Liquid internal mechanism

A study of how a sohd dries may be based on the internal mechanism of liquid flow or on the effec t of the external conditions of temperature, humidity, air flow, state of subdivision, etc., on the diying rate of the sohds. The former procedure generally requires a fundamental study of the internal condition. The latter procedure, although less fundamental, is more generally used because the results have greater immediate application in equipment design and evaluation. 

All these factors are the external variables. The internal mechanism of liquid flow does not affect the constant rate. 

Theoretical descriptions of absolute reaction rates in terms of the rate-limiting formation of an activated complex during the course of a reaction. Transition-state theory (pioneered by Eyring "", Pelzer and Wigner, and Evans and Polanyi ) has been enormously valuable, and beyond its application to chemical reactions, the theory applies to a wider spectrum of rate processes (eg., diffusion, flow of liquids, internal friction in large polymers, eta). Transition state theory assumes (1) that classical mechanics can be used to calculate trajectories over po-... 

In dealing with Boussinesq s problem, Lord Rayleigh used the amount of heat H (measuring unit calorie) as one of the then used base dimensions. Only since the introduction of SI (Systeme International d Unites) it was required to make no distinction between heat and mechanical energy, because both were considered to be equal. In order to comply with this requirement, the Joule equivalent of heat J [M L2 T2 H-1] had to be introduced as a natural constant in the relevance list. If we proceed from the assumption of an inviscid , ideal liquid, no mechanical heat can be converted into heat. In this case, J is irrelevant. 

The effects of gas velocity and pressure on liquid mixing can be explained based on the mixing mechanisms of gross liquid circulation and local turbulent fluctuations. The available theories in the literature describing liquid mixing under atmospheric pressure are based on liquid turbulence induced by rising bubbles (Baird and Rice, 1975), large-scale liquid internal circulation (Joshi, 1980), or a combination of these two... 

The detector is designed to serve as an on-the-spot sensor for identification of unknown solid or liquid substances for the existence of CWAs, dmgs, bioagents, and TICs, all within a few minutes. The HazMat ID is the waterproof version of the Travel/f that can identify simple mixtures through automated subtraction software. The unit can operate in hostile environments and can be immersed in decontamination solution without harm to the internal mechanism. 

First, the phase transitions of liquid crystals in microcavities of submicrometer size are strongly affected by finite size effects. The nematic-to-isotropic phase transition, for instance, has been shown to become continuous [105, 106, 111]. This phenomenon can be explained by Landau-type models [105-107, 111, 114, 115]. The same effect of a continuous nematic-to-isotropic transition was also observed in bulk liquid single crystal elastomers [116, 117] (see Chap. V of Vol. 3 of this Handbook), whereas the corresponding linear polymer shows a discontinuity of the order parameter at the phase transition. For the elastomers, both a confinement due to the crosslinking and an internal mechanical field, resulting from a second crosslinking performed under mechanical stress, may explain the continuous character of the nematic-to-isotropic transition. 

The structure of the solid determines the mechanism for which internal liquid flow may occur. These mechanisms can include (1) diffusion in continuous, homogeneous solids, (2) capillary flow in granular and porous sohds, (3) flow caused by shrinkage and pressure gradients, (4) flow caused by gravity, and (5) flow caused by a vaporization-condensation sequence. 

Dremin, A.N., Klimenko, V.Yu. and Kosireva, I.Yu., On the Mechanism of the Reaction Hot Spots Origin at Liquid Explosives Detonation, in Eighth Symposium (International) on Detonation, NSWC MP 86-194 (edited by Short, J.M.), Naval Surface Weapons Center, White Oak, Silver Spring, MD, 1986, pp. 678-687. 

The Nash vacuum pump or compressor has only one moving part—a balanced rotor that runs without any internal lubrication. Such simplicity is possible because all functions of mechanical pistons or vanes are performed by a rotating band of liquid compressant. 

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