중증 외상 환자의 골반골절에서 경피적 혈관 색전술과 Young과 Burgess 분류의 상관관계

차용한 ( Yong Han Cha ),설영훈 ( Young Hoon Sul ),김하용 ( Ha Yong Kim ),최원식 ( Won Sik Choy ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3

Purpose: Immediate identification of vascular injury requiring embolization in patients with pelvic bone fracture isn’t an easy task. There have been many trials finding indicators of embolization for patients with pelvic bone fracture. Although Young and Burgess classification is useful in decision making of treatment, it is reported to have little value as indicator of embolization in major trauma patients. The aim of this study is to find out Young and burgess classification on predicting vessel injury by analzyng pelvic radiograph taken from major trauma patients with pelvic bone fracture. Methods: Among major trauma patients with injury severity scores (ISS) higher than 15 who visited our emergency room from January 2011 to June 2014, 200 patients were found with pelvic bone fracture in trauma series and thus pelvic CT angiography was taken. Setting aside patients with exclusion criteria, 153 patients were enrolled in this study for analysis of Young and Burgess classification. Results: The most common mechanism of injury was lateral compression in both groups. There was no statistical significant difference in Young and Burgess classification (p=0.397). The obturator artery was the most commonly injured artery in both groups. Six patients had more than one site of bleeding. Conclusion: Prediction of transcatheter angiographic embolization using Young and Burgess classification in severe trauma patients is difficult and requires additional studies. [ J Trauma Inj 2015; 28: 144-148 ]

노노(老老) 전문상담사 양성 프로그램 개발과 평가

한정원 ( Jeong Won Han ),우미향 ( Mee Hyang Woo ),김영순 ( Young Soon Kim ) 한국가족관계학회 2007 한국가족관계학회지 Vol.12 No.3

As the aged society, Korea has recently expanded various social service program for elderly people. Noticing the importance of use of elderly force, the purpose of this paper were to develop the counselling program for elderly people, to run the model program and to evaluate it. To find out the necessity of the program and the main area of interests of elderly people, survey was held before the model program being run. Many respondents, most of them are over 60s, answered that counselling program was necessary to maintain the quality of later life. Targeting young old, this program were developed to intensify the importance of elderly counselling that will be gradually put in the important post in Korea. The program were composed of 10 sessions which included various field of counselling, especially focusing elderly issues. 30 elderly people were participated at the model program. The target of the program were, originally, elderly people aged over 60, the actual participants were mainly in their 50s. From that fact, it can be noted that people in their 50s, as young-old, or people who are in front of aged generation are socially active and need continuous education in society. Considering the program result evaluation, participants wanted the successive program in the more specified form that can be used in the real counselling field. This program can be used in the relevant organizations, contributing to expand the importance of elderly force and need of various social services.

고령자 남녀와 20대 남녀에 있어서 다양한 등속수축중 최대 모멘트의 비교

金智源(Ji-Won Kim),金相佑(Sang-Woo Kim),文基旭(Ki-Wook Moon),嚴光文(Gwang-Moon Eom),李泳揆(Young-Gyu Lee),南貞淑(Jung-Sook Nam),朴寬龍(Kwan-Yong Park),金耀翰(Yo-Han Kim),洪廷和(Jeong-Hwa Hong),朴炳奎(Bung-Kyu Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.10

In this paper, we investigated the maximum ankle joint plantarflexion moment (MPM) of young and elderly subjects during various modes of isokinetic contractions with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects (14 males: 22.7±2.5yrs, 13 females: 20.5±1.3yrs) and the elderly subjects (17 males: 65.8±10.5yrs, 26 females: 71.4±5.2yrs). The MPM was normalized by each subject's body weight. The MPM of elderly females was the weakest among the groups, particularly, at the eccentric contractions. The male-to-female ratio of MPM was greater in the elderly than in the young and the young-to-elderly ratio of MPM was greater in female than in male, both during the eccentric contractions. The result suggests that the decreased muscle force per body weight, especially at the eccentric contraction, may be one reason for the more frequent fall of the elderly female than the elderly male.

