Gary V. StephensonWisk Aero Mountain View CA · Systems Engineering
Gary V. Stephenson
MEng, Systems Engineering
About
39
Publications
16,947
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265
Citations
Introduction
Aerospace Systems Engineer engaged in aerospace related applied physics and systems engineering research and development.
Skills and Expertise
Additional affiliations
May 2015 - present
Collins Aerospace, Houston, TX, United States
Position
- Systems Engineer
Description
- Planning and executing space suit and life support systems design, development, and deployment for the human exploration of cislunar space, the Moon, Mars, Europa, and beyond.
July 2010 - May 2015
USAF, Space and Missile Command
Position
- Contractor, LinQuest Senior Principal Engineer II
Description
- Planning and developing future space procurement options for the US Air Force Space Command.
Education
June 2008 - June 2011
June 1979 - June 1983
Publications
Publications (39)
Recommendations for integrating MHD technology into aerospace applications
Gravitomagnetic Field Generation using High Permittivity Materials in SMES Devices
Modeling a 10cm SMES device with high index materials as a way to generate a measurable gravitomagnetically generated unbalanced force
Summary of the EMU spacesuit and how its used with the ISS for spacewalks
Sonofusion, also known as bubble fusion, is the name for a nuclear fusion reaction hypothesized to occur during a high-pressure version of sonoluminescence. By applying this phenomenon, the researchers caused bubbles in the deuterated acetone liquid with oscillating sound waves to expand and then violently collapse for producing a flash and enormou...
Summary of gravitational work including:
1) Proposed HFGW detector
2) Proposed HFGW generator
3) Forward coil scalar gravitational generator
4) possible impact of high index materials & metamaterials
Prepub of a laboratory gravitomagnetic generator. Appearing in JHEPGC in 2019.
Proposal for Laboratory Generated Gravitomagnetic Field Measurement
Trip report and meeting minutes from the 3rd International HFGW Workshop
A method is described for creating a low frequency gravitational wave, or a gravitational impulse at an arbitrary impulse pulse repetition rate PRR, using two nearly matched High Frequency Gravitational Wave (HFGW) waveforms F 1 ϕ 1 and F 2 ϕ 2 , where each HFGW signal is at nearly the same frequency F in the GHz range, at phases ϕ 1 and ϕ 2 , and...
Applications of James Grier Miller's Living Systems Theory are explored for environmental control and life support systems (ECLSS) associated with the transport of a human crew on a mission to and from Mars, and for maintaining the life and health of the crew on the surface of Mars. Processors of matter-energy are considered for ECLSS, and processo...
Sonoluminescence is an emission of light from a collapsing bubble under ultrasound. Experimental results obtained in various fluids showed that collapsing bubbles with maximum diameters of 100 microns emit flashes of light with blackbody temperatures of 5500 °c during rapid shrinking to sizes of less than one micron in radius. It was also discovere...
Human rating requirements are explored for space systems associated with the transport of a human crew for missions to and from Mars. Human rating certification requirements guidance is given by NPR 8705.2B and broadly speaking consists of four steps: step 1, comply with human rating certification processes; step 2, develop and comply with a refere...
Human Certification Requirements for Missions to Mars - Presentation
A proposal for using X-ray pulsar sensor data for navigation during missions to Mars
With the assumption that the current mission of the International Space Station (ISS) will draw to a close by 2020, redeployment options are explored and contrasted for ISS components in the post-2020 timeframe. Low Earth Orbit (LEO) redeployment options explored include a depot assembly facility and a refueling facility. Beyond LEO redeployment op...
This document will out line what the authors suppose is relevant to squeezed states of initial space time and how that affects both the composition of relic GW, and also gravitons. A side issue to consider is if gravitons can be configured as semi classical "particles" , which is akin to the Pilot model of Quantum Mechanics as embedded in a larger...
A coupling system between Gaussian type-microwave photon flux, static magnetic field and fractal membranes (or other equivalent microwave lenses) can be used to detect high-frequency gravitational waves (HFGWs) in the microwave band. We study the signal photon flux, background photon flux and the requisite minimal accumulation time of the signal in...
