Infiltration Instability

Spiegelman M, (1996) Geochemical conseqnences of melt transport in 2-D the sensitivity of trace elements to mantle dynamics. Earth Planet Sci Lett 139 115-132 Spiegelman M, Kelemen PB, Aharonov E (2001) Canses and consequences of flow organization dnring melt transport The reaction infiltration instability in compactible media. J Geophys Res 106 2061-2077... 

Spiegelman M., Kelemen P. B., and Aharonov E. (2001) Causes and consequences of flow organization dtuing melt transport the reaction infiltration instability in compactible media. J. Geophys. Res. Solid Earth 106, 2061-2077. 

What are the reasons for clock instability High-frequency noise is always generated at turn-on and turnoff in any switcher. This noise can infiltrate into the IC via various pins. It can be very hard to filter out and control. You may need to ultimately simply avoid turning the Fet OFF too dramatically. In most switchers, the turn-on transition is traditionally delayed (or slowed) just a little, so as to allow the output/catch diodes to recover... 

At autopsy, a ruptured plaque features a thin fibrous cap overlying cell-rich regions with a lipid-rich necrotic core (<3 mm ) containing cell debris. The indicators for plaque instability include an inflammatory infiltrate with lipid-rich macrophages (foam-cells) and a decreased collagen and smooth muscle cell (SMC) content in the fibrous caps as well as at the shoulders of the atheroma, respectively. Therefore, one of the challenges of modern medicine is the design of... 

Alkaline and Neutbal Solutions. The instability of sulfur-infiltrated concrete in sulfatic soils has been long known (16), but the reason for deterioration is still poorly understood. Degradation of untreated Portland cement concrete in such environments often appears related to... 

The inherent instability of sulfur-infiltrated concrete in aqueous media illustrated in this study may be the most important factor in utilization, because it will affect long-term durability of the concrete in many natural settings. The Ca(OH)2 produced by the hydration of portland cement is a principal reactant in the leaching process, and while it remains sulfur could be extracted, leaving the matrix vulnerable to other destructive processes. The removal rate of sulfur will vary greatly, depending mostly upon the pH of the immersion medium thus, the concrete deteriorates in alkaline sulfatic soils but is relatively stable in the corrosive neutral sulfatic solutions from the sodium sulfate plant. 

Besides preferential flow through macropores, preferential flow may as well occur through certain parts of the soil matrix. Fingered flow e.g. will be caused by wetting front instability (de Rooij, G.H. (2000)) by air entrapment in the matrix (Peck, A.J. (1964)), by water repellency of the solid phase (Ritsema, C.J. and Dekker, L.W. (1994)), or by the increase of the soil hydraulic conductivity with depth (Raats, P.A.C. (1973)). An exemple of fingered flow as observed during infiltration in a sandy soil is given in the Fig. 8. 

Cardiovascular Cardiac arrest has been reported after nasal infiltration with lidocaine and adrenaline in a patient with a hypophysoma and a previously undiagnosed hypertrophic cardiomyopathy [26 ]. This emphasizes that absorbed adjuncts, such as adrenaline, can be hazardous and should be considered in the differential diagnosis if hemodynamic instability occurs after infiltration of a local anesthetic with adrenaline. 

In this study, TRIGRS was used to evaluate the effects of transient rainfall infiltration on the timing and locations of landslides. After a 5-hour simulation, Pp > 60% which indicates the slope instability was used to analyse the susceptibility of the loess slope under three different rainfall intensity. 

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