Growth Inhibition of Colon Cancer through Inactivation of STAT3 Pathway by IL-10 and IL-1ra Released from Murine Macrophage

Jin Tae Hong, Dohee Won1, Mi Hee Park, Sun Mi Kown, Miran Jo, Sang-Yoon Nam, Beom Jun Lee, Young Won Yun, Ki-Wan Oh, Sang Bae Han 충북대학교 동물의학연구소 2011 Journal of Biomedical and Translational Research Vol.12 No.4

The objective of this study was to determine the effect of macrophages on growth of human colon cancer cells. The results showed that co-culture of colon cancer cells with macrophages inhibited the growth of colon cancer cells (HCT116 and SW620) depending on the number of macrophages, RAW 264.7 cells, and activated THP-1 cells accompanied by down regulation of pSTAT3 in cancer cells. We also found that expression and release of cancer cell growth inhibitory cytokines, IL-1 receptor antagonist (IL-1ra) and IL-10, was increased in macrophages. Blocking of the STAT3 pathway with specific inhibitor and siRNA of STAT3 abolished the growth of colon cancer cells and expression of IL-1ra and IL-10. In addition, neutralization of IL-1ra and IL-10 with antibodies resulted in reversal of macrophage-induced inhibition of cancer cell growth. These data showed that IL-1ra and IL-10 released from macrophages inhibit growth of colon cancer cells through inhibition of the STAT3 pathway

국내·외 누설률에 관한 기준 분석을 통한 국내 연기제어 기준 개선에 관한 연구

김혜원 ( Kim Hye-won ),한지우 ( Han Ji-woo ),이병흔 ( Lee Byeong-heun ),진승현 ( Jin Seung-hyeon ),권영진 ( Kwon Young-jin ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2

On this Study, it conducts the Standards investigation about air leakage of Buildings for performance improvement of Smoke control in Fire. In domestic standards, it is incomplete the Criteria standards of air leakage. Therefore it is considered that won’t limit the smoke spread due to stack effect. But in the case of the United States, it conducts the Hot smoke air-Leakage test and it consider that can prevent the Smoke Spread in Compartment.

2010 해남, 평창, 원주지역 갈대 등 야초류의 이용실태와 사료가치 평가

서성(Sung Seo),한대덕(Dae Duk Han),장선식(Sun Sik Jang),김원호(Won Ho Kim),정민웅(Min Woong Jung),최진혁(Jin Hyuck Choi),김진숙(Jin Sook Kim),김하영(Ha Young Kim),이종경(Joung Kyong Lee) 한국초지조사료학회 2012 한국초지조사료학회지 Vol.32 No.1

