• 한국물환경학회지
• /
• 제25권2호
• /
• pp.256-267
• /
• 2009

A method of estimating pollutant delivery ratios considering watershed physical and meteorological characteristics and flow conditions using SWAT-K watershed model was described, and pollutant delivery characteristics during dry and rainy seasons, for monthly and seasonally, and with flow regimes were investigated for the Chungju dam watershed. Delivery ratios for sediment, T-N, and T-P showed higher values over 100% during dry and winter seasons with low pollutant loads and flows, and showed relatively uniform ones under 100% during rainy and summer seasons with concentrated loads and flows. It was found that mainly wet flows during summer seasons played very important roles in investigating the delivery characteristics of total or nonpoint pollutant loads, because more than 90% of total loads were influenced by nonpoint source, and discharged with the flows. From the results, we could find out the delivery characteristics with various watershed and flow conditions which are difficult to consider by actual measurement, and could get a foothold of estimating more reasonable and scientific allocated loads for water quality standard using the reliable method of estimating delivery ratios with a watershed model.

• 원예과학기술지
• /
• 제33권2호
• /
• pp.276-282
• /
• 2015

Seasonal variation in the contents of sugars (fructose, glucose, and sucrose) in the floret, leaf, and stem of broccoli were studied in ten commercial broccoli cultivars. Plants were grown in the spring and fall seasons in 2011. In both seasons, glucose was the major constituent, comprising about 50% of the total sugar content in the floret and leaf tissue of most cultivars, whereas the broccoli stem showed an unusual pattern of accumulation. Sucrose exhibited greater cultivar dependency as well as seasonal variation compared to fructose and glucose in floret and leaf tissues. The floret tissue had a higher total content of sugar in the spring compared to the fall due to an increase in glucose and fructose. However, most of the leaf and stem tissues of broccoli had a higher total sugar content in the fall compared to the spring. Furthermore, stem and leaf tissues possessed a relatively higher total sugar content compared to floret tissue in both seasons. 'Grandeur' broccoli contained a significantly greater amount of total sugar in both floret and leaf tissues in both seasons, whereas 'YuDoRi No.1' broccoli exhibited the highest total content of sugar in stem tissue. At overall, the results showed significant influences of genotype, plant part and growing season on sugar content in broccoli.

• 복식
• /
• 제60권2호
• /
• pp.144-158
• /
• 2010

The concept and the typical characteristics of ethnic fashion were studied. 267 fashion designs from pret-$\grave{a}$-porter collections in Milan and New York from 2001 S/S to 2005 F/W were analyzed. The major conclusions of the study are as the following: The major types of ethnic fashion are Africa, American Indian, Japan, India, China, and Inca. Among these types, the first volume is Africa, the second is American Indian and others are Japan, India, China and Inca in order. Ethnic fashion changes in years showed reduction from 2001 to 2004, but much rise in 2005 showed more than 30% from 2001. Much more ethnic fashion designs were presented in S/S seasons than in F/W seasons. Africa ethnic fashion designs were more popular in S/S seasons. India ethnic fashion designs were more popular in F/W seasons. In the comparison of the Milan and New York collection, ethnic fashion designs appeared more in Milan collections than in New York from 2001 to 2003. But ethnic fashion designs appeared more in New York collections than in Milan in the year of 2005.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2017년도 9th Asian Crop Science Association conference
• /
• pp.296-296
• /
• 2017

In order to study the content variation of Quercetin and Kaempferol associated with Varieties (with thorn, without thorn), Cultivating Locations, Collecting Seasons, Leaves of Cudrania tricuspidata (carrier) Bureau containing higher content of pharmaceutical components than the other parts were tested after collecting 6 varieties including w or w/o thorn from 4 locations such as Cheongsong, Milyang, Goesan and Gochang at 3 seasons, spring, summer and fall in 2015 and 2016. As a result, Kaempferol content associated with Varieties between with thorn and without thorn, collecting Locations and Years have no difference statistically in their mean values but the differences associated with Seasons were statistically significant. The content was higher at spring and then gradually declined at summer and fall. The content variation in Year 2015 which was higher at spring and lower at summer and then recovered at fall abnormally, shows similar pattern of sunshine variation of the year. The content variation of Quercetin and Kaempferol seems to be come from climate fluctuation specially in Sunshine hours rather than Varieties, Locations. The variation associated with drying methods for utilizing leaves are statically significant. Natural Dry was shown the least variation because heat input while drying makes degradation of the content.

