformation effect, subjects fi rst watch some event, afterwards read a description of it which in the experimental group includes some incorrect details, and answer questions relating to the original event. Typically, subjects in the misled experimental group report more false details than those from the control group. The main purpose of the presented study was to compare two methods of reducing the misinformation effect, namely – warning against misinformation and reinforced self-affi rmation. The reinforced self-affi rmation consists of two elements: the participants recall their greatest achievements of life, and are being given a positive feedback about their performance in a memory task. The obtained results showed that the reinforced self-affi rmation was more effective than warning, although the latter also caused a significant reduction of the vulnerability to misinformation.
Źródło:: Polish Psychological Bulletin; 2013, 44, 1; 85-91
0079-2993
Pojawia się w:: Polish Psychological Bulletin
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Controlling continuous bioreactor via nonlinear feedback: modelling and simulations approach
Autorzy:: Aguilar-López, R.
Neria-González, I.
Powiązania:: https://bibliotekanauki.pl/articles/200156.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nonlinear feedback
sulfate-reducing process
continuous bioreactors
Lyapunov stability
nieliniowe sprzężenie zwrotne
proces redukcji siarczanu
bioreaktor
metoda Lapunowa
Opis:: The aim of this work is to present a class of nonlinear controller with an exponential-type feedback in order to regulate the sulfate mass concentration via the input flow in a continuous stirred tank bioreactor of an anaerobic sulfate-reducing process. The corresponding kinetic terms in the bioreactor’s modeling are modeled by unstructured modeling approach, which was experimentally corroborated. A sketch of proof of the closed-loop stability of the considered system is done under the framework of Lyapunov theory. Numerical experiments are conducted to show the performance of the proposed methodology in comparison with a well-tuned sigmoid controller.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 1; 235-241
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Reducing the Negative of the Iron in the Alloy Based on Al-Si-Mg by Manganese
Autorzy:: Podprocka, R.
Bolibruchova, D.
Chalupova, M.
Powiązania:: https://bibliotekanauki.pl/articles/381839.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: alloy Al-Si-Mg
manganese
intermetallic phases
reducing of iron
stop Al-Si-Mg
mangan
fazy międzymetaliczne
redukcja żelaza
Opis:: In Al-Si alloy the iron is the most common impurity and with presence of other elements in alloy creates the intermetallic compounds, which decreases mechanical properties and increases of porosity. The cause of the negative effect of intermetallic particles on the mechanical properties is that it is more easily break off the tension load as the aluminium matrix or small particles of silicon. By adding suitable alloying elements, also known as iron correctors, is possible to reduce this harmful effect. In the article is evaluated influence of manganese on microstructure with performed EDX analysis selected intermetallic phases and tensile test and measurement of length of Al5FeSi phase. For realization experiments was used AlSi7Mg0.3 alloy with increased iron content. Manganese was added in the amount 0.3 wt. %, 0.6 wt. %, 0.8 wt.% and 1,2 wt. %. From performed measurements it has been concluded, that increased amount of manganese, i.e. Mn/Fe ratio, does not have significant influence on mechanical properties AlSi7Mg0.3 alloy in the melted state.
Źródło:: Archives of Foundry Engineering; 2017, 17, 2; 212-216
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Comparison of harmfulness of the two-spotted spider mite Tetranychus urticae Koch and the carmine spider mite Tetranychus cinnabarinus [Boisduval] on greenhouse grown cucumber
Autorzy:: Bichta, P
Tomczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/65455.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Tetranychus cinnabarinus
sugar
greenhouse
reducing sugar
harmfulness
cucumber
Tetranychus urticae
two-spotted spider mite
phenolic compound
population
carmine spider mite
Opis:: Experiment was conducted twice: in spring of 1999 and 2000. Two greenhouse cucumber varieties (Aramis and Corona) with different susceptibility to spider mites were employed to compare the harmfulness of the two-spotted spider mite and the carmine spider mite. Effects of the two-spotted spider mite and the carmine spider mite feeding either on the fruit production or on the content of some organic compounds were measured. Moreover, development of spatially separated populations of the two-spotted spider mite and the carmine spider mite was analysed. Two abiotic parameters were taken into account: temperature and sunlight duration. Increment of the carmine spider mite population density was faster during the season of higher temperature and sunlight duration (spring of 2000). Differences in the development of two-spotted spider mite were not observed. The increase of fruit weight was closely correlated with increase of density of spider mites. The feeding of relatively low populations of the carmine spider mite (up to 5-7 mobile stages per leaf) stimulated the weight increase of fruits collected from Aramis and Corona varieties. The feeding of two-spotted spider mite and the carmine spider mite affected the distribution of organic compounds produced in plants. In quite severely infested leaves (2-3 damage level of De Ponti scale) total amount of sugars and phenolic compounds increased as compared to control leaves.
