archive-edu.com » EDU » V » VMI.EDU

Total: 1240

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • Cadet Researches Polarization Using Thin Films
    unimaginable as a micron is one millionth of a meter To make the spheres into Janus particles Potter coats one half of them with a metallic layer that is currently made out of aluminum although he hopes to use gold eventually With the Janus spheres created Potter puts them on a microscope slide and uses an electrical field to control their orientation in space If all of the spheres are oriented in the correct direction that will cause polarization of the light that s being reflected off of it Potter explained Basically what we are trying to do is coat optics in these Janus particles so we can easily control their orientation and ultimately their polarization by just using an electric field Potter said that these particles could be used for the front optics of telescopes to make the analysis of polarized starlight much easier Another cadet fellow physics major Philip Wulfken 13 who just happens to be Potter s roommate is currently conducting research on the analysis of polarized starlight Potter s faculty adviser Lt Col Daniela Topasna added that using ultra small dimensions for the Janus particles delivers a key advantage when dealing with optical applications By using these particles you can reduce the size and create novel gratings so then the wavelength that can be used goes down into the visible ultraviolet spectrum she noted Topasna continued Our goal is to create grating with the metals by orienting them with an electric field More of a broad goal is to combine that type of grating with a filter Combining a filter and polarizer into one unit can save space on devices such as cameras and telescopes she explained Potter meanwhile came to VMI with a strong interest in physics He d discovered the subject while in an

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737425065 (2016-02-15)
    Open archived version from archive


  • Cadet Researches Polarization Using Thin Films
    a type of plastic The size of these Janus particles 20 microns is so small as to be almost unimaginable as a micron is one millionth of a meter To make the spheres into Janus particles Potter coats one half of them with a metallic layer that is currently made out of aluminum although he hopes to use gold eventually With the Janus spheres created Potter puts them on a microscope slide and uses an electrical field to control their orientation in space If all of the spheres are oriented in the correct direction that will cause polarization of the light that s being reflected off of it Potter explained Basically what we are trying to do is coat optics in these Janus particles so we can easily control their orientation and ultimately their polarization by just using an electric field Potter said that these particles could be used for the front optics of telescopes to make the analysis of polarized starlight much easier Another cadet fellow physics major Philip Wulfken 13 who just happens to be Potter s roommate is currently conducting research on the analysis of polarized starlight Potter s faculty adviser Lt Col Daniela Topasna added that using ultra small dimensions for the Janus particles delivers a key advantage when dealing with optical applications By using these particles you can reduce the size and create novel gratings so then the wavelength that can be used goes down into the visible ultraviolet spectrum she noted Topasna continued Our goal is to create grating with the metals by orienting them with an electric field More of a broad goal is to combine that type of grating with a filter Combining a filter and polarizer into one unit can save space on devices such as cameras and telescopes she explained

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737425065&libID=10737425059 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - Cadet Physics Project Measures Results in Nanometers
    over and over again each time adding layers Holding up a translucent orange microscope slide Firehammer said I have about 50 layers on each side about 150 nanometers A nanometer is a billionth of a meter explained Firehammer s faculty mentor Lt Col Daniela Topasna Firehammer is dipping the films both by hand and by machine to test the automatic stainer s efficiency With the machine we can dip 30 slides at any one time said Firehammer By hand even five or six gets pretty hectic Firehammer s interest in thin films originated in reports he did in his Modern Physics class He came across a project using them to make solar panels nanotechnology can make solar panels lighter cheaper and more efficient At VMI s thin films lab projects are under way using nanotechnology to make colored glass that absorbs certain wavelengths of light while allowing others through creating optical filters that can be used in instruments The same kind of technology can be used to make protective goggles Firehammer s project builds thin films using a process based on electrostatic attraction said Topasna one of only two or three methods that allow control at the nanometer level It s a method being investigated in a number of research projects all over the world at Virginia Tech and the Massachusetts Institute of Technology in Germany and in Australia In the electrostatic self assembly method the slides are dipped in positive and negative solutions alternately and the layers attract each other like magnets The nice thing about the method is it s based on a water solution you don t have to use nasty solvents said Topasna It s very environmentally friendly Topasna said nanotechnology allows the creation of films coating any size or shape the substrate or form to be coated can be anything from polyester to metal to glass to polymers And the films can be functionalized based on the materials used polymers nanoparticles proteins and DNA are among the possibilities The tendency now is to make smaller devices This is one of the methods to do that said Topasna As things get smaller you run into the problem of quantum effects Silicon technology is limited traditional methods are reaching their limit Two other thin film projects are also in progress at VMI One is creating photovoltaic films which convert solar energy into electric energy as in solar panels The other uses titania particles to create anti reflective coatings such as to evade radar transmissions Firehammer s thin films project is his second physics research project Two summers ago Firehammer s Summer Undergraduate Research Institute SURI project created a carbon dioxide laser I thought it was the coolest thing I had ever done said Firehammer All this lab work has opened up the world of physics for Firehammer who is one of only four physics majors graduating this May It s a whole world of awful math said Firehammer reflecting on the five cadets in his class who

