the infrastructure of the electricity grid and super grid system in the hitherto industrialized world was to a large extent built up in the decades following world war ii with a peak in investments around 1960-1980. this means that the flotilla of power transformers is now starting to reach projected lifetime of around 40 years. during the last couple of decades there has also been an ongoing d...

Conventional wisdom holds that remanufacturing is always the most environmentally-sustainable end-of-life treatment for toner and inkjet cartridges. However, life cycle assessments of non-Original Equipment Manufacturer (OEM) remanufactured print cartridges show that issues with print quality, reliability, and end-of-life management practices offset the benefits accrued through reuse. Therefore...

The modern society has come to expect the electrical energy on demand, while many of the facilities in power systems are aging beyond repair and maintenance. The risk of failure is increasing with the aging equipments and can pose serious consequences for continuity of electricity supply. As the equipments used in high voltage power networks are very expensive, economically it may not be feasib...

At present, the analytical method (reliability prediction) is mainly used to calculate equipment reliability of electronic system. But verification and evaluation equipment, which highly reliable, needs a lot time economic costs. In this paper, simulation algorithm based on Monte Carlo proposed verify evaluate reliable GNSS receiver. Which can meet requirements greatly reduce project cost.

The ability to accurately characterize a Photovoltaic (PV) product is critical at every level of system development. The characterization of systems and devices allows research teams and product development groups to not only map the progress of their own technology but also compare it to that of their competitors. Access to state of the art testing equipment thus allows these teams to make eff...

INTRODUCTION Monitoring child growth is a very important tool not only to build useful indicators for the evaluation and planning of public policies, but also for appropriate care to child health. In order to accomplish that anthropometric data from services need to present satisfactory reliability. OBJECTIVE To investigate the reliability of weight and height variables obtained from children...

Merchant shipping has undergone a great transformation over the past three decades. The shipping market is highly competitive, which coupled with high crewing and fuel costs, leads to high operational costs. One of the paramount factor involved in vessel operation is the Maintenance cost and there is a dire need to keep this cost to a minimum. Fortunately th...

In this paper, educational software for the reliability assessment of high/medium-voltage (HV/MV) substations and distribution feeders is presented. It is a useful tool for learning the utility of reliability indices of the HV/MV substations and their distribution feeders, and their influence on the electrical power system operation. By means of an interactive graphical interface, multiple conf...