2nd International Conference on Numerical Modelling in Engineering (NME 2019)
 | Dr. Ilhame Amirali, Associate Professor, Mathematics Department, Düzce University, Turkiye Dr. Ilhame Amirali was born in 19th November 1972 in Baku, Azerbaijan. After graduating from high school with high degree in Baku she started her university education at the Baku State University Department of Mathematics. More... | |
| Speech Title: Numerical Methods for the Singularly Perturbed Problems Containing Integral Boundary Condition Abstract: Singularly perturbed differential equations are typically characterized by a small parameter ε multiplying some or all of the highest order terms in the differential equation as normally boundary layers occur in their solutions. These equations play an important role in today’s advanced scientific computations. Many mathematical models starting from fluid dynamics to the problems in mathematical biology are modelled by singularly perturbed problems. More... | ||
 | Dr. Irshad Qureshi, Assistant Professor, Department of Civil Engineering, University of Engineering and Technology, Pakistan Dr. Irshad Qureshi is Assistant Professor at Civil Engineering Department of University of Engineering and Technology, Taxila. He obtained his Master and Doctor of Engineering Degree from the Asian Institute of Technology, Thailand. More... | |
| Speech Title: Numerical Modeling of Rocking Wall Structures including the Impact-Induced Effects Abstract: Recent earthquakes in various parts of the world have shown that life-safety performance of structures alone is not enough as the structures exhibited intense damage requiring a costly retrofitting or in some cases demolishing and rebuilding of structures. Therefore, focus is increasing on the use of resilient lateral force resisting system capable of not only surviving the earthquakes but also keeping the damage to a minimum level. Precast post-tensioned rocking wall system is such a solution and for it to be presented as a viable alternative to conventional shear wall structural system, reliable numerical models, capable of predicting their behavior both in static and dynamic domains, are required. More... | ||
 | Dr. Junfeng Zhang, Full Professor, Bharti School of Engineering, Laurentian University, Canada Dr. Zhang obtained his Ph.D. degree in Mechanical Engineering from University of Alberta, Canada in 2005. He then worked in the Department of Biomedical Engineering at Johns Hopkins School of Medicine, USA for two years as a NSERC postdoctoral fellow. Dr. Zhang joined the Laurentian Engineering School in 2007 as an assistant professor, and has been promoted to full professor in 2016. More... | |
| Speech Title: Computational Microscopic Blood Flows: Model Development and Applications Abstract: Continuously circulating through the body, blood performs many crucial biological functions, including the supply of oxygen and nutrients to, removal of metabolic waste from tissues, circulation of white blood cells, antibodies and platelets for immunization and self-repair, and regulation of body pH and temperature. More... | ||
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Dr. Ali M. Akhmedov, Professor, Baku State University, the Republic of Azerbaijan From 1966 till now, Dr. Ali M. Akhmedov works at the Baku State University, mech-math faculty. In 1995, he became the head of the department of "Theory of functions and functional analysis". In 1978-1979 years, he worked on probation at the University of Wisconsin (in Madison), USA and was electorates as a honour fellow of Mathematics of this University. More... |
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Speech Title: On a Class of Iterative Processes and its Applications Abstract: In this paper, we study the behavior of the sequence {an} of complex numbers satisfying the relation an+k = q1an + q2an+1 + ... + qkan+k−1, where {qm} is a fixed sequence of complex numbers. Such kind of sequences arise in problems of analysis, fixed point theory, dynamical systems, theory of chaos, etc. For example, investigating the spectra of triple and more than triple band triangle operator matrices, the behavior of such sequence required. More... |
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Dr. Maarten Vanierschot, Assistant Professor, Mechanical Engineering Technology Cluster TC, campus Group T, KU Leuven, Belgium Maarten Vanierschot is an assistant professor at the Mechanical Engineering Technology Cluster TC, campus Group T of KU Leuven. He received a Master’s degree in Electromechanical Engineering from KU Leuven, Belgium in 2002. From 2003 on, he conducted research as a PhD-student at the Division of Applied Mechanics and Energy-conversion on swirling jets and received a PhD in Electromechanical Engineering in 2007. More... |
