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Electrochemical Properties of Cross-linked Polyurethane Acrylate-Based Gel Polymer Electrolyte
Kim, Hyun-Soo,Kim, Sung-Il,Choi, Gwan-Young,Moon, Seong-In,Kim, Sang-Pil The Korean Electrochemical Society 2002 한국전기화학회지 Vol.5 No.4
In this study, a gel polymer electrolyte was prepared from urethane acrylate and its electrochemical performances were evaluated. And, $LiCoO_2/GPE/graphite$ cells were prepared and their performances depending on discharge currents and temperatures were evaluated. The precursor containing $5 vol\%$ curable mixture had a low viscosity relatively. Ionic conductivity of the gel polymer electrolyte at room temperature and $-20^{\circ}C$ was ca. $5.9\times10^{-3}S{\cdot}cm^{-1}\;and\;1.7\times10^{-3}S{\cdot}cm^{-1}$, respectively. GPE showed electrochemical stability up to potential of 4.5V vs. $Li/Li^+.LiCoO_2/GPE/graphite$ cell showed a good high-rate and a low-temperature performance.
포스터 전시 : 상부위장관 ; 임파선 전이를 동반한 Gastric Carcinoid Tumor
김신 ( Kim Sin ),김유리 ( Kim Yu Li ),임대관 ( Im Dae Gwan ),박정필 ( Park Jeong Pil ),김선정 ( Kim Seon Jeong ),유홍준 ( Yu Hong Jun ),김지연 ( Kim Ji Yeon ),박무인 ( Park Mu In ),박선자 ( Park Seon Ja ),구자영 ( Gu Ja Yeong ) 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 위의 원발성 carcinoid tumor는 장크롬친화성세포(enterochromaffin like cell)의 증식에 의해 점막의 최하부에서 발생하여 상피성 및 점막하성 종양의 육안적 특징을 같이 가지고 내시경 생검상 잘 진단되지 않는 경우도 있는 종양으로서, 1923년 Von Askanazy가 최초로 2예를 보고한 이래 모든 위종양의 0.3%를, 모든 위장관 carcinoid tumor의 40%를 차지하며, 최근 이러한 종양 중에는 그 악성도
인체 대장암세포(HT-29, WiDr)의 증식에 미치는 Curcumin의 억제효과
김신 ( Kim Sin ),박현용 ( Park Hyeon Yong ),김유리 ( Kim Yu Li ),임대관 ( Im Dae Gwan ),유홍준 ( Yu Hong Jun ),박정필 ( Park Jeong Pil ),김지연 ( Kim Ji Yeon ),박무인 ( Park Mu In ),박선자 ( Park Seon Ja ),정근옥 ( Jeong Geun Og 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 음식첨가제에 포함되어 있는 성분인 curcumin이 인체 소화기암세포(AGS, HT-29)의 증식에 미치는 효과를 좀더 자세히 알기 위해, 세포배양실험을 통하여 curcumin의 증식효과를 조사하고, 5-fluorouracil (5-FU)와의 병용효과를 조사하였으며, 증식억제에 따르는 각 세포주기별 변화를 조사하였다. <재료 및 방법> 증식기의 인체 대장암세포(HT-29, WiDr)를 6 well plate에 각 well당 10×10(4)개의
김유리 ( Kim Yu Li ),김신 ( Kim Sin ),임대관 ( Im Dae Gwan ),박정필 ( Park Jeong Pil ),유홍준 ( Yu Hong Jun ),김선정 ( Kim Seon Jeong ),김지연 ( Kim Ji Yeon ),박무인 ( Park Mu In ),박선자 ( Park Seon Ja ),구자영 ( Gu Ja Yeong ) 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 위의 medullary carcinoma는 육안 소견상 주로 전정부와 체부의 경계부분에 위치하고 중심에 궤양을 동반한 융기된 점막으로 둘러싸여 점막하종양의 형태를 취할 때가 많고, 조직학적으로는 임파구가 밀집한 형태에 종양세포가 군집하여 경계지어지고 악성 임파종과 자주 혼돈된다. 대부분의 종양 세포는 IL-1을 함유하고 Epstein Barr virus와 연관된다는 보고가 있다. 연자들은 1년간의 경과 관찰동안 형태학적으로 변화하여 수술을 통해
김주필(Joo Pil Kim),예용택(Yong Taek Ye),예성훈(Seong Hun Ye),유혜성(Hye Seong Yeu),장지현(Jee Hyeon Jang),오종화(Jong Hwa Oh),채준호(Jun Ho Chae),김태우(Tae Woo Kim),김민섭(Min Seob Kim),변진관(Jin Gwan Byun),이형민(Hyung Min Lee),김 한국거미연구소 2015 한국거미 Vol.31 No.2
2014년 8월 5일부터 7일까지 경상남도 창녕군 일대에 위치한 대한민국 최대의 내륙 습지인 우포늪 일대를 한국거미연구회 회원(김주필, 예용택, 장지현, 오종화, 예성훈, 유혜성, 채준호, 김태우, 김민섭, 변진관, 성민규, 김지후, 김대희, 김녕, 이정준, 이형민 등 16명)들이 채집 조사한 결과 16과 48속 69종의 거미가 조사 연구되어 이에 보고하는 바이다. The authors investigated the spiders of the Upo wetland from 5th August to 7th August, 2014. In the present paper 69 species of 48 genera belong to 16 families were identified. These specimens are deposited at the Joo-Pil Spider Museum, Namyangju-Si, Kyunggi-Do.
