Groundwater Environment in Seoul, Republic of Korea

Kim, Heejung; Lee, Jin‐Yong; Jeon, Weon-Tai; Lee, Kang‐Kun

doi:10.1016/b978-0-12-803166-7.00018-0

Cited by 46 publications

(58 citation statements)

References 255 publications

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“…While people's interest in floricultural products and related services is high, and their emotions towards them are very positive, there was a high barrier to entry called "expensiveness." Given the results of the big data analysis discussed above, it is absolutely necessary to ensure consumers have various direct and indirect experiences voluntarily (Kim et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

A Trend Analysis of Floral Products and Services Using Big Data of Social Networking Services

Park

2019

J. People Plants Environ

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This study was carried out to analyze trends in floral products and services through the big data analysis of various social networking services (SNSs) and then to provide objective marketing directions for the floricultural industry. To analyze the big data of SNSs, we used four analytical methods: Cotton Trend (Social Matrix), Naver Big Data Lab, Instagram Big Data Analysis, and YouTube Big Data Analysis. The results of the big data analysis showed that SNS users paid positive attention to flower one-day classes that can satisfy their needs for direct experiences. Consumers of floral products and services had their favorite designs in mind and purchased floral products very actively. The demand for flower items such as bouquets, wreaths, flower baskets, large bouquets, orchids, flower boxes, wedding bouquets, and potted plants was very high, and cut flowers such as roses, tulips, and freesia were most popular as of June 1, 2019. By gender of consumers, females (68%) purchased more flower products through SNSs than males (32%). Consumers preferred mobile devices (90%) for online access compared to personal computers (PCs; 10%) and frequently searched flower-related words from February to May for the past three years from 2016 to 2018. In the aspect of design, they preferred natural style to formal style. In conclusion, future marketing activities in the floricultural industry need to be focused on social networks based on the results of big data analysis of popular SNSs. Florists need to provide consumers with the floricultural products and services that meet the trends and to blend them with their own sensitivity. It is also needed to select SNS media suitable for each gender and age group and to apply effective marketing methods to each target.

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Section: Resultsmentioning

confidence: 99%

A Trend Analysis of Floral Products and Services Using Big Data of Social Networking Services

Park

2019

J. People Plants Environ

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“…e inhibitory effect of retrogradation was shown with the addition of potato. Potato is known to have a low rate of retrogradation compared to cereal starches such as rice and wheat due to its size and phosphorous content [33,34]. e potato starch granule (5-100 μm) is larger than that of rice (1.5-9 μm), and potato starch contains phosphorous (0.06-0.1%), but rice does not.…”

Section: Chromaticitymentioning

confidence: 99%

Effects ofBacillus subtilisandLeuconostoc mesenteroideson the Quality Characteristics of PotatoGaraetteok

Lim

Kim

2019

Journal of Food Quality

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To investigate the texture and cooking properties of garaetteok elaborated with potato flour, experimental products were elaborated replacing partially the rice flour, traditionally used, with nonfermented (NF) or fermented potato flour with Bacillus subtilis (BS) or Leuconostoc mesenteroides (LM) in percentages of 15% (NF15, BS15, and LM15) and 20% (NF20, BS20, and LM20). The control product (CON) was made using only rice flours. The pH of garaetteok was significantly lower in the BS and LM groups compared to CON and NF. Titratable acidity was the highest in BS20 and LM15. LM groups showed similar textural profiles to CON. The addition of potato flour to garaetteok increased the turbidity of soup (tteokguk), but the fermentation significantly lowered its turbidity. During storage for 24 h, garaetteok with fermented potato flour showed the inhibition of starch retrogradation. All scores of LM15 and LM20 were better than other potato garaetteoks and similar to those of CON with the exception of color acceptance. Consequently, garaetteok-added potato flour fermented with L. mesenteroides was the most preferable in terms of texture, cooking, and sensory characteristics.

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“…A trend in groundwater quality was analyzed using non parametric Mann-Kendall test in Iran [14]. In Korea, various studies have evaluated groundwater quality in different regions, in different years [15][16][17][18][19]. Studies on trend in water quality using Mann-Kendall test and Sen's slope found in different regions of the country [20,21].…”

Section: Introductionmentioning

confidence: 99%

Countrywide Groundwater Quality Trend and Suitability for Use in Key Sectors of Korea

Jeon

Raza

Lee

et al. 2020

Water

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Under changing climate, increasing groundwater use has risen the concern for groundwater quality variations over recent years, to maintain a healthy ecosystem. The objectives were to identify trend of temporal variations in groundwater quality and its suitability for different uses in Republic of Korea. Water quality data were collected from 198 monitoring stations of Groundwater Quality Monitoring Network (GQMN), annually for the period of ten years (2008–2017). Non-parametric trend analysis of a Mann–Kendall test and Theil–Sen’s slope was done on groundwater physico-chemical data of ten years. Groundwater suitability evaluation was done for use in main sectors including domestic (drinking) and agriculture (irrigation). For drinking suitability analysis, results were compared with World Health Organization (WHO) and Korean Ministry of Environment (KME) established guidelines. For irrigation suitability evaluation, electrical conductivity (EC), Sodium Adsorption Ratio (SAR), percent of Na+, Residual Sodium Carbonate (RSC), US Salinity Laboratory (USSL), and Wilcox diagram were used. Most significantly, water type belongs to Ca-HCO3 and Ca-SO4 types, but a small proportion belongs to Na-CO3 and Na-Cl types. Approximately, 96% and 93% of groundwater samples are suitable for drinking, based on WHO and KME guidelines, respectively. Around 98% and 83% of groundwater samples are in suitable range for irrigation use, based on USSL and Wilcox diagrams, respectively.

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Groundwater Environment in Seoul, Republic of Korea

Cited by 46 publications

References 255 publications

A Trend Analysis of Floral Products and Services Using Big Data of Social Networking Services

A Trend Analysis of Floral Products and Services Using Big Data of Social Networking Services

Effects ofBacillus subtilisandLeuconostoc mesenteroideson the Quality Characteristics of PotatoGaraetteok

Countrywide Groundwater Quality Trend and Suitability for Use in Key Sectors of Korea

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