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Articles 1 - 30 of 54

Full-Text Articles in Physics

Solar Cells, D. Venkataraman Jan 2019

Solar Cells, D. Venkataraman

Science and Engineering Saturday Seminars

Solar cells convert the sun's energy into electrical energy. In this workshop, I will discuss the processes involved in solar cell and various types of solar cells that are being developed as an alternative to silicon solar cells. I will also demonstrate how students can build a solar cell from readily available materials.


Computational Techniques For Scattering Amplitudes, Juliano A. Everett Dec 2018

Computational Techniques For Scattering Amplitudes, Juliano A. Everett

Publications and Research

Scattering amplitudes in quantum field theory can be described as the probability of a scattering process to happen within a high energy particle interaction, as well as a bridge between experimental measurements and the prediction of the theory.

In this research project, we explore the Standard Model of Particle Theory, it’s representation in terms of Feynman diagrams and the algebraic formulas associated with each combination.

Using the FeynArts program as a tool for generating Feynman diagrams, we evaluate the expressions of a set of physical processes, and explain why these techniques become necessary to achieve this goal.


Overview, Benjamin Davidovitch, Narayanan Menon, Jennifer Welborn, Wayne Kermenski Jan 2017

Overview, Benjamin Davidovitch, Narayanan Menon, Jennifer Welborn, Wayne Kermenski

Patterns Around Us

No abstract provided.


Superhero Robotics, Frank Sup, Brian Umberger, Nick Sawyer Jan 2017

Superhero Robotics, Frank Sup, Brian Umberger, Nick Sawyer

Science and Engineering Saturday Seminars

No abstract provided.


Information Literacy & Open Access For Physics And Astronomy Graduate Students, Jackie K. Werner Oct 2015

Information Literacy & Open Access For Physics And Astronomy Graduate Students, Jackie K. Werner

University Library Faculty Presentations

This presentation covers research on the physics and astronomy graduate students’ use and understanding of open access resources. The research, which was conducted in summer 2015, surveyed the physics and astronomy graduate students of Georgia Institute of Technology to discover how graduate students discover open access and other academic resources, as well as their level of awareness about open access in general and specific OA databases in particular. The research also included an interview with the graduate studies advisor in the Physics & Astronomy department Georgia Tech. The presentation also describes open access resources in Physics and Astronomy and relates the ...


Size Matters, Morton Sternheim Jan 2015

Size Matters, Morton Sternheim

Nanotechnology Teacher Summer Institutes

Size matters in the way materials behave. An introductory PowerPoint and an activity write-up. Three activities illustrate how the surface to volume ratio changes as the size changes. In the first, a deck of playing cards is used to make square arrays of cards of increasing size. Next wooden cubes are used to make similar observations in 3 dimensions. Finally, comparing the rates at which an intact Alka Seltzer tablet and a crushed tablet react in water shows the effect of particle size on chemical reactions.


Nanoscale Thin Films, Rob Snyder Jan 2015

Nanoscale Thin Films, Rob Snyder

Nanotechnology Teacher Summer Institutes

An activity that makes a nanoscale film of oleic acid on water. The student will

  • Learn about Ben Franklin’s observations of a thin film that had a nanoscale dimension.

  • Create a very thin film with a very dilute solution of oleic acid.

  • Use data you collect to determine if you made a thin film with a nanoscale dimension that formed on the surface of water.

  • Learn about the molecular interactions that resulted in the formation of the thin film.

  • Be introduced to the Big Ideas of Nanoscale Self-Assembly


Powers Of Ten: From Meters To Nanometers And Beyond, Rob Snyder Jan 2015

Powers Of Ten: From Meters To Nanometers And Beyond, Rob Snyder

Nanotechnology Teacher Summer Institutes

The goal of this activity is to guide students toward an understanding of nanoscale dimensions by:

  • Making a number of measurements using meter sticks, magnifiers, microscopes and spectrometers so students can make observations and generate their own data.

