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Bulunan: 36 Adet 0.003 sn
Yayın Tarihi : 2015 ✕Koleksiyon : Mühendislik ve Doğa ... ✕
Koleksiyon [8]
İlgili Araştırmacılar [13]
Ambargo Durumu [1]
Tam Metin [2]
Yayın Türü [3]
Yazar/lar [31]
Atıf Dizini [3]
Konu Başlıkları [35]
Yayıncı [8]
Yayın Tarihi [1]
Yayın Dili [3]
Erişime Açık

Investigation of Design Criteria for the Type of Gabion Walls

URAY, Esra | TAN, Özcan

In civil engineering, connecting two different levels each other to provide the essential safety is a common problem and in solving this problem retaining structures are widely used. In this study, the design criteria of gabion retaining wall which is a kind of retaining wall was investigated by using Taguchi Method. Parameters which affect the design of gabion retaining wall are height, length of base, wall angle and angle of internal friction and slope of backfill and 16 different Taguchi design tables were formed by these using parameters. These design tables were modelled by using computer ...Daha fazlası

Konferans Bildirisi 2015 International Conference on Civil and Environmental Engineering (ICOCEE – Cappadocia 2015) 4 Görüntülenme
Erişime Açık

Harmoni Arama Algoritması İle Betonarme Konsol Dayanma Duvarlarının Optimum Tasarımı

URAY, Esra | ÇARBAŞ, Serdar | ERKAN, İbrahim Hakkı | TAN, Özcan

Günümüzde, karşılaşılan bazı karmaşık mühendislik problemlerinin çözümünde matematik tabanlı deterministik yöntemler yetersiz kalabilmektedir. Bu tür durumlarda daha kısa sürede güvenilir sonuçlara ulaşmak için sezgisel optimizasyon yöntemleri kullanılmaktadır. Harmoni arama algoritması, son zamanlarda geliştirilen bir sezgisel optimizasyon yöntemidir. Bu algoritma, müzik icrası sırasında en iyi harmoniyi bulma prensibine dayanmaktadır. Harmoni arama algoritması, gradyan arama yerine rastgele aramayı kullanır. Yöntemde tasarım değişkenleri için herhangi bir başlangıç değerine ihtiyaç duyulmaz. ...Daha fazlası

Konferans Bildirisi 2015 6. Geoteknik Sempozyumu 3 Görüntülenme
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Centrality dependence of inclusive J/ψ production in p-Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

We present a measurement of inclusive J/ψ production in p-Pb collisions at √sNN = 5.02TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms < −2.96) and forward (2.03 < ycms < 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms < 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction ...Daha fazlası

Diğer 2015 1 Görüntülenme
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Unsupervised Satellite Change Detection Using Particle Swarm Optimisation in Spherical Coordinates

UŞAKLI, Ali Bülent | YAVARIABDI, Amir | KUSETOĞULLARI, Hüseyin

This paper proposes a new unsupervised satellite change de- tection method, which is invariant to shadow and shading e ects. To achieve this, rstly, the RGB satellite images are transformed into spher- ical colour space to remove illumination artifacts. Then, a new unsuper- vised change detection is used. The resultant optimal binary change mask is obtained by minimisation a mean square error based cost function us- ing Binary Particle Swarm Optimisation (BPSO). The proposed method is compared with three other satellite change detection methods and the results demonstrate that our method provi ...Daha fazlası

Konferans Bildirisi 2015 5 Görüntülenme
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Multiplicity dependence of charged pion, kaon, and (anti)proton production at large transverse momentum in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The production of charged pions, kaons and (anti)protons has been measured at mid-rapidity (−0.5 < y < 0) in p–Pb collisions at √sNN = 5.02 TeV using the ALICE detector at the LHC. Exploiting particle identification capabilities at high transverse momentum (pT), the previously published pT spectra have been extended to include measurements up to 20 GeV/c for seven event multiplicity classes. The pT spectra for pp collisions at √s = 7 TeV, needed to interpolate a pp reference spectrum, have also been extended up to 20 GeV/c to measure the nuclear modification factor (RpPb) in non-single diffrac ...Daha fazlası

