Technical diagnosis is often confronted with machines that still work but should possibly be repaired to increase eeciency or to avoid general failure. Post-mortem repair strategies are usually too late and tend to increase costs. Prophylactic maintenance of machinery at regular intervals does not lead to unexpected breakdowns but is equally costly. The best strategy would be repairing or repla...

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...

Reliability is an important consideration in the planning, design and operation of engineeringsystems. As the size and complexity of mining equipment continue to increase, the implica-tions of equipment failure become ever more critical. One method to mitigate the impact offailures is to improve the reliability of the equipment. One of the purposes of system reliabil-ity analysi...

BACKGROUND This study seeks to increase clinical operational efficiency and accelerator beam consistency by retrospectively investigating the application of statistical process control (SPC) to linear accelerator beam steering parameters to determine the utility of such a methodology in detecting changes prior to equipment failure (interlocks actuated). METHODS Steering coil currents (SCC) fo...

OBJECTIVE To introduce the notion of noninvasive mechanical ventilation as an alternative for invasive ventilation in children, describing advantages and disadvantages, indications, and the process of equipment installation. SOURCE OF DATA Literature review through PubMed/Medline, using as source articles focusing on noninvasive ventilation in pediatric populations, as well as consensus state...

3rd generation partnership project (3GPP) Long Term Evolution-Advanced (LTE-A) defines a wireless network standard for high packet transmission rate and low packet latency provisions. When a user equipment (UE) moves away from signal range of serving cell may cause the received signal strength weakened, even if disconnected. To solve this problem, it is necessary to execute handover procedure. ...

In this century, medical imaging is at the heart of medical practice. Besides providing fast and accurate diagnosis, advances in radiology equipment offer new and previously non-existing options for treatment guidance with quite low morbidity, resulting in the improvement of health outcomes and quality of life for the patients. Although rapid technological development created new medical imagin...

understanding various aspects of the problems, challenges and constraints of agricultural activities such as mushroom ventures and trying to plan and policy for solving problems are suitable strategies for developing agri– businesses. the purpose of this qualitative study was to explain the challenges and constraints of developing mushroom venturesin kermanshah province. information were collec...

Mechanical parts such as gears and bearings used in mechanical equipment have a finite lifetime because of corrosion and wear. If the parts are in abnormal operation and is not detected, it may cause catastrophic component failure during operation. One effective approach to detect signs of potential failure of the mechanical equipment is to examine the debris particles in its lubricating oil. T...