Surface

Microstructure of Al micro-graphite composite 1,2 wt% respectively at sliding speed 1200 m, at contact load 40 N Fig.10 a,b: shows the worn out surface of the micro-graphite content at 3,4 wt% respectively composites. Fig. 10 shows the worn surface morphology of the composites containing different amounts of graphite particles tested under dry sliding conditions. The worn surface of Al–3 wt. % graphite is covered with a black film and the grooves are smaller in comparison to the Al–1 wt.%…

layer of baking soda on the surface letting it sit for 20 minutes then rework the cleaning with a micro fiber…

miles in diameter) and has a dense atmosphere with evidence of surface liquid. Commonly described as a planet-like moon, it is 50% larger than earth’s moon and larger than Mercury. Observations reveal that Titan orbits Saturn once every 15 days and 22 hours and if a person is standing on its surface, Saturn subtends an arc of 5.09 degrees. The surface is smooth but some areas have mountains and craters. Titan is tidally…

first task, when students were asked what a specific surface would look like at different scales, mostly all of the students knew that it would zoom in to the atomic level. Even though they knew this, they didn’t know at what length scale that would occur (Corpuz, Rebello 4). Later in the studies, student’s knowledge of friction was tested. They were asked to pull a wooden block across another wooden surface and then across a sandpaper surface (Corpuz, Rebello 4). By doing this experiment they…

For every field of study the reason behind it is to acquire knowledge. It differs in the form of morals, abilities and outlooks. Predominantly we study marine science to be enabled to function definitely in the marine science sector, so that the eligible individuals will have a vital level of theoretical understanding and practical expertise to institute a prosperous career in the marine sector with associated industries. Ocean is a diverse universe on its own with abundant extraordinary…

They have developed many adaptations to exploit the resources in the water. Fish’s gas exchange surface is always moist because it constantly has water flowing over it. Gills are more efficient than lungs. If fish had lungs they would not be able to obtain enough oxygen. Ventilation is very important in fish. It is a mechanism which maintains diffusion…

CDP are viscous drag and pressure drag coefficient respectively. Subscript s used for cylinder surface. (5a) (5b) (5c) (5d) The surface average nusselt number can be evaluated as follows: (6) Where Nuθ (=hθd/k) local Nusselt number on cylinder surface and θ is angular position on cylinder…

shows a hydrophilic surface (Seyedi, Koocheki, Mohebbi, & Zahedi, 2014). The contact angle between water drop and films surface was analyzed (Table 2). For all films studied, the only reliable result of contact angle obtained was for chitosan films, on which the drop remained stable (θ=78°). Influences on contact angle values with SE incorporation was verified, with a significant decrease (P<0.05) of values in both types of films, which presented dissolution and revealing surface hydrophilic…

The figures 11-15 represent the different aspects of the left Permanent Mandibular Second Molar. Mandibular molars are the largest teeth on the mandibular arch. There is a number of three on each side of the mandible; first, second and third mandibular molars. They resemble each other in functional form, although when in comparison with each one, it’s clear the variations in the number of cusps, size, the occlusal design and the lengths and position of the roots. All mandibular molars have…

It wasn’t until almost 3 months later, when the Macondo wellhead, that is located 5,000 feet beneath the ocean’s surface, was able to be capped off. However, by this time an estimated 3.19 million barrels of oil had already leaked into the Gulf, noting this to be the worst oil spill to occur in the U.S. history. The oil spread throughout the water with some hovering on the surface forming oil slicks or in midwater. Some of the other bulk of oil ended up on the seafloor which damaged the sea…