يعرض 1 - 20 نتائج من 114 نتيجة بحث عن '"Okhay, Olena"', وقت الاستعلام: 0.54s تنقيح النتائج
  1. 1
    Metal Oxide Based Thermoelectric Materials

    المؤلفون: Okhay, Olena, Tkach, Alexander

    وصف الملف: application/pdf

    Relation: 978-981-99-5639-5

    الاتاحة: http://hdl.handle.net/10773/40131

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  2. 2
    Academic Journal
    Energy geo-structures: A review of their integration with other sources and its limitations

    المؤلفون: Aresti, Lazaros, Alvi, Maria Romana, Cecinato, Francesco, Fan, Tao, Halaj, Elzbieta, Li, Zili, Okhay, Olena, Poulsen, Soren Erbs, Quiroga Gómez, Sonia, Suárez Gálvez, Cristina Isabel, Tang, Anh Minh, Valancius, Rokas, Christodoulides, Paul

    المساهمون: Universidad de Alcalá. Departamento de Economía

    مصطلحات موضوعية: Shallow geothermal energy, Energy geo-structures, Geothermal energy potential, Energy geo-structures barriers, Geothermal energy integration, Economía, Economics

    وصف الملف: application/pdf

    Relation: Renewable Energy, 2024, v. 230; http://hdl.handle.net/10017/62136; AR/0000048934; Renewable Energy; 230

    الاتاحة: http://hdl.handle.net/10017/62136
    https://doi.org/10.1016/j.renene.2024.120835

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  3. 3
    Academic Journal
    A comprehensive review of the use of porous graphene frameworks for various types of rechargeable lithium batteries

    المؤلفون: Okhay, Olena, Tkach, Alexander

    المصدر: Journal of Energy Storage ; volume 80, page 110336 ; ISSN 2352-152X

    الاتاحة: http://dx.doi.org/10.1016/j.est.2023.110336
    https://api.elsevier.com/content/article/PII:S2352152X23037350?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S2352152X23037350?httpAccept=text/plain

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  4. 4
    Academic Journal
    Comment on “Enhanced electromagnetic tunability of barium strontium titanate films via coating Pr modified yttrium iron garnet layer”

    المؤلفون: Tkach, Alexander, Okhay, Olena

    المصدر: Journal of Materials Science & Technology ; volume 224, page 169-171 ; ISSN 1005-0302

    الاتاحة: https://doi.org/10.1016/j.jmst.2024.10.048
    https://api.elsevier.com/content/article/PII:S1005030224010855?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S1005030224010855?httpAccept=text/plain

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  5. 5
    Academic Journal
    Initial Study of Reduced Graphene Oxide Foams Modified by Mn and Bi as Capacitive Electrode Materials.

    المؤلفون: Okhay, Olena, Yang, Tao, Tkach, Alexander

    المصدر: Nanoenergy Advances; Dec2024, Vol. 4 Issue 4, p318-327, 10p

    مصطلحات موضوعية: CARBON foams, POROUS materials, GRAPHENE oxide, WEARABLE technology, ELECTRONIC materials


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  6. 6
    Academic Journal
    Carbon and Related Composites for Sensors and Energy Storage: Synthesis, Properties, and Application.

    المؤلفون: Okhay, Olena, Goncalves, Gil

    المصدر: C; Dec2024, Vol. 10 Issue 4, p101, 5p

    مصطلحات موضوعية: CARBON-based materials, PROTON exchange membrane fuel cells, ELECTRICAL capacitance tomography, METAL analysis, PROXIMITY detectors, PRUSSIAN blue, SUPERCAPACITOR electrodes, SILICON carbide


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  7. 7
    Academic Journal
    Polyaniline—Graphene Electrodes Prepared by Electropolymerization for High-Performance Capacitive Electrodes: A Brief Review

    المؤلفون: Okhay, Olena, Tkach, Alexander

    مصطلحات موضوعية: PANI, Electrodes, Nanostructures, Electropolymerization, rGO, Graphene

