• 제목/요약/키워드: Nutrient Balance

검색결과 378건 처리시간 0.027초

EFDC-WASP을 이용한 진양호의 3차원 수리.수질 변화 모의 (3-Dimensional Hydrodynamic and Water Quality Change Simulation of Jingyang Reservoir Using EFDC-WASP)

  • 정영원;김영도;김정곤
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2010년도 학술발표회
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    • pp.1079-1083
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    • 2010
  • 하절기에 집중되는 강우로 인해 국내의 경우 저수지와 댐 건설이 불가피 하였으며, 이들 구조물에 의한 수체의 거동 및 수질의 분포 또한 일반 하천과는 다른 특성을 지니고 있다. 특히, 흐름 방향보다 수심 방향으로의 특성이 강하게 작용하는 호소에서는 3차원 수리 수질 모델링을 적용함으로써 모의 결과에 대한 신뢰성을 높일 수 있다. 하천의 발원지로서의 댐(저수지)과 하천과 하천사이에 위치한 저수지의 특성이 다르며, 하천 사이에 위치한 저수지의 경우, 하천과 하천을 이어주며 그 흐름특성과 수질의 분포 및 변화의 양상의 바뀐다는 점에서 독립적이며, 연계되는 구조의 특징을 동시에 반영할 수 있어야 한다. 본 논문에서는 낙동강에 위치한 남강댐(진양호)를 중심으로 연구를 진행하였으며, 안동댐 등처럼 하천의 발원지가 아닌 하천과 하천 사이에 위치한 호소(댐)으로 이와 같은 특징을 반영하여 수질오염총량관리제에서의 목표수질 달성여부와 점 및 비점오염원에서 발생되는 오염부하량의 변화에 따른 저수지 내의 수리 수질 모의를 EFDC-WASP의 연계 모델을 통해 연구하고자 하였다.

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저공해성 산란계 사료 개발을 위한 영양소 균형 평가 (Evaluation of Nutrient Balance for Development of Low-Pollution Layer Diets)

  • 홍종욱;김인호;권오석;이상환;이승진
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2000년도 추계학술대회
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    • pp.259-261
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    • 2000
  • 본 연구는 사료내 인분해효소 phytase을 첨가하여 곡류내 유기태인의 이용성을 최대화하고 인의 배설량을 최소화하므로서 저공해성 산란계 사료 개발에 기초자료로서 활용하는데 목적이 있다. 부화 후 64주령된 갈색 하이라인 24수(평균체중 1.9kg, 산란율 78.4%)를 공시하였다. 대조구는 옥수수-대두박 위주로 배합된 사료, 처리구는 대조구 사료에 각각 phytase를 200 unit/kg, 400 unit/kg 그리고 600 unit/kg 첨가한 구로서 4처리 3반복, 반복당 2수씩 완전임의 배치하였다. 건물과 질소 이용률을 보면 처리간의 차이는 보이지 않았다(P>0.05). 광물질 중 회분과 칼슘의 경우 phytase를 200 unit을 첨가한 구에서 가장 높은 이용률을 보였다(P<0.05). 인의 이용률은 phytase를 600 unit 첨가한 구가 57.64%로 다른 처리구보다 이용률이 높은 것으로 나타났다(P<0.05). 칼슘의 섭취량과 배설량을 고려한 결과 칼슘의 축적량은 phytase를 200 unit와 400 unit 첨가한 구가 대조구와 phytase를 600 unit 첨가한 구보다 높았다(P<0.05). 산란계에 대한 각각의 인의 섭취량을 보면 phytase를 600 unit 첨가한 구가 대조구, 200 unit 첨가한 구, 400 unit 첨가한 구보다 많은 양을 섭취하였으나(P<0.05), 인의 배설량에는 별다른 차이가 없었다(P>0.05). 그로 인해 인의 축적량 또한 phytase를 600 unit 첨가한 구가 다른 처리구에 비해 많이 축적되었다(P<0.05). 혈중 칼슘의 함량은 phytase를 400 unit 첨가한 구와 600 unit 첨가한 구, 대조구간에는 서로 유의적인 차이가 없었고, phytase를 200 unit 첨가한 구보다 그 함량이 높게 나타났다(P<0.05). 결론적으로 산란계 사료에 phytase를 첨가할 때 환경문제를 야기시킬 수 있는 인의 배설량을 감소시키고 값비싼 무기태 인의 일부를 대체하는데 크게 기여할 수 있으리라 사료된다.

