Results 171 to 180 of about 249,997 (379)
A study on ballistic performance of origami sandwich panels
, 2021 Jianjun Zhang, G. Lu, Ying Zhang, Z. You
semanticscholar +1 more source
Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone
Journal of Field Robotics, EarlyView.ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown +8 more
wiley +1 more source
Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review
SmartBot, EarlyView.Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen +7 more
wiley +1 more source
When does category spanning hurt or help producers?
Strategic Management Journal, EarlyView.Abstract Research Summary Scholars have theorized many factors shaping whether category spanning helps or hurts producers. We first synthesize evidence by meta‐analyzing 25 years of empirical research, which reveals a null effect of spanning on average, yet with significant subsample heterogeneity. To unpack it, we theorize and find that spanning hurts
Jungsoo Ahn +2 more
wiley +1 more source
Collective Modes and Ballistic Expansion of a Fermi Gas in the BCS-BEC Crossover [PDF]
, 2004 Hui Hu +3 more
openalex +1 more source
Small, EarlyView.A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal +3 more
wiley +1 more source
Controlled Formation of Carbon Nanotubes and Nanotube Junctions from Bilayer Graphene
Small, EarlyView.Twisted bilayer graphene is cut using a scanning transmission electron microscope to create individual chiral carbon nanotubes and interconnected nanotube junctions. The sculpting is facilitated by in situ heating and automated beam control. Bilayer graphene ribbons with a width of less than approximately 4 nm spontaneously convert to CNTs, while no ...
Michael Schlegel +3 more
wiley +1 more source
Ballistic Trauma-Considerations for the OrthoPlastic Surgical Team
, 2018 Jowan G. Penn-Barwell
openalex +2 more sources
MODELING TRANSPORT OF HIGH-INTENSITY ION BEAM WITH BALLISTIC FOCUSING [PDF]
, 2018 Chan Mi Kim Anh +2 more
openalex +1 more source