Results 251 to 260 of about 26,906 (290)

Estimation of percent aluminum saturation from soil chemical data

Communications in Soil Science and Plant Analysis, 1984
Abstract Numerous studies since the early 1970's have shown that percent aluminum (Al) saturation of the soil ion exchange complex is a useful index for predicting the effects of Al toxicity on crop yield and root growth. However, direct measurements of percent Al saturation are unavailable for many acid soils, especially for those sampled prior to the
exaly   +2 more sources

Internal Magnetic Fields and the Saturation Magnetization of Iron—Aluminum Alloys

Journal of Applied Physics, 1963
Internal magnetic fields in several iron—aluminum alloys ranging in composition from 19 to 28 at. % aluminum have been measured in a Mössbauer absorption experiment. In the composition range 22% to 26% aluminum three distinct internal magnetic fields were observed. At 300°K the magnitudes of these fields are in the ratio 1.00:0.88:0.72.
E. A. Friedman, W. J. Nicholson
exaly   +2 more sources

Hydrogen Saturation of Aluminum Alloys during Atmospheric Corrosion

2022
Laptev Anatoly, Abramova Maria, Lonskaya Nataly, Davydov Dmitry, Averina Alena   +4 more
exaly   +2 more sources

Saturation of titanium alloys with aluminum and chromium

Metal Science and Heat Treatment, 1976
Yu. N. Presman, G. G. Panich
exaly   +2 more sources

Critical heat flux: Performance of R1234yf, R1234ze and R134a in an aluminum multi-minichannel heat sink at high saturation temperatures

International Journal of Thermal Sciences, 2016
In this paper, new saturated critical heat flux (CHF) values at medium-to-high saturation temperatures are presented for an aluminum multi-minichannel test section. Among the possible working fluids, R134a and the low GWP refrigerants R1234yf and R1234ze
R Mastrullo, A W Mauro, G P Vanoli
exaly   +2 more sources

Atrazine adsorption and desorption on functionalized montmorillonite: aluminum-pillared and lithium saturated

Journal of Environmental Science and Health, Part B, 2022
Atrazine is an herbicide used worldwide, and it is considered a severe environmental contaminant. The present study aims to evaluate the atrazine adsorption in aqueous media in montmorillonite samples which were either in natural state or functionalized through saturation with lithium and pillarization with aluminum by different methods ...
Regiane, Salata, Vander Freitas, Melo, Luis Fernando Amorim, Batista, Gilberto, Abate, Antônio Carlos, Azevedo   +4 more
openaire   +2 more sources

Freezing of water saturated in aluminum wool mats

Heat and Mass Transfer, 2007
This paper is concerned with the freezing of water saturated in aluminum wool mats (AWM) around a cooling pipe. Two arrangements of AWM around the pipe are considered, i.e. a disk-type and a roll-type. Freezing mass M(kg/m2) in the disk type for a porosity ɛ = 0.95, indicates to be two times larger compared with that without AWM (i.e.
M. Sugawara, T. Onodera, Y. Komatsu, M. Tago, H. Beer   +4 more
openaire   +1 more source

Successive saturation of carbon steels with aluminum and boron

Metal Science and Heat Treatment, 1982
1. Boronizing of aluminized steel is expedient in the case in which the aluminum content of the coating does not exceed the concentration in Fe3Al. Boronizing should be conducted at temperatures of 1000° and higher. 2. Alloying of FeB and Fe2B with aluminum reduces the microhardness and increases the ductility of the coating.
N. G. Kaidash, P. P. Chastokolenko, L. N. Chastokolenko   +2 more
openaire   +1 more source

Saturation studies of nuclear acoustic resonance in aluminum

Physical Review B, 1979
Nuclear acoustic resonance has been investigated in single-crystal aluminum over a broad range of acoustic power. Saturation of both absorption and dispersion signals was observed. The shape and width of the absorption signal were found to depend on the acoustic power level. The line was found to either narrow or broaden with increasing acoustic power,
D. K. Hsu, R. G. Leisure, G. R. Ashton
openaire   +1 more source

Effects of drying and wetting on extractable aluminum in strongly acid soils and in aluminum-saturated clays

Geoderma, 1973
Abstract A number of field-moist strongly acid soils, NaObr-treated soils, and Al-saturated clays were subjected to drying and wetting treatments in the laboratory. Oven drying of samples resulted in decreases in extractable Al and increases in extractable H from field-moist soils containing more than 12 mequiv./100 g exchange acidity and from Al ...
D.G. Westfall, C.D. Moodie, H.H. Cheng
openaire   +1 more source