Search for dissertations about: "revisit"

Showing result 1 - 5 of 55 swedish dissertations containing the word revisit.

  2. 1. Structure and Phase Stability of CaC2 Polymorphs, Li2C2 and Lithium Intercalated Graphite : A Revisit with High Pressure Experiments and Metal Hydride–Graphite Reactions

    Author : Sumit Konar; Ulrich Häussermann; Gunnar Svensson; Arnold Guloy; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; acetylide carbides; high pressure; Raman spectroscopy; powder X-ray diffraction; Rietveld refinement; Materials Chemistry; materialkemi;

    Abstract : Alkali (A) and alkaline earth (AE) metals can form carbides and intercalated graphites with carbon. The carbides mostly represent acetylides which are salt-like compounds composed of C22− dumbbell anions and metal cations. Both the acetylide carbides and intercalated graphites are technologically important. READ MORE

  4. 2. In-hospital bed occupancy and the emergency department - effects on decisions about the level of care

    Author : Mathias Blom; Lund Medicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; emergency department overcrowding; access block; inpatient admission; unplanned 72h revisits;

    Abstract : Background: Emergency Department (ED) overcrowding occurs when the need for ED services outstrips available resources. Causes have been divided into input, throughput, and output factors, of which the last appear to be the most influential. READ MORE

  5. 3. Play as Freedom : Implications for ICT4D

    Author : Pedro Ferreira; Kristina Höök; Jonathan Donner; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Information and Communication Tech nologies for Development (ICT4D) deals with understanding the relationship between modern technology use and social and economic development. While play may not appear as an immediate concern to the field, a recent body of work has emerged questioning the role of play in ICT4D and the reasons behind its apparent dismissal. READ MORE

  6. 4. Generalized APP Detection for Communication over Unknown Time-Dispersive Waveform Channels

    Author : Anders Hansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The principle of transmitting time-equidistant pulses to carry discrete information is fundamental. When the pulses overlap, intersymbol interference occurs. Maximum-likelihood sequence detection of such signals observed in additive white Gaussian noise (AWGN) was known in the early 1970s. READ MORE

  7. 5. Revisiting Optimal Link Activation and Minimum-Time Scheduling in Wireless Networks

    Author : Qing He; Di Yuan; Vangelis Angelakis; Erik Bergfeldt; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : With the popularity of wireless communications in the last two decades, data traffic is exponentially increasing and requests high speed transmission. However, the resources, in particular, spectrum and energy, are limited. READ MORE