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737430546 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - SURI Cadets Inaugural Participants in VCU-VMI Program
    ve been looking at the whole thing trying to fix issues said Tharp looking at equations Tharp s project was one of three in a new program of VMI s Department of Mechanical Engineering the VMI VCU Summer Undergraduate Research Program under which VMI and Virginia Commonwealth University jointly fund summer research projects at VCU for up to five cadets I see this program as really broadening the undergraduate research opportunities for our cadets said Col Jon Michael Hardin head of VMI s mechanical engineering department The two other cadets who completed SURI projects at VCU are Michael Everett 12 who worked with Maj Ryan Taylor at VMI and Dr Worth Longest VCU Qimonda Associate Professor of mechanical engineering on Development of Dry Powder Inhalers for Enhanced Lung Delivery and Gabriel Dongieux 12 whose project with Col Tim Hodges at VMI and Dr Karla Mossi VCU associate professor of mechanical engineering resulted in a patent application for a piezoelectric viscometer for measuring blood viscosity Hardin got the ball rolling for the two mechanical engineering majors when they and 14 others visited VCU last fall The cadets met with VCU graduate students and heard them talk about their research projects I wanted them to see beyond graduation to see the larger world and what was out there for them said Hardin pointing to the second part of this initiative which is guaranteed placing for a certain number of qualified VMI graduates in any graduate programs offered by VCU s School of Engineering Though the summer program offers new opportunities to cadets it also allows cadets to share their skills with VCU students Tharp found he had a distinct advantage because unlike some of the other students working on the simulator he had already spent a semester at VMI working with the

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737430550 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - Psychology and Philosophy Curricula
    Family Conferences Chessie Nature Trail Bookstore Resources MyVMI Directories Friendly URLs Post View Health and Safety Computing Academics Areas of Study Majors Minors Arts Humanities Engineering Information Social Sciences Life Sciences Natural Sciences ROTC Enrichment Institute Honors Program International Programs Service Opportunities Summer Programs Institute Writing Program Research Support Cadet Counseling Career Services Disabilities Services Miller Academic Center Advising Math Resource Center The Writing Center Resources Registrar Financial Aid Canvas Login Dean s Office Career Services Bookstore Cadet Computing Admissions Corps Life Athletics Library Archives Preston Library Library Home Find Books Departments Media Equipment Technical Services Visitor Information Archives Archives Home Online Exhibits VMI History FAQs Genealogy Alumni Manuscripts Civil War New Market Give Close Menu Life Sciences Psychology Degrees Programs Bachelor of Science Leadership Studies Minor Psychology Minor Courses Faculty Mitzi Waters Executive Secretary P 540 464 7194 F 540 464 7648 Virginia Military Institute 403 Carroll Hall Lexington VA 24450 Contact Psychology Home Academics Areas of Study Social Science Psychology Philosophy Degrees Programs Degrees Programs The Department of Psychology offers a Bachelor of Science degree in psychology and minors in leadership studies and psychology VMI Foundation Keydet Club Alumni Webcams Directories My VMI RESOURCES Title IX Health Safety

    Original URL path: http://www.vmi.edu/content.aspx?id=17445 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - Faculty
    Resources Registrar Financial Aid Canvas Login Dean s Office Career Services Bookstore Cadet Computing Admissions Corps Life Athletics Library Archives Preston Library Library Home Find Books Departments Media Equipment Technical Services Visitor Information Archives Archives Home Online Exhibits VMI History FAQs Genealogy Alumni Manuscripts Civil War New Market Give Close Menu Life Sciences Psychology Degrees Programs Courses Faculty Mitzi Waters Executive Secretary P 540 464 7194 F 540 464 7648 Virginia Military Institute 403 Carroll Hall Lexington VA 24450 Contact Psychology Home Academics Areas of Study Social Science Psychology Philosophy Faculty Psychology Faculty Col James T Gire Department Head Professor Ph D McMaster University Specialty Psychology of Aging Substance Abuse with Emphasis in Alcohol Tobacco Cross Cultural International Psychology E girejt vmi edu Col Gire s Website Lt Col Dave Cotting Associate Professor Ph D City University of New York Specialty Leadership Stress coping with emphasis on combat psychological well being Social personality psychology with emphasis on social identification emotion prejudice Sports Psychology cottingdi vmi edu Lt Col Scott Frein Associate Professor Ph D University of California Davis Specialty Cognitive Psychology with emphasis on the interaction of memory and attention with emotion Positive Psychology freinst vmi edu Maj Matthew S Jarman Assistant Professor Ph D Claremont Graduate University Specialty Positive psychology with emphasis on meditation mindfulness and problem solving social psychology with emphasis on entrepreneurship and group change in complex social systems and organizational behavior with emphasis on leadership in complex social systems jarmanms vmi edu Lt Col Keith Kline Associate Professor Ph D University of Tennessee Specialty Biopsychology Psychophysiology klineka vmi edu Maj Kristen Rost Assistant Professor P h D City University of New York Specialty Behavior Analysis with emphasis on organizational behavior management and the experimental analysis of human behavior rostka vmi edu Maj Sara Whipple Assistant Professor

