The road is one of the most fundamental forms of social infrastructure and plays a critical role in boosting the local economy. However, the route has been used in many different loading types, affecting their performance. The increase in traffic in commercial vehicles is the main factor causing road damage. This problem involves us thinking about improving the pavement characteristic and quality by using polymer modification materials that satis

Pretreatment is an essential technique for enhancing the efficiency of extraction. Among many types of pretreatment processes, freezing and drying have been recognized as the thermophysical pretreatment techniques that can be applied to many solid samples before being subjected to extractions. However, the effectiveness of the pretreatment conditions highly dependent on the type of raw materials. Therefore, this study aimed to investigate the eff

Traffic congestion is one of the most serious problems facing by not only the developed countries, but also by developing countries, including Cambodia. Efforts have been made to minimize urban traffic congestion in order to improve the traffic flow. This paper intends to provide the best alternative solutions to improve traffic flow at a busy intersection in Phnom Penh, Cambodia—i.e., Neakvoan intersection. Three alternative solutions were propo

Medical Information System represents a designed system that enables medical staff to collect, store, manage, and transmit data to strengthen the health sector. Healthcare data is sensitive and therefore, it requires protection from unauthorized access. Besides, this data should be shareable among all health organizations. Thus, the health information system enables multiple users from different healthcare organizations to join the network and ha

Mobile robots have been around since the late 1960s. This kind of technology has caught the attention of many researchers since then. In the last decade, the applications of mobile robots are being applied in various sectors unleashing more benefits of automation and robotics to be captured to their maximum potential by mankind. As the tasks are getting more complex, it requires the mobile robots to be more advanced and autonomous. That is when m

Pesticide application is a critical factor in the conventional farming system to improve crop protection and yield during growth stage until post-harvest. The agrochemical residue in food product is a serious problem for consumer and also pollutes the local environment like air, soil, and water sources. Water is the main constituent for both conventional and organic paddy farming. Thus agrochemical-free paddy farming can contaminate with pesticid

Most seismic design methods generally use an equivalent-static lateral forces known as an elastic method to generate the lateral design force from the earthquake ground motions. Although this method is permissible under design ground acceleration, the accurate inelastic response is not well explained and still remains in extensive studies. In this regard, cumulative energy dissipation is an integral part of the design process in order to ensure t

Light Weight Deflectometer (LWD) is a portable device, an equipment that measures the vertical deformation imparted by a falling mass impacting a plate resting on the ground. It serves to determine the bearing capacity of compacted soil, sub-base and base course of structural pavement layers at the precise construction site. For Cambodian practices, field compaction quality and bearing capacity of the structural pavement layers evaluated by using

Global climate change is cumulatively a significant driver of global environmental changes such as flow regime, sediment, and nitrate. Thus, this study aims to estimate changes in sediment and nitrate loads under future climate change scenarios by using SWAT model in Prek Thnot river basin, Cambodia, and a tributary of the Lower Mekong River. The study included three different models (GCMs) under two emission scenarios (RCPs) for two-time horizon

This paper presents a comparative study on the direct seismic design methods for buckling-restrained knee-braced frames (BRKBFs) with single plate shear connections (SPSCs). Three significant methods, namely direct displacement-based design (DDBD), performance based-plastic design (PBPD), and yield point spectra (YPS) are investigated for the seismic application of the BRKBFs. The main objectives of this study are, (1) to determine the design bas