With the continuous development of power grid, investment equipment assets is increasing sharply during 13th Five Year Plan Period. There a growing need for maintenance as ages and varies in different types from transmission to distribution equipment. Equipment base element healthy grid development. Therefore, it important raise efficiency quality status via operation maintenance. To improve ef...

In this article, we apply sub-terahertz waves to imaging a target about 1 meter away from the measurement equipment and evaluate image quality for non-destructive inspection. We show results of range items with confirm that some them are penetrated.

It is estimated that over 25% of the world's commercial airline fleets are composed of aircraft over the age of 20 years. As a result of these aircraft exceeding their initial projected lifetime the issue of in-service inspection has become critical for the safe and economical management of fleets. The requirement for reducing inspection time by minimising 'false calls' and avoiding inspection ...

A 7-year-old gelded Irish sports horse weighing 650 kg was anesthetized on 2 consecutive days for lavage of a septic right radio-carpal joint. On both occasions the endotracheal tube connector, which had been bound in medical tape to produce an airtight seal, functioned as a unidirectional valve during mechanical ventilation, retarding expiration, imposing positive end expiratory pressure (PEEP...

In the oil and gas industry, the pipeline is a major component in the transmission and distribution process of oil and gas. Oil and gas distribution process sometimes performed past the pipeline across the various types of environmental conditions. Therefore, in the transmission and distribution process of oil and gas, a pipeline should operate safely so that it does not harm the surrounding en...

The safety of blood transfusion has attained tremendous importance because of the problems posed by acquired immunodeficiency syndrome (AIDS) and other transfusion-transmissible diseases. While performing screening tests for human immunodeficiency virus (HIV) antibodies in donated blood is indispensable, it is also essential to introduce an effective quality assurance programme covering inspect...

The purpose of this study was to evaluate the use of a laser fluorescence device for detection of occlusal caries in permanent teeth. One hundred and ninety-nine non-cavitated teeth from 26 patients aged 10 to 13 years were selected. After dental prophylaxis, two previously calibrated dentists examined the teeth. Visual inspection, radiographic examination and laser measurements were performed ...

2D arrays, also called matrix arrays, have recently appeared on the market providing key advantages to improve inspection methods and results. In particular, point focus ability, tilt and skew angle scanning are both promising features that new electronic equipment makers are promoting. Volume Focusing, when used with 2D arrays, yields high inspection speeds, interaction of UT waves and flaws, ...