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Speech Title: Coherent Structure Detection in Swirling Jet Combustors Using Unsteady RANS Simulations Abstract: This paper analyses the capabilities of unsteady Reynolds Averaged Navier Stokes simulations (URANS) to predict the coherent structures found in a swirling jet undergoing vortex breakdown. Recently, tomographic particle image velocimetry experiments of an annular swirling jet at a Reynolds number of 8500 at moderate swirl showed the presence of a double helical structure in the flow field (Vanierschot et al., Physical Review Fluids, 2018). More... |
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Dr. Luis Ribeiro e Sousa, Professor, SKL-GDUE of China University of Mining and Technology, Beijing and Tongji University, Shanghai, China Prof. Sousa has more than 45 years of engineering experience. He has international experience on projects including dams, tunnels, and other underground structures. His technical areas of expertise include concrete dams; rock foundations and other structures; tunneling for subways, roads, railways and hydraulic projects; underground storage; mining; petroleum engineering; rock mechanics; tests; and numerical modeling. More... |
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Speech Title: Advancements in SHTB Tests for Constant Resistant Large Deformation Bolts and the Use of Numerical Simulations Abstract: In deep underground excavations, rockbursts occur in a violent manner. A comprehensive understanding of the mechanisms of the rockburst have so far left unsolved. There are several types of accidents that included rockburst. Bolts and anchors are efficient measures to control these accidents and large deformations that can occur. More... |
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Dr. Nadir Maghlaoui, Associate Professor, Higher School of Applied Sciences, Algiers, University of Sciences and Technology Houari Boumediene, Algiers, Algeria Dr. Nadir MAGHLAOUI is an Associate Professor at Higher School of Applied Sciences, Algiers, University of Sciences and Technology Houari Boumediene, Algiers, Algeria. He obtained his Doctorat in Physics at University of Sciences and Technology Houari Boumediene, Algiers, Algeria and at University of Valenciennes, France. His doctoral research work was focused on the Ultrasonic Non Destructive Testing and the Acoustic Microscopy modeling. Currently he conducted a scientific stay at the Institute of Electronic Microelectronic and Nanotechnology of Valenciennes in France. |
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Speech Title: Numerical Study of the Reflection at a Liquid Solid Interface of a Transient Ultrasonic Field Radiated by a Linear Phased Array Transducer Abstract: We have used a model for the study of the transient ultrasonic waves radiated by a linear phased array transducer in a liquid then reflected at a liquid solid interface. This model is based on the Rayleigh integral where the reflection at the plane interface is taken into account by using the reflection coefficients for harmonic plane waves. The transient field is obtained by an inverse Fourier transform of the harmonic results. More... |
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Dr. Chen BingJin, Scientist, Institute of High Performance Computing, Agency for Science, Technology and Research, Singapore Dr. Chen BingJin received his B.Eng in Engineering Mechanics and M. Eng in Solid Mechanics from Shanghai Jiaotong University, Shanghai China. He got his PhD from School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore. His research interests include computational solid mechanics, fracture mechanics, structural mechanics, micromechanics, spintronic materials and devices. |
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Speech Title: Physics-based MRAM Model Considering both MTJ and NMOS Transistor Process Variations Abstract: We use a quantum tunneling model for computing MTJ two-state resistances as a function of MgO barrier thickness and MTJ geometry size, as well as the voltage across it. Both the barrier imperfection and the interface condition between MgO and magnetic electrodes are taken into account. The barrier imperfection reduces the band gap of MgO, thus affects both TMR and RA values, while the interface condition leads to interface scattering which reduces TMR. The quantum tunneling model can be calibrated with the experimental data and used to generate the I-V curves for MTJ. The I-V curve of the transistor is extracted from the BSIM model. The driving current of the NMOS transistor is expressed as a function of NMOS channel length, channel width and the threshold voltage. The threshold switching currents of the MTJ at different pulse widths are simulated by a LLG solver which is solved numerically. |
