cct reu: interdisciplinary research experience in...

CCT REU: Interdisciplinary Research Experience in Computational Science

Jesse Allison & Juana Moreno Staff: Kathy Traxler

Andrew Pfalz

CCT: Center for Computation & Technology

REU/REHSS

•  Welcome •  Introductions

Center CCT: Center for Computation & Technology

Events and Meetings

•  Mentor Presentations EVERY Tuesday 3PM DMC 1008B •  Student Updates EVERY Friday 3PM DMC 1008B •  Managing Stress Lecture – July 18, 3 pm, 1008B DMC •  Physics & Astronomy Night – June 29, 5 pm Nicholson Hall •  LIGO Visit – June 17 •  CAMD Visit – some Monday in June! •  Guest Speaker – Gabriela Gonzalez – 5 pm Wed. July 26 •  Poster Review Sessions, Tuesday/Friday 3 pm, 1008B DMC

–  July 21, Lead: Edgar Berdahl –  July 25, Lead: Peter Diener


CCT REU Guest Researcher

Required Meetings Digital Media Center 1008B

Tuesdays, 3 p.m. Mentor Presentations

May 30: Hartmut Kaiser & Jesse Allison June 6: Mayank Tyagi & Dan Shanahan June 13: David Koppelman & Peter Diener June 20: Graduate Student Mentors: Aisha Ali-Gombe & Amanda Diegel June 27: Shawn Walker & Ken Lopata July 11: Edgar Berdahl, Yorgos Veronis & Golden Richard July 18: Managing Stress Seminar July 25: Final Poster Review/Feedback: Peter Diener, Jesse Allison, Juana Moreno


Fridays, 3 p.m. Student updates

May 26: Hartmut Kaiser June 2: Mayank Tyagi June 9: Dan Shanahan June 16: Peter Diener June 23: Shawn Walker June 30: Ken Lopata July 7: Edgar Berdahl July 14: Yorgos Veronis July 21: Poster Review: Edgar

Berdahl & Juana Moreno

Optional Training •  HPC Training, Frey 307

–  5/24: Intro to Linux –  5/25: Introduction to Python –  5/26: Intermediate Python (Numpy) –  6/7: HPC user environment 1 –  6/12: Running Jobs on HPC using the Agave Platform –  6/14: HPC user environment 2 –  6/21: Intro to LaTex

http://www.hpc.lsu.edu/training/tutorials.php •  Python Review w/ Kathy Traxler – 6/5, 9:30 DMC 1008B


Optional Training •  6th Annual LONI Parallel Programming Workshop, May 29-30 @ BEC, room 1615 – register at

http://www.hpc.lsu.edu/training/workshop.php •  NVIDIA 2-Day Deep Learning Workshop, 5/31-6/1 @ BEC,

room 1615 – register at http://www.hpc.lsu.edu/training/workshop.php


Student Presentations •  Initial Presentations (Project Outline):

– Tuesday June 6, 9AM – Noon DMC Theater

– 7 min presentation + 3 min Q&A •  Final Presentations:

– Wednesday July 26, 9AM – Noon, DMC Theater

– Formal 7 min + 3 min Q&A Slideshow Presentation

–  Special guest: Gabriela Gonzalez


•  Summer Undergraduate Research Forum •  July 28, open to the public •  Poster presentation from all 100+ REU students at LSU •  Highest Ranked CCT REU posters will be awarded a

travel grant for international/national conferences


REU SURF

Mentoring

Mentors should: •  Spend adequate time with their students •  Provide a space to work •  Be present at the two formal presentations and at the SURF •  Deliver a Tuesday seminar talk and lead a Friday Update.


Mentoring

•  If the mentor travels during the program, he/she has to assign another mentor in his/her research group, who is familiar with the participant’s project, such as a graduate student, postdoc, or other faculty member.

•  Mentors are invited to all academic, cultural, and social activities in which the students participate.


Surveys •  CCT Students:

– Start and end of program, a La Carte survey – From the NSF CISE, nationwide, based at UNC

•  Longitudinal: keep in touch •  Mentors will fill out surveys, too!


Other Activities •  DMAE Movie Night – June 1! •  NOLA Visit – June 3! •  LIGO Visit – June 17 •  Astronomy Night – June 29 •  DMAE Game Night – July 14 •  Softball game – Students vs. Mentors TBA •  CAMD Tour – June... •  Swamp tour? Tiki tubing? Canoeing? Hiking? •  Suggestions?


Calendar •  Calendar of activities at http://reu.cct.lsu.edu


Mailing Address

•  Mailing address: – Jesse Allison

Attention: Your Name 340 E. Parker Blvd. Digital Media Center Louisiana State University Baton Rouge, LA 70803


Participants with Cars


•  Corey Matyas •  Anna Neshyba •  Ethan Seal •  Daniel Schmidt •  Braden Weight •  Herschel Young

Bus Route


Tiger Trails, interactive map: http://lsu.transloc.com/ From WCA to the DMC - Purple Trail: https://sites01.lsu.edu/wp/tigertrails/purple-trail/ •  5 min walk (0.2 mi) from WCA to bus stop (corner of

Field House Dr. and Dalrymple Dr.) •  9 minute ride to DMC

Campus Transit


•  This is a door-to-door shuttle service, free of charge, that runs nightly from 5:30 p.m. to 12:30 a.m. Students can access this service by calling (225) 578-5555.

Enhancing Tangible Tokens Through Additive Manufacturing and Capacitive Sensing Mark Delarosa1, Alexandre Siquiera2, Chris Branton2, Brygg Ullmer2

1 Solano Community College, Fairfield, CA 94534 2 Center for Computation and Technology, Louisiana State University, Baton Rouge, LA 70808

Tokens are physical artifacts that serve as a tangible depiction of an object, place or emotion. Tokens are items typically used to access information, everyday tokens are credit cards or board game pieces. These tokens operate the poster by acting as an intermediate between a tablet and personal computer. Revolving a token can transition through the poster’s pages, among other functions. Tangibles tokens have even been shown to develop participation and attraction in museums.

Introduc)on Results

Additive manufacturing (3D-printing) is a mechanical process that generates a three-dimensional body. This is done by “slicing” the virtual model into two-dimensional segments and then printing the actual object layer by layer. Nearly any model of distinct geometry or shape can be constructed by way of additive manufacturing. The tokens for this project were constructed from three different 3D printers: the Lulzbot, Makerbot, and Voxel8.

Addi)veManufacturing

Acknowledgements

Discussion

Method

Figure 1: Top Hat token from the MonopolyTM board game

Namea (3)

Polycarbonate Screw

b Lasermax Acrylic

c Upper Acrylic

d (3) Steel Hex Nut

e Steel Shim f Center Acrylic

g (3) Fiber Tips

h Lower Acrylic

i (3) Rivet Nut

j Rubber Tips k Token Body

Figure 4: Comparison between the previous acrylic token and newer

3D printed token

Figure 7: Three part configurable token

Figure 3: Snapshot of Solidworks on computer desktop

Dr. Edgar Berdahl, Professor, Center for Computation and Technology, LSU Dr. Becky Carmichael, CxC Coordinator, LSU Eric Sheffield, Graduate Student, School of Music, LSU Randy Dannenberg, Faculty, Center for Computation and Technology, LSU This material is based upon work supported by the National Science Foundation under award OCI-1560410 with additional support from the Center for Computation & Technology at Louisiana State University

Figure 5: Solidworks rendered vibrotactile token

Figure 9: Musical Token

Fabricating a token requires a source 3D model. To design the tokens I primarily used Solidworks, a solid modeling program. Building the model requires an analysis of the geometry of the intended shape as well as awareness of the units of the design. Once the model is finished it is imported into a machine’s respective 3D print preparation software, ready to be produced.

The previous acrylic design yielded several issues. Some included: •  Number of materials •  Complexity •  Convenience

As shown in Figure 4, the amount of materials needed to construct an acrylic token are substantial relative to the 3D printed counterpart (19 vs. 4, respectively). All pieces to the acrylic token must manually assembled. A 3D printed token requires no external tools, and can be printed on-site within an hour. The level of complexity to a 3D printed token’s design is limited to that of one’s 3D printer and CAD (Computer Aided Drafting) skills. Once an elementary design for a 3D printed token was achieved, the next purpose was to add additional features to the token.

