Ongoing Process of the Integration of Kindergarten and Childcare of Korea

Won-young Rhee,Myung-ha Kim 환태평양유아교육연구학회 2019 Asia-Pacific journal of research in early childhoo Vol.13 No.2

The integrating effort, which has been tried in Korea, by the governments of four presidents from 1998 to 2017 has been described in this study. The integration of this study means uniting kindergartens and child care centers under one Ministry. The purpose is to clarify what kinds of problems the divided system could cause young children and what has been done. The analysis of documents such as records of the Blue House (president’s office), the Prime Minister’s Office, Ministries, and research articles in terms of integration was applied. Research found that problems of the divided system of kindergarten and child care center in Korea can be placed in three categories – inefficient administration governance, duplicated budget allocation and its inefficiency, and quality difference of early education and care for the same age group. Integration was started first by the Minister of the Ministry of Gender Equality (MOGE), Chi Eun-hee of the Kim Dae-jung government in 2003. The Roh Moo-hyun government moved child care administration from the Ministry of Health and Welfare (MOHW) to MOGE in 2004, but the Lee Myung-bak government moved it back to the MOHW in 2008. The MOHW vigorously tried to integrate the two institutes under it as soon as they had it back, but failed. The Ministry of Education (MOE) of the Lee Myung-bak government integrated the two national curriculums and named it NURI Curriculum, which was applied to five-year-olds first in 2012 and then to children of three- and four-year-olds in 2013. At present, children attending either kindergartens or child-care-centers benefit from Local Government Financial Assistance Grants. Lastly, the Park Geun-hye government decided to continue the Lee government’s policies, NURI curriculum, and free education with the Local Government Financial Assistance Grant. In addition to this, her government made an integration agenda in 2014, which consisted of 10 projects. 8 out of 10 projects had been achieved by 2015, and two projects, integrating teacher education and certificate system of both institutes, and uniting two institutes into a Ministry are remain to be achieved.

Urinary tissue inhibitor of metalloproteinase-2 and insulin-like growth factor-binding protein 7 as biomarkers of patients with established acute kidney injury

( Won Yong Cho ),( Sung Yoon Lim ),( Ji Hyun Yang ),( Se Won Oh ),( Myung-gyu Kim ),( Sang-kyung Jo ) 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.3

Background/Aims: Urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) have been recently discovered and validated as sensitive biomarkers that can predict stage 2 or 3 acute kidney injury (AKI) development in high-risk patients. We aimed to assess whether these biomarkers could predict adverse outcomes and renal recovery in established AKI patients. Methods: This was a single-center study prospectively enrolling 124 patients diagnosed with AKI. TIMP-2, IGFBP7, neutrophil gelatinase-associated lipocalin (NGAL), and kidney injury molecule 1 (KIM-1) levels were measured at the time of diagnosis and the predictive performance of short-term outcomes and renal recovery was assessed. Results: Patients were divided into 4 quartiles according to the initial urinary TIMP-2/IGFBP7 levels. Stage 3 AKI (odds ratio [OR], 17.86), classified by the Kidney Disease Improving Global Outcomes (KDIGO), as well as the third and fourth quartiles of TIMP-2/IGFBP7 (OR, 5.75 and 44.98, respectively), were found to be independent predictors of renal replacement therapy at the time of AKI diagnosis. In addition, KDIGO stage 3 AKI (OR, 2.468) or the third of fourth quartiles of urinary TIMP-2/IGFBP7 (OR, 1.896 and 3.622, respectively) were also found to be useful in predicting nonrecovery of renal function. In a separate analysis of patients with renal recovery at discharge, initial urinary TIMP-2/IGFBP7 or urinary IGFBP7 at discharge could also predict new-onset or progressive chronic kidney disease (CKD). Conclusions: In AKI patients, urine TIMP-2/IGFBP7 could serve as a biomarker for predicting adverse outcomes, renal recovery, or the development and progression of CKD.

