Results 31 to 40 of about 5,213 (259)

A Robust Approach to Optimal Matched Filter Design in Ultrasonic Non-Destructive Evaluation (NDE) [PDF]

, 2016
The matched filter was demonstrated to be a powerful yet efficient technique to enhance defect detection and imaging in ultrasonic non-destructive evaluation (NDE) of coarse grain materials, provided that the filter was properly designed and optimized ...
Hayward, Gordon, Li, Minghui
core   +3 more sources

Ultrasonic fingerprinting by phased array transducer

IOP Conference Series: Materials Science and Engineering, 2016
Increasing quantity of spent nuclear fuel that must be under national and international control requires a novel approach to safeguard techniques and equipment. One of the proposed approaches is utilize intrinsic features of casks with spent fuel. In this article an application of a phased array ultrasonic method is considered.
Sednev, Dmitry Andreevich, Kataeva, O., Abramets, V., Pushenko, P., Tverdokhlebova, T.   +4 more
openaire   +2 more sources

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

An annular array with fiber composite microstructure for far field NDT imaging applications [PDF]

, 2010
This paper describes the design and fabrication of a reduced element count annular array for far field NDT imaging applications, built with a random fiber piezoelectric composite microstructure.
Dziewierz, J., Gachagan, A., O'Leary, R.L., Ramadas, S.N., Velichko, A., Wilcox, P.D.   +5 more
core   +1 more source

Optimization Design of Phased Array Ultrasonic Transducer Arrays

DEStech Transactions on Computer Science and Engineering, 2018
The design and selection of the transducer array parameters directly affect the performance of the audio directional transmission system. In this paper, the influence of the number of array element, the pitch, the frequency and the deflection angle on the array directivity is analyzed in detail.
Zhi-qian KANG, Xi-hai LI, Xiang-yu LI
openaire   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Inter-pass peening for residual stress control in additive manufacturing: validation using ultrasonic, X-ray and contour method

Materials & Design
In this study, round-robin experiments were carried out to evaluate the effectiveness of inter-pass peening as an in-process residual stress (RS) mitigation technique for Wire Arc Additive Manufacturing (WAAM) of Ti-6Al-4V components.
Joseph Walker, Brandon Mills, Yashar Javadi, Charles MacLeod, Yongle Sun, Bilal Ahmad, Stewart Williams, Jialuo Ding, Saeed Tamimi   +8 more
doaj   +1 more source

Monitoring fatigue crack growth using nonlinear ultrasonic phased array imaging [PDF]

, 2017
Nonlinear imaging techniques have recently emerged which have the potential to detect material degradation and challenging defects, such as closed cracks.
Cheng, Jingwei, Croxford, Anthony, Drinkwater, Bruce, Potter, Jack   +3 more
core   +2 more sources

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

A reconfigurable all-optical ultrasound transducer array for 3D endoscopic imaging [PDF]

, 2017
A miniature all-optical ultrasound imaging system is presented that generates three-dimensional images using a stationary, real acoustic source aperture. Discrete acoustic sources were sequentially addressed by scanning a focussed optical beam across the
Alles, EJ, Beard, PC, Desjardins, AE, Fook Sheung, N, Noimark, S, Zhang, E   +5 more
core   +1 more source