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Dr. Muyideen Abdulkareem, Research Fellow, Construction Research Centre, School Civil Engineering of Universiti Teknologi Malaysia, Malaysia Dr. Muyideen Abdulkareem is a Research Fellow at Construction Research Centre in the School Civil Engineering of Universiti Teknologi Malaysia, Johor, Malaysia. He obtained his Master and Doctor of Engineering Degree from the Universiti Teknologi Malaysia, Malaysia in 2010 and 2018 respectively. His doctoral research work was focused on vibration-based damage detect in plate and shell structures using wavelet transform. More... |
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Speech Title: Non-probabilistic Wavelet Method to Consider Uncertainties in Structural Damage Detection Abstract: In vibration-based damage detection studies, researchers have shown that wavelet transform (WT) is an effective tool for detecting damage. However, structural damage detection is hindered by uncertainties in structural models and measurement data. Various attempts have been made to address this problem by incorporating a probabilistic WT method. The success enjoyed by the probabilistic method is limited by lack of adequate information to obtain an unbiased probabilistic distribution of uncertainties. More... |
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Dr. Jie Ji, Professor, State Key Laboratory of Fire Science, University of Science and Technology of China (USTC), China Dr. Jie Ji is one Full Professor at the State Key Laboratory of Fire Science, University of Science and Technology of China (USTC). He obtained his Ph.D. degree in USTC in 2008 and was promoted to full professor in 2015. Currently he is the vice director of National & Local Joint Engineering Research Center of Thermal Safety Technology, More... |
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Speech Title: Real-Time Forecasting of Large-Scale Wildland Fire Spread Using FARSITE Tool and Ensemble Transform Kalman Filter (ETKF) Abstract: Ensemble transform Kalman filter (ETKF) is an extension of ensemble Kalman filter (EnKF), which avoids using “perturbed observations” to eliminate additional sampling errors. This paper demonstrates the capability of ETKF algorithm for sequentially correcting dynamically evolving fire perimeter positions at regular time intervals to enhance the prediction accuracy of wildfire spread. More... |
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Dr. Shibani Khanra Jha, Assistant professor, Department of Civil Engineering, Birla Institute of Technology and Science, Pilani, India Dr. Shibani Khanra Jha is Assistant Professor at Civil Engineering Department of Birla Institute of Technology and Science, Pilani, India. She earned her PhD and MSc (Engg) degree from Indian Institute of Science, Bangalore, India after her BE in Civil Engineering from Jadavpur University, India. She is lifetime member of Institute of Engineers, India. More... |
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Speech Title: Numerical Approach to Prioritize Renewable Energy Alternatives and Source Locations to Predict the Future Prospects Abstract: The exploitation of renewable energy sources is inevitable due to the ever increasing demand and adverse influence of nonrenewable energy sources. Currently, Wind, Solar, Hydro, Biomass, and Waste & Bagasse are exploited as conventional sources of renewable energies in many countries. Geothermal source is also an alternative in renewable category, however it is still nonconventional. More... |
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Dr. Dongliang Zhong, Professor, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University (CQU), China Dr. Dongliang Zhong is Full Professor at State Key Laboratory of Coal Mine Disaster Dynamics and Control (CMDDC), Chongqing University, China. He obtained his Ph.D. degree in University of Shanghai for Science and Technology in 2008. He completed his Post-doctoral research at University of British Columbia (UBC), Canada in 2012, and joined CMDDC in the same year. More... |
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Speech Title: Gas Hydrate Based Methane Recovery from Low-concentration Coalbed Methane Abstract: Coalbed methane (CBM) is a primary type of unconventional natural gas adsorbed in coal seams. The amount is estimated to be 260×1012 m3 around the world. The low-concentration coalbed methane (LCCBM) with CH4 content less than 30 mol% is difficult to utilize because of its low combustion efficiency. More... |
