Wheel out-of-roundness (OOR) inevitably jeopardizes the safety of railway operations. Regular visual inspection and checking by experienced workers are the commonly adopted practices to identify wheel defects. However, the defects may not be spotted in time. The paper puts forward a new method to real-time monitor wheel OOR based on PVDF strain sensor. Track strain response upon wheel-rail inte...

As a kind of wheeled mobile robot used in intelligent logistics system, AGV is mainly used for automatic material transportation, the precise positioning and path tracking is the assurance of accurate material transportation. In this article, the laser coordinate positioning technology is used to realize accurate positioning for AGV, a new method of target reference point selection is put forwa...

Wheels of planetary rovers typically have grousers on their surface to provide grip for climbing in loose soil and scrambling over rough terrain. In this study, the influence of grousers on the traveling performances of wheeled rovers is evaluated in various soils. First, the influence of the number of grousers was quantitatively determined by conducting experiments using wheels with different ...

We study biplane graphs drawn on a finite point set S in the plane in general position. This is the family of geometric graphs whose vertex set is S and which can be decomposed into two plane graphs. We show that every sufficiently large point set admits a 5-connected biplane graph and that there are arbitrarily large point sets that do not admit any 6connected biplane graph. Furthermore, we sh...

rotary atomizers are commonly used in spray dryers to atomize feed. one destructive effect of wheel rotation is the creation of a vacuum inside the wheel that conducts hot air from the chamber into the wheel and can lead to atomizer blockage and an explosion. the present work determined the air-pumping characteristics of a rotary atomizer with a 50 mm wheel diameter. the vacuum pressure and pow...

The classical theory of analogical reasoning focuses on mappings between discrete symbols as the mechanism of analogy evaluation and transfer. This paper introduces several other analogy evaluation strategies discovered in expert reasoning protocols: bridging analogies, conserving transformations, dual simulations used to detect perceptual-motor similarity, and overlay simulations. These findin...

A new type of holonomic omnidirectionul vehicle which consists of wheel mechanisms without free rollers but with conventional tires is presented. We first present a concept of the new driving wheel mechanism with a tire in the conventional style such QS a rubber tire or a pneumatic tire,"Offset Steered Driving Wheel". The configuration of the wheel has an offset distance between a wheel axle an...

This paper explores the possibility of injecting mobility into wireless network infrastructure. We envision WiFi access points on wheels that move to optimize user performance. Movements need not be all around the floor, neither do they have to operate on batteries. As a first step, WiFi APs at home could remain tethered to power and Ethernet outlets while moving in small areas (perhaps under t...

Appendix A Figures This appendix contains some figures associated with the gear wheels example (Example 4.13). The first figure contains a circuit representation of the parametrised well-founded model of logic program P w from Example 4.13. turns1(0) turns2(0) turns1(1) turns2(1) Th(Aw) button1(0) button2(0) f f f f f f ∨ ∧ ∧ ¬ ¬ ∨ ∧ ∧ ¬ ¬ f f ∨ ∨ turns1(0) ⇔ turns2(0) ⇔ turns1(1) ⇔ turns2(1) ⇔...