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Recently, in the era of low carbon and green growth, the importance of railway transportation is being emphasized However, there is a lack of research on simulation for railway depot. This paper presents the development of the dynamic simulator for LRT(Light Rail Transit) depot. This study presents explanations of requirement analysis, architecture, database design, simulation algorithm, and design and development of the simulation tool. The dynamic LRT depot simulation tool consists of four modules; a Network Editor to create and modify information regarding railroad, train, signal, turnout, job and station, a Simulator to calculate train movement algorithm, a Reporter to show simulation results in table and graphs, and an Animator to animate simulation results dynamically. It is hoped that this study on general details of structure, design and development of LRT depot dynamic simulator will perform as a good reference to future development of new simulation tools.

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A yield and quality of tomato plants depends on the balance of growth and development. It is need the indicators for automatic image monitoring of tomato growth. This research was conducted to investigate a effective indicators for monitoring of tomato growth. The temperature are controlled 16 and 18 , the drain quantity of nutrient solution 9700ml(week/8nozzle) and 14000ml(week/8nozzle). The leaf width and length at 18 are bigger than at 16. The brightness L and redness are low at 18 than at 16 , but yellowness b was high at 18. The difference of growth are bigger at 18 than 16. The color difference of leaflet E, L, a are higher in 2-3 cluster than 1, 4, 5 cluster, but color b is higher in nearest leaflet to stem apex. At the drain quantity of nutrient solution, 9700ml(week/8nozzle), a leaf width and length are small than at 14000ml(week/8nozzle), but is high the angle of leaflet. The leaf color did not differ significantly by the drain quantity of nutrient solution. The stem diameter was more affected by temperature, but the stem length was affected by the temperature and the quantity of nutrient solution supply. A fruit width and length were more affected by low temperature(16) than high temperature(18), and 9700ml(week/8nozzle) than 14000ml(week/8nozzle). The number of fruit were highest at 16 and 14000ml(week/8nozzle). In addition to leaf width, length, stem diameter and stem length, the angle and the color of leaflet are useful for indicators for automatic image monitoring of tomato growth, especially at the leaflet of 2-4 cluster below stem apex.