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Journal articles on the topic 'Masonry – Testing – Mathematical models'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Stara, Marie. "Testing of Pre-Stressing Masonry Wall with Using Different Thickness of Anchor Plates." Advanced Materials Research 1082 (December 2014): 211–15. http://dx.doi.org/10.4028/www.scientific.net/amr.1082.211.

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Contribution deals with experimental measurements of deformations in the place exposed to local load caused by additional pre-stressing. The measurements are made at the masonry brick corner built in the laboratory equipment. The laboratory equipment was designed at Faculty of Civil Engineering VŠB – TU Ostrava for measurement tri-axial stress-strain conditions in masonry. In this brick corner one pre-stressing bar is placed. And on the pre-stressing bar is anchored to the anchor plate which transfer pre-stressing forces to the masonry. The thickness of brick corner is 440mm and anchor plate

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2

Quinonez, Alvaro, Jennifer Zessin, Aissata Nutzel, and John Ochsendorf. "Small-Scale Models for Testing Masonry Structures." Advanced Materials Research 133-134 (October 2010): 497–502. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.497.

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Experiments may be used to verify numerical and analytical results, but large-scale model testing is associated with high costs and lengthy set-up times. In contrast, small-scale model testing is inexpensive, non-invasive, and easy to replicate over several trials. This paper proposes a new method of masonry model generation using three-dimensional printing technology. Small-scale models are created as an assemblage of individual blocks representing the original structure’s geometry and stereotomy. Two model domes are tested to collapse due to outward support displacements, and experimental da

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3

Jasiński, Radosław, and Iwona Galman. "Testing Joints between Walls Made of AAC Masonry Units." Buildings 10, no. 4 (2020): 69. http://dx.doi.org/10.3390/buildings10040069.

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Joints between walls are very important for structural analysis of each masonry building at the global and local level. This issue has often been neglected in the case of traditional joints and relatively squat walls. At present, the issue of wall joints is becoming particularly important due to the continuous drive for simplifying structures, introducing new technologies and materials. Eurocode 6 and other standards (American, Canadian, Chinese, and Japanese) recommend inspecting joints between walls, but no detailed procedures have been specified. This paper presents our own tests on joints

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4

Wac-Wlodarczyk, A., R. Goleman, D. Czerwinski, and T. Gizewski. "Mathematical models applied in inductive non-destructive testing." Journal of Magnetism and Magnetic Materials 320, no. 20 (2008): e1044-e1048. http://dx.doi.org/10.1016/j.jmmm.2008.04.179.

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5

Yang, Chun Xia, Ya Ying Wu, and Wei Jun Yang. "Research on the Rigid Homogenization Theory of Masonry Structures Based on Regular Tessellation Theory." Applied Mechanics and Materials 204-208 (October 2012): 790–98. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.790.

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Regular tessellation theory was firstly introduced to deconstruct cells and partition masonry periodically in two dimensions in this paper, the method of regular deconstruction of masonry structures was proposed. In addition, the relationship in mathematical models between the basic cells and RVE was explored, the basic cells and the corresponding RVE boundary and initial conditions was derived.

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6

Cohen, Gregory L., Richard E. Klingner, John R. Hayes, and Steven C. Sweeney. "Seismic Evaluation of Low-Rise Reinforced Masonry Buildings with Flexible Diaphragms: II. Analytical Modeling." Earthquake Spectra 20, no. 3 (2004): 803–24. http://dx.doi.org/10.1193/1.1776559.

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This and a companion paper compare the results from shaking-table testing, quasi-static testing, and analytical predictions to provide a coherent description of the seismic response of low-rise reinforced masonry buildings with flexible roof diaphragms. This paper presents the development, implementation, and results of coordinated analytical modeling intended to corroborate and extend the results of experimental work discussed in a companion paper, Part I: Seismic and Quasi-Static Testing, and more important, examine the efficacy and accuracy of different analytical modeling approaches. Speci

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7

Ramos, Luís F., and Ziba Sharafi. "Tube-Jack Testing for Irregular Masonry Walls: First Studies." Advanced Materials Research 133-134 (October 2010): 229–34. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.229.

