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Wyszukujesz frazę "infiltration water" wg kryterium: Temat


Tytuł:
Concentration of soil CO2 as an indicator of the decalcification rate after liming treatment
Autorzy:
Chmiel, S.
Halas, S.
Glowacki, S.
Sposob, J.
Maciejewska, E.
Trembaczowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/26239.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
carbon dioxide
carbon dioxide concentration
soil
decalcification
liming treatment
water infiltration
leaching
Źródło:
International Agrophysics; 2016, 30, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Runoff from soils on marls under semi-arid Mediterranean conditions
Autorzy:
Blum, W.E.H.
Gomer, D.
Powiązania:
https://bibliotekanauki.pl/articles/25075.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
water infiltration
run-off
sedimentation
soil degradation
soil
marl
Mediterranean climate
infiltration
rainfall
modelling
marly soil
rain simulator
Źródło:
International Agrophysics; 1996, 10, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
TDR technique for estimating the intensity of effective non rainfall
Autorzy:
Janik, G
Skierucha, W.
Blas, M.
Sobik, M.
Albert, M.
Dubicki, M.
Zawada, A.
Powiązania:
https://bibliotekanauki.pl/articles/26139.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
time domain reflectometry technique
time-domain reflectometer zob.TDR technique
intensity
non-rainfall water flux
water infiltration
soil
Opis:
The objective of this paper is to present a method for determining diurnal distribution of the intensity of effective non rainfall water flux. It was found that the application of TDR technique for the determination of diurnal dynamics of effective non rainfall water flux requires temperature correction of sensed volumetric moisture contents. Without temperature correction the error of estimated non rainfall water flux can be as much as 26%. In addition, the effect of temperature changes on the soil surface was determined in 0.5, 1, 2, 3, 4, and 5 hours periods. It was found that the intensity of effective non rainfall water flux was determined to the greatest extent by the rate of temperature drop during the period of 3 h preceding the non rainfall water flux determination. The agreement of non rainfall water flux calculated with the method proposed and that obtained by the collector was better for dew than for hoarfrost periods.
Źródło:
International Agrophysics; 2014, 28, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating parameters of empirical infiltration models from the global dataset using machine learning
Autorzy:
Kim, S.
Karahan, G.
Sharma, M.
Pachepsky, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2083049.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
infiltration modelling
random forest
Soil Water
Infiltration Global database
Opis:
It is beneficial to develop pedotransfer relationships to estimate infiltration equation coefficients in site-specific conditions from readily available data. No systematic studies have been published concerning the relationships between the accuracy of the infiltration equation and the accuracy of the predicted coefficients in this equation. The objective of this work was to test the hypothesis that, for the same infiltration data, the accuracy of pedotransfer predictions for coefficients in an infiltration equation is greater for the infiltration equation that performs better. The hypothesis was tested using the commonly employed Horton and Mezencev (modified Kostiakov) infiltration equations with data from the Soil Water Infiltration Global database. The random forest machine learning algorithm was used to develop the pedotransfer model. The Horton and the Mezencev models performed better with 928 and 758 datasets, respectively. The accuracy of the estimates of the infiltration equation coefficients did not differ substantially between the estimates obtained from all data and from the data where the infiltration equation had lower root-mean-squared error values. The root-mean-squared error values of the pedotransfer estimates decreased by 2 to 25% when only datasets with the same infiltration measurement method were considered. The development of predictive pedotransfer equations with the data obtained from the same infiltration measurement method is recommended.
Źródło:
International Agrophysics; 2021, 35, 1; 73-81
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural groundwaters in Poland - occurrence, properties and chemical types
Autorzy:
Ziemska, J.
Mazanska, M.
Szynal, T.