The seven-year cumulative survival rate of Osstem implants
Young-Kyun Kim,Bum-Su Kim,Pil-Young Yun,Sang-Un Mun,Yang-Jin Yi,Su-Gwan Kim,Kyung-In Jeong 대한구강악안면외과학회 2014 대한구강악안면외과학회지 Vol.40 No.2
Objectives: This study was performed to analyze the cumulative survival rate of Osstem implants (Osstem Implant Co., Ltd.) over a seven-year period. Materials and Methods: A total of 105 patients who had 467 Osstem implants that were placed at the Section of Dentistry, Seoul National University Bundang Hospital (Seongnam, Korea) from June 2003 through December 2005 were analyzed. The life table method and a cross-tubulation analysis, log rank test were used to evaluate the survival curve and the influence that the prognostic factors. The prognostic factors, i.e., age and gender of patients, diameter and length, type of implants, bone graft history and loading time were determined with a Cox proportional hazard model based on logistic regression analysis. Results: The seven-year cumulative survival rate of Osstem implants was 95.37%. The Cox proportional hazard model revealed that the following factors had a significant influence on survival rate; increased diameter, reduced prosthetic loading period and performance of bone grafting. Conclusion: The osstem implants showed satisfactory results over the seven-year study period.
손성필(Seong Pil Son),김성민(Seong Min Kim),김지성(Ji Sung Kim),왕은석(Eun Seok Wang),박상준(Sang Jun Park),우성민(Sung Min Woo),김인관(In Gwan Kim),김민수(Min Soo Kim),박찬우(Chan Woo Park) 대한설비공학회 2018 설비공학 논문집 Vol.30 No.6
In this study, the basic performance characteristics of a falling film type absorber for use in an absorption chiller were investigated. In order to improve the performance of the absorber, newly-designed heating pipes were tested. End Cross 38, End Cross 40, End Cross 26-2 V, End Dimple, and NF tubes were tested, as well as conventional tubes (Floral tube and End Cross 26 tube). If the falling film absorber is theoretically divided into an upper part that covers the top 35%, a middle part that covers the middle 35% below the upper part, and a lower part that covers the bottom 30%, a high heat transfer and vapor absorption process occurs in the upper region, with successively lower heat transfer and vapor absorption processes in the middle and lower parts. In the case of a low liquid film flow rate of less than 20 liquid film Re, the EC 26 tube has a high overall heat transfer coefficient, and at high liquid film flow rates of 20 to 30 liquid film Re, which are the operating conditions of actual absorption refrigerator commercial equipment, the EC 40 tube has the highest overall heat transfer coefficient. It was also found that the EC 2 V heat transfer tube has a high overall heat transfer coefficient. Finally, it was found that the Floral tube had a generally low heat transfer coefficient.
성인 남성에서 과민성 장증후군과 하부 요로 증상과의 연관성 -인터넷 설문 조사-
임종필 ( Jong Pil Im ),김병관 ( Byeong Gwan Kim ),김지원 ( Ji Won Kim ),이국래 ( Kook Lae Lee ),손환철 ( Hwan Cheol Son ),김주성 ( Joo Sung Kim ),정현채 ( Hyun Chae Jung ),송인성 ( In Sung Song ) 대한소화기학회 2009 대한소화기학회지 Vol.53 No.6
목적: 이번 연구는 젊은 성인 남성에서 과민성 장증후군과 하부 요로 증상과의 연관성과 삶의 질에 미치는 영향을 알아보고자 하였다. 대상 및 방법: 인터넷 전문 설문업체에 등록된 총 23,594명의 20-59세까지의 남성에게 이메일을 발송하여 성실히 설문에 응답한 601명을 최종 분석에 포함하였다. 과민성 장증후군은 로마 기준 II, 하부 요로 증상은 국제 전립선 증상 점수표(International Prostate Symptom Score, IPSS)를 사용하여 평가하였다. 결과: 대상자의 평균 연령은 35.5세였으며, 118명(19.6%)이 로마 기준 II에 근거한 과민성장증후군에 해당하였다. 과민성 장증후군에서 총 IPSS를 이용한 배뇨 증상 점수는 평균 9.6으로 대조군의 7.0보다 유의하게 높았다(p<0.01). 과민성 장증후군에서 `중등증`과 `중증`의 요로 증상을 호소한 분율이 각각 33.9%와 13.6%로 대조군보다 유의하게 높았다(26.9%와 5.2%) (p<0.01). 다변량 회귀분석에서 과민성 장증후군만이 중등증 이상의 하부 요로 증상과 유의한 상관 관계를 나타냈다(OR, 1.91; 95% CI, 1.27-2.88). 또한, 과민성 장증후군에서 대조군보다 요로 증상에 의한 삶의 질 점수가 더욱 불량한 것으로 나타났다. 