Results 31 to 40 of about 79,065 (292)

Transition Probabilities Of Astrophysical Interest In The Niobium Ions Nb+ And Nb2+ [PDF]

, 2010
Aims. We attempt to derive accurate transition probabilities for astrophysically interesting spectral lines of Nb II and Nb III and determine the niobium abundance in the Sun and metal-poor stars rich in neutron-capture elements. Methods.
Biemont, E., Engstrom, L., Fivet, V., Hartman, H., Lundberg, H., Nilsson, H., Palmeri, P., Quinet, P., Sneden, Christopher   +8 more
core   +1 more source

Properties of magnetron hydroxyapatite coatings deposited on oxidized substrates [PDF]

, 2016
Hydroxyapatite (HA) coating were formed on oxidized niobium surfaces by the highfrequency magnetron sputtering method using hydroxyapatite and tricalcium phosphate targets.
Kostuchenko, A. V., Lavrynenko, S. N., Mamalis, A. G., Starikov, V. V., Starikova, S. L.   +4 more
core   +1 more source

Extraction of Niobium from ore deposits in KPK, Pakistan

NUST Journal of Engineering Sciences, 2015
The extraction of Niobium through different extraction processes is reviewed in this paper. On the commercial scale the solvent extractants have been employed for the extraction of Niobium in the presence of hydrogen fluoride.
Muhammad Irfan, Muhammad Imran Ahmad, Muhammad Saleem Khan   +2 more
doaj   +1 more source

Purification of Niobium by Electron Beam Melting

High Temperature Materials and Processes, 2016
Pure niobium metal, produced by alumino-thermic reduction of niobium oxide, contains various impurities which need to be reduced to acceptable levels to obtain aerospace grade purity. In the present work, an attempt has been made to refine niobium metals
Sankar M., Mirji K.V., Prasad V.V. Satya, Baligidad R.G., Gokhale A.A.   +4 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Experiment on New Comprehensive Recovery of Micro-fine Particle Low-grade Refractory Tantalum Niobium Lithium Resources

Kuangchan zonghe liyong
The fine-grained low-grade tail mud of the Yichun tantalum niobium ore contains 0.17% Li2O，0.007 1% Ta2O5，0.007 8% Nb2O5, and whiteness is 24.20%. Mineralogical studies indicate that tantalum-niobium minerals and lithium mica particles in the tailings ...
Qiangqiang WANG, Zhenfei LI, Yuefu GUO, Xinchun SHEN, Jiquan LAI, Ting ZHANG   +5 more
doaj   +1 more source

Recovery of niobium and titanium from ilmenorutile by NaOH roasting-H2SO4 leaching process

Journal of Materials Research and Technology, 2021
Niobium has a wide range of application in various industries such as materials, alloy, and electronic industry. To improve the use of ilmenorutile in China's Bayan Obo deposit, a novel process of extracting niobium, titanium, and iron from ilmenorutile ...
Linquan Sun, Hongdong Yu, Fancheng Meng, Tao Qi, Lina Wang, Yihe Peng   +5 more
doaj   +1 more source

RRR Characteristics for SRF Cavities

, 2015
The first heavy ion accelerator is being constructed by the rare isotope science project (RISP) launched by the Institute of Basic Science (IBS) in South Korea.
Hyun, Myungook, Joung, Mijoung, Jung, Yoochul   +2 more
core   +1 more source

PICALM::MLLT10 translocated leukemia

FEBS Letters, EarlyView.
This comprehensive review of PICALM::MLLT10 translocated acute leukemia provides an in‐depth review of the structure and function of CALM, AF10, and the fusion oncoprotein (1). The multifaceted molecular mechanisms of oncogenesis, including nucleocytoplasmic shuttling (2), epigenetic modifications (3), and disruption of endocytosis (4), are then ...
John M. Cullen, Antonia C. Nakatsugawa, Natalie Barton, Henry Haines, Gary S. Stein, Janet L. Stein, Daniel S. Wechsler, Jessica L. Heath   +7 more
wiley   +1 more source

Characteristics of a production route for filamentary Nb3Sn superconductors based on a reaction between niobium and Nb6Sn5 [PDF]

, 1989
Monofilamentary Nb3Sn superconductors have been made by application of a reaction between Nb6Sn5 powder and niobium. The layer thickness of Nb3Sn shows a parabolic time dependence, implying diffusion-controlled layer growth.
Kolster, B.H., Neijmeijer, W.L.
core   +3 more sources