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Callejas A, Palma R, Hernández-Figueirido D, Rus G. Damage Detection Using Ultrasonic Techniques in Concrete-Filled Steel Tubes (CFSTs) Columns. SENSORS (BASEL, SWITZERLAND) 2022; 22:4400. [PMID: 35746181 PMCID: PMC9227134 DOI: 10.3390/s22124400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Concrete-filled steel tubes (CFSTs) are structural elements that, as a consequence of an incorrect elaboration, can exhibit internal defects that cannot be visualized, being usually air voids. In this work, the detection of internal damage in CFST samples elaborated with a percentage of contained air voids in concrete, was carried out by performing a complete ultrasound scan using an immersion tank. The analysis of the ultrasound signals shows the differences presented in the amplitude of the fundamental frequency of the signal, and in the Broadband Ultrasound Attenuation (BUA), in comparison with a sample without defects. The main contribution of this study is the application of the BUA technique in CFST samples for the location of air voids. The results present a linear relationship between BUA averages over the window of the CFSTs and the percentage of air voids contained (Pearson's correlation coefficient r = 0.9873), the higher percentage of air voids, the higher values of BUA. The BUA algorithm could be applied effectively to distinguish areas with defects inside the CFSTs. Similar to the BUA results, the analysis in the frequency domain using the FFT and the STFT was sensitive in the detection of internal damage (Pearson's correlation coefficient r = -0.9799, and r = -0.9672, respectively). The results establish an improvement in the evaluation of CFST elements for the detection of internal defects.
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Affiliation(s)
- Antonio Callejas
- Department of Structural Mechanics, University of Granada, 18071 Granada, Spain; (R.P.); (G.R.)
- Instituto de Investigación Biosanitaria, ibs.GRANADA, 18012 Granada, Spain
- Excellence Research Unit “ModelingNature” (MNat), 18071 Granada, Spain
| | - Roberto Palma
- Department of Structural Mechanics, University of Granada, 18071 Granada, Spain; (R.P.); (G.R.)
| | - David Hernández-Figueirido
- Department of Mechanical Engineering and Construction, Universitat Jaume I, 12071 Castellón de la Plana, Spain;
| | - Guillermo Rus
- Department of Structural Mechanics, University of Granada, 18071 Granada, Spain; (R.P.); (G.R.)
- Instituto de Investigación Biosanitaria, ibs.GRANADA, 18012 Granada, Spain
- Excellence Research Unit “ModelingNature” (MNat), 18071 Granada, Spain
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Forero-Bogotá MA, Ojeda-Pardo ML, García-Hermoso A, Correa-Bautista JE, González-Jiménez E, Schmidt-RíoValle J, Navarro-Pérez CF, Gracia-Marco L, Vlachopoulos D, Martínez-Torres J, Ramírez-Vélez R. Body Composition, Nutritional Profile and Muscular Fitness Affect Bone Health in a Sample of Schoolchildren from Colombia: The Fuprecol Study. Nutrients 2017; 9:E106. [PMID: 28165360 PMCID: PMC5331537 DOI: 10.3390/nu9020106] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/05/2016] [Accepted: 12/13/2016] [Indexed: 01/19/2023] Open
Abstract
The objective of the present study is to investigate the relationships between body composition, nutritional profile, muscular fitness (MF) and bone health in a sample of children and adolescents from Colombia. Participants included 1118 children and adolescents (54.6% girls). Calcaneal broadband ultrasound attenuation (c-BUA) was obtained as a marker of bone health. Body composition (fat mass and lean mass) was assessed using bioelectrical impedance analysis. Furthermore height, weight, waist circumference and Tanner stage were measured and body mass index (BMI) was calculated. Standing long-jump (SLJ) and isometric handgrip dynamometry were used respectively as indicators of lower and upper body muscular fitness. A muscular index score was also computed by summing up the standardised values of both SLJ and handgrip strength. Dietary intake and degree of adherence to the Mediterranean diet were assessed by a 7-day recall questionnaire for food frequency and the Kidmed questionnaire. Poor bone health was considered using a z-score cut off of ≤-1.5 standard deviation. Once the results were adjusted for age and Tanner stage, the predisposing factors of having a c-BUA z-score ≤-1.5 standard deviation included being underweight or obese, having an unhealthy lean mass, having an unhealthy fat mass, SLJ performance, handgrip performance, and unhealthy muscular index score. In conclusion, body composition (fat mass and lean body mass) and MF both influenced bone health in a sample of children and adolescents from Colombia. Thus promoting strength adaptation and preservation in Colombian youth will help to improve bone health, an important protective factor against osteoporosis in later life.
