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Surface density Subject

The average Sherwood number, Shiv, and average limiting current density, iljmjav, can be obtained by integrating Eqs. (40)-(41) over the electrode surface. The results for a hemisphere, whose entire surface is subject to mass transfer are ... [Pg.182]

Surface cracks migration products roughness accumulation of degradation products oxidizer concentration owing to moisture localized dewetting All surface and sub-surface changes that effect reflected radiation density Subjective observations traveling mechanisms required... [Pg.243]

Liquids exhibit many characteristics that help us understand their natures. We have already mentioned their low compressibility, lack of rigidity, and high density compared with gases. Many of the properties of liquids give us direct information about the forces that exist among the particles. For example, when a liquid is poured onto a solid surface, it tends to bead as droplets, a phenomenon that depends on the intermolecular forces. Although molecules in the interior of the liquid are completely surrounded by other molecules, those at the liquid s surface are subject to attractions only from the side and from... [Pg.768]

We typically infuse 0.1nM of Fi into an observation chamber of height SOpm. If all are attached, the surface density would be of the order of 1 molecule/pm. In fact, only on lucky days do we observe as many as tens of rotating probes in a field of view some (300 pm). Most of the motors are inactive, or fail to bind the probe which is huge compared to the motor size of lOnm, in a configuration that allows unhindered rotation. Of those that rotate, we select those few that rotate fast, smooth, and with 120° symmetry (see below). Due to this subjective selection, ensemble statistics in our work is unreliable though we make every effort to increase the number of selected to convince ourselves that we are not reporting artifacts. Our statistics relies on repeated behaviors of a selected molecule we analyze many consecutive revolutions without eliminating an event in the sequence. [Pg.272]

The nucleation density of diamond on a pristine Si wafer surface is in the order of only 10 /cm. Since the average distance between diamond nuclei is 10 pm, it is virtually impossible to make a continuous film on this substrate. To increase the nucleation density, the Si surface is mechanically polished with diamond powder or paste. Alternatively, the Si substrate is immersed in alcohol with diamond powder suspension, and ultrasonicated. As a result, the Si surface is subject to mechanical... [Pg.12]

At a larger distance from the surface, r = a + d and beyond, only ions undergoing electrostatic interactions with the surface and subject to thermal colUsions with the molecules of solvent are located, and they are in fact distributed over a certain distance to the solid. This third layer in the ionic distribution can be characterized by a volume charge density p(r), although it is of practical use to introduce a diffuse charge density ovj, located at d, according to [5,8] ... [Pg.46]

According to this model, intrinsic viscosity depends not only on the molecular weight but also on the specific volume of the macromolecule and the shielding ratio, de Gennes considered this a model of porous sponge with uniform density. The monomers inside the sponge are screened from the flow. Only those on the surface are subject to friction. [Pg.179]

The geometrical (slenderness, area, surface density, cohesion, thickness), chemical, microstructural (texture, inclusion, crack) and microelastic (Young s micro-module, nano-hardness) particularities of each family of third body show very considerable shear, and even flow (Figure 8). These particularities observed on the surface or in section highlight the same consequences as that of the accommodation of the difference of speed between the wheel and the rail, and consequently the volume of material subject to adhesion. [Pg.849]

Unfortunately, however, one cannot subject a liquid surface to an increased pressure without introducing a second component into the system, such as some inteit gas. One thus increases the density of matter in the gas phase and, moreover, there will be some gas adsorbed on the liquid surface with a corresponding volume change. [Pg.55]


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See also in sourсe #XX -- [ Pg.199 ]




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