At present, prediction of streamflow simulation in data-sparse basins of the South East Asia is a challenging task due to the absence of reliable ground-based rainfall information, while satellite-based rainfall estimates are immensely useful to improve our understanding of spatiotemporal variation of rainfall, particularly for data-sparse basins. In this study the TRMM 3B42 V7 and its bias-corrected data were, respectively, used to drive a physically based distributed hydrological model BTOPMC to perform daily streamflow simulations in Nam Khan River and Nam Like River basins during the years from 2000 to 2004 so as to investigate the potential use of the TRMM in complementing rain gauge data in hydrological modelling of data-sparse basins. The results show that although larger difference exists in the high streamflow process and the low streamflow process, the daily simulations fed with TRMM precipitation data could basically reflect the daily streamflow processes at the four stations and determine the time to peak. Furthermore, the calibrated parameters in the Nam Khan River basin are more suitable than that in the Nam Like River basin. By comparing the two precipitation data, it indicates that the integration of TRMM precipitation data and rain gauge data have a promising prospect on the hydrological process simulation in data-sparse basin.

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Groundwater pollution has brought huge and far-reaching impacts to people's lives and production. How to monitor and prevent contaminated groundwater quality is a difficult problem that must be solved in front of environmental workers. Groundwater migration also affects the extent of groundwater pollution. According to the movement of groundwater and the migration of pollutants, prevention and control of groundwater pollution. By simulating groundwater movement, groundwater pollution is analyzed, and groundwater is remotely monitored by a monitoring well using a control system to monitor various parameters at a certain location. If a parameter exceeds the target range, water samples that exceed the standard are extracted and repaired. This paper simulates groundwater monitoring and repair using Kingview software and designs a control system to achieve remote control of groundwater monitoring and repair.

Heat exchangers are commonly used to exchange heat in industrial production. According to the law of energy conservation, the characteristics of shell-and-tube heat exchanger were analyzed and the dynamic model was established. The dynamic model can effectively simulate the change of outlet temperature of cold stream with the change of flowrate and inlet temperature of hot stream. The relationship curves of the dynamic model between temperature, flowrate and time were obtained through simulation experiments. By using the simulation results the heat transfer process of heat exchanger can be analyzed comprehensively, which provides a theoretical basis for the control and optimization of heat transfer process in engineering practice.