Now showing items 13898-13917 of 25121

    • Low-voltage small-size double-arm MEMS actuator 

      Biyikli, N.; Damgaci, Y.; Cetiner, B.A. (2009)
      The fabrication and characterisation of a double-arm cantilever-type metallic DC-contact MEMS actuator with low pull-down voltage are reported. Bi-layer TiW cantilevers with an internal stress gradient were fabricated using ...
    • Lower bounds on the error probability of turbo codes 

      Özçelikkale, Ayça; Duman, Tolga M. (IEEE, 2014-06-07)
      We present lower bounds on the error probability of turbo codes under maximum likelihood (ML) decoding. We focus on additive white Gaussian noise (AWGN) channels, and consider both ensembles of codes with uniform interleaving ...
    • Lower bounds to moments of list size 

      Arıkan, Erdal (IEEE, 1990)
      Summary form only given. The list-size random variable L for a block code is defined as the number of incorrect messages that appear to a maximum-likelihood decoder to be at least as likely as the true message. Lower bounds ...
    • Lower connectivity of tumor coexpression networks is not specific to cancer 

      Dalgıç, E.; Konu, Özlen; Safi Öz, Z.; Chan, C. (IOP, 2019-05)
      Global level network analysis of molecular links is necessary for systems level view of complex diseases like cancer. Using genome-wide expression datasets, we constructed and compared gene co-expression based specific ...
    • Lower degree bounds for modular vector invariants 

      Madran, U. (American Mathematical Society, 2007)
      Let G be a finite group of order divisible by a prime p acting on an F vector space V, where F is the field with p elements and dimF V = n. Consider the diagonal action of G on m copies of V. This note sharpens a lower ...
    • Lower hedging of American contingent claims with minimal surplus risk in finite-state financial markets by mixed-integer linear programming 

      Pınar, M. Ç. (2014)
      The lower hedging problem with a minimal expected surplus risk criterion in incomplete markets is studied for American claims in finite state financial markets. It is shown that the lower hedging problem with linear expected ...
    • Lozan’la sınır ötesinde kalan Irak’lı bir Türkmen gencinin Türkiye’deki serüveni (1980-1990) 

      Akkaya, Merve; Albayrak, Onur; Nakip, Aybala; Onur, Gizem; Yeter, Tuğçe (Bilkent University, 2015)
    • Lösemili Çocuklar Vakfı'nın tarihi 

      Özkaya, İpek; Cansabuncu, Hazal; Bakış, Gamze; Görmez, Dilan; Görmez, Dilara (Bilkent University, 2014)
    • LQ optimal design at finitely many frequencies 

      Köroğlu, H.; Morgül, Ö. (Institute of Electrical and Electronics Engineers, 1998)
      The notion of Linear Quadratic (LQ) optimality at a single frequency is developed in single-input single-output (SISO) linear time-invariant (LTI) system/quasi-stationary signal framework and the optimality condition is ...
    • LSPR enhanced MSM UV photodetectors 

      Butun, S.; Cinel, N. A.; Özbay, Ekmel (IOP Publishing, 2012-10-18)
      We fabricated localized surface plasmon resonance enhanced UV photodetectors on MOCVD grown semi-insulating GaN. Plasmonic resonance in the UV region was attained using 36nm diameter Al nanoparticles. Extinction spectra ...
    • Lucretia and the impossibility of female republicanism in Margaret Cavendish's sociable letters 

      Bergès, S. (Blackwell Publishing, 2018)
      Margaret Cavendish is known for her personal allegiance to monarchy in England. This is reflected in her writings; as Hobbes did, she tended to criticize severely any attempt at rebellion and did not think England could ...
    • The ludic production of space: gamification and spatial experience 

      Murat, Fatma Nur (Bilkent University, 2019-08)
      This thesis traces the changes in the spatiality of play with a focus on conceptual and structural transformations play has undergone in the modern times. These transformations lead to the dissolution of the boundaries ...
    • Lumbar curvature: a previously undiscovered standard of attractiveness 

      Lewis, D. M. G.; Russell, E. M.; Al-Shawaf, L.; Buss, D. M. (Elsevier, 2015)
      This paper reports independent studies supporting the proposal that human standards of attractiveness reflect the output of psychological adaptations to detect fitness-relevant traits. We tested novel a priori hypotheses ...
    • Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields 

      Gurinovich, L. I.; Lutich, A. A.; Stupak, A. P.; Prislopsky, S. Y.; Rusakov, E. K.; Artemyev, M. V.; Gaponenko, S. V.; Demir, Hilmi Volkan (Pleiades Publishing, 2009)
      It is found that the absorption and luminescence spectra of CdSe nanocrystals and nanorods depend on the external electric field. It is shown that the external electric field quenches the P-polarized photoluminescence of ...
    • Luminescence of Gold Nanorod-Quantum Dots Complexes 

      Trotsiuk, L. L.; Muravitskaya, A. O.; Kulakovich, O. S.; Gaponenko, S. V.; Demir, Hilmi Volkan (World Scientific Publishing Company, 2019)
      The photoluminescence of gold nanorod-quantum dots complexes was investigated in order to find optimal conditions for the luminescence enhancing. The number of quantum dots and polyelectrolyte layers on the gold nanorod ...
    • Lumpability of linear evolution equations in banach spaces 

      Atay, F. M.; Roncoroni, L. (American Institute of Mathematical Sciences, 2017)
      We analyze the lumpability of linear systems on Banach spaces, namely, the possibility of projecting the dynamics by a linear reduction opera-tor onto a smaller state space in which a self-contained dynamical description ...
    • Lumpable continuous-time stochastic automata networks 

      Gusak, O.; Dayar, T.; Fourneau, J. M. (Elsevier, 2003-07-16)
      The generator matrix of a continuous-time stochastic automata network (SAN) is a sum of tensor products of smaller matrices, which may have entries that are functions of the global state space. This paper specifies easy ...
    • Lumped element model of single CMUT in collapsed mode 

      Aydoğdu, Elif; Ozgurluk, A.; Oguz H.K.; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2013)
      In this study, an equivalent electrical circuit model for a single circular CMUT in both uncollapsed and collapsed modes is obtained. In order to model the collapsed mode mechanics, the governing differential equation is ...
    • Lumped element modeling of circular CMUT in collopsed mode 

      Aydoğdu, Elif (Bilkent University, 2014)
      Capacitive micromachined ultrasonic transducer is a microelectromechanical device, which serves as an acoustic signal source or sensor, in a variety of applications including medical ultrasound imaging, ultrasound therapy, ...
    • Lumped element modeling of CMUT arrays in collapsed mode 

      Aydoğdu, Elif; Özgürlük, A.; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2014-09)
      This study focuses on modeling collapsed modeoperation of CMUT arrays, and obtaining a small signal lumped element model for collapsed mode operation. Having the large signal model for single CMUT from previous studies, ...