In this paper a noble method of fault locating in a radial power distribution system is discussed. Fuzzy system will ease the calculation involved. The history associated with fault occurred in power system can be effectively used as a strong database. This database will act as the trainer to the fuzzy expert system. A rich history of faulty area will enhance the performance of the fuzzy fault ...

In this paper, we considered the wavelength division multiplexing (WDM) optical networks that transmit large quantities of data. These networks need to be maintained fault-free at all times of their operation so the protection and restoration strategies are critical to provide optical network survivability from a variety of failure scenarios that can occur in this environment. Any failure may c...

The leading cause of oral pain and tooth loss is from caries and their treatment include restoration using amalgam, resin, porcelain and gold, endodontic therapy and extraction. Resin composite restorations have grown popular over the last half a century because it can take shades more similar to enamel. Here, we discuss the history and use of resin, comparison between amalgam and resin, clinic...

wetlands in the lower reaches of songhua river (lrsr), northeast china, are rich in biodiversityand natural resources, which provide crucial staging and wintering habitats for various endangered species.however, in the past five decades, the size of this wetland area has decreased, and its quality has deteriorated because of increased natural and human activities. wetland restoration is critica...

Anterior single tooth replacement with immediate implants has become a predictable and well-established treatment modality in the modern implant practice. The restoration protocol of these cases is also a challenging subject for clinicians because of esthetic demands of patients. Atraumatic root removal, placing a single implant properly and contoured provisional restoration bring success in th...

Diseases such as gastroesophageal reflux disease (GERD), bulimia, anorexia, and extrinsic alimentary factors may cause dental erosion (DE). The minimally invasive therapeutic attitude preserves the remaining healthy tooth structure. In the earlier stages, the direct restoration of dental lesions is possible, using composite materials. In advanced stages of DE, prosthetic treatments are recommen...

We draw an analogy between the deconfining transition in the 2+1 dimensional Georgi-Glashow model and the chiral phase transition in 3+1 dimensional QCD. Based on the detailed analysis of the former [1] we suggest that the chiral symmetry restoration in QCD at high temperature is driven by the thermal ensemble of baryons and antibaryons. The chiral symmetry is restored when roughly half of the ...

To protect against possible network node or link failure, pre-planned failure recovery schemes are necessary to achieve higher reliability of communications. A couple of schemes have been previously reported for multicast. In this paper, we present a scheme based on a “dual-tree” structure in which a secondary tree for fault-tolerance purpose is built as a complement to the primary multicast tr...