The upgrading of biogas for the production of biomethane to be injected to the natural gas grid has gained significant importance in recent years. It is often considered to be superior to the production of electricity and district heat with internal combustion engines mainly because of better energy utilisation, higher flexibility and beneficial economic prospects. Biogas upgrading is commonly ...

This paper demonstrates the enhancement in ;maintainability made possible by introducing metal-level control architectures to production systems. We msess t h e amount of eflort expended in upgrading a rule base through the range referred to b y maintenance staff f o r d e base upgrading. The rule base of an Intelligent C A I System currently in operation that employs the raeta-level control ar...

The work presented here provides a cost model to help mission designers and program managers both plan for and manage Electronic, Electrical and Electromechanical (EEE) parts program costs. The data shown below illuminates the “cost of ownership” for EEE parts used in space flight programs and highlights where costs saving strategies are best targeted. The use of post-procurement processing to ...

This paper examines the patterns of subsidiary autonomy at the organizational periphery: at multinational companies’ (MNCs) manufacturing subsidiaries in Hungary. It investigates the impact of upgrading on subsidiary autonomy. Our case study-based investigation (27 in-depth interviews at 14 manufacturing subsidiaries) integrates three previously isolated lines of research: 1) subsidiary upgradi...

Objective. The aim of this study is to develop a prognostic model capable of predicting the probability of significant upgrading among Japanese patients. Methods. The study cohort comprised 508 men treated with RP, with available prostate-specific antigen levels, biopsy, and RP Gleason sum values. Clinical and pathological data from 258 patients were obtained from another Japanese institution f...

We study bottleneck constrained network upgrading problems. We are given an edge weighted graph G = (V; E) where node v 2 V can be upgraded at a cost of c(v). This upgrade reduces the delay of each link emanating from v. The goal is to nd a minimum cost set of nodes to be upgraded so that the resulting network has a good performance. The performance is measured by the bottleneck weight of a con...

The continued growth of informal settlements constitutes one of the greatest urban development problems affecting African cities. Projects intended to upgrade these settlements have not been highly successful. In Kenya, project beneficiaries receiving land under individual titles sell or lose their land rights. This transfer of property is seen as stimulating informal settlement construction an...

Redundant Arrays of Independent Components (RAIC) is a technology that uses groups of similar or identical distributed components to provide dependable services [1,2,3]. RAIC allows components in the redundant array to be added or removed dynamically during run-time. A special case of RAIC can be used to perform dependable on-line upgrading of distributed systems. This position paper gives a br...

Green technologies for the environmental upgrading of infrastructures Abstract: Over the last few decades, the globalization phenomenon has determined the exponential development – from an economic, cultural and political standpoint – of traffic flows, the number of means and infrastructures involved in communication and exchange. At the same time, these represent one of the most complicated en...