Abstract In this paper, we will discuss the experience of developing projects based upon a central real world example to introduce first year students to engineering. We will outline how the theme of two dimensional barcodes was used to introduce our students in the freshmen Foundations of Engineering I (ENGR111) course to the key skills of engineering design, problem solving, teamwork... In this paper, we will discuss the experience of developing projects based upon a central real world example to introduce first year students to engineering. We will outline how the theme of two dimensional barcodes was used to introduce our students in the freshmen Foundations of Engineering I (ENGR111) course to the key skills of engineering design, problem solving, teamwork and computer programming. Results show that the students found the experience positive. Read More Read Less

Abstract Wireless sensor and actor networks consist of heterogeneous sensor and actor that connect together by wireless media. In these networks sensors find the physical events and send them to sink or actor for suitable action. One of important goals in designing of these networks is send data from the best path with low energy and increase the network’s life time.... Wireless sensor and actor networks consist of heterogeneous sensor and actor that connect together by wireless media. In these networks sensors find the physical events and send them to sink or actor for suitable action. One of important goals in designing of these networks is send data from the best path with low energy and increase the network’s life time. In this paper three protocols for actor selection is proposed. At first and second protocols, network is single hop and actor selection is done during it. But, in third protocol, one life time parameter is attached to every packet that it becomes to zero upon arrive to first actor, and actor selection is done. Read More Read Less

Abstract In this paper, we will discuss the experience of developing projects based upon a central real world example to introduce first year students to engineering. We will outline how the theme of two dimensional barcodes was used to introduce our students in the freshmen Foundations of Engineering I (ENGR111) course to the key skills of engineering design, problem solving, teamwork... In this paper, we will discuss the experience of developing projects based upon a central real world example to introduce first year students to engineering. We will outline how the theme of two dimensional barcodes was used to introduce our students in the freshmen Foundations of Engineering I (ENGR111) course to the key skills of engineering design, problem solving, teamwork and computer programming. Results show that the students found the experience positive. Read More Read Less

Abstract The expanding use of wireless devices has prompted the need of larger bandwidths by these devices. This need is a result of larger bit-rates or the use of different standards using different frequency bands. In this work, Ultra Wide Band (UWB) 2-14GHz with its matching circuit is presented. The antenna responses, input impedance radiation pattern, currant distribution and VSWR at... The expanding use of wireless devices has prompted the need of larger bandwidths by these devices. This need is a result of larger bit-rates or the use of different standards using different frequency bands. In this work, Ultra Wide Band (UWB) 2-14GHz with its matching circuit is presented. The antenna responses, input impedance radiation pattern, currant distribution and VSWR at various frequencies are studied and compared to that of a commercial antennas . The viability of this antenna is tested using the simulator of CST-2010 tool. Read More Read Less

Abstract In this paper, as a result of our extensive analysis of several existing measurement techniques and tools, we describe the main characteristics, accuracy and performance evaluation metrics as well as robustness assessment criteria of bandwidth measurement tools and propose a generic classification and evaluation scheme consisting of three major dimensions: classification dimension, dimension of accuracy and performance assessment, and dimension... In this paper, as a result of our extensive analysis of several existing measurement techniques and tools, we describe the main characteristics, accuracy and performance evaluation metrics as well as robustness assessment criteria of bandwidth measurement tools and propose a generic classification and evaluation scheme consisting of three major dimensions: classification dimension, dimension of accuracy and performance assessment, and dimension of robustness assessment. To the best of our knowledge,by proposing this generic scheme we make the first attempt in order to simplify and standardize the prospective classification and evaluation of bandwidth measurement tools. Read More Read Less