Results 21 to 30 of about 3,405,613 (275)
Annali di Matematica Pura ed Applicata (1923 -), 2022 AbstractWe improve results of Baouendi, Rothschild and Treves and of Hill and Nacinovich by finding a much weaker sufficient condition for a CR manifold of type (n, k) to admit a local CR embedding into a CR manifold of type $$(n+\ell ,k-\ell )$$ ( n + ℓ
Cowling, MG +3 more
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Determination of Valences of As, Cr, Sb and Se in Soil Using HPLC-HG-AFS
Yankuang ceshi, 2021 BACKGROUND The environmental effects of heavy metal pollutants in soil are closely related to their inorganic valence. The determination of the valences of As, Cr, Sb and Se elements is of great significance, but due to the easy conversion between the ...
XUE Jia
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Bazı Peyzaj Bitkilerinde Krom Konsantrasyonunun Tür, Organ ve Trafik Yoğunluğuna Bağlı Değişimi
Turkish Journal of Agriculture: Food Science and Technology, 2021 Günümüzde insan ve çevre sağlığını tehdit eden en önemli problemlerin başında hava kirliliği gelmektedir. Hava kirliliğinin pek çok bileşeni bulunmakla birlikte, bunlar arasında ağır metaller ayrı bir öneme sahiptir.
Hakan Şevik
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International Journal of Mathematics, 2021 We say that a CR singular submanifold [Formula: see text] has a removable CR singularity if the CR structure at the CR points of [Formula: see text] extends through the singularity as an abstract CR structure on [Formula: see text]. We study such real-analytic submanifolds, in which case removability is equivalent to [Formula: see text] being the ...
Lebl, Jiří +2 more
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On the Lichnerowicz conjecture for CR manifolds with mixed signature [PDF]
, 2018 We construct examples of nondegenerate CR manifolds with Levi form of signature $(p,q)$, $2\leq p\leq q$, which are compact, not locally CR flat, and admit essential CR vector fields. We also construct an example of a noncompact nondegenerate CR manifold
Chern +15 more
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Mineral Utilization in Rams Fed Ration Supplemented with Different Levels of Chromium, Calcium, and Cation-Anion Balances [PDF]
, 2011 Chromium (Cr) is an essential mineral for ruminants. Its metabolism and interactions with other minerals has not been widely known. This experiment was designed to evaluate the utilization of minerals and growth of Garut ram fed ration supplemented with ...
Amir, F. (F) +5 more
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Inflexible CR submanifolds [PDF]
Mathematische Zeitschrift, 2016 to appear in Math ...
Brinkschulte, Judith, Denson Hill, C.
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, 2015 Segregation, precipitation, and phase separation in Fe-Cr systems is investigated. Monte Carlo simulations using semiempirical interatomic potential, first-principles total energy calculations, and experimental spectroscopy are used. In order to obtain a
Dahl, J. +12 more
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Chemical reduction of hexavalent chromium (VI) in soil slurry by nano zero valent iron [PDF]
, 2015 The increasing industrial development of recent decades has lead to the production of increasing quantities of waste containing heavy metals, elements often harmful to the environment, which in the past were not properly disposed of, thus inducing soil
DI PALMA, Luca +2 more
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A Simple, Accurate and Highly Secure Method to Encrypt-Decrypt Digital Images
JOIV: International Journal on Informatics Visualization, 2020 The digital image may be important and has a secret character, which requires not understanding it when looking at the naked eye or not understanding the contents. So seeking a method of digital image encryption-decryption is a very important task.
Jamil Azzeh, Ziad Alqadi, Qazem Jaber
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