This paper presents a proposal for increased emphasis on operability in the Chemical Engineering capstone design courses. Operability becomes a natural aspect of the process design course for a project that is properly defined with various scenarios and uncertainty. Key topics in operability are the operating window, flexibility, reliability, safety, efficiency, operation during transitions, dy...

This paper presents a proposal for increased emphasis on operability in the Chemical Engineering capstone design courses. Operability becomes a natural aspect of the process design course for a project that is properly defined with various scenarios and uncertainty. Key topics in operability are the operating window, flexibility, reliability, safety, efficiency, operation during transitions, dy...

This paper summarises the experience gained from application of Hazard and Operability Studies (HAZOP) and related techniques to four computer-based systems. Emphasis is placed on working practices and the integration of HAZOP-style analysis into a safety-oriented lifecycle. Two of the case studies are described in some detail. An industrial study is used to investigate working practices, highl...

This paper describes a large scale experiment aimed to detect the reliability of users when converting their written opinions on product into a numerical score (e.g. number of stars). The study shows that, due to a number of factors, such a judgment is highly unreliable and, confronted with a uniform gold standard, provides accuracy inferior to a state of art system for opinion detection (namel...

Submit Manuscript | http://medcraveonline.com Abbreviations: MIC: Methyl Isocyanate; UCIL: Union Carbide India Ltd; RDX: Research Development Explosive; HAZOP: Hazard Operability Studies; PHA: Preliminary Hazard Analysis; IHA: Interface Hazard Analysis; O&SHA: Operating and Support Hazard Analysis; QRA: Quantitative Risk Analysis; RA: Risk Analysis; MORT: Management Oversight Risk Tree Analysis...

This paper describes a technique for software safety analysis which has been developed with the specific aim of feeding into and guiding design development. The method draws on techniques from the chemical industries’ Hazard and Operability (HAZOP) analysis, combining this withwork on software failure classification to provide a structured approach to identifying the hazardous failure modes of ...

I want first to thank Mr. Fraser and other responsible individuals for the honour conferred upon me by inviting me to give the Sir Thomas and Lady Dixon lecture. I consider this a great honour-and doubly so since I have been invited to give the first of the series. Since coming to Belfast I have had the opportunity and privilege of learning a great deal about Sir Thomas Dixon. It is difficult t...

In this research, a Dependency Network Analysis technique has been adapted to assess operability, reliability, and resilience in both operational and development networks, associated with System of System architectures. The architecture is modeled as a directed network where nodes represent either the component systems or the capabilities to be acquired. Links on the network represent various k...