Olga Jakšić

Dr. Olga Jakšić

UNIVERSITY OF BELGRADE - INSTITUTE ОF CHEMISTRY, TECHNOLOGY AND METALLURGY - NATIONAL INSTITUTE OF THE REPUBLIC OF SERBIA
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Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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28 June 2023 in Biomimetics
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Journal Article
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Zoran JaksicZoran Jaksic
Zoran Jaksic
SDSwagata Devi
Swagata Devi
Olga JakšićOlga Jakšić
Olga Jakšić
KGKoushik Guha
Koushik Guha
The application of artificial intelligence in everyday life is becoming all-pervasive and unavoidable. Within that vast field, a special place belongs to biomimetic/bio-inspired algorithms for multiparameter optimization, which find their use in a large number of areas. Novel methods and advances are being published at an accelerated pace. Because of that, in spite of the fact that there are a lot of surveys and reviews in the field, they quickly become dated. Thus, it is of importance to keep pace with the current developments. In this review, we first consider a possible classification of bio-inspired multiparameter optimization methods because papers dedicated to that area are relatively scarce and often contradictory. We proceed by describing in some detail some more prominent approaches, as well as those most recently published. Finally, we consider the use of biomimetic algorithms in two related wide fields, namely microelectronics (including circuit design optimization) and nanophotonics (including inverse design of structures such as photonic crystals, nanoplasmonic configurations and metamaterials). We attempted to keep this broad survey self-contained so it can be of use not only to scholars in the related fields, but also to all those interested in the latest developments in this attractive area.

23 August 2007 in Journal of Optics A: Pure and Applied Optics
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Journal Article
Closed access
Zoran JaksicZoran Jaksic
Zoran Jaksic
Olga JakšićOlga Jakšić
Olga Jakšić
ZDZoran Djurić
Zoran Djurić
CKChristoph Kment
Christoph Kment

22 May 2023 in Chemosensors
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Journal Article
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SCSagarika Choudhury
Sagarika Choudhury
KBKrishna Lal Baishnab
Krishna Lal Baishnab
KGKoushik Guha
Koushik Guha
Zoran JaksicZoran Jaksic
Zoran Jaksic
Olga JakšićOlga Jakšić
Olga Jakšić
Jacopo IANNACCIJacopo IANNACCI
Jacopo IANNACCI
This study discusses the use of a triple material gate (TMG) junctionless tunnel field-effect transistor (JLTFET) as a biosensor to identify different protein molecules. Among the plethora of existing types of biosensors, FET/TFET-based devices are fully compatible with conventional integrated circuits. JLTFETs are preferred over TFETs and JLFETs because of their ease of fabrication and superior biosensing performance. Biomolecules are trapped by cavities etched across the gates. An analytical mathematical model of a TMG asymmetrical hetero-dielectric JLTFET biosensor is derived here for the first time. The TCAD simulator is used to examine the performance of a dielectrically modulated label-free biosensor. The voltage and current sensitivity of the device and the effects of the cavity size, bioanalyte electric charge, fill factor, and location on the performance of the biosensor are also investigated. The relative current sensitivity of the biosensor is found to be about 1013. Besides showing an enhanced sensitivity compared with other FET- and TFET-based biosensors, the device proves itself convenient for low-power applications, thus opening up numerous directions for future research and applications.

15 November 2007 in Sensors and Actuators B: Chemical
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Journal Article
Closed access
ZDZoran Djurić
Zoran Djurić
IJIvana Jokić
Ivana Jokić
MFMiloš Frantlović
Miloš Frantlović
Olga JakšićOlga Jakšić
Olga Jakšić

27 November 2022 in Soft Computing
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Olga JakšićOlga Jakšić
Olga Jakšić
Zoran JaksicZoran Jaksic
Zoran Jaksic
KGKoushik Guha
Koushik Guha
Ana Cristina G-SILVAAna Cristina G-SILVA
Ana Cristina G-SILVA
NLNaushad Manzoor Laskar
Naushad Manzoor Laskar

26 August 2022 in Micromachines
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OPOSOR PERTIN
OSOR PERTIN
KGKoushik Guha
Koushik Guha
Olga JakšićOlga Jakšić
Olga Jakšić
Zoran JaksicZoran Jaksic
Zoran Jaksic
Jacopo IANNACCIJacopo IANNACCI
Jacopo IANNACCI
This paper proposes a monostable nonlinear Piezoelectric Energy Harvester (PEH). The harvester is based on an unconventional exsect-tapered fixed-guided spring design, which introduces nonlinearity into the system due to the bending and stretching of the spring. The physical–mathematical model and finite element simulations were performed to analyze the effects of the stretching-induced nonlinearity on the performance of the energy harvester. The proposed exsect-tapered nonlinear PEH shows a bandwidth and power enhancement of 15.38 and 44.4%, respectively, compared to conventional rectangular nonlinear PEHs. It shows a bandwidth and power enhancement of 11.11 and 26.83%, respectively, compared to a simple, linearly tapered and nonlinear PEH. The exsect-tapered nonlinear PEH improves the power output and operational bandwidth for harvesting low-frequency ambient vibrations.