Solecka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2087325.pdf
Data publikacji:
2020
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
infiltration waters
thermal waters
electrical conductivity of water
humic waters
chemical types of water
Opis:
Chemical composition, organoleptic and physicochemical properties of natural groundwaters are varied and dependent on their geological environment. Determining the basic organoleptic properties – such as colour, taste, odour – as well as physical properties – such as electrical conductivity or redox potential – allow us to assess the stability of water chemical composition. Based on their origin, groundwaters can be divided into infiltration, as well as condensation, juvenile, metamorphic and relic groundwaters, which are currently of lesser value. Groundwaters sourced in Poland belong to various chemical types and play an important role in balneotherapy and the bottling industry. Of particular importance are thermal, bicarbonate, chloride or sulphate type waters. There is also a growing interest in humic waters found in the Wielkopolska region.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2020, 71, 4; 363-370
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recharging infiltration of precipitation water through the light soil, in the absence of surface runoff
Infiltracja efektywna wód opadowych przez glebę lekką w warunkach braku spływu powierzchniowego
Autorzy:
Czyżyk, F.
Świerkot, Z.
Powiązania:
https://bibliotekanauki.pl/articles/292302.pdf
Data publikacji:
2017
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
infiltration
light soil
precipitation
water resources
gleba lekka
infiltracja
opady atmosferyczne
Opis:
The article presents the value of recharging infiltration of precipitation through the light soil and its distribution over time, based on five-year of lysimetric research. The effect of organic and mineral fertilization on the infiltration was studied. In lysimeters does not occur the phenomenon of surface runoff, and thus, by analogy, the results of the research can be applied to agriculturally used lowland areas with sandy soils. The results showed that the infiltration is very changeable in time. On its value, in addition to precipitation, the greatest influence has evapotranspiration. The largest infiltration occurs in March after the spring thaws (IE = 70–81% monthly precipitation) and the smallest in August (IE = 1.2–15.0% precipitation, depending on the type of fertilizer used and the level of fertilization). The soil fertilization, especially by using organic fertilizer (compost), is a factor, which has significantly influence on reduction of the recharging infiltration. The soil fertilization with compost reduced the infiltration of 7.4–9.0%, and with mineral fertilization of 5.4–7.0% of annual precipitation totals, compared with the infiltration through the soil not fertilized. The average annual index of infiltration was 21.8–25.3% of annual precipitation totals in variant of soil fertilized and 30.7% in case of the soil not fertilized.
W pracy przedstawiono wielkość infiltracji efektywnej (IE) opadów atmosferycznych przez glebę lekką oraz jej rozkład w czasie na podstawie pięcioletnich badań lizymetrycznych. Badano też wpływ nawożenia organicznego i mineralnego na wielkość infiltracji. W warunkach lizymetrów nie występuje zjawisko spływu powierzchniowego, a więc przez analogię wyniki badań można odnieść do użytkowanych rolniczo terenów równinnych z glebami piaszczystymi. Wyniki badań świadczą, że wielkość infiltracji jest bardzo zmienna w czasie. Oprócz opadów atmosferycznych, w największym stopniu wpływa na nią ewapotranspiracja. Największa infiltracja występuje w marcu po roztopach wiosennych (IE = 70–81% opadu miesięcznego), a najmniejsza w sierpniu (IE = 1,2–15% opadu, w zależności od rodzaju stosowanych nawozów i poziomu nawożenia). Nawożenie gleby, zwłaszcza nawozem organicznym (kompostem) jest czynnikiem mającym znaczący wpływ na zmniejszenie infiltracji efektywnej. Nawożenie gleby kompostem zmniejszyło infiltracje w porównaniu z notowaną przez glebę nienawożoną o 7,4–9,0%, a nawozami mineralnymi o 5,4–7,0% rocznej sumy opadów. Średni roczny wskaźnik infiltracji wyniósł 21,8–25,3% sumy opadów w wariancie z glebą nawożoną i 30,7% w wariancie kontrolnym (gleba nienawożona).
