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.

Prevention of medical malpractice and disputes through analysis of lawsuits related to coronary angiography and intervention

Cheol Won Hyeon,Won Lee,So Yoon Kim,Ji Yong Park,Su Hwan Shin 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.3

Background/Aims: Possible fatal complications arising from coronary angiography (CAG), percutaneous coronary intervention (PCI), and coronary artery disease itself, are likely to cause medical disputes. Presenting the current status and reasons for judgments given in lawsuits related to CAG/PCI, this study aimed to identify ways to prevent unnecessary disputes and medical malpractice suits related to CAG/PCI through lawsuit analysis. Methods: A total of 13 cases (20 judgments) found in the Supreme Court of Korea’s Written Judgment Management System from 1998 to 2017 were analyzed. Results: Coronary artery injury was the most common causative complication that led to lawsuits (n = 6, 46%). Six cases (46%) were ruled in favor of the plaintiff for violation of duty of care (n = 4) and duty of explanation (n = 2), respectively. Cases that violated duty of care included two errors in intra-procedure device manipulation, one in pre-procedure diagnosis, and one in management of post-procedure complication. Lack of explanation regarding the risk of complications was pointed out in both cases that violated duty of explanation. The average awarded amount for the damages was 114,436,064 Korean won. Conclusions: Physicians need not fear unfair judgments so long as they follow standard of care because the Court consistently looked at the probability, the foreseeability, and the evidence. Therefore, maintaining standard of care is important. Besides, specific, detailed, and comprehensible explanations, including the risk of complications in addition to the necessity of procedures, are important to ensure the patient clearly understands the possible risk of adverse outcomes.

산업장 근로자의 스트레스에 대한 한의계 연구경향

차윤엽 ( Yun Yeop Cha ),고연석 ( Youn Seok Ko ),이정한 ( Jung Han Lee ),정원석 ( Won Suk Chung ),신병철 ( Byung Cheul Shin ),전찬용 ( Chan Yong Jeon ),고호연 ( Ho Yeon Go ),선승호 ( Seong Ho Sun ),장보형 ( Bo Hyoung Jang ),송윤경 한방재활의학과학회 2013 한방재활의학과학회지 Vol.23 No.2

Objectives : The purpose of this study is to explore the trends of Korean medical study on stress in the industrial worker. Methods : We received numbers of the studies about stress in the industrial worker from 6 Korean web databases, using key words such as ‘Industry AND Stress’, ‘Oriental medicine AND Stress’, ‘Worker AND Stress’, ‘Workplace AND Stress’. We received 12 research papers and they were analyzed and the journals, the authors, the contents of 3 classification of those research papers. Results : Among them, we had 6 reviews of Dept. of preventive medicine and Dept. of third medicine, college of Korean Medicine, Won-kwang University, and the rest of them were 6 reviews. We had 4 reviews of Korean Journal of Oriental Preventive Medical Society, 2 reviews of the Journal of Traditional Korean Medicine, 2 reviews of Journal of Oriental Neuropsychiatry and so on. According to the contents of reviews, we had 7 reviews of correlation of industrial worker and stress, 4 reviews of cause on the industrial worker’s stress and 1 case report. Conclusions : We reviewed the trends of Korean medical study on stress in the industrial worker. The stress in the industrial workers were related with the type of occupation, social psychology, drinking, smoking, the satisfaction of job, the harmony of organization.And we knew that the musculoskeletal pain was related to the industrial worker’s stress. In the future, abundant case studies, follow-up trials and RCTs should be done about the industrial worker’s stress.

