Results 11 to 20 of about 115,504 (117)

The Organic Matter of Chernozem

Бюллетень Почвенного института им. В.В. Докучаева, 2017
Theories and points of view of soil science classics, such as V. V. Dokuchaev, I. V. Turin and M. M. Kononva on chernozem organic matter are reviewed in this work.
B. M. Kogut
doaj   +2 more sources

Development of a rapid fractionation tool for natural organic matter [PDF]

, 2010
A rapid natural organic matter (NOM) fractionation tool was developed to enable NOM to be classified by hydrophobicity at the water treatment works and in the catchment.
Piper, Claire
core   +7 more sources

PHYSIOLOGICAL QUALITY OF PROCESSED, REPROCESSED, AND STORED SORGHUM SEEDS: IMPACT OF A DENSIMETRIC TABLE [PDF]

, 2023
Sorghum ( Sorghum bicolor L. Moench) is a crop of paramount importance for Brazil, used in human and animal food. Considering the reduced number of studies on the influence of using a densimetric table in seed processing and its respective reprocessing ...
Daniel E. C. de Oliveira (5020121), Erica de F. Cabral (16562749), Osvaldo Resende (5020118), Lílian M. Costa (5020124), Jonathas L. R. dos Santos (16562752)   +4 more
core   +3 more sources

Using a refracto-densimetric method for control of secon­dary oil-refining processes: Hydrotreating and hydrocracking

Учёные записки Казанского университета: Серия Естественные науки, 2019
The possibility of using flow refractometers and densimeters or refracto-densimetric analyzers to study the quality of diesel fuels obtained in the processes of hydrotreating and hydrocracking of raw materials was discussed.
V.F. Nikolaev, R.K. Nurgaliev, N.D. Zalaltdinova, I.O. Vyachkileva, O.O. Kolonenkova, R.B. Sultanova   +5 more
doaj   +1 more source

A review of the tectonic, volcanological and hazard history of Vulcano (Aeolian Islands, Italy)

Terra Nova, Volume 35, Issue 6, Page 471-487, December 2023., 2023
Abstract Vulcano is one of the seven volcanic islands composing the Aeolian Islands archipelago (Southern Italy), which also includes three other active volcanoes. The island was originally a stratovolcano like Stromboli; afterwards, its shape turned towards a complex structure composed of several volcanic landforms of different sizes.
Gianfilippo De Astis, Domenico M. Doronzo, Mauro A. Di Vito   +2 more
wiley   +1 more source

The response of high density turbidity currents and their deposits to an abrupt channel termination at a slope break: Implications for channel–lobe transition zones

Sedimentology, Volume 70, Issue 4, Page 1164-1194, June 2023., 2023
ABSTRACT The transition between the slope and basin floor is typically marked by a slope break, in some cases causing channels to terminate and turbidity currents to undergo a loss of confinement. It is thus essential to understand how these slope breaks and losses of confinement influence the hydrodynamic evolution of turbidity currents and impact ...
Jonathan Wilkin, Alan Cuthbertson, Sue Dawson, Dorrik Stow, Karl Stephen, Uisdean Nicholson, Nadia Penna   +6 more
wiley   +1 more source

Carbon isotope fractionation during aerobic biodegradation of trichloroethene by Burkholderia cepacia G4: a tool to map degradation mechanisms [PDF]

, 2002
The strain Burkholderia cepacia G4 aerobically mineralized trichloroethene (TCE) to CO2 over a time period of similar to20 h. Three biodegradation experiments were conducted with different bacterial optical densities at 540 nm (OD(540)s) in order to test
Schuth, Christoph, Downey, Angela, Larkin, Mike, Bill, Markus, Schuth, C., Bill, M., Markus Bill, Slater, G., Kalin, Robert M., Kalin, R.M., Barth, JAC, Angela Downey, Robert M. Kalin, Larkin, Michael, Slater, Greg F., Christoph Schüth, Larkin, M., Mike Larkin, Kalin, R., Johannes A. C. Barth, Greg Slater, Downey, A., Kalin, Bob, Slater, Greg, Barth, J.A.C., Barth, Johannes A. C.   +25 more
core   +1 more source

The Yih Instability in Layered Lava Flow May Initiate the Pāhoehoe to ‘a‘ā Lava Transition

Geophysical Research Letters, Volume 50, Issue 10, 28 May 2023., 2023
Abstract Most basaltic lavas begin flowing as pāhoehoe but sometimes transition into ‘a‘ā. Field observations and previous models have demonstrated that the rheology of smooth, liquid‐like pāhoehoe is distinct from rough, pasty ‘a‘ā, but the cause of this dramatic and rapidly occurring change in rheology has remained unclear.
Cansu Culha, Sam Spinner, Jenny Suckale
wiley   +1 more source

Recent advances in high-temperature fractionation of polyolefins

, 2022
S.77-140The synthesis and characterization of polyolefins continues to be one of the most important areas for academic and industrial research. One consequence of the development of new ""tailor-made"" polyolefins is the need for new and improved ...
Macko, Tibor, Malik, Muhammad Imran, Pasch, Harald   +2 more
core   +1 more source

Determinação dos estoques de carbono e nitrogênio nas frações físicas da matéria orgânica em solos antrópicos (Terra Preta de Índio) e não antrópicos da Amazônia Central. [PDF]

, 2022
The soil organic matter, as the Amazonian Dark Earths, have functional compartments with different characteristics concerning composition and dynamics and these fractions can be evaluated using physical fractionation, in which the fractions are separated
MADDOCK, J. E. L., SOARES, R., CAMPOS, D. V. B. de, MACHADO, P. L. O. de A., MADARI, B. E., Pedro Luíz de O. A. Machado, John E. L. Maddock, Ricardo Soares, Beata E. Madari, David V. B. Campos   +9 more
core   +1 more source