Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Oprea A."'
Autor:
Stefan Oprea, Violeta Otilia Potolinca
Publikováno v:
Soft Materials. 21:149-160
Autor:
Simona Somacescu, Silviu Preda, Adelina Ianculescu, Dana Gingasu, Gabriela Marinescu, Daniela C. Culita, Vasile-Adrian Surdu, Ovidiu Oprea, Ioana Mindru, Bogdan Stefan Vasile
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:11220-11231
This paper introduces for the first time the preparation of cobalt aluminate (CoAl2O4) nanoparticles through a solution combustion method using a Mentha piperita leaves extract. The active constituents present in the mentha leaves extract act as both
Publikováno v:
Journal of Applied Mathematics and Physics. :1911-1925
The electrical properties of magnetic sensing devices fabricated from anisotropic materials are not easily extracted. Here we present a method for determining the resistance matrix for an anisotropic device with multiple electrical contacts placed in
Autor:
Constantin-Daniel Negut, Vasile-Adrian Surdu, Silviu Preda, Luminita Patron, Ioana Mindru, Ovidiu Oprea, Adelina Ianculescu, Daniela C. Culita, Dana Gingasu
Publikováno v:
Materials Science and Engineering: B. 246:42-48
The nanostructured cobalt aluminate (CoAl2O4) was obtained through an eco-friendly precursor method using aqueous extract of tamarind fruit. The use of plant extracts is a simple and effective approach for the preparation of CoAl2O4 nanoparticles. Th
Autor:
Adriana Nicoleta Frone, Adrian Catalin Puitel, Ioana Chiulan, Marius Ghiurea, Denis Mihaela Panaitescu, Madalina Oprea, Cristian Andi Nicolae, Dan Gavrilescu, Augusta Raluca Gabor
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:2387-2398
Agricultural waste is a valuable source of advanced materials. Cheap nanocellulose may be obtained from plum shells agricultural residues and further used instead of expensive nanocellulose as reinforcement in biopolymers. In this work, two types of
Autor:
Simona Brajnicov, Maria Dinescu, Marius Dumitru, Gheorghe Căta – Danil, Nicoleta Florea, Ioana Gheorghe, Ion Burducea, Paul Mereuță, T. Glodariu, N. Marginean, A. Mitu, Rareș Șuvăilă, Andreea Oprea
Publikováno v:
Vacuum. 161:162-167
This work is meant to respond the challenge of manufacturing osmium targets for nuclear astrophysics experiments using the activation method with alpha particles. In this context, PLD (Pulsed Laser Deposition) was used to prepare osmium targets witho
Autor:
Udo Weimar, S. Braun, Arne Kobald, Nicolae Bârsan, Alexandru Oprea, Peter Bonanati, Inci Boehme
Publikováno v:
Sensors and Actuators B: Chemical. 352:131027
Insufficient hand hygiene compliance of Health care workers is a widespread problem in medicine leading to several preventable infections each year. Hence, World Health Organization (WHO) presumes, that up to 1 in 10 patients acquires a Health care a
Autor:
Magdalena Mititelu, Denisa Udeanu, Mirela Nedelescu, Sorinel Neacsu, Anca Nicoara, Eliza Oprea, Manuela Ghica
Publikováno v:
Crystals; Volume 12; Issue 1; Pages: 87
Crystals, Vol 12, Iss 87, p 87 (2022)
Crystals, Vol 12, Iss 87, p 87 (2022)
Honey is a natural product recognized and appreciated for its nutritional value and therapeutic potential. However, the quality of bee honey is essential because various contaminants can seriously affect consumers’ health. In the experimental part
Autor:
Luiza Mădălina Grădinaru, Mihaela Silion, Ionel Marcel Popa, Doina Simona Matiut, Gabriela Lisa, Irina Paula Merlusca, Stefan Oprea
Publikováno v:
Polymer Bulletin
The aim of our study was obtaining chitosan–poly(vinyl alcohol)–neomycin sulfate films (Cs–PVA–Ne) by using solvent casting technique and the characterization of the products. The films were analyzed by Fourier transform infrared spectroscopy
Autor:
Claudia Maria Simonescu, Aurelia Cristina Nechifor, Anca Razvan, Cristian Onose, Ovidiu Oprea, Daniela F. Enache, Eugenia Vasile, Rodica-Elena Pătescu, Florina Dumitru, Alina Nicolescu
Publikováno v:
Journal of Solid State Chemistry. 253:318-328
Fe 3 O 4 , Fe 3 O 4 @SiO 2 , and Fe 3 O 4 @SiO 2 @ICPTES-cysteine MNPs have been prepared by the deposition of silica onto magnetite nanoparticles via controlled hydrolysis of TEOS. The new formed silica surface has been functionalized by grafting 3-