Atomic variations in digital alloy InGaP/InGaAlP multiple quantum wells due to thermal treatment

Shin, Jae Won,Jeong, Hu Young,Yoo, Seung Jo,Lee, Seok-Hoon,Han, Jun Hee,Lee, Jeong Yong,Ahn, Jun Sung,Park, Chang Young,Park, Kwang Wook,Lee, Yong-Tak,Kim, Jin-Gyu,Kim, Tae Whan IOP Publishing 2014 Japanese journal of applied physics Vol.53 No.11

DETECTING VARIABILITY IN MASSIVE ASTRONOMICAL TIME-SERIES DATA. II. VARIABLE CANDIDATES IN THE NORTHERN SKY VARIABILITY SURVEY

Shin, Min-Su,Yi, Hahn,Kim, Dae-Won,Chang, Seo-Won,Byun, Yong-Ik American Institute of Physics 2012 The Astronomical journal Vol.143 No.3

<P>We present variability analysis of data from the Northern Sky Variability Survey (NSVS). Using the clustering method, which defines variable candidates as outliers from large clusters, we cluster 16,189,040 light curves having data points at more than 15 epochs as variable and non-variable candidates in 638 NSVS fields. Variable candidates are selected depending on how strongly they are separated from the largest cluster and how rarely they are grouped together in eight-dimensional space spanned by variability indices. All NSVS light curves are also cross-correlated with IRAS, AKARI, Two Micron All Sky Survey, Sloan Digital Sky Survey (SDSS), and GALEX objects, as well as known objects in the SIMBAD database. The variability analysis and cross-correlation results are provided in a public online database, which can be used to select interesting objects for further investigation. Adopting conservative selection criteria for variable candidates, we find about 1.8 million light curves as possible variable candidates in the NSVS data, corresponding to about 10% of our entire NSVS sample. Multi-wavelength colors help us find specific types of variability among the variable candidates. Moreover, we also use morphological classification from other surveys such as SDSS to suppress spurious cases caused by blending objects or extended sources due to the low angular resolution of the NSVS.</P>

Bridging between Model-level and Instance-level GNN Explanations

Yong-Min Shin(신용민),Won-Yong Shin(신원용) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.6

ITO-free transparent conductive films based on carbon nanomaterials with metal grid for liquid crystal displays

Shin, Seung Won,Jung, Yong Un,Kim, Ki-Beom,Choi, Suk-Won,Kang, Seong Jun Taylor Francis 2015 Liquid crystals Vol.42 No.7

The expression of TLRs in pulmonary neuron in bleomycin induced pulmonary fibrosis model

( Won Jai Jung ),( Sue In Choi ),( Eun Joo Lee ),( Kyung Hoon Min ),( Gyu Young Hur ),( Seung Heon Lee ),( Sung Yong Lee ),( Je Hyeong Kim ),( Chol Shin ),( Jae Jeong Shim ),( Kwang Ho In ),( Kyung Ho 대한결핵 및 호흡기학회 2015 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.120 No.-

Background: The family of Toll-like receptors (TLRs) plays a key role in controlling innate immune responses to a wide variety of pathogen-associated molecules. Nerve cells originated from lung are considered to be related with clinical respiratory symptoms including coughing, dyspnea. However, investigation of TLRs in pulmonary nerve cells has scarcely studied. We investigated the expression of TLRs in pulmonary nerve cells and change of TLRs in bleomycin induced lung fibrosis model. Methods: Male Spraque-Dawley rats were given a single dose of bleomycin (2.5 mg/kg, intratracheally) in pulmonary fibrosis groups and saline in controls. Fibrotic changes in lung were estimated to occur by BAL, histology and SIRCOL collagen assay. Using real-time PCR, we assessed the expression of TLRs (TLR 1-9) in pulmonary neurons of bleomycin induced lung fibrosis rat model in comparson with normal controls. Results: Bleomycin challenge caused pulmonary fibrosis with increase in collagen content of lung tissue and typical histological findings. We showed strong expression of TLR-2, TLR-5 in pulmonary neuron of bleomycin fibrosis rats versus normal rats. Conclusions: The concerted alteration of expression of TLRs in pulmonary neurons can be of relevance for understanding the pathogenesis of lung fibrosis.

