旭硝子財団助成研究成果報告2018

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105Harman AjiwibowoRizki Armanto Mangkuto106Modelling Adaptation to Salinity Intrusion in Segara Anakan Estuary Due to Sea Level Rise(Project 2017)Development of Colorimetric Model Based on Spectral Combination of White LED Lamps(Project 2017)72旭硝子財団　助成研究成果報告（2018）affects to the fuel breeding which is based on the fuel conversion ratio capability of the fuels. At the same time those transuranium compositions also affetcs to nuclear nonproliferation aspect of plutonium which can be estimated from plutonium production composition as well as material barrier analysis. In education point of view, the significant result and research activity program can be used as educational research program espeacially for co-researcher from post graduate student and also can be collected as a refference document for university lectures. International publication will be performed as paper publication in international journal and in proceeding paper of international conference. This research activities is the thrid years of asahi glass research program which has a continuation from the first and second years of previous research activities.This study in Segara Anakan Estuary, Java Island, Indonesia is aimed to develop a salinity intrusion model and investigate the adaptation scheme to mitigate sea level rise impact. The study includes topography, water level, current velocity and salinity field data acquisition to provide the required data for modeling. The bathymetry data are obtained from secondary data. The model uses Surface-water Modeling System (SMS) developed by US Army Corps of Engineer. The flow model within the SMS (namely RMA2 module) results in current velocities distribution in the domain and validated by field data. The validation shows good agreement. The validated flow model is developed into water quality model (namely RMA4 module). The finding is the current velocity and salinity trend is highly correlated with Citanduy River discharge which at the lowest value, the tide is able to propagate over 10 km into Citanduy River. The check dam can effectively mitigate the impact of sea level rise in 2050. The top elevation of the check dam becomes the determining point for the mitigation.Lighting technology based on light-emitting diode (LED) has grown rapidly since the last decade, due to higher luminous efficacy and longer predicted lifetime. On the light-generating side, the LED also has flexibility in spectrum emission, which can be achieved by combining different light colour of LED chips. The spectrum output of LED light can be characterized by colorimetric parameters, such as correlated colour temperature (CCT), position in the CIE chromaticity coordinates, colour shift from the reference illuminant (Duv), and various colour rendering indices. Generally, those parameters can be quantified for individual light sources only through measurement using spectrometer. Combination of multiple light colours (e.g. from different LED chips) does not necessarily yield a linear sum of the relevant individual parameters. It is therefore important to assess how individual colorimetric parameters contribute to their characteristics in the case of combination of different light colors. In Indonesia, colorimetric measurements have been conducted on various white LED lamps produced by local manufacturers. The results have shown a wide range of colorimetric parameters, e.g. CCT from 3000 K until 8000 K, and CRI Ra from 70 to 95. Henceforth, configured combination of LED chips in various LED lamps can be expected to yield variation in colorimetric parameters. The objective of this research is to develop a statistical model for predicting colorimetric parameters from combination of various individual LED-based light sources, in this case white LED lamps, based on spectral power distribution content analysis. Several colorimetric measurements were conducted for both individual light colours and their combinations. Statistical analysis was derived from the