Yeşil, Sertan

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Profile URL
https://hdl.handle.net/20.500.14411/6811
Name Variants
Yeşil,S.
Sertan Yeşil
Yesil, Sertan
S.,Yeşil
Sertan, Yeşil
Yesil,S.
S., Yesil
Yeil S.
Sertan, Yesil
Yesil,Sertan
S.,Yesil
S., Yeşil
Yeşil, Sertan
Y.,Sertan
Y., Sertan
Job Title
Doktor Öğretim Üyesi
Email Address
sertan.yesil@atilim.edu.tr
Main Affiliation
Chemical Engineering
Status
Website
ORCID ID
0000-0003-2284-1559
Scopus Author ID
12781090400
Turkish CoHE Profile ID
Google Scholar ID
VDU7keUAAAAJ
WoS Researcher ID
H-8544-2013

Sustainable Development Goals

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Documents

20

Citations

436

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14

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Documents

18

Citations

387

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Scholarly Output

4

Articles

2

Views / Downloads

26/53

Supervised MSc Theses

0

Supervised PhD Theses

0

WoS Citation Count

3

Scopus Citation Count

18

Patents

0

Projects

0

WoS Citations per Publication

0.75

Scopus Citations per Publication

4.50

Open Access Source

0

Supervised Theses

0

JournalCount
Journal of Thermoplastic Composite Materials2
Proceedings - First NASA/ESA Conference on Adaptive Hardware and Systems, AHS 2006 -- 1st NASA/ESA Conference on Adaptive Hardware and Systems, AHS 2006 -- 15 June 2006 through 18 June 2006 -- Istanbul -- 687991
RAST 2005 - Proceedings of 2nd International Conference on Recent Advances in Space Technologies -- RAST 2005 - 2nd International Conference on Recent Advances in Space Technologies -- 9 June 2005 through 11 June 2005 -- Istanbul -- 679431
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Now showing 1 - 4 of 4
  • Thumbnail Image
    Article
    Citation - WoS: 1
    Citation - Scopus: 1
    PMMA-Based Electrospun Composite Fibers for Dye Adsorption From Water
    (Sage Publications Ltd, 2025) Cakar, Ilknur; Yesil, Sertan; Bayram, Goknur
    Poly (methyl methacrylate) (PMMA) and PMMA/poly (ethylene glycol) (PEG)-based composite fibers were produced using electrospinning technique with two different additives; halloysite nanotubes (HNTs) and boron phosphate (BPO4). The effect of the additives on the morphology, wettability and dye adsorption properties of electrospun fibers were investigated by Scanning Electron Microscopy (SEM), water contact angle measurement and UV-VIS spectrophotometry. The results of SEM analysis indicated that addition of PEG resulted in thinner average fiber diameter and beaded structure. Additionally, it was also observed that incorporating both HNT and BPO4 to the PMMA solution caused increased fiber diameter which might be due to increased solution viscosity. For PMMA fibers containing 3 wt% HNT, the highest average diameter and water contact angle were measured as 2204 +/- 302 nm and 110.29 +/- 3.9 degrees, respectively. The produced fibers were tested for the capability to adsorb methylene blue (MB) and methyl orange (MO) from aqueous solutions. Dye adsorption capacity of the samples increased by addition of HNT and BPO4. According to adsorption capacity results, PMMA/PEG/BPO4 composite sample containing 5 wt% BPO4, with an adsorption capacity of 0.76 mg/g, was determined as adsorbent for kinetic and isotherm studies. The adsorption kinetics were well described by the pseudo-second-order model, and equilibrium data were correlated with the Langmuir model.
  • Thumbnail Image
    Conference Object
    Citation - Scopus: 5
    Gezgin & Gezgin-2: Adaptive Real-time İmage Processing Subsystems For Earth Observing Small Satellites
    (IEEE Computer Soc, 2006) Ismailoǧlu,N.; Benderli,O.; Yeşil,S.; Sever,R.; Okcan,B.; Şengül,O.; Öktem,R.
    GEZGİN and GEZGİN-2 are real-time multi-spectral image processing subsystems developed for BİLSAT-1 and RASAT satellites respectively, the first two earth observing small satellites of Turkey, Main functionality of these subsystems is to compress in real-time multi-spectral images received concurrently from imagers, using JPEG2000 Image Compression algorithm. The compression features are controlled through user-supplied parameters uploaded in-orbit, so that the compression rate could be adapted to bandwidth, image quality and other mission requirements. GEZGİN employs both reconfigurable hardware and a DSP processor for image processing, where as the more advanced GEZGİN-2 contains full integration of the JPEG2000 processing path plus other image pre-processing features on reconfigurable hardware, hence offering increased performance and full re-configurability in orbit. Both systems demonstrate space-tailored architectures for implementing image processing functions where adaptability becomes the crucial issue determining robustness, flexibility and survivability of the system. © 2006 IEEE.
  • Thumbnail Image
    Conference Object
    Citation - Scopus: 11
    Gezgi̇n-2: an Advanced Image Processing Subsystem for Earth-Observing Small Satellites
    (2005) Ismailoǧlu,N.; Benderli,O.; Yeşil,S.; Sever,R.; Okcan,B.; Öktem,R.
    GEZGİN-2 is a real-time image processing subsystem, currently being developed for RASAT, the second small satellite to be launched by TÜBİTAK-BİLTEN, in 2007. It is an advanced version of the GEZCİN payload, implementing JPEG 2000 image compression algorithm and currently flying on the BİLSAT-1 satellite. The main enhancements in GEZGİN-2 are the integration of the full processing path of JPEG 2000 algorithm in a single Field Programmable Gate Array (FPGA) for increased processing performance and high speed data links complying with the ESA Spacewire standard, for data transfer at a rate of 100 Mbps. In addition to JPEG2000, GEZGIN-2 facilitates image pre-processing for cloud/sea detection and image/data encryption implemented on a daughter-board called GÖLGE. As in GEZGİN, GEZGİN-2 allows for adjustment of compression ratio for different mission times by means of run-time supplied parameters and full reconfigurability in orbit. © 2005 IEEE.
  • Thumbnail Image
    Article
    Citation - WoS: 2
    Citation - Scopus: 1
    Flame Retarded Plasticized Poly(lactic Acid) Using Phosphorus-Based Additives
    (Sage Publications Ltd, 2024) Yesil, Sertan; Aytac, Ayse; Selim, Fatma
    In this study, the synergistic effect of the flame-retardant additives on the properties of poly(lactic acid) (PLA) was investigated and at the same time, it was tried to increase the toughness of PLA by adding small amounts of phosphate-based additives to plasticized PLA as binary and ternary mixtures. Poly(ethylene glycol) (PEG) was used as a plasticizer. As flame retardant additives, ammonium polyphosphate (APP), tri-phenyl phosphate (TPP), and boron phosphate (BP) were used. Characterization of the composites was carried out by tensile test, impact test, differential scanning calorimetry (DSC), thermal gravimetric analyses (TGA), scanning electron microscopy (SEM), limiting oxygen index (LOI), and UL-94 horizontal burning tests. In addition, TGA-FTIR analyses were carried out to understand the thermal degradation mechanism of composites during combustion. According to the SEM micrographs of the burnt surfaces of the samples, a smooth and flat structure is observed in PLA/PEG/5TPP-5BP sample, while a porous structure and branching formations are observed in other composite samples. Among the composite samples, the best flame retardancy features were observed in the composite containing PLA/PEG/5APP-2.5TPP-2.5BP sample, and the highest impact strength and elongation at break values were obtained in the composite containing PLA/PEG/5APP-5TPP sample.