Collaborative learning is extensively applied in classroom activities, but the screens on handheld devices are designed for individual-user mobile applications and may constrain interaction among group learners. The small screen size may lead to fragmented and tête-à-tête communication patterns and frequently obstruct the externalization of the learning process. This study compares two learning...

To facilitate wide adoption of handheld devices for mobile Internet access, it is important to enable the “develop once and use everywhere” concept. This means that a Web page can be developed in HTML for presentation on desktop machines, and then be automatically adapted and displayed on any devices including handheld devices. In this paper, we present a mediator Web service that automatically...

While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device’s contents. This paper describes two novel types of smart card with unconventional form factors, designed to take advantage of common interfaces built into many current handheld devices.

While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device’s contents. This paper describes two location-based user authentication mechanisms designed to take advantage of Bluetooth functionality built into many current handheld devices.

While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device’s contents. This paper describes two novel types of smart card with unconventional form factors, designed to take advantage of common interfaces built into many current handheld devices.

Wireless networks are increasingly pervasive in many commercial and business environments. Additionally, many portable computing devices now have built-in wireless networking support. With these trends we are entering a new era of mobile computing and entertainment. In this demonstration we introduce an application named MStream for mobile handheld devices such as PDAs. MStream provides customi...

The current generation of handheld devices have substantially greater processor speeds and graphics capabilities than the previous generation. With these gains, handheld devices have crossed an important technological threshold. It is now possible to blend the methods and practices used to create larger scale Augmented Reality (AR) experiences with those used to design handheld games. Handheld ...

Handheld devices are becoming more and more popular in education. Educational simulation and modelling are not new soil, but for handhelds they are still much under explored. Due to the difficulties teachers usually face in developing computer models and simulations and the lack of adequate tools for building them, we developed an authoring-tool for handheld educational simulation and modelling...

Grid technology attempts to support flexible, secure, coordinated information sharing among dynamic collections of individuals, institutions, and resources. The use of Grid services requires a resourceful workstation, specialized software installed locally and expert intervention. Mobile handheld devices in general do not posses enough computational and communication assets to meet the criteria...

Bézier surfaces have been widely employed in the designing of complex scenes with high-quality results. Nevertheless, parametric surfaces cannot be directly rendered in the current GPUs of modern handheld devices. This work proposes a non-adaptive method for tessellating Bézier surfaces on a GPU without primitive generator, such as the GPUs implemented in handled devices. Our technique is based...