Deformation early-warning index for heightened gravity dam during impoundment period

An early warning on early warning systems!

Over-indebtedness and Microfinance Constructing an Early Warning Index

This study examines a method to collect and explore data on the conditions that could lead to crises due to microfinance clients’ over-indebtedness. A simplified version of one of the main approaches to early warning systems, the “signaling approach”, is proposed to construct a composite index for predicting over-indebtedness crises in the microfinance industry. The index is built for a sample ...

Non-linear Analysis of Stress and Strain of Concrete-faced Rockfill Dam for Sequential Impoundment Process

The rockfill is modeled as nonlinear elastic material, whose stress-dependent tangent modulus is related to the confining pressure. The parameters of constitutive relationship of stress and strain are determined by tri-dimensional compression test in laboratory. The model applied in this study adopts the technique of element birth and death to simulate the sequential impoundment process of conc...

Gravity Induced C-Deformation

We study F-terms describing coupling of the supergravity to N = 1 supersymmetric gauge theories which admit large N expansions. We show that these F-terms are given by summing over genus one non-planar diagrams of the large N expansion of the associated matrix model (or more generally bosonic gauge theory). The key ingredient in this derivation is the observation that the chiral ring of the glu...

Design of Gravity Dam by Genetic Algorithms

The design of a gravity dam is performed through an interactive process involving a preliminary layout of the structure followed by a stability and stress analysis. This study presents a method to define the optimal top width of gravity dam with genetic algorithm. To solve the optimization task (minimize the cost of the dam), an optimization routine based on genetic algorithms (GAs) was impleme...