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.02284.CEECIND%2FCP1659%2FCT0018/PT; CENTRO-01- 0145- FEDER-022083; LA/P/0006/2020; https://www.mdpi.com/2313-0105/8/10/191; http://hdl.handle.net/10773/36032; 191

    الاتاحة: http://hdl.handle.net/10773/36032
    https://doi.org/10.3390/batteries8100191

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  8. 8
    Academic Journal
    Low-Temperature Dielectric Response of Strontium Titanate Thin Films Manipulated by Zn Doping

    المؤلفون: Okhay, Olena, Vilarinho, Paula M., Tkach, Alexander

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FCTM-CTM%2F29671%2F2017/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT; https://www.mdpi.com/1996-1944/15/3/859; http://hdl.handle.net/10773/36031; 859

    الاتاحة: http://hdl.handle.net/10773/36031
    https://doi.org/10.3390/ma15030859

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  9. 9
    Academic Journal
    Synergetic Effect of Polyaniline and Graphene in Their Composite Supercapacitor Electrodes: Impact of Components and Parameters of Chemical Oxidative Polymerization

    المؤلفون: Okhay, Olena, Tkach, Alexander

    مصطلحات موضوعية: Polymer, Graphene, Geduced graphene oxide, Composites, Chemical oxidative polymerization, Supercapacitors, Electrodes, Specific capacitance, PANI, Cycling stability

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.02284.CEECIND%2FCP1659%2FCT0018/PT; https://www.mdpi.com/2079-4991/12/15/2531; http://hdl.handle.net/10773/35965; 2531

    الاتاحة: http://hdl.handle.net/10773/35965
    https://doi.org/10.3390/nano12152531

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  10. 10
    Academic Journal
    Reduced Graphene Oxide: Polycarbonate Electrodes on Different Supports for Symmetric Supercapacitors

    المؤلفون: Okhay, Olena, Bastos, Alexandre Cunha, Andreeva, Kateryna, Tuukkanen, Sampo, Tkach, Alexander

    مصطلحات موضوعية: Reduced graphene oxide, Polymer, Vacuum filtration, Freestanding electrode, Flexible supercapacitors

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; https://www.mdpi.com/2311-5629/8/1/12; http://hdl.handle.net/10773/35966; 12

    الاتاحة: http://hdl.handle.net/10773/35966
    https://doi.org/10.3390/c8010012

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  11. 11
    Academic Journal
    Comment on “Hole-pinned defect-dipoles induced colossal permittivity in Bi doped SrTiO3 ceramics with Sr deficiency”

    المؤلفون: Tkach, Alexander, Okhay, Olena

    مصطلحات موضوعية: SrTiO3 ceramics, Doped dielectrics, Perovskite structure, Giant permittivity

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00602%2F2013%2FCP1162%2FCT0015/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEMS%2F00481%2F2019/PT; CENTRO-01-0145-FEDER-022083; http://hdl.handle.net/10773/36945

    الاتاحة: http://hdl.handle.net/10773/36945
    https://doi.org/10.1016/j.jmst.2020.05.064

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  12. 12
    Book
    Correction to: Strain Effect on the Properties of Polar Dielectric Thin Films

    المؤلفون: Tkach, Alexander, Okhay, Olena, Santos, André, Zlotnik, Sebastian, Serrazina, Ricardo, Vilarinho, Paula M., Costa, M. Elisabete

    المصدر: Lecture Notes in Mechanical Engineering ; Advances in Thin Films, Nanostructured Materials, and Coatings ; page C1-C1 ; ISSN 2195-4356 2195-4364 ; ISBN 9789811361326 9789811361333

    الاتاحة: https://doi.org/10.1007/978-981-13-6133-3_38
    https://link.springer.com/content/pdf/10.1007/978-981-13-6133-3_38

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  13. 13
    Academic Journal
    Chemical Activation of Apricot Pit-Derived Carbon Sorbents for the Effective Removal of Dyes in Environmental Remediation.