  • Using scientific notation to compare the measurements they have made with the dimensions of very small structures


Gelatin Diffusion Experiment, Jennifer Welborn Jan 2015

Gelatin Diffusion Experiment, Jennifer Welborn

Nanotechnology Teacher Summer Institutes

In this activity, nanotech participants will:

- See how food dyes and gelatin are used to model the delivery of nanoscale medicines to cells in the human body - Measure diffusion distances of 3 different colors of food dye by: Eye, photo image on a computer, ADI software (Analyzing Digital Images) Some useful websites:


The Science Of Two Dimensional Materials (Powerpoint), Jun Yan Jan 2015

The Science Of Two Dimensional Materials (Powerpoint), Jun Yan

Nanotechnology Teacher Summer Institutes

Graphene is a single atomic sheet of graphite.

Exercise: how much graphene do we need to cover the surface of the empire state building?


Atomic Force Microscopes, Rob Snyder, Jennifer Welborn Jan 2015

Atomic Force Microscopes, Rob Snyder, Jennifer Welborn

Nanotechnology Teacher Summer Institutes

PowerPoint overview. A student activity that builds an atomic force microscope model.


Ozone, Uv, And Nanoparticles, Morton Sternheim, Jennifer Welborn Jan 2015

Ozone, Uv, And Nanoparticles, Morton Sternheim, Jennifer Welborn

Nanotechnology Teacher Summer Institutes

•Ultraviolet light causes skin damage and cancer •Ozone in the stratosphere blocks UV •Sunscreen blocks UV, partly •Nanoparticles in sunscreen improve blocking Sunscreen PowerPoint and activities based on NanoSense web site:

http://nanosense.sri.com/activities/clearsunscreen/index.html


Self Assembly, Mark Tuominem, Jennifer Welborn, Rob Snyder Jan 2015

Self Assembly, Mark Tuominem, Jennifer Welborn, Rob Snyder

Nanotechnology Teacher Summer Institutes

No abstract provided.


Nanomedicine, Mark Tuominen Jan 2015

Nanomedicine, Mark Tuominen

Nanotechnology Teacher Summer Institutes

An overview of nanomedicine. The end goal of nanomedicine is improved diagnostics, treatment and prevention of disease. Nanotechnology holds key to a number of recent and future breakthroughs in medicine.


Nanotechnology Overview Powerpoint, Mark Tuominen Jan 2015

Nanotechnology Overview Powerpoint, Mark Tuominen

Nanotechnology Teacher Summer Institutes

Nanotechnology is the understanding and control of matter at dimensions of roughly 1 to 100 nanometers, where unique phenomena enable novel applications. This PowerPoint gives an overview of the field and introduces the teacher summer institute.


Magnetic Memory: Data Storage And Nanomagnets, Mark Tuominem Jan 2015

Magnetic Memory: Data Storage And Nanomagnets, Mark Tuominem

Nanotechnology Teacher Summer Institutes

An overview of magnetic data storage and a simple activity.


Producing Electricity With Solar Cells, Chris Emery, Rob Snyder Jan 2015

Producing Electricity With Solar Cells, Chris Emery, Rob Snyder

Science and Engineering Saturday Seminars

No abstract provided.


Two-Dimensional Electron Gases At The Surface Of Potassium Tantalate, Ben Pound Aug 2014

Two-Dimensional Electron Gases At The Surface Of Potassium Tantalate, Ben Pound

Browse All Undergraduate research

No abstract provided.


Open Source Electronics For Laboratory Physics, Zengqiang John Liu Jul 2014

Open Source Electronics For Laboratory Physics, Zengqiang John Liu

Physics and Astronomy Faculty Presentations

Open-source electronics are electrical circuits and devices whose designs are released to the public by the designers, so others may modify and improve them. Using open-source data acquisition electronics in laboratory physics will dramatically reduce the cost of laboratory electronics and empower instructors to develop new laboratory activities, demonstrations and exploratory projects with students. This workshop will improve participants' understanding of open-source electronics and their applications in laboratory physics. Many laboratory physics sensors and open-source devices will be introduces and demonstrated. The workshop provides hands-on experiences in projects using laboratory physics sensors with an award-winning, low-cost, open-source electronic data acquisition ...


