An increasing number of marine structures are utilizing composite materials. Major structure and components can be built lighter and corrosion-resistant using composite construction. The recreational boating industry has long recognized this and now commercial ferries are increasingly realizing fuel savings through weight reduction. The US Navy’s DDG-1000 topside structure and LPD-17 advanced e...

BACKGROUND Non-Inflammatory Destructive Periodontal Disease (NIDPD), is a severe destructive periodontal disease, that is characterized by the attachment loss and alveolar bone loss, without signs of the gingival inflammation, and the periodontal pocket development. OBJECTIVE Despite the fact that various cases of NIDPD have been reported; their etiology and disease evolution is still indefin...

John S. Popovics Summary Lasers are devices that create a high intensity, directed light beam. The light beam can travel in air or through fiber optic cables. Lasers can be used to generate waves and detect stretching or motion in a solid material without direct contact with the material. Thus lasers are useful in many important engineering applications that require remote non-destructive evalu...

Non-destructive evaluation (NDE) inspections are an integral part of asset integrity management. The relationship between the condition interest and quantity measured by NDE is described with probabilistic models such as PoD or ROC curves. These used to assess quality information provided systems, which affected factors experience inspector, environmental conditions, ease access, precision meas...

The appearance of defects during the manufacture tanker trucks via arc-welding is a significant problem in industry. A reliable low-cost and non-destructive on-line method could aid discovery solutions to overcome productivity problems. Plasma optical spectroscopy was employed this study correlate presence several elemental emission lines with certain quality-related events, such as porosities....

Thermographic flash-pulse inspection is one of popular methods non-destructive testing (NDT) materials. Despite the automation NDT methods, most them are based on visual inspections and results these influenced by skills operators. The repeatability reproducibility (R&R) therefore more important compared to exact gauge-type methods. This study was focused statistical evaluation flash pulse ...

This study proposes a model to evaluate the overall degradation condition of historical plasterworks in three different locations inside Royal Alcazar Seville, Spain. A Severity Degradation Index (Sw) is proposed establish priority intervention while also improving durability and conservation with exceptional heritage features. The Sw numerical index that considers area affected by anomalies, t...

The non-destructive testing and diagnosis of transport infrastructures is essential because the need to protect these facilities for mobility, economic social development. effective timely assessment structural health conditions becomes crucial in order assure safety transportation system time saver protocols, as well reduce excessive repair maintenance costs. Ground penetrating radar (GPR) one...

quality evaluation is one of the effective activities in trade, economy and the health of communities. for this purpose, non-destructive methods are increasingly used, as they are faster and more economical in comparison with destructive ones. this study investigated the feasibility of predicting firmness by laser light backscattering imaging system, as a new non-destructive method for one cult...