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Week of Events
History of Antenna and Associated Engineering Technology at the Arecibo Observatory, Arecibo, Puerto Rico
The Arecibo Observatory first opened in 1963, has been named an IEEE Milestone in Electrical Engineering and Computing in 2001, and has been a marvel in engineering ever since. It has been a monumental instrument for scientific research in the fields of astronomy, planetary radar, ionospheric probing and HF heating modification, and optical probing of the atmosphere. While the science and the discoveries are well known to many, the antenna technology and engineering are equally as impressive as the discoveries. The original concept, by Prof. William Gordon in the Electrical Engineering Department at Cornell University, was for a 1000 foot parabolic dish aiming only at zenith, with no tracking capability for studies of the ionosphere with the newly developed technique of incoherent scatter radar (ISR). Fortunately, knowledge of some on-going research with spherical reflectors was suggested where the feed could be moved to slew the beam. This talk will discuss the unique designs over the years of antenna feeds and associated engineering for frequencies from HF well into the microwaves. Many upgrades occurred during these years and will be described in detail in the ways they have provided significant improvements to the Observatory’s capabilities. Most of the 430 MHz 96 foot line feed antenna broke off and fell through the dish in 2017 during Hurricane Maria. Then in December 2020, the platform fell into the dish destroying large sections of the dish and the equipment in the platform. There is so much more to tell about the engineering at Arecibo that will be the subject of this presentation. Dinner will consist of: - Chicken Bruschetta - Garden Salad - Roasted Garlic Mashed Potatoes - Honey Roasted Carrots - Assorted Dinner Rolls - Brownies Parking for the event is free and is in the parking lot south of the library. See the below map of the PSU Harrisburg for an overview on where the building and parking is located. There is a fee for the entire dinner+presentation event. There is no fee for only attending the presentation. Speaker(s): Jim Breakall, Agenda: Dinner: 6:00 - 7:00 PM Presentation: 7:00 - 8:30 PM Room: Room 101, Morrison Gallery, Bldg: Madlyn L Hanes Library (Building D), Penn State Harrisburg, 777 West Harrisburg Pike, Middletown, Pennsylvania, United States, 17507
Robotics and Artificial Intelligence
Legislation affecting Robotics and AI and how it impacts engineers working the field Speaker(s): Russ Harrison, Pittsburgh, Pennsylvania, United States
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Radiation Resistant Graphene-based photovoltaics for lunar surface applications
Radiation Resistant Graphene-based photovoltaics for lunar surface applications
Radiation resistant photovoltaics (PV) for lunar surface applications has been increasingly important for application on the lunar surface. Graphene-based Schottky diodes with semiconductor various radiation resistant layers is a promising choice for lunar PV due to (i) graphene high photon transparency (ii) and radiation resistant semiconducting layers such as GaN. We propose a G/n-GaN Schottky diode where the metal is replaced by graphene grown on top of a thin oxide layer resting on the semiconductor. Photoexcitation of carriers occurs in both graphene and the semiconductor regions. the oxide layer prevents or reduces recombination of photo-carriers. we propose a model where photo-generated electrons cross the PV device in both directions (from Gr to the semiconductor and vice versa) via two mechanisms by (a) thermionic emission and (b) quantum tunneling. We outline the method of obtaining net current densities (thermionic and tunneling). Tunneling transmission and thermionic carrier escape and current are outlined along with the advantage of high current density generation in the harsh lunar surface environment. Co-sponsored by: EDS Student Branch, Physics & Engineering Dept, University of Scranton Speaker(s): Argyrios Agenda: Professional meeting at the University of Scranton Room: 334, Bldg: Loyola Science Center (LSC), 204 Monroe Ave, Physics and Engineering Dept, University of Scranton, Scranton, Pennsylvania, United States, 18510
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IEEE Philadelphia Section Minipupper workshop
IEEE Philadelphia Section Minipupper workshop
IEEE HKN Iota Sigma Chapter would like to invite you to attend an exciting workshop to make the minipupper (robot dog) to dance autonoumous using AWS IoT Core services . Plus, you'll have the chance to win your very own minipupper kit! This workshop is designed to provide participants with an introduction to AWS tools that facilitate the seamless integration of cloud environments (AWS) with edge device operations, specifically focusing on the minipupper. Through an engaging and interactive activity, attendees will have the opportunity to make the robot dog dance to music of their choice, fostering a fun and educational experience. This workshop serves as an interactive learning opportunity for enthusiastic students and educators in the fields of robotics and IoT (Internet of Things). It offers a unique chance to explore the capabilities of AWS tools in a practical setting, enabling participants to gain hands-on experience with cloud-to-edge device integration. Additionally, this workshop serves as a precursor to the upcoming minipupper dance competition organized by the IEEE Philadelphia section. Participants will not only have the chance to compete but also stand a chance to win a complete set of minipupper or receive a monetary reward from the IEEE Philadelphia section. This competition presents a valuable opportunity for showcasing skills and creativity within the robotics community. Since the seats are limited, we encourage you to register as soon as possible. If you decide to come, please bring a laptop. Agenda: - 9:30am -10:00am registration - 10:00am-12:00pm workshop - 12:00-1:00pm lunch provided - 1:00-2:00pm demonstration - 2:00-2:30pm closing ceremony. Room: 301, Bldg: Temple University, College of Engineering, 1947 N. 12th Street, Philadelphia, Pennsylvania, United States, 19122