Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 5

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  threshold value
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

An algorithm for determination of threshold value in extruded products by the method of maximum increments: modification of Otsu method

100%
Ekielski A.
Annals of Warsaw University of Life Sciences - SGGW. Agriculture
|
2013
|
nr 62 Agric.Forest Eng.
An algorithm for determination of threshold value in extruded products by the method of maximum increments: modi􀂿 cation of Otsu method. There are presented the results of comparative analysis of threshold value determination in the extruded products with the use of developed new algorithm. The original and modi􀂿 ed Otsu algorithms were compared. In calculations of porosity indices of the extrudate cross section, the threshold values determined automatically with the use of investigated algorithms were compared with indications of an experts’ panel. The results of threshold value calculated with the use of the proposed algorithm were closer to values indicated by the expert panel, than that obtained with the use of comparative algorithms. However, the proposed method tends to overstate the threshold value; in some cases it can cause losing the pores of small lacunarity on the bit map calculated by this method.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Adopting adequate leaching requirement for practical response models of basil to salinity

100%
Babazadeh H., Tabrizi M. S., Darvishi H. H.
International Agrophysics
|
2016
|
tom 30
|
nr 3
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Exceedance probability of selected low characteristic flows in mountain catchments

84%
Weglarczyk S.
Infrastruktura i Ekologia Terenów Wiejskich
|
2014
|
nr IV/3
In Polish hydrology and water management the term characteristic flow exists denoting a specific value of flow at the given cross-section of a river calculated as the long-term minimum, mean, median or maximum calculated using the annual minimum, mean, median or maximum flow taken for each year from a series of (usually) daily flows. Some of these characteristic flows are used to define the low-flow (o drought) periods while the another criterion: a percentage flow Qp taken from the long-term flow duration curve is also widely used. In the paper the study on the frequency structure the empirical exceedance probability of a given characteristic flow made for some low and average characteristic flows (SNQ, WNQ, NSQ and SSQ) is presented. The results show that the exceedance probability of a given characteristic flow is variable, and the amount of this variability may be large, as is the case of WNQ and NSQ. So assigning a characteristic flow to a single FDC quantile value Qp (as can be find in the literature) cannot be justified. Correlation analysis made for the pairs (P. , characteristic flow), ( P., catchment area) and (P. , gauging station elevation) revealed some significant correlations. Only for SNQ is not correlated at all; correlation for other characteristic flows is statistically significant for at least one of the cases. The highest correlations (greater than 0.4 in absolute values) were found for the pairs ( P, gauging station elevation) for NSQ and, for SSQ, ( P, SSQ) and ( P, catchment area).
4

Transfer of magnesium in a food chain. Part six: magnesium excretion, apparent absorption rate, balance, normative requirement, recommendation, symptoms and threshold values for adult humans

84%
Anke M., Vormann J., Seifert M., Muller R., Jaritz M.
Journal of Elementology
|
2005
|
tom 10
|
nr 4 Suppl.1
11-12
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Co-occurrence of airborne allergenic pollen grains and fungal spores in Rzeszow, Poland (2000-2002)

84%
Kasprzyk I.
Acta Agrobotanica
|
2008
|
tom 61
|
nr 2
The co-occurrence of airborne allergenic pollen grains and fungal spores was estimated in Rzeszów in the years 2000- 2002. The volumetric method was used in this aerobiological study. Six taxa of pollen grains and fi ve types of fungal spores characterized by strong allergenicity and/or high concentrations in the air were analyzed. The time series of pollen grains and fungal spores were compared using PCA analysis. The periods of the greatest concentrations of tree pollen did not coincide with similar periods for herbaceous plants and fungal spores. From February to mid-March, Alnus pollen dominated in the air. The second period was characterized by Betula pollen. It occurred in April. Herbaceous pollen and fungal spores occurred in the air simultaneously (from mid May to the end of August), creating a risky situation for sensitized people. The periods of the highest concentrations of Epicoccum and Ganoderma fungal spores did not coincide with the same period for the examined plant taxa. In Rzeszów the probability of becoming exposed to very high concentrations of allergenic pollen and fungal spores at the same time was high, especially in July, when the highest concentrations of Poaceae, Alternaria and Cladosporium were noted. The hypersensitivity to only one plant or fungal allergen is rarely encountered. Under the present scenarios of global warming, pollen seasons of many taxa will be longer and sufferers will have year-long symptoms.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.