Transport Engineering

Basalt rocks are a common geological formation that plays a crucial role in various engineering applications, such as construction, infrastructure development, and geotechnical engineering.

15p viengfa 28-10-2024 1 1   Download

Predicting the macroscopic permeability of porous media is critical in various scientific and engineering applications. This study proposes a novel model that combines Random Forest (RF) and rime-ice (RIME) optimization algorithm, denoted RIME-RF-RIME, to predict permeability based on six key features covering fluid phase dimensions, geometric characteristics, surrounding phase permeability, and media porosity.

14p viengfa 28-10-2024 1 1   Download

This article provides an overview of the mechanism and performance operating cycle of internal combustion engines using water-fuel emulsions and the efficiency, economy, and environmental friendliness of this fuel type for automobiles.

12p viengfa 28-10-2024 1 1   Download

This study underscores the critical importance of integrating engineering and geological assessments at various stages of dam construction. Re-evaluating and addressing evolving foundation conditions, particularly during construction, is essential for applying effective treatments to prevent dam failure during operation.

15p viengfa 28-10-2024 2 1   Download

This article presents a numerical investigation focusing on the temperature distribution of first-stage turbine rotor blades that do not feature internal cooling channels. The results indicate the regions of peak temperatures and evaluate rotor blade strength.

10p viengfa 28-10-2024 1 1   Download

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.

15p vibecca 01-10-2024 0 0   Download

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.

14p vibecca 01-10-2024 1 0   Download

In civil engineering, the study of embankment settlement on soft ground is a vital geotechnical task in order to maintain serviceability of the road embankment, pavement, and facilities. This paper presents a study on settlements of road embankment on soft ground using vertical drains, including prefabricated-vertical drain (PVD), sand drain (SD), and sand compaction pile (SCP) on a number of packages of Hanoi – Haiphong Expressway Construction Project.

12p vibecca 01-10-2024 0 0   Download

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.

11p vibecca 01-10-2024 0 0   Download

Acoustic properties of foams, such as macroscopic transports and sound absorption, are significantly influenced by their local morphology. The present paper develops a polynomial chaos expansion (PCE)-based surrogate model for characterizing the microstructure-properties relationships of acoustic monodisperse foams.

14p vifilm 24-09-2024 2 1   Download

The objective of this study was to explore a non-analytical but empirical and mathematical method for the determination of pore size and pore density of several polymeric tailor-made membranes. The proposed method used the fractional rejection concept of solute in membrane pores.

6p viyoko 24-09-2024 1 1   Download

Due to the policy of the Doi moi in Vietnam started in 1986, Hanoi has undergone many important changes. Currently, Hanoi’s traffic is characterized by seemingly continuous motorcycle flows - a representative of high personal mobility in the context of rising incomes. Congestion, dust, pollution, insecurity, overload, etc., they are important keywords to describe Hanoi’s urban traffic. Hanoi has put in place a number of policies to improve the transportation system.

11p viyoko 24-09-2024 4 1   Download

Truck crashes related to brake failure have been an increasing issue for traffic safety in Vietnam recently. Although previous studies have pointed out several variables directly related to this type of crash, there has been no research to further examine influencing factors resulting from other actors representing inside a road transport system and the interactions among them.

14p vifaye 20-09-2024 4 1   Download

This paper develops a three-stage framework to simplify the process of efficient deployment of ITS application services in a specific city. Three stages include identifying potential ITS services, evaluating and ranking the priority of ITS application services, and analyzing legal requirements as well identifying any gaps or areas where the current legal framework may fall short in accommodating ITS technologies.

15p vifaye 20-09-2024 3 1   Download

Daily personal exposure to black carbon (BC) in different microenvironments in Hanoi, Vietnam was quantified for the first time. In this study, a portable instrument, microAethe® model AE51, was used to continuously measure BC concentrations in various microenvironments within buildings and transportation modes.

9p viyoko 20-09-2024 2 1   Download

The Hanoi authority has been promoting the construction and completion of the Urban Mass Rapid Transit (UMRT) system, both BRT and urban railway. The idea of land value capture for economic development in areas around public transport systems is quite popular around the world. This is considered an effective approach to urban development planning in the big cities.

15p vifaye 20-09-2024 3 2   Download

When undertaking strategic planning to identify potential options for a detailed assessment, it is important to compare the total costs of existing mixed transport systems with the introduction of different new public transport (PT) modes. Hence, this study develops a social cost model for situation of mixed transport system which has a dominance of motorcycles where a new PT technology (e.g. Bus Rapid Transit - BRT, Monorail or elevated Metro) or an exclusive bus lane is being considered.

22p vifaye 20-09-2024 5 1   Download

The increasing use of Intelligent Transport System (ITS) can enable very close vehicle spacings which generally results in a net drag reduction for the resulting convoys. The majority of vehicle development has, to date, been for vehicles in isolation, thus the study of interaction effects is becoming increasingly important. The main objective of this research is to investigate the use of Computational Fluid Dynamics (CFD) for understanding convoy aerodynamics and to further the understanding of airflow interaction between vehicles via CFD.

154p runthenight07 01-03-2023 7 3   Download

This research concludes with a discussion on the potential effects on river water quality due to dry weather spills, the impact of rainfall intensity and their potential to mobilize the microbial contamination and move towards a stormwater drain and be transported to a nearby water course. Overall, the objectives of this study were achieved and the transport of microbes can be estimated at different elapsed times depending on the relative humidity after a dry weather spill event, providing its impact on waterways.

232p runthenight07 01-03-2023 5 3   Download

The goal of this thesis is to evaluate and compare the environmental impacts of alternative thermal treatments processing MRF residual waste in Victoria.

213p runthenight04 02-02-2023 10 2   Download