Vibrotactile Token

Configurable Token

Musical Token

By augmenting these tokens, connections between content and their audience may greatly increase. tokens that this research is concerned with are those that navigate interactive posters, specifically the Entrada platform. This project’s approach is to enhance the previous design of a token by facilitating feedback, altering the materials, and extending the medium in which they are produced.

Lulzbot Makerbot Voxel8

Despite the positive outcomes, there are caveats to 3D printing. Although a user may print onsite, they must still wait one to two hours for the fabrication to complete. Printing filament also deviates between printers. The Makerbot seamlessly extrudes ABS, but is lackluster in regards to printing PLA. With the Lulzbot, when printing material that is not conductive PLA, its support structures (scaffolding that holds the print in place) are rigid and difficult to remove.

Figure 2: The Entrada platform for digital posters

For this prototype, the motivation is to incorporate a feedback system onto the tokens. Placed in the center of the tangible is a permanent magnet. The magnet’s purpose is to reverberate the token, producing haptic feedback. The magnet’s vibration is a result from the electromagnetic field generated by the system in Figure 6. The token must be in close proximity to this structure for the feedback to be felt. Other conditions, such as the token’s weight and the strength of the electromagnetic field, also affect the presence of haptic feedback.

The configurable token is designed to incorporate a more advanced tangible, or “smart” token. For instance, the token is built to house an Arduino monitor (Fig. 7). It also consists of several other components (Fig. 8), including a gesture sensor. Upon placing the piece onto a colored surface this sensor will react to a pigment, prompting an actively mediated response from the integrated display surface.

The Musical Token was constructed by the Voxel8, which prints both nonconductive and conductive materials. For this token, the wiring serves as a capacitive-sensing factor. Erecting from Fig. 9 is an edge connector which is tethered to a Raspberry Pi. Upon touching different locations along the sides, different a musical notes are played. While this token does not function with the poster, it does serve as a precursor to more advanced token capabilities.

Figure 10: Musical Token set-up

Figure 6: Vibrotactile token set-up

The filaments used to create the tokens were two plastics, ABS (Acrylonitrile Butadiene Styrene) and conductive PLA (Polylactic Acid). Conductive PLA facilitates capacitive sensing, allowing our tokens to realize digital functions (e.g., navigating a digital poster). ABS became useful for design as an economical, complementary medium to our use of functional conductive PLA.

Figure8:Configurabletoken’scomponents

ReferencesJ. Ma, L. Sindorf, I. Liao, I., and J. Frazier. (2015). Using a tangible versus a multi-touch graphical user interface to support data exploration at a museum exhibit. In Proc. of TEI'15, pp. 33-40. B. Ullmer, H. Ishii, and R. Jacob. (2003). Tangible query interfaces: physically constrained tokens for manipulating database queries. In Proc. of INTERACT?03, pp. 279?286. C. Valdes, D. Eastman, C. Grote, et al. (2014). Exploring the design space of gestural interaction with active tokens through user-defined gestures. In Proc. of CHI?14, pp. 4107?4116 J. Zigelbaum, M. S. Horn, O. Shaer, and R. Jacob. (2007). The tangible video editor: collaborative video editing with active tokens. In Proc. of TEI'07, pp. 43-46.

For our tokens to further progress, we envision: •  Extending the token’s feedback mechanisms;

•  Construct an active token from the Voxel8 which requires no outside wiring labor;

•  Explore alternative designs to the current knob/dial, like

composition exhibited by the token; •  Consider some method, possibly using a rotary tumbler, to polish

or blend the token’s additive layers.

FutureWork

Figure10:Rotarytumbler

Figure 11: Token’s additive layers

Next Steps •  Meet with your Research

Mentor •  Make a research plan for the

summer leaving room for any writing, presentation and poster development that must occur.

•  Attend the Research Training Thursday, 1:00-3:00 @ Life Sciences Annex room 101A

•  Identify and schedule any further training that you need to be involved in over the next few weeks – Make sure and register

•  Settle in and get to know your fellow REU participants

•  Familiarize yourself with LSU, Baton Rouge, the DMC and getting around.

•  Research!

Questions?


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