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Controllers of continuous systems are usually discrete, because of the sampling required by computer implementations. The controlled physical systems are often nonlinear. It is therefore important that tools and languages for control system design provide adequate support for dealing with these phenomena. The χ language, presented in this paper, provides(More)
Samarium-153-EDTMP is an effective agent for palliation of widespread skeletal metastases because it concentrates in bone metastases which have an osteoblastic component. Similar concentration in areas of osteoblastic activity in ankylosing spondylitis, Paget's disease and rheumatoid arthritis suggests a possible new treatment approach. Three patients with(More)
The diffusing capacity of carbon monoxide (D(L,CO)) and its value normalized to alveolar volume (D(L,CO)/V(A)) are usually estimated with the single breath method at total lung capacity (TLC). Severely ill patients and small children are not able to deliver a satisfactory vital capacity (VC) or hold their breath for 10 s at TLC. The aim of this study was to(More)
Most bridges in the highways of the Netherlands are designed to last 80 years. In those 80 years only minor damage should be repaired. To determine the repair strategy of these minor damages the so-called Lifetime Extending Maintenance model can be used. This model is a condition model, which has been used for many materials like paint on steel [1]. In this(More)
The Netherlands Ministry of Transport, Public Works and Water Management (Rijkswaterstaat) is responsible for the construction, operation and maintenance of a large number of infrastructures. The inventory mainly consists of bridges, tunnels, storm-surge barriers, sluices and highway-signal systems. Rijkswaterstaat spends € 40 to € 50 Million per year on(More)
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