This article has focused on evaluation and identification of effective parameters in positioning performance with an odometry approach of an omni-directional mobile robot. Although there has been research in this field, but in this paper, a new approach has been proposed for mobile robot in positioning performance. With respect to experimental investigations of different parameters in omni-dire...

key Research Questions 1. What linkages are currently being evaluated? 2. What are the outcomes of these linkages? 3. What types of linkages are most effective and in what context? 4. What are the current research gaps? 5. How should policies and programmes be strengthened? Benefits (i) Bi-directional linkages between SRH and HIV-related policies and programmes can lead to a number of important...

Rockfall protection barriers are connected to the ground using steel cables fixed with anchors and foundations for the steel posts. It is common practice to measure the forces in the cables, while to date measurements of forces in the foundations have been inadequately resolved. An overview is presented of existing methods to measure the loads on the post foundations of rockfall protection barr...

This paper proposes a novel directional pilot protection method based on the transient energy for bipolar HVDC line. Supposing the positive direction of current is from DC bus to the DC line, in the case of an internal line fault, the transient energies detected on both sides of the line are all negative within a short time, which denotes the positive direction fault; while for an external faul...

This paper analyzes the impacts of Inverter-Interfaced Wind Power Plants (IIWPP), namely Full-Converter Generators and Doubly-Fed Induction Generators, on directional phase-selection protection functions employed in commercial relays. For studies, a system with typical topology used to connect IIWPP grid was modeled MATLAB- Simulink software, contingency scenarios varying fault type, resistance...

We propose and demonstrate a single-fiber bi-directional WDM self-healing ring network with simple bidirectional OADM. By employing our proposed alternate-path switching scheme, the bi-directional traffic can be restored promptly under single fiber failure. Introduction Bi-directional wavelength division multiplexing (WDM) self-healing ring (SHR) network [1-2] is an attractive and cost-effectiv...

It is well-known that severe deformation to metals causes a direct grain refinement of the matrix without special heat-treatments due to the mechanism of dynamic continuous recrystallization (DCR). However, the microstructural revolution during severe deformation is seemed to be different depending on the deformation mode, namely the direction of deformation. In general, multi-directional defor...

We explore a flexible and non-intrusive opportunistic spectrum access control mechanism for cognitive radios that goes beyond the standard “Listen-Before-Talk” (LBT) strategy. We exploit the bi-directional nature of many primary communication systems to control cognitive radio access that is based on both spectral sensing and primary receiver acknowledgements. In this work, we limit our attenti...

The conventional value chain that has underpinned utilities for so long is today undergoing disruptive changes. One way flows of energy and digital information are evolving into multi-directional flows of real time data spanning various aspects of operations. A major driver of this dramatic shift is the increasing penetration of consumer centric technologies, such as distributed generation and ...

As the latest standard that is quickly gaining popularity in power substation automation, IEC 61850 offers self-descriptive object data models, standardized configurability with Substation Configuration Language (SCL), the promise of interoperations among intelligent electronic devices (IEDs) from different manufacturers, and lower integration installation costs. The IEC 61850 standard initiall...