Showing posts with label SIMULATIONS. Show all posts
Showing posts with label SIMULATIONS. Show all posts

Tuesday, April 21, 2015

CYBERLEARNING SCIENCE

FROM:  NATIONAL SCIENCE FOUNDATION
Classroom as virtual phenomenon
University of Illinois professor uses cyberlearning to bring scientific processes to life

In the schools where Tom Moher works, classrooms are imbued with science through simulated earthquakes, virtual bugs in the walls and digital portholes to the solar system.

"I want to immerse students in the physical space and time of scientific phenomena," said Moher, an associate professor of computer science, learning sciences, and education at the University of Illinois at Chicago. "Sometimes I use the term 'marinating' the kids. Time affords me the opportunity for surprise. Nature happens when it happens, not just because it happens to be science period."

In his talk at the National Science Foundation (NSF) last spring as part of the "Designing Disruptive Learning Technologies" series, Moher showcased projects that use "embedded phenomena" to bring scientific processes into the classroom and to foster learning from those experiences.

One of the projects he described (supported by an award from NSF) was RoomQuake, an earthquake simulation system where the classroom itself becomes an active seismic area.

At unpredictable times throughout the unit, rumbles emanating from speakers attached to simulated seismographs signal to the class that an earthquake is occurring.

Students rush to terminals around the classroom, read the data from seismograms and use that information to determine the magnitude of the event, the distance of the event from the recording stations and eventually and the epicenter of the earthquake. Over the course of six weeks and dozens of earthquakes, students discover a "fault line" emerging.

Moher's immersive learning experiences bring technological richness and narrative drama to the classroom. This is true not only of RoomQuake, but also HelioRoom, where students are asked to imagine that the sun is located in the center of their classroom, and Wallcology, where tablets adjacent to the walls of classrooms serve as viewports into an imaginary space inside the walls filled with the virtual fauna.

The projects also highlight the role of computing and data analysis in domains from seismology to astronomy.

In Moher's most recent project, HungerGames, students learn about animal foraging behaviors using stuffed animals with embedded RFID tags that act as tangible avatars to represent their foraging among patches of food (with camouflaged RFID readers) distributed around a classroom.

During a two-period pilot enactment of the unit, Moher and his team demonstrated the feasibility of the design for classroom use, finding evidence of emotional relationships between learners and avatars, and the emergence of unanticipated behaviors that promoted new questions about the science phenomena. The results provisionally support the effectiveness of the activity as a science learning environment.

Moher's team presented their results at the Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction in 2014.

Whether it is students peering into a secret insect habitat or rushing to locate the epicenter of an earthquake, "the kids and teachers are our willing accomplices," Moher said.

"It's their imagination, along with a little bit of technology, that brings the room alive."

-- Aaron Dubrow, NSF
Investigators
Thomas Moher
Related Institutions/Organizations
University of Illinois at Chicago

Tuesday, March 3, 2015

LANL: ADVANCED MODELING, SIMULATION TECH USED IN LIGHT-WATER REACTOR RESEARCH

FROM:  LOS ALAMOS NATIONAL LABORATORY
Los Alamos Boosts Light-Water Reactor Research with Advanced Modeling and Simulation Technology
Simulated nuclear reactor project benefits from funding extension

LOS ALAMOS, N.M., March 2, 2015, 2014—Hard on the heels of a five-year funding renewal, modeling and simulation (M&S) technology developed at Los Alamos National Laboratory as part of the Consortium for the Advanced Simulation of Light Water Reactors (CASL) will now be deployed to industry and academia under a new inter-institutional agreement for intellectual property.

“This agreement streamlines access to the reactor simulation research tools,” said Kathleen McDonald, software business development executive for the Laboratory, “and with a single contact through UT-Battelle, we have a more transparent release process, the culmination of a lengthy effort on the part of all the code authors,” she said.

CASL is a US Department of Energy “Energy Innovation Hub” established in 2010 to develop advanced M&S capabilities that serve as a virtual version of existing, operating nuclear reactors. As announced by DOE in January, the hub would receive up to $121.5 million over five years, subject to congressional appropriations. Over the next five years, CASL researchers will focus on extending the M&S technology built during its first phase to include additional nuclear reactor designs, including boiling water reactors and pressurized water reactor-based small modular reactors.

