Güncel Gönderiler: Elektrik-Elektronik Mühendisliği Bölümü Koleksiyonu
Toplam kayıt 846, listelenen: 781-800
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Thermal effects on cornea during keratoconus treatment
(2012)Keratoconus is characterized by stromal thinning that leads to corneal surface distortion. It causes nanofibrils become weaker and change in cornea's shape. Cornea leans out. Symptoms such as astigmatism appeared as a ... -
Effect of temperature and graphene oxide on the swelling of PAAm-GO composite gels
(Avestia Publishing, 2019)Graphene oxide (GO) is a two dimensional carbon material with similar one-atom thickness, and is a light material having extremely high strength and thermal stability [1]. Thus, GO is an efficient filler for the enhancement ... -
Evaluation of the fractal dimension of polyacrylamide during gelation and swelling
(Elsevier, 2021)The photon scattering method was performed to monitor the free radical crosslinking copolymerization (FCC) of acrylamide (AAm) applied with N,N'-methylenebis (acrylamide) (Bis) in time. FCC experiments were conducted using ... -
Fractal dimension and phase transition of graphene oxide (GO) doped polyacrylamide
(Elsevier Sci Ltd, 2020)Graphene Oxide (GO)- Polyacrylamide composites prepared between 5 and 50 mu l GO were performed by Fluorescence Spectroscopy. The phase transition performed on the composites was measured by calculating the critical ... -
Investigation of thermal effects and physical parameters on crosslinking by different riboflavin solutions and UV-A
(2012)Riboflavin-Dextran and Riboflavin-Dextrin solutions have the ability to create crosslinks between fibrilles in the biological tissues. These solutions cause the generation of free oxygen radicals by the excitement of UV ... -
Hiperspektral görüntülerin otomatik uyarlamalı ışıklılık dönüşümü ve 3D-DCT yöntemi kullanılarak sıkıştırılması
(2020)Hiperspektral görüntüleme, farklı uygulama alanlarındaki kullanımı ile son yıllarda oldukça popüler bir konu haline gelmiştir. Yüksek depolama alanlarına ihtiyaç duyan hiperspektral görüntülerin yüksek verim ve kalite ile ... -
Cohomological dimension and top local cohomology modules
(Rocky Mountain Mathematics Consortium, 2019)Let R be a Noetherian ring, I an ideal of R and M an R-module. In this paper, we first determine a condition under which a given integer t is a lower bound for the cohomological dimension cd(I,M), and use this to conclude ... -
Compression of hyperspectral images using adaptive luminance transform
(Institute of Electrical and Electronics Engineers Inc., 2018)In this paper, compression of hyperspectral images with luminance transform is explained. First, similar image bands are grouped on hyperspectral image and luminance transform is performed independently on these groups. ... -
Effects of hyperspectral image compression methods on classification
(Institute of Electrical and Electronics Engineers Inc., 2018)Because of having large data size in hyperspectral imaging, compression becomes an important necessity in terms of the transmission and storage of the data. There are several compression approaches proposed in the literature, ... -
Düşük Arka/Yakın Yan Kulakçık Seviyesine Sahip Dizi Beslemeli Parabolik Reflektör Anten Tasarımı
(2017)Günümüzde sivil alanlarda olduğu kadar askeri alanlarda da önemli bir yere sahip olan antenler, radar sistemlerinde sistem karakteristiğini belirleyen en önemli elemanlardan biridir. Reflektör antenler dar hüzme genişlikli ... -
Compact and Planar WCDMA/WLAN/UWB Antenna with Shorted Loop and Monopole Elements
(Applied Computational Electromagnetics Soc, 2016)A compact, planar, multiband antenna with loop and monopole elements suitable for wideband code division multiple access (WCDMA), wireless LAN (WLAN), and ultra wideband (UWB) wireless communications is presented in this ... -
Antimicrobial cerium ion-chitosan crosslinked alginate biopolymer films: A novel and potential wound dressing
(Elsevier Science Bv, 2017)Wound dressings require good antiseptic properties, mechanical strength and, more trustably, natural material ingredients. Antimicrobial properties of cerium ions and chitosan are known and alginate based wound dressings ... -
Single fed UWB sierpinski fractal monopole antenna array
(Institute of Electrical and Electronics Engineers Inc., 2019)In this work, single fed uniformly spaced seven elements mod-3 Sierpinski gasket antenna array is designed using CST MWS (Computer Simulation Technology Microwave Studio). The designed antenna array is fed by an N type ... -
Two-dimensional quantum-spin-1/2 XXZ magnet in zero magnetic field: Global thermodynamics from renormalisation group theory
(Taylor & Francis Ltd, 2019)Phase diagram, critical properties and thermodynamic functions of the two-dimensional field-free quantum-spin-1/2 XXZ model has been calculated globally using a numerical renormalisation group theory. The nearest-neighbour ... -
Surfactant and metal ion effects on the mechanical properties of alginate hydrogels
(Elsevier Science Bv, 2016)This paper addresses the controlled variation of the mechanical properties of alginate gel beads by changing the alginate concentration or by adding different surfactants or cross-linking cations. Alginate beads containing ... -
Gelation of PAAm-PVP composites: A fluorescence study
(World Scientific Publ Co Pte Ltd, 2014)Hybrid hydrogels are a new class of composite materials. Polyacrylamide (PAAm) hydrogels are mainly produced by free radical crosslinking copolymerization (FCC) of AAm in the presence of N, N'-methylene bis (acrylamide) ... -
Monitoring the gelation of polyacrylamide-sodium alginate composite by fluorescence technique
(Taylor & Francis Ltd, 2012)Polyacrylamide (PAAm)-sodium alginate (SA) composite was prepared with different amounts of SA varying in the range between 0.06% and 2% (w/v). The PAAm-SA composite was characterized by the steady-state fluorescence ... -
Elastic percolation of swollen polyacrylamide (PAAm)-multiwall carbon nanotubes composite
(Taylor & Francis Ltd, 2012)Polyacrylamide (PAAm)-multiwalled carbon nanotube (MWNT) composites were prepared via free radical cross-linking copolymerization with different amounts of MWNTs varying in the range between 0.1 and 50 wt%. The mechanical ... -
Monitoring of dynamical processes in PAAm-MWNTs composites by fluorescence method
(Taylor & Francis Ltd, 2012)Polyacrylamide (PAAm)-multi walled carbon nanotube (MWNT) composites were prepared by free radical cross-linking copolymerization in water. Ammonium persulfate and N,N'-methylenebis (acrylamide) (BIS) were used as a free ... -
Investigation of Drying of Poly(N-isoproplacrylamide-co-acrylamide) by Fluorescence Technique
(Wiley-Blackwell, 2013)The steady-state fluorescence technique was performed on drying of various molar percentages of poly(N-isopropylacrylamide-co- acrylamide) [poly(NIPA-co-AAc)] to elucidate the mechanism of temperature-induced phase separation ...
