stability and safety analysis of dams is a subject which has been studied in recent years by several researchers. researchers have used various methods and models for studying the stability of the dam. several methods are proposed for the analysis of earth dams under earthquakes. some of these methods are viscoelastic methods and semi static methods. each of these methods can be used as an appr...

The key of effective development for the fractured reservoir is to describe the distribution of the fracture and build the fracture geological model. To acquire more optimal exploration and development of the oilfield, objective geologic model of reservoir fractures is needed for further knowledge of the spatial distribution condition of fractures. Adopting well-logging and seismic techniques c...

A machine of storage, a machine to compute, a machine to envisage, a magical machine of job parallelization all these describing expressions are not enough to picturise the inevitability of a valuable machine – The Computer. The feature of save and retrieve contributed much to the expert working of the system. The volatile and non-volatile levels of storage have been years long-standing foundat...

In this paper, the influence of soil-structure interaction (SSI) on a torsionally coupled turbo-generator (TG) machine foundation is studied under earthquake ground motions. The beneficial effects base isolators in TG motions are also duly, considering SSI. A typical analyzed using three-dimensional finite element (FE) model. Two superstructure eccentricity ratios considered to represent torsio...

In the 1960’s Gisbert Hasenjaeger built Turing Machines from electromechanical relays and uniselectors. Recently, Glaschick reverse engineered the program of one of these machines and found that it is a universal Turing machine. In fact, its program uses only four states and two symbols, making it a very small universal Turing machine. (The machine has three tapes and a number of other features...

Salt marshes are globally important ecosystems, but many have been lost or transformed due to the impacts of global change. There attempts broadly quantify salt marsh communities, especially ubiquitous grasses which serve as foundation species such Spartina alterniflora and patens, latter is being sea-level rise. However, few researchers used high-resolution geospatial imagery fine-scale change...

In this study, dynamic bearing capacity of adjacent shallow strip foundations located on sandy soil was examined using a numerical finite difference modeling, FLAC. The behavioral interference of shallow strip foundations under different conditions was investigated. The effect of soil strength parameters, geometric characteristics of shallow foundations and cyclic loads at different distance ra...

selecting an appropriate manufacturing machine is a very important and complex problem for firms, which usually have to deal with both qualitative and quantitative criteria. taking into account the differences among machines in terms of cost, speed, quality and after sale services, type and number of machines are important parameters to consider. therefore, the goal of this paper is to propose ...

This paper presents the comparison of two different methods in the system identification. The experimental modal analysis and operational modal analysis are applied to a local structure of a storage/retrieval machine (S/R machine). The different vibration measurement approach and different theoretic analysis approach give us more information than only one approach. Through the result, the consi...