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Showing result 1 - 5 of 57 essays matching the above criteria.

  1. 1. Time-based Key for Coverless Audio Steganography: A Proposed Behavioral Method to Increase Capacity

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : John Alanko Öberg; Carl Svensson; [2023]
    Keywords : Coverless audio steganography; information hiding; covert communication; effective capacity; behavioral; Täcklös ljudsteganografi; informationsdöljning; hemlig kommunikation; effektiv kapacitet; beteendemässig;

    Abstract : Background. Coverless steganography is a relatively unexplored area of steganography where the message is not embedded into a cover media. Instead the message is derived from one or several properties already existing in the carrier media. This renders steganalysis methods used for traditional steganography useless. READ MORE

  3. 2. Comparison between Smoothed-Particle Hydrodynamics and Position Based Dynamics for real-time water simulation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Rasmus Andersson; Erica Tjernell; [2023]
    Keywords : Fluid simulation; Lagrangian fluid simulation; Smoothed-Particle Hydronamics; Position Based Dynamics; Vätskesimulering; Lagransk vätskesimulering; Smoothed-Particle Hydronamics; Position Based Dynamics;

    Abstract : Two of the methods common in video game fluid simulation are SmoothedParticle Hydrodynamics (SPH), and Position Based Dynamics (PBD). They are both Lagrangian methods of fluid simulation. SPH has been used for many years in offline simulations and has truthful visuals, but is not as stable as the newer method PBD when using larger timesteps. READ MORE

  4. 3. Molecular Insights into the Interactions of Monovalent Cations with Highly charged Fatty Acid Monolayers

    University essay from KTH/Kemi

    Author : Ran Carlhamn Rasmussen; [2023]
    Keywords : VSFS; Langmuir monolayer; ion specific effects; modified Poisson Boltzmann; carboxylic acid; VSFS; Langmuir monolager; jonspecifika effekter; modifierad Poisson Boltzmann; karboxylsyra;

    Abstract : Vibrational sum frequency spectroscopy har använts för att studera interaktionerna mellan monovalenta joner och laddade fettsyramonolager. Subfasen bestod av utvalda alkalihydroxidsaltlösningar med pH12, med huvudfokus på cesiumjonen. READ MORE

  5. 4. Shock absorber dynamics : A parameter study of damper physical quantitiesand their effect on automobile comfort and control

    University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Author : David Stridfeldt; Jonsson Gustav; [2023]
    Keywords : Shock absorbers; dampers; parameter study; valve dynamics; comfort; control; Stötdämpare; dämpare; parameterstudie; ventildynamik; komfort; kontroll;

    Abstract :   Damper performance is most commonly characterized by the damper’s forcevelocity behaviour. Different damper layouts and valving methods for creating oil flow constrictions bring different physical properties, outside of this conventional measure. READ MORE

  6. 5. A Journey Through the World of Compression with IRS Contracts

    University essay from Umeå universitet/Institutionen för fysik

    Author : Karl Hjalmarsson; [2023]
    Keywords : Portfolio Compression; Interest Rate Swap; Newtork Simplex; Central Clearing Counterparty;

    Abstract : By participating in the market a party buys and sells different types of contracts resulting in the collection of contracts growing. With a large collection of contracts come the hurdles of an increasing operational cost, a harder-to-manage order book, and an increase in counterparty risk. READ MORE