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Operations Research, Systems Engineering and Industrial Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
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- Space vehicles -- Water-supply (2)
- Water reuse -- Techniques (2)
- Astronauts -- Health risk assessment (1)
- International Space Station -- Equipment and supplies -- Evaluation (1)
- Life support systems (Space environment) -- Design and construction (1)
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- Organic water pollutants -- Analysis (1)
- System theory (1)
- Systems engineering -- Case studies (1)
- Systems engineering -- Methodology (1)
- Systems engineering -- Philosophy (1)
- Technological forecasting (1)
- Telecommunication (1)
- Water -- Carbon content -- Measurement (1)
- Wireless communication systems (1)
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Articles 1 - 5 of 5
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
A Look Into The Future Of Wireless Mobile Communication Technologies, Jisun Kim, Tugrul Unsal Daim, Timothy R. Anderson
A Look Into The Future Of Wireless Mobile Communication Technologies, Jisun Kim, Tugrul Unsal Daim, Timothy R. Anderson
Engineering and Technology Management Faculty Publications and Presentations
The number of wireless mobile communication service subscribers has reached 4.6 billion worldwide in 2009, and mobile revenues are expected to be over $1 trillion around 2012 according to the International Telecommunication Union (ITU) (ITU, 2010). A significant number of studies have been done to forecast the growing market and evaluate the new generation technology, the Beyond 3 Generation (B3G). However, there is no study forecasting when any of these new technologies will be commercialized. This paper presents a technical framework for forecasting the commercialization timeline of B3G technologies and provides insight on technology trajectories from 1G to 4G. The …
How A Systems Engineer Starts..., Herman Migliore
How A Systems Engineer Starts..., Herman Migliore
Systems Science Friday Noon Seminar Series
Dr. Migliore will review systems engineering as a process for developing products, processes, and services and suggest views that encourage systems thinking. As an example, he will focus on the beginning of the development process, the fuzzy front end, and discuss a method, ConOps, for getting started using examples from PSU's masters program.
Developing Sustainable Life Support System Concepts, Evan A. Thomas
Developing Sustainable Life Support System Concepts, Evan A. Thomas
Mechanical and Materials Engineering Faculty Publications and Presentations
Sustainable spacecraft life support concepts may allow the development of more reliable technologies for long-duration space missions. Currently, life support technologies at different levels of development are not well evaluated against each other, and evaluation methods do not account for long-term reliability and sustainability of the hardware. This paper presents point-of-departure Sustainable System Mass (SSM) evaluation criteria for life support systems that may allow more robust technology development, testing, and comparison. An example sustainable water recovery system concept is presented.
Second-Generation International Space Station Total Organic Carbon Analyzer Verification Testing And On-Orbit Performance Results, Nicole L. Bentley, Evan A. Thomas, Michael Van Wie, Chad Morrison
Second-Generation International Space Station Total Organic Carbon Analyzer Verification Testing And On-Orbit Performance Results, Nicole L. Bentley, Evan A. Thomas, Michael Van Wie, Chad Morrison
Mechanical and Materials Engineering Faculty Publications and Presentations
The International Space Station (ISS) total organic carbon analyzer (TOCA) is designed to autonomously assess recovered water quality by providing an indication of total organic carbon (TOC). The current TOCA has been on the ISS since November 2008. Functional checkout and operations revealed complex operating considerations. Specifically, failure of the hydrogen (H2) catalyst resulted in development of an innovative oxidation analysis method. This method reduces activation time and limits the H2 produced during analysis, while retaining the ability to indicate TOC concentrations within 25% accuracy. Subsequent testing and comparison to archived samples returned from the station and tested on the …
Development Of A Contingency Capillary Wastewater Management Device, Evan A. Thomas
Development Of A Contingency Capillary Wastewater Management Device, Evan A. Thomas
Mechanical and Materials Engineering Faculty Publications and Presentations
The personal body-attached liquid liquidator (PBALL) is conceived as a passive, capillary-driven, contingency wastewater disposal device. In this contingency scenario, the airflow system on the NASA crew exploration vehicle is assumed to have failed, leaving only passive hardware and vacuum vent to dispose of wastewater. To meet these needs, the PBALL was conceived to rely on capillary action and urine wetting conditions from 0° < θadv ∼ 90°, be adaptable for both male and female use, collect and retain up to 1 L of urine, minimize splash-back, and allow continuous draining of the wastewater to vacuum while minimizing cabin air loss. A subscale PBALL test article, which was tested on NASA's reduced-gravity aircraft in April 2010, successfully demonstrated key components of this design.