Results 21 to 30 of about 496,001 (154)

Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Højerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl
Premović Pavle I.   +5 more
doaj   +1 more source

Electrochemical Corrosion Resistance of Ni and Co Bonded Near-Nano and Nanostructured Cemented Carbides

open access: yesMetals, 2020
The advantages of nanostructured cemented carbides are a uniform, homogenous microstructure and superior, high uniform mechanical properties, which makes them the best choice for wear-resistant applications.
Tamara Aleksandrov Fabijanić   +4 more
doaj   +1 more source

Binder-free Li-O2 battery cathodes using Ni- and PtRu-coated vertically aligned carbon nanofibers as electrocatalysts for enhanced stability

open access: yesNano Research Energy, 2023
The development of an ideal cathode for Li-O2 battery (LOB) has been a great challenge in achieving high discharge capacity, enhanced stability, and longevity.
Syed Shoaib Hassan Zaidi   +5 more
doaj   +1 more source

ON NI AND QUASI-NI RINGS

open access: yesKorean Journal of Mathematics, 2016
Summary: Let \(R\) be a ring. It is well-known that \(R\) is \(NI\) if and only if \(\sum_{i=0}^nRa_iR\) is a nil ideal of \(R\) whenever a polynomial \(\sum_{i=0}^na_ix^i\) is nilpotent, where \(x\) is an indeterminate over \(R\). We consider a condition which is similar to the preceding one: \( \sum_{i=0}^nRa_iR\) contains a nonzero nil ideal of \(R\)
Kim, Dong Hwa   +3 more
openaire   +3 more sources

Meeting report and review: Immunological assays and correlates of protection for next‐generation influenza vaccines

open access: yesInfluenza and Other Respiratory Viruses, Volume 14, Issue 2, Page 237-243, March 2020., 2020
Abstract Background This report summarizes the discussions and conclusions from the “Immunological Assays and Correlates of Protection for Next‐Generation Influenza Vaccines” meeting which took place in Siena, Italy, from March 31, 2019, to April 2, 2019.
Florian Krammer   +4 more
wiley   +1 more source

Smart Farming Becomes Even Smarter With Deep Learning—A Bibliographical Analysis

open access: yesIEEE Access, 2020
Smart farming is a new concept that makes agriculture more efficient and effective by using advanced information technologies. The latest advancements in connectivity, automation, and artificial intelligence enable farmers better to monitor all ...
Zeynep Unal
doaj   +1 more source

Influence of alloying Ti, Mo and W on the kinetic and strength characteristics of membrane alloys based on Nb and V

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
An analysis was carried out of influence of , Ti Mo and W on the nature of the amorphous nano- and crystalline structures on the strength and kinetic characteristics – diffusion D and permeability Φ of hydrogen in membrane alloys based on binary Nb - Ni ...
Valery A. Polukhin   +2 more
doaj   +1 more source

Pollution indices of heavy metals in agricultural soils irrigated with raw sewage (Meshginshahr, Ardabil) [PDF]

open access: yesمدل‌سازی و مدیریت آب و خاک, 2023
Introduction As a great reservoir of nutrients and pollutants, soil plays an important role in health and socio-ecological sustainability. Soil pollution increases as a result of the entry of heavy metals from operations such as agriculture, urbanization,
Ayda Abbasi-Kalo   +3 more
doaj   +1 more source

Investigate the electrical and thermoelectric properties of M@C60 where (M=Co, Ni): A DFT study [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
Density functional theory combined with nonequivalent greens function was carried out to study the M@C60 single-molecule junctions between two gold electrodes, where M=Co and Ni.
Anhar alfahdawi, Alaa Al-Jobory
doaj   +1 more source

Occurrence data of nickel in feed and animal exposure assessment

open access: yesEFSA Journal, Volume 17, Issue 6, June 2019., 2019
Abstract Nickel (Ni) is a silvery‐white, hard, ductile metal existing in oxidation states; in biological systems, Ni2+ is the prevalent form. All analytical results used to estimate animal dietary exposure were reported as Ni', without providing information on specific chemical species. Considering the data provided by Member states, among FoodEx level
European Food Safety Authority (EFSA)   +5 more
wiley   +1 more source

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