• Title/Summary/Keyword: Complementary area

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Estimating Evapotranspiration with the Complementary Relationship at Fluxnet Sites Over Asia (아시아 Fluxnet 자료를 활용한 보완관계 기반 증발산량 추정)

  • Seo, Hocheol;Kim, Jeongbin;Park, Hyesun;Kim, Yeonjoo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.37 no.2
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    • pp.303-310
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    • 2017
  • Evapotranspiration is a significant hydrologic quantity for understanding the amount of available water resource evaluation, water balance analysis, water circulation and energy circulation. Various methods have been developed for estimating the evapotranspiration using data observed at meteorological observatories. Especially, the focus of methods has been on the complementary relationship that the actual evapotranspiration is equal to the difference between the twice of evapotranspiration in the wet condition and the potential evapotranspiration. The Granger and Gary (GG) method is an empirical formula that can be used to estimate the evapotranspiration using only empirical parameters based on the complementary relationship and using only the net radiation and temperature of the region. In this study, we compared the evapotranspiration data observed at 10 sites in Asia within the dataset of FLUXNET2015, with the evapotranspiration calculated by GG method. The evapotranspiration in inland area was estimated more accurately than that of coastal area. Simulated Annealing (SA) was used for the coastal area to modify the parameters. Using the modified GG method, we could improve the statistics such as root mean square error, the coefficient of determination ($R^2$), and the mean absolute ${\mid}BIAS{\mid}$ of the evapotranspiration estimation in coastal area.

Estimation of Surface Color with Use of Subjective Feeling: On the Influence of Contrast by Complementary Color

  • Sakamoto, Kazuyoshi;Wada, Mitsuyoshi;Min, Byung-Chan
    • Science of Emotion and Sensibility
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    • v.5 no.2
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    • pp.73-78
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    • 2002
  • The unique colors of paper, that is, blue, green, red, and yellow were used in the estimation of color from the subjective feeling. The monochrome with unique color or the unique color surrounded with the background color was presented. subject gazed the monochrome or the unique color, which was tailed target rotor. The target and background color were the complementary color each other. The various ratios of the area of gazed color and background were taken. Subject answered the level of subjective feeling consisted of pair of adjective items for unique color presented. With the use of the subjective feeling for the target color presented, the estimation of the unique color was cai\ulcornerlied out due to Fuzzy theory and neural networks. The results of color difference between unique color presented and the estimated color gave very small value for the case without background, while the results of the case with background color depended on the ratio of area of presented color and background color till the ration of 2:1, The relation showed the Kirschman's law, The color difference saturated In the increase of area of background with the ratio more than 2:1.

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Estimation of surface color with use of subjective feeling: On the influence of contrast by complementary color

  • Sakamoto, Kazuyoshi;Wada, Mitsuyoshi;Min, Byung-Chan
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2002.05a
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    • pp.261-265
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    • 2002
  • The unique colors of paper, that is, blue, green, red, and yellow were used in the estimation of color from the subjective feeling. The monochrome with unique color or the unique color surrounded with the background color was presented. Subject gazed the monochrome or the unique color, which was called target color. The target and background color were the complementary color each other. The various ratios of the area of gazed color and background were taken. Subject answered the level of subjective feeling consisted of pair of adjective items for unique color presented. With the use of the subjective feeling fer the target color presented, the estimation of the unique color was carried out due to Fuzzy theory and neural networks. The results of color difference between unique color presented and the estimated color gave very small value for the case without background, while the results of the case with background color depended on the ratio of area of presented color and background color till the ration of 2:1, The relation showed the Kirschman's law. The color difference saturated in the increase of area of background with the ratio more than 2:1.

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Research Trends in Complementary Medical Therapy for the Common Cold (감기에 대한 보완 의학적 연구 동향 - Pubmed를 중심으로 -)

  • Lim, Do-Hee;Hwang, Ji-Ho;Yang, Soo-Young;Shim, Jae-Chul;Chae, Eun-Young;Park, Yang-Chun
    • The Journal of Korean Medicine
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    • v.27 no.3 s.67
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    • pp.151-168
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    • 2006
  • Objectives: To help the Oriental medicine clinical studies for the common cold treatment, this study analyzed the tendency of research into complementary medicine on the common cold recently published in PubMed. Methods: This study analyzed 26 research papers on complementary medicine on the common cold published in PubMed Over the past 10 years. It measured annually and for each country the number of papers published, the number of subjects, the period of research, the area of trial, the method of study, the objective of study, and intervention, respectively and intervention, the objective of study, and the result of trials overall. Results: There were research papers concerning treatment, prevention, safety of herbal medicine, inducement, and improvement of symptoms of the common cold in the study objective the most among them concerned treatment of the common cold. There were more positive results compared to negative results for treatment and prevention. The results for safety and symptom improvement were positive, while the results for the inducement were indeterminate. There were research papers about using food and medicine, acupuncture, hydrotherapy, and cold exposure in intervention the most among them were about using food and medicine. The food and medicine interventions were Echinacea preparations, vitamins, zinc preparations, Baptisia, Thuja, the root of North American ginseng, probiotic bacteria, troxerutin, garlic, Andrographis paniculata, and caffeine. The use of Echinacea preparations was the most frequent among them. Conclusions: Recent research results of complementary medicine on the common cold were more positive than negative.