• Asian-Australasian Journal of Animal Sciences
• /
• 제15권5호
• /
• pp.643-649
• /
• 2002

Availability of feeds and fodder and amount of their intake by large ruminants in eight different agro-ecological zones (AEZ) of Bangladesh were recorded over a year. Roughages such as straw, naturally grown green grass, water hyacinth, tree leaves, legumes and sugarcane tops were the major feedstuffs fed to the large ruminants. Amount of intake of these ingredients differed (p<0.01) across AEZ studied, but did not differ across seasons or farmers' categories (p>0.05) except for green grasses (p<0.01). Byproduct concentrates offered to animals in the studied areas were rice bran, wheat bran and different oil cakes. The amount of intake of concentrates by the animals also differed (p<0.01) across AEZs, but did not differ across seasons or farmers' categories (p>0.05), except for rice bran and wheat bran which differed between season and farm category, and season respectively (p<0.01). The large standard errors of mean indicate that there are wide variations in intake of roughages and concentrates across AEZ's, seasons and farmers' categories and even across days. This further indicates that the feeding practices of large ruminants are largely heterogeneous. In addition to feeding roughage and concentrates, the animals were allowed to graze for six hours a day. Grazing hours also differed (p<0.01) across AEZ, but not by farmers' categories or seasons.

• Ocean and Polar Research
• /
• 제30권1호
• /
• pp.1-10
• /
• 2008

In order to find the effect of intertidal sediments on nutrient cycle in coastal environment, we measured ammonia, nitrate, phosphate, and silicate concentrations every hour during at least 12 hours in the entrance of Keunso Bay during four seasons. The content of ammonia and silicate do not change considerably with season, but nitrate shows large seasonal variation. In summer, nitrate concentration was much lower than in other seasons, which resulted from large biological uptake and active denitrification in intertidal sediments during summer. Phosphate also exhibit seasonal variations, but not that large like nitrate. N/P and N/Si ratios were lower in summer than in other seasons, which was due to active denitrification in the intertidal sediments during summer. For all seasons, ammonia concentrations were higher at low tide than at high tide, but nitrate concentrations were higher at high tide. Dissolved inorganic nitrogen concentrations measured in spring, summer, and winter were higher at high tide than at low tide, but in fall, they were higher at low tide than at high tide. For spring and winter, phosphate and silicate concentrations were higher at low tide than at high tide, while in summer and fall, they were higher at high tide than at low tide. In Keunso Bay, intertidal sediments affect significantly the nutrient cycle around the coastal areas. The intertidal sediments act as a source for ammonia and silicate, but as a sink for nitrate. However, phosphate is not considerably influenced by intertidal sediments.

• 환경위생공학
• /
• 제11권3호
• /
• pp.47-52
• /
• 1996

Personal exposure levels of $NO_{2}$ for office workers and housewives Living in A-San and neighboring prefectures were measured in two seasons with $NO_{2}$ filter badge. $NO_{2}$ concentrations in indoor and outdoor air in their offices and houses were also measured in the same periods. Personal exposure levels in winter ranged from 13 to 132 ppb and its distribution pattern was remarkably different from the other seasons (15.2-17.9 ppb). This fact suggests that use of heating apparatus affects largely $NO_{2}$ indoor air pollution in winter seasons. Actually, $NO_{2}$ exposure levels of subjects used Kerosene heater (43.6ppb) and gas heater (33.4ppb) were higher than those of subjects unused heating apparatus (18.0ppb). Personal exposure levels of $NO_{2}$ for man and woman Living in the same houses were correlated well each other. The time spent indoors for office workers and housewives were both longer than 22 hour a day. Home staying time was about 60% of total indoor staying time for office workers and 90% or more for housewives. Personal exposure levels were significantly related to indoor exposure levels at home all seasons. Furthermore, personal exposure levels could be estimated from $NO_{2}$ concentrations and staying times in various Living environment.

