Digitalization shows that data and its exchange are indispensable for a versatile sustainable process industry. There must be shift from document-oriented to data-oriented Standards the harmonization of structures play an essential role in this change. In engineering, DEXPI (Data Exchange Process Industry) is already well-developed, machine-readable standard describing piping instrumentation di...

Given a connected graph on whose edges we can build roads to connect the nodes, number of agents hold possibly different perspectives which should be selected by assigning edge weights. Our task is minimum so that every agent has spanning tree in built subgraph weight same as original graph. We first show this problem NP-hard and does not admit better than ((1-o(1)) ln k)-approximation polynomi...

FOR many years there have been several excellent reference books on Thoracic Medicine, such as Crofton and Douglas and Frazer and Par6. Until very recently there have been very few good concise textbooks available. The early chapters, not surprisingly, deal with pulmonary physiology. This very complex subject has been treated in a simple and readable manner. So many authors manage to make this ...