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One of the most well-known non-destructive methods for inspection and diagnosis in historical masonry walls is the flat-jack testing. Although it gives qualitative and valuable results about the local stress level and the deformability of the masonry material, when testing on irregular masonry walls, or walls with larger stone units, experimental and practical problems might occur, leading to inaccurate or useless results. In addition, the testing apparatus is labor, with difficulties in sawing task. Another limitation is the difficulty to test multi-leaves walls. To overturn these problems an

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8

Peng, Xiao Chuang, and Shao Hui Chen. "The Research for Cylinder Pressure and Penetration Method in Comprehensive Testing Mortar Strength." Applied Mechanics and Materials 275-277 (January 2013): 1194–98. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1194.

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This paper briefly introduced the cylinder pressure - injection synthesis method which is detection masonry structure mortar strength technology principle, the technology based on the mathematical statistics method for data correction processing, and it combines the advantages between cylinder pressure method and penetration method ,and this method and more accurate and reliable than a single detection technique.

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9

Tomaževič, Miha, and Tomaž Velechovsky. "Some aspects of testing small-scale masonry building models on simple earthquake simulators." Earthquake Engineering & Structural Dynamics 21, no. 11 (1992): 945–63. http://dx.doi.org/10.1002/eqe.4290211102.

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10

Shrestha, Jagat Kumar, and Sujit Bhandari. "A Model for In-Plane Capacity of Multi-Leaf Stone Masonry Walls." Journal of Engineering 2020 (February 7, 2020): 1–11. http://dx.doi.org/10.1155/2020/4028675.

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Masonry walls with distinct layers, known as multi-leaf masonry walls, are prevalent in many regions of the world including ancient architecture in Europe and new construction in the Himalayan region of South Asia. This paper presents a model for determining the capacity of multi-leaf stone masonry wall from its physical and mechanical parameters. For the study, a “Standard Wall” with typical properties of a multi-leaf stone masonry wall is defined and the capacity of the stone masonry wall is studied varying different physical and mechanical parameters of the wall to explore an analytical mod

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11

Huang, Liang, Xiang Gao, Chu Xian Shi, and Sheng Yun Chen. "The Seismic Response of 1/4-Scale Frame — Supported Reinforced Masonry Shear Wall." Key Engineering Materials 400-402 (October 2008): 725–30. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.725.

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The study of this paper focuses on the seismic performance of a new complex tall building-FSRMW (frame-supported-reinforced-masonry-shear-wall).The new structure combines the advantages of RMW (reinforced-masonry-shear-wall) and FSRCW (frame-supported- reinforced- concrete-shear-wall) and have good economic value and extensive use value.Big space can be gained by using the structure, which provide a new appropriate selection for the design of hotel, multifunctional office building and dwelling house with shop at bottom. Substructure pseudodynamic testing were adopted to carrying out the seismi

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12

Adishchev, Vladimir, Irina Kucherenko, and Maria Teterina. "Strength and rigidity of the masonry fragment in a fuzzy setting." EPJ Web of Conferences 221 (2019): 01027. http://dx.doi.org/10.1051/epjconf/201922101027.

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The strength and stiffness of masonry depend on various factors, such as the properties of the brick and mortar, their specific volume, relative position and quality of adhesive bonds. A high degree of uncertainty of these factors and a large scatter of experimental data in the testing of bricks and mortar are the important features of the masonry. In this paper, we present a mathematical model that allows us to determine the averaged characteristics of masonry based on the mechanical properties of substructural materials and their specific volume content in a fuzzy setting. All input paramete

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13

Rots, Jan G., Francesco Messali, Rita Esposito, Valentina Mariani, and Samira Jafari. "Multi-Scale Approach towards Groningen Masonry and Induced Seismicity." Key Engineering Materials 747 (July 2017): 653–61. http://dx.doi.org/10.4028/www.scientific.net/kem.747.653.

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In the last years, the induced seismicity in the northern part of the Netherlands has considerably increased. The existing building stock was not designed for seismic loading, and it is characterised by very slender walls, limited cooperation between walls and floors, and use of cavity walls. As a consequence, the validation of analytical and numerical models for the assessment of unreinforced masonry buildings and the characterisation of the masonry at both material and structural level have become of great importance. An extensive large-scale testing program was performed at the Delft Univer

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14

Florentino, Helenice de Oliveira. "Mathematical tool to size rural digesters." Scientia Agricola 60, no. 1 (2003): 185–90. http://dx.doi.org/10.1590/s0103-90162003000100028.

