Results 41 to 50 of about 30,223 (236)

Experimental investigation of mechanical and physical properties of glass fiber reinforced concretes produced with different magnetized waters

Journal of Sustainable Construction Materials and Technologies
Magnetized water may act as a thickener in cementitious mixtures due to its slippery effect. Therefore, it can be beneficial for the mixture to settle easily and to improve its strength.
Heydar Dehghanpour, Yasemin Hatipoğlu, Volkan Ozdal, Muhammed Maraşlı, Doğu Ramazanoğlu, Serkan Subaşı   +5 more
doaj   +1 more source

An APDR/UPV/Light Multisensor-Based Indoor Positioning Method via Factor Graph Optimization

IEEE Transactions on Instrumentation and Measurement
With the rapid development of microelectromechanical systems (MEMS), smartphones become one of the most convenient tools to realize pedestrian positioning during daily life.
Chen Chen, Yicheng Wang, Yuwei Chen, Changhui Jiang, Jianxin Jia, Yuming Bo, Bin Zhu, Haojie Dai, Juha Hyyppä   +8 more
semanticscholar   +1 more source

AN IMPROVED PREDICTION MODEL FOR BOND STRENGTH OF DEFORMED BARS IN RC USING UPV TEST AND ARTIFICIAL NEURAL NETWORK

, 2020
The composite action of reinforcement in the surrounding concrete involve a complex and nonlinear mechanism. Inadequate understanding of the underlying interactions may lead to designs with insufficient amount of bond resistance of reinforcing bars in ...
N. Concha
semanticscholar   +1 more source

A Unified Equation for Prediction of Concrete Strength at Various Ages Using the Ultrasonic Pulse Velocity

Applied Sciences, 2022
Using ultrasonic pulse velocity (UPV) testing has long been regarded as an effective approach for evaluating concrete strength; however, because of the influence of numerous factors (e.g., mixture proportion, type of coarse aggregate, pozzolanic ...
Yung-Chiang Lin, Yiching Lin, Chia-Chi Cheng   +2 more
doaj   +1 more source

Enhancing structural integrity of refractories during manufacturing through integration of UPV and acoustic nonlinearity measurements

Nondestructive Testing and Evaluation
This paper addresses the critical need for robust quality assurance in commercial refractories, emphasizing the role of Ultrasonic Pulse Velocity (UPV) testing in assessing material integrity. Traditionally, UPV testing has become a standard practice for
Mohammed Aslam, Y. Choi, Jaesun Lee
semanticscholar   +1 more source

Comparative Study of UPV and IE Results on Concrete Cores from Existing Structures

Civil Engineering Journal
Dynamic non-destructive methods (NDT) are particularly attractive owing to their time and cost efficiency when compared to conventional uniaxial compressive strength tests.
Vassilis G. Siorikis, Constantinos P. Antonopoulos, G. Hatzigeorgiou, Panagiotis Pelekis   +3 more
semanticscholar   +1 more source

Effect of polypropylene plastic on concrete properties as a partial replacement of stone and brick aggregate

Case Studies in Construction Materials, 2021
The application of waste materials in concrete is getting more popular in the concrete industries as it can reduce the associated costs and environmental impacts.
Md. Jahidul Islam, Md. Shahjalal
doaj   +1 more source

UPV-28-UNITO at SemEval-2019 Task 7: Exploiting Post’s Nesting and Syntax Information for Rumor Stance Classification

International Workshop on Semantic Evaluation, 2019
In the present paper we describe the UPV-28-UNITO system’s submission to the RumorEval 2019 shared task. The approach we applied for addressing both the subtasks of the contest exploits both classical machine learning algorithms and word embeddings, and ...
Bilal Ghanem, Alessandra Teresa Cignarella, C. Bosco, Paolo Rosso, F. M. R. Pardo   +4 more
semanticscholar   +1 more source

Temporal and spatial variations of the absolute reflectivity of Jupiter and Saturn from 0.38 to 1.7 $\mu$m with PlanetCam-UPV/EHU [PDF]

, 2017
We provide measurements of the absolute reflectivity of Jupiter and Saturn along their central meridians in filters covering a wide range of visible and near-infrared wavelengths (from 0.38 to 1.7 $\mu$m) that are not often presented in the literature ...
I. Mendikoa, A. Sánchez‐Lavega, S. Pérez-Hoyos, R. Hueso, J. F. Rojas, J. López-Santiago   +5 more
semanticscholar   +1 more source

The assessment of concrete subjected to preloading using non destructive testing methods

Case Studies in Construction Materials, 2021
Different non-destructive tests are in use for the structural health monitoring. Test variables affecting non destructive behavior of concrete were discussed by some researchers, including the effect of instantaneous loading during testing for ultrasonic
Azad A. Mohammed, Serwan K. Rafiq, Niyan A. Hamid   +2 more
doaj   +1 more source