Many design and operations challenges have been met and surmounted by four decades of work on low frequency gravitational wave (LFGW) detection schemes such as mass-resonance bars, mass resonance spheres, and interferometers. This design and operations experience could be leveraged to benefit a new class of high frequency gravitational wave (HFGW)...
For the past decade the Peoples Republic of China has been increasingly active in the pursuit of High-Frequency Gravitational Wave (HFGW) research. Much of their progress has been during 2008. An epochal achievement was the publication of the theoretical analysis of the Li-Baker HFGW detector in the European Physical Journal C (Fangyu L, (2008), "P...
The Standard Quantum Limit defines the lower sensitivity limit for all measurement instruments, including gravitational‐wave detectors, according to the Heisenberg uncertainty principle In this paper, the standard quantum limit (SQL) is explored for the Li‐Baker synchro‐resonance HFGW detector design. The effects of quantum back action are scaled u...
We consider the electromagnetic (EM) perturbative effects produced by high-frequency gravitational waves (HFGWs) in the GHz
band in a special EM resonance system, which consists of fractal membranes, a Gaussian beam (GB) passing through a static
magnetic field. Under the synchro-resonance condition, coherence modulation of the HFGWs to the preexist...
We consider the electromagnetic (EM) perturbative effects produced by the high-frequency gravitational waves (HFGWs) in the GHz band in a special EM resonance system, which consists of fractal membranes, a Gaussian beam (GB) passing through a static magnetic field. It is predicted, under the synchroresonance condition, coherence modulation of the H...
The paper discusses the proposed improvement of a High-Frequency Relic Gravitational Wave (HFRGW) detector designed by Li, Baker, Fang, Stephenson and Chen in order to greatly improve its sensitivity. The improved detector is inspired by the Laser Interferometer Gravitational Observatory or LIGO, but is sensitive to the high-frequency end of the gr...
The theoretical concept underlying two laboratory high-frequency gravitational wave or HFGW generator designs or devices is presented. The generators are of two types: laser-target and piezoelectric or Film Bulk Acoustic Resonators (FBARs). The laser-target device is energized by ultra-high-intensity lasers and the FBAR device is energized by a myr...
Trip report and meeting minutes from the 2nd International HFGW Workshop
The emerging technology of gravitational wave control is used to augment a communication system using a development roadmap suggested in Stephenson (2003) for applications emphasized in Baker (2005). In the present paper consideration is given to the value of a High Frequency Gravitational Wave (HFGW) channel purely as providing a method of frequen...
An update to the version presented in 2005, about the Gertsenshtein Effect and its possible use. Eqn 1 & 2 have since fallen into doubt, however the notion of quadrupole rectification (figure 7) still has validity if GW generators are rotated slightly to point radiation peak and this rotation is phased with the generation of peak GW wave.
A comparison of the measured Biefeld Brown Effect and the measured global circuit electric field shows several parallels. Both exhibit diurnal variations, and both show a dependence on thunderstorm activity. Based on an analysis of experimental data taken on the Biefeld Brown effect, a case is made for describing this effect as a secondary electros...
A possible demonstration configuration of the Gertsenshtein Effect is analyzed. In 1960, using only General Relativity, the Russian theorist M. E. Gertsenshtein described the revolutionary concept that light passing through a strong magnetic field will produce a gravitational wave via wave resonance. The generation and control of gravitational wave...
Popular Science article about the quadrupole rectification of alternating gravitational waves
A development roadmap is suggested for the application of High Frequency Gravitational Waves (HFGW) in the field of communications. Necessary theoretical development must include electromagnetic (EM) to gravitational wave (GW) coupling for HFGW transmitters, and GW to EM response for HFGW detectors before a communication system can be designed. An...
EXECUTIVE SUMMARY • An international group has been formed to study the possibility of the laboratory generation of gravitational waves (GW). • High frequency gravitational waves (HFGW) should be easier to generate due to better coupling between GW and ElectroMagnetic (EM) energy / matter. • The Russians had been working in the area prior to the fa...
Both thresholding and windowing are important tools in the reduction of false alarm rates in high sensitivity point source detection and correlation sensor signal processors. In a variable background environment, adaptive thresholding is required to maintain a constant false alarm rate, and in a variable target environment, adaptive windowing is he...