Carbon capture and storage is considered as an amelioration technique to address the increasing level of carbon dioxide in atmosphere. Depleted oil gas reservoirs are potential candidates for long sequestration captured dioxide. The huge number drilled wells these hydrocarbon around world, however, pose a threat integrity geological CO2 projects. These direct connections Earth’s surface even wh...

Active control of the production choke valve is the recommended solution to prevent casing-heading instability in gas-lifted oil wells. Focus of this work is to find a simple yet robust control structure for stabilization of the system. In order to find suitable control variables, a controllability analysis of the system with different candidate control variables and two alternative manipulated...

In this contribution we present numerical simulations of thermodynamic and hydrodynamic response of a proposed production target (see Fig. 1) for generation of antiprotons at the Facility for Antiprotons and Ion Research (FAIR), at Darmstadt. As seen in Fig. 1, it consists of a Ni cylinder which has a radius of 0.15 cm and a length of 10 cm and is enclosed in solid graphite casing which is foll...

This paper deals with new concept of compressed air energy storage system using atmospheric air at ambient temperature as a zero pollution power source for running motorbikes. The proposed motorbike is equipped with an air turbine in place of an internal combustion engine, and transforms the energy of the compressed air into shaft work. The mathematical modeling and performance evaluation of su...

In the petroleum industry, one of the most serious problems encountered during cementing is the failure at the bonding interface. Many measures including casing-sand adhesion have been developed to improve cementing bond strength. However, due to the lack of detailed study of the technique, many questions remain. The primary goal of this study is to investigate the influence of casing-sand adhe...

The aim of this study was to develop a systematic quality index for application in the cultivation of Agaricus bisporus (Lange) Imbach mushrooms, based on the physical, chemical and biological properties (indicators) of the compost and casing layers (factors). The relative importance (weight) of each of the factors and indicators, their normalized scores, the quality index values and the correl...

The mushroom (Agaricus bisporus) has a requirement for a "casing layer" that has specific physical, chemical and microbiological properties which stimulate and promote the initiation of primordia. Some of these primordia then may develop further into sporophores, involving differentiation of tissue. Wild and commercial strains of A. bisporus were cultured in axenic and nonaxenic microcosms, usi...