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Anaerobic digesters have been highlighted due to the current energy crisis and its consequent search for alternative energy sources, allied to the intense process of livestock farming and agriculture modernization, which besides demanding a lot of energy, produces a great amount of crop and animal residues, most of the times generating sanitary problems. The aim of this work is to provide a mathematical tool to establish parameters for projects of construction of rural digesters, considering the response to energy demand, the suitability of the dimensions of the systems, yield factors and the

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15

Purwanto, Burhan Eko, Icha Jusmalisa, Indah Permata Sari, Agus Jatmiko, and Andika Eko Pasetiyo. "Learning Models to Improved Mathematical Communication Skills." Desimal: Jurnal Matematika 3, no. 1 (2020): 7–16. http://dx.doi.org/10.24042/djm.v3i1.5650.

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The problem faced by students in slow learning is in terms of communication. The use of Auditory, Intellectually, Repetition (AIR) and Cooperative Think Pair Share (TPS) types is needed to help students communicate mathematically in expressing mathematical ideas. This study aims to determine whether or not there are differences in mathematical communication skills of students using the Auditory, Intellectually, Repetition (AIR) learning model with students who use Think Pair Share (TPS) Cooperative learning models. This research uses a quantitative approach using the Quasi Experiment method. T

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16

Taha, M. M. Reda, A. Noureldin, N. El-Sheimy, and N. G. Shrive. "Artificial neural networks for predicting creep with an example application to structural masonry." Canadian Journal of Civil Engineering 30, no. 3 (2003): 523–32. http://dx.doi.org/10.1139/l03-003.

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Numerous creep models with limited accuracy have been developed within the last few decades to predict creep of concrete and masonry structures. The stochastic nature of creep deformation and its reliance on a large number of interdependent parameters (e.g., the brick and mortar types, the relative humidity, and the history and level of applied loading) make developing a single, general, and yet accurate mathematical model almost impossible. Artificial neural networks (ANNs) have been recently introduced as an efficient artificial intelligence modeling technique for applications incorporating

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17

Feinberg, Alec. "Accelerated Reliability Growth Models." Journal of the IEST 37, no. 1 (1994): 17–23. http://dx.doi.org/10.17764/jiet.2.37.1.f2u73m8022207868.

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Extending reliability growth so that it can be applied in the area of accelerated testing will enable one to apply all the reliability growth tools and their planning advantages. This paper describes linking these two areas together into what is termed accelerated reliability growth testing (ARGT). Mathematical equations of ARGT for both iso-stress and step-stress accelerated testing are modelled.

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18

Figoń, Piotr. "Mathematical models of single-phase long lines." Bulletin of the Military University of Technology 68, no. 4 (2020): 119–37. http://dx.doi.org/10.5604/01.3001.0013.9735.

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Most simulation packages provide long line models containing only two input terminals and two output terminals. These models allow testing transient states initiated by the occurrence of interference at the ends of the line. For this reason, it is not possible to study disorders occurring at any point of the electrical network. The article describes in detail the mathematical models of the long line, their implementation in the Matlab environment and exemplary results of computer simulations. Keywords: power line, state variables, differential scheme

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19

Peeters, Bart, Herman Van der Auweraer, and Patrick Guillaume. "Modal Survey Testing and Vibration Qualification Testing: The Integrated Approach." Journal of the IEST 46, no. 1 (2003): 110–18. http://dx.doi.org/10.17764/jiet.46.1.y542012501w0701q.

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In the assessment of the structural integrity and launch-environment survivability of satellite structures, dynamic mathematical models are used for load prediction. These analytical models are test-verified by a modal survey test. Once the vibration environment is specified, the satellite equipment is subjected to shaker excitation in order to reproduce this environment. This paper investigates the possibilities to integrate both the modal survey and the vibration qualification test.

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20

Vigneswaran, S., and Jing Song Chang. "Experimental testing of mathematical models describing the entire cycle of filtration." Water Research 23, no. 11 (1989): 1413–21. http://dx.doi.org/10.1016/0043-1354(89)90081-x.

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21

Tennant, Marc, and Estie Kruger. "A Mathematical Simulation Approach to Testing Innovative Models of Dental Education." Journal of Dental Education 74, no. 3 (2010): 261–67. http://dx.doi.org/10.1002/j.0022-0337.2010.74.3.tb04871.x.

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22

Teguh, Mochamad, Furqon Widi Rivai, Novi Rahmyanti, and Erik Wahyu Pradana. "Experimental investigation on interlocking concrete block for masonry wall of non-engineered earthquake resistant buildings." E3S Web of Conferences 156 (2020): 05016. http://dx.doi.org/10.1051/e3sconf/202015605016.

