University of Bridgeport

About: University of Bridgeport is a education organization based out in Bridgeport, Connecticut, United States. It is known for research contribution in the topics: Wireless sensor network & Key distribution in wireless sensor networks. The organization has 1008 authors who have published 1639 publications receiving 22740 citations.

Hybrid Robot-as-a-Service (RaaS) Platform (Using MQTT and CoAP)

Abstract: Robots are evolving from factory work-horses to be the robot-companions. The future of robots will be as companions in the workplace functioning as interactive salespeople. In order to support this transition, it is important to combine service-oriented architecture and robotics. Service-oriented architecture and cloud computing have become dominant computing paradigms and adding a RaaS (Robot as a Service) unit as a part of this system will help the companies manage and develop robots more efficiently. The major components of RaaS will be the integration of RMS (Robot Management System) and ROC (Robot Operation Center). As more and more robots are increasing in the service industry, the inter-robot communication is very critical. This communication can be achieved by ROC and the robots can be monitored remotely or locally via RMS. The RaaS platform will comply with all the standards of SOA (Service Oriented Architecture) like the development platform and execution unit, thereby creating a flexible and more development-friendly process.

Roadmap to a Successful Product Development

Abstract: This study details a product development process that accurately predicts the successful implementation of a new product into the market. This product development process evaluates the product development stage of a multi-stage-gate new product development system. It offers a systematic and a rational platform that describes multiple phases that allow for the determination of project viability at the onset of any small to medium product development process. These phases detail interconnected steps with a feedback loop that carry a product concept through a conceptual stage (Phase I) and the generation of a “proof of concept” or an alpha prototype that allows for the initiation of estimates for development cost, market risk analysis, performance evaluation, and product manufacturing cost estimation (Phase II). The final steps are the pre-product design stage (Phase III), which is an expansion of the broader development cost estimates generated in Phase II providing additional rigorous estimates of the product development costs. Notably, modification or redesign of failed product concepts and their conversion into successful prospects that garner market profitability is another tangible objective of the described product development process.

Strong decision and forecast horizons in a convex production planning problem

Abstract: : We consider a production-inventory planning problem with time varying demands, convex production costs, and a warehouse capacity constraint. It is solved by use of the Lagrangian form of the maximum principle. The possible existence of strong planning and forecast horizons is demonstrated. When they exist, they permit the breaking up of the whole problem into a set of smaller problems which can be solved independently, because optimal decisions up to a strong planning horizon are completely independent of demand data beyond the next forecast horizon. A forward branch and bound algorithm is developed to determine such horizons and to solve the whole problem. (Author)

Novel Steganography over HTML Code

Abstract: Different security strategies have been developed to protect the transfer of information between users. This has become especially important after the tremendous growth of internet use. Encryption techniques convert readable data into a ciphered form. Other techniques hide the message in another file, and some powerful techniques combine hiding and encryption concepts. In this paper, a new security algorithm is presented by using Steganography over HTML pages. Hiding the information inside Html page code comments and employing encryption, can enhance the possibility to discover the hidden data. The proposed algorithm applies some statistical concepts to create a frequency array to determine the occurrence frequency of each character. The encryption step depends on two simple logical operations to change the data form to increase the complexity of the hiding process. The last step is to embed the encrypted data as comments inside the HTML page. This new algorithm comes with many advantages, such as generality, applicability to different spoken languages, and can be extended to other Web programming pages such as XML, ASP.

Energy harvesting using Graphene based antenna for UV spectrum

Abstract: Recent advances in the fabrication and characterization of nanomaterials have led to the intelligible applications of such nanomaterials in the next generation of flexible electronics and highly efficient photovoltaic devices. Nanotechnology has been used in thin film photovoltaic devices, and is considered as one of the most promising research areas in power harvesting applications. The excellent electron transport properties of Graphene make it an attractive choice for the next generation of electronics and applications in energy-related areas. In this paper, we present the design and an analytical model of graphene-based nanoscale antennas for power harvesting applications. Unlike conventional solar cells that harvest energy in the visible light frequencies range, we focus on the design of a nanoscale antenna that harvests energy in the UV spectrum range frequencies. Though the irradiance of UV from the sun is less than infrared and visible light frequencies, the excess energy of photons in the UV frequency is greater than infrared or visible light frequencies and makes up for the lack of irradiance.