Results 181 to 190 of about 234,400 (314)

Rotating bubble membrane radiator for space applications [PDF]

open access: yes
An advanced radiator concept for heat rejection in space is described which uses a two-phase working fluid to radiate waste heat. The development of advanced materials and the large surface area per mass makes the Bubble Membrane Radiator an attractive ...
Webb, Brent J.
core   +1 more source

Impact of Seasonal Composition on the Long‐Term Performance of Post‐Consumer Recycled Polypropylene

open access: yesJournal of Applied Polymer Science, EarlyView.
Ten batches of post‐consumer polypropylene recyclate were examined over a period of 15 months. Despite identical MFR and density specifications, there were significant differences in their composition, affecting mechanical performance. Elongation at break and crack resistance varied particularly strongly.
Jessica Hinczica   +7 more
wiley   +1 more source

A heat receiver design for solar dynamic space power systems [PDF]

open access: yes
An advanced heat pipe receiver designed for a solar dynamic space power system is described. The power system consists of a solar concentrator, solar heat receiver, Stirling heat engine, linear alternator and waste heat radiator.
Baker, Karl W.   +2 more
core   +1 more source

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters   +33 more
wiley   +1 more source

Unlocking fruit dimensions: Quantification of functional traits driving plant–frugivore interactions

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Fleshy fruits attract animals to ingest fruit, swallow the seeds, and release them in the landscape, thus facilitating seed dispersal and plant regeneration. Attraction of animal dispersers is achieved via attractants such as color or scent, and rewards like sugars, lipids, and micronutrients.
Linh M. N. Nguyen   +4 more
wiley   +1 more source

Experimental methods for wind tunnel studies of seed dispersal by wind

open access: yesApplications in Plant Sciences, EarlyView.
Abstract The complexity and variability of natural environments make quantitative studies of seed wind dispersal challenging. Wind tunnel experiments offer a controlled alternative to investigate the mechanisms of seed wind dispersal. This review focuses on wind tunnels and the associated technologies used for studying seed wind dispersal, including ...
Liang Tian   +5 more
wiley   +1 more source

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