computer anxiety as a kind of state anxiety that refer to “the negative emotional and cognitive reactions in some people that occur during work with the computer” and maybe considered as a challenge to their capabilities. in the present study, computer anxiety and positive and negative attitudes to it were examinated among undergraduate students of kangavar payam-e-noor university. this descrip...

The paper describes an implementation of a multimedia, augmented reality system used for a guided school tour. The aim of this work is to improve the level of interactions between a viewer and the system by means of augmented reality. In the implemented system, hand motions are captured via computer vision based approaches and analyzed to extract representative actions which are used to interac...

ICT can support people with physical disabilities by enabling them to access the information along with others. Physical challenge either temporary or of permanent nature put limitations in learning process of an individual as it can limit accessibility, can hamper understanding thus making it difficult for such persons to be at par with others. Learning activity such as following a lecture, re...

In a few months the computer mouse will be half-acentury-old. It is known to have many drawbacks, the main ones being: loss of productivity due to constant switching between keyboard and mouse, health issues such as RSI, unnatural humancomputer interface like the keyboard. However the vast majority of computer users still uses a computer mouse nowadays. In this article, we explore computer mous...

Computer has influenced our life in such a way that it is very difficult to sustain without a computer. For physically challenged persons, especially persons without hands and legs, it is impossible to use the computers without an assistive technology. Keyboard and mouse are the most essential input devices to work with a computer. By the use of on-screen keyboard, a pointing input device such ...

Computers are today essential for implementing controllers in many different situations. The computers are often used in embedded systems. An embedded system is a built-in computer/microprocessor that is a part of a larger system. Many of these computers implement control functions of different physical processes, for example, vehicles, home electronics, cellular telephones, and standalone cont...

......The off-chip memory subsystem is a significant performance, power, and quality-of-service (QoS) bottleneck in modern computers, necessitating a high-performance memory controller that can overcome DRAM (dynamic randomaccess memory) timing and resource constraints by orchestrating data movement between the processor and main memory. Contemporary DDRx (double data rate memory interface tech...

Aggressiveness attributed to violent video game play is typically studied as a function of the content features of the game. However, can interface features of the game also affect aggression? Guided by the General Aggression Model (GAM), we examine the controller type (gun replica vs. mouse) and screen size (large vs. small) as key technological aspects that may affect the state aggression of ...

many real time processes have complex, uncertain and nonlinear dynamics. boilers are nonlinear, time varying, multi-input multi-output (mimo) systems, whose states generally vary with operating conditions. the major problem in controlling that system is that its drum water pressure and steam flow dynamics include an integrator that results a critically stable behavior. conventional controller p...