Microfluidics is a multidisciplinary field that deals with the behavior and precise control of microliter and nanoliter volumes of fluids. While microfluidics has transformed many areas of engineering and applied scie...
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Microfluidics is a multidisciplinary field that deals with the behavior and precise control of microliter and nanoliter volumes of fluids. While microfluidics has transformed many areas of engineering and applied sciences, minimal effort has been directed at transferring microfluidics research to the undergraduate curricula. Addressing this need, the University of Cincinnati has developed an undergraduate laboratory course to introduce students to microfluidics device development that is currently being expanded to four other universities with the assistance of an NSF CCLI Phase II grant (DUE-0814911). This course has been taught at University of Cincinnati four times, the University of Illinois at Chicago three times previously and the University of Utah, Louisiana State University, and North Carolina State University once. This paper will discuss course evaluation and the issues encountered in offering the course at five diverse educational institutions. Some of the issues included course structure (quarters vs. semesters), student background knowledge (engineering majors), and domain expertise level (graduate or undergraduate). The initial success of the pilot program and expansion to other universities is encouraging as course materials are adapted and more engineering students are introduced to advanced multidisciplinary research topics using microfluidics.
This paper introduces a new cantilever type multi-source energy harvester generating electric power from both ambient heat and vibration. Harvesting energy from vibration was realized by electromagnetic conversion, wh...
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This paper introduces a new cantilever type multi-source energy harvester generating electric power from both ambient heat and vibration. Harvesting energy from vibration was realized by electromagnetic conversion, whereas the energy generation from heat was supplied by making use of Seebeck effect of Cr–Al thermocouples implemented on the microcantilevers. The measured average Seebeck coefficient is 12 μV/K per thermocouple. A total voltage of 3.3 mV was generated from the thermoelectric part and 13.4 mV from the electromagnetic part of the device. Measured total power from the fabricated chip is 1.91 nW (1.12 nW from vibration, 0.79 nW from thermoelectric).
Cluster analysis is used in several research areas to classify data sets in groups by their similar characteristics. Metaheuristic-based techniques, such as Genetic Algorithms (GAs) and Ant Colony Optimization (ACO), ...
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Cluster analysis is used in several research areas to classify data sets in groups by their similar characteristics. Metaheuristic-based techniques, such as Genetic Algorithms (GAs) and Ant Colony Optimization (ACO), have been applied in order to increase the clustering algorithm performance. GA and ACO-based clustering algorithms are capable of efficiently and automatically forming natural groups from a pre-defined number of clusters. This paper presents a GA and an ACO algorithm to the clustering problem. Both algorithms were refined using local search in order to improve the clustering accuracy. The results are compared on numeric UCI databases.
The paper addresses Medical Hand Drawing Management System architecture and implementation. In the system, we developed four modules: hand drawing management module; patient medical records query module; hand drawing ...
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The paper addresses Medical Hand Drawing Management System architecture and implementation. In the system, we developed four modules: hand drawing management module; patient medical records query module; hand drawing editing and upload module; hand drawing query module. The system adapts windows-based applications and encompasses web pages by *** hosting mechanism under web services platforms. The hand drawings implemented as files are stored in a FTP server. The file names with associated data, e.g. patient identification, drawing physician, access rights, etc. are reposited in a database. The modules can be conveniently embedded, integrated into any system. Therefore, the system possesses the hand drawing features to support daily medical operations, effectively improve healthcare qualities as well. Moreover, the system includes the printing capability to achieve a complete, computerized medical document process. In summary, the system allows web-based applications to facilitate the graphic processes for healthcare operations.
This work approaches relative aspects to the alarm processing problem and fault diagnosis in system level, having as purpose filter the alarms generated during a outage and identify the equipment under fault. A method...
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Secure communication is of utmost importance to participants of Internet conferences. Secure communication thwarts eavesdropping. In an Internet conference, all conference participants together establish a common conf...
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Auditory perception is one of the most important functions for robotics applications. Microphone arrays are widely used for auditory perception in which the spatial structure of microphones is usually known. In practi...
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The speed and convenience of the Internet makes it advantageous to online applications. Basing on the elliptic curve cryptosystem, this study proposes a hierarchical mobile agent framework for handling key management ...
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Assessment theory has expanded from traditional examinations that are focused on the result, to include the process of learning. ABET program evaluators (PEVs) have been instructed to look for documentation of student...
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High-frequency power Doppler imaging of angiogenesis can be challenging given the presence of small blood vessels and slow flow velocities. In the presence of substantial Doppler artifacts such as false-positive color...
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