본 연구는 부존 조사료자원 이용으로 수입사료를 줄이고 사료비를 절감하고자 2010년도에 전남 해남(간척지), 강원 평창(강변), 원주(섬강변), 전남 영광(와탄강변) 등 4개 지역에서 갈대와 억새 등 야초 자생지를 탐색하고, 수확·이용실태 조사와 함께 사료가치를 분석하였다. 전남 해남 해남목장 내 갈대(Phragmites communis) 위주의 야초 자생지는 300 ha로 예년에는 2회 곤포작업하여 연간 사일리지로 2,300~2,500톤(ha당 8톤)을 생산하였으나 2010년도는 1회 곤포조제로 사일리지 2,000톤(ha당 7톤)을 생산하였다. 유통가격은 롤 당 53천원으로 ㎏당 110원이었다. 곤포는 전량 자가소비하며, 외부 작업단에 롤 당 26천원의 작업비를 지불하였다. 연간 조수입은 2억 2,260만원이며, 소득은 1억원 수준(345천원/ha)이었다. 초장 150 ㎝의 갈대는 조단백질 8.4%, 상대사료가치 71.9 (건초 5등급), 건물 소화율 60.1%로 사료가치는 볏짚에 비해 약간 나은 것으로 평가되었다. 갈대 사일리지의 사료가치와 유기산 함량은 동일 지역에서 동일한 재료로 사일리지를 조제하더라도 수확시기에 따라 차이가 컸으며(CP 4.7~6.4%, RFV 62.2~78.9, 건물 소화율 41.9~53.9%), 갈대 사일리지의 품질은 수단그라스에 비해 불량하였다. 강원 평창 강변 자생갈대의 사료가치는 초장이 79, 117, 121, 142㎝로 생육이 진행됨에 따라 낮아져, 조단백질은 각각 13.9%에서 7.6%로, 상대사료가치는 90.7 (건초 3등급)에서 76.1 (건초 4등급)로, 건물 소화율은 72.9%에서 54.7%로 감소하였다. 원주 섬강 주변 야초류는 곤포수확 작업에 어려움이 있었으며, 초장 130 cm의 갈대는 조단백질 8.5%, 상대사료가치 82.3 (건초 4등급), 건물 소화율 70.2%로 사료가치는 높았으며, 220㎝의 성숙한 갈대는 조단백질 10.2%, 상대사료가치 65.1 (건초 5등급), 건물 소화율 48.9%로 볏짚 대비 조금 나은 것으로 평가되었다. 전남영광지역에서는 와탄천 주변에 자생하는 갈대를 수거 이용하고자 시도하였으나 경제성이 없어 중단하였다. 이상의 결과를 종합하여볼 때, 갈대, 억새 등 야초류는 현 상태에서 최대한 수거·이용하되, 사료가치를 유지하고 가축 기호성이 양호한 시기에 수확하는 것이 중요하며, 최소한 볏짚과 비슷하거나 그 이상의 사료가치를 기대하기 위해서는 7월 중순 이전(늦어도 7월까지)에 수확·이용하는 것이 권장된다. This study was carried out in 2010 to investigate the utilization and forage quality of native grasses, such as Phragmites communis which might reduce the cost of feeding domestic cattle. The regions surveyed were the Haenam ranch in Haenam, Pyeongchang, Wonju, and Yeonggwang. In Haenam, yearly silage production harvested from 300 ha was 2,000 MT (7 MT/ha). All of those round bale silages were self-consumed in that region, and marketing price was 50,000 55,000 won per roll (110 won/㎏). Phragmites communis of 150 ㎝ in length contained 8.4% crude protein (CP) with relative feed value (RFV) 71.9 and 60.1% in vitro dry matter digestibility (IVDMD), which was somewhat more favorable than forage quality of rice straw. The silage quality of Phragmites communis varied greatly by the time of harvest (CP 4.7 6.4%, RFV 62.2 78.9, and IVDMD 41.9 53.9%), even with the same district and of the same original forage materials. Generally, the quality of Phragmites communis silage of was poorer than that of sorghum * sudangrass hybrid. In Pyeongchang, forage quality of Phragmites communis was decreased from 13.9% to 7.6% in CP, 90.7 to 76.1 in RFV, and 72.9% to 54.7% in IVDMD, as plant was getting mature, from 79 ㎝ to 117 ㎝, 121 ㎝ or to 142 ㎝ in length. In Wonju, the quality values of Phragmites communis of 130 ㎝ in length were 8.5% CP, 82.3 RFV and 70.2% IVDMD, while those of matured grasses of 220 ㎝ in length were lower (10.2% CP, 65.1 RFV and 48.9% IVDMD), but this was a little more favorable than quality of rice straw. In Yeonggwang, feeding Phragmites communis was tried in a Hanwoo feed, but stopped due to low profitability. In conclusion, the overall quality of most native grasses including Phragmites communis in this survey was poor. Therefore, we recommend that Phragmites communis and native grasses should be harvested on June or July to obtain richer forage quality in forage values than rice straw.

Effect of gel spinning accompanied with cross-linking using boric acid on the structure and properties of high-molecular-weight poly(vinyl alcohol) fiber

Jo, Yong Gu,Shin, Eun Joo,Lee, Young Jae,Yoon, Won Sik,Han, Sung Soo,Lee, Yang Hun,Lee, Yong Rok,Noh, Seok Kyun,Gal, Yeong Soon,Lyoo, Won Seok Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of applied polymer science Vol.113 No.3

<P>To enhance the thermal stability of poly(vinyl alcohol) (PVA) fiber, the fiber was prepared from the gel spinning of high molecular weight (HMW) PVA by using dimethyl sulfoxide/water (8/2, v/v) as a solvent, accompanied with the cross-link by boric acid (B-PVA). In addition, the structure and properties of the B-PVA fiber were compared with those of the HMW PVA fiber obtained by using the same spinning system without cross-linking (NB-PVA). Through a series of experiments, it turned out that cross-linking actualized by an optimum amount of boric acid (0.3 wt % based on PVA) and zone drawing caused significant changes in the properties of HMW PVA gel fiber. That is, cross-linking increased thermal degradation temperatures at each degradation step and amounts of final residues, resulting in improving thermal properties of the PVA fiber. On the contrary, it was found that in the case of the B-PVA fiber, some broadening of the original PVA unit cell occurred, which was identified by the peak shift to lower angle in X-ray diffractogram. The tensile strength and Young's modulus of B-PVA fiber with draw ratio of 15 are 23.1 and 308.3 g/d, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</P>

보문 : 버섯 세균성갈색무늬병원균(Pseudomonas tolaasii)의 분비 독소(tolaasin)를 저해하는 미생물 Pseudomonas sp. HC1

이찬중 ( Chan Jung Lee ),유영미 ( Young Mi Yoo ),한주연 ( Ju Yeon Han ),전창성 ( Chang Sung Jhune ),정종천 ( Jong Chun Cheong ),문지원 ( Ji Won Moon ),서장선 ( Jang Sun Suh ),한혜수 ( Hye Su Han1 ),차재순 ( Jae Soon Cha ) 한국균학회 2013 韓國菌學會誌 Vol.41 No.4

