Essays about: "inverse theory"

Showing result 1 - 5 of 28 essays containing the words inverse theory.

  1. 1. Titanium vacancy diffusion in TiN via non-equilibrium ab initio molecular dynamics

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : Davide Gambino; [2016]
    Keywords : Titanium nitride; Ti monovacancy migration; Non-equilibrium ab initio molecular dynamics; Color diffusion algorithm; Statistics for stochastic events;

    Abstract : Transition metal nitrides (TMNs) refractory ceramic materials are  widely employed as wear-resistant protective coatings in industrial machining as well as diffusion barriers inhibiting migration of metal impurities from the interconnects to the semiconducting region of electronic devices. TiN is the prototype of this class of materials and the most studied among TMNs. READ MORE

  2. 2. Diffuse Reflectance Spectroscopy: Using a Monte Carlo method to determine chromophore compositions of tissue

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Lisa Kobayashi Frisk; [2016]
    Keywords : Biophotonics; Photonics; Diffuse Reflectance; Spectroscopy; Monte Carlo; Diffusion; Physics and Astronomy;

    Abstract : In this work, inverse diffusion equation and Monte Carlo methods are used in conjunction with diffuse reflectance spectroscopy to develop a protocol for evaluating the chromophore compositions of tissue mimicking liquid phantoms. A novel two spectrometer system is used which provides real time calibration of any intensity fluctuations of the light source. READ MORE

  3. 3. Fate and Transport of Nano-TiO2 in Saturated Porous Media: Effect of pH, Ionic Strength and Flow Rate

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Tsegay Mengestab; [2015]
    Keywords : Nanoparticles; TiO2; saturated porous media; transport; DLVO theory;

    Abstract : Titanium dioxide nanoparticles are widely used in a variety of products, such as pigments, paints, paper, plastics, cosmetics, nano-fibers, food coloring and photovoltaic cells, and the industry is growing at anexponential rate. It is believed that by 2025, 2.5 million tons of nano-TiO2 will be manufactured annually. READ MORE

  4. 4. A joint model of heavy truck, tyres, and operating environment for tyres selection

    University essay from Chalmers tekniska högskola/Institutionen för tillämpad mekanik

    Author : Petr Kolár; [2015]
    Keywords : Vehicle dynamics; tyres; rolling resistance; fuel consumption; optimization.;

    Abstract : Improving fuel efficiency is one of the core targets when minimizing the transport cost of a vehicle combination.Hence, it is crucial to optimize the design and selection of all vehicle components, including tyres. READ MORE

  5. 5. Inversion of 2D Magnetotelluric and Radiomagnetotelluric data with Non-Linear Conjugate Gradient techniques

    University essay from Uppsala universitet/Geofysik

    Author : Dominik Zbinden; [2015]
    Keywords : Numerical solutions; inverse theory; non-linear conjugate gradients; preconditioning; electromagnetic theory; magnetotellurics;

    Abstract : I implemented and tested the method of Non-Linear Conjugate Gradients (NLCG) to invert magnetotelluric (MT) and radiomagnetotelluric (RMT) data in two dimensions. The forward problem and the objective function gradients were computed using finite-difference methods. READ MORE