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Mathematical analysis of the nonsteady flow of micropolar fluid in a thin domain
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Marko Radulović The main subject of this dissertation consists of studying the micropolar fluid model, which represents a generalization of the well--known classical Navier--Stokes model, mainly in the sense that it takes into account the microstructure of the fluid and effects such as shrinking and rotation of the particles of the fluid. Our first goal is to prove the existence and uniqueness of a generalized nonsteady micropolar Poiseuille solution in an infinite cylinder. This is achieved by decomposing...
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Mathematical modeling and numerical simulation of multiphase multicomponent flow in porous media
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Ivana Radišić Two-phase flow in porous media appears in many petroleum and environment engineering problems, like secondary and tertiary oil recovery, the disposal of radioactive waste, sequestration of \(CO_2\) etc. This thesis covers both mathematical and numerical analysis of this type of flows. Significant part of this thesis is devoted to the mathematical modeling and analysis of multiphase flows, precisely to a formulation of a two-phase, two-component model with exchange of the mass between the...
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Mathematical models of flows in porous and mixed media
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Andrej Novak This thesis consists of two parts. In the first part, nontrivial generalizations of the transport-collapse scheme are presented. The initial value problem for heterogeneous scalar conservation laws is considered and as a consequence of the analysis of the scheme a new solution concept of the initial-boundary value problem for scalar conservation laws arose. This is the most important contribution of this part of the thesis. In the both situations under the consideration the rigorous proofs...
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Matične stanice iz limfoidnoga tkiva i njihova diferencijacija
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Josipa Skelin Timus je mjesto formacije adaptivnog imunosnog sustava, gdje epitelne stanice upravljaju sazrijevanjem limfocita T. Matične stanice i progenitori nalaze se u nišama unutar tkiva odraslog organizma i sudjeluju u regeneraciji i održavanju homeostaze. Postojanje matičnih stanica koje sudjeluju u održavanju timusne strome prethodno je pokazano u odraslome mišu, no ne i u čovjeku. Cilj ovoga rada bio je u timusu ljudi pronaći matične epitelne stanice. Sekvencijskom razgradnjom tkiva...
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Measurement of W and Z pair production and search for WZ resonances at the large hadron collider
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Srećko Morović This thesis presents a study of WZ production in proton proton collisions at a center of mass energy of 7 TeV. The measurements are based on data recorded by the CMS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of approximately 5 fb-1. The electron and muon decay channels of theW and Z bosons are used. A measurement of the inclusive cross section of the pp → WZ + X process is performed, restricted to the phase space for which the Z boson mass lies in...
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Measurement of associated Wgamma production and search for anomalous WWgamma couplings with the CMS detector
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Senka Đurić The Large Hadron Collider (LHC) has recently delivered collisions at a center of mass energy of 7 TeV and has therefore allowed for the first time to test the validity of the Standard Model (SM) at TeV scale. The precise measurement of electroweak processes constitute a central part of this program. Diboson processes, in which pairs of electroweak bosons are produced, provide in particular a good opportunity to test SM at these energies. They also allow to seek indirectly for new physics...
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Measurement of the 58Ni neutron capture cross section
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Petar Žugec The (n, γ) cross section of 58Ni – of importance for the nuclear astrophysics, as well as for nuclear technologies – was measured at the neutron time-of-flight facility n_TOF at CERN. For the measurement, two C6D6 liquid scintillation detectors were used, specifically optimized to provide as low neutron sensitivity as possible. At n_TOF, the highly luminous white neutron beam covers 12 orders of magnitude in energy – from 10 meV to 10 GeV. It is produced by a pulsed beam of 20 GeV...
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Measurement of the p(e, e' π+)n reaction with the short-orbit spectrometer at Q2 = 0.078 (GeV/c)2
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Ivica Friščić The precise measurement of the cross section for the p(e, e' π+)n reaction at certain kinematics, allows one to separate the cross section into quantities at a given four-momentum transfer Q2, which carry the information about the nucleon structure. Since the data at low Q2 are not known with an intended precision, a new measurement of the p(e, e' π+)n reaction was performed at Q2 = 0.078 (GeV/c)2 and at an invariant mass of W = 1094 MeV - approximately 15 MeV above the reaction threshold....
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Mechanically flexible crystals of cadmium(II) coordination polymers
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Mateja Pisačić Mechanically responsive crystals have recently attracted the attention of a wide scientific
community, but the origin of this remarkable crystal behaviour is still unclear. This thesis
provides a systematic study of mechanically induced crystal flexibility on a series of onedimensional crystalline cadmium(II) coordination polymers, which provided a valuable dataset
of different structural architectures, morphologies, and an unexpectedly wide range of variable
mechanical responses. A...
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