Search for dissertations about: "conversion formula"

Showing result 1 - 5 of 15 swedish dissertations containing the words conversion formula.

2. 1. Cracking in Reinforced Concrete Structures Due to Imposed Deformations

   Author : Agnes Nagy; Avdelningen för Konstruktionsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; minimum reinforcement; cracking; softening; shrinkage; cooling; imposed deformations; conversion formula; static E-modulus; damping coefficient; resonance frequency; dynamic E-modulus; constitutive model; thermal stress; hydration process; reinforced concrete structure; early age; crack control; Building construction; Byggnadsteknik;

   Abstract : This thesis is concerned with modeling of the cracking process in reinforced concrete due to imposed deformations. Cracking is investigated both at early ages, during hydration, and at mature age when the final properties of the concrete are reached. READ MORE

4. 2. Least squares modification of Stokes formula with application to the Estonian geoid

   Author : Artu Ellmann; KTH; []
   Keywords : geoid; stokes formula; least sequares modification; total topographic correction; total atmospheric correction; gps levelling;

   Abstract : Many applications in geodesy,geophysics and engineering require physically defined heightsrelated to an equipotential surface of the Earth, thegeoid.During the last two decades theincreased need for refined geoid models has been driven by thedemands of users of GPS, who nowadays must transformGPS-derived geodetic heights into orthometric heights, makingthem compatible with the local vertical datum. READ MORE

5. 3. Essays on risk and housing

   Author : Han-Suck Song; Hans Lind; Peter Englund; KTH; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; housing risks; risk management; strategic alliances; housing construction; low-income housing; real options; tenure choice; rent regulation; housing cooperative conversion; price index; Economics; Nationalekonomi; Econometrics; Ekonometri; Economic geography; Ekonomisk geografi;

   Abstract : There is a series of different types of risk on the housing market and related industries.  The six papers in this doctoral dissertation are about a number of the many dimensions of risk management on the housing market. READ MORE

6. 4. Homogeneous and Heterogeneous Cluster-Based Catalysts for Asymmetric Reactions

   Author : Ahmed Fawzy; Kemisk fysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Asymmetric synthesis; hydrogenation; ruthenium; osmium; rhenium; phosphine ligands; chirality.;

   Abstract : Synthesis and characterization of new transition metal carbonyl clusters has been undertaken, and evaluation of the new clusters to act as catalysts/catalysts precursor in asymmetric reactions has been carried out. The catalytic hydrogenation of tiglic acid under relatively mild conditions, using diastereomeric clusters of the general formula [(µ-H)2Ru3(µ3-S)(CO)7(µ-1,2-L)] (L= chiral diphosphine of the ferrocene-based Walphos and Josiphos families) as catalysts, reveal different catalytic behavior in terms of conversion and enantioselectivity. READ MORE

7. 5. Propagation of some coherent and partially coherent laser beams

   Author : Yangjian Cai; Sailing He; Franco Gori; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; : dark hollow beam; elliptical Gaussian beam; flat-topped beam; twisted anisotropic Gaussian Schell-model; partial coherent; propagation; paraxial optical system; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

   Abstract : In this thesis, we investigate the propagation of some coherent and partially coherent laser beams, including a dark hollow beam (DHB), an elliptical Gaussian beam (EGB), a flat-topped beam and a twisted anisotropic Gaussian Schell-model (TAGSM) beam, through a paraxial optical system or a turbulent atmosphere. Several theoretical models are proposed to describe a DHB of circular or non-circular symmetry. READ MORE