Modeling of a Virtual Three-dimensional Plain Weave Fabric - A Closely Packed Multifilament Yam Model -

( Kim,Jong-Jun ),( Jeon,Dong-Won ),( Yun,Myung-Hui ) 한국패션비즈니스학회 2003 패션 비즈니스 Vol.7 No.6

국내 정형외과 의료소송 현황 파악

이원(Won Lee),이미진(Mi Jin Lee),김용민(Yong Min Kim),우찬명(Chan Myung Woo),김소윤(So Yoon Kim),김양수(Yang-Soo Kim) 대한정형외과학회 2016 대한정형외과학회지 Vol.51 No.3

목적: 국내 정형외과 관련 의료소송 판결문의 분석을 통하여 정형외과 의료소송의 현황과 원인이 된 과정을 파악하고자 함이다. 대상 및 방법: 소송시작이 2005년부터 2010년인 정형외과 의료소송 판결문 341건을 대상으로 하여 빈도분석을 실시하였다. 결과: 사건 발생 시점에서 소송 종결 시점까지의 평균 소요기간은 4.22년이었다. 의료소송의 원인이 된 과정은 수술이 46.3%였고, 수술의 종류는 척추 수술이 가장 많았다. 사고의 결과는 장애가 가장 많았고, 최종심 결과는 원고일부승이 40.5%, 원고패(기각)가 34.3%였다. 감염은 전체 중 26.1%에서 발생하였고, 손해배상 청구금액은 평균 181,998,036원이었으며 인용금액은 평균 58,897,161원이었다. 결론: 정형외과 의료소송으로 이어진 의료사고의 주요 원인 과정은 수술이 가장 많았고, 그 중에서도 척추 수술이 가장 많았다. 추후 의료사고의 근본 원인분석을 통해 의료사고를 줄이고 재발을 방지하기 위한 후속 연구가 이루어져야 할 것이다. Purpose: Through the analysis of orthopedics lawsuit rulings, the purpose of this study is to understand the current trends of medical lawsuits in orthopedics in Korea. Materials and Methods: An analysis of medical lawsuits in orthopedics was conducted. As the study method, a quantitative analysis was performed on 341 cases. Results: The average period of lawsuits, from the occurrence of the medical accident to end of the ruling, took an average of 4.22 years. The most frequent procedure that was the main cause of the medical accidents was surgery, at 46.3%. When surgery is the main procedure that caused the medical accidents, the result of examining the types of surgeries showed that spine surgery had the highest percentage. For the outcome of the accident, the highest number of cases resulted in disability and for the final court outcome, 40.5% ruled partially in favor of the plaintiff (the patient) with acknowledgement of only the damage incurred due to medical error of the total sum claimed, and dismissal of the claim made by the plaintiff (patient) accounted for 34.3%; 26.1% of cases develop infection. For the amount of claim for damage, the average amount of claim was 181,998,036 won; in the judgement amount, the average amount of judgement was 58,897,161 won. Conclusion: The most frequent procedure in orthopedics was surgery and spine surgery comprised a large proportion of these surgeries. Future studies to determine root causes of medical accidents should be conducted to reduce medical lawsuits and to plan against the repeating of medical accidents.

전기 방열기가 국화재배온실의 난방에 미치는 영향

서원명 ( Won Myung Suh ),임재운 ( Jae Woon Leem ),김영주 ( Young Ju Kim ),민영봉 ( Young Bong Min ),김현태 ( Hyeon Tae Kim ),허무룡 ( Moo Ryong Huh ),윤용철 ( Yong Cheol Yoon ) 경상대학교 농업생명과학연구원(구 경상대학교 농업자원이용연구소) 2010 농업생명과학연구 Vol.44 No.4

