Beyond the relatively bump-resistant build, the company's built water repellence into the device.
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I don't agree that a lack of insurance coverage should be reason why a feature isn't included, but I guess some water-repellence is better than none.
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Montan wax in polishes improves scuff resistance, increases water repellence, and imparts high gloss.
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Noted for extreme water repellence and stain repellence siliconates are frequently used for sealing exterior concrete such as roads and driveways, tilt-up walls, porous brick, and porous stone. Siliconates and organo-siliconates have also been shown to be affective as curing agents for new concrete and certain products can comply with ASTM C309. Siloxane: Siloxane is the largest molecular compound of commonly available penetrating sealers. Although not highly reactive, chemically siloxane forms a bond within porous masonry that clots surface pores.
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Microfiber is used to make mats, knits, and weaves, for apparel, upholstery, industrial filters, and cleaning products. The shape, size, and combinations of synthetic fibers are chosen for specific characteristics, including softness, toughness, absorption, water repellence, electrostatics, and filtering ability.
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The term Salawaku means 'protection' and 'repellence': a reference to the supernatural protection of the ancestors; or 'to miss and to catch'. With this technique the defender catches his adversary's weapon, secures it in the wooden shield and then disarms him. The shield is not only a defensive weapon, but thanks to its peculiar, narrow shape may be easily moved to deliver blows with the sharp rims and corners.
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Additional studies indicate that Anchiornis had body plumage that consisted of short quills with long and independent, flexible barbs. These barbs stuck out from the quills at low angles on two opposing blades. This also gave each feather an overall forked shape and resulted in the theropod possessing a softer textured and "shaggier" appearing plumage than is seen in modern birds. 'Shaggy' contour feathers probably influenced thermoregulatory and water repellence abilities, and, in combination with open-vaned wing feathers, would have decreased aerodynamic efficiency.
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A report published in Science in 2006 demonstrated that dodder use airborne volatile organic compound cues to locate their host plants. Seedlings of C. pentagona exhibit positive growth responses to volatiles released by tomato and other species of host plants. When given a choice between volatiles released by the preferred host tomato and the non-host wheat, the parasite grew toward the former. Further experiments demonstrated attraction to a number of individual compounds released by host plants and repellence by one compound released by wheat.
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Most inorganic nanoparticles used for nanocomposite hydrogels are already present in and necessary for the body, and thus present no negative impacts on the body. Some of them, like calcium and silicon, help with preventing bone loss and skeletal development. Others, like nanoclays, improve the structural formation and characteristics of hydrogels where they acquire self-healing properties, flame retardant structures, elasticity, super gas-barrier membrane, oil-repellence, etc. The unique properties obtained by incorporating nanocomposite hydrogels with inorganic nanoparticles will let researchers work on improving bone-related tissue engineering.
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A variety of glide waxes are tailored for specific temperature ranges and other snow properties with varying wax hardness and other properties that address repellence of moisture and dirt. The hardness of the glide wax affects the melting of the snow to lubricate its passage over the surface and its ability to avoid suction from meltwater in the snow. Too little melting and sharp edges of snow crystals or too much suction impede the passage of the ski. A tipping point between where crystal type dominates sliding friction and moisture content dominates occurs around .
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Nonwoven fabrics provide specific functions such as absorbency, liquid repellence, resilience, stretch, softness, strength, flame retardancy, washability, cushioning, thermal insulation, acoustic insulation, filtration, use as a bacterial barrier and sterility. These properties are often combined to create fabrics suited for specific jobs, while achieving a good balance between product use-life and cost. They can mimic the appearance, texture and strength of a woven fabric and can be as bulky as the thickest paddings. In combination with other materials they provide a spectrum of products with diverse properties, and are used alone or as components of apparel, home furnishings, health care, engineering, industrial and consumer goods.
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Later on the adult birds usually took off from the branch supporting the nest, from neighbouring trees, or from abandoned rook (Corvus frugilegus) nests, rather than from the nest itself. Females participated more times in the defence of the nest than males, yet the ratios of the studied types of behaviour (alarm, repellence, attack) did not differ between the sexes. However, significant difference appeared to be present between four nests when the distribution frequency of the three behaviour types was looked at. The distribution of the reaction types of the parent birds to disturbance was significantly different in the periods of incubation, hatching and nestling, respectively.
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Lateral arm awnings are also known as folding arm, deck or patio awnings, as they can extend / project as far as and when several awnings are coupled together, can be as wide as or more - thus covering a large outdoor space. Normally a single folding arm awning can only span in a single system due to difficulties transporting, storing and powder coating extrusion greater than this size. The most common fabric choice for folding arm awning is solution dyed acrylic fabric that comes in a variety of styles, colours, patterns as well as performance grades for water repellence and fire retardancy. Solution dyed acrylic fabric is the most suitable fabric for use in these awnings due to dimensional properties, ease of manufacturing, weight (versus woven mesh) & high levels of filtering of and resistance against UV.
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The ability of Eph/ephrin signaling to direct migrating axons along Eph/ephrin expression gradients is evidenced in the formation of the retinotopic map in the visual system, with graded expression levels of both Eph receptors and ephrin ligands leading to the development of a resolved neuronal map (for a more detailed description of Eph/ephrin signaling see "Formation of the Retinotopic Map" in ephrin). Further studies then showed the role of Eph’s in topographic mapping in other regions of the central nervous system, such as learning and memory via the formation of projections between the septum and hippocampus. In addition to the formation of topographic maps, Eph/ephrin signaling has been implicated in the proper guidance of motor neuron axons in the spinal cord. Although several members of Ephs and ephrins contribute to motor neuron guidance, ephrin-A5 reverse signaling has been shown to play a critical role in the survival of motor neuron growth cones and to mediate growth cone migration by initiating repellence in EphA-expressing migrating axons.
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Napier grass produces significantly higher levels of attractive volatile compounds (green leaf volatiles), cues used by gravid stemborer females to locate host plants, than maize or sorghum. There is also an increase of approximately 100-fold in the total amounts of these compounds produced in the first hour of nightfall by Napier grass (scotophase), the period at which stemborer moths seek host plants for laying eggs, causing the differential oviposition preference. However, many of the stemborer larvae, about 80%, do not survive, as Napier grass tissues produce sticky sap in response to feeding by the larvae, which traps them, causing the death of about 80% of larvae. Legumes in the genus Desmodium (silverleaf, D. uncinatum and greenleaf, D. intortum), on the other hand, produce repellent volatile chemicals that push away the stemborer moths. These include (E)-β-ocimene and (E)-4,8-dimethyl-1,3,7-nonatriene, semiochemicals produced during damage to plants by herbivorous insects, which are responsible for the repellence of Desmodium to stemborers. Desmodium also controls striga, resulting in significant yield increases of about 2 tonnes/hectare (0.9 short tons per acre) per cropping season.
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