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Dr. Ryuta Kitamura, Department of mechanical engineering, Faculty of Engineering, Kanagawa University, Japan Dr. Kitamura received PhD (eng.) from Yamaguchi University of Japan in 2015.3. He worked as an assistant professor at Tokyo University of Science from 2015.4-2019.3. He has been working as an assistant professor at Kanagawa University from 2019.4. His specialties are composite materials, material mechanics and finite element method, etc. In particular, he is familiar with the preparation and mechanical characteristic measurement of ceramic matrix composites (CMC) and finite element analysis of the interfacial sliding problem of fiber reinforced composites, and he authored “Formulation of off-axial interfacial debonding and sliding problem by constrained conditional finite element method” etc. More... |
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Speech Title: Constraint conditional finite element method for off-axial interfacial sliding of fiber reinforced composite Abstract: In general, prevention of the fiber/matrix interfacial debonding is the key to strengthen polymer-based Fiber Reinforced Composites (FRC), whereas in Ceramics Matrix Composite (CMC), the fiber/matrix interfacial sliding is the main toughening mechanism. In the present study, the interfacial sliding problem was formulated by the Constraint Conditional Finite Element Method (CC-FEM). In this formulation, the equality of nodal displacements at the interface and the equilibrium of contact forces are assumed as constraint conditions, in which Coulomb's friction law is taken into account. More... |
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Dr. Liljana Ferbar Tratar, Full Professor, Department of Mathematics, Statistics and Operations Research, School of Economics and Business, University of Ljubljana (SEB LU), Slovenia Prof. Liljana Ferbar Tratar received her PhD in 1998 in the field of operations research at the School of Economics and Business, University of Ljubljana in Slovenia. In 1995 she received her master's degree at the SEB LU, Slovenia, and in 2001 at the Faculty of Mathematics, University of Zagreb, Croatia. She graduated in 1993 at the Faculty of Mathematics, University of Ljubljana, the profile of a graduate engineer of mathematics. More... |
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Speech Title: Forecasting Methods in Engineering Abstract: Forecasting in engineering is one of the most important topics when it comes to optimization, which is related to energy savings, material savings, increasing efficiency, appropriate and correct decisions at the level of a company, institution, city or region. Moreover, forecasting is indirectly related to cost savings and sustainable development of society and environment. In the energy industry (electricity, natural gas, heat load), there are requirements to balance the supply and demand. More... |
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Dr. Hector A. Tinoco, Experimental and Computational Mechanics Laboratory, Universidad Autónoma de Manizales, Antigua Estación del Ferrocarril, Edificio Fundadores, Manizales, Colombia Hector Andres Tinoco received his B.Sc. in Mechanical Engineering degree from the Universidad Autónoma de Manizales (UAM), Manizales-Caldas, Colombia, in 2005 and M.Sc. degree in Mechanical Engineering with specialization in Computational Mechanics from University of Campinas, Campinas, Brazil, in 2011. respectively. Since 2015, He has been working as an Associate Researcher in the Experimental and Computational Mechanics Laboratory (co-founder) at the UAM. More... |
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Speech Title: Piezo-actuated Device for a Bio-structural Monitoring Application Through Vibration-based Condition and Electromechanical Impedance Measurements Abstract: This study presents a numerical and experimental development of a piezo-actuated device used for monitoring elastic changes or stiffness variations of its support structure through electromechanical impedance measurements. The piezo-device and its components define a clamped beam system activated dynamically by a piezo-actuator that transmits vibrations to the support structure (monitoring substrate). The dynamics of the piezo-device was simulated by finite element analysis (harmonic and modal analysis) to understand the mechanical effects of the substrate and the simulations were corroborated with dynamics experimental tests. More... |
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Dr. Lijin Wang, School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, China Dr. Lijin Wang is currently an associate Professor at the School of Mathematical Sciences of University of Chinese Academy of Sciences. She received her Ph.D. in 2007 under joint education between the AMSS of the Chinese Academy of Sciences and the Karlsruhe Institute of Technology of Germany, and then she did postdoctoral research from 2007 to 2009 at the Tsinghua University of China. She has been working at the University of Chinese Academy of Sciences since 2009. Her research is mostly focused on numerical methods for stochastic differential equations, especially stochastic structure-preserving numerical methods for stochastic Hamiltonian systems, stochastic Poisson systems, etc.. |
