지속성 외래복막투석 환자들의 예후에 영향을 미치는 요인들에 관한 고찰

권혁만,김찬덕,조지형,장민화,최혁준,이현철,박자용,박선희,김용림 대한신장학회 2004 대한신장학회잡지 Vol.23 No.2

Characterization of SUS Molds for Light Guide Plates by Electro-Chemical Fabrication (ECF) Method

Min-Soo Cho,Si-Hyeong Cho,Nam-Goo Cha,Hyun-Woo Lim,Jin-Goo Park,Jae-Seung Jo 대한금속재료학회(구 대한금속학회) 2007 ELECTRONIC MATERIALS LETTERS Vol.3 No.2

A new micro fabrication method termed electro chemical fabrication (ECF) is introduced to overcome conventional problems of electrochemical machining (ECM), such as low reliability and reproducibility. This ECF process defines micro patterns using a conventional photolithography, allowing it to produce micro-scale patterns with an excellent surface profile and of excellent quality. In this paper, four-inch 304 SUS and Ni molds were fabricated by using ECF and FeCl3 wet etching processes, respectively. The etch rate of stainless steel was measured at nearly 0.27 μm/min at optimized ECF conditions and that of Ni was 0.77 μm/min with FeCl3 dipping. To ensure a uniform depth profile of 10 μm, the process time for the SUS and the Ni mold were determined to be 36 minutes and 13 minutes, respectively. After the fabrications of SUS and Ni molds, the ECF-SUS mold showed two times better surface roughness values than the FeCl3-Ni mold. To evaluate the ECF-SUS process, light guide plates (LGP) were made using an injection molding method. The LGP using the FeCl3-Ni mold showed a hazy area when tilting the plate. This haze effect is believed to have formed from poor surface roughness. An LGP made with an ECF-SUS mold showed a 25% higher brightness and a 15% higher light uniformity compared to a FeCl3-Ni mold.

Insomnia and hearing impairment among occupational noise exposed male workers

Hyeong-Min Lim,WonYang Kang,Won-Ju Park,Keun-Ho Jang,Ji-Sung Ann,Jai-Dong Moon 대한직업환경의학회 2017 대한직업환경의학회지 Vol.29 No.-

Background: The aim of this study was to investigate the association between insomnia and hearing impairment among workers exposed to occupational noise. Methods: This study included 809 male workers exposed to occupational noise. The participants underwent audiometric testing, and their insomnia was examined based on the Insomnia Severity Index test. Hearing impairment was defined as hearing threshold >25 dB hearing level in the range of 1–4 kHz. Results: According to analysis of covariance, it was observed that pure tone audiometry thresholds at 1–2 kHz in the right ear and at 1 kHz in the left ear were significantly higher among workers with insomnia compared to those with no insomnia. Multiple logistic regression analysis of insomnia for hearing impairments was performed, which showed the odds ratio was 1.806 (95% confidence intervals: 1.022–3.188, p = 0.042) after adjustment for age, working period, noise level, snoring, use of protection devices, diabetes mellitus, hypertension, smoking, alcohol consumption, regular exercise, waist circumference, total cholesterol, triglyceride and high density lipoprotein cholesterol. Conclusion: Insomnia could be associated with hearing impairment in workers who are exposed to occupational noise. Additionally, insomnia may be associated with decreased hearing at low frequencies. Especially, more efforts are required to improve the quality of sleep for workers who are exposed to loud occupational noise. Further welldesigned prospective studies are needed to clarify the relationship between insomnia and hearing impairment.

자연체험 프로그램이 청각·지적장애인의 행동에 미치는 영향

권민형(Min Hyeong Kwon),박은경(Eun-Kyoung Park),임연진(Yeon-Jin Lim),이해주(Hae-Joo Lee),김성식(Sung-Sik Kim),한민정(Min-Jung Han) 한국산림휴양학회 2011 한국산림휴양학회 학술발표회 자료집 Vol.2011 No.11

