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Keywords: material properties
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Journal Articles
J Exp Biol (2019) 222 (23): jeb210807.
Published: 04 December 2019
...: Cuticular hydrocarbons protect insects from desiccation and allow chemical communication, and contain both liquid and solid parts. This complex phase behaviour appears vital to ensure biological functioning. Ants Viscosity Melting point Lipid layer Material properties Phase behaviour...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (4): jeb190595.
Published: 25 February 2019
... properties of macroalgal tissues, the interplay of these factors as they change seasonally and affect algal mechanical performance has not been worked out. We used the perennial kelp Egregia menziesii to study how the material properties of the rachis supporting a frond changed seasonally over a 2 year...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (12): 1833–1842.
Published: 15 June 2016
.... Flexibility Calliarthron cheilosporioides Material properties Viscoelasticity Creep Stress relaxation Stress recovery Ecological mechanics The seaweeds of wave-swept rocky shores inhabit one of the most physically stressful environments on Earth. For example, when the tide is in, intertidal...
Journal Articles
J Exp Biol (2015) 218 (17): 2775–2781.
Published: 01 September 2015
... of Biologists Ltd 2015 Summary: Experiments with transparent microstructured substrates show that the compliance of cockroach adhesive pads is age dependent and increases when shear forces are applied. Biomechanics Adhesion Insect cuticle Material properties Surface roughness Wear...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (22): 4256–4263.
Published: 15 November 2013
... biomechanics material properties The sand tiger shark, Carcharias taurus Rafinesque 1810, is a large lamniform species found sporadically in temperate and tropical coastal waters throughout the world ( Compagno, 2001 ). The conservation status of various populations ranges from ‘near threatened...
Journal Articles
J Exp Biol (2009) 212 (10): 1442–1448.
Published: 15 May 2009
... modiolus Linnaeus) and two epifaunal mytilids ( Mytilus californianus Conrad and Mytilus edulis Linnaeus). We compared material properties with and without the assumption that changes of length and area during tensile testing are insignificant, demonstrating that previous researchers have overestimated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (10): 1449–1454.
Published: 15 May 2009
... significantly weaker than mytilid threads. Atrina rigida threads were significantly less extensible than mytilid threads, while C. mitis threads exhibited the highest extensibility ever recorded for the distal region of byssal threads. However, there were also interesting similarities in material properties...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (9): 1413–1420.
Published: 01 May 2009
... that material properties were a selective pressure in the evolution of this unusual skeletal material. The acellular ribs of Myoxocephalus polyacanthocephalus are curved, hollow beams that decrease in size both distally and posteriorly along the rib series. First and second moments of area decreased distally...
Journal Articles
J Exp Biol (2008) 211 (21): 3421–3432.
Published: 01 November 2008
... ) 6 9 2008 © The Company of Biologists Limited 2008 2008 adaptation biomechanics Calliarthron decalcification drag flexibility geniculum intertidal macroalgae material properties modulus Researchers have long studied morphological adaptations that allow intertidal...
Journal Articles
J Exp Biol (2008) 211 (21): 3433–3441.
Published: 01 November 2008
...-mail: pmartone@interchange.ubc.ca ) 6 9 2008 © The Company of Biologists Limited 2008 2008 adaptation biomechanics breaking stress Calliarthron decalcification drag flexibility geniculum intertidal macroalgae material properties The intertidal zone of rocky...
Journal Articles
J Exp Biol (2006) 209 (10): 1996–2003.
Published: 15 May 2006
... of seasonal changes in the material properties of byssal threads to an annual cycle in mussel attachment strength. Tensile mechanical tests were performed seasonally, on both newly produced threads and on threads outplanted in the field for up to nine weeks. Threads produced in spring were over 60% stronger...
Journal Articles
J Exp Biol (2006) 209 (9): 1678–1689.
Published: 01 May 2006
... 2006 2006 algae allometry biomechanics breaking stress Calliarthron coralline algae decalcification drag force geniculum intertidal material properties risk Organisms that live in wave-exposed, intertidal habitats must contend with remarkable mechanical stresses on a daily...
Journal Articles
J Exp Biol (2004) 207 (2): 285–293.
Published: 15 January 2004
...-distal material property changes are small and seem unlikely to affect flight performance of barbs. Our observations of barb bending, breaking and morphology, however,lead us to propose a design principle for barbs. We propose that, by being thicker-walled dorso-ventrally, the barb's flexural stiffness...
Journal Articles
J Exp Biol (2002) 205 (16): 2479–2488.
Published: 15 August 2002
... the force range by which the claw can interact with a substrate, forces generated by the freely moving legs were measured using a load cell force transducer. To obtain information about material properties of the claw, its mechanical strength was tested in a fracture experiment, and the internal structure...
Journal Articles
J Exp Biol (2002) 205 (10): 1355–1362.
Published: 15 May 2002
..., but a coherent story is beginning to emerge. The combined effect of frond shape and material properties ensures that algae are flexible. In small individuals, flexibility allows the plant to reorient and reconfigure in flow, thereby assuming a streamlined shape and reducing the applied hydrodynamic force...