Imaging Molecular Structures With Atomic Force Microscopy, Unurbat Erdenemunkh, Tyler Flanagan Oct 2013

Imaging Molecular Structures With Atomic Force Microscopy, Unurbat Erdenemunkh, Tyler Flanagan

Student Works

As part of the LEEP project we repaired the Atomic Force Microscopy (AFM), and wrote a user manual on using AFM. Then we scanned Self Assembly of Copolymer Films collaboration with Prof. Sergio Granados –Focil and Copper Oxide Nanocubes with Professor Prof.Luis Smith.


Pre-Breakdown Arcing In Dielectrics Under Electric Field Stress, Allen Andersen, Jr Dennison Oct 2013

Pre-Breakdown Arcing In Dielectrics Under Electric Field Stress, Allen Andersen, Jr Dennison

Graduate Student Presentations

No abstract provided.


Electrostatic Discharge In Solids, Allen Andersen, Jr Dennison Oct 2013

Electrostatic Discharge In Solids, Allen Andersen, Jr Dennison

Graduate Student Presentations

No abstract provided.


Charge Transport And Electrical Degradation Research For Power Grid Applications, Allen Andersen, Jr Dennison Apr 2013

Charge Transport And Electrical Degradation Research For Power Grid Applications, Allen Andersen, Jr Dennison

Graduate Student Presentations

No abstract provided.


Making Solar Cells, D. Venkataraman Jan 2013

Making Solar Cells, D. Venkataraman

Nanotechnology Teacher Summer Institutes

Overview of solar energy and photovoltaic cells. Making a cuprous oxide cell activity.


Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin Jul 2012

Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin

Education and Outreach

This exhibition, presented in the Merrill-Cazier Library, captured the history and accomplishments of the GAS program. Click the download button to see a PowerPoint presentation featuring images and text from the exhibition.


Comparison Of Saber Oh Measurements To Rocket Photometry Data, Jordan Rozum, Gene A. Ware, Doran J. Baker Apr 2012

Comparison Of Saber Oh Measurements To Rocket Photometry Data, Jordan Rozum, Gene A. Ware, Doran J. Baker

Browse All Undergraduate research

No abstract provided.


The Dream Is Alive, Mark T. Vande Hei Jan 2012

The Dream Is Alive, Mark T. Vande Hei

Physics Lectures

Lt. Colonel Mark Vande Hei earned a Bachelor of Arts degree in Physics from St. John’s University (1989), ROTC commissioning in the U.S. Army, and a Master of Science degree in Applied Physics from Stanford University (1999). Mark has served and trained in many locations around the world, and taught Physics at the U.S. Military Academy, West Point, New York. Joining NASA’s Mission Control Center in 2006, Mark specialized in spacecraft communications. He was selected in 2009 as a member of the 20th NASA astronaut class, completed his training in June, 2011, and is now qualified ...


Wind Power, Susn Reyes Jan 2012

Wind Power, Susn Reyes

Science and Engineering Saturday Seminars

No abstract provided.


K-X-Ray Emission In Fast O5+ On Ar Collisions, Tamer Elkafrawy Apr 2011

K-X-Ray Emission In Fast O5+ On Ar Collisions, Tamer Elkafrawy

Research and Creative Activities Poster Day

The goal of the present work is to observe x-rays from oxygen for the purpose of investigating resonant-transfer and excitation (RTE) [1], and projectile and target x-ray emission resulting from inner-shell capture. Projectile energies in the range 5-25 MeV will be examined to investigate RTE for heavy targets [2,3].


Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman Mar 2011

Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman

Presentations

The motivation of this nucleate boiling research is to understand the effects of surface geometry and heat flux as applied to a thin wire heater. This will further the understanding of the fundamental behaviors of boiling onset, steady state heat transfer, and bubble dynamics with respect to nucleate boiling with the goal of creating efficient thermal management systems for future space applications. Using three different thin platinum wire geometries and five different power levels, subcooled water was boiled over a period of approximately 30 seconds for 15 parabolic arcs to simulate microgravity. To represent the trends in bubbles behavior across ...