    المؤلفون: Vashchynskyi, Vitalii, Okhay, Olena, Boychuk, Tetiana

    المصدر: C; Dec2023, Vol. 9 Issue 4, p93, 17p

    مصطلحات موضوعية: ACTIVATION (Chemistry), ENVIRONMENTAL remediation, SORBENTS, CARBON-based materials, DYES & dyeing, METHYLENE blue, APRICOT


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  14. 14
    Academic Journal
    Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO3 composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

    المؤلفون: Tkach, Alexander, Okhay, Olena

    Relation: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0006%2F2020/PT; info:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.02284.CEECIND%2FCP1659%2FCT0018/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00481%2F2020/PT; CENTRO-01-0145-FEDER-022083; http://hdl.handle.net/10773/40143

    الاتاحة: http://hdl.handle.net/10773/40143
    https://doi.org/10.1039/D3TA01041D

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  15. 15
    Strontium titanate based films for tunable device applications

    المؤلفون: Okhay, Olena

    مصطلحات موضوعية: Engenharia de materiais, Titanato de estrôncio, Materiais policristalinos, Filmes finos, Aditivos

    وصف الملف: application/pdf

    الاتاحة: http://hdl.handle.net/10773/2325

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  16. 16
    Academic Journal
    Polar phonons in polycrystalline SrTiO 3 thin films: The role of the substrate

    المؤلفون: Okhay, Olena, Tkach, Alexander, Nuzhnyy, Dmitry, Petzelt, Jan, Maria Vilarinho, Paula

    المساهمون: Programa Operacional Factores de Competitividade – COMPETE and National funds via FCT, FCT independent researcher, Czech Science Foundation

    المصدر: Ferroelectrics ; volume 532, issue 1, page 89-99 ; ISSN 0015-0193 1563-5112

    الاتاحة: https://doi.org/10.1080/00150193.2018.1499407
    https://www.tandfonline.com/doi/pdf/10.1080/00150193.2018.1499407

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  17. 17
    Academic Journal
    Comment on "Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO3 composite films: a self-powered utility system for portable electronics", by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

    المؤلفون: Tkach, Alexander, Okhay, Olena

    المصدر: Journal of Materials Chemistry A; 12/14/2023, Vol. 11 Issue 46, p25756-25758, 3p


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  18. 18
    Academic Journal
    Thin film versus paper-like reduced graphene oxide: Comparative study of structural, electrical, and thermoelectrical properties

    المؤلفون: Okhay, Olena, Goncalves, Gil, Tkach, Alexander, Dias, Catarina, Ventura, Joao, Ribeiro da Silva, Manuel Fernando, Valente Goncalves, Luis Miguel, Titus, Elby

    مصطلحات موضوعية: CHEMICAL-REDUCTION, NANOCOMPOSITES, NANOSHEETS, GRAPHITE

    Relation: info:eu-repo/grantAgreement/FCT/5876/147332/PT; http://hdl.handle.net/10773/20433

    الاتاحة: http://hdl.handle.net/10773/20433
    https://doi.org/10.1063/1.4958956

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  19. 19
    Academic Journal
    Current Achievements in Flexible Piezoelectric Nanogenerators Based on Barium Titanate.

    المؤلفون: Okhay, Olena1,2 (AUTHOR) olena@ua.pt, Tkach, Alexander3 (AUTHOR) olena@ua.pt

    المصدر: Nanomaterials (2079-4991). Mar2023, Vol. 13 Issue 6, p988. 29p.

    مصطلحات موضوعية: *BARIUM titanate, *ENERGY harvesting, *MECHANICAL energy, *COMPOSITE structures, *KINETIC energy, *LEAD zirconate titanate, *NANOWIRES

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  20. 20
    Academic Journal
    Structure, Microstructure, and Dielectric Response of Polycrystalline Sr 1-x Zn x TiO 3 Thin Films.

    المؤلفون: Okhay, Olena, Vilarinho, Paula M., Tkach, Alexander

    المصدر: Coatings (2079-6412); Jan2023, Vol. 13 Issue 1, p165, 8p

    مصطلحات موضوعية: THIN films, DIELECTRICS, ATOMIC force microscopy, SCANNING electron microscopy, MICROSTRUCTURE

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