Now showing items 93-112 of 14788

    • Ab initio modeling of elastic and optical properties of Sb and Bi sesquioxides 

      Koc, H.; Akhundov, C. G.; Mamedov, Amirullah M.; Özbay, Ekmel (Institute of Physics Publishing, 2018)
      First-principle calculations performed the structural, mechanical, electronic, and optical properties of Sb2O3 and Bi2O3 compounds in monoclinic (claudetite and α-Bi2O3) and orthorhombic (valentinite) structures. Local ...
    • Ab initio study of electronic properties of armchair graphene nanoribbons passivated with heavy metal elements 

      Narin, P.; Abbas, J. M.; Atmaca, G.; Kutlu, E.; Lisesivdin, S. B.; Özbay, Ekmel (Elsevier, 2019)
      In this study, electronic properties of graphene nanoribbons with armchair edges (AGNRs) have been investigated with Density Functional Theory (DFT). Effects of heavy metal (HM) elements, including Zinc (Zn), Cadmium (Cd) ...
    • Ab initio study of hydrogenic effective mass impurities in Si nanowires 

      Peelaers, H.; Durgun, Engin; Partoens, B.; Bilc, D. I.; Ghosez, P.; Van De Walle C. G.; Peeters, F. M. (Institute of Physics Publishing, 2017-01)
      The effect of B and P dopants on the band structure of Si nanowires is studied using electronic structure calculations based on density functional theory. At low concentrations a dispersionless band is formed, clearly ...
    • Ab initio study of neutral ( TiO2 ) n clusters and their interactions with water and transition metal atoms 

      Çakır, D.; Gülseren, O. (IOP Publishing, 2012-07-04)
      We have systematically investigated the growth behavior and stability of small stoichiometric (TiO2)n (n = 1–10) clusters as well as their structural, electronic and magnetic properties by using the first-principles plane ...
    • Ab initio study of Ru-terminated and Ru-doped armchair graphene nanoribbons 

      Sarikavak-Lisesivdin, B.; Lisesivdin, S. B.; Özbay, Ekmel (Taylor and Francis, 2012)
      We investigate the effects of ruthenium (Ru) termination and Ru doping on the electronic properties of armchair graphene nanoribbons (AGNRs) using first-principles methods. The electronic band structures, geometries, density ...
    • Ab initio temperature dependent studies of the homoepitaxial growth on Si(0 0 1) surface 

      Dağ, S.; Çıracı, Salim; Kılıç, Ç.; Fong, C. Y. (2001)
      We performed ab initio zero temperature and finite temperature molecular dynamics calculations to investigate the homoepitaxial growth on the Si(0 0 1) surface. How do the deposited atoms (adatoms) form addimers and how ...
    • AB- Türkiye ilişkileri sürecinde Türk şeker sektörü simülasyon sonuçları 

      Aytüre, S.; Demir, Nazmi (Sanayi ve Teknoloji Bakanlığı Sanayi ve Verimlilik Genel Müdürlüğü, 2008)
      Bu araştırmada, dokuz bağıntılı bir ekonometrik model yardımı ile alternatif senaryolar altında, Türkiye'nin şeker arz-talep dengeleri simüle edilmektedir. Araştırmanın ortaya çıkardığı en önemli bulgu Türkiye'nin AB'ye ...
    • Ab-initio atomic scale study of nearly frictionless surfaces 

      Çıracı, Salim; Yıldırım, T.; Dağ, S.; Gülseren, Oğuz (Elsevier, 2007)
      This chapter presents a comparative analysis of the dry sliding friction between the atomically flat and commensurate surfaces of two different systems: between two diamond (001) surfaces and between two BN (001) surfaces. ...
    • Ab-initio electron transport calculations of carbon based string structures 

      Tongay, S.; Senger, R. T.; Dag, S.; Çıracı, Salim (American Physical Society, 2004)
      The new stable structures of carbon-based strings and their unusual electronic transport properties were discussed. Total energy and electronic structure calculations using first principles pseudopotential plane wave method ...
    • Abazin 

      Karasar, Hasan Ali (ABC-CLIO, 2011)
    • The abbots of bordesley: a provisional list 

