Browsing Bilgisayar Mühendisliği Bölümü Koleksiyonu by Issue Date
Now showing items 1-20 of 101
-
Monte Carlo simulation of a single detector unit for the neutron detector array NEDA
(ELSEVIER SCIENCE BV, 2012)A study of the dimensions and performance of a single detector of the future neutron detector array NEDA was performed by means of Monte Carlo simulations, using GEANT4. Two different liquid scintillators were evaluated: ... -
Structure of the N=50 As, Ge, Ga nuclei
(ELSEVIER SCIENCE BV, 2012)The level structures of the N = 50 As-83, Ge-82, and Ga-81 isotones have been investigated by means of multi-nucleon transfer reactions. A first experiment was performed with the CLARA PRISMA setup to identify these nuclei. ... -
Half-life of the I-pi=4(-) intruder state in P-34: M2 transition strengths approaching the island of inversion
(AMER PHYSICAL SOC, 2012)The half-life of the 2305-keV, I-pi = 4((-)) intruder state in P-34 has been measured as t(1/2) = 2.0(1) ns using gamma-ray coincidence, fast-timing techniques with the Bucharest HPGe and LaBr3:Ce detector array. Excited ... -
Gamma-ray fast-timing coincidence measurements from the O-18+O-18 fusion-evaporation reaction using a mixed LaBr3-HPGe array
(PERGAMON-ELSEVIER SCIENCE LTD, 2012)We report on a gamma-ray coincidence analysis using a mixed array of hyperpure germanium and cerium-doped lanthanum tri-bromide (LaBr3:Ce) scintillation detectors to study nuclear electromagnetic transition rates in the ... -
Lifetime measurements in neutron-rich Co-63,Co-65 isotopes using the AGATA demonstrator
(AMER PHYSICAL SOC, 2013)Lifetimes of the low-lying (11/2(-)) states in Co-63,Co-65 have been measured employing the recoil distance doppler shift method (RDDS) with the AGATA gamma-ray array and the PRISMA mass spectrometer. These nuclei were ... -
Design and test of high-speed flash ADC mezzanine card for high-resolution and timing performance in nuclear structure experiments
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2013)This work describes new electronics for the EX-OGAM2 (HP-Ge detector array) and NEDA (BC501A-based neutron detector array). A new digitizing card with high resolution has been designed for gamma-ray and neutron spectroscopy ... -
Multi-objective Optimization of Rotary Travelling Wave Oscillator (RTWO) With Neuro-Genetic Nondominated Sorting Algorithm
(IEEE, 2013)Rotary travelling wave oscillator (RTWO) represents a transmission line based technology for multi-gigahertz clock generation. RTWO design is a multiparameter-multi-objective problem with tradeoffs of performance measures, ... -
Collective nature of low-lying excitations in Zn-70,Zn-72,Zn-74 from lifetime measurements using the AGATA spectrometer demonstrator
(Amer Physical Soc, 2013)Background: Neutron-rich nuclei with protons in the fp shell show an onset of collectivity around N=40. Spectroscopic information is required to understand the underlying mechanism and to determine the relevant terms of ... -
Lifetime measurements in neutron-rich Cu isotopes
(Jagiellonian Univ Press, 2013)The nuclear structure of neutron-rich nuclei close to the double-magic nucleus Ni-78 has been investigated by measuring the lifetime of excited states. In this contribution, it will be presented the lifetime of the J(pi) ... -
Test of digital neutron-gamma discrimination with four different photomultiplier tubes for the NEutron Detector Array (NEDA)
(Elsevier Science BV, 2014)A comparative study of the neutron-gamma discrimination performance of a liquid scintillator detector BC501A coupled to four different 5 in photomultiplier tubes (ET9390kb, R11833-100, XP4512 and R4144) was carried out ... -
Efficient intelligent energy routing protocol in wireless sensor networks
(HINDAWI PUBLISHING CORPORATION, 2015)In wireless sensor networks energy is a very important issue because these networks consist of lowpower sensor nodes. This paper proposes a new protocol to reach energy efficiency. The protocol has a different priority in ... -
Digital pulse-timing technique for the neutron detector array NEDA
(Elsevier Science BV, 2015)A new digital pulse-timing algorithm, to be used with the future neutron detector array NEDA, has been developed and tested. The time resolution of four 5 in diameter photomultiplier tubes (XP4512, R4144, R11833-100, and ... -
Electrical properties of mn-doped Ni (x) Zn0.9-x Fe2O4 particles
(Springer, 2015)High-purity Mn-doped Ni (x) Zn0.9-x Fe-2 O (4) particles were fabricated by conventional ceramic processing. The ac conductivity reveals a temperature-dependent behavior at low frequencies and temperature-independent ... -
Energy efficiency in wireless sensor and actor networks by distributed time sychnronization algorithm
(IEEE, 2015)In this paper, for decrease transmissions delay in wireless sensor and actor network is suggested a distributed algorithm. Energy consumption is very important issue because they have limited energy. Current protocols due ... -
Electrical properties and hyperfine interactions of boron doped Fe3O4 nanoparticles
(Academic Press Ltd-Elsevier Science Ltd, 2015)The single spinel phase nano-structured particles of FeB5Fe2-xO4 (x = 0.1, 0.2, 0.3, 0.4 and 0.5) were synthesized by the glycothermal method and the effect of B3+ substitution on structural and dielectric properties of ... -
Polyol synthesis of Mn3+ substituted Fe3O4 nanoparticles: Cation distribution, structural and electrical properties
(Academic Press Ltd-Elsevier Science Ltd, 2015)In this study, MnxFe2-xO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) nanoparticles were synthesized by polyol route and the effect of Mn3+ substitution on structural and dielectric properties of Fe3O4 was studied. X-ray powder ... -
Investigation of the Quenched Surfaces of Visibly Luminescent Macro/Nanoporous Silicon under the Exposure of Typical Neuron Culture Media
(PLEIADES PUBLISHING INC, 2015)In this research paper, the quenching effects of visible photoluminescence of porous silicon relevant to doping types under an exposure of culture media such as Dulbecco's Modified Eagle's Medium and Phosphate-Buffered ... -
A New Front-End High-Resolution Sampling Board for the New-Generation Electronics of EXOGAM2 and NEDA Detectors
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2015)This paper presents the final design and results of the FADC Mezzanine for the EXOGAM (EXOtic GAMma array spectrometer) and NEDA (Neutron Detector Array) detectors. The measurements performed include those of studying the ... -
Magnetic, electrical and microwave properties of Mn-Co substituted NixZn0,8-xFe2O4 nanoparticles
(Elsevier Science SA, 2016)Mn-Co substituted spinel Ni-Zn ferrite nanoparticles were synthesized in the form of NixZn0,8-xMn0.1Co0.1Fe2O4 (0 <= x <= 0.8) using the solid state reaction route. 1 wt.% B2O3 (boron) was added to initial mixture to inhibit ... -
Micro-context Recognition of Sedentary Behaviour using Smartphone
(IEEE, 2016)Embedded sensors of smartphone provides a unique opportunity to recognize the micro-context of sedentary behaviour. In this paper, we present our research findings on how to recognize micro-contexts by utilizing on board ...