Źródło:
Journal of Water and Land Development; 2017, 32; 25-30
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Application Conditions of Infiltration Basins for Regulation of Urban Rainwater Drainage
Autorzy:
Tkachuk, Olexander
Yaruta, Yana
Shevchuk, Olha
Powiązania:
https://bibliotekanauki.pl/articles/2027819.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water drainage
infiltration basin
surface drainage
urban area
surface runoff quality
Opis:
Regulation of surface runoff in urban areas with temporary delay by infiltration basins of rainwater in the places of their precipitation and with gradual drainage through the existing reservoirs of small diameters is the most appropriate under the conditions of intensive building development, wear and imperfection of surface drainage systems, especially combined sewerage. Evaluation of application conditions and basic parameters of infiltration basins in surface drainage regulation was carried out on the basis of own experimental studies of infiltration basin fragment with upper typical vegetation layer, numerical computer modeling of surface runoff formation in urban areas, its regulation using infiltration basins and analysis of previous studies. Its water absorption, filtration and clearing indicators were defined on the basis of experimental studies. The self-regenerative restoring function of a vegetative layer, working conditions under the flooded and not flooded conditions were established and defined. According to the amount of suspended solids, BOD, oxidation, pH and dissolved oxygen, the quality of rain runoff when filtering water through the upper vegetation layers of infiltration basins decreases to the normative values.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 191-195
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Infiltration into layered soil covered with a depositional seal: a Green-Ampt approach
Autorzy:
Pachepsky, Y.A.
Timlin, D.
Powiązania:
https://bibliotekanauki.pl/articles/25130.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
hydraulic conductivity
soil profile
Green-Ampt method
soil
infiltration
water transport
Źródło:
International Agrophysics; 1996, 10, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time of concentration based infiltration under different soil density, water content, and slope during a steady rainfall
Czas infiltracji w warunkach różnej gęstości gleby, zawartości wody i nachylenia terenu podczas stałego opadu
Autorzy:
Harisuseno, Donny
Khaeruddin, Dian Noorvy
Haribowo, Riyanto
Powiązania:
https://bibliotekanauki.pl/articles/293092.pdf
Data publikacji:
2019
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
infiltration
runoff
slope
time of concentration
water content
czas koncentracji
infiltracja
nachylenie
spływ
zawartość wody
Opis:
Time of concentration, Tc, is defined as time elapsed from the beginning of rainfall infiltrated into soil layer until it reaches a constant infiltration rate (fc) which is indicated an equilibrium subsurface flow rate. In hydrological view, time of concentration plays a significant role in elaboration of transformation of rainfall into runoff in a watershed. The aims of this research are to define influence of soil density and soil water content in determining time of concentration using infiltration concept based on water balance theory, and to find out the effect of land slope this time. Watershed laboratory experiment using rainfall simulator was employed to examine time of concentration associated with infiltration process under different slope, soil density and soil water content based on water balance concept. The steady rainfall intensity was simulated using sprinklers which produced 2 dm3∙min–1. Rainfall, runoff and infiltration analysis were carried out at laboratory experiment on soil media with varied of soil density (d) and soil water content (w), where variation of land slopes (s) were designed in three land slopes 2, 3 and 4%. The results show that relationship between soil density and land slope to time of concentration showed a quadratic positive relationship where the higher the soil density address to the longer time of concentration. Moreover, time of concentration had an inverse relationship with soil water content and land slope that means time of concentration decreased when the soil water content increased.
Czas koncentracji Tc definiuje się jako czas, który upływa od początku opadu infiltrującego glebę do osiągnięcia stałej prędkości infiltracji (fc), co oznacza zrównoważone tempo przepływu podpowierzchniowego. W hydrologii czas koncentracji odgrywa znaczącą rolę w ocenie transformacji opadu w odpływ w zlewni. Celem badań było określenie wpływu gęstości gleby i zawartości wody w glebie na czas koncentracji z wykorzystaniem koncepcji infiltracji bazującej na teorii bilansu wodnego oraz określenie wpływu nachylenia terenu na ten czas. Przeprowadzono laboratoryjny eksperyment z użyciem symulatora opadu w celu zbadania czasu koncentracji związanego z procesem infiltracji w warunkach różnego nachylenia gruntu, gęstości gleby i zawartości wody w glebie w oparciu o koncepcję bilansu wodnego. Stałą intensywność opadu symulowano używając zraszaczy o wydajności 2 dm3∙min–1. Analizę opadu, odpływu i infiltracji prowadzono w eksperymencie laboratoryjnym na glebach o różnej gęstości (d) i zawartości wody (w) w warunkach nachylenia gruntu (s) równego 2, 3 i 4%. Wyniki wskazują, że zależność między gęstością gleby i nachyleniem a czasem koncentracji wyraża się dodatnim równaniem kwadratowym, gdzie większej gęstości gleby odpowiada dłuższy czas koncentracji. Ponadto czas koncentracji wykazywał odwrotną zależność od zawartości wody w glebie i od nachylenia, co oznacza, że czas koncentracji maleje wraz ze zwiększeniem zawartości wody w glebie.
