نتایج جستجو برای: 1995
تعداد نتایج: 74965 فیلتر نتایج به سال:
This article introduces the theory behind digital order tracking, which is implemented by oversampling, interpolation and resampling techniques in Brüel&Kjær instrumentation. As application examples order tacking is applied to the vibration signal from a coast down of a turbogenerator from a power plant station, a run-up of a large marine diesel engine, gated measurement on an automobile engine...
This paper contributes to the model theory of modal logic using bisimulations as the fundamental tool A uniform presentation is given of modal analogues of well known de nability and preservation results from rst order logic These results include algebraic characterizations of modal equivalence and of the modally de nable classes of models the preservation results concern preservation of modal ...
We thank the following scientists for reviewing articles submitted to Cell in Cambridge and in London during 1995.
Hologram measurements are becoming more and more popular as a reliable method for identifying bad elements and the tuning of active phased array antennas. Relying on holographic data to adjust phase shifters and attenuators in these antennas can give undesired results if the accuracy of the data is poor. Often measurements can be improved if the error sources can be isolated and quantified. Thi...
The coalgebraic perspective on objects and classes in object-oriented programming is elaborated: objects consist of a (unique) identiier, a local state, and a collection of methods described as a coalgebra; classes are coalgebraic (behavioural) speciications of objects. The creation of a \new" object of a class is described in terms of the terminal coalgebra satisfying the speciication. We pres...
This study investigated the psychosocial functioning of both parents and siblings of children with Rett syndrome. Parents provided data on standardized (Parenting Stress Index [PSI], Dyadic Adjustment Scale [DAS] and Family Environment Scale [FES]) and unstandardized (Social Environment Impact Scale and Symptom Impact Scale) questionnaires regarding family stress and functioning. Siblings also ...
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