This chapter studies how and to what extent it is possible to design for well-being. Well-being is rarely considered in the design literature, and is rarely linked to technology and design in philosophy and the social sciences. A few approaches to design for well-being have recently materialized, however, including Emotional Design, capability approaches, positive psychology approaches, and Lif...

Context-aware systems that make use of sensor information to reason about their context have been proposed in many domains. However, it is still hard to design effective context-aware applications, due to the absence of suitable domain theories that consider dynamic context and associated user requirements as a precursor of system development. In this paper, we discuss a theory for the well-bei...

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including s...

Conventional interference tests conducted in geothermal reservoirs are used to assess bulk transmissivities and storativities as well as the productivity and size of a geothermal reservoir. Hydrological heterogeneities such as no-flow and pressure support boundaries can also be identified using such tests. In a typical interference test a pressure disturbance is created in one well and the pres...

We argue that existing OS designs are ill-suited for the needs of Internet service applications. These applications demand massive concurrency (supporting a large number of requests per second) and must be well-conditioned to load (avoiding degradation of performance and predictability when demand exceeds capacity). The transparency and virtualization provided by existing operating systems lead...

For a well in the vicinity of a surface water body, a formula is developed that relates the share of bank filtrate on total pumpage, that is, the discharge ratio, on one side, to basic well and aquifer characteristics on the other. The application of the formula is demonstrated for solving the inverse problem: for an aimed discharge ratio, well characteristics (pumping rate, distance to shore) ...

Two years ago, we analyzed the architecture of Sagitta 2000/SD, a large business information system being developed on behalf of Dutch Customs. We were in particular interested in assessing the capabilities of the system to accommodate future complex changes. We asked stakeholders to bring forward possible changes to the system, and next investigated how these changes would affect the software ...

BACKGROUND Depression is often a chronic relapsing condition, with relapse rates of 50-80% in those who have been depressed before. This is particularly problematic for those who become suicidal when depressed since habitual recurrence of suicidal thoughts increases likelihood of further acute suicidal episodes. Therefore the question how to prevent relapse is of particular urgency in this grou...

A critical phase of oil well completion involves positioning cement between the outer surface of a metal casing and the sides of the well. This task is done by injecting a specially formulated cement slurry down the center of the casing and up the sides of the bore hole. Designing these slurry systems is time consuming and expensive because of the variability of the conditions between wells and...