In this paper we will describe the pattern Undertaker aimed at handling dangling references to objects which not are recognized as garbage by the environments ordinary reclamation facilities. The context of the work is an environment which comprises a garbage collector, as Smalltalk or Java, but we believe that this pattern more generally could be applicable to environments without such service...

A community group, in conjunction with local government and industry, has been working on aquatic and terrestrial restoration at a Wollongong saltmarsh, previously diminished in size and degraded by harbour reclamation and an urban rubbish tip. Students evaluate restoration progress to date and devise some interesting potential directions.

Virtual Multicast (VMC) exploits short-term similarities in Internet traffic to save bandwidth and reduce congestion. Its implementation requires modification of aspects the HTTP specification, which is motivated by the expected benefits of the method: reclamation of bandwidth lost due to redundant network data and latency savings as seen by users.

The aim of the chapter is to introduce a new technology using the flow-divided electrodes for sewage reclamation based on redox and concentrating ions. This creative system can be used directly for sewage treatment without the need for costly ion-exchange membranes and other chemical reagents. Under experimental condi‐ tions, the removal percentage of TDS (total dissolved salts) is 83 %and the ...

A 162-day pilot-scale operation for reclamation of urban wastewater was studied by using an ultrafiltration membrane bioreactor (UMBR). Performance of the UMBR was investigated with a sludge retention time (SRT) of 5, 15, and 30 days, a hydraulic retention time (HRT) of 5 h, and membrane flux between 75 and 150 l m−2 h−1, respectively. It was observed that the highest sludge concentration in th...

The state-of-the-art models and schedulability analysis for mixed-criticality multicore systems overlook lowlevelaspects of the system. To improve their credibility, we therefore incorprate, in this work, the effects of delays from memory contention on a shared bus. Specifically, to that end, we adopt the predictable memory reservation mechanism proposed by the Single Core Equivalence framework...