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Bulunan: 35 Adet 0.001 sn
Yayın Tarihi : 2015 ✕Koleksiyon : Mühendislik ve Doğa ... ✕
Koleksiyon [7]
İlgili Araştırmacılar [11]
Ambargo Durumu [1]
Tam Metin [2]
Yayın Türü [3]
Yazar/lar [20]
Atıf Dizini [3]
Konu Başlıkları [20]
Yayıncı [7]
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

Image Quality Assessment Metrics Combining Structural Similarity and Image Fidelity with Visual Attention

MENDİ, Engin

Image quality assessment has a great importance in several image processing applications. Recently, various objective image quality metrics have been proposed in order to predict human visual perception. In this paper, novel image quality metrics, S-SSIM (saliency-based structural similarity index) and S-VIF (saliency-based visual information fidelity), are proposed based on a visual attention model extracting frequency-tuned salient region. Saliency maps are produced from the color and luminance features of the image. SSIM and VIF in pixel domain are modified by the weighting factors of the s ...Daha fazlası

Makale 2015 1 Görüntülenme
Erişime Açık

Charged jet cross sections and properties in proton-proton collisions at root s=7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in pffiffi minimum bias proton-proton collisions at center-of-mass energy s 1⁄4 7 TeV using the ALICE detector at the LHC. Jets are reconstructed from charged particle momenta in the midrapidity region using the sequential recombination kT and anti-kT as well as the SISCone jet finding algorithms with several resolution parameters in the range R 1⁄4 0.2–0.6. Differential jet production cross sections measured with the three jet finders are in agreement in the transverse momentum (p ) inter ...Daha fazlası

Makale 2015 7 Görüntülenme
Erişime Açık

K∗(892)0 and φ(1020) production in Pb-Pb collisions at √sNN = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The yields of the K∗(892)0 and φ(1020) resonances are measured in Pb-Pb collisions at √sNN = 2.76 TeV through their hadronic decays using the ALICE detector. The measurements are performed in multiple centrality intervals at mid-rapidity (|y| < 0.5) in the transverse-momentum ranges 0.3 < pT < 5 GeV/c for the K∗(892)0 and 0.5 < pT < 5 GeV/c for the φ(1020). The yields of K∗(892)0 are suppressed in central Pb-Pb collisions with respect to pp and peripheral Pb-Pb collisions (perhaps due to rescattering of its decay products in the hadronic medium), while the longer-lived φ(1020) meson is not sup ...Daha fazlası

Makale 2015 5 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
Erişime Açık

Precision measurement of the mass difference between light nuclei and anti-nuclei

KARASU UYSAL, Ayben | ALICE Collaboration

The measurement of the mass differences for systems bound by the strong force has reached a very high precision with protons and anti-protons1,2. The extension of such measure- ment from (anti-)baryons to (anti-)nuclei allows one to probe any difference in the interactions between nucleons and anti- nucleons encoded in the (anti-)nuclei masses. This force is a remnant of the underlying strong interaction among quarks and gluons and can be described by effective theories3, but cannot yet be directly derived from quantum chromodynamics. Here we report a measurement of the difference between the ...Daha fazlası

Makale 2015 7 Görüntülenme
Erişime Açık

Inclusive photon production at forward rapidities in proton–proton collisions at √s = 0.9, 2.76 and 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The multiplicity and pseudorapidity distribu- tions of inclusive photons have been measured at forward rapidities (2.3 < η < 3.9) in proton–proton collisions at three center-of-mass energies, √s = 0.9, 2.76 and 7 TeV using the ALICE detector. It is observed that the increase in the average photon multiplicity as a function of beam energy is compatible with both a logarithmic and a power-law dependence. The relative increase in average photon multi- plicity produced in inelastic pp collisions at 2.76 and 7 TeV center-of-mass energies with respect to 0.9 TeV are 37.2 ± 0.3% (stat) ± 8.8% (sys) a ...Daha fazlası

Makale 2015 2 Görüntülenme
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Measurement of jet suppression in central Pb–Pb collisions at 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The transverse momentum (pT) spectrum and nuclear modification factor (RAA) of reconstructed jets in 0–10% and 10–30% central Pb–Pb collisions at √sNN = 2.76 TeV were measured. Jets were reconstructed using the anti-kT jet algorithm with a resolution parameter of R = 0.2 from charged and neutral particles, utilizing the ALICE tracking detectors and Electromagnetic Calorimeter (EMCal). The jet pT spectra are reported in the pseudorapidity interval of |ηjet| < 0.5 for 40 < pT, jet < 120 GeV/c in 0–10% and for 30 < pT, jet < 100 GeV/c in 10–30% collisions. Reconstructed jets were required to cont ...Daha fazlası

Makale 2015 4 Görüntülenme
Erişime Açık

Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The strength of forward-backward (FB) multiplicity correlations is measured √ s = 0.9, 2.76 and 7TeV. The measurement is performed in the central pseudorapidity region (|η| < 0.8) for the transverse momentum pT > 0.3GeV/c. Two separate pseudorapidity windows of width (δη) ranging from 0.2 to 0.8 are chosen symmetrically around η = 0. The multiplicity correlation strength (bcorr) is studied as a function of the pseudorapidity gap (ηgap) between the two windows as well as the width of these windows. The correlation strength is found to decrease with increasing ηgap and shows a non-linear increas ...Daha fazlası

Makale 2015 2 Görüntülenme
Erişime Açık

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
Erişime Açık

Measurement of electrons from semileptonic heavy-flavor hadron decays in p p collisions at √ s = 2.76     TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The pT-differential production cross section of electrons from semileptonic decays of heavy-flavor hadrons has been measured at midrapidity in proton-proton collisions at s 1⁄4 2.76 TeV in the transverse momentum range 0.5 < pT < 12 GeV=c with the ALICE detector at the LHC. The analysis was performed using minimum bias events and events triggered by the electromagnetic calorimeter. Predictions from perturbative QCD calculations agree with the data within the theoretical and experimental uncertainties.

Makale 2015 6 Görüntülenme
Erişime Açık

Production of Σ(1385)± and Ξ(1530)0 in proton-proton collisions at s√= 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The production of the strange and double-strange baryon resonances (Σ(1385)±, Ξ(1530)0) has been measured at mid-rapidity (|y|

Makale 2015 4 Görüntülenme
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