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Fluid activities

Factors in controlling chemical compositions of gold in equilibrium with the ore fluids are temperature, pH, concentration of aqueous H2S and Cl in the ore fluids, concentration ratio of Au and Ag species in the ore fluids, activity coefficient of Au and Ag components in gold, and so on (Shikazono, 1981). In the Yamizo Mountains, as a result, Ag/Au ratios of gold are correlated with a kind of the host rocks and sulfur isotopic compositions of the deposits. This correlation could be used to interpret Ag/Au ratios of gold. [Pg.261]

Formaldehyde, released from certain antimicrobials in metalworking fluids, activates amines toward nitrosation by nitrite (21). This reaction enhances nitrosation in neutral and basic medium. Since metalworking fluids are typically of pH 9-11, formaldehyde released from... [Pg.161]

EtOH i pressor response W/ epi i effects W/ NSAIDs EMS Some formulations contain a preservative that can cause anaphylactic Rxns can cause lupus-like erythematosus (muscle pain, fever, rash) use other antihypertensives/diuretics w/ caution concurrent EtOH use T effects OD May cause profound hypotension, HA and tach give IV fluids activated charcoal may be effective... [Pg.184]

About 20 different proteins are included in the complement system Proteins C1-C9, factors B and D, and a series of regulatory proteins. All these proteins are made in the liver, and they circulate freely in the blood and extracellular fluid. Activation of the complement system involves a cascade of proteolytic reactions. In addition to forming membrane attack complexes, the proteolytic fragments released during the activation process promote dilation of blood vessels and the accumulation of phagocytes at the site of infection. [Pg.841]

The conventional faujasite catalysts were steamed at 1400 F in 2 atmospheres steam at varying times in order to achieve the same activity as measured by our standard Fluid Activity Index (FAI). Table I summarizes the steaming conditions employed. [Pg.51]

Flux calculations ( 4) show that boundary layer activities are approximately equal to bulk fluid activities for all species other than Ir thus k aH2C0 (o) is replaced by k2aH2C03(B) and k3aH20(o) becomes k3aH20(B). Because the forward rate dependence of reaction 4 is transport-controlled. [Pg.545]

Stolz A. J. (1987) Fluid activity in the lower emst and upper mantle mineralogical evidence bearing on the origin of amphibole and scapohte in ultramafic and mafic granuhte xenohths. Min. Mag. 51, 719-732. [Pg.1328]

In what sense does the method of abstraction lead to ideologies-that is to socially grounded ideas The answer is found in the theory of reification (2.2.6). Because of the fixation of the fluid activity of the individual into compartmentalized specialities, thinkers are separated from doers and, in the next step, thought is separated from the thinkers ... [Pg.478]

Many authors have suggested the dependence of the composition of igneous micas on factors such as bulk host-rock chemistry, oxygen fugacity, H2O fugacity, and (other) fluid activity (e g. Arima and Edgar 1981 Barton 1979 Edgar and Arima 1983 Speer... [Pg.37]

Nepenthes proteases seem to be the most powerful enzymes combining a more broadly distributed amino acid specificity, very high efficiency and no autoproteolysis. Overall, NepI combines most of the benefits of the Nepenthes fluid activity and of a recombinant enzyme. For this reason, NepI appears to be the most promising alternative to pepsin in HX-MS experiments. [Pg.104]

Mechanical classification related to the fluid activity the harrier classification... [Pg.171]

A thermoplastic powder has been adapted for 3D printing. The powder includes a blend of a thermoplastic particulate material, and an adhesive particulate material, with the adhesive particulate material being adapted to bond the thermoplastic particulate material when a fluid activates the adhesive particulate material. [Pg.304]

Solid-Phase Components. Dispersed sohds are vital ingredients in commercial antifoam formulations. Much of the cmrent theory on antifoaming mechanism ascribes the active defoaming action to this dispersed solid phase with the liquid phase primarily a carrier fluid, active only in the sense that it must be surface-active in order to carry the solid particles into the foam films and cause destabilization. For example, PDMS, despite its considerable effectiveness in nonaqueous systems, shows little foam-inhibiting activity in aqueous surfactant solutions. It is only when compounded with hydrophobic silica [7631-86-9] to give the so-called silicone antifoam compounds that highly effective aqueous defoamers result. The three main solid-phase component classes are hydrocarbons, silicones, and fluorocarbons. [Pg.591]

The chemical and volume control system must maintain the reactor coolant system fluid activity level within acceptable limits. [Pg.212]

Such changeovers follow a consistent trend and are associated with increased severity of ambient conditions, such as higher external temperature, fluid activity, or apphed stress. [Pg.39]

It is well known that also after scram decay heat in the range of 30 to 40 MW for a LWR with 1000-1300 MW(e) is produced within the reactor core. To avoid an evaporation of fluid active and redundant heat removal systems are mandatory usually diesel generators are installed, in addition, to maintain the heat removal capability also in case of the Loss-Of-Outside-Power (LOOP). [Pg.239]

Since the introduction of ion-selective electrodes with liquid ion-exchanger phases there are more possible microelectrode designs, as the fluid active phase can easily be placed in the tip of the capillary pipette electrodes usually employed in investigating biological cells. [Pg.175]


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