Diğer 2015 6 Görüntülenme
Erişime Açık

Elliptic flow of identified hadrons in Pb-Pb collisions at 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The elliptic flow coefficient (v2) of identified particles in Pb-Pb collisions at √sNN = 2.76 TeV was measured with the ALICE detector at the Large Hadron Collider (LHC). The results were obtained with the Scalar Product method, a two-particle corre- lation technique, using a pseudo-rapidity gap of |∆η| > 0.9 between the identified hadron under study and the reference particles. The v2 is reported for π±, K±, K0S, p+p, φ, Λ+Λ, Ξ−+Ξ+ and Ω−+Ω+ in several collision centralities. In the low transverse momentum (pT) region, pT < 3GeV/c, v2(pT) exhibits a particle mass dependence consistent with el ...Daha fazlası

Makale 2015 3 Görüntülenme
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Measurement of dijet kT in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

A measurement of dijet correlations in p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector is presented. Jets are reconstructed from charged particles measured in the central tracking detectors and neutral energy deposited in the electromagnetic calorimeter. The transverse momentum of the full jet (clustered from charged and neutral constituents) and charged jet (clustered from charged particles only) is corrected event-by-event for the contribution of the underlying event, while corrections for underlying event fluctuations and finite detector resolution are applied on an inclusive bas ...Daha fazlası

Makale 2015 2 Görüntülenme
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Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at √sNN = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The nuclear modification factor, RAA, of the prompt charmed mesons D0, D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy √sNN = 2.76 TeV in two transverse momentum intervals, 5 < pT < 8GeV/c and 8 < pT < 16GeV/c, and in six collision centrality classes. The RAA shows a maximum suppression of a factor of 5–6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the RAA of non-prompt J/ψ from B meson decays, measured ...Daha fazlası

Makale 2015 1 Görüntülenme
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Decode-and-forward relaying based on orthogonal complementary codes

KIZILIRMAK, Refik Çağlar

In this note, we propose a full-duplex decode-and-forward cooperative diversity scheme based on code division with orthogonal complementary codes. We consider a simple case in which a single user is assisted by a single relay to achieve cooperative diversity. When the cooperation is full-duplex, the operational delay of the relay makes the channel asynchronous and this may cause multiple-access interference (MAI) between the user and relay. The orthogonal complementary codes have perfect autocorrelation and cross-correlation properties that provide MAI-free operation in asynchronous channels. ...Daha fazlası

Makale 2015 1 Görüntülenme
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Frequency and impedance reconfigurable antennas for terahertz photomixer

ÜNLÜ, Mehmet | YILMAZ, Adem | YILMAZ, Cihat

We present, for the first time, the design of two antennas for the terahertz photomixers that have reconfigurable operation frequency or reconfigurable input impedance as an alternative to the state-of-the-art high-impedance, narrow band or low-impedance, wide-band antennas. Both antennas have folded-dipole structures, which inherently have high radiation resistances, and the dimensions of the antennas are modified in the horizontal and vertical dimensions by means of ideal switches, changing the operation frequency of the antenna or the input impedance of the antenna at a given operation freq ...Daha fazlası

Konferans Bildirisi 2015 3 Görüntülenme
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Felçli Hastalar için EOG Tabanlı İletişim

UŞAKLI, Ali Bülent

Bu çalışmada etkin ve kolay iletişim kanalı olarak elektrookülogram (EOG) sinyallerinin kullanılması önerilmekte ve bu konuda özgün tasarım olarak geliştirilen sistemler tanıtılmıştır. Geliştirilen sistemlerden alınan sinyallerin sınıflandırma başarımı ve motor tepke ile karşılaştırılması yapılmıştır.

Konferans Bildirisi 2015 Gülhane Askeri Tıp Akademisi 12 Görüntülenme
Erişime Açık

Centrality dependence of particle production in p–Pb collisions at √sNN= 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

We report measurements of the primary charged-particle pseudorapidity density and transverse momentum distributions in p-Pb collisions at sNN=5.02TeV and investigate their correlation with experimental observables sensitive to the centrality of the collision. Centrality classes are defined by using different event-activity estimators, i.e., charged-particle multiplicities measured in three different pseudorapidity regions as well as the energy measured at beam rapidity (zero degree). The procedures to determine the centrality, quantified by the number of participants (Npart) or the number of n ...Daha fazlası

Makale 2015 American Physical Society 3 Görüntülenme
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