Toplam kayıt 302, listelenen: 221-240

    • Investigation of the effects of IMPULS Maturity model with a simulation-based analysis 

      Altan, Cansu; Başarır, Ali Cem; Aydemir, Erdal (10th International Symposium onIntelligent Manufacturing and Service Systems, 2019)
      Industry 4.0 enables to produce products that are complex in production in a short time and in high quality by entering factories and making our production environments smarter. Industry 4.0 is defined as the digitization ...
    • A cost-effective framework for the optimal placement of drones in smart cities 

      Ülgen, Semail; Al-Turjman, Fadi; Daboul, Reda; Zahmatkesh, Hadi (CRC Press, 2019)
      This chapter presents the existing studies related to the use of unmanned aerial vehicles in the internet of things era. It outlines problem description and the proposed framework. The chapter discusses the performance ...
    • Investigation of diamagnetic levitation for dynamic MEMS devices 

      Beyaz, Mustafa İlker (4th International Mediterranean Science and Engineering Congress (IMSEC 2019), 2019)
      The mechanical performance and lifetime of dynamic MEMS (micro electro mechanical systems) devices such as micropumps, micromotors, and micropositioners heavily rely on the bearing mechanism that enables motion per applied ...
    • Non-planar drive-sense coil structure for inductive MEMS microphones 

      Beyaz, Mustafa İlker (International Symposium on Advanced Engineering Technologies, 2019)
      MEMS technology offers major advantages for the development of microphones including a small footprint, low power consumption, high sound sensitivity and bandwidth. Capacitive, piezoelectric, and inductive microphones have ...
    • A micro-scale biosensor for the detection of bacillus stearothermophilus spore germination 

      Beyaz, Mustafa İlker; Sekkouti, Aissa (International Conference on Engineering Technologies (ICENTE'19), 2019)
      Germination of Bacillus Stearothermophilus bacterial spores is being used as a marker in sterilization monitoring systems to verify the success of sterilization processes in healthcare facilities. Such systems mainly employ ...
    • Structure of conflict graphs in constraint alignment problems and algorithms 

      Alkan, Ferhat; Bıyıkoğlu, Türker; Demange, Marc; Erten, Cesim (Discrete Mathematics Theoretical Computer Science, 2019)
      We consider the constrained graph alignment problem which has applications in biological network analysis. Given two input graphs G1 = (V1, E1), G2 = (V2, E2), two vertices u1, v1 of G1 paired respectively to two vertices ...
    • Graph-theoretical comparison of normal and tumor networks in identifying BRCA genes 

      Erten, Cesim; Dopazo, Joaquin (BMC Systems Biology, 2017)
      Background: Identification of driver genes related to certain types of cancer is an important research topic. Several systems biology approaches have been suggested, in particular for the identification of breast cancer ...
    • On conformal curves in 2-dimensional de sitter space 

      Şimşek, Hakan; Özdemir, Mustafa (Advances in Applied Clifford Algebras, 2016)
      In this paper, we examine the pseudo-spherical curves, which are equivalent to each other under the conformal maps preserving a fixed point in the de Sitter 2-space, by using the Clifford algebra Cl 2,1. Also, we find the ...
    • Some results on p-shape curvatures of non-lightlike space curves 

      Şimşek, Hakan; Özdemir, Mustafa (International Electronic Journal of Geometry, 2018)
      In this paper, we obtain some findings for a non-null curve parameterized by spherical arc length. We investigate the relationship between a non-null curve with p-shape curvatures and pseudospherical curves on S21 and ...
    • Shape curvatures of the Lorentzian plane curves 

      Şimşek, Hakan; Özdemir, Mustafa (Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics, 2017)
      In this paper, we examine the Lorentzian similar plane curvesusing the hyperbolic structure and spherical arc length parameter. We classifyall self-similar Lorentzian plane curves and give formulas for pseudo shapecurvatures ...
    • Bäcklund’s theorem for n dimensional lorentzian submanifold in the minkowski space 𝔼21𝑛−1 

