This thesis studies the reliability of telecommunications equipment, its components, and the systems made using those components. Special attention is paid to creating stronger links between the reliability analyses performed at different hierarchy levels. The thesis starts with a temperature derating study. It is found out that the generic handbook based procedures may not always be very attra...

The goal of work management is lowest cost reliability, which has two parts: equipment reliability and human reliability. Equipment reliability is the final result--where the bottom line is improved by increased production output and lower operating and maintenance costs. Human reliability is the set of activities that leads to those results. Success is measured in terms of equipment reliabilit...

To ensure long-term safe and reliable plant operation, equipment operability availability must also be ensured by setting a group of processes to established within the nuclear power plant. Equipment reliability process represents integration coordination important activities into one process, which enables performance condition monitoring, preventive maintenance development, implementation opt...

For equipment and systems that are too expensive and too important to fail such as launch vehicles and spacecraft, the actual reliability is dominated by infant mortality failures that occur soon after dynamic environmental ATP that is used to eliminate the equipment that will fail prematurely. Premature equipment failures greatly increase risk getting to space and working in space, slowing dow...

introduction: nowadays, more than 10,000 different types of medical devices can be found in hospitals. this way, medical electrical equipment is being employed in a wide variety of fields in medical sciences with different physiological effects and measurements. hospitals and medical centers must ensure that their critical medical devices are safe, accurate, reliable and operational at the requ...

We present two stochastic failure models for the reliability evaluation of manufacturing equipment that degrades due to its complex operating environment. The first model examines the case when the environment is a temporally nonhomogeneous continuous-time Markov chain, and the second assumes the environment is a temporally homogeneous semi-Markov process on a finite space. Derived are transfor...

Ankle ligament sprains are the most common injury in soccer. The high rate of these injuries demonstrates a need for novel data collection methodologies. Therefore, soccer shoes and shin guards were instrumented with inertial sensors to measure ankle joint kinematics in the field. The purpose of this study was to assess test-retest reliability and concurrent criterion validity of a kinematic as...