Results 241 to 250 of about 67,775 (286)

Herbarium specimens reveal drivers of Arctic shrub growth

open access: yes
New Phytologist, EarlyView.
Natalie Iwanycki Ahlstrand   +3 more
wiley   +1 more source

Nondestructive Evaluation

Science, 1979
Nondestructive evaluation is a technique for determining the presence, type, and size of flaws in mechanical structures without destroying them. A description of various types of nondestructive evaluation methods is given in this article. Particular attention is paid to acoustic wave probing techniques.
openaire   +2 more sources

Nondestructive Evaluation 4.0: Ultrasonic Intelligent Nondestructive Testing and Evaluation for Composites

Research in Nondestructive Evaluation, 2020
With the continuous promotion of Industry 4.0, the mass production of composites will be entering Industry 4.0 in the near future.
Songping Liu   +4 more
openaire   +1 more source

Acoustographic nondestructive evaluation

IEEE 1988 Ultrasonics Symposium Proceedings., 2003
The authors discuss some of the basic principles underlying acoustography and its use as a nondestructive evaluation methodology. Acoustography is a process of forming ultrasonic images in a manner analogous to radiography and fluoroscopy. A sound source insonifies the test object with a uniform field of ultrasound. As the ultrasonic waves pass through
J.S. Sandhu, R.E. Thomas
openaire   +1 more source

Nondestructive evaluation of piers

SPIE Proceedings, 2015
This paper proposes a vibration-based damage detection method designed for structural elements subjected to important vertical loads, as columns or pillars. The method is based on the relation existing between the energy stored in the pillar in several vibration modes and the corresponding natural frequencies. For a certain mode, this energy results as
Ionica Negru   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy