Schenectady Amateur Radio Association

K2AE Repeater

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Archives for April 2023

General Meeting Monday April 17, 2023 at 7:00PM

April 11, 2023 by John Comanzo

This SARA meeting will be held at the Alplaus Fire House and will also be available via Webex

7:00—8:30 PM ………….Speaker Presentation

(Link to be sent out separately prior to the meeting)

Light Interaction and Human Health/Circadian Rhythm

Speaker: James Murphy

Abstract:
Artificial lighting was one of the foundational businesses that started GE, and the evolution from incandescent to fluorescent to LED-based lighting has improved the energy efficiency of lighting products dramatically. Additionally, new LED-based lighting applications such as the backlight for displays (smart phones, monitors, laptops, tablets, TVs) are becoming more ubiquitous every year. This talk moves beyond energy efficiency of artificial lighting/displays to discuss how human health and circadian rhythm may be influenced by light.

About our speaker:
Jim Murphy received his Ph.D. in Physical Chemistry from the University of Colorado at Boulder under the supervision of Professor Arthur Nozik conducting research on the synthesis and characterization of semiconductor nanocrystals for solar cell applications.

He spent 2006 as a postdoctoral researcher at the National Renewable Energy Laboratory conducting femtosecond, time-resolved spectroscopy studies on nanocrystalline films. He was then hired as a Research Scientist by OSRAM Sylvania Inc., where he spent the next 3 years working on phosphor development and at the Towanda, PA facility as it transitioned to become Global Tungsten and Powders Corp.

For the past thirteen years he has worked at GE Global Research Center on various programs, mostly relating to energy efficient LED lighting and display applications as well as scintillator development/medical imaging. He has over 80 patent applications and publications in the field of inorganic luminescent materials.

Jim graduated in 1996 with a B.A. in Chemistry from Franklin and Marshall College and spent a few years teaching high school chemistry and serving as a wrestling coach before attending graduate school .

Note: The meeting location is 309 Alplaus Ave, Alplaus, NY, and the building is at the corner of Alplaus Avenue and Bruce Drive. Please park in the paved lot adjacent to this building. Do not park in the restricted area in front of the building that houses the fire trucks. We will meet in the Multipurpose Room (entrance is on the North side of this building).

Filed Under: Announcements

About SARA

The Schenectady Amateur Radio Association (SARA) was established in 1930. The club station, K2AE, is the Henry Primm Broughton Memorial Station. SARA operates repeaters on  2 meters (147.06 MHz.), and on 70 centimeters (444.200 MHz.) which are located at the top of Crawford Hill in Schenectady County near New York State Thruway exit 26.

The club is an American Radio Relay League (ARRL) affiliate and has about 100 members from all over New York State’s Capital District (Albany, Schenectady, Troy), and beyond.

For additional information about the ARRL see https://arrl.org

Last updated: 31-August-22