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Speech Title: Structure-preserving numerical methods for stochastic Poisson systems Abstract: Poisson systems form a class of important mechanical systems whose long history dates back to the 19th century. As a generalization of the Hamiltonian systems which are defined on even-dimensional symplectic manifolds, the Poisson systems possess similar but extended structural properties, and can be defined on Poisson manifolds of arbitrary dimensions. They have a large scope of applications, such as in astronomy, robotics, fluid mechanics, electrodynamics, quantum mechanics, nonlinear waves, and so on. Numerical simulations of deterministic Poisson systems have been developed during the last decades. More... |
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Prof. Motohisa Hirano, Department of Mechanical Engineering, Faculty of Science and Engineering, Hosei University, Japan Dr. Motohisa Hirano is currently Professor at the Department of Mechanical Engineering, Faculty of Science and Engineering, Hosei University, Japan. He has studied the atomistics of friction and superlubricity: a state of vanishing friction. Following his graduation from the Graduate School of Engineering, Nagoya University, in 1982, he joined Nippon Telegraph and Telephone Public Corporation in the same year. More... |
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Speech Title: Non-Linear Dynamical Effects in Frictional Energy Dissipation Abstract: The non-linear dynamics in friction is studied from an atomistic point of view. The study of the Frenkel-Kontorova model with kinetic energy terms has found the two distinct different regimes appear in the parameter space specifying the model: the superlubricity and the friction regimes. More... |
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Dr. Ludovic Jason, SEMT, CEA DEN, Université Paris Saclay, F-91191 Gif sur Yvette, France From 2004 till now, Dr. Ludovic Jason is Research Engineer at the French Sustainable Energies and Atomic Energy Commission (CEA), Saclay, France. He obtained his Phd thesis at Ecole Centrale de Nantes (France) in 2004 and his Accreditation to Supervise Research (HDR – highest French diploma) in 2016. From 2012 to 2018, he was deputy director of the Institute of Mechanical Sciences and Industrial Applications (IMSIA – CNRS-EDF-CEA-ENSTA laboratory). He is co-author of papers in international journals regarding the simulation of the mechanical behavior of large dimension civil engineering structures like containment buildings of nuclear power plants. His work is focused on the development of modelling strategies for civil engineering applications, including reinforced concrete constitutive laws, steel-concrete bond models, thermo-hygro-mechanical simulations for tightness estimation and scale changing methods. |
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Speech Title: Simulation of the active confinement in a steel-concrete bond model for reinforced concrete structures Abstract: A numerical model to take into account the effect of the stress state on the bond behavior between steel and concrete in reinforced concrete structures is proposed. It is based on a zero thickness element, adapted to large-scale simulations and the use of 1D elements for steel bars. It supposes the definition of a bond stress – bond slip law which includes the confining pressure around the steel bar as a parameter. The implementation of the model is presented and the calibration of the bond law is discussed. More... |
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Dr. Ashish Bhatt, Department of Applied Mathematics, IIT (ISM) Dhanbad, Jharkhand, 826004, India Dr. Ashish Bhatt is an Assistant Professor at IIT (ISM) Dhanbad, India, in the department of Applied Mathematics. Before this, he was a postdoc at University of Stuttgart in Germany and he obtained his PhD from University of Central Florida in the USA. He has published several research papers in international scientific journals. His research interests include structure-preserving numerical methods, model order reduction, dynamical systems, and their interplay. To find out more about him, visit https://www.iitism.ac.in/~ashishbhatt/ |
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Speech Title: Exponential integrators preserving local conservation laws of PDEs with time-dependent damping/driving forces Abstract: Structure-preserving algorithms for solving conservative PDEs with added linear dissipation are generalized to systems with time dependent damping/driving terms. This study is motivated by several PDE models of physical phenomena, such as Korteweg–de Vries, Klein–Gordon, Schrödinger, and Camassa–Holm equations, all with damping/driving terms and time-dependent coefficients. More... |
