Essays about: "referenssystem"

Showing result 1 - 5 of 17 essays containing the word referenssystem.

  1. 1. Cosmological Horizons and the Unruh Effect

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Niklas Engelhardt Önne; [2023]
    Keywords : Unruh effect; quantum scalar fields; Bogoliubov transformations; accelerated observers; Minkowski spacetime; cosmological horizons; Rindler observers; special relativity; QFT; Unruh-effekten; skalära kvantfält; Bogoliubov-transformationer; accelererande referenssystem; Minkowski rumtid; kosmologiska horisonter; Rindlerobservatörer; speciell relativitetsteori; QFT;

    Abstract : The black hole information paradox, which states that the evaporation of black holes due to Hawking radiation results in a violation of the conservation of quantum information, is arguably one of the most fundamental problems in all of modern physics. Through the equivalence principle, the essence of the problem can be understood and studied in the context of much simpler flat spacetime (described by the theory of special relativity); in this context the Hawking radiation takes the form of the so-called Unruh effect, a thermal effect in the vacuum of a Minkowski quantum field theory that can be measured by accelerated observers. READ MORE

  3. 2. Managing diversity : the forest development types as a framework for management within mixed forest systems

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Pernilla Fridberg; [2023]
    Keywords : urban forestry; urban woodland; recreational forests; forest structure; vegetation structure; forest development types; mixed forest systems; forest management; close-to-nature management; Scanian forest systems; sustainable forest management; ecological values; resilience; sustainable cities; biodiversity; ; profile diagrams; conservation efforts; herbaceous mixed stands; species diversity; reference landscapes; forest communities;

    Abstract : The demand for both biodiversity and recreational forests is increasing. Management methods under the umbrella term Close-to-Nature management, which aims to incorporate natural successional patterns and disturbances, is considered preferable to traditional forest management methods in terms of both recreational and ecological values (Wimberly et al. READ MORE

  4. 3. Validation of theoretical cost model for Power and Reliability : Case study of a reliable Central Direct Memory Access system

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

    Author : Sonal Shrivastava; [2021]
    Keywords : Single event upsets; Extra-functional properties; System on Chip; Mean Time Between Failure; Power consumption; Enstaka händelse störs; Extra funktionella egenskaper; System på chip; Medeltid mellan misslyckande; Energiförbrukning;

    Abstract : Safety-critical applications employed in automotive, avionics and aerospace domains are placed under strict demands for performance, power efficiency and fault tolerance. Development of system hardware and software satisfying all criteria is challenging and time-consuming. READ MORE

  5. 4. Transparent paper: Evaluation of chemical modification routes to achieve self-fibrillating fibres

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Paulina Sandberg Birgersson; [2020]
    Keywords : Transparent paper; nanopaper; nanocellulose; chemical modification of cellulose; cellulose nanofibrils CNF ; Transparent papper; nanopaper; nanocellulosa; kemisk modifiering av cellulosa; cellulosa nanofibriller CNF ; nanopapper;

    Abstract : Transparenta papper tillverkade av cellulosa nanofibriller (CNF), visar stor potential att kunna ersätta petroleumbaserade plaster inom många användningsområden, till exempel för mat- och varuförpackningar. CNF, även känt som nanocellulosa, kombinerar viktiga cellulosaegenskaper, med unika egenskaper hos nanomaterial. READ MORE

  6. 5. B-plane orbital resonance analysis and applications

    University essay from KTH/Rymdteknik

    Author : Alessandro Masat; [2020]
    Keywords : ;

    Abstract : Many space engineering and orbital mechanics applications seek for the usage of focused mathematical models, capable of providing useful insight onto particular phenomena or exploiting some theoretical and physical tools to reduce the computational costs and/or increase the level of accuracy reached. Orbital resonances are one of the phenomena that needs to be properly modelled, both for exploiting such features in the mission design phase and to predict possible resonant returns of threatening objects closely approaching a specified planet. READ MORE