CASL’s Virtual Environment for Reactor Applications (VERA) – essentially a “virtual” reactor – has currently been deployed for testing to CASL’s industrial partners. Created with CASL Funding, VERA consists of CASL Physics Codes and the software that couples CASL Physics Codes to create the computer models to predict and simulate light water reactor (LWR) nuclear power plant operations. VERA is being validated with data from a variety of sources, including operating pressurized water reactors such as the Watts Bar Unit 1 Nuclear Plant in Tennessee, operated by the Tennessee Valley Authority (TVA)

As one of the original founding CASL partners, Los Alamos will continue to play an important role in Phase 2 of CASL.  Specifically, Los Alamos has leadership roles in three technical focus areas: Thermal Hydraulics Methods (THM), Fuel, Materials and Chemistry (FMC) and Validation and Modeling Applications (VMA).

Thermal-Hydraulics applications range from fluid-structure interaction to boiling multiphase flows. The Los Alamos-led THM team is targeting a number of industry-defined CASL “challenge problems” related to corrosion, fretting and departure from nucleate boiling.

The Fuel, Materials and Chemistry (FMC) Focus Area aims to develop improved materials performance models for fuel and cladding, and integrate those models via constitutive relations and behavioral models into VERA.  In particular, Los Alamos will bring to bear experience in structure-property relations, mechanical deformation and chemical kinetics to address several key aspects of nuclear fuel performance.

The Validation and Modeling Applications (VMA) Focus Area applies the products developed by CASL to address essential industry issues for achieving the CASL objectives of power uprates, lifetime extension, and fuel burn up limit increases, while ensuring the fuel performance and safety limits are met.

Los Alamos will continue to provide functions that are essential for achieving credible, science-based predictive modeling and simulation capabilities, including verification, validation, calibration through data assimilation, sensitivity analysis, discretization error analysis and control, and uncertainty quantification.

The new IIA agreement makes one of the Los Alamos-developed software tools, MAMBA, available for research, subject to agreements through the consortium partners. In addition, the Hydra-TH application is provided under an open-source license in VERA for advanced, scalable single and multiphase computational fluid dynamics simulations.

CASL, which is led by and headquartered at Oak Ridge National Laboratory (ORNL), has created hundreds of technical reports and publications and wide engagement with nuclear reactor technology vendors, utilities, and the advanced computing industry.

Doug Kothe, CASL Director at ORNL, notes that “CASL has benefitted tremendously from the innovative technical contributions and leadership provided by Los Alamos technical staff and is fortunate to have these contributions continuing as CASL moves into its second five-years of execution.”

Monday, November 3, 2014

NSF FUNDS SIMULATIONS TO TRAIN STUDENTS IN CYBERSECURITY

FROM:  NATIONAL SCIENCE FOUNDATION 
Cybersecurity: It's about way more than countering hackers
Growing professionals in cybersecurity means supporting an interdisciplinary approach that develops sophisticated thinkers

It's tense in the situation room. A cyber attack on the electrical grid in New York City has plunged Manhattan into darkness on a day that happens to be the coldest in the year. Concurrently, the cellular phone network has been attacked, silencing smartphones and sowing confusion and panic. A foreign power has claimed responsibility for the attacks and says more are coming. Your job is to look at geopolitical factors, intelligence feeds, military movements and clues in cyberspace to predict what may be happening next. Your goal is to make a recommendation to the President.

This scenario is thankfully not real, but it is the kind of simulation planned for students in the cybersecurity program at California State University, San Bernardino (CSUSB). With funding from the National Science Foundation's (NSF) CyberCorps®: Scholarships for Service (SFS) program, undergraduate and graduate students take an interdisciplinary approach to cybersecurity.

"We provide an environment where business students can work with engineers on drones, and students from political science can work on predictive modeling," said Principal Investigator (PI) Tony Coulson. "Our students can major in business, public administration, criminal justice, computer science, intelligence, all with cyber security as an option. We produce students who can problem-solve--people who can understand politics and finance as well as computer science."

Cybersecurity is a field that has received a lot of attention in recent years because of hacking episodes that have compromised networks, and in turn, the personal information of citizens who depend on a safe cyberspace to do such activities as banking and shopping. Following such a breach, attention is generally focused on identifying the hackers and their methods.

Among the options for students supported through San Bernardino's SFS program is being educated in cyber intelligence to deal proactively with cyber threats--to predict malicious behavior before it happens. Doing so draws not only on a background in computer and information science, but also on an understanding of human behavior and psychology and the political and economic environment. About 50 students have gone through the program, including completing internship requirements, and Coulson reports 100 percent placement with employers.

"The San Bernardino project is one of 166 active projects around the country fully or partly funded by SFS," said SFS Lead Program Director Victor Piotrowski. "Cybersecurity is a dynamic and evolving field, and the country needs talented people with the skills to protect U.S. interests around the world. Through SFS, we prepare students for high-paying careers in government, and increase the capacity of institutions to offer quality course work in this area."

