• Title/Summary/Keyword: Preference order

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Physical habitat and chemical water quality characteristics on the distribution patterns of ecologically disturbing fish (Largemouth bass and Bluegill) in Dongjin-River Watershed (동진강 수계에서 생태 교란어종(큰입배스, 불루길)의 분포에 대한 물리적 서식지 및 화학적 수질 특성)

  • Kang, Yu-Jin;Lee, Sang-Jae;An, Kwang-Guk
    • Korean Journal of Environmental Biology
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    • v.37 no.2
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    • pp.177-188
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    • 2019
  • The objective of this study was to analyze the distribution patterns of two exotic disturbing fish species (largemouth bass, Micropterus salmoides and bluegill, Lepomis macrochirus), their physical habitat features, and chemical water qualities from 13 sites of Dongjin River. The relationships between the fish distributions and water chemistry and physical habitat characteristics (i.e., bottom substrate) were evaluated by comparing dominant vs. absent regions of largemouth bass and bluegill. The relative abundance of the two species decreased sharply with decreased in the water quality in terms of BOD, PO4-P and pH, but not with NO3-N and conductivity. The bluegill showed no difference in habitat preference between the two regions with regard to the bottom structure, while the largemouth bass had significant differences in the bottom structures of silt, coarse gravels and boulders. The dominant species were Zacco platypus (14.6%), Lepomis macrochirus (14.0%), and Micropterus salmoides (9.8%) in the order of relative abundance, indicating that exotic species (24% in total) dominated the fish community, perhaps ensuing large ecological disturbances on the ecosystem. In conclusion, the results of this study suggest that the distribution of the two exotic species may be largely influenced by water quality of organic matter and nutrient pollutions.

A Study on Selection of Media to Communicate Information for Raising Awareness of Soil Erosion Control Projects (사방사업 인지도 확산을 위한 정보전달 매체 선정 연구)

  • Ryu, Yoon-Jin;Cho, Dong-Gil;Youn, Ho-Jung;Lee, Chang-Woo;Lee, Ji-Hyun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.21 no.2
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    • pp.1-11
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    • 2018
  • As a result of climate change, mountain sediment disasters due to localized heavy rain and mountain development are occuring more frequently, thus, increasing social attention to and demand for soil erosion control projects. However, since 2011 Seoul Wumyeon Mountain landslide, the public is expressing increasing anxiety as well as negative perception regarding defective project results. Therefore, this study investigated promotional terms and information media related to soil erosion control projects according to the consumer in order to increase awareness of soil erosion control projects. In this study, the information consumers were divided into experts and the general public and conducted a survey related to promotional terms and media for communicating relevant information. In the result, the experts chose landslide prevention and recovery projects (41.8%) as an appropriate promotional term for soil erosion control projects. The general public, however, chose mountain sediment disaster prevention projects (32.5%) as the appropriate promotional term. However, the analysis showed that it would be necessary to develop an promotional term that can encompass the concept of 'disaster prevention' including forest and soil disaster as the word 'landslide' can suggest soil erosion control is limited to landslides only. In the survey regarding the media for communicating information related to soil erosion control projects according to the consumer type, the experts preferred radio and TV as media to communicate the relevant information, while, among the general public, the youths preferred social media such as Facebook and Twitter (22.22%) and adults radio and TV (34.07%), As for the most effective way to promote soil erosion control projects, the experts chose traditional promotinal media such as newspaper, radio, and TV (0.172) whereas the adults and youths preferred the internet and Facebook (0.089). It appears that using the preferred media for communicating information related to soil erosion control projects according to the consumer type will be effective way to promote soil erosion control projects.

