This paper is composed of a survey on wearable computers and a research agenda to further pursue topics in the communication area. We begin with a brief walk-through of the terminology and examples, followed by motivation originated from two historical trends – enhancing human biological ability and increasing resource accessibility. Then, we investigate the existing technologies and relevant r...

A complete procedure for the design of W-band low noise amplifier in MMIC technology is presented. The design is based on a simultaneously power and noise matched technique. For implementing the method, scalable bilateral transistor model parameters should be first extracted. The model is also used for transmission line utilized in the amplifier circuit. In the presented method, input/output ma...

Image classification and retrieval systems have gained more attention because of easier access to high-tech medical imaging. However, the lack of availability of large-scaled balanced labelled data in medicine is still a challenge. Simplicity, practicality, efficiency, and effectiveness are the main targets in medical domain. To achieve these goals, Radon transformation, which is a well-known t...

Technologically assistive devices are increasingly playing more important roles in the lives of persons with disabilities, with one of the more promising considerations being a combination of the functions of computer software and hardware. However, using a conventional keyboard for Internet access is prohibitive for persons whose hand coordination and dexterity are impaired by ailments such as...

This paper describes the development of a non-visual memory game based on the classic game ̳SimonTM‘, where users are presented with a sequence of stimuli, which they need to replicate in the same order to progress to the next level. Information is presented using a combination of speech, nonspeech audio and/or haptic cues, designed to aid blind users who are often excluded from mainstream gami...

Synchronous relational interfaces is an interface theory which allows to specify the I/O interface of a component with input requirements and relational input-output guarantees. The theory allows to check interface compatibility during composition and to compute a composite interface from the atomic ones. It provides a refinement operator which allows to check whether a component can safely rep...

Tremendous amount of images are used on modern Web pages, but images are rarely used in everyday communication via e-mail, SMS, SNS, etc., although many communication systems allow the use of images in the message. We believe that images can greatly enhance the quality of communication if they are appropriately used with alphabetical texts, and we created a text input system with which users ca...