Cleaner technology is central to sustainable development. It has the potential, at least in some industries, to reduce environmental impacts whilst enabling economic growth. Indeed, cleaner technology can be seen as resource efficiency, enabling firms to become both cleaner and more competitive at the same time. In contrast, conventional ('end-of-pipe') treatment imposes costs on society which ...

In this paper we report our study on the user experience of robot vacuum cleaner behaviour. How do people want to experience this new type of cleaning appliance? Interviews were conducted to elicit a desired robot vacuum cleaner personality. With this knowledge in mind, behaviour was designed for a future robot vacuum cleaner. A video prototype was used to evaluate how people experienced the be...

What are the mechanisms that prevent partners from cheating in potentially cooperative interactions between unrelated individuals? The cleaner fish Labroides dimidiatus and client reef fish both benefit from an interaction as long as the cleaner eats ectoparasites. However, the cleaner fish prefers some client mucus, which constitutes cheating. Field observations suggested that clients control ...

Signals transmit information to receivers about sender attributes, increase the fitness of both parties, and are selected for in cooperative interactions between species to reduce conflict [1, 2]. Marine cleaning interactions are known for stereotyped behaviors [3-6] that likely serve as signals. For example, "dancing" and "tactile dancing" in cleaner fish may serve to advertise cleaning servic...

In this paper we report our study on the user experience of robot vacuum cleaner behavior. How do people want to experience this new type of cleaning appliance? Interviews were conducted to elicit a desired robot vacuum cleaner personality. With this knowledge in mind, behavior was designed for a future robot vacuum cleaner. A video prototype was used to evaluate how people experienced the beha...

We study the operation of the segment cleaner in a log structured le system. When the segment cleaner is active, response time for user read requests is adversely aaected. Thus, it is desirable to run the segment cleaner when the read traac is low. We propose a simple strategy for scheduling the segment cleaner that seems to perform an order of magnitude better than a random baseline policy. We...

This paper details the design and implementation of a le system cleaner for a log-structured le system for Linux. This user-level cleaner reclaims disk space which is occupied by blocks no longer referenced by any le in the le system. The current functionality of our cleaner is very limited, but some initial data suggests that performance scales linearly with the amount of data to be cleaned.

this paper investigates householders’ attitudes to the recycling of solid wastes in one part of northern malaysia, namely alor setar town, kedah state. a postal questionnaire survey was administered to households in alor setar town in selected areas of high, middle and low incomes. 389 responses were obtained, a response rate of 86.4%. a personal interview with an official of the municipal co...