      Thornton, D. E. (Publicacions de l' Abadia de Montserrat, 2001)
    • ABC: a double-conversion compiler/solver for nanoscience calculus 

      Kulik, Igor O. (Computational Publications, 2003)
      "CompLab" ("Compiler Laboratory") or "ABC" ("Advanced Basic-C") is a double conversion compiler working in two parallel regimes (A and B) one of which is similar to that of MATLAB while the other is a professional compilation ...
    • Aberrant cerebral network topology and mild cognitive impairment in early Parkinson’s disease 

      Pereira, J. B.; Aarsland, D.; Ginestet, C. E.; Lebedev, A. V.; Wahlund, L. O.; Simmons, A.; Volpe, G.; Westman, E. (John Wiley & Sons, Inc., 2015-05-06)
      The aim of this study was to assess whether mild cognitive impairment (MCI) is associatedwith disruption in large-scale structural networks in newly diagnosed, drug-na€ıve patients with Parkin-son’s disease (PD). Graph ...
    • The ability to generate senescent progeny as a mechanism underlying breast cancer cell heterogeneity 

      Mumcuoğlu, Mine; Bağışlar, Sevgi; Yüzügüllü, Haluk; Alotaibi, Hani; Şentürk, Şerif; Telkoparan, Pelin; Gür-Dedeoğlu, Bala; Cingöz, Burcu; Bozkurt, B.; Tazebay, Uygar H.; Yuluğ, Işık G.; Akçalı, Kamil Can; Öztürk, Mehmet (Public Library of Science, 2010)
      Background Breast cancer is a remarkably heterogeneous disease. Luminal, basal-like, "normal-like", and ERBB2+ subgroups were identified and were shown to have different prognoses. The mechanisms underlying this heterogeneity ...
    • Ablation-cooled material removal at high speed with femtosecond pulse bursts 

      Kerse, Can; Kalaycıoğlu, Hamit; Elahi, Parviz; Akçaalan, Önder; Yavaş, S.; Aşık, M. D.; Kesim, Deniz Koray; Yavuz, Koray; Çetin, Barbaros; İlday, Fatih Ömer (OSA, 2015)
      We report exploitation of ablation cooling, a concept well-known in rocket design, to remove materials, including metals, silicon, hard and soft tissue. Exciting possibilities include ablation using sub-microjoule pulses ...
    • Ablation-cooled material removal with ultrafast bursts of pulses 

      Kerse C.; Kalaycıoğlu, H.; Elahi, P.; Çetin B.; Kesim, D. K.; Akçaalan, Ö.; Yavaş S.; Aşık, M. D.; Öktem B.; Hoogland H.; Holzwarth, R.; Ilday, F. Ö. (Nature Publishing Group, 2016)
      The use of femtosecond laser pulses allows precise and thermal-damage-free removal of material (ablation) with wide-ranging scientific, medical and industrial applications. However, its potential is limited by the low ...
    • Abnormal subcortical activity in congenital mirror movement disorder with RAD51 mutation 

      Demirayak, Pınar; Onat, Onur Emre; Gevrekci, A. Ö.; Gülsüner, S.; Uysal, H.; Bilgen, R.; Doerschner, Katja; Özçelik, Tayfun; Boyacı, Hüseyin (Turkish Society of Radiology, 2018)
      PURPOSE Congenital mirror movement disorder (CMMD) is characterized by unintended, nonsuppressible, homologous mirroring activity contralateral to the movement on the intended side of the body. In healthy controls, unilateral ...
    • About curvature, conformal metrics and warped products 

      Dobarro, F.; Ünal, B. (Institute of Physics Publishing Ltd., 2007)
      We consider the curvature of a family of warped products of two pseduo-Riemannian manifolds (B, gB) and (F, gF) furnished with metrics of the form c2gB ⊕ w2g F and, in particular, of the type w2μgB ⊕ w2gF, where c, w:B → ...
    • About individual differences in vision 

      Grzeczkowski, L.; Clarke, A. M.; Francis, G.; Mast, F. W.; Herzog, M. H. (Pergamon Press, 2017)
      In cognition, audition, and somatosensation, performance strongly correlates between different para-digms, which suggests the existence of common factors. In contrast, visual performance in seeminglyvery similar tasks, ...