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Affiliation(s)
- Mónica Adriana Forero-Bogotá
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Mónica Liliana Ojeda-Pardo
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Antonio García-Hermoso
- Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Universidad de Santiago de Chile, USACH, Región Metropolitana, Santiago 7500618, Chile.
| | - Jorge Enrique Correa-Bautista
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Emilio González-Jiménez
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Jacqueline Schmidt-RíoValle
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Carmen Flores Navarro-Pérez
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Luis Gracia-Marco
- Children's Health and Exercise Research Centre (CHERC), Sport and Health Sciences, University of Exeter, Exeter EX1 2LU, UK.
- GENUD "Growth, Exercise, Nutrition and Development" Research Group, University of Zaragoza, Zaragoza 50009, Spain.
| | - Dimitris Vlachopoulos
- Children's Health and Exercise Research Centre (CHERC), Sport and Health Sciences, University of Exeter, Exeter EX1 2LU, UK.
| | - Javier Martínez-Torres
- Grupo GICAEDS, Facultad de Cultura Física, Deporte y Recreación, Universidad Santo Tomás, Bogotá DC 111221, Colombia.
| | - Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
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Vafaeian B, El-Rich M, El-Bialy T, Adeeb S. The finite element method for micro-scale modeling of ultrasound propagation in cancellous bone. ULTRASONICS 2014; 54:1663-1676. [PMID: 24656933 DOI: 10.1016/j.ultras.2014.02.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 02/25/2014] [Accepted: 02/27/2014] [Indexed: 06/03/2023]
Abstract
Quantitative ultrasound for bone assessment is based on the correlations between ultrasonic parameters and the properties (mechanical and physical) of cancellous bone. To elucidate the correlations, understanding the physics of ultrasound in cancellous bone is demanded. Micro-scale modeling of ultrasound propagation in cancellous bone using the finite-difference time-domain (FDTD) method has been so far utilized as one of the approaches in this regard. However, the FDTD method accompanies two disadvantages: staircase sampling of cancellous bone by finite difference grids leads to generation of wave artifacts at the solid-fluid interface inside the bone; additionally, this method cannot explicitly satisfy the needed perfect-slip conditions at the interface. To overcome these disadvantages, the finite element method (FEM) is proposed in this study. Three-dimensional finite element models of six water-saturated cancellous bone samples with different bone volume were created. The values of speed of sound (SOS) and broadband ultrasound attenuation (BUA) were calculated through the finite element simulations of ultrasound propagation in each sample. Comparing the results with other experimental and simulation studies demonstrated the capabilities of the FEM for micro-scale modeling of ultrasound in water-saturated cancellous bone.
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Affiliation(s)
- B Vafaeian
- Faculty of Engineering, Civil and Environmental Engineering Department, 3-016 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada.
| | - M El-Rich
- Faculty of Engineering, Civil and Environmental Engineering Department, 3-016 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada.
| | - T El-Bialy
- Faculty of Medicine and Dentistry, 7-020D Katz Group Centre for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta T6G 2E1, Canada.
| | - S Adeeb
- Faculty of Engineering, Civil and Environmental Engineering Department, 3-016 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada.
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