한류 콘텐츠인 드라마 시청 동기와 문화 선호도에 관한 연구

임형민(Hyeong-Min Lim),박주연(Joo-Yeun Park) 경성대학교 사회과학연구소 2011 社會科學硏究 Vol.27 No.4

본 연구에서는 현지에 있는 중국과 일본 대학생들을 대상으로 한류 드라마의 시청 동기와 한국에 대한 태도, 한국문화 선호도에 대해 알아보고,이를 토대로 변인 간의 관계를 분석했다. 연구결과 중국과 일본 대학생의 한류 드라마 시청 동기는 5가지 요인으로 ‘문화적 호기심’ ‘콘텐츠 우수성’, ‘문화적 유사성’ ‘배우 매력도’ ‘관계적 요인’으로 나타났다. 한류 드라마의 시청 동기가 한국문화 선호도에 유의미한 영향을 미치는 변인으로는 ‘문화적 호기심’과 ‘배우 매력도’, ‘관계적 요인’으로 나타났으며, 나머지 변인들은 영향을 주지 않는 것으로 나타났다. 본 연구에서는 한국 드라마의 시청 동기를 알아봄으로써 국내 시장에서 드라마의 시청 동기와 다르게 해외에서 수용자들이 어떤 목적을 가지고 한국 드라마를 시청하는지 접근하였다. 또한 적극적이고 능동적인 대학생 집단을 대상으로 시청 동기를 조사함으로서 한국 드라마의 특성에 대해 접근하는 계기를 가졌다는 점에서 의의가 있다. This research analyzed growth rates and the concentration ratio of Korean advertising agencies using DARTS (Data Analysis, Retrieval and Transfer System) of Financial Supervisory Service (dart.fss.or.kr) and revenue data in financial statements available from Korea Investors Service (www.kisrating.com). From KOBACO’s (Korea Broadcast Advertising Corporation) top 50 lists from 1990 to 2009, 63 ad agencies were selected, including new entries each year and excluding those without audit reports. These advertising agencies appeared in the form of in-house agencies and multi-national ad agencies. The average growth rate of advertising agencies was 27.72% from 1990, the year the advertising market was opened to foreign investment until 1996, the year before the economic crisis in Korea. The growth rate showed a sign of recovery with 29.5% in 1999, and 30.2% in 2000. However, the growth rate of ad agencies was unstable with 0.2% in 2001, 5.3% in 2002 and -2.5% in 2003. From 2004 to 2009, only one digit growth rates were recorded. Since the opening of the advertising market to foreign investment, the average growth rate was 12.97%. This result showed a slowing down in the growth of the Korean advertising market and intensified competition for clients by ad agencies. The average market share of top three was 54%, and that of top five was 68%, showing continuous growth with slight decrease after the IMF economic crisis. The average marketshare of top ten was 84% and that of top 15 was 92%. The concentration ratio calculated based on the audit reports showed the top 15 taking more than 90% of total audit reports revealing the state of oligopoly. Since 1990, the top five had been taken by in-house ad agencies and multinational ad agencies which indicated the intensification of concentration ratio as well as polarization of the advertising market.

Phototherapy suppresses inflammation in human nucleus pulposus cells for intervertebral disc degeneration

Hwang, Min Ho,Son, Hyeong Guk,Lee, Jae Won,Yoo, Chang Min,Shin, Jae Hee,Nam, Hyo Geun,Lim, Hyun Jung,Baek, Seung Min,Park, Jeong Hun,Kim, Joo Han,Choi, Hyuk Springer-Verlag 2018 Lasers in medical science Vol.33 No.5

생물생산시설 및 환경공학 분야 : P4-22 ; 백태의 자엽기 생육특성 분석

임형민 ( Hyeong Min Lim ),강신형 ( Shin Hyeong Kang ),이규승 ( Kyu Seung Lee ),이동훈 ( Dong Hoon Lee ) 한국농업기계학회 2015 한국농업기계학회 학술발표논문집 Vol.20 No.1

영상 데이터에서의 CRNN 기반 자세 인식

임세민(Se-Min Lim),채병철(Byeong-Cheol Chae),임수빈(Soo-Bin Lim),박주영(Jooyoung Park),오형철(Hyeong-Cheol Oh) 한국정보과학회 2020 한국정보과학회 학술발표논문집 Vol.2020 No.7

꾸지뽕 열매의 급여가 산란계의 생산능력, 혈액 성상, 면역글로불린에 미치는 영향

임천익(Chun Ik Lim),최홍환(Hong Hwan Choi),최승민(Seung Min Choi),이동길(Dong Gil Lee),강민수(Min Su Kang),이봄미(Bom Mi Lee),김형주(Hyeong Ju Kim),신민경(Min Kyeong Shin),이아라(A Ra Lee),류경선(Kyeong Seon Ryu) 한국가금학회 2016 韓國家禽學會誌 Vol.43 No.1

