abstractthis study investigated the effect of digital games on vocabulary acquisition of low-proficiency iranian male and female efl learners. in order to select homogeneous learners in terms of their english language proficiency, the standard nelson proficiency test was administered, and based on the obtained results, 60 low-proficiency efl learners were selected (31 females and 29 males). the...

Digital control experiments are important parts of electrical engineering course in modern electrical schools. A virtual digital control experimental system is developed for undergraduates to learn digital control principals and to practice online. Based on the digital control hardware experiment platform, the practical circuit model is developed. And some digital control algorithms are employe...

Depending on the characteristics of the output device and the specific application, various expectations from halftoned images exist. Good reproduction of average grey values is usually demanded from images intended for visual perception. Because textures can drastically influence the appearance of a binary image, it is desirable to control their occurrence. In this paper we present a spectral ...

AbstractObjective: This current study was done to find any correlation between clinical mastitis and lameness occurrence and incidence in dairy farms.Design: This prospective field trial was done on a case control study basis. Cows were divided into two mastitis and control group and lameness recorded and compared in both groups.Procedures: This current study was done during 9...

For this feedback loop to be stable, negative feedback is used. This means that the output voltage (VOUT) is compared to the reference voltage (VR) and the difference (VR – VOUT) is amplified by the error amplifier. The output of the error amplifier is called the error voltage. The error voltage polarity is inverted with respect to VOUT and is therefore -180° out of phase with VOUT. The goal of...

Multirate digital decentralized control design is presented for linear timeinvariant systems with interaction between subsystems. The design technique, implemented in multirate digital control, eventually allows us to separately design controllers for each subsystem without considering interaction between them. The resulting closed-loop system with interaction between subsystems being eliminate...