Converses amb Anna Camps

Converses for Write-unidirectional Memories

1

Amb Breaks Well-Pointedness, Ground Amb Doesn't

McCarthy’s amb operator has no known denotational semantics, and its basic operational properties the context lemma, the compatibility of refinement similarity and convex bisimilarity have long been open. In this paper, we give a single example program that demonstrates the failure of each of these properties. This shows that there cannot be any well-pointed denotational semantics. However, we ...

Active Magnetic Bearings (amb)

A magnetic bearing is a bearing which supports a load using magnetic levitation. Magnetic bearings support moving machinery without physical contact, for example, they can levitate a rotating shaft and permit relative motion without friction or wear. In active magnetic bearings (AMB) a stable equilibrium is achieved by means of one or more control loops. The use of control loop for maintaining ...

Summer Camps

thousand. Four years later there were about two hundred camps in existence, and five thousand boys were in the field. The number has increased steadily and rapidly in the last five years. Five years ago about ten thousand boys received the benefit of outdoor life during the summer months. During the past season, 1907, there were between four and five hundred summer camps, and about twenty-five ...

Q Camps