이 연구는 꾸지뽕 열매(Cudrania tricuspidata fruit; CTF)의 산란계에 급여가 생산 능력, 계란의 품질, 지방산, 혈중콜레스테롤, 면역글로불린에 미치는 영향을 구명하고자 시행하였다. 48주령 산란계 닉브라운 288수를 4개 처리구 4반복 반복 당 18수씩 개체별 케이지에 배치하였으며, 처리구는 건조된 꾸지뽕 열매를 0, 0.25, 0.50, 1.00% 첨가하여 급여하였다. 기초사료의 ME와 CP는 2,800 ㎉/㎏, 16.0% 수준으로 하였으며, 산란율, 1일 산란량은 CTF 1% 급여구에서 다른 처리구에 비하여 현저하게 증가하였으며(P<0.05), 사료섭취량은 처리구 간에 차이가 없었지만, 사료요구율은 CTF 1.0% 급여구에서 다른 처리구보다 현저하게 개선되어 통계적으로 차이를 보였다(P<0.05). 알부민의 높이, 호유닛과 난각강도는 CTF 첨가로 인하여 개선되는 경향을 보였지만, 통계적인 차이는 없었다. 난황색도는 CTF 첨가 수준이 증가함에 따라서 증가하였다(P<0.05). 난황의 지방산은 일관성은 없었지만, n6/n3 비율이 CTF 처리구에서 대조구에 비하여 높게 나타났다. 혈중 콜레스테롤과 TG는 CTF 급여구에서 대조구보다 매우 낮았으며(P<0.05), 면역글로불린은 CTF 처리구에서 대조구보다 높게 나타났다(P<0.05). 이 실험 결과 산란계 사료에 CTF 1% 첨가는 생산능력과 계란 품질을 개선하였지만, 혈중 콜레스테롤, TG, IgG는 CTF 0.25% 수준으로 충분하였다. This research was carried out to determine the effect of Cudrania tricuspidata fruit (CTF) on the performance of laying hens, egg quality, yolk fatty acid composition, Immunoglobulin G (IgG) and blood composition. A total 288 Brown Nick laying hens of 48 weeks old replaced into 4 groups with 4 replicates of 18 birds in each. Treatments were added with 0, 0.25, 0.5, 1.0% CTF containing dried seed and pulp. Metabolizable energy (ME) and crude protein (CP) were 2,800 ㎉/㎏ and 16.0% in basal diets, respectively. Egg production and daily eggmass were significantly increased in 1.0% CTF addition treatment compared to those of other treatments (P<0.05). Egg weight and feed intake were not different among treatments. Feed conversion ratio showed the lower result in 1.0% CTF treatment than other treatments (P<0.05). Eggshell color was not influenced by the addition of CTF. Albumin height, Haugh unit and eggshell breaking strength was not statistically different, but seemed to be higher as dietary CTF addition increased. Yolk color was increased as dietary CTF increased and was the highest in 1.0% CTF group (P<0.05). Fatty acids were not shown the consistency in yolk. Blood cholesterol and triglyceride (TG) of birds fed CTF were significantly low compared to those of control. IgG was also statistically higher in CTF treatments than control (P<0.05). As the results of this experiment, the addition of 1% CTF would be the most effective on performance and egg quality, whereas the 0.25% CTF addition in basal diets seemed to be optimum to improve the blood cholesterol, TG,high density lipoprotein cholesterol (HDL-CHOL), IgG in laying hens.

지속성 외래복막투석 환자들의 예후에 영향을 미치는 요인들에 관한 고찰

권혁만 ( Kwon Hyeog Man ),김찬덕 ( Kim Chan Deog ),조지형 ( Jo Ji Hyeong ),장민화 ( Jang Min Hwa ),최혁준 ( Choe Hyeog Jun ),이현철 ( Lee Hyeon Cheol ),박자용 ( Park Ja Yong ),박선희 ( Park Seon Hui ),김용림 ( Kim Yong Lim ) 대한신장학회 2004 Kidney Research and Clinical Practice Vol.23 No.2

