Oprea, Stefan: search on Z-Library

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1

Development and properties of advanced composites based on cork and nanometric silicon carbide-filled phenolic resin

Pelin, G, Pelin, C-E, Ştefan, A, Dincă, I, Andronescu, E, Oprea, O, Ficai, D, Truşcă, R

Journal:

Bulletin of Materials Science

Year:

2018

Language:

english

File:

PDF, 1.66 MB

english, 2018

2

Bioactivity-guided mapping and navigation of chemical space

Renner, Steffen, van Otterlo, Willem A L, Dominguez Seoane, Marta, Möcklinghoff, Sabine, Hofmann, Bettina, Wetzel, Stefan, Schuffenhauer, Ansgar, Ertl, Peter, Oprea, Tudor I, Steinhilber, Dieter

Journal:

Nature Chemical Biology

Year:

2009

Language:

english

File:

PDF, 673 KB

english, 2009

3

Determination of voltage stress in case of operation of a hybrid HVAC/HVDC transmission line

Woodford, Dennis, Barthold, Lionel, Oprea, Liliana, Ullrich, Stefan, Fuchs, Andreas

Journal:

Electric Power Systems Research

Year:

2016

Language:

english

File:

PDF, 1.08 MB

english, 2016

4

Effect of the long chain extender on the properties of linear and castor oil cross-linked PEG-based polyurethane elastomers

Journal:

Journal of Materials Science

Year:

2011

Language:

english

File:

PDF, 376 KB

english, 2011

5

Synthesis and properties of new crosslinked polyurethane elastomers based on isosorbide

Oprea, Stefan, Potolinca, Violeta-Otilia, Oprea, Veronica

Journal:

European Polymer Journal

Year:

2016

Language:

english

File:

PDF, 2.18 MB

english, 2016

6

Properties of crosslinked polyurethanes obtained by acrylic side-group polymerization and of their blends with various plant oils

Journal:

Journal of Applied Polymer Science

Year:

2013

Language:

english

File:

PDF, 1.12 MB

english, 2013

7

[IEEE 2015 Intl Aegean Conference on Electrical Machines & Power Electronics (ACEMP), 2015 Intl Conference on Optimization of Electrical & Electronic Equipment (OPTIM) & 2015 Intl Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION) - Side, Turkey (2015.9.2-2015.9.4)] 2015 Intl Aegean Conference on Electrical Machines & Power Electronics (ACEMP), 2015 Intl Conference on Optimization of Electrical & Electronic Equipment (OPTIM) & 2015 Intl Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION) - Comparative design analysis of ferrite-permanent-magnet micro-wind turbine generators

Chirca, Mihai, Breban, Stefan, Oprea, Claudiu, Radulescu, Mircea M.

Year:

2015

Language:

english

File:

PDF, 2.41 MB

english, 2015

8

Mechanical behaviour of crosslinked poly(ester-siloxane) urethanes

Aurelian Stanciu, Victor Bulacovschi, Mioara Lungu, Stelian Vlad, Sorin Balint, Stefan Oprea

Journal:

European Polymer Journal

Year:

1999

Language:

english

File:

PDF, 191 KB

english, 1999

9

The effect of chain extenders structure on properties of new polyurethane elastomers

Journal:

Polymer Bulletin

Year:

2010

Language:

english

File:

PDF, 291 KB

english, 2010

10

Interactive exploration of chemical space with Scaffold Hunter

Wetzel, Stefan, Klein, Karsten, Renner, Steffen, Rauh, Daniel, Oprea, Tudor I, Mutzel, Petra, Waldmann, Herbert

Journal:

Nature Chemical Biology

Year:

2009

Language:

english

File:

PDF, 338 KB

english, 2009

11

Synthesis, properties, and fungal degradation of castor-oil-based polyurethane composites with different cellulose contents

Oprea, Stefan, Potolinca, Violeta Otilia, Gradinariu, Petronela, Joga, Aurora, Oprea, Veronica

Journal:

Year:

2016

Language:

english

File:

PDF, 1.86 MB

english, 2016

12

Facile Use of ZnO Nanopowders to Protect Old Manual Paper Documents

Motelica, Ludmila, Popescu, Aurelian, RÄzvan, Anca-Gabriela, Oprea, Ovidiu, TruÅcÄ, Roxana-Doina, Vasile, Bogdan-Stefan, Dumitru, Florina, Holban, Alina-Maria

Journal:

Year:

2020

File:

PDF, 8.44 MB

2020

13

Effect of pyridazine content and crosslinker structure on the properties of polyurethane elastomers

Journal:

Journal of Applied Polymer Science

Year:

