Results 51 to 60 of about 79,065 (292)

Corrosion behaviour of sintered Ti–Ni–Cu–Nb in 0.9% NaCl environment

Journal of Materials Research and Technology, 2015
The uniform and localized corrosion behaviour of sintered Ti–Ni containing niobium and copper additions were studied using potentiodynamic and cyclic polarization measurements in 0.9% sodium chloride.
Moipone Linda Lethabane, Peter A. Olubambi, Hilda K. Chikwanda   +2 more
doaj   +1 more source

The effect of niobium addition on the microstructure and properties of cast iron used in cylinder head

Journal of Materials Research and Technology, 2020
Cylinder head is one of the most important parts of heated components in the engine, while cracking due to low strength and large residual stress at high temperature is the main failure mode of cylinder head.
Sining Pan, Fanzheng Zeng, Nanguang Su, Zhaokun Xian   +3 more
doaj   +1 more source

Electronic signature of the vacancy ordering in NbO (Nb3O3)

, 2017
We investigated the electronic structure of the vacancy-ordered 4d-transition metal monoxide NbO (Nb3O3) using angle-integrated soft- and hard-x-ray photoelectron spectroscopy as well as ultra-violet angle-resolved photoelectron spectroscopy.
Altendorf, S. G., Chen, C. T., Efimenko, A. K., Hoefer, K., Hollmann, N., Hsieh, H. H., Hu, Z., Kasinathan, D., Komarek, A. C., Liao, Y. F., Lin, H. -J., Nugroho, A. A., Rata, A. D., Takegami, D., Tjeng, L. H., Tsuei, K. -D., Weinen, J., Wolff, K. K.   +17 more
core   +1 more source

Effect of high temperature heat treatments on the quality factor of a large-grain superconducting radio-frequency niobium cavity [PDF]

, 2013
Large-grain Nb has become a viable alternative to fine-grain Nb for the fabrication of superconducting radio-frequency cavities. In this contribution we report the results from a heat treatment study of a large-grain 1.5 GHz single-cell cavity made of ...
Ciovati, G., Dhakal, P., Gray, K. E., Groll, N., Maheshwari, P., McRae, D. M., Myneni, G. R., Pike, R., Proslier, T., Stevie, F., Walsh, R. P., Yang, Q., Zasadzinzki, J.   +12 more
core   +4 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Formation of niobium oxides by electrolysis from acidic aqueous solutions on glassy carbon

Macedonian Journal of Chemistry and Chemical Engineering, 2019
In this study niobium oxide films were formed without peroxo-precursors from three different mixed acidic aqueous solutions on glassy carbon. Linear sweep voltammetry and potential step were techniques used for electrochemical experiments.
Nataša M Vukićević, Vesna S Cvetković, Ljiljana S Jovanović, Miroslav M Pavlović, Jovan N Jovićević   +4 more
doaj   +1 more source

Surface and electrochemical corrosion analysis of niobium oxide film formed in various wet media

Applied Surface Science Advances, 2021
Niobium metal has a wide range of applications in medical devices, nuclear applications, and solar cells. Therefore, niobium corrosion behavior and oxide film formation mechanisms are of great interest.
V.I. Chukwuike, K. Rajalakshmi, R.C. Barik   +2 more
doaj   +1 more source

Dicyclopentadienyl-niobium(iii) and -niobium(iv) complexes [PDF]

Journal of Organometallic Chemistry, 1982
We greatly appreciate finantial support from Comision Asesora de Investigacion Cientifica y Tecnica (Spain).
A. Antiñolo, M. Fajardo, A. Otero, P. Royo   +3 more
openaire   +1 more source

A Comprehensive Overview of the Clinical, Electrophysiological, and Neuroimaging Features of BPAN: Insights From a New Case Series

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Neurodegeneration with brain iron accumulation (NBIA) comprises a genetically and clinically heterogeneous group of rare neurological disorders characterized particularly by iron accumulation in the basal ganglia. To date, 15 genes have been associated with NBIA.
Seda Susgun, Ozgu Kizek, Sibel Aylin Ugur Iseri, Ibrahim Kamaci, Ayse Deniz Elmali, Pinar Iscen, Berfin Gulkaya Guzel, Gul Yalcin Cakmakli, Bulent Elibol, Berril Donmez, Raif Cakmur, Pinar Topaloglu, Turkish NBIA Study Group, Abdullah Acar, Ahmet Acarer, Arzu Karabay, Asuman Ali, Ayla Barlas, Aysegul Gunduz, Banu Ozen Barut, Baris Baslo, Bilge Kocer, Bilgehan Mus, Birsen Karaman, Burcu Gokce Cokal, Cem Ismail Kucukali, Cenk Akbostanci, Ceyhun Sayman, Cagla Turan, Dilek Ince Gunal, Ebru Bilge Dirik, Ebru Erzurumluoglu, Elif Kocasoy Orhan, Enes Demiryurek, Emrah Yucesan, Ercan Kose, Erdem Tuzun, Esen Saka Topcuoglu, Esra Okuyucu, Fatma Betul Ozdilek, Feriha Ozer, Gencer Genc, Gozde Unal, Gulay Kenangil, Gullu Tarhan, Gunes Kiziltan, Halil Onder, Hamit Genc, Hasmet Hanagasi, Hatice Yuksel, Hulya Apaydin, Koray Kirimtay, Mehmet Guney Senol, Melisa Kilic, Meltem Demirkiran, Mert Karaca, Miray Erdem, Muhammet Bilgehan Mus, Murat Gultekin, Nalan Capan, Nazan Karagoz Sakalli, Nazli Basak, Nihan Hande Akcakaya, Ozan Ezer, Ozge Uygun, Ozge Yilmaz Kuspeci, Ozgur Oztop Cakmak, Pervin Iseri, Petek Ballar Kirmizibayrak, Pinar Elkoca, Recep Alp, Remzi Yigiter, Rezzak Yilmaz, Sadika Ozdemir, Selda Keskin, Selen Ilhan Alp, Selen Soylu, Serdar Ceylaner, Serhat Ozkan, Sevda Erer Ozbek, Sevgin Gundogan, Sevil Yasufli, Sezin Alpaydin Baslo, Sibel Ertan, Sultan Cagirici, Seyma Aykac, Vuslat Yilmaz, Yaprak Secil, Yasar Kutukcu, Yeliz Ciftci, Yesim Sucullu Karadag, Yildiz Değirmenci, Zeliha Matur, Nerses Bebek, Murat Emre, Zuhal Yapici   +95 more
wiley   +1 more source

Change of surface critical current in the surface superconductivity and mixed states of superconducting Niobium

, 2016
A systematic study of irreversible magnetization was performed in bulk Niobium after different surface treatments. Starting with smooth surfaces and abrading them, a strong increase of the critical current is observed up an apparent limiting value.
Aburas, Muhamad, Bellido, Natalia, Pautrat, Alain   +2 more
core   +3 more sources