We examined interplanetary magnetic field disturbances recorded at the NEARShoemaker spacecraft when it was above either the east or west solar limb as seen from Earth, and then we identified the associated coronal mass ejections (CMEs) detected above the limbs by the SOHO/LASCO coronagraph. We found 10 cases where a nonrecurring IP disturbance could be associated with a CME. Eight of the distu...

The nonlinear vibration of a flexible hoisting rope with time-varying length and axial velocity is investigated. The flexible hoisting rope is modeled as a taut translating string with a rigid body attached at its low end. A systematic procedure for deriving the system model of a flexible hoisting rope with time-varying length and axial velocity is presented. The governing equations were develo...

Within the framework of the cubic honeycomb (cubic tessellation) of Euclidean 3-space, we define a quantum system whose states, called quantum knots, represent a closed knotted piece of rope, i.e., represent the particular spatial configuration of a knot tied in a rope in 3-space. This quantum system, called a quantum knot system, is physically implementable in the same sense as Shor’s quantum ...

We present a new approach for anomaly detection in the context of visual surface inspection. In contrast to existing, purely appearancebased approaches, we explicitly integrate information about the object geometry. The method is tested using the example of wire rope inspection as this is a very challenging problem. A perfectly regular 3d model of the rope is aligned with a sequence of 2d rope ...

Aboard a sailboat, when the wind changes unfavourably for our course, we can adjust the sails. We perform the operation of pulling a rope—but when the rope is fastened to the sail as a sheet, pulling the rope means adjusting the sail, while also paying attention to the wind, the sea current, the movements of the boat. The rope-with-sail is the very rope we are pulling: a sociomaterial entanglem...

Let us begin with definitions. Fix two points A and B in R. We shall always assume that A = (0, 0, 0) and B = (1, 0, 0) so, in particular, the line AB is the x-axis and the length of the interval [AB] is equal to 1. (We shall write [AB] for the closed interval between A and B, (AB) for the corresponding open interval, and AB for the line passing through A and B.) A rope is a non-singular C-smoo...

The LASCO and EIT instruments on the SOHO spacecraft have provided an unprecedented set of observations for studying the physics of coronal mass ejections (CMEs). They provide the ability to view the pre-event corona, the initiation of the CME and its evolution from the surface of the Sun through 30 R ⊙. An example of the capability of these instruments is provided in a description of a single ...