경상대학교 교내에 설치되어 있는 1-2W형 온실을 대상으로 전기 방열기를 이용하여 국화 재배온실의 난방효과를 검토한 결과는 다음과 같다. 실험기간동안 최고, 평균 및 최저 외기온은 각각 -3.8~21.3℃, -5.2~16.1℃ 및 -12.5~14.4℃ 정도의 범위로 나타났으며, 온실 내외의 평균상대습도 각각 43.5~98.6% 및 35.2~100%로 나타났다. 12월 중순부터 2월 상순까지 최저 외기온은 대략 -5.0~-10.0℃ 전후로 나타나 진주기상대의 최근 자료와 비교하면 상대적으로 최저기온이 낮게 나타나는 경향이 있었다. 야간의 경우, 방열기 직하부의 엽온이 방열기 중간 지점에서 측정한 엽온 보다 크게 2~3℃정도 높게 나타나거나 또는 미미하지만 약간 높게 나타나는 경향이 있었다. 근권부의 경우, 직하부나 중간 지점에서의 온도 차이는 거의 없는 것으로 나타났고, 근권부의 최고온도와 기타 최고 온도의 발생 시점을 보면, 약 2시간정도의 지체현상이 있음을 알 수 있었다. 그리고 실험기간동안 난방에 소요된 총 소비전력량, 공급에너지 및 총 난방비는 각각 2,800kWh, 2,408,000kcal 및 112,000won 정도였다. 화석연료인 경유로 난방할 경우, 총 난방비는 224,500won 정도였다. 방열기를 이용하여 난방할 경우, 난방비를 약 50% 정도 줄일 수 있을 것으로 판단되었다. An analysis in heating effects of an electric radiator located in a 1-2W type chrysanthemum (3 cultivars) cultivation greenhouse installed in Gyeongsang National University drew the following conclusions. During the experiment period, the highest, average, and the lowest outside temperatures were in the ranges of -3.8~21.3℃, -5.2~16.1℃ and -12.5~14.4℃, respectively, and the average relative humidity inside and outside the greenhouses were in the ranges of 43.5~98.6% and 35.2~100%, respectively. From mid-December to early February, the lowest outside temperature was recorded as approximately -5.0~-10.0℃, which showed that it tended to be relatively lower than the temperatures recorded at the Jinju Meteorological Observatory. During the night, the leaf temperature measured directly under the radiator tended to be higher by 2~3℃ than that those at the middle point of the radiator, or higher by anegligible amount. In the case of root zone temperature, it was found that there was almost no difference between temperatures of the part directly under and the middle point, and the time when the highest temperature of root zone and other highest temperatures took place showed that there was about a 2-hour delay phenomenon. The total electricity consumption, energy supply and total heating cost during the experiment period were 2,800 kWh, 2,408,000 kcal and 112,000 won, respectively. When diesel, a kind of fossil fuel, was used as heating oil, the total heating cost was around 224,500 won. It was estimated that the total heating cost could be reduced by around 50% if a radiator was used.

HPLC-ICP/MS 와 ICP/MS를 이용한 FAPAS 07187 쌀의 총비소, 무기비소, 카드뮴 측정

노현명 ( Hyun Myung Noh ),김지영 ( Ji Young Kim ),김원일 ( Won Il Kim ),( Anitha Kunhikrishnan ),김민지 ( Min Ji Kim12 ),김경진 ( Gyeong Jin Kim ),박기문 ( Ki Moon Park ),류지혁 ( Ji Hyock Yoo ),김두호 ( Doo Ho Kim ),이영자 ( Y 한국환경농학회 2013 한국환경농학회 학술대회집 Vol.2013 No.-