A condition of students' receiving support through SFS is that they put their skills to work in a government agency for a period equal to the duration of their scholarship. Coulson says that after completing the program at CSUSB, students often have to choose from multiple offers. The program boasts having students placed in many areas of government.

"CSUSB students have a depth of skills and often pick their dream jobs," said Coulson, including a student who got a job at his first-choice agency--the National Archives.

San Bernardino is a poor community, and the good jobs available to SFS graduates can make a huge difference to them and their families. To promote their success in finding and keeping employment, the professional development offered to students goes beyond their academic work to include business etiquette, mentoring, how to succeed at an internship, and how to conduct oneself successfully in an office. The goal is to produce a graduate ready to be hired.

In addition to traditional essay-based projects, students have to complete a very hands-on final exam, requiring that they pick locks and use digital and biometric information to hack into a network. According to Coulson, they enjoy the challenge.

Along with running the SFS project, Coulson is co-PI on another NSF-supported project, CyberWatch West, funded through the Advanced Technological Education program (ATE).

"Despite Silicon Valley being on the West coast, and California having the largest population of community colleges in the country, there are very few cybersecurity programs here," said Coulson.

So CyberWatch West aims to help community colleges, K-12 schools and universities link together in 13 western states to develop faculty and students in cybersecurity. The project is a resource for faculty to identify curriculum pathways and outreach, find mentors and engage students in competitions, events and presentations.

"There's such a need in the Los Angeles and Orange County areas," said Coulson. There are something like 2,500 open positions, and we're graduating 200 kids."

Bringing together cybersecurity, law and digital forensics

Also responding to the need for a cybersecurity workforce prepared to deal with today's complex problems is an SFS project for undergraduates and graduate students at the University of Illinois, Urbana-Champaign (UIUC). The project has graduated 25 students who are already working in government (reflecting another 100 percentage placement rate), and another 20 are set to graduate next May.

Since last year, this project offers scholarships to law students as well as engineering and computer science students. According to PI Roy Campbell, few lawyers understand cybersecurity and few computer scientists understand the legal framework involved in prosecuting and preventing cyber crimes.

The first law student to be accepted in the program, Whitney Merrill, is a recent law school graduate currently practicing as an attorney while completing her master's in computer science at UIUC. She found the combination of cybersecurity and law in the UIUC program to be valuable.

"The two fields are fiercely intertwined," said Merrill. "Understanding both fields allows me to better serve and advocate for my clients. Additionally, I hope to be able to help the two communities more effectively communicate with each other to create tools and a body of law that reflects accurately an understanding of both law and technology."

Merrill found the program challenging at first.

"But my interest and love for the subject matter made the challenging workload (29 credits last semester) enjoyable," she added. "Working towards a mastery in both fields has also helped me to spot legal issues where I would not have before."

Next summer Merrill will be working as a summer intern at the Federal Trade Commission in their Division of Privacy and Identity Protection. She graduates in December 2015.

With additional NSF support, a new related program in digital forensics at UIUC has the goal of building a curriculum that will teach students about cybersecurity in the context of the law enforcement, the judicial system, and privacy laws.

"Digital forensics is not the sort of area a computer scientist can just jump into," Campbell said. "It's not just malware or outcropping of hacking techniques. It has to be done in a deliberate way to produce evidence that would be acceptable to courts and other entities."

Co-PI Masooda Bashir says digital forensics gets to the heart of the multidisciplinary nature of cybersecurity.

"If you think about the amount of digital information that is being generated, exchanged, and stored daily you begin to understand the impact that the field of Digital Forensics is going to have in the coming years, " she said. "But Digital Forensics (DF) is not only a technical discipline, but a multidisciplinary profession that draws on a range of other fields, including law and courtroom procedure, forensic science, criminal justice and psychology."

She added, " I believe it is through integration of such relevant nontechnical disciplines into the DF education we can help students develop the comprehensive understanding that they will need in order to conduct examinations and analyses whose processes and findings are not just technically sound, but legal, ethical, admissible in court, and otherwise effective in achieving the desired real-world goal."

As the new program evolves, Masooda is drawing on her background as a computer scientist/psychologist to add the psychology of cybercrime to the curriculum. She's also working on a project examining cybersecurity competitions to understand their impact on the cybersecurity workforce and also to better understand the psychological factors and motivations of cyber security specialist and hackers.

Students with an interest in cybersecurity can start planning now

The U.S. Office of Personnel Management maintains a website where students can get information of SFS and the institutions that are participating in it. Meanwhile, PIs can update their project pages and agency officials can check resumes for students with the qualifications they need.

In the evolving field of cybersecurity, individuals with technical skills and knowledge of the social and legal context for what they do will continue to be highly desirable workers

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