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granice: Control city
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3 zapisanych źródełEvidence: 100 • authority: 72
A control city is a city, locality, or other location posted on a series of traffic signs along a particular stretch of road indicating destinations on that route. Together with route numbers and cardinal directions, these focal points aid the motorist navigating along a highway system. Such cities appear on signs at junctions to indicate where the intersecting road goes and where the road ahead goes. They are also typically used on distance signs. Different countries have different practices as far as focal points on directional signs are concerned, and the term control city is not used globally. Where a sign contains a number of destinations for a particular direction, not all of those de…
Otwórz źródło ↗Evidence: 47 • authority: 88
Sign-elevation angle rigidity and its application to bearing-only formation control in agents' local frames. In this paper, we propose sign-elevation angle rigidity and design bearing-only control laws in agents' local coordinate frames without any orientation synchronization or estimation algorithms. Moreover, we also establish almost global stability results for formation control, with elevation angle measurements that can be obtained using bearing-only sensors in the agents' local frames. Elevation angle rigidity-based control laws can only guarantee local stability results, and existing results do not address flip, flex, and reflection ambiguities that can arise in elevation angle rigid…
Otwórz źródło ↗Evidence: 39 • authority: 88
BOUNDING THE NUMBER OF COLUMNS WHICH APPEAR ONLY IN POSITIVE POOLS. $d$-separable, $\overline{d}$-separable and $d$-disjunct matrices are the major tools in constructing pooling designs which has many applications to DNA experiments, for example, the clone library screening problem. While there exists a simple decoding for $d$-disjunct matrices, only brute-force methods are known for the other two. In this paper we identify structures in these two matrices which lead to significant improvements for decoding.
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