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Most of the seismic damage of existing traditional buildings is due to the absence of practical beam and column structures as the main reinforcement of the building. While a masonry wall as a structural component is commonly negligible due to their relatively low strength in contributing to the frame structure. As a result, when the earthquake struck, the building collapsed, and the ruins of building elements hit the occupants seriously and caused many deaths. This paper presents the results of preliminary research on the experimental investigation of interlocking concrete block for the masonr

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23

Susila, Gede Adi, Parthasarati Mandal, and Thomas Swailes. "Strengthening and Retrofitting Strategy for Masonry (New Build Construction in Indonesia)." Applied Mechanics and Materials 845 (July 2016): 181–87. http://dx.doi.org/10.4028/www.scientific.net/amm.845.181.

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In Indonesia, number of non-engineered structures have significantly been found which the houses were built by unskilled workers using masonry either unconfined or confined. The non-engineered housing units developed in urban region are also vulnerable to seismic hazard due to the use of low quality of material and constructions method. Those structures are not resistant to extreme lateral loads and their failure during an earthquake can lead to significant loss of life. This paper is concerned with the structural performance of Indonesian low-rise buildings made of masonry under lateral seism

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24

Repko, Alexandr, Milan Sága, Boris Sentyakov, and Vladislav Sviatskii. "Development and Testing of a Block Hydrocyclone." Processes 8, no. 12 (2020): 1577. http://dx.doi.org/10.3390/pr8121577.

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The study aimed to theoretically substantiate the efficiency of liquid purification and obtain corroborating experimental data for a hydrocyclone, consisting of several blocks. Mathematical models of the process of hydrodynamic fluid filtration were developed with the use of screw swirlers. The obtained mathematical models characterize all the main processes of fluid movement in various zones of the functioning of the hydrocyclone. Formulas for calculating the structures of hydrocyclone blocks are included. A block for swirling the flow of the liquid to be cleaned has been made in the form of

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25

Khan, Irfan, Akhtar Gul, Khan Shahzada, et al. "Computational Seismic Analysis of Dry-Stack Block Masonry Wall." Civil Engineering Journal 7, no. 3 (2021): 488–501. http://dx.doi.org/10.28991/cej-2021-03091668.

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In this research the computational modeling of Dry-Stack Block Masonry (DSM) walls subjected to cyclic monotonic loading testing is done. The analytical results were compared with experimental test results of the unreinforced and unconfined DSM cantilever walls subjected to lateral loading along with a constant axial load. ABAQUS has been used for Finite Element Modeling and analysis of the wall. Various material properties are defined for the wall in the software and modeled as a homogeneous material. The proposed numerical models had a good correlation with the experimental data. The test re

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26

Abrams, Daniel. "Effects of Scale and Loading Rate with Tests of Concrete and Masonry Structures." Earthquake Spectra 12, no. 1 (1996): 13–28. http://dx.doi.org/10.1193/1.1585866.

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Static and dynamic response of large-scale and reduced-scale test structures are correlated to discern effects attributable to scale and loading rate. Three case studies are presented where reduced-scale models were subjected to dynamic excitation using a shaking table. The test structures were: (a) multi-story reinforced masonry building systems, (b) two-story unreinforced masonry bearing and shear wall systems, and (c) ten-story reinforced concrete frame-wall systems. For each study, static testing of either critical components, or of the complete structural system, was done at a large scale

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27

Chowdhury, M. R., and F. Y. Testik. "Laboratory testing of mathematical models for high-concentration fluid mud turbidity currents." Ocean Engineering 38, no. 1 (2011): 256–70. http://dx.doi.org/10.1016/j.oceaneng.2010.10.020.

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28

Sassun, Kathy, Timothy J. Sullivan, Paolo Morandi, and Donatello Cardone. "Characterising the in-plane seismic performance of infill masonry." Bulletin of the New Zealand Society for Earthquake Engineering 49, no. 1 (2016): 98–115. http://dx.doi.org/10.5459/bnzsee.49.1.98-115.