• 한국식품영양과학회지
• /
• 제27권4호
• /
• pp.775-784
• /
• 1998

This study was conduced to investigate the seasonal variation of dietary intake and quality obtained by 24 hour recall method in Korean adults living in rural area. The mean daily intakes of 4 seasons were 1,692kcal for energy, 63g(14.8% of energy) for protein, 30g(15.7% of energy) for fat, 257g(60.7% of energy) for carbohydrate. Mean daily intakes were significantly highest in winter for most of the nutrients, and lower in summer for energy, fat, calcium, iron. Mena adequacy ratio(MAR), an index of overall nutritional quality was 0.65 in winter, 0.67 in spring, 0.65 in summer and 0.72 in autumn and nutrient adequacy ratio(NAR) was significantly different fro vitamin C agmong different seasons. Subjects consumed usually 15.3 different foods in winter, 14.5 in summer, 13.9 in spring and 13.7 in autumn. The number of food consumed was positively correlated with intake of most nutrients, especially in autumn. For variety among the five major food groups(grain, meat, dairy, fruit, vegetable) with a dietary diversity scores(DDS) calculated, the average socre of DDS was 3 in all seasons and omitted food groups were usually dariy and fruit. In conclusion, dietary intake and quality of Korean adults were different according to seasons.

• International journal of advanced smart convergence
• /
• 제8권3호
• /
• pp.102-114
• /
• 2019

There are various researchers who studied the relationship between seasons and feelings. However, only a few did shed light on how these two variables affect decision-making and physical behaviors especially prosocial behavior which emphasize on the benefits of other people and/or society as a whole. Due to a lack of studies on the topic, we investigated whether the combination of seasons and message framing could be useful in eliciting intention to help on an environmental issue. A 3x2 experiment examined the interactions between seasonal mood (summer, winter, controlled) and types of message framing (gain, loss) on future helping intention (volunteer, donation, petition signing). The findings suggest that in normal circumstances where seasonal mood were not applied, gain message framing was more effective in promoting higher intention to sign a petition than loss message framing. However, when thinking of winter, loss message framing has greater ability to do so than gain message framing. Moreover, seasons and mood are found to be associated with a higher positive mood in summer and a negative mood in winter. Lastly, limitations and implications are discussed.

• 복식문화연구
• /
• 제19권6호
• /
• pp.1259-1271
• /
• 2011

This study investigates and compares the changes of naturalism in fashion presented over a 30-year period to understand the diversity of naturalism in fashion. Data were collected from 59 volumes of the "Vogue" magazine for January and July in each year from 1980 to 2009. The data used for content analysis consists of 440 words and these were condensed into three periods according to decade(1980~1989, 1990~1999, and 2000~2009). The selected words were classified into four sub-themes according to the previous research definitions such as primitive look, natural look, eco look and handcrafted look. The results are as follows. First, naturalism of fashion was highly presented in the 1980s but the percentages of naturalism in three decades were all more or less similar. Especially, natural look appeared more in the 1980s and eco look was in the 1990s, while natural look, eco look and handcrafted look were found all together in the 2000s. Second, naturalism of fashion showed higher frequency of F/W seasons in the 1990s, while S/S seasons in the 1990s and 2000s. In particular, natural look was presented more at S/S seasons. The sub-themes coexistence were presented in the 24 seasons out of 59 seasons and showed more variously in the 2000s. Third, the words selected from sub-themes of naturalism in fashion demonstrated the differences by decade.