2013

Language:

english

File:

PDF, 856 KB

english, 2013

14

Synthesis and characterization of a novel controlled release zinc oxide/gentamicin–chitosan composite with potential applications in wounds care

Vasile, Bogdan Stefan, Oprea, Ovidiu, Voicu, Georgeta, Ficai, Anton, Andronescu, Ecaterina, Teodorescu, Andrei, Holban, Alina

Journal:

International Journal of Pharmaceutics

Year:

2014

Language:

english

File:

PDF, 3.54 MB

english, 2014

15

Design-properties relationships of polyurethanes elastomers depending on different chain extenders structures

Oprea, Stefan, Timpu, Daniel, Oprea, Veronica

Journal:

Journal of Polymer Research

Year:

2019

Language:

english

File:

PDF, 5.52 MB

english, 2019

16

[IEEE 2008 31st International Spring Seminar on Electronics Technology (ISSE) - Budapest, Hungary (2008.05.7-2008.05.11)] 2008 31st International Spring Seminar on Electronics Technology - Image processing techniques used for dental x-ray image analysis

Oprea, Stefan, Marinescu, Costin, Lita, Ioan, Jurianu, Mariana, Visan, Daniel Alexandru, Cioc, Ion Bogdan

Year:

2008

Language:

english

File:

PDF, 193 KB

english, 2008

17

PV Forecasting Using Support Vector Machine Learning in a Big Data Analytics Context

Preda, Stefan, Oprea, Simona-Vasilica, Bâra, Adela, Belciu (Velicanu), Anda

Journal:

Year:

2018

Language:

english

File:

PDF, 5.64 MB

english, 2018

18

Chemical and biological characterization of soils from the Antarctic east coast

T. Negoita, G. Stefanic, M. Irimescu-Orzan, G. Oprea, V. Palanciuc

Journal:

Year:

2001

Language:

english

File:

PDF, 137 KB

english, 2001

19

Effects of Introducing Crude and Modified Soybean Oil into Polyurethane Structures on the Soil-Burial Biodegradation Process

Journal:

Polymer-Plastics Technology and Engineering

Year:

2015

Language:

english

File:

PDF, 593 KB

english, 2015

20

[IEEE 2011 6th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI) - Timisoara, Romania (2011.05.19-2011.05.21)] 2011 6th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI) - Large wind farms integration in Romanian power system. Case study: Moldavia region

Jigoria-Oprea, Dan, Barbulescu, Constantin, Kilyeni, Stefan, Raduca, Mihaela

Year:

2011

Language:

english

File:

PDF, 993 KB

english, 2011

21

Effect of structure on the thermal stability of curable polyester urethane urea acrylates

Journal:

Polymer Degradation and Stability

Year:

2002

Language:

english

File:

PDF, 151 KB

english, 2002

22

Dietary supplements that contain biotin do not influence flourescence Thyroid-Stimulating Hormone values when screening for congenital hypothiroidim in newborns

Oprea, Oana, Barbu, Stefan, Dobreanu, Minodora, Hutanu, Adina

Journal:

Health Problems of Civilization

Year:

2020

File:

PDF, 255 KB

2020

23

Synthesis of Polyether Urethanes with a Pyrimidine Ring in the Main Chain

Oprea, Stefan, Potolinca, Otilia

Journal:

Designed Monomers & Polymers

Year:

2010

Language:

english

File:

PDF, 313 KB

english, 2010

24

Pseudoangiomatous Stromal Hyperplasia (PASH) of the Breast: A Series of 24 Patients

Erin Bowman, Gabriela Oprea, Joel Okoli, Kathleen Gundry, Monica Rizzo, Sheryl Gabram-Mendola, Upender Manne, Geoffrey Smith, Stefan Pambuccian, Harvey L. Bumpers

Journal:

The Breast Journal

Year:

2012

Language:

english

File:

PDF, 160 KB

english, 2012

25

Synthesis and Characterization of Linear and Cross-Linked Cyclodextrin Polyurethane Elastomers

Oprea, Stefan, Potolinca, Violeta Otilia

Journal:

Polymer-Plastics Technology and Engineering

Year:

2013

Language:

english

File:

PDF, 1.01 MB

english, 2013

26

Bi1−xEuxFeO3 Powders: Synthesis, Characterization, Magnetic and Photoluminescence Properties

Surdu, Vasile-Adrian, Trușcă, Roxana Doina, Vasile, Bogdan Ștefan, Oprea, Ovidiu Cristian, Tanasă, Eugenia, Diamandescu, Lucian, Andronescu, Ecaterina, Ianculescu, Adelina Carmen

Journal:

Year:

2019

File:

PDF, 11.47 MB

2019

27

Synthesis of cross-linked polyurethane elastomers with fluorescein linkages

Stefan Oprea, Otilia Potolinca

Journal:

Journal of Materials Science

Year:

2009

Language:

english

File:

PDF, 233 KB

english, 2009

28

[IEEE 2016 International Conference on Applied and Theoretical Electricity (ICATE) - Craiova, Romania (2016.10.6-2016.10.8)] 2016 International Conference on Applied and Theoretical Electricity (ICATE) - Optimal design of a radial flux spoke-type interior rotor permanent magnet generator for micro-wind turbine applications

Chirca, Mihai, Oprea, Claudiu, Teodosescu, Petre-Dorel, Breban, Stefan

Year:

2016

Language:

english

File:

PDF, 604 KB

english, 2016

29

Extended lipid profile in Romanian ischemic stroke patients in relation to stroke severity and outcome: a path analysis model

Hutanu, Adina, Iancu, Mihaela, Dobreanu, Minodora, Oprea, Oana, Barbu, Stefan, Maier, Smaranda, Tero-Vescan, Amelia, Bajko, Zoltan, Balasa, Rodica

Journal:

Archives of Medical Science

Year:

2019

File:

PDF, 119 KB

2019

30

c-kit expression in adenoid cystic carcinoma does not have an impact on local or distant tumor recurrence

Deniz L. Aslan, Gabriela M. Oprea, Shanna M. Jagush, H. Evin Gulbahce, George L. Adams, Patrick M. Gaffney, Kay Savik, Stefan E. Pambuccian

Journal:

Year:

2005

Language:

english

File:

PDF, 540 KB

english, 2005

31

Mesoporous silica coatings for cephalosporin active release at the bone-implant interface

Rădulescu, Dragoş, Voicu, Georgeta, Oprea, Alexandra Elena, Andronescu, Ecaterina, Grumezescu, Valentina, Holban, Alina Maria, Vasile, Bogdan Stefan, Surdu, Adrian Vasile, Grumezescu, Alexandru Mihai,

Journal:

Applied Surface Science

Year:

2015

Language:

english

File:

PDF, 2.62 MB

english, 2015

32

MANAGEMENT OF APRICOT TREE PLANTATIONS ON THE BASIS OF ´INTEGRATED FRUIT PRODUCTION´ CONCEPT

Balan, V., Roman, M., Gherghe, P., Petrisor, C., Lazar, V., Miu, F., Tudor, V., Oprea, M., Drosu, S., Chireceanu, C., Stefan, S., Gavriluta, I., Nitu, A.

Journal:

Acta Horticulturae

Year:

2006

Language:

english

File:

PDF, 323 KB

english, 2006

33

Physical properties and the ability to disperse into different polar solvents of the new polyurethane–cellulose composites

Oprea, Stefan, Potolinca, Violeta Otilia, Oprea, Veronica

Journal:

Journal of Elastomers and Plastics

Year:

2019

Language:

english

File:

PDF, 1.44 MB

english, 2019

34

Recent advances in composites based on cellulose derivatives for biomedical applications

Oprea, Madalina, Voicu, Stefan Ioan

Journal:

Carbohydrate Polymers

Year:

2020

File:

PDF, 7.88 MB

2020

35

A Scaffold-Tree-Merging Strategy for Prospective Bioactivity Annotation of γ-Pyrones

Stefan Wetzel, Wolfram Wilk, Samy Chammaa, Bianca Sperl, Anke G. Roth, Aybike Yektaoglu, Steffen Renner, Thorsten Berg, Christoph Arenz, Athanassios Giannis, Tudor I. Oprea, Daniel Rauh, Markus Kaiser

Journal:

Angewandte Chemie International Edition

Year:

2010

Language:

english

File:

PDF, 457 KB

english, 2010

36

Chain Extender and Diisocyanate Amount Effects on the Thermal, Mechanical and Wettability Properties of Some Polyurethane Elastomers

Vlad, Stelian, Oprea, Stefan

Journal:

Year:

2008

Language:

english

File:

PDF, 155 KB

english, 2008

37

Effect of the hard-segment structure on the dielectric relaxation of crosslinked polyurethanes

Journal:

Journal of Applied Polymer Science

Year:

2011

Language:

english

File:

PDF, 1.72 MB

english, 2011

38

[IEEE 2011 10th International Conference on Environment and Electrical Engineering (EEEIC) - Rome, Italy (2011.05.8-2011.05.11)] 2011 10th International Conference on Environment and Electrical Engineering - Integration of large wind farms within the Romanian power system

