Simulation of Well Wall Stress Distribution Model and Well Stability

Simulation of Well Wall Stress Distribut

In 1898s, Kirsch established the 2-D stress distribution formu Jaeger and Cook made a thorough derivation of Kirsch’s formula classic model to predict stress distribution based on elastic mecha formation, which makes it suitable for completely homogeneo permeability effect, Burshtein, Fairhurst and Adler et al. derived b further investigated the stress distribution in bilinear elastic rocks a f...

Well, well, well water.

Although the multiplication of bacteriophages (phages) has a substantial impact on the biosphere, comparatively little is known about how the external environment affects phage production. Here we report that sub-lethal concentrations of certain antibiotics can substantially stimulate the host bacterial cell’s production of some virulent phage. For example, a low dosage of cefotaxime, a cephalo...

Global Stability in a Well Known Delayed Chemostat Model

In this paper, we consider the global stability problem for the well known delayed chemostat model introduced and studied by Freedman, So and Waltman(1989). The difficulty of studying this open problem is that this delayed system has no negative feedback in the microbial populations. By a novel way of constructing a proper Liapunov functional and explicit estimates of eventual upper and lower b...

Affluence, Feelings of Stress, and Well-being

Data from the Gallup World Poll highlighted the differential relations between perceived stress, well-being, and wealth at the individualversus nation-level. At the nation level, stress was a distinct concept from negative affect (NA). It correlated positively with well-being (positive affect, life satisfaction, and domain satisfaction) and wealth (as measured by income, gross domestic product,...

q-ADDITIVE FUNCTIONS AND WELL DISTRIBUTION