Toward nanofluids of ultra-high thermal conductivity

The assessment of proposed origins for thermal conductivity enhancement in nanofluids signifies the importance of particle morphology and coupled transport in determining nanofluid heat conduction and thermal conductivity. The success of developing nanofluids of superior conductivity depends thus very much on our understanding and manipulation of the morphology and the coupled transport. Nanofluids with conductivity of upper Hashin-Shtrikman (H-S) bound can be obtained by manipulating particles into an interconnected configuration that disperses the base fluid and thus significantly enhancing the particle-fluid interfacial energy transport. Nanofluids with conductivity higher than the upper H-S bound could also be developed by manipulating the coupled transport among various transport processes, and thus the nature of heat conduction in nanofluids. While the direct contributions of ordered liquid layer and particle Brownian motion to the nanofluid conductivity are negligible, their indirect effects can be significant via their influence on the particle morphology and/or the coupled transport

[Partial nodular transformation of the liver. Apropos of a case].

Partial nodular transformation is a rare disorder of the liver, that is becoming a very interesting speculative problem, in relation to the nodular regenerative hyperplasia of the liver and cirrhosis. This disease is a cause of non cirrhotic protal hypertension. Clinical and pathological aspects are discussed a propos of a case

[Humoral and histological correlations in chronic aggressive hepatitis without necrotic bridges].

By excluding the CALD complicated by B.H.N. we have been left with a range of C.A.H. patterns hardly distinguishable from C.P.H. on one side and from Cirrhosis on the other. We have tried to subdivide this range into three subgroups according to the extension of necrosis, fibrosis, inflammation, regeneration. Furthermore, we compared the biochemical parameters of activity of these subgroups in which we subdivided C.A.H. without B.H.N. to each other and with those of C.P.H. and C.L.H. Results shaw no statistical significative difference in the compared groups. Thus, we conclude for a priority of the histological patterns on biochemical parameters in the management of this disease