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Complementary and Alternative Medicine for Oral Health : a Literature Review of Randomized Controlled Clinical Trials (구강건강에 이용되는 보완대체의학 치료: 무작위대조임상연구를 통한 문헌적 고찰)

  • Kim, Da-Hee;Choi, Gwang-Ho;Hwang, Eui-Hyoung;Heo, Kwang-Ho;Kim, Yong-Deok;Shin, Byung-Cheul
    • Journal of Society of Preventive Korean Medicine
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    • v.18 no.3
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    • pp.23-39
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    • 2014
  • Objective : This review aims at analyzing Complementary and Alternative Medicine (CAM) therapies, using for oral health to know current use of CAM in dental area by analyzing randomized controlled clinical trials (RCTs). Method : We searched the following 6 electronic databases until 1 July 2014. : Pubmed, Medline, Embase, Allied and Complementary Medicine Database(AMED), Cumulative Index to Nursing and Allied Health Literature(CINAHL), the Cochrane Library. We included parallel RCTs and cross-over RCTs that assessed the efficacy of CAM regardless of blinding and language. Results : A total of 154 RCT articles were included. There were 2-arm parallel study design(69.5%), 3-arm parallel study design(20.8%), 4-arm parallel study design(4.5%) and Cross-over design(5.2%). Complementary and alternative medicine RCTs in oral health tend to increase in the early-2000s and in the mid-2010s. In addition, 154 citations were classified according to diseases and interventions that categorized Natural Products studies(68.2%), Mind and Body Practices studies(31.8%). We classified in detail that vitamin and mineral therapies(29.9%), dietary supplements(24.7%), acupuncture(23.3%), Herbal medicine(13.6%), homeopathy (2.6%), energy therapies(2.6%), Massage(1.9%), biofeedback(0.6%), traditional medicine(0.6%). Conclusion : Increasing publications and diverse interventions regarding CAM for oral health is observed by analyzing RCTs from the literature review. Further studies are needed to be performed as systematic reviews to verify their effectiveness and the research to inquire into side effect.

Prevalence and Predictors of Complementary Feeding Practices Among Children Aged 6-23 Months in Indonesia

  • Siti, Nurokhmah;Lucinda, Middleton;Aryono, Hendarto
    • Journal of Preventive Medicine and Public Health
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    • v.55 no.6
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    • pp.549-558
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    • 2022
  • Objectives: Poor complementary feeding practices have consistently contributed to the burden of child undernutrition in Indonesia. This study aimed to estimate the prevalence and predictors of the time of the introduction of solid, semi-solid, and soft foods (ISSSF), minimum dietary diversity (MDD), minimum meal frequency (MMF), and minimum acceptable diet (MAD). Methods: We analyzed 4804 last-born infants aged 6-23 months from the 2017 Indonesia Demographic and Health Survey, which employed multistage cluster random sampling. The outcomes were calculated based on the 2021 World Health Organization/United Nations Children's Fund guidelines. The predictors of the 4 complementary feeding indicators were assessed using multivariate Poisson regression with robust variance adjusting for potential confounders and study design. Results: The prevalence of ISSSF, MDD, MMF, and MAD was 86.1%, 54.3%, 71.8%, and 37.6%, respectively, with younger children less likely to meet 3 out of the 4 outcomes. Parental education, the presence of a birth attendant, and maternal media consumption were among the predictors of MDD and MAD. Children from families with higher income were more likely to meet MDD than those from low-income households (adjusted prevalence ratio [aPR], 1.16; 95% confidence interval [CI], 1.05 to 1.28). Living in an urban area was positively associated with MMF (aPR, 1.09; 95% CI, 1.04 to 1.15) and MAD (aPR, 1.12; 95% CI 1.02 to 1.24). In eastern regions, the prevalence of children achieving MDD and MAD was lower than in those living in Java and Bali. Conclusions: It is crucial that more attention and efforts are made to improve the recommended practices throughout Indonesia, since the prevalence of adequate complementary feeding practices remains low.

