The application and physiological background of two industrial Saccharomyces cerevisiae strains, isolated from harsh industrial environments, were studied in Very High Gravity (VHG) bio-ethanol fermentations. VHG laboratory fermentations, mimicking industrially relevant conditions, were performed with PE-2 and CA1185 industrial strains and the CEN.PK113-7D laboratory strain. The industrial isol...

in this paper, we are going to improve the energy efficiency of an industrial c 3 mr base load lng plant by changing its refrigerant components and its mole fractions in liquefaction and subcooling cycles based on the cooling curves generated in the main liquefaction and subcooling heat exchangers. later on, selection features of the elements will be discussed. first, non-optimized c 3 mr plant...

The operating conditions for preparative chromatography, as for any industrial process, must be optimized. Such optimization is based on thorough understanding of process variables and economics. Optimization of the operating conditions is the best justification for detailed study of the fundamentals of nonlinear chromatography. It is difficult to optimize a separation without a clear understan...

Rapid industrialization and consumerism have aggravated the generation of industrial waste globally, consequently posing a serious problem related to their treatment, disposal, management. Industrial wastes or sludges are mainly characterised by undesirable levels heavy metals, toxic chemicals, other organic compounds. Deposition such in environmental matrices for prolonged periods may result c...

in this study, the optimum combination of major factors affecting the acceptability of whey-based ricotta cheese i.e. fat at three levels (0, 5, 10%), salt at three levels (0, 1, 2%), and starter culture at two levels (0, 3%) was determined in a complete randomized design method with a factorial experiment. ricotta cheese trials made by mixing whey and milk in a ratio of 5:1 were then organ...

There is an emerging trend in evaluating industrial activities using principles of industrial ecology because of the emphasis on sustainability initiatives by major process industries. Attention has also been targeted at developing planned industrial ecosystems (IEs) across the globe. We point out the current state-of-the art in this exciting discipline and subsequently identify the challenges ...

Developing circular economy is an important consideration for economic transformation. The resource-exhausted cities should pay more attention to circular economy development. The authors of this paper make a prompt attempt to develop an early warning system of circular economy through the fuzzy comprehensive evaluation. In the first instance, the model determines the target value of circular e...

In this paper, we examine the different measures of Fault Tolerance in a Distributed Simulated Annealing process. Optimization by Simulated Annealing on a distributed system is prone to various sources of failure. We analyse simulated annealing algorithm, its architecture in distributed platform and potential sources of failures. We examine the behaviour of tolerant distributed system for optim...

In this paper, we discuss the design of suites of equally valid optimization strategies for job scheduling using genetic algorithms. Our initial designs will be neutral in the sense that none of our choices lead to job schedules which when implemented would be described by qualities such as contented, antagonistic or demoralized. The data will provide training examples for meta level associativ...