결론: 과민성 장증후군을 가진 젊은 성인 남성에서 더욱 심한 하부 요로 증상을 호소하며, 이로 인하여 삶의 질 저하가 동반되었다. Background/Aims: Patients with irritable bowel syndrome (IBS) are more likely to experience certain urinary symptoms. The aims of this study were to investigate the association between lower urinary tract symptoms (LUTS) and IBS, and to determine their impact on the quality of life. Methods: E-mails were sent to 23,594 men who were registered at an internet survey company. Subjects were requested to fill out the questionnaires regarding IBS and LUTS assessed by the International Prostate Symptom Score (IPSS). Results: Among 601 subjects (mean age, 35.5±8.4) included in the final analysis, 118 (19.6%) fulfilled the Rome II criteria for the diagnosis of IBS. The total mean IPSS of IBS subjects was 9.6, which was significantly higher than the 7.0 of non-IBS subjects (p<0.01). When IPSS was subcategorized into mild, moderate, and severe symptom categories, the proportions with the moderate and severe symptoms among IBS subjects were 33.9% and 13.6% respectively, which were significantly higher than those of non-IBS subjects; (26.9 and 5.2%) (p<0.01). In multivariate analysis, statistically significant association was found between IBS and moderate to severe LUTS (OR, 1.91; 95% CI, 1.27-2.88). IBS subjects also showed a poorer quality of life score than non-IBS subjects (2.24 vs. 1.65, p<0.001). Conclusions: LUTS in adult men with IBS are more severe and have a more negative impact on the quality of life than in non-IBS subjects. (Korean J Gastroenterol 2009;53:348-354)
Park, Sang Pil,Kim, Jae Hoon,Kang, Hee In,Kim, Deok Ryeong,Moon, Byung Gwan,Kim, Joo Seung The Korean Neurosurgical Society 2017 Journal of Korean neurosurgical society Vol.60 No.6
Objective : To quantitatively measure the degree of bone flap resorption (BFR) following autologous bone cranioplasty and to investigate factors associated with BFR. Methods : We retrospectively reviewed 29 patients who underwent decompressive craniectomy and subsequent autologous bone cranioplasty between April 2005 and October 2014. BFR was defined as : 1) decrement ratio ([the ratio of initial BF size/craniectomy size]-[the ratio of last BF/craniectomy size]) >0.1; and 2) bone flap thinning or geometrical irregularity of bone flap shape on computed tomographic scan or skull plain X-ray. The minimal interval between craniectomy and cranioplasty was one month and the minimal follow-up period was one year. Clinical factors were compared between the BFR and no-BFR groups. Results : The time interval between craniectomy and cranioplasty was $175.7{\pm}258.2$ days and the mean period of follow up was $1364{\pm}886.8$ days. Among the 29 patients (mean age 48.1 years, male : female ratio 20 : 9), BFR occurred in 8 patients (27.6%). In one patient, removal of the bone flap was carried out due to severe BFR. The overall rate of BFR was $0.10{\pm}0.11$ over 3.7 years. Following univariate analysis, younger age ($30.5{\pm}23.2$ vs. $54.9{\pm}13.4$) and longer follow-up period ($2204.5{\pm}897.3$ vs. $1044.1{\pm}655.1$) were significantly associated with BFR (p=0.008 and 0.003, respectively). Conclusion : The degree of BFR following autologous bone cranioplasty was 2.7%/year and was associated with younger age and longer follow-up period.
인체 췌장암세포(Capan1)의 증식에 미치는 Curcumin의 억제효과
임대관 ( Im Dae Gwan ),이신화 ( Lee Sin Hwa ),김신 ( Kim Sin ),김유리 ( Kim Yu Li ),김선정 ( Kim Seon Jeong ),박정필 ( Park Jeong Pil ),김지연 ( Kim Ji Yeon ),박무인 ( Park Mu In ),박선자 ( Park Seon Ja ),정근옥 ( Jeong Geun Og ) 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 음식첨가제에 포함되어 있는 성분인 curcumin이 인체 췌장암세포(Capan1)의 증식에 미치는 효과를 좀더 자세히 알기 위해, 세포배양실험을 통하여 curcumin의 증식효과를 조사하고, 5-fluorouracil (5-FU)와의 병용효과를 조사하였으며, 증식억제에 따르는 각 세포주기별 변화를 조사하였다. <재료 및 방법> 증식기의 인체 췌장암세포(Capan1)를 6 well plate에 각 well당 20×10(4)개의 세포를 분주하여 c