This research aims to investigate the adulteration of Khao Dawk Mali 105 rice based on storage age using Near-Infrared Spectroscopy (NIRS) with Fourier Transform Near-Infrared Spectroscopy (FT-NIR) in the wavenumber range of 12,500 – 4,000 cm-1 (800 – 2,500 nm). Storage duration significantly impacts the quality of cooked rice. This research is divided into two parts: 1) to investigate the feasibility of separating rice according to storage age (1, 2, and 3 years) using the best model created by an Ensemble method combined with Second Derivative, which achieved an accuracy of 96.3%. 2) To investigate adulteration based on storage age by adulterating at 0% (all 2- and 3-year-old rice), 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100% (all 1-year-old rice). The best model was created using Gaussian Process Regression (GPR) combined with Smoothing + Multiplicative Scatter Correction (MSC), with coefficients of determination (r²), root mean square error of prediction (RMSEP), bias, and prediction ability (RPD) values of 0.92, 8.6%, 0.9%, and 3.6 respectively. This demonstrates that the adulteration model can be applied to separate rice by storage age (1, 2, and 3 years). Additionally, the color values of rice with different storage ages show differences in L* and b* values.
โรงงานผู้ผลิตข้าวพบปัญหาการปลอมปนของข้าวสารที่มีอายุการเก็บรักษาต่างกัน โดยทั่วไปการคัดแยกการปลอมปนจะใช้วิธีมาตรฐานโดยการหุงข้าว จากนั้นนำข้าวหุงสุกไปวัดเนื้อสัมผัสเพื่อแยกอายุของข้าว ซึ่งใช้เวลาและเป็นการทำลายตัวอย่างและเกิดความล่าช้าในการตรวจสอบคุณภาพข้าวสาร งานวิจัยนี้ใช้เทคนิคเนียร์อินฟราเรดสเปกโทรสโกปี (Near-Infrared Spectroscopy, NIRS) ในการตรวจสอบการปลอมปนของข้าวสารพันธุ์ขาวดอกมะลิ 105 (KDML 105) ที่อายุการเก็บรักษาต่างกันเพื่อแก้ไขปัญหาดังกล่าว
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
The purpose of this research aims to guidelines the identity design for high-speed rail stations, which are divided into four steps: 1) Survey and analysis of identity at the high-speed train stations, including subway in Japan and Taiwan. 2) Comparison the perception of the environment by the questionnaire at BTS, MRT BL, Airport Rail Link (AERA1), and MRT PPL in Bangkok from passengers 800 passengers. 3) Survey and analysis the perception of identity at the MRT Blue Line by questionnaires 800 passengers at Wat Mangkorn, Sam Yod, Sanam Chai, and Itsaraphap stations. 4) To analysis with the descriptive statistics and one-way ANOVA. Study and survey of the high-speed rail environment from Bangkok to Nong Khai, then synthesize the identity design guidelines by 12 experts with structured interviews to summarize the conceptual framework for identity design for high-speed rail stations. The results shown that the identity of train stations in Japan and Taiwan is designed based on architectural and historical concepts that align with the local environment, society, and lifestyle near the stations. This design approach is evident at stations serving as significant tourist attractions and in the surrounding environment, including external buildings and nearby public transportation connections, as well as entrance and exit doors to the station. In summary, four types of identities have been identified: 1) The Identity Historical and Architectural 2) The Identity of Culture 3) The Identity from Cartoons and 4) The Identity of Art and Design
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
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