نتایج جستجو برای: nondestructive tests

تعداد نتایج: 341498  

2000
C. FURLONG R. J. PRYPUTNIEWICZ

With the electronic industry being one of the most dynamic, in terms of new technologies, electronic packages have to be designed and optimized for new and ever more demanding applications in relatively short periods of time. This, in turn, indicates a need for effective quantitative testing methodologies. In this paper, a novel hybridized use of nondestructive, noninvasive, remote, full field ...

2013
Yuhua Cheng Yiming Deng Jing Cao Xin Xiong Libing Bai Zhaojun Li

In this article, the state-of-the-art multi-wave and hybrid imaging techniques in the field of nondestructive evaluation and structural health monitoring were comprehensively reviewed. A new direction for assessment and health monitoring of various structures by capitalizing the advantages of those imaging methods was discussed. Although sharing similar system configurations, the imaging physic...

2016
Diana OLEJNIK Tomasz CHADY Paweł Karol FRANKOWSKI

This paper presents design, construction and control of a quadruped robot, capable to maneuver on vertical surfaces. A nondestructive system integrated with the robot enables location and tracking of rebars in concrete structures. This paper illustrates robot manipulation in the kinematic approach and practical application of the platform dedicated for nondestructive testing. Streszczenie. W ar...

1999
Werner Roye

In the modern motorcar production, more than 300 deep-drawn sheet metal parts are joined together by more than 3,000 spot welds on each car body. To check the spot welds within the framework of the quality assurance, different nondestructive test methods are available in addition to the destructive methods (tear down test, metallographic inspection): the chipping test and the ultrasonic test, w...

Journal: :Physical Review Letters 2021

Nondestructive quantum measurements are central for physics applications ranging from sensing to computing and communication. Employing the toolbox of cavity electrodynamics, we here concatenate two identical nondestructive photon detectors repeatedly detect track a single propagating through $60\,\mathrm{m}$ long optical fiber. By demonstrating that combined signal-to-noise ratio surpasses eac...

Journal: :Journal of biomedical materials research. Part A 2004
Yener N Yeni Gregory T Christopherson A Simon Turner Clifford M Les David P Fyhrie

There is evidence that damage, viscoelastic stiffness properties, and postyield mechanical properties are related in bone tissue. Our objective was to test whether presence of a flaw would have an influence on the apparent viscoelastic properties of bone. Examining the effect of flaw orientation on apparent viscoelastic properties and utilization of dynamic mechanical analysis (DMA) as a nondes...

Journal: :Agriculture 2023

Seed vigor is one of the essential contents agricultural research. The decline seed described as an inevitable process. Recent studies have shown that oxidative damage caused by reactive oxygen species (ROS) main reason for destruction various chemicals in seeds and eventually evolves into death. traditional tests, such germination test TTC staining, are commonly used to assess vigor. However, ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...

Journal: :Composite Structures 2022

Manufacturing of composite laminates using the fiber placement process introduces possibility several types defects and features that are not present in traditional hand-layup fabrication techniques. The effect these on structural performance failure has been fully investigated, especially for those with small geometrical features. innovation lies advanced methods to capture generated during ma...

Journal: :Journal of Infrastructure Preservation and Resilience 2021

Abstract This paper presents a multi-sensor data collection and fusion procedure for nondestructive evaluation/testing (NDE/NDT) of concrete bridge deck. Three NDE technologies, vertical electrical impedance (VEI), ground-penetrating radar (GPR), high-definition imaging (HDI) surface crack detection, were deployed on the A neural network autoencoder was trained to quantify relationship between ...

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