now a days, data mining and knowledge discovery methods are applied to a variety of enterprise and engineering disciplines to uncover interesting patterns from databases. The study of Sequential patterns is an important data mining problem due to its wide applications to real world time dependent databases. Sequential patterns are inter-event patterns ordered over a time-period associated with ...

This paper presents a geometric approach to multi-robots group formation with connectivity preservation (from a graph-theoretic perspective) among group members. The controller demonstrates consistency among different formations, as well as stability while performing dynamic switching between formations. Inter-robots collision avoidance is delivered through formation preservation, while permitt...

Automatic classification of seismic events is of great importance due to the large amount of data received continuously. Seismic analysts classify events by visual inspection and calculation of event signal characteristics. This process is subjective and demands hard work as well as a significant amount of time and considerable experience. A reliable automatic classification task considerably r...

Manufacturers using traditional process control charts to monitor their sheet metal stamping processes often encounter out-of-control signals indicating that the process mean has changed. Unfortunately, a sheet metal stamping process does not have the necessary adjustability in its process variable input settings to allow adjusting the mean response in an out-of-control condition, hence the sig...

OBJECTIVES Identify radiographers' postures during frequent mammography procedures related to the mammography equipment and patient characteristics. METHODS A postural task analysis was performed using images acquired during the simulation of mammography positioning procedures. Simulations included craniocaudal/(CC) and mediolateral-oblique/(MLO) positioning in three different settings: radio...

In this paper, we present a diagonal-intersection-based routing (DIR) protocol for vehicular ad hoc networks. The DIR protocol constructs a series of diagonal intersections between the source and destination vehicles. The DIR protocol is a geographic routing protocol. Based on the geographic routing protocol, source vehicle geographically forwards data packet toward the first diagonal intersect...

While several lower-limb exoskeletons have been designed for adult patients, there remains a lack of pediatric-oriented devices. This paper presented human factor assessment an adjustable pediatric exoskeleton childhood gait assistance. The hip and knee uses frame compatibility with children 6–11 years old. evaluates the device’s comfort ease use through timed donning, doffing, reconfiguration ...

A tunable linear-to-circular polarization converter (LTCPC) for the terahertz (THz) regime which consists of two conductive layers and a graphene transmissive metasurface layer separated by dielectric is reported in this work. The equivalent surface resistance modeling method adopted to investigate peculiar electronic properties graphene. simulation results show that when Fermi energy (Ef) 1.1 ...

Abstract Perpendicular magnetization switching driven by spin‐orbit torque (SOT) exhibits nonvolatility and adjustability, which has great potential applications in magnetic random‐access memory neuromorphic computing. In this work, the SOT efficiency Pt (001)/NiFe (Py) (111)/Py bilayers is first investigated, where single crystal films polycrystalline Py are grown molecular beam epitaxy magnet...

To enable power supply in rural areas and to exploit clean energy, fully renewable systems consisting of cascaded run-of-the-river hydropower volatile energies such as pv wind are built around the world. In islanded operation mode, primary secondary frequency control, i.e., hydro governors automatic generation control (AGC), responsible for stability. However, due limited water storage capacity...