منابع مشابه
Insect aquaplaning: Nepenthes pitcher plants capture prey with the peristome, a fully wettable water-lubricated anisotropic surface.
Pitcher plants of the genus Nepenthes have highly specialized leaves adapted to attract, capture, retain, and digest arthropod prey. Several mechanisms have been proposed for the capture of insects, ranging from slippery epicuticular wax crystals to downward-pointing lunate cells and alkaloid secretions that anesthetize insects. Here we report that perhaps the most important capture mechanism h...
متن کاملPredicting Aquaplaning Performance from Tyre Profile Images with Machine Learning
The tread of a tyre consists of a profile (pattern of grooves, sipes, and blocks) mainly designed to improve wet performance and to inhibit aquaplaning by providing a conduit for water to be expelled underneath the tyre as it makes contact with the road surface. Testing different tread profile designs is time consuming, as it requires fabrication of a tyre set using the tread profile, followed ...
متن کاملLeaf Roll-Up and Aquaplaning in Strong Winds and Floods
The submitted fluid dynamics video (see larger and smaller sized versions) shows roll-up and aquaplaning in tree and vine leaves in both strong winds and water flows. The specific goal of this work is to determine how leaves roll up into drag reducing shapes during storms and aquaplane above the water surface during floods. In addition to gaining insight into mechanical adaptation in the natura...
متن کاملReal-time estimation of aquaplaning with an optical tyre sensor
Future active safety systems will require more accurate information about the state of a vehicle and the operating conditions of an individual tyre. Aquaplaning is a dangerous situation in which the contact between the tyre and the road is partially or completely lost. In this paper, the movements of the inner liner of the tyre during aquaplaning are measured optically and exploited to estimate...
متن کاملAnti-Slide
The anti-slide packing is a packing of a number of three dimensional pieces of same size into a larger box such that none of them can slide in any direction. In this paper, we consider the problem of how to find a sparsest anti-slide packing. We give an IP formulation of this problem, and obtain the solutions for some small cases by using an IP solver. In addition, we give the upper and lower b...
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ژورنال
عنوان ژورنال: BMJ
سال: 1990
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.300.6736.1401-c