Colorimetric Properties and Color Sensibility Factors for Naturally Dyed Fabrics by Microbial Prodiginine Colorant (미생물 유래 Prodiginine 색소로 천연염색한 직물의 색채특성 및 색채감성요인)

  • Choi, Jong--Myoung;Kim, Yong-Sook;Yi, Eun-Jou
    • Science of Emotion and Sensibility
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    • v.13 no.4
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    • pp.693-702
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    • 2010
  • This study was carried out in order to investigate the colorimetric values, the color sensation and sensibility for naturally dyed fabrics with microbial prodiginine colorant and to find out the relationship among color sensation, color sensibility factors and colorimetric properties of them. Color sensation and sensibility of four different fabric stimuli coloring red purple by a microbial prodiginine colorant produced from Zooshikella sp. were subjectively evaluated by university students. The color sensibility for the naturally dyed fabrics was classified into four factors: 'pleasantness', 'gracefulness', 'characteristic' and 'relax'. Color sensibility factor 'pleasantness' was the dominant factor for the naturally dyed fabrics with microbial prodiginine colorant. All color sensibility factors showed a significant correlations with the color sensation and colorimetric properties of the dyed fabrics with prodiginine. There were showed significant relationships between the color sensibility factors and lightness $L^{\ast}$, color saturation $C^{\ast}$, $a^{\ast}$ and $b^{\ast}$. Also, color preference of the dyed fabrics with prodiginine was found to be influenced mainly by color sensibility factors.

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A Questionnaire Analysis about the Understanding of Allergic Diseases and the Attitude toward Oriental Medical Treatment (알레르기 질환 및 한방치료에 대한 일반인의 인식 조사)

  • Heo, Tae-Seok;Han, Dong-Ha;Jung, Hee-Jae;Jung, Sung-Ki;Rhee, Hyung-Koo;Ju, Chang-Yeop
    • The Journal of Internal Korean Medicine
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    • v.21 no.4
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    • pp.565-573
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    • 2000
  • Objective : This research was carried out to find out the general understanding of allergic diseases, the frequencies of allergic diseases and the attitude toward their oriental medical treatment(OMT) among common people. Methods : A total of 360 visitors at The 2nd International Exhibition on Oriental Medicine in 2000, participated in this research. We performed this survey with 22 items on the questionnaire. Results : Respondents knew the. fact that the allergic diseases were hereditary and could be affected by the living environment. 41.8% of the respondents had a past history of allergic diseases. Among the people who had allergic diseases, 63.5% had allergic rhinitis, which was the largest portion. Among them, 52.9% had a familial history. 81.5% of respondents with allergic diseases received western medical treatment for their allergies, 16.3% received both western and oriental medical treatment and 2.2% received OMT only. Among those who were treated for allergic disease, 62.0% were unsatisfied with the low effect of the treatment. To the point of excellence of OMT, 69.7%, which was the largest portion of respondents, believed that OMT could improve their constitutions. The problem with OMT was the high price of herbal medicine and this was the problem most frequently stated, by 51.4% of respondents. There was a positive attitude towards the effect of OMT, and respondents had a preference to receive OMT in the future(p<0.01). Conclusions : These days, it is a fact that the OMT for allergic diseases has a lower proportion to that of western treatment In order to increase the role of OMT, we think, oriental medical doctors need to develop an explanatory model of improving $people^{\circ}{\phi}s$ constitutions and should lower the cost of herbal medicine.

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Development of Mode Choice Model for the Implementation of Next-generation High Speed Train(HEMU-430X) (차세대 고속열차 도입에 따른 수단분담모형 개발 및 적용방안)

  • LEE, Kwang Sub;CHUNG, Sung Bong;EOM, Jin Ki;NAMKUNG, Baek Kyu;KIM, Seok Won
    • Journal of Korean Society of Transportation
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    • v.33 no.5
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    • pp.461-469
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    • 2015
  • The next generation high-speed train, HEMU-430X, was developed and is now being tested. However, the existing mode choice models based on the guidelines for feasibility studies do not consider a high-speed train with a higher speed than KTX. This limitation might result in inaccurate demand forecasting. In this research, a stated preference survey was conducted in order to supplement the problem by considering the characteristics of HEMU-430X. Based on the survey results, this research developed two mode choice models, including a multinomial logit model and a nested logit model. For this purpose, the utility functions of travel time and travel costs were estimated using a Limdep 8.0 NLOGIT 3.0 package. After comparing the two models, it was concluded that the nested logit model is appropriate. The paper suggested a plan to implement the nested logit model and presented a policy implication.

