This article discusses the results of a senior design project to design a baseband system for a communication system, as well as on-going efforts to improve the design. Upon completion, the experimental design is inte...
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With the advances in microelectronics devices, often computers, sensors, and actuators are integrated into mechanical systems. Modern engineering design thus requires efforts from a multidisciplinary team. Traditional...
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The area of chemical analysis is growing rapidly, supporting areas related to Bioengineering, such as pharmaceuticals and genetics. High throughput of analyses is becoming more critical. As the size of each sample shr...
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The area of chemical analysis is growing rapidly, supporting areas related to Bioengineering, such as pharmaceuticals and genetics. High throughput of analyses is becoming more critical. As the size of each sample shrinks, so to does the time available to perform accurate analysis due to evaporation and other contamination factors. New materials and processes are being created in order to provide the ability to analyze large numbers of samples in a reasonable period of time. One such project at Purdue is reducing the size of samples even further, while increasing the spatial density of a group of samples. This requires increased precision in two-dimensional alignment and sample deposition. Students in electrical and computerengineeringtechnology participated in an interdisciplinary project with chemical engineering students to automate a mostly manual alignment and deposition process. Automation of this process involves the integration and precise computer control of several disjoint instruments. The primary objective of this work was to increase throughput by several orders of magnitude. Secondary goals include system characterization and prediction of throughput upper bounds using available technology and off-the-shelf components. Successful completion of these objectives requires a combination of skills learned in the classroom as well as teamwork among students within specific disciplines as well as those from others, where technical languages and dialects are different. This paper describes the problem and subsequent design, implementation and system characterization activities undertaken. New and innovative test and measurement techniques were developed, requiring creative solutions using and stretching those learned in the classroom. Descriptions of the obstacles, methods, lessons learned, and throughput improvement results are presented. This work has provided a unique opportunity for interdisciplinary collaboration and research and development experiences
We develop a game theoretic model for studying when interconnected Internet Service Providers (ISP)s will decide to upgrade their networks. We are in particular interested in network upgrades to better accommodate rea...
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ISBN:
(纸本)9781604237924
We develop a game theoretic model for studying when interconnected Internet Service Providers (ISP)s will decide to upgrade their networks. We are in particular interested in network upgrades to better accommodate real-time applications like voice over IP, but our game model is applicable to other types of upgrade. Achieving the full benefit from network upgrades requires that enough ISPs upgrade so that the users' traffic encounters only upgraded ISPs as it traverses the Internet. This situation gives rise to two important effects. One effect is that providers are reluctant to be first to invest in an upgrade when the full benefit of the upgrade cannot be achieved until their peers do the same. The second effect is that when a provider upgrades, the quality of the Internet as a whole increases, increasing demand, and thereby increasing revenue for all ISPs - including those who have not invested in the upgrade. This free-rider effect gives providers a temptation to not upgrade and instead enjoy the benefits of their peers upgrading. Our game model takes into account both effects, and finds sufficient conditions for it to be a Nash equilibrium the ISPs involved in the game to decide to upgrade. There are a large number of other equilibria for this game, so we also find stronger conditions under which the Nash equilibrium in which all providers upgrade is the unique Nash equilibrium. Another important feature of network upgrade costs is that they are declining as technology improves. We extend our original game model for upgrades to take into account declining upgrade costs and study what effects this has on the game's outcome.
While the pedagogy of Service-Learning (S-L) has been applied beneficially in a variety of disciplines, only recently have engineeringdepartments begun to adopt the practice of integrating academically-relevant commu...
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This paper describes a research program with an objective to develop and implement an interactive virtual reality (VR) model of the aircraft inspection maintenance process for asynchronous delivery. Existing approache...
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The neural networks are successfully applied to many applications in different domains. However, due to the results made by the neural networks are difficult to explain the decision process of neural networks is suppo...
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