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Masonry infills, commonly found in frame buildings throughout Europe and other parts of the world, have performed poorly in past earthquakes, with infill damage endangering lives, causing disruption and significant monetary losses. To characterize the performance of masonry infills, commonly classified as non-structural elements, an extensive set of experimental test data is collected and examined in this work in order to develop fragility functions for the in plane performance of masonry infills. The collected data stems from testing conducted in Europe, the Middle East and the United States

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29

Sturniolo, Simone, William Waites, Tim Colbourn, David Manheim, and Jasmina Panovska-Griffiths. "Testing, tracing and isolation in compartmental models." PLOS Computational Biology 17, no. 3 (2021): e1008633. http://dx.doi.org/10.1371/journal.pcbi.1008633.

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Existing compartmental mathematical modelling methods for epidemics, such as SEIR models, cannot accurately represent effects of contact tracing. This makes them inappropriate for evaluating testing and contact tracing strategies to contain an outbreak. An alternative used in practice is the application of agent- or individual-based models (ABM). However ABMs are complex, less well-understood and much more computationally expensive. This paper presents a new method for accurately including the effects of Testing, contact-Tracing and Isolation (TTI) strategies in standard compartmental models.

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30

Kozielova, Marie. "Measurement and Numerical Simulation of Deformation of Pre-Stressed Masonry." Applied Mechanics and Materials 749 (April 2015): 398–405. http://dx.doi.org/10.4028/www.scientific.net/amm.749.398.

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Contribution deals with laboratory measurements of deformations in the place exposed to local load caused by additional pre-stressing and its comparison with numerical simulation. The measurements are made at the masonry brick corner built in the laboratory equipment. The laboratory equipment was designed at Faculty of Civil Engineering VŠB – TU Ostrava for measurement tri-axial stress-strain conditions in masonry. The masonry structure of the brick corner is imposed on the vertical load and pre-stress is applied through two bars. The values of deformation from pre-stressing are sensed by pot

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31

Chavez, Cano M., and R. Meli. "Numerical Simulation of the Seismic Response of a Mexican Colonial Model Temple Tested in a Shaking Table." Advanced Materials Research 133-134 (October 2010): 683–88. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.683.

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With the main objective of providing basic information for calibration of analytical models and procedures for determining seismic response of historic stone masonry buildings, a shaking table testing program was undertaken at the Institute of Engineering of UNAM. A typical colonial temple was chosen as a prototype. The model was built at a 1:8 geometric scale. Increasing levels of seismic intensities were applied to the table. Main features of the measured response are compared in this paper to those computed though a nonlinear, finite element model; for the latter, a constitutive law corresp

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32

Olszak, Artur, Karol Osowski, Zbigniew Kęsy, and Andrzej Kęsy. "Modelling and testing of a hydrodynamic clutch filled with electrorheological fluid in varying degree." Journal of Intelligent Material Systems and Structures 30, no. 4 (2019): 649–60. http://dx.doi.org/10.1177/1045389x18818780.

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The article concerns steady-state characteristics of a hydrodynamic clutch with electrorheological working fluid controlled by changes in strength of electric field and changes in the filling degree. The characteristics were obtained by experimenting, as well as calculations based on one-dimensional mathematical models. While creating the mathematical models, factors taken into consideration included differences between methods controlling the clutch, as well as various ways the working fluid flows in the clutch’s working space, depending on the relation of angular speed of rotors. The resulta

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33

Vikulov, A. G. "Mathematical simulation of heat transfer in spacecraft." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 2 (June 30, 2017): 61–78. http://dx.doi.org/10.38013/2542-0542-2017-2-61-78.

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We implemented a systemic scientific approach to thermal vacuum development of spacecraft, which integrates the problems of thermal calculations, thermal vacuum tests and accuracy evaluation for mathematical models of heat transfer by means of solving identification problems. As a result, the following factors increase the efficiency of spacecraft ground testing: reducing the duration of thermal vacuum tests, making autonomous thermal vacuum testing of components possible, increasing the accuracy of thermal calculations

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34

Kasa, Anuar, Zamri Chik, and Taha Mohd Raihan. "Prediction of External Stability for Geogrid-Reinforced Segmental Walls." Key Engineering Materials 462-463 (January 2011): 1319–24. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.1319.

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Prediction of external stability for segmental retaining walls reinforced with geogrid and backfilled with residual soil was carried out using statistical methods and artificial neural networks (ANN). Prediction was based on data obtained from 234 segmental retaining wall designs using procedures developed by the National Concrete Masonry Association (NCMA). The study showed that prediction made using ANN was generally more accurate to the target compared with statistical methods using mathematical models of linear, pure quadratic, full quadratic and interactions.

