Güncel Gönderiler: Mühendislik Fakültesi / Faculty of Engineering
Toplam kayıt 369, listelenen: 41-60
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Advantages of pulse-train excitation in narrow-band terahertz generation: mitigation of undesired nonlinear effects
(Optica Publishing Group, 2024)In this work, we have studied the limitations of narrowband multi-cycle (MC) terahertz (THz) generation via optical rectification (OR) in periodically poled lithium niobate (PPLN) crystals. Detailed investigation of the ... -
Multi-watt SESAM mode-locking and broad CW tuning (996–1073 nm) in diode-pumped Yb:LLF laser
(Optica, 2024)We report broadest continuous-wave tuning in 996-1073 nm range and SESAM modelocking with highest power 1.6-2.8 W (352-570 mW) and 181 fs (110 fs) long pulses from diodepumped Yb:LLF laser systems. -
Power scaling potential of diode-pumped Cr:LiCAF slab lasers to >10 W Level in continuous-wave operation
(2024)We have experimentally and numerically investigated the power scaling capacity of diode edge-pumped Cr:LiCAF slab lasers employing low chromium doped samples and showed their potential to exceed 10 W output power level ... -
EEG-based emotion recognition in neuromarketing using fuzzy linguistic summarization
(IEEE, 2024)In recent years, to increase market share, companies have preferred neuromarketing over traditional methods for better analysis of consumer behavior. Since it easily detects customers' subconscious preferences, ... -
Composition and products in vector-valued sobolev spaces and application
(Pleiades Publishing, 2024)In this paper, we will show the properties of composition operators u → f (u) in framework of E-valued Sobolev and Lizorkin–Triebel spaces. Here E is a Banach space. Boundedness and continuity properties will be discussed ... -
Dual-Wavelength CW and CW mode-locked Cr:Colquirrite Lasers
(Optica, 2024)We show the versatile dual-wavelength operation of Cr:LiCAF and Cr:LiSAF lasers around 790 and 850 nm using diving optical-axis birefringent filters. In mode-locked regime, tunable synchronous two-color picosecond pulses ... -
A novel supercritical carbon dioxide combined cycle fueled by biomass: Thermodynamic assessment
(Renewable Energy, 2024)As a carbon-neutral type of renewable energy, biomass is beneficial for reducing carbon emissions in the electricity sector. A biomass gasification process integrated with a combined cycle is proposed here. Wood is chosen ... -
Temperature dependence of THz generation efficiency, THz refractive index, and THz absorption in lithium-niobate around 275 GHz
(Optical Materials Express, 2024)In this study, we demonstrate the capabilities of the pulse train excitation approach in determining key material properties of nonlinear crystals, such as refractive index, thermo-optic coefficient, and absorption. The ... -
Qualitative properties of fractional convolution elliptic and parabolic operators in Besov spaces,
(Fractional Calculus and Applied Analysis, 2024)The maximal Bs p,q -regularity properties of a fractional convolution elliptic equation is studied. Particularly, it is proven that the operator generated by this nonlocal elliptic equation is sectorial in Bs p,q and ... -
Multi-level trend analysis of extreme climate indices by a novel hybrid method of fuzzy logic and innovative trend analysis
(Springer, 2025)Multi-level trend analysis of extreme climate variables is an efficient method for in-depth investigation of the climate change impacts on ecohydrology. However, most of existing statistical methods do not reveal potential ... -
GHz SESAM-modelocked femtosecond Yb:YLF laser
(Optica, 2024)We report the first GHz Yb:YLF laser generating 210 fs long pulses at 40 mW average power output from a low-cost, self-starting, single-mode diode pumped cavity with integrated relative intensity noise <0.45%. -
Identifying toxic elements in water, sediments, and roots of mangrove forest (Avicennia marina) in Chabahar Bay, Sea of Oman
(Elsevier, 2024)Mangroves play a crucial role in filtering pollutants from water and sediments. However, excessive accumulation of potentially toxic elements (PTEs) has harmful effects on marine organisms. This article investigates the ... -
Dual-wavelength synchronously mode-locked Cr:LiSAF laser with a tunable beating frequency and a central wavelength
(Optica, 2024)We demonstrate a versatile dual-wavelength synchronous mode-locking of a diode-pumped Cr:LiSAF laser for the first time, to our knowledge. A two-color mode-locked operation is achieved by using intracavity birefringent ... -
Diode-pumped passively mode-locked femtosecond Yb:YLF laser at 1.1 GHz
(Optica, 2024)We report femtosecond pulse generation at GHz repetition rates with the Yb:YLF gain medium for the first time. A simple, low-cost, and compact architecture is implemented for the potential usage of the system as a low-noise ... -
Assessment of electromagnetic shielding efficacy of magnetic metal oxide nanoparticles and their application in electromagnetic shielding paints
(Chemistry Europe, 2024)People are continuously exposed to electromagnetic waves emitted by mobile phones, base stations, computers, household electrical appliances, and nearby devices. Shielding against electromagnetic radiation is of great ... -
A simulated annealing algorithm for the faculty-level university course timetabling problem
(Pamukkale University Journal of Engineering Sciences, 2024)In this study, faculty-level university course timetabling problem with double major and minor program constraints where classrooms are shared with several faculties is taken into account. This is the first study considering ... -
Challenges in power scaling of Cr:LiCAF lasers: effect of passive losses
(Optica, 2024)In this work, we have investigated the continuous-wave (cw) lasing potential of thin slab-shaped Cr:LiCAF crystals with a low chromium doping level of around 1% and various lengths of 1 to 2 cm. These relatively long ... -
Su verimliliği aparatı SUTAR
(İstanbul Teknopark TÜBİTAK Bigg Paneli, İstanbul, 2023, 2023) -
On some ricci curvature tensors in finsler geometry
(hosted by the American Mathematical Society, 2023)In this paper, we discuss several Ricci curvature tensors and their relationship with the Ricci curvature and some non-Riemannian quantities. By these Ricci curvature tensors, we shall have a better understanding on the ... -
HayAnksi!
(2023)HayAnksi! bilgisayarlı bilişsel davranışçı terapi (bBDT) uygulamalarının kaygı bozukluklarındaki etkililiğini niş uygulamalarla ve gelişmiş bilgi teknolojilerinin kullanımıyla birleştirmeyi amaçlayan bir projedir. HayAnksi! ...