생강 약침의 임상적 활용을 위한 고찰 (A Study of Ginger Herbal Pharmacopuncture for Practical Application)

  • 이채우;이병훈;윤현민
    • 대한약침학회지
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    • 제12권1호
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    • pp.43-51
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    • 2009
  • Objective : The purpose of this study is to present the standard for practical application of ginger herbal pharmacopuncture Material and Methods : We refer to ancient literatures and the recent papers for ginger. Conclusions : The following results have been obtained 1. The effect of ginger(Zingiber officinale Roscoe) is to "release exterior", "balance nutrient & defensive qi", "resolve phlegm", "arrest coughing", "warm the lungs". So ginger herbal pharmacopuncture can be applied to treating fever, chilling sign, headchae, snuffle and gasping cough due to cold affection and treating the symptoms like sputum and asthma that be revealed by pulmonary disease. 2. The effect of ginger is to "warm spleen and stomach", "arrest vomiting" "promote normal flow of water". So ginger herbal pharmacopuncture can be applied to treating nausea, vomiting, abdominal distension and diarrhea due to phlegm & dampness and treating edema. 3. The effect of ginger is to eliminate blood stasis. So ginger herbal pharmacopuncture can be applied to treating contusion, blood stasis, sprain and gynecologic disease. 4. Ginger can treat myalgia and pain due to wind-damp and have anti-inflammatory effect in pharmacology. So ginger herbal pharmacopuncture can be applied to treating disease of joint, ligament and muscle. 5. Ginger can resolve phlegm and resuscitate. So ginger herbal pharmacopuncture can be applied to treating unconsciousness. But, treating incipient cardiovascular accident, it needs to call your special attention to the danger of blood pressure increase. 6. In pharmacology, ginger is effective for antitumor, antioxidant effects and activating immunocyte. So ginger herbal pharmacopuncture can be applied to treating broadly varieties of tumor and allergic disease.

어머니가 인지한 유아의 식품기호도 형성 요인, 식사 섭취 개선 노력과 식품선택 신념에 관한 연구 (Mothers' Perceptions on Preschool Children's Food Preference, Efforts in Improving Food Intake and Their Beliefs in Food Selection)

  • 정영혜;윤진숙;박동연
    • 대한지역사회영양학회지
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    • 제11권6호
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    • pp.714-724
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    • 2006
  • In an attempt to investigate mothers' perceptions of factors affecting preschool children's food preferences, their policy improving food intake and belief in food selection, in-depth interviews with 30 mothers who had preschool children were conducted in Daegu and Busan. The interviews were tape-recorded and the contents of interviews were analysed by researchers. Most mothers and children liked meats. It was found that children usually disliked vegetables such as onions, carrots, and green onions. Mothers perceived that many factors affected their children's food preferences: mothers' and fathers' food preferences, food offering at meals. mothers' food intake during pregnancy, children's food intake during weaning period, heredity peer pressure, and advertisements on television. Mothers made efforts to improve childrens food intakes in many ways: change of cooking method, emphasizing function of nutrients and food for health, conciliation and enforcement, and comparison to other children. The most affecting belief for mothers in food selection was family members' food preference. Health, balance in nutrient intake degree of food processes food additives, chemicals, convenience, diversity, and economy were also important beliefs to select food. Convenience was especially the primary belief in choosing and preparing children's snacks. Mothers offered frozen dumplings and meat, instant noodles, tuna, and ham for snacks for convenience. These results showed that mothers understood many aspects affecting children's food preference tried to improve children s food intakes and had several beliefs in food selection. We concluded that it is necessary to give information for mothers to make healthy snacks in a short time and chance to learn cooking skills.

