Results 91 to 100 of about 15,172 (317)

Sub‐Diffraction Nanolithography of Halide Perovskite via Reversible All‐Optical Crystallization–Decomposition

Advanced Materials, EarlyView.
A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan, Xiao Huang, Fangyi Zhang, Qiming Zhang, Min Gu   +4 more
wiley   +1 more source

Effect of Pouring Time on the Integrity of Pulverized Fuel Ash Concrete

Applied Sciences
The effects of pouring time intervals on the integrity of pulverized fuel ash (PFA) concrete were evaluated by measuring ultrasonic pulse velocity and compressive strength.
Longyue Ni, Dapeng Zheng, Haibin Yang, Xiaobo Ding   +3 more
doaj   +1 more source

THE EFFECT OF VARIATION CONCRETE CUBE OF AXIAL LOAD ON ULTRASONIC PULSE VELOCITY TRANSMITTER

Journal of the Civil Engineering Forum, 2015
Nowadays, Non Destructive Tests have been applied in some quality evaluation of existing concretes on site. One of the Non Destructive Test (NDT) methods is the application of the Ultrasonic Pulse Velocity (UPV) method. In general, utilizations of UPV as
Faqih Ma’arif, Priyosulistyo Priyosulistyo, Ashar Saputra   +2 more
doaj   +1 more source

Estudo da aplicabilidade do ultra-som na avaliação das propriedades do concreto asfáltico [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2009O ensaio do ultra-som faz parte dos ensaios não destrutivos de análise das propriedades dos materiais ...
Guerrero Pérez, Yader Alfonso
core  

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Investigation of relationships between ultrasonic pulse velocity and thermal conductivity coefficient in foam concretes

, 2016
In this study, using type CEM I 42.5 R Portland cement, limestone powder, polypropylene fibers and super plasticizer, additive foam concrete specimens were produced.
Davraz, M., Koru, M., Kilinçarslan, Ş., Tuzlak, F.   +3 more
core   +1 more source

Compressive Strength-Ultrasonic Pulse Velocity Relationship of Concrete Containing Plastic Waste

IOP Conference Series: Materials Science and Engineering, 2020
In this paper the relationship between compressive strength and non-destructive behavior of ultrasonic pulse velocity (UPV) of concrete containing different plastic wastes has been investigated.
A. Mohammed
semanticscholar   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes

Advanced Materials Technologies, EarlyView.
Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva, Asal Kiazadeh, Raquel Azevedo Martins, António Dias, Jorge Martins, Luís Mendes, João Vaz, Rodrigo Martins, Elvira Fortunato, Emanuel Carlos, Jonas Deuermeier   +10 more
wiley   +1 more source

Ultrasonic Pulse Velocity Evaluation of Cementitious Materials

, 2011
T. H. Panzera1, A. L. Christoforo1, F. P. Cota1, P. H. R. Borges2 and C. R. Bowen3 1Department of Mechanical Engineering, Federal University of Sao Joao del Rei UFSJ, Praca Frei Orlando, 170 Sao Joao Del Rei – MG, 2Department of Civil Engineering, Federal Centre for Technological Education of Minas Gerais, CEFET-MG, 3Materials Research Centre ...
Tulio H. Panzera, Andre L. Christoforo, Fabio de Paiva Cota, Paulo H. Ribeiro Borges, Christopher R. Bowen   +4 more
openaire   +2 more sources