Search for dissertations about: "RTP"

Showing result 1 - 5 of 15 swedish dissertations containing the word RTP.

  2. 1. Alkali titanyl phosphates : structures and properties

    Author : Joacim Gustafsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rtp; non-linear optical materials; rubidium titanium phosphate; langbeinite; cation position; phase transition;

    Abstract : .... READ MORE

  4. 2. Unwanted Traffic and Information Disclosure in VoIP Networks : Threats and Countermeasures

    Author : Ge Zhang; Simone Fischer-Huebner; Costas Lambrinoudakis; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SIP; VoIP; security; Denial of Service; Vulnerability analysis; timing attacks; Spam; DTMF; SIP; RTP; Computer Science; Datavetenskap;

    Abstract : The success of the Internet has brought significant changes to the telecommunication industry. One of the remarkable outcomes of this evolution is Voice over IP (VoIP), which enables realtime voice communications over packet switched networks for a lower cost than traditional public switched telephone networks (PSTN). READ MORE

  5. 3. Detection of Myocardial Ischemia using Real-Time Myocardial Contrast Echocardiography

    Author : Petri Gudmundsson; Malmö högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; myocardial contrast echocardiography; MCE; stress echocardiography; adenosine; perfusion; real-time; visual; quantative; wall motion; power modulation; bedside; SPECT; coronary insufficiency;

    Abstract : Diagnostisering av syrebrist i hjärtmuskeln med hjälp av kontrastförstärkt ultraljudsundersökning av hjärtmuskelns genomblödning. Ultraljudsundersökning av hjärtat (ekokardiografi) används mycket inom hjärtsjukvården idag, oftast för att utreda hjärtats och hjärtklaffarnas anatomi och funktion. READ MORE

  6. 4. Echocardiography/Doppler for the evaluation of coronary artery function, left ventricular function and the relationship between early diastolic and systolic function

    Author : Reidar Winter; Malmö Institutionen för kliniska vetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; coronary flow reserve; contrast echocardiography; early diastolic downward velocity; flow propagation velocity; colour M-mode; diastolic function; Echocardiography; Doppler; Kardiovaskulära systemet; Cardiovascular system;

    Abstract : Two specific areas of development in echocardiography are assessment of left ventricular (LV) diastolic function and myocardial ischemia. This thesis describes echocardiographic methodology in these two areas. READ MORE

  7. 5. Quasi-Phasematched nonlinear processes in KTiOPO4 isomorphs

    Author : Anna Fragemann; KTH; []
    Keywords : nonlinear optics; optical parametric oscillator; optical parametric amplifier; KTiOPO4; RbTiOPO4; quasi-phasematched; electric field poling;

    Abstract : This thesis explores the use of nonlinear crystals from theKTiOPO4(KTP) family with the aim to extend the possibleapplications for laser sources and to gain more knowledge aboutthe material’s benefits and limits. The work focussed onoptical parametric oscillators (OPOs) and optical parametricamplifiers (OPAs), which employ second order nonlinearprocesses. READ MORE