저수지 관개논 물수지 및 물질수지 분석 (Nutrient Mass Balance Analysis in the Reservoir Irrigated Rice Paddy Field)

  • 송정헌;강문성;송인홍;박지훈;안지현;장정렬
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2012년도 학술발표회
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    • pp.334-334
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    • 2012
  • 수자원 이용량 중 농업용수 이용량은 약 47 %를 차지하고 있고 전체 논 대비 저수지 관개논 비중은 45 %에 달하고 있어 저수지 관개논의 비점오염배출에 대한 정량적인 평가 및 관리가 요구된다. 논에서의 비점오염배출량은 강우뿐만 아니라 시비 및 물관리 등 영농인자에 의해 영향을 받기 때문에 시기별 지속적인 모니터링이 필요하다. 본 연구의 목적은 저수지 관개논을 대상으로 비점오염 유출입 기작을 종합적으로 모니터링하고, 이를 바탕으로 저수지 관개논에서의 물수지 및 물질수지를 산정하고, 그 결과를 분석/평가하는 데 있다. 본 연구의 대상지구는 이동저수지 하류에 위치한 관개논을 선정하였고, 수문/수질 계측망을 구성하여 모니터링을 수행하였다. 물수지 분석을 위해 강우량, 담수심, 침투량, 관개량, 지표유출량 등을 관측하였고, 증발산량은 Penmann-Monteith 식으로 산정하였다. 물질수지 분석을 위해 시비량, 시비시기, 관개수 및 유출수 수질 등을 조사하였고 토양 및 식물체 성분을 분석하였다. 관개논에서의 지표유출량은 1232.1 mm, 침투량은 111.5 mm, 증발산량은 598.9 mm으로 나타났고, 질소 기준 배출부하량은 28.76 kg/ha, 식물흡수는 120.37 kg/ha의 값을 보였다. 본 연구결과는 관개논에서의 비점오염 주요 관리인자의 상호관련성 및 배출기작을 구명하고, 비점오염배출량 저감을 위한 영농방법개선 방안 수립에 기초자료가 될 것으로 기대된다.

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경북 농촌지역 어린이 대상 영양지수 (Nutrition Quotient) 조사 및 평가 (Evaluation of items for the food behavior checklist and nutrition quotient score on children in rural areas of Gyeongbuk)

  • 유정선;최영선
    • Journal of Nutrition and Health
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    • 제46권5호
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    • pp.427-439
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    • 2013
  • The aim of this study was to determine whether Nutrition Quotient (NQ) for children, which has been developed from data on urban children, can be applied to children in rural areas. A total of 200 children (108 boys and 92 girls) in fifth and sixth grade at three elementary schools in rural areas of Gyeongbuk participated in the survey conducted during June 2012. Questionnaires consisted of items on food intake frequency and dietary behavior. Food intake data were obtained using the 24-hour recall method, and nutrient intake was calculated using the CAN-Pro 4.0 Program. Percentages of children who took less than the estimated average requirement were 76.5%, 49.5%, 45.5%, 33.5%, and 26.0% for calcium, vitamin C, iron, vitamin A, and folate, respectively. Significant associations were observed between intake frequencies of vegetables, kimchi, and fruits, and intake of vitamin C, folate, and dietary fiber. White milk and legumes showed positive correlation with intake of calcium and vitamin A. Eating breakfast, meal regularity, and diverse side dishes showed positive correlation with intake of folate and calcium. The 19 food checklist items could be categorized according to five factors. The mean NQ score of the subjects was 62.0, which was similar to that of urban children, 64.4. NQ score and factor scores for balance, regularity, and practice were significantly lower in children with lower socioeconomic level as compared to those with higher socioeconomic level. Higher NQ score showed an association with increased intake of vitamin B2, folate, vitamin C, and calcium. In conclusion, NQ offers a valuable instrument for evaluation of food habit and dietary quality of rural children as well as urban children, and children with low socioeconomic status should be monitored by testing with NQ checklist before implementation of nutrition programs.

