Mining coal, oil and other energy will form much slope engineering, such as open-pit mine depot slope. The groundwater seepage seriously affects the stability of these engineering projects. Drainage pipes are commonly used in projects to reduce risk moisture decreasing soil stability. Such prone blockage by accumulation after a period operation, resulting decreased drainage or complete failure....

Large number of ferrous steel wire ropes is in use in different industries, carrying people and freight, supporting bridges and towers, lifting pipes and vessels offshore and onshore, underground and aboveground. The bigger and the longer is the rope, the more expensive it is. Later or sooner ropes deteriorate for different reasons, their further use may be dangerous, and important question ari...

The goal of modular robots is to achieve versatility in the field, while satisfying any number of traditional robot tasks. We chose the task of traversing terrain by climbing, and present various methods of climbing with modular robots. In particular, we focus on the tasks of climbing across a horizontal rope, climbing up a vertical rope, and climbing up stairs using the Superbot modular robot....

• E The rope is tied around a cylindrical pole by dual 6 D.O.F direct drive manipulators. • E The manipulators confirm that the rope is grasped by both hands using the force sensor. • E A flexible object model and a CCD camera vision system are used to recognize the shape of the rope.

A regular rope quality inspection is compulsory for wire ropes in security-relevant applications. Principal procedures of such quality checks are the visual inspection for surface defect detection, the magnetic inspection for a localization of broken wires and the measurement of the rope diameter. However, until today it is hardly possible for the human inspector to measure other important rope...

We report the direct detection by three THEMIS spacecraft of a magnetic flux rope flanked by two active X lines producing colliding plasma jets near the center of the flux rope. The observed density depletion and open magnetic field topology inside the flux rope reveal important three-dimensional effects. There was also evidence for nonthermal electron energization within the flux rope core whe...

Solar coronal mass ejections are the most energetic events in System. In their standard formation model, a magnetic flux rope builds up into ejection through reconnection that continually converts overlying, untwisted twisted enveloping pre-existing rope. However, only minority of carry coherent as core structure, which casts doubt on universality this orderly wrapping process. Here we provide ...

We identified 17 magnetic clouds (MCs) with durations longer than 30 h, surveying the solar wind data obtained by the WIND and ACE spacecraft during 10 years from 1995 through 2004. Then, the magnetic field structures of these 17 MCs were analyzed by the technique of the least-squares fitting to force-free flux rope models. The analysis was made with both the cylinder and torus models when poss...

Human intestinal helminths are described in this paper. They can be over a meter long, with an irregular cylindrical shape, resembling a rope. These anaerobic intestinal “rope” parasites differ significantly from other well-known intestinal parasites. Rope parasites can leave human body with enemas, and are often mistaken for intestinal lining, feces, or decayed remains of other parasites. Rope...