Research Trend Analysis of the Prevalence of Complementary and Alternative Medicine in Korea (국내 보완대체의학 사용 실태조사 연구의 동향 분석)

  • Kim, Sul-Gi;Lee, Sang-Hun;Seo, Hyun-Ju;Baek, Seung-Min;Choi, Sun-Mi
    • The Journal of Korean Medicine
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    • v.33 no.1
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    • pp.24-41
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    • 2012
  • Objectives: This study reviewed research trends concerning the prevalence of complementary and alternative medicine (CAM) use and to suggest future research directions appropriate to medical circumstances in Korea. Methods: We searched for surveys of CAM use in 8 databases including 6 Korean databases, Ovid MEDLINE, and the CINAHL electronic database. Three independent reviewers working in pairs screened titles and abstracts of articles for eligibility. Full text was retrieved in case of disagreement on the eligibility. The main analysis targets included survey researcher's affiliation, terminology used in the title, study subject, definition of CAM, classifications of CAM modalities, and the area assortment of CAM and traditional Korean medicine (TKM). Results: 92 articles were included for analysis. The major constituent of affiliation was doctors (53%). According to years, study subjects were diversified to a large range of diseases. Since 2003, terminology is absorbed to use CAM. But actually, the most commonly used definition in the research was comprehensive such as "not generally considered part of major medicine" (55.4%) and the most used classification of CAM was self-criteria (61.9%). As for area assortment of CAM and TKM, many therapies exist in a gray zone between CAM and TKM. Conclusions: Standardized definition and classification criteria about CAM fit to the Korean healthcare system have not yet developed. For traditional Korean medicine academia, more concern should be paid to establishing appropriate development of definitions and classification criteria.

Determination of complementary surveying area for precise geoid development in Korea (정밀지오이드 구축을 위한 보완측정지역 선정)

  • Lee, Bo-Mi;Lee, Ji-Sun;Kwon, Jay-Hyoun
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2009.04a
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    • pp.35-39
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    • 2009
  • The equal distribution of the gravity as well as the topographic data is an essential factor in the precision geoid determination. In this study, the area where needs the supplementary gravity survey is assigned through a simulation to build the 5cm level geoid. Based on the current distribution of the gravity data which results in the 8cm level of the precision over all, we extract the area which shows the errors larger than 30 cm. Then, the area is assumed to be filled with gravity data with 2km interval which is turned out to be successfully improving the overall accuracy up to 5cm. Therefore, it is recommended that the supplementary gravity survey should be conducted in mountainous area such as eastern and mid-northern part of Kangwon-Do to achieve the 5cm accuracy on the geoid.

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Evaluation of the Evapotranspiration Models in The SLURP Hydrological Model (SLURP모형에서 증발산 모형의 평가)

  • Kim, Byung-Sik;Cho, Doo Chan;Kim, Hung-Soo;Seoh, Byung-Ha
    • Proceedings of the Korea Water Resources Association Conference
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    • 2004.05b
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    • pp.178-183
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    • 2004
  • Hydrological models simulate the land phase component of the water cycle and provide a mechanism for evaluating the effects of climatic variation and change on water resources. Evapotranspiration(ET) is a critical process within hydrological models. This study evaluates five different methods for estimating ET in the SLURP(Semi-distrubuted Land Use Runoff Process)model, in the Yongdam basin. The five ET methods were the FAO Penman-Monteith, Motorn CRAE(Complementary Relationship Area Evapotranspiration), the Spittlehouse-Black, the Granger, the Linarce model. We evaluated the five ET models, based on the ability of SLURP model to simulate daily streamflow. and How the five ET methods influence the sensitivity of simulated streamflow to changes in key model parameters and validation SLURP independently for each ET methods.

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The Review of the Direction of Improvement of Oriental Medicine (한의학의 발전 방향 검토)

  • Shin, Gil Cho
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.18 no.1
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    • pp.1-11
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    • 2017
  • It is difficult to combine oriental and western medicine. Each medicine has a different academic background, perspective on the world, and studying methodology. The claim that two paradigms can not be combined is not obtained from an actual verification, but this means it is so hard to combine two medicines having different backgrounds. The amalgamation of oriental and western medicine should be phased in on the basis of the continuous reciprocal understanding and commitment. First, the strength and weakness of each medicine over the treatment and research are required to be identified. Then, a few complementary areas can be chosen enabling a trial of fusion on a small scale. A cycle of problem solving and a new research can be set by analyzing research results obtained through the implementation over a period of time. In other words, the researchers of oriental and western medicine should repeat a continuous and gradual complementary research process by identifying issues to be improved and complemented through a consensus. Once the methodology obtained through the process of problem solving and proficient implementation is established in a stable condition, a method to widen the fusion area by expanding the operating area and implementation method can be chosen. However, the integral system of oriental medicine shouldn't be substituted by mechanical idea or reductionism. What should be done primarily for oriental medicine is to objectify things through quantification. In particular, the oriental treatment should accept the microscopic diagnosis to determine the structure and observe the biochemical change.

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