Effect of Customized Fertilizer Application and Soil Properties on Amino Acids Composition in Rice Grain

  • Sung, Jwakyung;Lee, Yejin;Chun, Hyenjung;Ha, Sangkeun;Sonn, Yeonkyu;Lee, Jongsik
    • 한국토양비료학회지
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    • 제48권5호
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    • pp.464-468
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    • 2015
  • Our government has performed to support the nation-wide application of customized fertilizer based on soil-testing results and crop nutrient balance in order to promote the environment-friendly agriculture and to respond the global environment guide-line since 2010. This study was performed at the selected local paddy fields (Hwaseong-si, Uiseong-gun and Miryang-si) with different soil chemical properties in 2012. The contents of amino acids measured showed an increasing trend with fertilization, and glutamic acid was the most abundant amino acid followed by aspartic acid, leucine and alanine. However, valine, isoleusine, tyrosine and lysine were not significantly affected by fertilization. The significant differences in grain N, expressed as a crude protein, and amino acids dose was observed between experimental sites (p<0.001), treatments (p<0.01 to 0.001) and interaction of both factors (p<0.01 to 0.001). In our experiment the following order of carbon skeleton backbones to produce amino acids was observed irrespective of experiment sites and fertilization: ${\alpha}$-ketoglutarate > oxalate > pyruvate > 3-phosphoglycerate > phosphoenolpyruvate. In conclusion, customized fertilizer had no difference in amino acids compared to the conventional-NPK practice which was higher than in no fertilization, and also the normal paddy represented slightly higher amino acids compared to the reclaimed. Further study based on the present results is required to investigate what is main factor to amino acids between genetic and environmental factors.

당종해(唐宗海)의 육경(六經) 기화학설(氣化學說)에 대한 연구(硏究) - 『상한론천주보정(傷寒論淺注補正)』을 중심으로 - (A Study on Tang Zong-hai's Theory of Qi Transformation within the Six Meridians - focussed on 『Shanghanlun Qianzhubuzheng』 -)

  • 이상협
    • 대한한의학원전학회지
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    • 제32권4호
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    • pp.67-90
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    • 2019
  • Objectives : This study aims to summarize Tang Zong-hai's Qi transformation theory of the Six meridians through his book "Shanghanlun Qianzhubuzheng傷寒論淺注補正" where he integrated Western anatomy with the Qi transformation theory of East Asian Medicine to interpret Zhang Zhong Jing's "Shanghanlun(傷寒論)". The objective is to assist clinical application. Methods : Focusing on the contents of disease of the six meridians in the "傷寒論淺注補正", Tang's theories on the function of Zangfu(臟腑), Opening-Closing-Pivot(關闔樞), Inter-communication of Zangfu(臟腑相通), the Twelve Meridians(十二經脈) from his other publication "中西匯通醫經精義" were examined and related to in the process of explaining Qi transformation theory in detail. Results : 1. The Qi transformation function of the Taiyang meridian is related to "膀胱者, 氣化則能出" where the Small Intestine and Bladder inter-communicate. 2. The Qi transformation function of the Yangming meridian is related to the control of dryness and dampness through the Qi transformation of "陽明不從標本, 從乎中." 3. The Qi transformation function of the Shaoyang meridian is related to the Life-Fire function of the Triple Energizer-Gallbladder-Pericardium coalition through "少陽屬腎." 4. The Qi transformation function of the Taiyang meridian refers to the Heart Fire nurturing the Spleen Earth by creating 膏油 through veins. 5. The Qi transformation function of the Shaoyin meridian is related to the controlling of the Nutrient Qi(營氣) and Defense Qi(衛氣) through '心主血脈, 腎主元氣.' 6. The Qi transformation function of the Jueyin meridian is related to the ability of 和風 which results from '陰盡陽生' to harmonize and control the balance of Water Coldness(水冷) and Fire Heat(火熱). Conclusions : Tang's Qi Transformation Theory of the Six Meridians is his key theory explained from the perspective of Qi transformation of disease in the six meridians of "Shanghanlun", closely related to basic theories such as theory of Zang form(臟象學說), Opening-Closing-Pivot(關闔樞), Inter-communication of Zangfu(臟腑相通), the Twelve Meridians(十二經脈) of East Asian Medicine.