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Dr. Jacob Bortman, full professor of Mechanical engineering, head of the Prognostic and Health Monitoring (PHM) research center, Ben Gurion University of the Negev, Israel Prof. Jacob Bortman studied for his D.Sc. in Washington University in St. Louis, MO, USA, Mechanical Engineering. Thesis title: "Nonlinear Models for Fastened Structural Connection Based on the p-Version of the Finite Element Method". He retired from the Israeli Air Force as Brigadier General after 30 years of service with the last position of the Head of Material Directorate. More... |
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Speech Title: A new model for spall-rolling-element interaction Abstract: Evaluation of the spall size of a radially loaded rolling-element bearing is required for the assessment of the bearing damage severity and estimation of its remaining useful life. A new multi-body, nonlinear dynamic model of the interaction between the rolling-element and a spalled outer race is presented. The study focuses on the physics of rolling-element contact in a broader range of spall sizes than has been investigated to date, with intermittent contact between rolling-element and the outer race, which is a relevant defect size for diagnostics and prognostics query. More... |
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Prof Dr. Tariq M. Nahhas, Professor of Structural Engineering, Civil engineering department, College of Engineering and Islamic Architecture, Umm AlQura University. Makkah, Saudi Arabia Professional Experience at Umm AlQura University: Professor of Civil Engineering( Structural Engineering) Chairman of The Review committee- Saudi Building Code: (2017-2018) More... |
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Speech Title: A comparison of IBC with 1997 UBC for modal response spectrum analysis in standard-occupancy buildings* Abstract: This paper presents a comparison of the seismic forces generated from the Modal Response Spectrum Analysis (MRSA) by applying the provisions of two building codes, 1997 Uniform Building Code (UBC) and 2000-2009 International Building Code (IBC) to most common ordinary residential buildings of standard-occupancy. Considering IBC as the state of the art benchmark code, the question that is targeted is about the safety of the buildings designed using UBC as compared to those designed using IBC. More... |
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Dr. Laila A. Alkhalfan, Assistant Professor, Department of Statistics & Operations Research, Faculty of Science, Kuwait University, Kuwait Dr. Laila A. Alkhalfan got her Ph.D from computational Science and Engineering department of McMaster University. She is now an Assistant Professor at the Statistics and Operations research department in the Faculty of Science Kuwait University. Her research interests are in survival analysis, mixture models, distribution theory and statistical predictions. |
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Speech Title: Maximum likelihood prediction of records from 3-parameter Weibull distribution and some approximations
Abstract: Based on record data, numerous authors have discussed the estimation of two-parameter Weibull distribution using classical and Bayesian approaches. In this paper, prediction of future records based on observed ones, using the maximum likelihood method, is considered. More... |
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Alberto T. Ramirez Garcia, Ph.D., P.E., Project Manager at Tatum-Smith Engineers, Rogers, AR, USA; Researcher at the Department of Civil Engineering, National University "Santiago Antúnez de Mayolo," Huaraz, Perú. Alberto T. Ramirez Garcia, Ph.D., P.E. is a Project Manager at Tatum-Smith Engineers, Rogers, AR, USA., and he is a researcher at the Department of Civil Engineering, National University “Santiago Antúnez de Mayolo,” Huaraz, Perú. More... |
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Speech Title: Effect of concrete compressive strength on transfer length
Abstract: This paper examines the effect of concrete compressive strength on the transfer length of prestressing strands. The paper includes the results from several research projects conducted at the University of Arkansas (UA) and from testing reported in the literature. At the UA, 57 prestressed, precast beams have been cast since 2005. The beams were cast with selfconsolidating concrete (SCC), high strength concrete (HSC), lightweight self-consolidating concrete (LWSCC), and ultra-high performance concrete (UHPC). More... |
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