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1128 articles for “Modelling”
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Review of Silicon Reactivity of Self-assembled monolayer and its Properties
Abstract: In most cases, the assumption of perfect high viscosity between silicon and silver underlies the modelization of silicene on Ag(111). According to recent reports, growth does not take place on top of the Ag(111) terraces, but rather within the first layer of them. In this article, we present the results of a study that combines scanning tunnelling microscopy and density functional theory to simulate the nucleation process and reveal the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 29–33 Read article
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High-rate Deformation of Condensed Matter Followed by Self-Organization on the Mesoscale
Abstract: The purpose of the paper is to demonstrate the advantages of the developed self-consistent non-local approach to the description of processes in condensed matter far from local thermodynamic equilibrium and new opportunities for understanding and practical use of such phenomena as self-organization, multi-scale energy exchange and turbulence. This interdisciplinary approach, based on rigorous results obtained in non-equilibrium statistical mechanics with the use of feedback control laws, offers a universal mathematical …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 13–38 Read article
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Simulation of Heat Generated on Crude Oil Degradation upon the Effect of Temperature in Bacteria Growth Kinetics in a Bioreactor
Abstract: Model was established to simulate the heat generated by bacteria with the interaction of substrate (crude oil) degradation in a bioreactor upon the influence of temperature. The model was predicted by simulating the characteristics of bacteria interaction with substrate at temperature of 15oC, 30oC, 45oC, 60oC, 75oC, 90oC, 105oC and 120oC and heat generated is within the range of -1.0 to 7.1kcal/hr for bacteria in fresh water medium whereas for …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 39–54 Read article
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Using Pavement Automated Monitoring System in Prioritization of Maintenance Decisions
Abstract: The road transportation system greatly affects the development of economy and social activities for the country. However, pavement maintenance and rehabilitation may be extremely costly and require a lot of funds and resources. Therefore, it is essential to spend these funds in an optimal way. In recent years, the major challenge that have faced most of highway management agencies in Iraq is how to preserve the road network at an …
Published in International Journal of Construction Engineering and Planning · Vol. 1, Issue 1, 2015 · pp. 1–13 Read article
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Performance of Temperature on Compressive and Shear Strength of High Strength Fiber Reinforced Concrete
Abstract: ABSTRACT This paper presents the results of the experimental investigation of various strengths at elevated temperature of high strength fiber reinforced concrete (HSFRC). Variables considered in the research work are various strengths, temperature and fiber volume fractions. Various strengths considered for investigation are compressive strength, shear strength. Concrete mix of M60 grade and crimped steel fibers with aspect ratio 50 are used. The fiber volume fraction is varied from 1 …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 13–23 Read article
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Identifying and Assessing the Usefulness and Validity of 6D and 7D BIM in Construction Practices
Abstract: Building information modeling (BIM) is a unified practice using coordinated and coherent representation software proficiently running in various formats (from 3D to 7D) to perk up overall project management. BIM can be executed ahead of the planning and designing stage of project, covering the complete building life cycle, along with the procedures involved in facility management and sustainability. This paper critically reviews the application of 6D and 7D BIM in …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 22–31 Read article
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Bidding Strategy for Building Projects Based on Game Theory
Abstract: The owners of construction projects typically apply a competitive bid process to award a contract to the qualified bidder who submits the lowest price. For the contractors, it is very difficult to decide an optimal mark-up and bid value to win the contract and at the same time to secure sustaining profitability as high as possible. For that, from the various literatures related to the bidding problems, the factors are …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 1–11 Read article
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Optimization of Compressive Strength of Snail Shell Ash Blended Cement Concrete
Abstract: In this paper, a mathematical model is developed to optimize the compressive strength and the corresponding values of the mixture proportions of snail shell ash blended cement concrete using Scheffe’s regression method.A computer program written in qbasic language was invoked to quicken the selection of the cheapest mix ratios and the corresponding value of compressive strength of concrete. The mix ratio that optimized the compressive strength was found to be …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 2, 2020 · pp. 29–37 Read article
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Prediction of Compressive Strength of Concrete with Decision Trees
Abstract: In the past few researchers predicted the compressive strength of concrete from its ingredients employing data driven technique like artificial neural network (ANN) and Decision Tree (DT). For Indian concrete records, only one study was available which had employed ANN for prediction. Evaluation of different performance metrics indicated that there was scope of improvement in the prediction performance. In this paper experimental data from the literature was utilized for development …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 19–29 Read article
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Application of High-Speed Videography in Assessing the Performance of Blasts
Abstract: Abstract Blasting can be considered as the most crucial process in an opencast mine. It is therefore important for mining engineers to understand the effect of geological discontinuities and blast design parameters on the results of blasting. Bench height and burden are very important parameters affecting stiffness of bench. Joints alter the results of blasting, by making explosive energy utilization ineffective. Modern tools like high-speed videography reveal many aspects of …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 32–46 Read article
