The model of communication

In this study, we propose a NOMA communication model combined with linear array antennas for the purpose of enhancing physical layer security. We introduce a model of 4 nodes: transmitter node S, receiver node D1, receiver node D2, eavesdropping node E.

10p viling 11-10-2024 0 0   Download

This study presents the application of six single algorithm-based models of artificial intelligence, such as artificial neural network (ANN), support vector machine (SVM), classification and regression trees (CART), linear regression (LR), general linear model (GENLIN), and automatic Chisquared interaction detection (CHAID) to predict the residual flexural capacity of corroded RC structures.

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Artificial neural network (ANN), a powerful technique, has been used widely over the last decades in many scientific fields including engineering problems. However, the backpropagation algorithm in ANN is based on a gradient descent approach.

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this paper focuses on the adhesion failure between the asphalt wearing course and the steel plate, and the temperature influence on the mechanical behavior of the orthotropic deck. Orthotropic steel bridge decks (OSBDs) have been widely used in long span bridges with many advantages, however, the long-term performance of the asphalt wearing course is still questionable.

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This presentation will introduce the smart urban formation process with ideas and operational models. At the same time, we will introduce a smart city rating system based on the role of urban government and the community; thus, we will find the existing and building of the development orientation. Finally, we will present a case study to applying smart city model in Hanoi capital, Vietnam in the trend of sustainable development in the future.

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In this paper, we investigated the factors influencing the adoption of electric motorcycles in two major cities, Ho Chi Minh City and Da Nang. A paper-based questionnaire was proposed. Through data analysis based on established measurement standards, we identified positive and negative factors affecting the use of electric motorcycles.

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The article is divided into five parts: 1) Introduction and overview of the research issue; 2) Literature review; 3) Methodology and data collection; 4) The main results, including the mode choice model and the impact of improving the quality of public transport, parking fees, and Park and Ride on public transport share; 5) Conclusion and recommendations.

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This study presents numerical results regarding subsonic flow characteristics over axisymmetric boattail models equipped with longitudinal grooves, with the number of grooves ranging from 2 to 12.

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In this study, a numerical model was developed to simulate the mechanical behavior of an orthotropic steel bridge deck (OSBD) strengthened with UHPC under localized loads based on the five-point bending beam test configuration.

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This study seeks to develop a prediction model to estimate the bond strength of FRP bars in concrete, utilizing an extended dataset from 1010 pull-out tests. Initially, the study evaluates the applicability of several bond strength formulas from existing codes.

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This article introduces a KBF designed for a simplified spatial vehicle model that uses only the vertical, roll, and pitch velocity of the sprung mass as measured outputs to estimate the sprung mass and roll and pitch moment of inertia of a two-axle truck.

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This article provided the enhanced genetic algorithm operators and suggested model formulation that could be applied in other research on traffic signal optimization directly to reduce calculation times and increase the efficiency of the novel suggested models.

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In this study, the author chooses the priority level in the following order: avoiding obstacles, moving to the goal and finally maintaining the swarm. With an assumption that the obstacles are fixed and known in advance.

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Internal combustion engines (ICEs), especially diesel engines, continue to play a huge role in the development of the global economy. The research trends to improve combustion is still the main research direction in recent years with the help of 3D simulation tools. In this study, a 3D-model of a four-stroke, single-cylinder diesel engine was built using AVL Fire software to evaluate the influence of injector geometry parameters on engine characteristics.

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A finite element model using a multi-fiber approach is proposed in this paper for the analysis of reinforced concrete (RC) members using fiber-reinforced polymer (FRP) reinforcements, with a specific focus on the effect of pure torsion. The main objective of this study is to develop a numerical finite element model to predict the behavior of RC beams with FRP reinforcement under pure torsional effects.

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This study involves the application of MIKE-FLOOD to the Duc My Bridge within the Dinh River floodplain. The objective is to implement inundation assessment methodology and present a reliability analysis framework to investigate flood vulnerability through a real-world bridge case study."

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Recently, the phase field modelling is widely used to model and simulate material damage. In present work, we present a framework of the topology optimization combined with the phase-field modelling with/ without interfacial damage for optimizing the damage resistance of the inclusion-matrix composites.

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The prediction of ground settlement under tunnel excavation is still challenge. Almost engineer uses Mohr-Coulomb model in practice due to the conventional geotechnical investigation data. This paper describes the study of tunnel lining behaviors and ground surface settlement under tunneling process with a typical case study of twin tunnels excavation in Ho Chi Minh city, Vietnam.

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The phase-field method has become a robust tool to describe the complex crack nucleation and propagation in heterogeneous materials. In these materials, an interaction between bulk brittle damage and interfacial damage through the splitting the strain tensor into a bulk strain part and a jump strain part at the interfaces.

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Model for energy and exergy analysis of absorption refrigeration using waste heat from textile factory has been built. The analysis that uses different models of heat exchangers are the overall heat conductance (UA) model, and the effectiveness model. The result show that the exergy loss in the generator and absorber are the larger than condenser and evaporator.

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