Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Human productivity in space and systems costs.

R H Miller1

  • 1Massachusetts Institute of Technology, Cambridge 02139, USA.

Acta Astronautica
|October 1, 1995
PubMed
Summary

Human productivity in space assembly is influenced by fatigue and learning. Reduced launch costs may increase the significance of in-orbit assembly expenses in overall system costs.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stillbirth (co)variance components for a sire-maternal grandsire threshold model and development of a calving ability index for sire selection.

Journal of dairy science·2007
Same author

Voluntary waiting period and adoption of synchronized breeding in dairy herd improvement herds.

Journal of dairy science·2007
Same author

Effects of nonadditive genetic interactions, inbreeding, and recessive defects on embryo and fetal loss by seventy days.

Journal of dairy science·2006
Same author

Development of a national genetic evaluation for cow fertility.

Journal of dairy science·2004
Same author

Relationship of test-day somatic cell score with test-day and lactation milk yields.

Journal of dairy science·2004
Same author

Paths to reducing medical injury: professional liability and discipline vs. patient safety--and the need for a third way.

The Journal of law, medicine & ethics : a journal of the American Society of Law, Medicine & Ethics·2002

Area of Science:

  • Space operations
  • Human factors engineering
  • Cost analysis

Background:

  • Human productivity in orbit is constrained by physiological and learning factors.
  • Previous studies indicated minimal impact of assembly on system costs due to high launch expenses.

Purpose of the Study:

  • To quantify the impact of fatigue, metabolic rates, learning, and techniques on in-orbit assembly productivity.
  • To analyze the relationship between space assembly productivity and overall system costs.
  • To evaluate how decreasing transportation costs affect the economic viability of space assembly.

Main Methods:

  • Testing in NASA MSFC Neutral Buoyancy Simulator.
  • Experiments conducted during parabolic flight on NASA KC-135.
  • In-space evaluations during the EASE program on Shuttle Atlantis mission 61-B.

Main Results:

  • Demonstrated surprisingly high productivity during in-orbit assembly operations.
  • Assembly operations had a small effect on system costs at existing launch cost levels.
  • Updated analyses incorporating additional cost elements and reduced transportation costs.

Conclusions:

  • Assembly operations' impact on system costs is currently minimal due to high launch expenses.
  • As launch costs decrease, in-orbit assembly costs are projected to become a more significant factor in total system costs.
  • Further research is needed to optimize space assembly efficiency and cost-effectiveness.

Related Experiment Videos