Articles with "umbrella shaped" as a keyword



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A novel family of umbrella-shaped deployable mechanisms constructed by multi-layer and multi-loop spatial linkage units

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Published in 2021 at "Mechanism and Machine Theory"

DOI: 10.1016/j.mechmachtheory.2020.104169

Abstract: Abstract This paper aims to construct a novel family of umbrella-shaped deployable mechanisms based on new multi-layer and multi-loop spatial deployable linkage units. Firstly, a general method is proposed for analyzing the degree-of-freedom (DOF) of… read more here.

Keywords: deployable mechanisms; multi loop; multi layer; layer multi ... See more keywords

Developmental sequence of the syncarpous gynoecium of Sarracenia purpurea (Sarraceniaceae) with flattened and broadened carpels and an umbrella-shaped style

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Published in 2020 at "Botany"

DOI: 10.1139/cjb-2020-0011

Abstract: The umbrella-shaped style of Sarracenia has a flattened and broadened distal half forming an umbrella canopy and a slender cylindrical proximal half, forming an umbrella stalk. The developme... read more here.

Keywords: flattened broadened; sarracenia; umbrella shaped; shaped style ... See more keywords
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A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

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Published in 2018 at "Radioengineering"

DOI: 10.13164/re.2018.0448

Abstract: A compact (35 mm × 30 mm × 0.8 mm) co-planar waveguide fed ultra-wideband antenna with bended ground plane suitable for GPR applications is proposed in this article. The umbrella shaped radiating element is constructed… read more here.

Keywords: frequency selective; frequency; selective surface; umbrella shaped ... See more keywords