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Author Jeong, S.W.; Park, S.; Jin, J.S.; Seo, O.N.; Kim, G.-S.; Kim, Y.-H.; Bae, H.; Lee, G.; Kim, S.T.; Lee, W.S.; Shin, S.C. url  doi
openurl 
  Title Influences of four different light-emitting diode lights on flowering and polyphenol variations in the leaves of chrysanthemum (Chrysanthemum morifolium) Type Journal Article
  Year 2012 Publication Journal of Agricultural and Food Chemistry Abbreviated Journal J Agric Food Chem  
  Volume (down) 60 Issue 39 Pages 9793-9800  
  Keywords Chrysanthemum/*chemistry/growth & development/metabolism/radiation effects; Flowers/chemistry/*growth & development/metabolism; Light; Plant Leaves/*chemistry/growth & development/metabolism/*radiation effects; Polyphenols/*analysis/metabolism; LED; light emitting diode; lighting  
  Abstract Light-emitting diodes (LEDs) are an efficient alternative to traditional lamps for plant growth. To investigate the influence of LEDs on flowering and polyphenol biosynthesis in the leaves of chrysanthemum, the plants were grown under supplemental blue, green, red, and white LEDs. Flower budding was formed even after a longer photoperiod than a critical day length of 13.5 h per day under blue light illumination. The weights of leaves and stems were highest under the white light illumination growth condition, whereas the weight of roots appeared to be independent of light quality. Among nine polyphenols characterized by high-performance liquid chromatography-tandem mass spectroscopy, three polyphenols were identified for the first time in chrysanthemum. A quantitation and principal component analysis biplot demonstrated that luteolin-7-O-glucoside (2), luteolin-7-O-glucuronide (3), and quercetagetin-trimethyl ether (8) were the highest polyphenols yielded under green light, and dicaffeoylquinic acid isomer (4), dicaffeoylquinic acid isomer (5), naringenin (7), and apigenin-7-O-glucuronide (6) were greatest under red light. Chlorogenic acid (1) and 1,2,6-trihydroxy-7,8-dimethoxy-3-methylanthraquinone (9) were produced in similar concentrations under both light types. The white and blue light appeared inefficient for polyphenol production. Taken together, our results suggest that the chrysanthemum flowering and polyphenol production are influenced by light quality composition.  
  Address Department of Chemistry and Research Institute of Life Science, Gyeongsang National University , Jinju, 660-701, Republic of Korea  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0021-8561 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:22970652 Approved no  
  Call Number IDA @ john @ Serial 26  
Permanent link to this record
 

 
Author Ali A.A.S., Zakaria S.A., Guan A.C.K., Shun C.J. url  doi
openurl 
  Title Lighting for Heritage Building: A Case Study of the Lighting Design Applied on St. George’s Church in George Town, Penang Island Type Journal Article
  Year 2020 Publication Awang M., Meor M Fared M. (eds) ICACE 2019. Lecture Notes in Civil Engineering Abbreviated Journal  
  Volume (down) 59 Issue Pages 113-119  
  Keywords Lighting  
  Abstract Light is one of the critical aspects of architecture, yet it is one of the understated elements in our daily lives. Light has a significant spot to form events, activities, and memories. Scientific studies have shown that appropriate and proper lighting does not only affect human health but daily human moods as well. Nowadays, lighting fixtures play essential roles in architecture and markets. A proper lighting fixture helps to highlight the structure, textures, and form of the shape of a building. However, the designers tend to focus more on the art aesthetics rather than the conservation ethics, such as the colorful design and the attractive lighting fixtures on the building, while the prime concern should be on realizing the impact of the lighting fixture toward the environment. The objectives of this study are to highlight the issues of the lighting system of the heritage building and suggest some recommendations to meet the requirements for the heritage building for better lighting design. The data for this research was collected using the quantitative method. Thus, as a result, it is found out that lighting design highlights the historical building, and therefore, attracts tourists, which benefit the economy. However, improper lighting installation leads to a negative impact on the society and human health.  
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  Call Number IDA @ intern @ Serial 2950  
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Author DeNicholas, J. url  openurl
  Title LED lighting and light pollution Type Journal Article
  Year 2009 Publication Electronic Design Abbreviated Journal  
  Volume (down) 57 Issue 6 Pages 37  
  Keywords Lighting  
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  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 1024  
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Author Roos, P.J. openurl 
  Title Kreative Außenbeleuchtung ohne Lichtsmog Type Journal Article
  Year 2005 Publication Licht: Planung, Design, Technik, Handel Abbreviated Journal  
  Volume (down) 57 Issue 5 Pages  
  Keywords Lighting  
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  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 1060  
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Author Babadi, S.; Ramirez-Inguiez, R.; Boutaleb, T.; Mallick, T. url  doi
openurl 
  Title Producing uniform illumination within a rectangular area by using a nonimaging optic Type Journal Article
  Year 2018 Publication Applied Optics Abbreviated Journal Appl. Opt.  
  Volume (down) 57 Issue 31 Pages 9357  
  Keywords Lighting  
  Abstract This paper proposes a new design method to create a novel optical element to generate uniform illumination within a rectangular area. Based on this model, an illuminated area is irradiated by two sets of rays; the first one irradiates the target plane after refraction from the top section of the lens, and the second one irradiates from the reflection at the side profile of the lens and then from refraction at the top part of the lens. The results show that a uniformity of over 90% can be achieved.  
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  ISSN 1559-128X ISBN Medium  
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  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2046  
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