DNAPL source zone characterization is important for risk assessments, feasibility studies, and identification of appropriate remediation technologies. If sufficient DNAPL is released into the subsurface, it can penetrate the water table because of its relative density to water. When the DNAPL is also less viscous than water, an inherently unstable DNAPL-water displacement occurs. Descriptions o...

in this paper we introduce the notions of g∗l-module and g∗l-module whichare two proper generalizations of δ-lifting modules. we give some characteriza tions and properties of these modules. we show that a g∗l-module decomposesinto a semisimple submodule m1 and a submodule m2 of m such that every non-zero submodule of m2 contains a non-zero δ-cosingular submodule.

The characterization of a layered structure has been considered by many investigators. A variety of techniques has been introduced. Among these normal incidence longitudinal waves can be applied in the low frequency regime, and the transrnitted and/or reflected signals can be used for the evaluation of a layered medium [1, 2]. In the technique discussed in Ref. [1], a reference signal has tobe ...

-) carbon. A cavitating water jet method was used to examine weight loss versus time as compared to other engineering materials. An ultrasonic horn method was used to describe cavitation erosion morphology of pyrolytic carbon surfaces. The cavitation behavior of pyrolytic carbon by both methods. was highly variable. Cavitation resistance in the water jet model was initially high, but weight los...

We study the dynamical properties of the Brownian diffusions having σ Id as diffusion coefficient matrix and b = ∇U as drift vector. We characterize this class through the equality D + = D 2 −, where D+ (resp. D−) denotes the forward (resp. backward) stochastic derivative of Nelson’s type. Our proof is based on a remarkable identity for D + − D − and on the use of the martingale problem.

In this paper we introduce the notions of G∗L-module and G∗L-module whichare two proper generalizations of δ-lifting modules. We give some characteriza tions and properties of these modules. We show that a G∗L-module decomposesinto a semisimple submodule M1 and a submodule M2 of M such that every non-zero submodule of M2 contains a non-zero δ-cosingular submodule.

A neuroblastic-like cell line (NUB-20) was derived from a case of histopathologically diagnosed metastatic neuroblastoma. The metastatic tumor and nude mouse heterotransplant resembled neuroblastoma by histolÃ3gica!criteria, in contrast to the primary tumor, which was differ entially classified as Ewing's sarcoma. However, the cell line demon strated a unique phenotype in culture with respect t...

After a critical examination of several attempts to characterize the Analytic tradition in philosophy, in the book here discussed Hanjo Glock goes on to contend thatAnalytic Philosophy is “a tradition that is held together both by ties of influence and by a family of partially overlapping features”. Here I question the need to appeal to a“family resemblance” component, arguing inste...