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Some Geomechanical and Petrophysical Linkages Within Paleo-Sedimentary Beds of Ghana
Abstract: Instability issues have been a major challenge in the Sekondian Series of South-Western Ghana. This is particularly affecting civil works and environmental mitigation efforts across the formation as extensive weathered profile impedes structural integrity. Uniaxial Compressive Strength (UCS) of lithological units which is a critical stability measure in most engineering projects requires quality sample of appropriate dimension for its determination. Samples for this important design parameter cannot be easily obtained …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 6, Issue 1, 2020 · pp. 31–42 Read article
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Predicting the Influence of Permeability’s on Settlement of Shallow Foundation
Abstract: Foundation settlement rose as soil permeability increased, excess pore pressure increased with depth, and decreased as shear modulus increased. The expanding soil cycle (shrinkage and expansion) that is principally responsible for foundation settlement is strongly related to water content. The application of modeling and simulation was used to monitor the effect of various soil properties on foundation settlement. But the focus of this study is on Permeability including other soil …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 9, Issue 1, 2023 · pp. 36–54 Read article
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Seismic Analysis of RC Elevated Water Tank Using Different Staging Pattern
Abstract: The present review explores the performance of a circular water tower by utilizing dynamic analysis (response spectrum technique). The investigation is carryout by considering different parameters like water storage capacity, height of water tower are taken as consistent and variation in, number of segments (Column’s), h/d ratio, staging arrangement such as normal staging, hexagonal staging, cross staging and radial staging with central column are consider here. By considering all this …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 15–36 Read article
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A Review Study on Comparative Seismic Analysis of Irregular Shaped Multi-storeyed Structure With and Without Infill
Abstract: In this study, we focused on the behavior of infill wall and plan irregularity on seismic performance of multi-storeyed high rise structure during various earthquake ground motions. A mostly L shaped structure; residential type structure with 15 storeys has been modelled with all its parameters. This structure includes four lifts/wells in its entire plan at mid-section and parking is provided at the base storey. A regular plan with the same …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 45–56 Read article
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Comparative statis analysis of Regular and irregular building
Abstract: ABSTRACT: In this paper is increased safety and evaluate the seismic performance of Irregular and Regular building. There are several numbers of factors affecting the behavior of building. In the this paper work a parametric study is performed on Irregular and Regular plan of building with infill wall 230 mm thick and internal wall 115 mm thick provide at G+15 storey with Regular and Irregular building in seismic zone IV …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 2, 2017 · pp. 29–34 Read article
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Influence of Ground Motion Duration on the Peak Drift Demands of Reinforced Concrete Buildings
Abstract: Previous studies regarding the effect of strong-motion duration on the behavior of reinforced concrete buildings indicate that the findings regarding the influence of strong-motion duration on peak damage indicators are not consistent. Most of the previous studies available are based on two dimensional structural models. The objective of the present study is to further investigate the influence of earthquake strong-motion duration on structural behavior with three-dimensional building models. In this …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 2, 2017 · pp. 35–44 Read article
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Design of Deep Beam Using Strut-and-Tie Method A Case Study of Pile Cap
Abstract: This study takes a look at modeling of deep beam using strut-and-tie method using pile cap as a case study. There are B and D region in the deep beam (B standing for beam or Bernoulli and D standing for discontinuity or disturbance). A deep beam has a span-depth, a/d ratio ranging from 2.0 to 2.5. Thereafter, the strut-and-tie modeling (STM) of pile cap was displayed. The STM was later …
Published in International Journal of Structural Engineering and Analysis · Vol. 4, Issue 1, 2018 · pp. 6–14 Read article
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Study on Torsional Behaviour of RC Flanged Beams Strengthened with Glass FRP
Abstract: Existing structures needs repair and rehabilitation due to Environmental deterioration, increased service loads, reduced capacity due to aging, deterioration owing to poor construction materials and workmanships and conditional need for seismic agitating. FRP has been used successfully in a large number of such uses for causes like low weight, high strength and durability. Many previous research works on torsional strengthening were focused on solid rectangular RC beams with different strip …
Published in International Journal of Structural Engineering and Analysis · Vol. 4, Issue 1, 2018 · pp. 15–21 Read article
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MODAL ANALYSIS OF CONVENTIONAL RCC STRUCTURE WITH STEEL BRACING
Abstract: It is a well-known fact that high rise reinforced structures are vulnerable to lateral loadings from things like earthquake and wind stresses. Bracing systems have the excellent benefit of adding just a tiny amount of bulk to the structure while significantly enhancing its performance. Building modelling is done both with and without a bracing system in this study. Analysis that is both linear and dynamic is being done. The structure …
Published in International Journal of Structural Engineering and Analysis · Vol. 9, Issue 1, 2023 · pp. 48–62 Read article
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Assessment of Pedestrian Walking Characteristics at Erbil CBD
Abstract: To enable and encourage walking, understanding of the characteristics of pedestrian movements is vital. The restrictions on vehicular movement, and scarcity of parking lots had changed the whole traffic movement to the unserviceable condition. Therefore, walking is considered as the most efficient mode of transportation at Erbil CBD area. In developing countries like Iraq, however, the recognition of the importance of pedestrian walking studies is still infancy; the published data …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 1, Issue 2, 2015 · pp. 1–10 Read article