نتایج جستجو برای: ndt
تعداد نتایج: 1494 فیلتر نتایج به سال:
Non-destructive testing (NDT) methods are important alternatives when destructive tests are not feasible to examine the in situ concrete properties without damaging the structure. The rebound hammer test and the ultrasonic pulse velocity test are two popular NDT methods to examine the properties of concrete. The rebound of the hammer depends on the hardness of the test specimen and ultrasonic p...
The old focus on using automation was simply to increase productivity and reduce costs. Today, global competition is forcing manufacturers not only to contain costs but also to improve quality of products and processes. Thus, the purpose of automation has shifted to broader issues. Highly automated processes ensure high quality on a constant level. But, increasing the degree of automation also ...
Digital shearograohy has demonstrated great potential in revealing defects in objects especially in detecting delaminations in composite materials. It is gaining more and more acceptance by automotive and aerospace industries in the field of nondestructive testing (NDT) of composite materials. A key optical component used in shearography is a shearing device in which the shearing amount, sheari...
Four years ago, the Council of the ERA-EDTA took the wise decision to publish a sister journal to Nephrology, Dialysis, Transplantation. The goal was to issue a bimonthly educational publication for young as well as seasoned nephrologists. Following some brainstorming, the title of the new journal was chosen as ‘NDT Plus’. It was indeed a ‘Plus’ that soon attracted a soaring number of submissio...
In 2011, Nephrology Dialysis and Transplantation (NDT) established a more restrictive selection process for manuscripts submitted to the journal, reducing the acceptance rate from 25% (2008–2009) to currently about 12–15%. To achieve this goal, we decided to score the priority of manuscripts submitted to NDT and to reject more papers at triage than in the past. This new scoring system allows a ...
BACKGROUND Interest in radiation-related health problems has been growing with the increase in the number of workers in radiation-related jobs. Although an occupational level of radiation exposure would not likely cause azoospermia, several studies have reported the relation between radiation exposure and azoospermia after accidental or therapeutic radiation exposure. We describe a case of azoo...
This single-subject experimental design examined the immediate effects of four neurodevelopmental treatment (NDT) activities on two dependent variables: dorsiflexor muscle activity during an equilibrium response and frequency of heel contact during movement to a standing position. The subject was a 2.5-year-old boy with spastic quadriplegia. During the seven days of Baseline 1 Phase, the nine d...
Manufacturing defects and discontinuities in a product are anomalies which can lead to severe damages may sometimes involve loss of life. These must be examined corrected before the goes into service. There two methods testing for viz. Destructive Testing Non-Destructive Testing. entails subjecting conditions that leads failure whereas (NDT) is process examining products way it retains its usef...
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