The Study of the Taste and the Intake-Frequency for Kwamaegi - Centering around Kyungbuk Regions- (꽁치과메기에 대한 선호도 및 섭취빈도에 관한 연구)

  • 조영대;김정애;오승희
    • The Korean Journal of Food And Nutrition
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    • v.13 no.6
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    • pp.585-594
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    • 2000
  • We made a survey of the pattern of dietary life, the taste and the intake-frequency for Kwamaegi in Kyungbuk province. And the results were summarized as follows : 1. Flavor(65.2%), nutritive value(14.6%), cleanliness(14.3%), price(4.3%) and calorie(0.7%) were considered to select food in that order. 2. The younger, the more they preferred foreign food to Korean food and the older, the more they preferred Korea food to foreign food. 3. Most of people(91.4%) answered positively to Kwamaegi and had a high preference of Kwamaegi. On most occasions, they were inclined to eat Kwamaegi as the side-dish(71.1%) served with drink. 4. Most of men(61.1%) have eaten 3∼10 Kwamaegis at a table, but most of women(53.7%) have eaten 1∼2 Kwamaegis at a table.

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Preparation and Quality Characteristics of Namul-kim bugak Using Aster yomena (쑥부쟁이를 활용한 나물김부각 제조 및 품질특성)

  • Lee, Gyeong-Eun;Park, Su-Jin;Jung, Yeon-Kwon;Go, Geun-Bae;Son, Byeong-Gil;Jeong, Ji-Suk
    • Korean journal of food and cookery science
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    • v.32 no.1
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    • pp.50-57
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    • 2016
  • In this study, kim (dried laver) bugak ("KB"), Aster yomena bugak ("SB"), and namul (vegetables)-kim bugak (combination of Aster yomena and kim) ("NB") were prepared and their quality characteristics were investigated. NB was made by slicing Aster yomena, seasoning it with perilla seeds, attaching it to kim and applying glutinous rice paste, followed by freeze-drying. SB had a higher oil absorption rate than KB, reflecting the high oil absorption rate of namul (here, Aster yomena). DPPH radical scavenging activity was highest for SB; whereas, NB had higher DPPH radical scavenging activity than KB, indicative of the higher antioxidant capacity of namul, as compared to kim. With longer storage period, moisture content tended to be increased, while maximum load, yield stress and hardness tended to be decreased. Overall preference was in the order of NB>KB>SB, without statistical significance. Acid value and peroxide value of NB, stored at $25^{\circ}C$ for 40 days, tended to be increased gradually but did not meet the criteria for rancidity. Therefore, NB could be stored at $<25^{\circ}C$ for > 40 days. Furthermore, it would be possible to make functional bugak using a variety of namul, as well as Aster yomena.

A Comparative Study on the Housing Viewpoint between Korean and Chinese University Students (한.중 대학생의 주거관에 대한 비교 연구)

  • An, Ok-Hee;Jo, Oung-Mi;Hao, Jia
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.121-129
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    • 2009
  • Today, we are living while interchanging with various countries in multilateral measures and residential culture have been changed while interchanging in the same manner. In order to become an internationally recognized residential environment designer in this environment, we must understand the housing viewpoint of residents in that country first. Therefore, this study is intended to obtain the useful materials for residential environment design of Korea and China by comparing the housing viewpoint between Chinese students studying in Korea and Korean students. A survey using questionnaire was conducted on 205 Korean students and 193 Chinese students (Chinese race) from Y University on a random sampling basis. The result of survey is as follows. First, as both Korean and Chinese university students have a similar tendency on previous house type, current house type, and desired house type, it can be understood that they are similar each other in the experience and preference of house type. Second, Korean and Chinese university students consider and as the most important functions of residence, but Chinese university students consider more functions of residence than Korean students. And, both Korean and Chinese students consider a living room as the most important space among housing spaces, but Chinese consider a private room more importantly than Korean. Third, Chinese university students have stronger desire to possess houses, and desire to purchase houses with larger and more rooms at earlier time than Korean university students. Fourth, when selecting the house, Chinese university students give a higher consideration in terms such as , , , , and than Korean university students. Fifth, satisfaction level of Korean students on current houses was average as a whole, and most Chinese students were generally satisfied with their houses. Sixth, as both of Korean and Chinese university students have higher level of consideration in the items such as safety>, , , , , , , , , , and compared to the level of satisfaction, thoughtful consideration should be given to those items in housing planning.