Increasing Trend of Colorectal Cancer Incidence in Korea, 1999-2009

Shin, Aesun,Kim, Kyee-Zu,Jung, Kyu-Won,Park, Sohee,Won, Young-Joo,Kim, Jeongseon,Kim, Dae Yong,Oh, Jae Hwan Korean Cancer Association 2012 Cancer Research and Treatment Vol.44 No.4

<P><B>Purpose</B></P><P>This study was conducted in order to demonstrate changing trends in colorectal cancer incidence according to sex, age group, and anatomical location in the Korean population.</P><P><B>Materials and Methods</B></P><P>Data from the Korea Central Cancer Registry between 1999 and 2009 were analyzed. Annual percent changes (APCs) of sex- and age-specific incidence rates for cancer of the proximal colon (International Statistical Classification of Diseases and Related Health Problems, 10th revision [ICD-10] code C18.0-18.5), distal colon (C18.6-18.7), and rectum (C19-20), and male-to-female incidence rate ratios (IRR) were calculated.</P><P><B>Results</B></P><P>The age-standardized incidence rate (ASR) of colorectal cancer was 27 (per 100,000) in 1999 and increased to 50.2 in 2009 among men (APC, 6.6%). The ASR for women was 17.2 in 1999 and 26.9 in 2009 (APC, 5.1%). The rectum was the most common site of cancer among both men and women during 1999 and 2009. However, the distal colon had the highest APC (10.8% among men and 8.4% among women), followed by the proximal colon (7.9% among men and 6.6% among women), and rectum (5.2% among men and 2.4% among women). The proportion of rectal cancer decreased from 51.5% in 1999 to 47.1% in 2009 among men, and from 50.5% to 42.8% among women. An increase in the male-to-female IRR was observed for distal colon cancer and rectal cancer, whereas the IRR for proximal colon cancer was stable.</P><P><B>Conclusion</B></P><P>The rapid increase in colorectal cancer incidence is mainly attributed to the increase in colon cancer, especially distal colon cancer, and may be explained by a transition of risk factors for subsites or by the effect of colorectal cancer screening.</P>

Clinical Implications of Ischemic Stroke in Patients with Pulmonary Embolism

( Yong Hoon Lee ),( Seung-ick Cha ),( Jongmin Park ),( Jae Kwang Lim ),( Won Kee Lee ),( Ji-eun Park ),( Sun Ha Choi ),( Hyewon Seo ),( Seung-soo Yoo ),( Shin-yup Lee ),( Jaehee Lee ),( Chang-ho Kim ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-

The clinical implications of ischemic stroke on the outcomes of patients with pulmonary embolism (PE) are not well understood. We investigated whether the clinical characteristics and treatment outcomes differ according to the history of ischemic stroke in patients with PE. Patients hospitalized for PE were classified into the following two groups: patients with a history of ischemic stroke (stroke group) and those without prior stroke (control group). We compared the clinical, laboratory, and radiological parameters between the groups. Of the 1,339 patients with PE, 115 (8.6%) had a history of ischemic stroke. The proportion of unprovoked PE was lower in the stroke group than in the control group, whereas the frequency of immobilization was higher. Comorbidities, including diabetes mellitus, ischemic heart disease, and atrial fibrillation, were more common in the stroke group. Despite the insignificant difference between the two groups in PE severity index (PESI) and computed tomography (CT) findings, PE-related in-hospital mortality was significantly higher in the stroke group than in the control group (7 [6.1%] vs. 15 [1.2%], p = 0.002), and prior stroke was one of the independent factors predicting PE-related in-hospital deaths (odds ratio, 4.87; 95% confidence interval, 1.92-12.35; p < 0.001). In conclusion, although PESI score, right ventricular dilation on CT, and adverse outcomes did not differ between the stroke and control groups, a history of ischemic stroke might influence the PE-related in-hospital mortality in PE patients.