A Gram-negative bacterium was isolated from mushroom media that markedly reduces the level of extracellular toxins (i.e., tolaasins) produced by Pseudomonas tolaasii, the most destructive pathogen of cultivated mushrooms. The HC1 strain was selected as detoxifying tolaasin by bioassay on potato and it was identified Pseudomonas sp. by the cultural, morphological and physiological characteristics, and analysis of the 16S rRNA.. The isolated bacterium is saprophytic but not parasitic nor pathogenic to cultivation mushroom. The isolated bacterium for P. tolaasii cell, was sufficient for detoxification in vitro. Inoculation of the isolated bacterium prevents the development of bacterial disease in Pleurotus ostreatus, Flammunia velutipes and Agaricus bisporus. Control efficacy of brown blotch of strain HC1 treatment was 69, 68 and 55% on Agaricus bisporus, Flammulina velutipes and Pleurotus ostreatus, respectively. The suppressive bacterium may be useful in future for the development of biocontrol system and the construction of genetically modified edible fungi resistant to the disease caused by P. tolaasii.

비만환자의 전기지방분해침 시술 후 허리둘레 감소에 대한 임상적 고찰

김정환 ( Jeong Hwan Kim ),고연석 ( Youn Seok Ko ),이정한 ( Jeong Han Lee ),원재균 ( Jea Kyun Won ),신병철 ( Byung Cheul Shin ),권영달 ( Young Dal Kwon ),송용선 ( Yung Sun Song ) 한방재활의학과학회 2005 한방재활의학과학회지 Vol.15 No.3

Objectives : To see if there were any differences in waist circumference reduction when certain variable such as age, sex, BFR(BFR; Body Fat Rate), PIBW(PIBW; Percent Ideal Body Weight), WHR(WHR; Waist Hip Ratio) and BMI(BMI; Body Mass Index) were given. Methods : Among outpatients who admitted to department of Oriental Rehabilitation Medicine, Jeon-Ju Oriental Medicine Hospital, Won-kwang University from August 2003 to september 2004, 89 obese patients were chosen and electroacupunture was practiced to these groups in order to treat abdominal obesity and waist circumference reduction. Results : There were no significant correlation between sex, age and waist circumference reduction. Compared to groups who had shown lower BMI, higher BMI groups have shown greater change in waist circumference reduction. As BFR increase waist circumference reduction tended to increase as well. Conclusions : From the above results, higher BMI groups had shown greater change in waist circumference reduction compared to lower BMI groups.

차량의 자갈로 주행성능 예측을 위한 자갈의 이산요소모델

임동우 ( Dongu Im ),김지태 ( Ji-tae Kim ),한현우 ( Hyun-woo Han ),최혁진 ( Hyuek-jin Choi ),오재원 ( Jae-won Oh ),박영준 ( Young-jun Park ) 한국농업기계학회 2021 한국농업기계학회 학술발표논문집 Vol.26 No.1

자갈로는 아스팔트 포장 도로에 비해 낮은 수준의 마찰 특성을 가진다고 보고되고 있다. 특히, 경사로에서 자갈은 구름 운동이 발생하게 되며 그에 따라 주행 중 슬립이 발생하게 된다. 이는 차량의 동력손실과 더불어 안정성(stability)에 악영향을 미친다. 본 연구에서는 차량의 자갈로 주행성능을 예측하기 위해 자갈의 이산요소모델을 개발하였다. 이산요소법(discrete element method)은 접촉 이론을 바탕으로 입자와 입자, 입자와 기계장치와의 접촉력을 계산하는 수치해석법이다. 실제와 유사한 입자의 역학적 특성을 시뮬레이션 모델에 반영하기 위해서는 입자의 형상, 밀도, 크기 등의 macro parameters와 Young’s modulus, Poisson’s ratio, 마찰계수 등의 micro parameters를 정확하게 정의해야 한다. 따라서 본 연구에서는 자갈의 밀도와 크기를 측정하였으며, 실제 자갈과 유사한 형상을 반영하기 위해 자갈의 sphericity를 측정하였다. 또한, 일축 압축 시험을 통해 자갈의 Young’s modulus와 Poisson’s ratio를 측정하였으며, 안식각(repose angle) 시험을 통해 자갈의 마찰계수를 도출하였다. 마지막으로 자갈의 이산요소모델을 검증하기 위해 단일 그라우저의 추진력 시험을 수행하였으며 시험 결과를 시뮬레이션 결과와 비교하였다.