      Şimşek, Hakan; Özdemir, Mustafa (Results in Mathematics, 2016)
      In this paper, Bäcklund’s Theorem is introduced on the Lorentzian n-submanifold of the Minkowski space 𝔼2𝑛−11 by using the method of moving frames. Also, we prove the Integrability Theorem for the Lorentzian n-submanifold ...
    • Similar and self-similar curves in minkowski n-space 

      Şimşek, Hakan; Özdemir, Mustafa (Bulletin of Korean Mathematical Society, 2015)
      In this paper, we investigate the similarity transformations in the Minkowski n-space. We study the geometric invariants of nonnull curves under the similarity transformations. Besides, we extend the fundamental theorem ...
    • Generating hyperbolical rotation matrix for a given hyperboloid 

      Şimşek, Hakan; Özdemir, Mustafa (Linear Algebra and Its Applications, 2016)
      Hyperbolic rotation is hyperbolically the motion of a smooth object on general hyperboloids given by −a1x2+a2y2+a3z2=±λ, λ ∈R+. In this paper, we investigate the hyperbolical rotation matrices in order to get the motion ...
    • On the eigenvalues and eigenvectors of a lorentzian rotation matrix by using split quaternions 

      Özdemir, Mustafa; Erdoğdu, Melek; Şimşek, Hakan (Advances in Applied Clifford Algebras, 2014)
      In this paper, we examine eigenvalue problem of a rotation matrix in Minkowski 3 space by using split quaternions. We express the eigenvalues and the eigenvectors of a rotation matrix in term of the coefficients of the ...
    • On focal curves of null Cartan curves 

      Şimşek, Hakan (Turkish Journal of Mathematics, 2017)
      The focal curve, which is determined as the locus of centers of osculating pseudo-spheres of a null Cartan curve, is investigated in Minkowski (n+2)-space Mn+2. Moreover, a curve called acceleration focal curve of a null ...
    • Rotations on a lightcone in minkowski 3-Space 

      Şimşek, Hakan; Özdemir, Mustafa (Advances in Applied Clifford Algebras, Springer, 2017)
      In this paper the generalization of the rotations on any lightcone in Minkowski 3-space ℝ1,2𝑔 is given. The rotation motion on the lightcone is examined by means of a bilinear form and Lorentzian notions. We use the ...
    • Optimization of hydrothermal synthesis of Ce3+ co-doped NaYF4, Yb3+, Er3+upconversion nanoparticles and investigation of their size, morphology, and phase transitions. 

      Demirel Topel, Seda (ICENS, 2019)
      In this study, the synthesis of water-soluble polyethyleneimine (PEI) modified UCNPs which were prepared by a hydrothermal method have been reported. The resultant UCNPs were small size and hexagonal β-phase structure ...
    • Multifunctional magnetic nanocarrier: synthesis, characterization and pH-responsive doxorubicin release profile 

      Demirel Topel, Seda (2019)
      In this study, carboxymethyl cellulose (CMC) functionalized superparamagnetic iron oxide nanoparticles (SPIONs) have been synthesized as a novel theranostic platform which enables magnetic resonance (MR) imaging-guided and ...
    • Evaluation of reinforcing bars ratio effects on SCC beam-column joint performance 

      Farrokh Ghatte, Hamid (Uludağ University Journal of The Faculty of Engineering, 2019)
      Beam-column joints require a high ductility during the unexpected loadings that necessitate the need for ductile concrete in such unprotected locations. Alternatively, self-compacting concrete (SCC) is a sort of concrete ...
    • Seismic retrofit of full-scale substandard extended rectangular RC columns through CFRP jacketing: test results and design recommendations 

      Farrokh Ghatte, Hamid; Comert, Mustafa; Demir, Cem; Akbaba, Mustafa; Ilki, Alper (Journal of Composites for Construction, 2019)
      Brittle behavior of substandard columns during earthquakes is among the most common reasons of structural failures. Because capacity design principles and ductile detailing concepts have not been properly adopted during ...