نتایج جستجو برای: nondestructive method

تعداد نتایج: 1633342  

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1981

2015
Lei Kang Steve Dixon Kaican Wang Jingmin Dai

The amplitude of an ultrasonic signal generated by electromagnetic acoustic transducers (EMATs) is typically low when compared to those generated by contacting transducers, which restricts the application of EMATs in the fields of nondestructive testing and nondestructive evaluation. The transmission process of a surface wave EMAT is studied, based on a previously established 3-D model, with th...

Journal: :Physical review letters 2004
M Drewsen A Mortensen R Martinussen P Staanum J L Sørensen

We demonstrate a simple and nondestructive method for identification of a single molecular ion sympathetically cooled by a single laser cooled atomic ion in a linear Paul trap. The technique is based on a precise nondestructive determination of the molecular ion mass through a measurement of the eigenfrequency of a common motional mode of the two ions. The demonstrated mass resolution is suffic...

2008
James Bader

Nondestructive evaluation (NDE) is a means of evaluating structural components without damaging them. It can be used to evaluate structural systems, as well as specific structural components. Nondestructive testing is particularly useful for evaluating inservice bridges, since the bridges can remain in tact and open to traffic during the inspection and evaluation period. The NDE methods discuss...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Sung-Yon Kim Jae Hun Cho Evan Murray Naveed Bakh Heejin Choi Kimberly Ohn Luzdary Ruelas Austin Hubbert Meg McCue Sara L Vassallo Philipp J Keller Kwanghun Chung

Nondestructive chemical processing of porous samples such as fixed biological tissues typically relies on molecular diffusion. Diffusion into a porous structure is a slow process that significantly delays completion of chemical processing. Here, we present a novel electrokinetic method termed stochastic electrotransport for rapid nondestructive processing of porous samples. This method uses a r...

Journal: :International journal of occupational safety and ergonomics : JOSE 2009
Grzegorz Gralewicz Bogusław Wiecek

This is a study of the possibilities of a qualitative evaluation of protective materials with active thermography. It presents a simulation of a periodic excitation of a multilayer composite material. Tests were conducted with lock-in thermography on Kevlar composite consisting of 16 layers of Kevlar fabric reinforced with formaldehyde resin with implanted delamination defects. Lock-in thermogr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید