Nurhan GUNES

Dr. Nurhan GUNES

Electrical and Electronics Engineering, Sivas University of Science and Technology, Sivas, Turkey (Türkiye)
orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

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

Representative Publications

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29 December 2023 in Food Control
Verified
Journal Article
Closed access
AMAhmed Menevseoglu
Ahmed Menevseoglu
JEJ.A. Entrenas
J.A. Entrenas
NGNurhan GUNES
Nurhan GUNES
MDM.A. Dogan
M.A. Dogan
DPD. Pérez-Marín
D. Pérez-Marín

17 November 2023 in Microchemical Journal
Verified
Journal Article
Closed access
HAHuseyin Ayvaz
Huseyin Ayvaz
RTRiza Temizkan
Riza Temizkan
BKBurcu Kaya
Burcu Kaya
MSMerve Salman
Merve Salman
AMAhmed Menevseoglu
Ahmed Menevseoglu
Mustafa MortasMustafa Mortas
Mustafa Mortas

1 December 2016 in IET Signal Processing
Verified
Journal Article
Open access
PDF file
NGNurhan GUNES
Nurhan GUNES
MHMatthew Higgins
Matthew Higgins
MLMark S. Leeson
Mark S. Leeson
A stochastic resonator has been considered as an alternative signal processing tool because of its noise‐induced performance enhancement ability. Here, the resonator parameters, steady states and transition time of the system are redefined for bipolar binary pulse amplitude modulated (BPAM) signals such that the region in which the resonator benefits from noise can be identified. Simple parameter‐induced SR (PSR) designs are then built, based on this analysis in order to configure the resonator in the optimum region. Furthermore, sine‐induced SR based on using a periodic signal instead of noise is introduced to enhance the system performance and compared with noise‐enhanced SR (NSR). It is shown that sine‐induced SR provides a performance enhancement as it needs less power and does not require an adjustment relevant to the background noise. The results indicate that a resonator improves the receiver performance by eliminating noise if its parameters and BPAM characteristics are set accurately as given in the PSR designs, otherwise the resonator can benefit from either a noise as in NSR, or a sine wave as proposed.

28 December 2023 in Turkish Journal of Agriculture - Food Science and Technology
Verified
Journal Article
Open access
PDF file
AMAhmed Menevseoglu
Ahmed Menevseoglu
NGNurhan GUNES
Nurhan GUNES
HAHuseyin Ayvaz
Huseyin Ayvaz
SSS. Beyza Ozturk Sarıkaya
S. Beyza Ozturk Sarıkaya
CZCuma Zehiroğlu
Cuma Zehiroğlu
Erzincan Tulum Cheese (ETC) holds a significant place among the most popular cheeses in Türkiye. It has been awarded Protected Geographical Indication status, which restricts the allowable milk species, its production area, and specific sheep breed used in its production. Mineral content and antioxidant activity of ETC were aimed to be predicted using conventional FT-NIR and a portable FT-MIR spectrometer combined with partial least square regression (PLSR) and machine learning algorithms based on conditional entropy. Seventy ETC samples were analyzed for their mineral (Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, and P) content using ICP-MS. The samples' antioxidant activity was measured using the DPPH•+ scavenging activity method. PLSR combined with FT-NIR spectral data correlated with antioxidant activity (r=0.89) and minerals (as low as r=0.83) except for Cr and Fe. FT-MIR data provided a good correlation for minerals (as low as r=0.82) except for Cr and Mn and a moderate correlation with antioxidant activity (r=0.64). Information theory was applied to select wavenumbers used in machine learning algorithms, and better results were obtained compared to PLSR. Overall, FT-NIR and FT-MIR spectroscopy provided rapid (~ 1 min), non-destructive, sensitive, and reliable output for mineral and antioxidant activity predictions in commercial cheese samples.

12 September 2018 in Fluctuation and Noise Letters
Verified
Journal Article
Closed access
NGNurhan GUNES
Nurhan GUNES
MLMark S. Leeson
Mark S. Leeson
MHMatthew D. Higgins
Matthew D. Higgins

31 December 2024 in Signal, Image and Video Processing
Verified
Journal Article
Closed access
PDF file
NGNurhan GUNES
Nurhan GUNES
İDİremnur Duru
İremnur Duru
TTTimuçin Emre Tabaru
Timuçin Emre Tabaru