Now showing items 1-6 of 6

    • Breathing detection based on the topological features of IR sensor and accelerometer signals 

      Erden, Fatih; Çetin, Ahmet Enis (IEEE, 2017)
      This paper describes a non-contact breathing detection system using a pyro-electric infrared (PIR) sensor and an accelerometer. The multi-sensor system can be used to detect the respiratory disorders. A PIR sensor is placed ...
    • Doppler effect on nanopatterning with nonlinear laser lithography 

      Yavuz, Özgün; Kara, Semih; Tokel, Onur; Pavlov, Ihor; İlday, Fatih Ömer (OSA, 2017)
      Summary form only given. Just five years after invention of the laser, laser induced periodic structures (LIPSS) had been reported. However, the structure period is not very uniform in LIPSS. Recently, with nonlinear laser ...
    • Highly stable periodic structures using nonlinear laser lithography 

      Yavuz, Oğuzhan; Pavlov, Ihor; Tokel, Onur; Ergeçen, E.; Rızaoğlu, Anıl; İlday, Fatih Ömer (IEEE, 2016)
      Nonlinear laser lithography (NLL) emerged as a novel surface structuring method allowing long-range periodic order. We present mathematical formalism for NLL, analysis of structure stability to perturbations and a way to ...
    • A novel approach for the efficient computation of 1-D and 2-D summations 

      Karabulut, E. P.; Ertürk, V. B.; Alatan, L.; Karan, S.; Alisan, B.; Aksun, M. I. (Institute of Electrical and Electronics Engineers Inc., 2016)
      A novel computational method is proposed to evaluate 1-D and 2-D summations and integrals which are relatively difficult to compute numerically. The method is based on applying a subspace algorithm to the samples of partial ...
    • Optimal sampling of multidimensional periodic band-limited signals 

      Korkmaz, Sayit (IEEE, 2005)
      In this paper, we present an algebraic description of the aliasing phenomena evident in the linear sampling process of multidimensional periodic band limited signals. Opposed to the classical Shannon sampling, periodic ...
    • Terahertz Bandpass Frequency Selective Surfaces on Glass Substrates Using a Wet Micromachining Process 

      Ramzan M.; Khan T.M.; Bolat S.; Nebioglu M.A.; Altan H.; Okyay A.K.; Topalli K. (Springer New York LLC, 2017)
      This paper presents terahertz (THz) frequency selective surfaces (FSS) implemented on glass substrate using standard microfabrication techniques. These FSS structures are designed for frequencies around 0.8 THz. A fabrication ...