Results 141 to 150 of about 17,794 (305)
A polarimeter for the high resolution ultraviolet spectrometer/polarimeter [PDF]
, 1980 The design requirements of the polarimeter were established by the scientific optical objectives of the experiment to be launched aboard the Solar Max Mission which will study active solar regions.
Calvert, J. A.
core +1 more source
Micro‐transitions and work identity: The case of academic entrepreneurs
Strategic Entrepreneurship Journal, EarlyView.Abstract Research Summary This paper examines how academic entrepreneurs—scientists who found research‐based startups while remaining in academia—construct and sustain their professional identities amid frequent transitions between academic and entrepreneurial roles.
Marouane Bousfiha, Henrik Berglund
wiley +1 more source
Life analysis of helical gear sets using Lundberg-Palmgren theory [PDF]
A mathematical model is developed for surface fatigue life of helical gears. The expected fatigue life of a pinion, gear, or gear set may be calculated from the model. An equation for the dynamic capacity of a gear set was also derived.
Coy, J. J., Zaretsky, E. V.
core +1 more source
Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source
The role of thermal and lubricant boundary layers in the transient thermal analysis of spur gears [PDF]
An improved convection heat-transfer model has been developed for the prediction of the transient tooth surface temperature of spur gears. The dissipative quality of the lubricating fluid is shown to be limited to the capacity extent of the thermal ...
Akin, L. S. +3 more
core +1 more source
Design of an advanced 500-hp helicopter transmission [PDF]
, 1983 High contact ratio spar gears planetary, spiral besel gears, bearings, investment-cast planet carrier, and investment cast stainless-steel housings are ...
Battles, R. A., Braddock, C. E.
core +1 more source
Concussed: Unintended Consequences of the Guardian Cap Mandate in the NFL
Southern Economic Journal, EarlyView.ABSTRACT Guardian Caps are padded shells worn over American football helmets to cushion impacts and reduce concussion risks. In 2022, the NFL mandated their use for specific position groups during preseason practices, later expanding this requirement. While the league praised the Caps for enhancing player safety, skeptics argue they may promote riskier
Kerianne Lawson Rubenstein, Todd Nesbit
wiley +1 more source
Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab
Symbolic Interaction, EarlyView.How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz +2 more
wiley +1 more source
Dynamics of a split torque helicopter transmission [PDF]
, 1992 A high reduction ratio split torque gear train has been proposed as an alternative to a planetary configuration for the final stage of a helicopter transmission. A split torque design allows a high ratio of power-to-weight for the transmission.
Krantz, Timothy, Rashidi, Majid
core +2 more sources
Symbolic Interaction, EarlyView.In this paper, we use Goffman's notion of “face work” to examine how pipeline engineers perform and present their working selves as competent experts. Our analysis identifies various faces and face work tactics, including a focus on professional judgment, actively selling one's expertise relative to others, protective self‐deprecatory strategies, and ...
Sarah Maslen +2 more
wiley +1 more source