Źródło:
Journal of Water and Land Development; 2019, 41; 61-68
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of water regimes on sorptivity and organic matter humic components of soil
Autorzy:
Raut, S.
Sahoo, N.
Chakraborty, H.
Powiązania:
https://bibliotekanauki.pl/articles/26353.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
water regime
sorptivity
organic matter
humic acid
soil
fulvic acid
infiltration
soil property
physicochemical property
Opis:
The aim of the study was to find the effect of water regimes on soil sorptivity and humic components of organic matter. Physicochemical parameters were also determined. Steady state cumulative infiltration was the highest (60-100 mm) in non-irrigated upland soil and the lowest (8-10 mm) in waterlogged soil. The highest sorptivity of 4.0-4.5mmmin-1/2 was found in nonirrigated upland soil and the lowest in seasonally waterlogged soil (1.0-1.5 mm min-1/2). Organic carbon content of all soils was low (<1%), EC values were also low (< 4 dS m-1). Saturated moisture was high in waterlogged soil. The non-irrigated upland soils had a higher fraction of fulvic acid (0.15-0.2%), due to which they were more capable of infiltration, whereas waterlogged soils had a greater fraction of insoluble humic acid (0.29-0.35%) and exhibited less cumulative infiltration. Sorptivity decreased as the clay content, pH, EC, porosity and humic acid content of the soil increased.
Źródło:
International Agrophysics; 2012, 26, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water table as a source for irrigation in the Nile Delta soils
Autorzy:
Amer, A.M.
Powiązania:
https://bibliotekanauki.pl/articles/2083572.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Infiltration functions
water table
moistening of the root zone
steady sorptivity
hydraulic conductivity
capillary rise
Opis:
The purpose of this study is to predict the contribution of the water table in moistening the root zone using theoretical and empirical equations containing the parameters of evapotranspiration, crop factor, and capillary rise in relation to the hydrophysical properties of soil. Five alluvial (clay) soil profiles located at middle Nile Delta were investigated for the application of the assumed equations. Four areas of soils were cultivated with wheat and clover in the winter and maize in the summer, and citrus trees in 2014/2015 growing season. Soil samples from the investigated areas were subjected to chemical and physical analyses. Water table depths were determined using field piezometers in the same places where the soil samples were collected. The other hydro-physical parameters were estimated. It was found that the water table contributed 20-40% of the irrigation water applied to the root zone in winter and 20% or less during the summer in the studied soils areas. An equation was derived to estimate the sorptivity (S) under dry conditions and at steady state infiltration. It was observed that S is decreased from unsaturated state to steady-state infiltration by 23.1 to 45.7% in cultivated soils and to 55.2% in uncultivated soil. Infiltration functions were estimated. It was suggested that the sorptivity at the steady infiltration rate (steady sorptivity, Sw) may be used to predict the hydraulic conductivity and the basic infiltration rate Ib. The calculated values of Ib by Sw corresponded to those obtained by infiltration experiment. This confirmed the significance of steady Sw as a new functional infiltration parameter. Also, data showed that the values of K(θ) calculated by the proposed equations were in the common ranges for such soils. The equations used (models) related K(θ) to soil pore radius (r) which were in turn based on soil hydraulic data including water retention h(θ), field basic infiltration rate, water sorptivity (S) and the distribution density function f(r) of soil pore size. The steady Sw parameter was used in the prediction of the hydraulic conductivity K(θ) and the basic (steady) infiltration rate Ib. It was concluded that in winter the water table contributed 20-40% of irrigation water applied to the root zone and less than 20% during the summer in the studied soils areas. These values should be considered in calculating the crop water requirements.
Źródło:
Acta Agrophysica; 2019, 26, 1; 79-92
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency of heavy metals removal during roof runoff infiltration through vegetated soil
Autorzy:
Sakson, G.