Metal (loid)s such as environmental contaminants affect food safety. Metal (loid)s exist trace extremely in agriculture products. Therefore it is important to analyze accurately about trace these metals. High resolution techniques and quality controls are needed to analyze these materials. In order to achieve quality results, standardized methods and techniques are required. So ISO(International Organization for Standardization) of laboratory proficiency testing is determination of laboratory testing performance by means of inter-laboratory comparison. The values have been derived as a consensus of a number of laboratories using a variety of methods. Proficiency tests were applied to analyze the metal(loid)s [inorganic arsenic (As), total As and cadmium (Cd)] in powdered rice FAPAS 07187 (Food Analysis Performance Assessment Scheme; February-April 2013). The rice powder sample was extracted with 1% HNO3 for inorganic As for microwave-assisted extraction using water at 95℃ for 90 min and their analysis by HPLC/ICPMS. Also, HNO3 for total As and Cd using microwave-assisted extraction using at 200℃ for 50 mins and analysis by ICP/MS. Validation check was performed for accuracy using CRM (NMIJ CRM 7503-a) for inorganic As, and CRM (IRMM-Rice CRM) for total arsenic and cadmium. The result were satisfactory. FAPAS 07187 the z-scores of inorganic As, total As and Cd in powdered rice were-1.8,-0.9 and 0.2(lzl<2, respectively).

Characteristics of the Germline <em>MEN1</em> Mutations in Korea: A Literature Review

Seong Cheol Lee,Jun Won Min,You-Me Kim1,Myung-Chul Chang 대한갑상선-내분비외과학회 2014 The Koreran journal of Endocrine Surgery Vol.14 No.1

Purpose: Multiple endocrine neoplasia type 1 (MEN-1) is an autosomal dominant disease caused by the <em>MEN1</em> germline mutation. We reviewed previous reports in order to sum-marize the characteristics of germline <em>MEN1</em> mutation in Korea.Methods: We retrieved the relevant literature regarding <em>MEN1</em> germline mutation in Korea using the Pubmed (<a href="http://www.pubmed.org/">http://www.pubmed.org/</a>) and Koreamed (<a href="http://www.koreamed.org/">http://www.koreamed.org/</a>) databases from 2000 to 2012. We evaluated the pedigree of the patients in order to exclude the same, repeated families. We collected all data on the types of mutations and clinical characteristics.Results: There were nine studies with 12 cases of <em>MEN1</em> mutations in Korea. Two cases were sporadic MEN-1. C.196_200dupAGCCC was reported in three families. There were six cases of frameshift mutation, three cases of missense mutation, two cases of nonsense mutation, and one case of splice site mutation. Five mutations were novel mutations not previously reported.Conclusion: We summarized the characteristics of germline <em>MEN1</em> mutations in Korea. Genetic testing of <em>MEN1</em> is rare in Korea; however, it will be useful in preclinical diagnosis and genetic counseling.

뜸요법과 세라밴드운동이 퇴행성 골관절염 노인의 신체적, 심리적 변수에 미치는 효과

한상숙 ( Sang Sook Han ),김원옥 ( Won Oak Kim ),김연정 ( Yeon Jung Kim ),백용현 ( Yong Hyun Back ),이명희 ( Myung Hee Lee ) 경희대학교 동서의학연구소 2008 동서간호학연구지 Vol.14 No.2

