Cambodia is lack of surface water in the dry season for serving the need of people in rural area. Another potential source of water may be groundwater, a supplement source to rainwater and surface water for additional irrigation of the wet season and dry season crop. It probably serves the needs of most of the rural and urban population. Being an integral part of the hydrological cycle, its availability depends on the rainfall and recharge condit

As a consequence of the global warming effects on rainfall changes such as droughts, hail storm or flash flood, data sets of highest daily rainfall for the period (1981-2010) were used for calculating the statistical distribution of extreme monthly rainfall in tributary of Tonle Sap Basin (Stung Chinit Catchment, Kampong Thom Province). The main objective of this paper is to develop the return period of rainfall and estimate depth of rainfall fro

The Internet of Things is considered as the next big technology revolution after the invention of the Internet. Data of IoT are very useful and could produce such huge creativity for us to build many useful applications in our daily life. In Cambodia, the IoT is still a new technology for research and development. However, Security and Privacy are the main key issues for IoT and they are still facing some enormous challenges such as DDoS Attack o

Glass, a fragile material that gains popularity in building construction, has been developed to sustain with high loads. This structural glass would not work effectively if the connection has not been able to transfer the loads properly. The study aims to optimize bolted connection of structural glass. We focus on the geometry optimization of the bolt to deal with heavy external loading that requires a strong connection. Numerical parametric stud

This study attempts to investigate size distribution of particulate matters emitted from medical waste burning and ambient air quality of a hopistal in a remote area of Cambodia. The particulate matters are mainly discussed in different size ranges of 0.1-10 µm, which was sampled by a nano-sampler on a single chamber incinerator (SCI) and a stella incinerator (SI). In addition, carbonaceous aerosols and gaseous pollutants were also included. The

Drought is one of the main natural disasters that have affected agriculture and rice production in Cambodia. The main objective of this study is to assess the drought in the Cambodia Mekong Delta using different drought indices (Standardized Precipitation Index (SPI), Percent Normal Index (PNI) and Decile Index (DI). The results showed that Index (PCI) values ranged from 14.79 to 16.69, meaning that the rainfall pattern of the study area is seaso

The study aimed to analyze rainfall trend in Tonle Sap Lake regions of the Lower Mekong Basin and to determine if these time series belonged to a similar regime, have had any significant trends. To reveal the behaviors of annual and monthly rainfall for trends, historical data series of available 6 stations in more than 30 years from the 1980s to 2012 were used in this study. From the basic daily rainfall data, total and means of monthly and annua

People are faced with shortages of freshwater for consumption and irrigation during the dry season and the early part of the wet season1 as well as during the dry spell within the wet season. This paper assesses rice water use in Chrey Bak river catchment located in the Rolea B’ier district, Kompong Chhnang province - Cambodia using CROPWAT model. The study of rice crop water requirement is important not only for irrigation system design, irrigat

The main objective of this study is to assess the SWAT performance for simulating daily water discharge and sediment transport from a catchment of Tonle Sap Lake Basin. The model was calibrated from June 2010 to November 2013 for flow and from June 2011 to November 2013 for sediment. The result showed that the flow simulation was better than that of sediment transport. The model calibration was better during the first hydrological year but lower

Effects of aluminium sulfate and Klaraid on physico-chemical characteristics of wastewater and total phosphorous removal during wastewater treatment process at a local beverage company in Phnom Penh were investigated followed by the determination of the optimum application of aluminium sulfate and Klaraid for phosphorous flocculation. Aluminium sulfate versus total phosphorous at different ratios of 20:1, 21:1, 22:1, 23:1, and 24:1 were studied w