Avancerad sökning

Hittade 2 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Studies of Atmospheric Water Vapor Using the Global Positioning System

   Författare :Ragne Emardson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; troposphere; microwave radiometry; climatology; radiosondes; atmospheric water vapor; Global Positioning System; time series analysis; VLBI; space geodesy; GPS; Very Long Baseline Interferometry; meteorology; radio wave propagation; Kalman filtering;

   Sammanfattning : Atmospheric water vapor is of fundamental interest in the Global Positioning System (GPS) and Very Long Baseline Interferometry (VLBI) techniques. These techniques are based on the timing of radio waves propagating through the atmosphere. LÄS MER

3. 2. Overall Accessibility of Public Transport for Older Adults

   Författare :Catherine Sundling; Mats E. Nilsson; Birgitta Berglund; Leslie R. Pendrill; Ragne Emardson; Bo Edvardsson; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; older persons; critical incidents; critical reactions; travel behavior; accessibility; functional limitation; functional ability; barrier; facilitator; public transport; railway travel; Psychology; psykologi;

   Sammanfattning : This thesis is based on four studies that explore accessibility for older adults during whole trips by public transport. The overall goal was to gain knowledge of the interrelationships among key variables and to develop a conceptual model of the overall accessibility of public transport. LÄS MER