نتایج جستجو برای: Non-Destructive

تعداد نتایج: 1329445  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

Journal: :international journal of architectural engineering and urban planning 0
اصغر محمدمرادی asghar mohammad moradi faculty of architecture and urban planning of iran university of science and technologyدانشکده معماری و شهرسازی دانشگاه علم وصنعت ایران محمدصادق طاهرطلوع دل mohammad sadegh taher tolou del faculty of architecture and urban planning of iran university of science and technologyدانشکده معماری و شهرسازی دانشگاه علم وصنعت ایران

the importance of iranian ancient as architectural heritage have to competent international prestige a nd respect due this is important with regard to proper conservation met hods based on non-destructive evaluation methods and non-contact testing providing enough accuracy and speed to bri ng performance to stabilize while correct location and age value of valuable architectural aspect of quant...

Journal: :the modares journal of electrical engineering 2008
ahmad. reza sharafat m. h. miran-beigi s. v. shojaeddini

one of the challenges in non-destructive testing schemes using the ultrasound pulse-echo technique is to identify those defects whose sizes are less than or equal to the detection resolution that is dependent on the width of the ultrasound pulse. existing methods also require a reference specimen of the same defective material, which may not be available in some cases. we present a new method f...

Journal: :journal of modern processes in manufacturing and production 2015
sayed ali mousavi

non-destructive testing & evaluation methods are developed to inspect and investigate materialsand structures. ultrasonic testing is an ndt method can be used for measuring the thickness ofobjects, as one of its significant applications. the objective of this paper is designing and applyingan intelligent ut fuzzy control system for evaluating the thickness of thin metal objects in a rangeof...

Journal: :international journal of civil engineering 0
r. abbasnia tehran, iran a. farsaei tehran, iran

corrosion of reinforcing steel and other embedded metals is the main cause of severe deterioration in reinforced concrete structures which subsequently imposes adverse effects on ultimate and serviceability limit state performance of the whole structure. in this paper, a new corrosion detection method for reinforced concrete beams, based on wavelet analysis is presented. to evaluate the capabil...

Journal: :Journal of Applied Mechanics 1991

Journal: :Nature Physics 2013

Journal: :Tetsu-to-Hagane 1984

2012
C. Mineo D. Herbert M. Morozov S. G. Pierce

Automation of non-destructive testing (NDT) of engineering components and structures represents one of the strategic objectives of many industries. It enables increases in accuracy, precision and speed of inspection while reducing production time and associated labour costs in contrast to manual inspection. The use of robots can provide additional flexibility and autonomy to automated NDT. Auto...

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