본 연구는 퇴행성 골관절염 노인을 대상으로 뜸요법과 세라 밴드 운동을 실시한 후 신체적 심리적 변수에 미치는 효과를 살펴보고자 실시하았다. 통증, 피로,우울은 뜸요법과 세라밴드운동 실시 후에 감소하였고, 유연성 측정으로 무릎각도, 족 배굴곡, 족저굴곡은 증가하였다. 따라서 뜸요법과 세라밴드 운동의 효과를 중심으로 논의하고자 한다. 실제적으로 뜸자극이 통증을 감소시키는 기전이 명확이 밝혀지지는 않았지만 뜸요법은 지각신경(知覺神經)의항분(亢憤)에따라 지각이 과민하고 통증이 있는 경우나 자율신경(自律神經)의 항분에 의해 발생하는 해장기관의 이상 시에 억제회선(抑制回善)하는 억제(抑制), 제지(制止), 진통(鎭痛) 등의 작용이 있다 (Chiba, Nakamsimshi& chichibu, 1997; East-West Nursing Research Institute1 2000). 뜸요법 후 자궁적 출술한 여성의 냉증과 통증이 감소하였고(Shin et al., 2001), 여대생의 생리통과 월경곤랑증이 감소(Kim&Cho,2001;Lee, 2004)한 것으로 나타나고 있는데, 이는 뜸요법의 작용인온경(溫經藥), 산한지통(散寒止痛),제습지양(除濕 止痒)의 효과로 설명할 수 있다. 즉 뜸여법은 혈을 따뜻하게 하여 한사(寒邪)를 ,제거하고 기혈을 잘 통하게 하여 어혈을 풀고 진통을 감소시킨다. 뜸요범은 통각신경의 흥분을 억제하는 작용을 하고 피가 잘 돌게 하며 말초신경을 자극하여 아픈 자리의 유해물질을 없애기 때문에 아픔을 멈추게 하며(Choi, 1993), 국소적인 근육의 긴장과 혈관의 긴장을 풀어줌으로써 혈액의 혈액의 흐름이 원활해지고 피로불질이나 통증을 재는 물질을 분해시켜 버린다(Kim, 1996). Chun 등(2003)은 퇴행성 관절염 노인의 경우 나이, 동통, 일상생활의존도를 포함한 대상자 특성이 우울에 영향을 미친다고 보고하고 있다 따라서 뜸요법과 세라밴드 운동은 퇴행성 골관절염 노인의 통증, 피로, 우울 점수를 감소시킴을 확인 할 수 있었다. 뜸요법은 상체에 약한 자극을 가하여 지각, 운동, 자율, 신경의 기능이 약화 되었을 때 이를 움직일 수 있도록 하는 항분작용(亢奮作用)이 있으며, 면역작용(免疫作用)으로는 뜸요법 시 화상독(火傷毒) “히스토키신``이 발생하여 이정 단백체에 의해 항체가 생산되어 변역반응을 일으키며 백혈구의 식균작용을 항분(亢奮)시켜준다(east-West Nursing Research Institute, 2000; Yamashita, Ichiman, & Tanno, 2001). 퇴행선 골간절염 환자의 주증상인 무릎 관절의 변형과 부종은 관절가종범위가 감소되고 통증을 유발하는 요인이다. Choi(2003)는 편마비가 동반된 상지부종의 감소와 함께 상지 운동능력이 향상된 것을 확인 하였다. 이는 퇴행성 골관절염 노인의 경우 뜸요법은 혈행과 신진대사를 촉진시켜 체액의 장애를 조절하여 무릎의 유연성을 증가시키는 것으로 추정할 수 있었다 면역기능과 관련하여 신경계와 면역계 사이의 상호교신은 시상하부-뇌하수체-부신을 축으로 분비되는 에피네프린, 토르티솔 등과 같은 체액성 인자 의 분비에 의한 것으로 인식되어 왔다. 그러나 최근의 신경면역조절(nuuroimmumodulation)에 대한 연구들에 의하면 자율신경말단과 변역세포들은 직접 접촉하고 있으면서 신경전달물질과 싸이토카인의 매개에 의해 서로 교신하고 있음이 시사되고 있다(Rainer, Straub, Jurgen, & Werner, 1998). 실제적으로 뜸요법을 받은 대다수의 최행성 관절염 노인들은 통증과 부종이 감소하였고, 걷을 때 훨씬 응직이기가 수월해졌다고 말하고 있다. 그러나 어떤 기전으로 통증과 부종이 감소되는지에 대한 반복연구가 필요하다. 세라밴드는 가볍고 휴대하기에도 편리하며 모든 방향에서의부하의 강도를 자유롭게 조절할 수 있어 쉽게 활용할 수 있는 운동기구이다. 