Now showing items 1-20 of 3812

    • A 500 MHz carbon nanotube transistor oscillator 

      Pesetski, A. A.; Baumgardner, J. E.; Krishnaswamy, S. V.; Zhang, H.; Adam, J. D.; Kocabaş, Coşkun; Banks, T.; Rogers, J. A. (American Institute of Physics, 2008-09)
      Operation of a carbon nanotube field effect transistor (FET) oscillator at a record frequency of 500 MHz is described. The FET was fabricated using a large parallel array of single-walled nanotubes grown by chemical vapor ...
    • Alignment controlled growth of single-walled carbon nanotubes on quartz substrates 

      Xiao, J.; Dunham, S.; Liu, P.; Zhang, Y.; Kocabaş, Coşkun; Moh, L.; Huang, Y.; Hwang, K. -C.; Lu, C.; Huang, W.; Rogers, J. A. (American Chemical Society, 2009-09-11)
      Single-walled carbon nanotubes (SWNTs) possess extraordinary electrical properties, with many possible applications in electronics. Dense, horizonally aligned arrays of linearly configured SWNTs represent perhaps the most ...
    • High-frequency performance ofsSubmicrometer transistors that use aligned arrays of single-walled carbon nanotubes 

      Kocabaş, Coşkun; Dunham, S.; Cao, Q.; Cimino, K.; Ho, X.; Kim, H.-S.; Dawson, D.; Payne, J.; Stuenkel, M.; Zhang, H.; Banks, T.; Feng, M.; Rotkin, S. V.; Rogers, J. A. (American Chemical Society, 2009-04-08)
      The unique electronic properties of single-walled carbon nanotubes (SWNTs) make them promising candidates for next generation electronics, particularly in systems that demand high frequency (e.g., radio frequency, RF) ...
    • Future outlook 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this final Chapter, we present a future perspective for the light source design. We discuss the existing problems and briefly introduce new material systems and device architectures that can overcome the current issues.
    • How to design quality light sources with discrete color components 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      White light sources using discrete emitters require careful design and optimization. The first step of the design should be determining the intended use of the light source so that application specific requirements can be ...
    • Common white light sources 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this Chapter we describe the features of common light sources. We first present the spectral features of the sun and discuss its colorimetric properties. Next, we summarize the properties of traditional light sources ...
    • Metrics for light source design 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this part of this brief, we summarize the metrics that need to be considered for designing light sources. We start with metrics on the shade of color and then continue with color rendering and photometry.
    • Colorimetry for LED lighting 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this Chapter, we explain the basics of colorimetry and introduce the colorimetric tools useful for designing light sources.
    • Light stimulus and human eye 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this Chapter, we summarize the structure of the human eye and introduce the sensitivity functions of various photoreceptors and present the visual regimes and corresponding eye sensitivity functions.
    • Glycosylated porphyrin-cucurbituril conjugate for photodynamic inactivation of bacteria and doxorubicin carriage for anticancer drug delivery 

      Özkan, Melis; Keser, Yağmur; Koç, Ahmet; Tuncel, Dönüş (World Scientific Publishing, 2019-10)
      Porphyrin derivatives are highly attractive in the construction of multifunctional molecular platforms with interesting properties and applications. In this regard, we report here the use of a multifunctional porphyrin-based ...
    • Complete intersection monomial curves and the Cohen—Macaulayness of their tangent cones 

      Katsabekis, Anargyros (World Scientific Publishing, 2019)
      Let C(n) be a complete intersection monomial curve in the 4-dimensional affine space. In this paper we study the complete intersection property of the monomial curve C(n + wv), where w > 0 is an integer and v ∈ ℕ4. In ...
    • Two-dimensional Bose polaron using diffusion Monte Carlo method 

      Akatürk, Emre; Tanatar, Bilal (World Scientific Publishing, 2019-09)
      We investigate the properties of a mobile impurity immersed in a two-dimensional (2D) Bose gas at zero temperature using quantum Monte Carlo (QMC) methods. The repulsive boson–boson and impurity-boson interactions are ...
    • Nonequilibrium electron relaxation in graphene 

      Rani, Luxmi; Bhalla, P.; Singh, N. (World Scientific Publishing, 2019)
      We apply memory function formalism to investigate nonequilibrium electron relaxation in graphene. Within the premises of two-temperature model (TTM), explicit expressions of the imaginary part of the memory function or ...
    • Black hole solutions and Euler equation in Rastall and generalized Rastall theories of gravity 

      Moradpour, H.; Heydarzade, Yaghoub; Corda, C.; Ziaie, A. H.; Ghaffari, S. (World Scientific Publishing, 2019)
      Focusing on the special case of generalized Rastall theory, as a subclass of the non-minimal curvature-matter coupling theories in which the field equations are mathematically similar to the Einstein field equations in the ...
    • Sequential warped products: curvature and conformal vector fields 

      Chand De, Uday; Shenawy, S.; Ünal, Bülent (University of Nis, 2019)
      In this note, we introduce a new type of warped products called as sequential warped products to cover a wider variety of exact solutions to Einstein’s field equation. First, we study the geometry of sequential warped ...
    • The impact of JAK/STAT inhibitor ruxolitinib on the genesis of lymphoproliferative diseases 

      Türk, Can; Okay, M.; Türk, S.; Temirci, Elif Sena; Javad, Osama; Aksu, S.; Sayınalp, N.; Haznedaroğlu, İ. C. (TÜBİTAK, 2019-04)
      Background/aim: Ruxolitinib, a JAK/STAT signaling pathway inhibitor targeted drug, has been approved for the controlling of disease symptoms and splenomegaly in patients with myeloproliferative neoplastic diseases. Recently, ...
    • Longest increasing subsequences in involutions avoiding patterns of length three 

      Mansour, T.; Yıldırım, Gökhan (TÜBİTAK, 2019-07)
      We study the longest increasing subsequences in random involutions that avoid the patterns of length three under the uniform probability distribution. We determine the exact and asymptotic formulas for the average length ...
    • On the Cohen–Macaulayness of tangent cones of monomial curves in A 4 (K) 

      Arslan, F.; Katsabekis, Anargyros; Nalbandıyan, M. (TÜBİTAK, 2019-05)
      In this paper we give necessary and sufficient conditions for the Cohen–Macaulayness of the tangent cone of a monomial curve in 4-dimensional affine space. We particularly study the case where C is a Gorenstein noncomplete ...
    • Effects of the AlN nucleation layer thickness on the crystal structures of an AlN epilayer grown on the 6H-SiC substrate 

      Arslan, Engin; Öztürk, M. K.; Özçelik, S.; Özbay, Ekmel (Taylor & Francis, 2019-04-08)
      The influence of the LT-AlN(NL) growth times on the mosaic structure parameters of the AlN layer grown on the LT-AlN(NL)/6H-SiC structures as well as the dislocation densities and the strain behaviours in the AlN epilayers ...
    • Stable monolayer of the RuO2 structure by the Peierls distortion 

      Ersan, Fatih; Özaydın, H. D.; Üzengi Aktürk, O. (Taylor & Francis, 2019-10-29)
      In this paper, we presented a stable two-dimensional ruthenium dioxide monolayer by using first-principles calculations within density functional theory. In contrast to ordinary hexagonal and octahedral structures of metal ...