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A Design of Sustainable Energy Laboratory
No full text© 2011 by ASEESustainable energy, including solar power, wind power, and geothermal power, is very attractive since the utilization of sustainable resources can significantly decrease the emission and protect our environment. Also, the use of such energy can enhance the national energy security and reduce the dependence on the imported fossil fuel. Till now, several energy-related courses, such as Fuel Cells, Sustainable Energy, and Hybrid Vehicles, have been offered at the University of Bridgeport. In order to have hands-on experience, a laboratory is necessary for our engineering students with their interest in the sustainable energy as well as smart grid. A course, Sustainable Energy Laboratory, was proposed by the school’s curriculum committed and it is offered in the Spring semester, 2011. In this course, a series of experiments are designed on the operating and testing of solar panels, wind turbine, fuel cell. Moreover, experiments on power electronics and data acquisition are developed to optimize the utilization of different energy sources. Finally, simulation on smart grid power system and hybrid power system will help the students understand the challenges in the use of sustainable energy resources
Managers vs. Students: New Approach in Analyzing Current Practices in Capital Structure Management Education
No full textAccording to Graham and Harvey (2001), an immense gap exists between capital structure theories and practice. This paper argues that this can be partially explained by current educational practices by analyzing undergraduate students'perceptions of capital structure theories and the differences between their opinion and that of the current CEO's and managers. Educators mostly focus on one or maybe two most popular theories and students have much smaller knowledge about other theories. Secondly educational practices favor trade-off theory to asymmetric information based theories. The paper provides some suggestions regarding capital structure education and future research
Experimental Study of a Hydrogen System
No full textFuel cell has been pointed out as a promising technology for use in renewable energy applications. This poster is focused on the parameters of the fuel cell and explanations on how the fuel cell system works. This work includes experiment and software simulation
Chindia: Collaboration, Compromising, or Competition?
No full textAs two fast-growing economies with huge populations, China and India have become formidable forces in the world today. How do these two Asian giants see each other? Are they economic partners, political equals, and friendly neighbors? Or are they economic competitors, political rivals, and territorial enemies when it comes to border conflicts? This research attempts to answer some of the above questions
Then and Now Map
No full textWith the internet technology spreads to everywhere of the world, it is possible to find the photographs for the same location or find the current photograph based on an old photograph. It is not difficult for human beings to do it manually. Our goal is how to do it automatically. The whole automatic process includes extracting address from the website, and using CRF, Lesk Algorithm gets the most possible one. In our proposed approach, we divide all websites into 4 cases firstly as the chart shown below
SOOAWSN: A secure object oriented architecture for wireless sensor networks
No full textThis thesis is being archived as a Digitized Shelf Copy for campus access to current students and staff only. We currently cannot provide this open access without the author's permission. If you are the author of this work and desire to provide it open access or wish access removed, please contact the Wahlstrom Library to discuss permission.Secure Communication is a mandatory requirement in many network applications. Wireless sensor networks (WSN) require more attention regarding securing the communication between its nodes. In these kinds of networks, communications may occur between sensors themselves or between sensors and the node that is responsible of collecting information from sensors which is called a Base Station (BS). Communications between sensors are not completely controlled by the BS, where sensors are able to communicate directly with each others. Limited resources of such kind of networks require special techniques to be applied on those kinds of networks that differ from those applied to other kinds of networks. Some researches focus on providing the Sensor-Sensor communication and others focused on Sensor-BS communication. From the security side, many proposals present security solutions to be applied on those communications. Few proposals provide complete key management solutions to cover both kind of communications (i.e. Sensor-Sensor, and Sensor-BS communications). However, these proposals do not discuss the detection of the compromised nodes under network attacks. Some other proposals discuss the issue of compromised nodes detections. In this dissertation, we present a complete framework that covers all the aspects of WSN communications (i.e. Routing Protocol, Security Key Management, and Intrusion Detection). The framework is called Secure Object Oriented Architecture for Wireless Sensor Networks (SOOAWSN). We present each module as an object that contains some methods that cover all the aspects of that part. Then, these objects are applied together as a complete solution or as methods selected from each object to create a partial solution that satisfies specific application's requirements. The first model relates to routing technique. It contains one method for routing the information from sensors to the BS. It relies on Dynamic Clustering hierarchy where sensors are grouped into clusters with clusters heads. These clusters heads forward the data to the BS from other sensors. The second model relates to key management protocol. This model consists of three methods. First method relies on the Key-Predistribution technique where the BS assigns groups of keys with their IDs to the sensors prior to network deployment in order to be used during network communications. The second method adopts the Public-Private technique to digitally sign the message and for keys exchanges. The third method is an improvement and an addition to the Key-predistribution technique to support multi-generation network. In this method the keys are generated and renewed locally in each sensor without the need of the BS. The third model relates to intrusion detection and recovery. It consists of two methods; the Public-Private method and Routing-Attack method. The first method involves the authentication of the sensor using the digital signature. The second method monitors the behavior of the sensors by analyzing their activities compared to previous activities
STEM for Teacher Educators
No full textThis project addresses the challenge of enhancing the ability of pre- and in-service teachers to provide STEM education. The goal is to bolster the science, technology and engineering components in K-12 STEM-education by using digital audio and image processing technologies. The intellectual merit and broader impact of this project transcends the scope of the University of Bridgeport and Bridgeport schools, and it includes advanced discovery and understanding, creative and original concepts, extensive resources, participation of under-served populations, and dissemination of technological understanding
The Scribe
No full textThis is the February 2011 edition of The Scribe, Issue 8. The front page features an article on Prof. Roxie Ray and her memories of growing up during the civil rights movement and segregation. Additional articles address issues with delayed openings due to adverse weather conditions; a U.S. Diplomatic Corps presentation sponsored by Career Services and the International College; a competitive grant awarded by the National Honor Society to the National Political Science Honor Society for its annual symposium; Faculty Research Day; the Black Student Alliance; the women’s lacrosse team’s transition to NCAA Division II; and the undefeated women’s swim team
Analyzing Taekwondo Poomsae Video Based on Background Modeling Approach
No full textOne of the most popular martial art programs in world-wide is Taekwondo. It is an official Olympic game. Over 177 countries, more than five million people world-wide practice Taekwondo as their martial art style. Specifically, the Poomsae is a series of basic movements in Taekwondo for offensive and defensive techniques. Despite the high popularity and long history of Taekwondo, there has been less effort to systemize Taekwondo Poomsae competition, which may cause judging issues and be a hurdle of its proceeding to a new game in Olympics. In this poster we will mention how to use background modeling approach in Taekwondo Poomsae videos that can help in eliminating the noises around the player which could be caused by audience. At the end, it will be very helpful in analyzing Taekwondo Poomsae captured videos
The Effect of Dopant Concentration on the Performance of a Solar Cell
No full textA study about the effect of dopant concentration on the solar cell performance layers was performed through simulation software SCAPS*. The maximum efficiency was reached at ND = 1016 cm-3 and NA = 1019 cm-3