Wireless sensor networks (WSNs) include sensor nodes in which each node is able to monitor the physical area and send collected information to the base station for further analysis. The important key of WSNs is detection and coverage of target area which is provided by random deployment. This paper reviews and addresses various area detection and coverage problems in sensor network. This paper ...

A learning environment having more than one screen enables users to display and compare various sources of learning information with two adjacent screens illustrating the development of interrelated concepts and showing their relationships. This proposed technique could provide higher quality resources for learners by addressing physical and psychological factors. However, attention is a limite...

This study examined whether children’s reading rate, comprehension, and recall are affected by computer presentation of text. Participants were 60 grade five students, who each read two expository texts, one in a traditional print format and the other from a computer monitor, which used a common scrolling text interface. After reading each text, participants were asked to recall as much as they...

This paper presents the results of an experiment measuring the difference of reading speed and preference when reading on paper or screen. Extending previous experiments on the topic of reading speed measurements, which usually concentrate in specific age groups, in this experiment, forty two participants from across the adult life span took part in reading on computer screen or on paper. Resul...

Computer display system users must integrate data across successive displays. This problem of across-display processing is analogous to the question of how the visual system combines data across successive glances (fixations). Research from cognitive psychology on the latter question is used in order to formulate guidelines for the display designer. The result is a new principle of person-compu...

This study examined how customers’ preference and purchase intention change depending on presentation type of information. Products’ information was manipulated on scale and order dimension. Participants made a decision on three situations choosing music(mp3) download plan, cell phone data plan, drinks voucher plan for a coffee shop as well. All stimuli were appeared through the computer monito...

This paper illustrates the need for validating the calculation of monitor units as part of the process of commissioning a photon beam model in a radiation treatment planning system. Examples are provided in which this validation identified subtle errors, either in the dose model or in the implementation of the dose algorithm. These errors would not have been detected if the commissioning proces...

A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface that integrates speech and hand gestures. The interface has the additional property of operating relative to the user and can be used while the user is in motion or standing at a distance from the ...

We developed an interface system called “Marching Bear,” where the robot controller’s motions were reflected in the motions of certain characters appearing on a computer display. We then conducted a simple experiment to investigate the effectiveness of this interface system to see whether users felt that this interface system was enjoyable. We used a questionnaire and conducted an observation t...

This paper describes a method for enhancing the privacy of computer displays in public and semipublic areas. By operating the display at a higher-than-usual frame rate and alternately displaying frames of an arbitrary private image and a computed mask image, unauthorized viewers perceive one image, while authorized viewers with appropriately keyed shutterglasses see an entirely different (and p...