Powiązania:
https://bibliotekanauki.pl/articles/208054.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
water treatment
cooper
groundwater
heavy metals
infiltration
soil
uzdatnianie wody
miedź
wody gruntowe
metale ciężkie
infiltracja
gleba
Opis:
Stormwater discharged from urban areas can contain significant amounts of heavy metals, especially zinc and copper. Roof runoff is very often directed into the soil and may pose a risk for groundwater quality. Lysimeter research has shown that zinc and copper contained in stormwater may be effectively removed by passing through vegetated soil. The average removal efficiency was greater than 90% and did not depend on the metal concentration in the influent, and the concentrations in the effluent met the limits for drinking water. Infiltration may be a reliable treatment method for roof runoff and may make stormwater safe for groundwater recharge.
Źródło:
Environment Protection Engineering; 2017, 43, 3; 143-154
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbial communities and relationship with biofilm spatial distributions in subsurface wastewater infiltration systems
Autorzy:
Zhang, L.
Yang, J.
Powiązania:
https://bibliotekanauki.pl/articles/207883.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
water treatment
wastewater infiltration system
DGGE
volatile suspended solids
oczyszczanie ścieków oczyszczanie wody
systemy infiltracji ścieków
lotne zawiesiny
Opis:
A pilot-scale subsurface wastewater infiltration system (SWIS) was designed for the treatment of polluted river water. The components of microbial communities have been identified and characterized and their dependences on some indicators of biofilm formation in the SWIS have been determined. The average efficiencies of COD, TN and removal were 43.3%, 28.8% and 79.6%, respectively. According to the denaturing gradient gel electrophoresis (DGGE) profile, high intensity and uniform bands were generated, indicating an abundant microbial community in each layer of the SWIS. Furthermore, the Shannon index analysis showed high correlation to the spatial distribution of microbial communities as well as the quantity of biofilm in each sample, which were characterized by measuring volatile suspended solids (VSS), phospholipids, proteins and polysaccharides. Sequencing of partial 16S rRNA gene fragments revealed that the composition of the total bacterial communities was dominated by Alphaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, Pseudomonas, Bacillus, Flavobacteriaceae, TM-7, and other uncultured bacteria. These bacteria may contribute to nutrient removal in SWIS. +4 NH –N
Źródło:
Environment Protection Engineering; 2016, 42, 3; 55-69
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Guelph permeameter measurements of the topsoil and upper subsoil hydraulic conductivity for characterising the structural state of arable lands
Autorzy:
Dolezal, F.
Kuraz, V.
Poruba, M.
Soukup, M.
Powiązania:
https://bibliotekanauki.pl/articles/24948.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
hydraulic conductivity
arable land
soil structure
soil water
moisture content
infiltration measurement
nutrient regime
structure dynamics
soil moisture
soil texture
Źródło:
International Agrophysics; 1997, 11, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Auxiliary gravity drain and infiltration wells supporting basic drainage system in the “Bełchatów” Lignite Mine
Autorzy:
Macuda, J.
Gasiński, J.
Grad, J.
Szewczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/299020.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Bełchatów Lignite Mine
Bełchatów lignite field
drainage
dewatering of opencast mine
mine gravity drain well
gravity infiltration well
dewatering wells
residual water
Opis:
The downhole parts of the “Bełchatów” Lignite Mine are dewatered through large diameter dewatering wells belonging to the primary drainage system. This system is supported by additional shallow wells performed in the overburden, in the forefield of extraction site or on the extraction site itself. They are used for limiting and removing residual water from extraction site, which corresponds to the height of excavator level. They are preceded by the analysis of dewatering of the mining benches based on the results of control drilling and observation of the water table in the existing piezometric wells. Shallow auxiliary wells are drilled with the “dry” rotary method to about 30 m of depth. Such wells considerably reduce the amount of water coming to the mine with rainwaters, and which were not captured by wells of the primary drainage system. This is mainly caused by such factors as complex geological build, disturbed system of strata, presence of synclinal structures and closed lenses. The technique and technology of drilling supporting shallow wells with the “dry” rotary method and their effect on dewatering of active extraction sites are discussed in this paper.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 245-253
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł

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