    Original URL path: http://www.vmi.edu/Content.aspx?id=4294974346 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - Use Facebook, Lose Memory?
    Over the past few years cadets in his classes have shown an interest in discovering how this applies specifically to Facebook Samantha Jones 12 approached him about studying the effects of Facebook use on cadets This would eventually become her Summer Undergraduate Research Institute project in 2011 Cadets participating in the study were divided into two groups heavy Facebook users those on Facebook for an hour or more per day and those who used Facebook for less than an hour They were then given a memory test in which they were shown words they were to remember and then given a distractor task in this case math problems for one minute Heavy Facebook users did significantly worse on the memory test and honestly I was really surprised by this Frein said When the distractor task was increased from one minute to five minutes there was an even steeper drop in heavy Facebook users recall There was no difference in the group with low Facebook usage This research was advanced by Tyler Cross 14 in the fall of 2013 when heavy Facebook users were compared to those who reported heavy YouTube or general Internet usage Again heavy Facebook users did much worse on memory tests while general Internet usage showed virtually no effect on memory The problem with this type of research is that it really cannot tell why this is happening only that there is a correlation between Facebook usage and memory Nevertheless Frein has a few ideas on the uniqueness of Facebook We re teaching people to focus on very small amounts of information for very short times as they go from post to post the more you use Facebook the more you re training yourself that I don t have to remember this stuff he said They are becoming less and less efficient at remembering information because they re out of practice In addition to memory impairment another study by Patrick Goulden 13 in the summer and fall of 2012 sought to discover the correlation between Facebook usage and overall happiness For this study cadets were again divided into two groups they sat in a room and either checked their Facebook for 30 minutes or they sat in a room and talked to one of their friends for 30 minutes The people that used Facebook for 30 minutes showed a significant drop in their level of positive emotions explained Frein Those that were in the talking group reported less stress and anxiety and an increase in self esteem To gauge this cadets were surveyed about how they were feeling before and after the 30 minute sessions Frein hypothesizes that the reason cadets felt worse after checking their Facebook is the positivity bias that exists on the website Users generally only post the good events and news in their lives and other users compare their lives to these seemingly perfect standards Despite the negative emotions brought on by Facebook when given the choice cadets participating in the study almost

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737430948 (2016-02-15)
    Open archived version from archive

  • Virginia Military Institute - Professor Assists FBI
    24450 Contact Psychology Home Academics Areas of Study Social Science Psychology Philosophy Professor Assists FBI Professor Assists FBI in Fight Against New Tech Crimes A VMI professor was among a group of experts brought together by the U S Federal Bureau of Investigation to discuss the challenges that emerging technologies will pose in the coming years Lt Col Dave Cotting associate professor of psychology met with the group during the bureau s second annual Behavioral Informatics and Technology Studies research workshop Aug 25 29 Cotting an expert in social personality psychology contributed to the group s understanding of the people who use emerging technologies for criminal activity There are all sorts of new threats that are related to technology and cyber attacks but it s important to realize that behind each of these attacks are people engaging in criminal activity said Cotting Understanding people is necessary so it s pushing psychology and social science to the forefront in contributing to the fight against crime The workshop focused on how criminal behavior and policing methods will change in the near future because of influences from emerging technologies including developments in nanotechnology robotics avionics manufacturing and biotechnology This is new territory on how criminals threaten society said Cotting We had scientists agents analysts and others who all had some great expertise in one domain or another whether it was biotechnology energy or 3 D printing Around 50 experts attended the workshop The goal is to support the policing done by the FBI in its various missions said Cotting He is contributing to the development of a group analysis protocol a system for understanding the methods for recruiting reliable informants from within criminal groups During the workshop Cotting presented a talk on this protocol and how it fits into the context of these

    Original URL path: http://www.vmi.edu/Content.aspx?id=10737430944 (2016-02-15)
    Open archived version from archive



  •