Jigoria-Oprea, Dan, Kilyeni, Stefan, Barbulescu, Constantin, Solomonesc, Florin, Cristian, Dan

Year:

2011

Language:

english

File:

PDF, 1.12 MB

english, 2011

39

Synthesis and characterization of novel polyurethane elastomers that include curcumin with various cross-linked structures

Oprea, Stefan, Potolinca, Violeta Otilia, Oprea, Veronica

Journal:

Journal of Polymer Research

Year:

2020

File:

PDF, 1.16 MB

2020

40

Interpretive yields of screening Pap tests and diagnostic Pap tests

Edward B. Stelow, H. Evin Gulbahce, Klint Kjeldahl, Gabriela M. Oprea, Kay Savik, Stefan. E. Pambuccian

Journal:

Diagnostic Cytopathology

Year:

2004

Language:

english

File:

PDF, 99 KB

english, 2004

41

Novel quinoline-based polyurethane elastomers. The effect of the hard segment structure in properties enhancement

Journal:

Journal of Polymer Research

Year:

2012

Language:

english

File:

PDF, 237 KB

english, 2012

42

[IEEE 2007 30th International Spring Seminar on Electronics Technology - Cluj-Napoca, Romania (2007.5.9-2007.5.13)] 2007 30th International Spring Seminar on Electronics Technology (ISSE) - Determination of Misplaced Drill Holes on a PCB

Oprea, Stefan, Lita, Ioan, Cioc, Ion Bogdan, Visan, Daniel Alexandru

Year:

2007

Language:

english

File:

PDF, 1.17 MB

english, 2007

43

[IEEE 2018 10th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) - Iasi, Romania (2018.6.28-2018.6.30)] 2018 10th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) - Simple and Digital Implementation of PI Controller Used in Voltage-Mode Control

Platon, Andrei, Oprea, Sergiu, Florescu, Adriana, Rosu, Stefan George

Year:

2018

File:

PDF, 823 KB

2018

44

AIP Conference Proceedings [AIP Publishing APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019) - Strbske Pleso, Slovak Republic (19–21 June 2019)] APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019) - Impact of temporary loss of connectivity in the Epurasu branch and its effects on the composition and distribution of ihtiofauna

Zamfir, Adrian-Ştefan, Deák, György, Dănălache, Tiberius Marcel, Georgescu, Puiu Lucian, Raischi, Marius Constantin, Cristea, Alexandru, Oprea, Lucian, Lumînăroiu, Lucian Gheorghe

Year:

2019

Language:

english

File:

PDF, 1.94 MB

english, 2019

45

Recent Advances in Applications of Cellulose Derivatives-Based Composite Membranes with Hydroxyapatite

Oprea, Madalina, Voicu, Stefan Ioan

Journal:

Year:

2020

File:

PDF, 2.51 MB

2020

46

Epoxy urethane acrylate

Stefan Oprea, Stelian Vlad, Aurelian Stanciu, Matei Macoveanu

Journal:

European Polymer Journal

Year:

2000

Language:

english

File:

PDF, 161 KB

english, 2000

47

Mechanical behavior during different weathering tests of the polyurethane elastomers films

Stefan Oprea, Veronica Oprea

Journal:

European Polymer Journal

Year:

2002

Language:

english

File:

PDF, 147 KB

english, 2002

48

Synthesis and characterization of photoactive polyurethane elastomers with 2,3-dihydroxypyridine in the main chain

Stefan Oprea, Violeta Otilia Potolinca

Journal:

Journal of Materials Science

Year:

2012

Language:

english

File:

PDF, 304 KB

english, 2012

49

[IEEE 2016 39th International Spring Seminar on Electronics Technology (ISSE) - Pilsen, Czech Republic (2016.5.18-2016.5.22)] 2016 39th International Spring Seminar on Electronics Technology (ISSE) - Reconfigurable signal generator and simulator for testing the digital transmission circuits

Visan, Daniel Alexandru, Lita, Adrian Ioan, Oprea, Stefan, Cioc, Ion Bogdan

Year:

2016

Language:

english

File:

PDF, 503 KB

english, 2016

50

[IEEE 2013 15th European Conference on Power Electronics and Applications (EPE) - Lille, France (2013.09.2-2013.09.6)] 2013 15th European Conference on Power Electronics and Applications (EPE) - Axial-flux vs. radial-flux permanent-magnet synchronous generators for micro-wind turbine application

Pop, Adrian Augustin, Jurca, Florin, Oprea, Claudiu, Chirca, Mihai, Breban, Stefan, Radulescu, Mircea M.

Year:

2013

Language:

english

File:

PDF, 1.05 MB

english, 2013

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