1. Fresh food, fresh business


    from Taylor Lewis / Added

    Maryland students and local sellers come together on campus for the weekly Farmer's Market. Businesses say that the younger customers are more ready to try the new products they have to offer.

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    • Calvin Todd: Warrior Athlete


      from Taylor Lewis / Added

      Calvin Todd, an army medic, was wounded while serving in Afghanistan. Recovering at Walter Reed Medical Center, he's used his love of sports to make the process faster.

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      • MMMD Workforce Development Forum - Cynthia Boddie-Willis


        from Focal Point Productions / Added

        26 Plays / / 0 Comments

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        • Progress Poets


          from Jenny Hottle / Added

          11 Plays / / 0 Comments

          Three University of Maryland sophomores shared a passion for music and formed a band as their capstone project for the honors program Digital Cultures and Creativity. Over the course of one semester, Caleb Dorsch, Ryan Lienesch and Bryant O'Brien are writing their own music and lyrics and attempting to produce a full-length album. Progress Poets can be found at facebook.com/pages/Progress-Poets/385552748206833?fref=ts. Filmed with a Nikon D5100 and edited in Adobe Premiere CS6.

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          • Beaker Breaking at 724Hz


            from Garret Room Studios / Added

            28 Plays / / 0 Comments

            A test was performed to find how small a volume is required to break a beaker once the frequency generator is precisely tuned to the resonant frequency.

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            • Adele's Leftovers Makes Maryland Students Happy


              from Melissa Katz / Added

              26 Plays / / 0 Comments

              University of Maryland student Shefali Shah rejoices as she heats up her leftovers from Adele's, the on-campus restaurant in the Stamp Student Union.

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              • The Bureau Presents: Holiday Sketch Show Intro Video


                from Collin Baker / Added

                31 Plays / / 0 Comments

                This played before the Bureau's Holiday Sketch Show in 2012. The Bureau is the University of Maryland's only stand-up, improv, and sketch comedy group. Video created by The Bureau Shot by Collin Baker Edited by Collin Baker Featuring the music of the Vince Guaraldi Trio. Shot on a Canon t3i using a Nikon 50mm lens stabilized with the Cowboy Studio shoulder rig.

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                • UML: Once More with Meaning


                  from ISR at UMD / Added

                  316 Plays / / 0 Comments

                  Ed Seidewitz CTO, Americas, Ivar Jacobson International Abstract The Unified Modeling Language (UML) has arguably succeeded in becoming the most commonly used modeling notation for software development. But modeling in the software community seems largely to mean simply drawing pictures, either to represent the problem domain or to blueprint a solution, without a precise enough meaning to fully specify the functionality of the system being developed. As a result, the UML standard, up to and including the latest formal version (UML 2.4.1), does not define the semantics of UML models at all precisely. However, UML is also the basis for the System Engineering Modeling Language (SysML), and the system engineering community has traditionally defined models that are much more precise, allowing for simulation and analysis of systems involving complex combinations of software, hardware and physical processes. And some within the software community also see the need for a similar level of precision in models, allowing them to be executable in their own right. As a result, there has been in a great deal of work in recent years toward the standardization of the formal semantics of UML models the meaning behind the pictures: the Foundational UML (fUML) specification adopted in 2008; the Action Language for fUML (Alf), adopted in 2010; the UML 2.5 specification, currently in finalization (which includes a semantics conformance point for the first time); and work in progress on the Precise Semantics of UML Composite Structures. This talk will review the state of this work and the implications for software and system engineering practice of bringing real meaning to UML. Biography Ed Seidewitz has 25 years of professional experience with the modeling, architecture and development of systems spanning diverse domains including aerospace, finance, acquisition and health care. In 2009, his 2003 paper "What Models Mean" was named an IEEE Software magazine 25th Anniversary Top Pick. Mr. Seidewitz has been active with the Object Management Group (OMG) for over 10 years, including involvement in every UML 2 Revision Task Force, as well as the Service Oriented Architecture Modeling Language (SoaML) and System Engineering Modeling Language (SysML) specifications. He was primary author of the Foundational Subset for Executable UML Models (fUML) and Action Language for Foundational UML (Alf) specifications. He is currently chair of the fUML 1.2 and Alf 1.1 Revision Task Forces, a member of the UML 2.5 Finalization Task Force, a leader of the Model Interchange Working Group and a member of the Information Flow Modeling Language and Precise Semantics of UML Composite Structures submission teams.

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                  • Analysis and Simulation of Embedded Control Performance using Jitterbug and TrueTime


                    from ISR at UMD / Added

                    349 Plays / / 0 Comments

                    Karl-Erik Arzen Lund University, Sweden Abstract In design of resource-constrained embedded and networked control systems and cyber-physical systems it is necessary to be able to evaluate how the temporal non-determinism caused by the sharing of CPU and communication bandwidth effect control performance. In this presentation two tools are presented that allows for this. Jitterbug is a Matlab toolbox for analytical statistical evaluation of how latencies and jitter in a control loop effects control performance evaluated by a quadratic cost function. In Jitterbug it assumed that the latency distributions are known. If that is not the case or more general performance metrics are needed then the TrueTime toolbox can be used. TrueTime supports co-simulation of the temporal effects caused by real-time kernels and networks together with the continuous-time dynamics of the physical system under control. In Truetime discrete-event models of kernels and networks are embedded within Simulink through the use of S-functions. Within the kernels controller code is modeled by tasks and/or interrupt handlers written in C/C++ code or .m functions. Currently TrueTime is also being ported to Modelica, jointly by Lund University and Vanderbilt University. This version currently under development is based on the open model exchange interface FMI (Flexible Mock-Up Interface), an open source alternative to Simulink's S-functions. During the talk demonstrations of both Jitterbug and TrueTime will be given. Biography Karl-Erik Arzen is professor in Automatic Control at Lund University, Lund, Sweden. He received his PhD in 1987 from the same university and since then has also worked for ABB Corporate Research. Arzen's research lies in the intersection of control engineering and embedded real-time systems, with a special emphasis on co-design of control and computing systems, and on feedback computing for embedded systems. Arzen has been strongly involved in the European Networks of Excellence Artist2 and ArtistDesign on embedded system design as well as participated in several EU STREP and IP projects. He is currently the co-director of the strategic ICT research area ELLIIT. Arzen is associate editor for Real-Time Systems Journal and area editor for Leibniz Transactions on Embedded Systems. He received the Dr Guido Carlo-Stella award in manufacturing automation from the World Batch Forum in 2006 for achievements in manufacturing automation and information structuring. He was the vice chair of the IFAC TC on Real-Time Computing & Control 2002 - 2004 and the chair of IEEE CSS TC on Real-Time Control, Computing and Signal Processing 1999 - 2002. He is a member of the Royal Swedish Academy of Engineering Sciences.

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                    • Student Charged: University Of Maryland Student Arrested In Child Pornography Sting


                      from Caroline Woodall / Added

                      51 Plays / / 0 Comments

                      COLLEGE PARK — A University of Maryland freshman was arrested this week on charges of distributing child pornography and crossing state lines to engage in illicit sexual conduct with a minor, according to a criminal complaint.

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