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Metamaterials: The Next Generation of Electromagnetic Materials

Prof. Alkim Akyurtlu

Electrical and Computer Engineering



In recent years there has been a rapidly growing interest in the development of new and innovative metamaterials for electromagnetic applications. These materials can be engineered to exhibit properties not found in nature and consequently hold great promise for their potential to facilitate dramatic improvements in the performance of electromagnetic devices such as antennas. In this talk, the basics of metamaterials as well as their unique properties will be provided.  Furthermore, interesting applications of these devices will be discussed.



Nanomanufacturing: Breaking the barriers to commercialization

Prof. Julie Chen

Mechanical Engineering



Exciting research discoveries in nanoscience and nanotechnology have been occurring at an explosive rate. However, for these “laboratory” discoveries to have an impact on a commercial scale, critical barriers to achieving high volume, high rate processing at the nanoscale, or “nanomanufacturing”, must be overcome. Nanomanufacturing can be generally defined as the fabrication and assembly of nanoelements (e.g., nanoparticles, nanofillers, nanotubes, nanofibers, nanowires) into nanostructures, devices, and systems -- and integration into larger scale structures -- such that heterogeneity, specificity, and scalability is possible. The barriers to nanomanufacturing include challenges such as understanding differences in material behavior at the nanoscale under manufacturing conditions such as high shear rates, and rapid variations in temperature and pressure; precision control of movement and registration; precision spatial and temporal control of process conditions such as temperature; heterogeneous patterning and assembly over large areas; robustness of templates and assemblies; detection and minimization of defects; and on-line measurement of properties and process conditions. This talk will discuss these challenges, with examples drawn from the ongoing efforts at the University of Massachusetts Lowell.



Wireless Sensor Networks and Network Processors

Prof. Yan Luo

Electrical and Computer Engineering



In this talk, a wireless sensor network that monitors room temperature is demonstrated. This will be followed by a general introduction to the topic of Computer Architecture. Various performance metrics such as performance and power issues will be discussed.



Control Systems - Concept of Feedback and Applications

Prof. Tingshu Hu

Electrical and Computer Engineering



Automatic control systems are everywhere: whenever you want to automatically bring a physical quantity to a desired value, to keep it there, to follow a certain pattern, or to meet a varying need, an automatic control system will be built. The main idea behind automatic control is feedback - The process of making corrections on the control action based on the observation of the outcome/output. The mission of control theory is to develop analysis and design methods for universal feedback control systems: mechanical, electrical, chemical, biological, economical and environmental systems, etc. This is possible since vastly different dynamical systems can be described with same mathematical models, e.g., differential eqautions. In the talk, the basic concept of feedback will be introduced. Some typical control systems will be mentioned with detailed explanation given on a magnetic suspension system. A sample course project for 16.413 (Feedback Control System) will be demonstrated via Matlab/Simulink.



Nanoelectronic Devices

Prof. Joel Therrien

Electrical and Computer Engineering



For the past 52 years, silicon has been the king of electronics. One would be hard pressed to find a consumer electronic device that did not have at its heart, a silicon based chip. Past attempts to replace silicon involved the use of other semiconductors with better electrical qualities but the devices remained essentially the same. With the nanotechnology revolution in full swing, we are now seeing novel devices based on nano-materials that do not just make faster transistors, but enable the creation of devices with completely new functionality. This talk will cover the new classes of devices and the unique properties of the nano-materials that they are made of.



An Overview of the Transformational Satellite Program

Dr. Vineet Mehta

Chief Network Engineer, TSAT Program, USAF



The presentation will provide an overview of the TSAT (Transformational Satellite) program. This program seeks to develop the next generation of communications satellites for use by the military. Satellite based systems can be of critical importance in providing communication services in regions that lack established infrastructure. Typically such systems have a lifetime of between 10-20 years, after which they are decommissioned. Over time the demand for satellite based communications services by military users has continued to grow. Technological advances have led to the deployment of new satellites with greater capacity. The distinguishing feature of the TSAT system is to be the first to field an Internet Protocol Router. This talk will cover aspects of the TSAT program. It will also cover capabilities this deployed system is expected to support, and discuss technical issues encountered in the development of such a system.


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