본 연구에서 무릎각도, 족배굴곡, 족저굴곡이 증가하여 유연성이 증가한 것으로 나타났다. 이는 세라밴드 운동이 퇴행성 골관절염 환자를 대상으로 한 연구가 없는 실정이어서 비교하기는 어려우나 국내에서 대학생을 대상으로 등장성 근력에 효과가 있으며(Ham, 2000) 관절가동범위와 유연성을 증가시켜(Page, 2000) 일상생활의 기능을 향상시키는 한편, 통증을 경감시키는 효과(Bang & Deyle, 2000)가 있는 것으로 본 연구를 지지하고 있다. 그러나 뜸요법과 세라밴드 운동 중 어느것이 더 그 효과를 나타내는지는 알 수 없어 각각의 중재를 한반복연구가 필요하다고 사료된다. 본 연구에서 뜸요법 시행시 화상으로 인한 상처와 연기가 많이나서 눈이 따가운 경향이 있었는데, 이는 Kwon과 Park (2005)의 연구에서 실험에서 탈락한 대상자들은 뜸요법 시에‘배에뜸을 뜬 후 뜸뜬 자리가 몹시 가렵고 피부발진이 있었다’,‘ 연기가 많이 나서 눈이 따가웠다’,‘ 뜸이 탈 때 너무 뜨거워 참기 힘들었다’,‘ 뜸의 진액이 옷에 잘 묻고 냄새가 오래가며, 간간이뜸 연기 때문에 눈이 따가웠다’고 하였다는 보고는 본 연구의 실험처치에서도 부분적으로 일치하였다. 따라서 앞으로 뜸요법의 효율성이 입증되고 더욱더 활성화되기 위해서는 이러한 불편감들을 적극적으로 해소시키기 위한 노력이 필요하다. 본 연구는 퇴행성 골관절염 노인을 대상으로 뜸요법과 세라밴드 운동의 효과를 과학적으로 증명하였다는 것에 의의가 있다고 보며, 뜸요법과 세라밴드 운동이 퇴행성 골관절염 노인의 신체적으로 통증, 피로를 감소하고 유연성을 증가시키며, 심리적으로 우울을 감소시키는 간호중재로서 일반화할 수 있기를 기대한다. Purpose: To examine the effects of a nursing intervention including moxibustion and theraband exercise on pain, fatigue, flexibility, and depression in aged patients with degenerative osteoarthritis. Methods: This study had a one group pretest-posttest design. Thirty people over 60 yr-of-age with degenerative osteoarthritis were recruited from a community health center from November 1, 2005 to June 14,2006. The 6 week treatment intervention included twice weekly 60 min sessions of of theraband exercise (30 min) and moxibution (30min). Data was analyzed by SPSS Ver. 12.0. Results: Interventionwas associated with significant decreases in pain (t=8.28, p<.001) and fatigue (t=5.19, p<.001), and significant increases inknee flexibility (t=-3.54, p=.001), dorsal flexibility (t=-9.05, p<.001), and plantar flexibility (t=-4.09, p<.001). Depression was significantly decreased after intervention (t=-4.09, p<.001). Conclusions: Moxibustion and theraband exercise should be utilized as an effective nursing intervention for the aged with degenerative oateoarthritis.