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Kasa, Anuar, Zamri Chik, and Taha Mohd Raihan. "Prediction of Internal Stability for Geogrid-Reinforced Segmental Walls." Advanced Materials Research 163-167 (December 2010): 1854–57. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1854.

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Prediction of internal stability for segmental retaining walls reinforced with geogrid and backfilled with residual soil was carried out using statistical methods and artificial neural networks (ANN). Prediction was based on data obtained from 234 segmental retaining wall designs using procedures developed by the National Concrete Masonry Association (NCMA). The study showed that prediction made using ANN was generally more accurate to the target compared with statistical methods using mathematical models of linear, pure quadratic, full quadratic and interactions.

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Lima, Enzo Lenine. "Models, explanation, and the pitfalls of empirical testing." Estudos Internacionais: revista de relações internacionais da PUC Minas 6, no. 3 (2018): 82–97. http://dx.doi.org/10.5752/p.2317-773x.2018v6n3p82.

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Formal models constitute an essential part of contemporary political science and International Relations. Their recent history is tightly tied to the developments of Rational Choice Theory, which is considered to be the only deductive theory in the social sciences. This unique character, especially its manifestation through mathematical symbolisms, has caused profound schisms and criticisms in the discipline. Formal models have constantly been accused of being built on unrealistic assumptions of human behaviour and social structure, rendering as a result either trivial predictions or no empiri

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37

Sherstyuk and Musayev. "Data Warehouses Application in the Automated Testing and Verification System for Mathematical Models." SPIIRAS Proceedings, no. 4 (March 17, 2014): 163. http://dx.doi.org/10.15622/sp.4.11.

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38

Fişek, M. Hamit, and Zeynep Barlas. "Permutation tests for goodness-of-fit testing of mathematical models to experimental data." Social Science Research 42, no. 2 (2013): 482–95. http://dx.doi.org/10.1016/j.ssresearch.2012.09.010.

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39

Megehee, M. Maria, Ann N. Clarke, Kenton H. Oma, and David J. Wilson. "Soil Clean-Up by Surfactant Washing. IV. Modification and Testing of Mathematical Models." Separation Science and Technology 28, no. 17-18 (1993): 2507–27. http://dx.doi.org/10.1080/01496399308017494.

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40

Nyman, Melvin A., Murray T. Brown, Michael Neushul, and Jonathan A. Keogh. "Macrocystis pyrifera in New Zealand: testing two mathematical models for whole plant growth." Journal of Applied Phycology 2, no. 3 (1990): 249–57. http://dx.doi.org/10.1007/bf02179782.

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41

Banerjee, Susanta, Sanket Nayak, and Sreekanta Das. "Augmenting the seismic performance of masonry models using polypropylene band and steel wire mesh through shaking table testing." Structures 26 (August 2020): 340–47. http://dx.doi.org/10.1016/j.istruc.2020.04.027.

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42

Vasić, Miloš, and Zagorka Radojević. "Drying Process Modelling for Heavy Clay Products Using a New Thin Layer Drying Model." Applied Mechanics and Materials 371 (August 2013): 323–27. http://dx.doi.org/10.4028/www.scientific.net/amm.371.323.

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Drying results, determined on samples made of masonry clay from the locality "Banatski Karlovac", are presented in this study. Experimental investigations were carried out in a laboratory recirculation dryer in which drying parameters (humidity, temperature, and velocity) could be programmed, controlled and monitored during drying process. Several mathematical models were used for drying process modelling. New semi-theoretical thin layer drying model, for heavy clay products, was developed and presented in this study. It represents a modification of Page's and logarithm's thin layer drying mod

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Wu, L. M., Nan Hui Lai, and G. T. Wang. "Measurement and Simulation of Automotive Eddy Current Retarder Based on Virtual Reality." Key Engineering Materials 392-394 (October 2008): 93–97. http://dx.doi.org/10.4028/www.scientific.net/kem.392-394.93.

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Structure and working principles of eddy current retarder (ECR) are discussed, as well as performance requirements of real-time virtual testing and simulation. On the basis of hardware testing platform, virtual models of vehicle and retarder are embedded into application program. In the testing system, Vega API function library is used for second development to control the 3D models, and Visual C++ is used for mathematical models call from MATLAB to simulate the working condition. Integrated with virtual instrument and virtual environment, the limitation of former simulation is broken through.