배 경 : 복막투석은 신이식 및 혈액투석과 함께 말기신부전 환자의 신대체요법으로 널리 사용되고 있다. 복막투석 환자들의 예후는 전통적으로 요소 역동모델로 표현된 투석량에 가장 많은 영향을 받는다고 알려져 왔으나 최근 여러 연구들에 의하면 적절한 투석에는 단순한 투석량의 증가이외의 것들이 필요하다고 한다. 이에 본원에서 복막투석을 시행증인 환자들을 대상으로 영양상태와 투석량, 잔여 신기능, 복막투과특성 등을 평가하고 4년 이상 추적관찰을 하여 복막투석 환자의 생존율 및 기술생존율에 영향을 미치는 요인들을 살펴보았다. 방 법 : 복막투석 환자들 중 1998년 3월부터 1999년 2월까지 영양상태, 투석적절도, 잔여 신기능, 복막상태를 평가받고 2003년 1월까지 경과추적이 가능하였던 127명의 환자를 대상므러 하여 먼저 이들 요인들이 복막투석의 환자생존율 및 기술생존율에 미치는 영향을 살펴보았다. 또 이들 중 투석적절도의 재평가가 가능하였던 41명에서는 시간에 따른 요인들의 변화가 환자 생존율과 기술생존율에 미치는 영향을 알아보았다. 결 과 : 전체 대상환자군 (남:여 72:55)의 평균투석시작 연령은 47±12.9세, 평균추적기간은 44.5±1.8개월, 평균 기술생존 기간은 42.2±1.8개월이었다. 초기 분석시 환자들의 평균 혈청알부민은 3.7±0.5 g/dL, nPCR은 0.8±0.2 g/㎏/d, %LBM는 68.4±14.3, 주당 Kt/V는 2.0± 0.7, Ccr는 64.5±28.8 L/wk/1.73 ㎡, 잔여 신기능은 1.1±2.3 mL/min, 24 hours D/Pcr은 0.74±0.12이au Kt/V, Ccr이 2.0, 60/wk/1.73 ㎡ 이상인 군이 각각 40.9%, 43.3%, 그리고 잔여 신기능이 0.5 mL/min 이상인 경우를 잔여 신기능이 있다고 가정할 경우 33.9%의 환자에서 잔여 신기능이 관찰되었다. Kaplan-Meier 생존율 분석 및 Cox regression model로 분석한 결과 환자생존율에 영향을 미치는 요인들은 당뇨병성 신병증, 혈청알부민, 잔여 신기능의 유무 등이었으며 nPCR, SgA, %LBM, Kt/V, Ccr 등은 영향이 없있고 기술생존율에 영향을 미치는 요인들은 연령, 당뇨병성 신병증, 혈청알부민, 잔여 신기능의 유무, 그리고 복막투과 특성 등이었다. 투석적절도를 추적 관찰하였던 환자들 중 사망군과 기술실패를 보였던 군에서 혈청일부민의 감소속도가 빨랐고 복막투과특성의 증가소견을 보였다. 결 론 : 환자들의 영양상태 및 잔여 신기능의 유지가 환자의 장기적인 생존 및 기술생존에 중요하며 혈청알부민의 감소와 복막투과특성의 증가는 장기적인 환자생존 및 기술생존에 부정적인 영향을 미치는 것으로 사료된다. Purpose : Several factors including dialysis adequacy are now known to be related to clinical outcomes of CAPD patients. In our study, the long term effects of dialysis adequacy, residual renal function, nutritional indices, and peritoneal membrane transport characteristics on the outcomes of CAPD patients were evaluated. Methods : Prevalent or incident 127 patients were enrolled from February 1998 to January 1999. Follow-up was terminated in January 2003. In 41 patients, parameters of adequacy were reevaluated, and the effects of parameter change over time on patient outcomes were analyzed. Results : Seventy-two were male. Twenty-nine (23%) were diabetic. Mean age was 47±12.9 years, and the mean follow up period was 45±1.8 months. The baseline serum albumin was 3.7±0.5 g/dL. nPCR was 0.8±0.2 g/kg/d, and %lean body mass was 68.4±14.3 Kt/V was 2.0±0.7, and Ccr was 64.5±28.8 L/자/1.73 m². The estimated GFR was 1.1±2.3 mL/min. The multivariated analysis demon strated that diabetes, serum albumin, and the patent residual renal function were independent factors of the patient and technique survival. Membrane transport characteristic was a predictor of technique survival. Among patients for whom the parameters of adequacy were reevaluated, a more rapid decrease of serum albumin and a more rapid increase of membrane transport characteristics were associated with increased risk of either death or technique failure. Conclusion : Nutritional indices and presence of residual renal function have a significant impact on the clinical outcome. The decrease of serum albumin and the increase of membrane transport characteristic have negative impacts on patient and technique survival. (Korean J Nephrol 2004;23(2):325-334)