온수배관을 이용한 온실의 난방성능

윤용철(Yong Cheol Yoon),신익수(Yik Soo Shin),김현태(Hyeon Tae Kim),배승범(Seoung Beom Bae),최진식(Jin Sik Choi),서원명(Won Myung Suh) (사)한국생물환경조절학회 2012 생물환경조절학회지 Vol.21 No.2

본 연구는 온실의 난방 에너지 절감을 목적으로 온실 내부에 알루미늄 온수배관을 설치하여 난방효과에 대한 기초자료를 구축하고자 수행되었다. 그 연구결과를 요약하면 다음과 같다. 전체 실험을 포함하여 온실내의 높이별 온도편차는 4.0~7.0℃ 정도의 범위로서 그 차이가 크게 나타났다. 팬코일유니트(FCU)를 작동시킨 경우가 작동시키지 않은 경우에 비해 유출입수의 온도차가 3.3℃ 정도 크고, 소비전력량은 36.2~40.1% 정도 증가하였으며, 시간당 방열량은 44.6~52.0% 정도 증가하는 것으로 나타났다. 실험기간동안 순환유량은 0.48~0.49L · s<SUP>?1</SUP> 정도의 범위에 있었고, 평균유속은 1.53~1.56m · s<SUP>?1</SUP> 정도였다. 유출입수의 평균 온도차는 6.24~11.50℃이었다. 최저 외기온 ?14.0~?0.6℃ 범위에서 설정온도별 방열량은 135,930~307,150㎉ 정도의 범위로서 시간당 9,610~19,630㎉ · h<SUP>?1</SUP> 정도의 범위에 있었다. 이것은 최대난방부하의 약 23~53% 정도의 난방에너지를 공급할 수 있을 것으로 나타났다. 전체 방열량과 소비전력량은 각각 2,548,306㎉ 및 3,075.7㎾h이다. 화석연료인 경유로 난방할 경우, 소요되는 경유의 총 소비량은 281.6L 정도이고 비용은 321,000won인 것으로 나타났다. 농가용 전력요금을 적용하면 전력사용에 대한 총비용은 110,730won 정도로서 경유 소비 비용의 33.5% 정도로 나타났다. 실험구의 온도가 대조구보다 약 8.3~14.6℃ 정도 높게 나타났다. This research was conducted to obtain basic data with regard to the heating performance that would be produced by installing an aluminum hot water pipe inside the greenhouse with the goal of reducing the heating energy in greenhouse. The research results are summarized as follows. The degree of difference in relation to the temperature by height within the greenhouse during the entire experiment was significant - within the range of 4.0~7.0℃. The temperature difference between incoming and outgoing water was about 3.3℃ greater when FCU was activated compared to when it was not activated. Meanwhile, the amount of energy consumed increased about 36.2~40.1%. The amount of pyrexia per hour also increased by 44.6~52.0%. During the experiment period, circulated flux was within the range of 0.48~0.49 L · s<SUP>?1</SUP> while average fluid speed was 1.53~1.56 m · s<SUP>?1</SUP>. The average temperature difference between incoming and outgoing water was 6.24~11.50℃. The amount of heating value by each set temperature within the minimum outdoor temperature range of ?14.0~?0.6℃ was 135,930~307,150 ㎉, and the range was within the 9,610~19,630 ㎉ · h<SUP>?1</SUP> per hour. This demonstrated that about 23~53% heating energy of the maximum heating load could be supplied. Total radiating value and amount of energy consumed were 2,548,306 ㎉ and 3,075.7 ㎾h, respectively. When heating takes place using oil, which is a fossil fuel, the total amount of light oil consumed was 281.6 L while the cost was 321,000 won. When the electricity cost for farms is applied, the total cost was about 110,730 won, which is about 33.5% of the cost required compared to oil consumption. The temperature at in the experiment area was about 8.3~14.6℃ higher compared to that of the control area.

Aqueous Solubility Enhancement of Some Flavones by Complexation with Cyclodextrins

Kim, Hyun-Myung,Kim, Hyun-Won,Jung, Seun-Ho Korean Chemical Society 2008 Bulletin of the Korean Chemical Society Vol.29 No.3

The inclusion complexes of cyclodextrins (CDs) with flavones in aqueous solution were investigated by phase solubility measurements. The effect of b -cyclodextrin (b -CD), heptakis (2,6-di-O-methyl) b -cyclodextrin (DM-b -CD) and 2-hydroxypropyl-b -cyclodextrin (HP-b -CD) on the aqueous solubility of three flavones, namely, chrysin, apigenin and luteolin was investigated, respectively. Solubility enhancements of all flavones obtained with three CDs followed the rank order: HP-b -CD > DM-b -CD > b -CD, and besides, CDs show higher stability constant on luteolin than that on others flavones. 1H-nuclear magnetic resonance (NMR) spectroscopy and molecular modeling was used to help establish the model of interaction of the CDs with luteolin. NMR spectroscopic analysis suggested that A-C ring, and part of the B ring of luteolin display favorable interaction with the CDs, which was also confirmed by docking studies based on the molecular simulation. The observed augmentation of solubility of luteolin by three CDs was explained by the difference of electrostatic interaction of each complex, especially hydrogen bonding.