914 research outputs found
Near Eyes-Free Chauffeur Computer Interaction with Chording and Visual Text Mnemonics
Modern cars are equipped with advanced technology requiring cognitively complex
operation that is reliant on the user’s visual attention. It is therefore hazardous for drivers to
operate such devices while driving. In this paper a user interface interaction style for in-car user
interfaces are proposed. Users interact with the in-car computer using three chording keys and
chording pattern sequences are derived based on visual mnemonics. Cases are illustrated for an
in-car multimedia system, a mobile phone and a GPS-navigation system. Experimental results
demonstrate that the technique is easy to learn, efficient to use and require low visual attention
INTELLIGENT ENVIRONMENTAL SENSING WITH AN UNMANNED AERIAL SYSTEM IN A WIRELESS SENSOR NETWORK
This paper proposes a novel environmental monitoring mechanism to integrate recentlyestablished development of an Unmanned Aerial System (UAS) with WSNs for remote monitoring. The high mobility of UASs can solve the limitations associated with using WSNs in hazardous areas. In this paper, the WSN node, the Wireless Environmental Monitoring Station (WEMS), is based on ZigBee protocol for long-duration monitoring. Furthermore, to ensure the integrity of collected environmental data, an algorithm is designed in WEMS for verification. Finally, a detailed analysis of packet transmission efficiency based on ranges of flight distance is proposed to examine the effect of environmental monitoring
Towards harmonious East-West educational partnerships: a study of cultural differences between Taiwanese and Norwegian engineering students
The collaboration activities between educational
institutions in the East and the West are on the
increase as an increasingly globalized economy requires
graduates to have the skills to work across cultural divides.
Such collaborations are difficult and require patience. One
challenge is that students or teachers may have misconceptions
about aspects of the other culture that may cause
problems. This study sets out to identify what values students
in typical Eastern and Western societies associate
with a good student, good student behavior, good teachers
and good lectures with the purpose to identify discrepancies.
This study is based on the results of a pair-wise
ranking questionnaire completed by 233 Taiwanese and
Norwegian students of both engineering and non-technical
subjects. The results confirm some established beliefs
regarding culturally related differences. However, several
issues were found to be culturally neutral, and cultural
differences were identified for several issues that were
predicted to be culturally neutral. The results of this study
may be useful to educators involved in East–West
internationalization
Studies or Leisure? : a Cross-cultural Comparison of Taiwanese and Norwegian Engineering Students' Preferences for University Life
An insight into students' preferences and expectations of life at university is useful when trying to
understand drop-out percentages and design study programs, especially in the global competition
for students. This study focuses on Taiwanese and Norwegian students' preferences for life and
activities at university. Hofstede's model was used to predict culture-related differences. A pairwise
decision questionnaire was used to conduct measurements. A universal trend is that teamwork
was considered most important, and teachers were considered to be less important. The most
noticeable culture differences were that Taiwanese students preferred non-curricular values and
Norwegian students preferred curricular values. The study discipline had little impact on students'
preferences
An Efficient Management System for Wireless Sensor Networks
Wireless sensor networks have garnered considerable attention recently. Networks typically have many sensor nodes, and are used in commercial, medical, scientific, and military applications for sensing and monitoring the physical world. Many researchers have attempted to improve wireless sensor network management efficiency. A Simple Network Management Protocol (SNMP)-based sensor network management system was developed that is a convenient and effective way for managers to monitor and control sensor network operations. This paper proposes a novel WSNManagement system that can show the connections stated of relationships among sensor nodes and can be used for monitoring, collecting, and analyzing information obtained by wireless sensor networks. The proposed network management system uses collected information for system configuration. The function of performance analysis facilitates convenient management of sensors. Experimental results show that the proposed method enhances the alive rate of an overall sensor node system, reduces the packet lost rate by roughly 5%, and reduces delay time by roughly 0.2 seconds. Performance analysis demonstrates that the proposed system is effective for wireless sensor network management
Multi-Hop Routing Mechanism for Reliable Sensor Computing
Current research on routing in wireless sensor computing concentrates on increasing the service lifetime, enabling scalability for large number of sensors and supporting fault tolerance for battery exhaustion and broken nodes. A sensor node is naturally exposed to various sources of unreliable communication channels and node failures. Sensor nodes have many failure modes, and each failure degrades the network performance. This work develops a novel mechanism, called Reliable Routing Mechanism (RRM), based on a hybrid cluster-based routing protocol to specify the best reliable routing path for sensor computing. Table-driven intra-cluster routing and on-demand inter-cluster routing are combined by changing the relationship between clusters for sensor computing. Applying a reliable routing mechanism in sensor computing can improve routing reliability, maintain low packet loss, minimize management overhead and save energy consumption. Simulation results indicate that the reliability of the proposed RRM mechanism is around 25% higher than that of the Dynamic Source Routing (DSR) and ad hoc On-demand Distance Vector routing (AODV) mechanisms
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