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Articles 6931 - 6960 of 37178

Full-Text Articles in Electrical and Computer Engineering

Sunsat Design Competition 2014-2015 Second Place Winner – Team Sunflower: Thermal Power Satellite, Keith Henson, Steve Nixon, Kris Holland, Anna Nesterova Nov 2021

Sunsat Design Competition 2014-2015 Second Place Winner – Team Sunflower: Thermal Power Satellite, Keith Henson, Steve Nixon, Kris Holland, Anna Nesterova

Online Journal of Space Communication

Space-based Solar Power has failed to be competitive on cost in spite of decades of study. A new approach appears to resolve the cost issue, undercutting coal and opening huge markets for low cost solar power from space. There are two parts to the problem. First is the cost of lifting parts to Geosynchronous Earth Orbit (GEO; second is the mass of parts that make up a power satellite.

Our team is proposing a combination that makes use of Skylon to Low Earth Orbit (LEO), and a 15,000 ton payload ground powered electric propulsion from LEO to GEO. This strategy …


Sunsat Design Competition 2013-2014 Third Place Winner – Team University Of North Dakota: Nano Ssp Satellite, Corey Bergsrud, Robert Bernaciak, Ben Kading, John Mcclure, Jeremy Straub, Subin Shahukhal, Karl Williams Nov 2021

Sunsat Design Competition 2013-2014 Third Place Winner – Team University Of North Dakota: Nano Ssp Satellite, Corey Bergsrud, Robert Bernaciak, Ben Kading, John Mcclure, Jeremy Straub, Subin Shahukhal, Karl Williams

Online Journal of Space Communication

This work presents the conceptualization of a Space-to-Space Microwave Wireless Power Transmission (S2S-MWPT) experimental demonstration mission using small spacecraft. Literature reviews [1, 2] suggest a stepwise procedure for technology demonstrations in support of advancing space solar power satellite (SSPS) systems. These technologies should be verified first on Earth and then in-space using small satellites. This project built its S2S-MWPT demonstration concept within the University NanoSat program restrictions (dimensions of 50cm x 50cm x 60cm and mass of 50kg). The idea is to use these upper limit restrictions to develop the MWPT spacecraft (MicroSat). Contained inside the MicroSat …


Sunsat Design Competition 2013-2014 Second Place Winner – Team Solar Maximum Llc: Sun-Synchronous Orbits, Danny R. Jones, Anna Nesterova Nov 2021

Sunsat Design Competition 2013-2014 Second Place Winner – Team Solar Maximum Llc: Sun-Synchronous Orbits, Danny R. Jones, Anna Nesterova

Online Journal of Space Communication

The orbital location of PowerSats plays a critical role in determining the mass of the solar power satellite (PowerSat) transmitter and the size of the rectenna on the Earth’s surface. These in turn play an important role in the cost of deploying the PowerSat, especially the cost of launching the PowerSat into orbit as the transmitter makes up a large part of the PowerSats mass. We will consider a new approach to PowerSat orbital positioning by considering a circular sun-synchronous orbit at 5,185.3 kilometers with an inclination of 142.1 degrees. Locating the PowerSat at this location offers several benefits and …


Sunsat Design Competition 2013-2014 First Place Winner – Team Rajiv Gandhi University: Helioastra, Akhil Raj Kumar Kalapala, Krishna Bhavana Sivaraju Nov 2021

Sunsat Design Competition 2013-2014 First Place Winner – Team Rajiv Gandhi University: Helioastra, Akhil Raj Kumar Kalapala, Krishna Bhavana Sivaraju

Online Journal of Space Communication

HelioAstra is a creative design and visualization of an advanced Space Solar Power system. Its concept is validated by a credible science and engineering approach and an innovative business plan.

The space and ground receiving segments are made up of high efficiency Fresnel lens concentrator quantum dot solar cells. The solar array in space is sized at 933 m2. It delivers 1 MW (1000 kW) of perennial, clean and eco-friendly solar electric power at the bus-bars on the ground.

A solid state laser system containing Neodymium doped Yttrium Aluminium garnet (Nd: Y3Al5O12) will accurately and efficiently transmit power. A ground …


Predicting Student Success In An Electrical Engineering Program, Edward Carl Greco Jr., Matthew Garett Young Nov 2021

Predicting Student Success In An Electrical Engineering Program, Edward Carl Greco Jr., Matthew Garett Young

Faculty Publications - Electrical Engineering

Successful completion of course of study leading to graduation in electrical engineering was found to be linked to a couple of key gateway courses. Students that performed below a threshold in these early courses had a lower probability of graduating and could then be identified for additional assistance. Based on these results, changes were implemented in the curriculum to enhance student success in these preliminary courses to facilitate retention.


Aesculus Chinensis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Aesculus Chinensis, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Crataegus Laevigata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Crataegus Laevigata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Parthenocissus Inserta, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Parthenocissus Inserta, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Quercus Alba, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Quercus Alba, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Quercus Shumardii, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Quercus Shumardii, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Styrax Obassia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Styrax Obassia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Viburnum Rhytidophyllum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Viburnum Rhytidophyllum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Aesculus_Flava, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Aesculus_Flava, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Aesculus_Hippocastamon, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Aesculus_Hippocastamon, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Betula_Nana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Betula_Nana, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Chaenomeles_Japonica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Chaenomeles_Japonica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Euonymus_Verrucosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Euonymus_Verrucosa, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Fagus_Silvatica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Fagus_Silvatica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Juglans_Cinerea, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Juglans_Cinerea, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Lavandula_Angustifolia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Lavandula_Angustifolia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Maclura_Pomiferamale, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Maclura_Pomiferamale, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Magnolia_Macrophylla, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Magnolia_Macrophylla, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Phellodendron_Amurense, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Phellodendron_Amurense, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Platanus_Acerifolia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Platanus_Acerifolia, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Quercus_Acutissima, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Quercus_Acutissima, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Quercus_Falcata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Quercus_Falcata, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Spiraea_Vanhouttei, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Spiraea_Vanhouttei, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Styrax_Japonica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Styrax_Japonica, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Aesculus_Octandra, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Aesculus_Octandra, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.


Codiaeum_Variegatum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar Nov 2021

Codiaeum_Variegatum, Viraj Kishorkumar Gajjar, Anand Nambisan, Kurt Louis Kosbar

Plant Identification in a Combined-Imbalanced Leaf Dataset -- Images

No abstract provided.