In this paper, conflict probing has been proposed as an element of a UAS self separation concept. Conflict probing consists of predicting the future separation between own ship and hazards for a set of own ship velocity vectors -representing possible combinations of Track, Flight Path Angle (FPA) and …

Global Navigation Satellite Systems (GNSS) currently dominate the Positioning, Navigation and Timing (PNT) community and there are no signs that this will change in the near future. But for many years the weeknesses of GNSS have been well known and besides research into GNSS a lot of research into back …

In the nineties the Delft University of Technology (TU Delft), faculty Maritime Technology (MT), department of hydromechanics, and the RNLNC, nautical sciences department, led by professor J.A Spaans, explored the possibility of determining the coefficients from full-scale sea trials. As a starting point …

The paper discusses the derivation of test data for three tractor-semitrailer combinations, to be used for strength and durability analysis of semi-trailers with the ultimate goal to reduce the semitrailer mass. Mathematical relationships have been used to transfer these data to representative loading …

Pedagogical content knowledge is found to be a crucial part of the knowledge base for teaching. Studies in the field of primary technology education showed that this domain of teacher knowledge is related to pupils' increased learning, motivation,and interest. The common methods to investigate teachers' …

Docenten die zelf onderzoek doen binnen een bepaald interessegebied zijn daarover enthousiast, hebben veel kennis over het onderwerp en zijn meestal ook vaardig in de uitvoering ervan. Het begeleiden van studenten binnen zo'n specifiek thema komt dan ook de kwaliteit van de begeleiding ten goede en kan …

As multimedia gradually becomes more and more an integrated part of video conferencing systems, the use of multimedia integrated desktop video conferencing technology (MIDVCT) will open up new educational possibilities for synchronous learning. However, the possibilities and limitations of this technology …

Interest in the notion that there is an untapped market with significant buying power hidden at the base of the economic pyramid (BOP) has enjoyed increased attention over the last few years. The discourse on this matter is lively and abounds with opposing opinions. Although this discourse is acknowledged …

In BOP ventures the notion of “selling to the poor” has steadily been replaced by business approaches that suggest sustainable value creation. This has certain implications, in particular the development of strategies that serve triple bottom-line goals. These include economic, social and environmental …

The enhancement of GPS technology enables the use of GPS devices not only as navigation and orientation tools, but also as instruments used to capture travelled routes: as sensors that measure activity on a city scale or the regional scale. TU Delft developed a process and database architecture for collecting …