우리 국민의 총 지방 및 지방산 일상 섭취량 추정 및 평가: 2019 - 2021년 국민건강영양조사 자료를 활용한 단면조사연구 (Estimating and evaluating usual total fat and fatty acid intake in the Korean population using data from the 2019-2021 Korea National Health and Nutrition Examination Surveys: a cross-sectional study)

  • 이경윤;김동우
    • 대한지역사회영양학회지
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    • 제28권5호
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    • pp.414-422
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    • 2023
  • Objectives: This study evaluated usual dietary intakes of total fat and fatty acids among the Korean population based on the revised Dietary Reference Intakes for Koreans 2020 (2020 KDRIs). Methods: This study utilized data from the eighth Korea National Health and Nutrition Examination Survey (KNHANES 2019-2021). We included 18,895 individuals aged 1 year and above whose 1-day 24-hour dietary recall data were available. To calculate the external variability using the National Cancer Institute 1-day method, data from the U.S. NHANES 2017-March 2020 Pre-pandemic dataset were employed. The total fat and fatty acid intake were evaluated based on the Acceptable Macronutrient Distribution Ranges (AMDRs) and Adequate intake (AI) of 2020 KDRIs for each sex and age groups. Results: Approximately 86% of the Korean population obtained an adequate amount of energy from total fat consumption (within the AMDRs), indicating an appropriate level of intake. However, the percentage of individuals consuming saturated fatty acids below the AMDR was low, with only 12% among those under 19 years of age and 52% aged 19 years and older. On a positive note, approximately 70% of the population showed adequate consumption of essential fatty acids, exceeding the AI. Nevertheless, monitoring the intake ratio of omega 3 (n-3) to omega 6 (n-6) fatty acids is essential to ensure an optimum balance. Conclusions: This study explored the possibility of estimating the distribution of nutrient intake in a population by applying the external variability ratio. Therefore, if future KNHANES conduct multiple 24-hour recalls every few years-similar to the U.S. NHANES-even for a subset of participants, this may aid in the accurate assessment of the nutritional status of the population.

Oral Administration of Alcohol-Tolerant Lactic Acid Bacteria Alleviates Blood Alcohol Concentration and Ethanol-Induced Liver Damage in Rodents

  • Misun Yun;Hee Eun Jo;Namhee Kim;Hyo Kyeong Park;Young Seo Jang;Ga Hee Choi;Ha Eun Jo;Jeong Hyun Seo;Ji Ye Mok;Sang Min Park;Hak-Jong Choi
    • Journal of Microbiology and Biotechnology
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    • 제34권4호
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    • pp.838-845
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    • 2024
  • Excessive alcohol consumption can have serious negative consequences on health, including addiction, liver damage, and other long-term effects. The causes of hangovers include dehydration, alcohol and alcohol metabolite toxicity, and nutrient deficiency due to absorption disorders. Additionally, alcohol consumption can slow reaction times, making it more difficult to rapidly respond to situations that require quick thinking. Exposure to a large amount of ethanol can also negatively affect a person's righting reflex and balance. In this study, we evaluated the potential of lactic acid bacteria (LAB) to alleviate alcohol-induced effects and behavioral responses. Two LAB strains isolated from kimchi, Levilactobacillus brevis WiKim0168 and Leuconostoc mesenteroides WiKim0172, were selected for their ethanol tolerance and potential to alleviate hangover symptoms. Enzyme activity assays for alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) were then conducted to evaluate the role of these bacteria in alcohol metabolism. Through in vitro and in vivo studies, these strains were assessed for their ability to reduce blood alcohol concentrations and protect against alcohol-induced liver damage. The results indicated that these LAB strains possess significant ethanol tolerance and elevate ADH and ALDH activities. LAB administration remarkably reduced blood alcohol levels in rats after excessive alcohol consumption. Moreover, the LAB strains showed hepatoprotective effects and enhanced behavioral outcomes, highlighting their potential as probiotics for counteracting the adverse effects of alcohol consumption. These findings support the development of functional foods incorporating LAB strains that can mediate behavioral improvements following alcohol intake.