Eksperyment został przeprowadzony dwukrotnie: w 1999 i w 2000 roku. Użyto dwóch odmian ogórka szklarniowego (Aramis i Corona) różniących się podatnością na przędziorki. Jako miarę szkodliwości przędziorków wzięto pod uwagę: wpływ żerowania przędziorka chmielowca i przędziorka szklarniowca na owocowanie oraz na zawartość wybranych substancji organicznych. Prześledzono także rozwój odseparowanych przestrzennie populacji obu badanych gatunków przędziorków z uwzględnieniem wpływu wybranych czynników abiotycznych (temperatura i usłonecznienie). Zauważono, że przyrost zagęszczenia populacji przędziorka szklarniowca był intensywniejszy podczas sezonu o wyższej temperaturze i usłonecznieniu. W przypadku przędziorka chmielowca nie zauważono korelacji pomiędzy rozwojem populacji a zmieniającymi się warunkami abiotycznymi. Przyrost masy owoców był ściśle związany z tempem rozwoju szkodnika. Zauważono, że żerowanie relatywnie małych populacji przędziorka szklarniowca (do 5-7 stadiów ruchomych na liść) stymulowało przyrost masy owoców na odmianach Aramis i Corona. Żerowanie przędziorka chmielowca i przędziorka szklarniowca wpłynęło na dystrybucję substancji organicznych produkowanych przez badane rośliny. W dość silnie porażonych liściach (2-3 w skali De Pontiego) zwiększyła się zawartość cukrów ogólnych i fenoli.
Źródło:: Journal of Plant Protection Research; 2002, 42, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Repair of Structural Steel Surface Groove by Using Flame Welding Method by Spraying Pure Iron Powder
Autorzy:: Keyhany, P.
Vahdat, S. E.
Powiązania:: https://bibliotekanauki.pl/articles/381026.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: structural steel
repair
welding
tensile strength
mechanical properties
oxyacetylene
reducing flame
konstrukcje stalowe
naprawa
spawanie
wytrzymałość na rozciąganie
własności mechaniczne
Opis:: To improve mechanical properties and increasing useful life of metal pieces, different methods of welding are used for repairing surface crack of metal pieces. In this research, performance of flame welding method by spraying pure iron powder evaluated for repairing surface grooves of structural steel. First, four specimens including one control specimen and other three specimens grooved specimens in depth of 1mm and in length of 12.5mm and groove width in the sizes of 0.5, 0.75 and 1mm.were prepared then, powder melted using oxyacetylene reducing flame and spraying iron powder in the flame path and attached to the inner surface of the groove and finally, the specimen repaired. Results showed that after repairing surface groove, tensile strength of the repaired specimens were reached to the tensile strength of control specimen with the margin of 2.5%.
Źródło:: Archives of Foundry Engineering; 2016, 16, 3; 167-171
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Influence of electron donors and copper concentration on geochemical and mineralogical processes under conditions of biological sulphate reduction
Autorzy:: Wolicka, D.
Borkowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/139371.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: anaerobic conditions
biogenic minerals
copper
geochemical processes
sulphate-reducing bacteria (SRB)
warunki beztlenowe
biogenne minerały
miedź
procesy geochemiczne
bakterie redukujące siarczany
Opis:: Sulphidogenous microorganism communities were isolated from soil polluted by crude oil. The study was focused on determining the influence of 1) copper (II) concentration on the activity of selected microorganism communities and 2) the applied electron donor on the course and evolution of mineral-forming processes under conditions favouring growth of sulphate-reducing bacteria (SRB). The influence of copper concentration on the activity of selected microorganism communities and the type of mineral phases formed was determined during experiments in which copper (II) chloride at concentrations of 0.1, 0.2, 0.5 and 0.7 g/L was added to SRB cultures. The experiments were performed in two variants: with ethanol (4 g/L) or lactate (4 g/L) as the sole carbon source. In order to determine the taxonomic composition of the selected microorganism communities, the 16S rRNA method was used. Results of this analysis confirmed the presence of Desulfovibrio, Desulfohalobium, Desulfotalea, Thermotoga, Solibacter, Gramella, Anaeromyxobacter and Myxococcus sp. in the stationary cultures. The post-culture sediments contained covelline (CuS) and digenite (Cu₉S₅). Based on the results, it can be stated that the type of carbon source applied during incubation plays a crucial role in determining the mineral composition of the post-culture sediments. Thus, regardless of the amount of copper ion introduced to a culture with lactate as the sole carbon source, no copper sulphide was observed in the post-culture sediments. Cultures with ethanol as the sole carbon source, on the other hand, yielded covelline or digenite in all post-culture sediments.
Źródło:: Acta Geologica Polonica; 2014, 64, 1; 129-137
0001-5709
Pojawia się w:: Acta Geologica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "reducing" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język