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Seible, Frieder, Gilbert Hegemier, and Akira Igarashi. "Simulated Seismic Laboratory Load Testing of Full-Scale Buildings." Earthquake Spectra 12, no. 1 (1996): 57–86. http://dx.doi.org/10.1193/1.1585868.

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Full-scale building systems have been tested to-date in Japan, the United States, and Europe under controlled laboratory conditions with simulated seismic loads, to determine behavior and design limit states and to calibrate predictive analytical and design models. Seismic load simulation for these tests consisted of increasing cyclic load/deformation patterns with predetermined load distribution or, where possible, of loading patterns derived experimentally from the measured building response in conjunction with updated displacement time-histories through pseudo-dynamic testing. Difficulties

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Łapka, Piotr, Michał Wasik, Piotr Furmański, et al. "Preliminary mathematical and numerical transient models of convective heating and drying of a brick." MATEC Web of Conferences 240 (2018): 01022. http://dx.doi.org/10.1051/matecconf/201824001022.

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The paper presents the initial approach to mathematical and numerical modelling and optimization of heat and mass transfer in elements of the masonry wall. The considered single moist brick is placed in the channel through which the dry air is flowing. Only one wall of the brick is in contact with the flowing air and through this boundary heat and moisture are exchanged. The non-equilibrium mathematical model is formulated for general case with three phases of moisture present in the porous building material, i.e., water vapour in the moist air filling the pores, liquid water (bound water) ads

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Lee, M. Howard. "Testing Boltzmann's ergodic hypothesis with electron gas models." Journal of Physics A: Mathematical and General 39, no. 17 (2006): 4651–58. http://dx.doi.org/10.1088/0305-4470/39/17/s52.

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Junevičius, Raimundas, and Marijonas Bogdevičius. "MATHEMATICAL MODELLING OF NETWORK TRAFFIC FLOW." TRANSPORT 24, no. 4 (2009): 333–38. http://dx.doi.org/10.3846/1648-4142.2009.24.333-338.

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The article describes mathematical models of traffic flows to initiate different traffic flow processes. Separate elements of traffic flow models are made in a way to be connected together to get a single complex model. A model of straight road with different boundary conditions is presented as a separate part of the network traffic flow model. First testing is conducted in case the final point of the whole modelled traffic line is closed and no output from that point is possible. The second test is performed when a constant value of traffic flow speed and traffic flow rate is entered. Mathema

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Islami, Kleidi, Giovanni Tecchio, and Claudio Modena. "Seismic Intervention and Dynamic Testing of an Arch Bridge." Applied Mechanics and Materials 105-107 (September 2011): 1159–64. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1159.

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This work presents the dynamic tests on a retrofitted masonry arch bridge. The Gresal Bridge, located in the North-East of Italy, was highly exposed to seismic hazard, due to the slenderness of its high piers. A retrofit intervention has been carried out, and a new rc slab has been built under the pavement, anchored to the piers with high strength vertical ties and restrained at the abutments, to create a new resistance arrangement withstanding inertial forces. The dynamic behaviour has been initially assessed with numerical models comparing the response of the bridge before and after the repa

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Castro, Mario, and Rob J. de Boer. "Testing structural identifiability by a simple scaling method." PLOS Computational Biology 16, no. 11 (2020): e1008248. http://dx.doi.org/10.1371/journal.pcbi.1008248.

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Successful mathematical modeling of biological processes relies on the expertise of the modeler to capture the essential mechanisms in the process at hand and on the ability to extract useful information from empirical data. A model is said to be structurally unidentifiable, if different quantitative sets of parameters provide the same observable outcome. This is typical (but not exclusive) of partially observed problems in which only a few variables can be experimentally measured. Most of the available methods to test the structural identifiability of a model are either too complex mathematic

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Andjelkovic, Vladimir, Zarko Lazarevic, and Velimir Nedovic. "Application of analogous models in civil engineering." Facta universitatis - series: Architecture and Civil Engineering 9, no. 3 (2011): 395–405. http://dx.doi.org/10.2298/fuace1103395a.

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The paper describes the results of making the mathematical and physical models of the authors, by using analogous methods and materials. There is the mathematical rock mass deformability model as a base for foundation engineering a concrete arch dam and the physical rock slope model which was tested by loading until failure and the results were compared with the calculation procedure. In the first example the correlation is established between the static and the analogous dynamic in situ investigations for creating the mathematical rock mass deformability model. In the second example there is

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