A Study on dress and its Ornaments for farm-music (농악복식(農樂服飾)에 관한 연구(硏究))

  • Suh, Ok-Kyu
    • Journal of the Korean Society of Costume
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    • v.12
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    • pp.9-23
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    • 1988
  • This study is on the costumes for Korean traditional play, Nong-ak(farm music), and intends to analyze their aesthetic features, laying emphasis on Pilbong Nong-ak, Im sil, Chollanam-do. About its origin there are many kinds of theories; for example, the theory of hoping stability, the theory of it being related with Buddhism, the theory of martial music, etc. Shamanic, Buddhist, and martical fators that support these theories are expressed through flags, bells, drums, Deograe (half-coats), Cheonrips (sang-mo, felf hats), go-kkals(peaked hats), colored lines called 'ga-sa', which are used in Nong-ak. The characteristic of the costumes used in Pilbong Nong-ak is that it keeps its conservativeness and the costumes of its members are various and splendid. For example, leader groups' black half coats, Changbu's and Hwa-dong's red and bule over coats are remarkable. Particpants wear gok-kal or cheonrip, trousers and half coats which are the basic costumes of Korean Hanbok, and wear blak half coats or blue vests and put blue, red, and yellow lines around them. The colors and knotting methods of those lines in this region are the same with those of chollawoo-do and Kyongi province, but different form those of Kongwon and Kyong-sang province using green, red, and yellow colors. This comparison of colors shows each region's preference of peculiar colors and those colors coincide with colors used in flags. The research on the aesthetic characteristics of Nong-ak clothes through each region's clothes tells us that these can be linear clothes which have expressiveness as stage clothes used in Madangori, the play which is performed in the field, and modern spatial formativeness. Those characteristics are as follows; 1. The expressions of a rhythmical and daring round line by turning a long line of sang-mo. 2. Various rhythms according to the attaching methods. 3. The expressions of thick, simple, and daring color lines. 4. Natural beauty of materials. 5. The popular simplicity and non-technicality 6. The beauty of five-direction colors, Oriental ideal colors Consequently in this study our national consciousness of beauty are examined through clothes. It is suggested that the aesthetic characteristics of Nong-ak clothes and ornaments should be effectively expressed, for this purpose. interests in participants' clothes should be increased in order to prevent the confusion of each region's features. Also it is necessary to improve color lines, their length, width, and knotting methods, and beautify instrument. Finally this study intends to bring the reappraisal about the art of Nong-ak clothes and its re-establishment in view of modern aesthetic consciousness.

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New Flood Hazard Mapping using Runoff Mechanism on Gamcheon Watershed (유출메커니즘을 활용한 감천유역에서의 새로운 홍수위험지도 작성)

  • Kim, Tae Hyung;Han, Kun Yeun;Park, Jun Hyung
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.36 no.6
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    • pp.1011-1021
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    • 2016
  • This study performs the potential flood hazard analysis by applying elevation data, soil data and land use data. The susceptibility maps linked to elevation, soil and land use are combined to develop the new types of flood hazard map such as runoff production map and runoff accumulation map. For the development of the runoff production map, land use, soil thickness, permeability, soil erosion and slope data are used as runoff indices. For the runoff accumulation map, elevation, knick point and lowland analysis data are used. To derive an integrated type of flood potential hazard, a TOPSIS (The Technique for Order of Preference by Similarity to Ideal Solution) technique, which is widely applied in MCDM (Multi-Criteria Decision Making) process, is adopted. The indices applied to the runoff production and accumulation maps are considered as criteria, and the cells of analysis area are considered as alternatives for TOPSIS technique. The model is applied to Gamcheon watershed to evaluate the flood potential hazards. Validation with large scale data shows the good agreements between historical data and runoff accumulation data. The analysis procedure presented in this study will contribute to make preliminary flood hazard map for the public information and for finding flood mitigation measures in the watershed.