The amount of light intercepted by vertically oriented, shingle leaves of juvenile Monstera tenuis vines growing in forest understory was compared to the amount of light the leaves would intercept if they were horizontal. Light levels were monitored using quantum sensors and hemispherical photography. Shingle leaves absorb less light than they would if the leaves were horizontal at the same pos...

In situ abrasion of shingle beach material is a neglected area of study in coastal geomorphology, with reduction in beach volumes normally attributed to longshore and offshore drift. Results from field abrasion experiments conducted on flint shingle beaches on the East Sussex coast, southern England, show that in situ reductions in volume of beach material may be more significant than has been ...

The results are described of ongoing field and laboratory experiments to estimate losses from shingle beaches due to abrasion. Field abrasion experiments of two exotic lithologies (quartzite and limestone) used as tracers on two flint shingle beaches at Telscombe and Saltdean in East Sussex, UK, have been carried out over 23 months, resulting in 985 weight loss measurements. Relationships betwe...

The origin of arthropod sound-producing morphology typically involves modification of two translating body surfaces, such as the legs and thorax. In an unusual structural rearrangement, I show that one lineage of palinurid lobsters lost an antennal joint articulation, which transformed this joint from moving with one degree of freedom into a sliding joint with multiple degrees of freedom. With ...

A wave breaking against a sea wall causes high pressure gradients to act along the sea bed, pushing objects away from the wall. This situation is modelled using pressure impulse theory to show that, for a large object near a sea wall, the impulsive force due to the wave will move the object. This force can be found, given knowledge of the added mass and volume of an object. In particular, if th...

Shingle material can appear as an excess usage due to defective production problems or at the end of their service life. Especially reuse shingle materials in bitumen has brought a different approach terms sustainability. In this study, utilization waste asphalt pavement were investigated. Mechanical properties hot mix and warm samples involving amount (1-6% by weight aggregate) evaluated. Foll...

Although considerable effort has been devoted to duplicate document detection (DDD) and its applications, there is very limited study on the optimization of its time-consuming functions. An experimental analysis which is conducted on a million Grant Proposal documents from the nsfc.gov.cn shows that even by using the clustering and the sampling methods, the speed of DDD is still quite slow. By ...