Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy in management of peritoneal carcinomatosis: Single center experience in Korea

Hee Ju Lee1,HyungJoo Baik1,박요한,서상혁,김광희,Ki Beom Bae,Kwan Hee Hong,김기향,변정미,Dae Hoon Jeong,Kyung Bok Lee,오민경,조광래,안민성 대한종양외과학회 2019 Korean Journal of Clinical Oncology Vol.15 No.2

Purpose: Peritoneal carcinomatosis (PC) has been considered a terminal condition and cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIEPC) is regarded as an alternative therapeutic option. This study aimed to evaluate the 30-day clinical outcomes of CRS/HIPEC and the feasibility of the surgery by investigating the morbidity and mortality in Inje University Hospital. Methods: Data were retrospectively collected from 19 patients with PC who underwent CRS/HIPEC at Inje University Hospital in 2018. We evaluated pre-, intra-operative parameters and postoperative clinical outcomes and early complications. Results: The mean operating time was 506.95 minutes and the mean blood loss was 837.11 mL. Six cases (31.58%) had morbidity of grade III or above. A longer operating time (≥560 minutes, P=0.038) and large blood loss (≥700 mL, P=0.060) were positively correlated with grade III or worse postoperative complications. Conclusion: Our early experience with CRS/HIPEC resulted in a 31.58% morbidity rate of grade III and above, with risk factors being longer operating time and greater intraoperative blood loss. As the surgical team’s skills improve, a shorter operating time with less intraoperative blood loss could result in better short-term outcomes of CRS/HIPEC.

기능성 담체를 이용한 질소·인 제거기술

백순기,정희정,이정환 동신대학교 환경연구소 2004 환경연구 Vol.9 No.1

국내의 폐수처리공정들은 호기성 처리이므로 유기물제거는 효율적으로 처리되어 왔으나 호소 및 하천 등의 부영양화를 일으키는 질소와 인이 제대로 처리되지 못하고 방류되고 잇는 실정이다. 본 연구에서는 A2/O 변형공법 및 담체 이용 폐수처리공법에 적용시키기 위한 질소·인 제거용 실험설비를 설계 제작하였으며, 이 실험 장치를 이용하여 처리방법별 수질오염물질 제거효율을 살펴보았다. 담체를 이용하지 않은 A₂/O변형공법의 경우, 수질오염물질의 제거효율을 T-N 94%,T-P 91.15%의 제거효율을 나타내었다. 담체로는 기능성담체, 흡착담체, 그리고 다공성담체를 사용하였는데, 기능성담체의 처리효율이 T-N 97%, T-P 94.75%로서 가장 높은 것으로 밝혀졌다. 또, 담체들을 혼합하여 처리효율을 살펴본 결과, 처리효율은 T-N 98.5%, T-P 96.19%로서 담체들을 각각 사용하는 경우보다 더 높은 효율을 나타냈다. In korea Wastewater treatment plants from aerobic process that organic remove was efficiency treatment but do not eliminate drain in the lake and river nitrogen and phosphorus by cause of eutrophication. This study was have designed pilot plant for fixed manufactured A2/O process and using the ceramics process. And test of wastewater treatment efficiency for effective treatment of nitrogen and phosphorus in wastewater. In case of A2/O modification process without ceramics, the removal efficiency of the process for T-N, T-P are 94%, 91.1% respectively. We have used three kinds of ceramics, those are functional, porous, and adsorptive. The functional ceramic showed the highest removal efficiency among them. In case of the process using three kinds of ceramics simultaneously, the removal efficiency of the process for T-N, T-P are 98.5%, 96.2% respectively.

Ⅲ급 부정교합자의 두개안면골의 특성

백현숙,경희문,성재현 慶北大學校 齒科大學 1991 慶北齒大論文集 Vol.8 No.2

The study was desinged to investigate the difference of craniofacial structures between normal occlusion and Angle's Class Ⅲ malocclusion. The lateral cephalograms were obtained from 36 males and 39 females with class Ⅲ malocclusion, and 39 males and 35 females with normal occlusion. The results obtained were as follows: · The maxilla of Class Ⅲ malocclusion sample was more retruded than that of normal occlusion sample. · A wide variation was observed in the measured position of the maxilla relative to SN plane and FH plane. · Thirty percent of Class Ⅲ sample had retruded maxilla(SNA<79.4°) The measurement of the distance from point A to the nasion perp. line exhibited quited different findings with 58% of the Class Ⅲ sample exhibiting a retrusive maxilla(A to Na perp. line < -1.0). · The mandible of Class Ⅲ malocclusion sample was more protruded than that of normal occlusion sample. · Fifty to seventy percent of Class Ⅲ molocclusion sample showed mandibular protrusion. · No Significant difference was observed in maxillary base inclination between Class Ⅲ malocclusion sample and normal occlusion sample, but mandibular base inclination(FMA) was larger in Class Ⅲ molocclusion sample. · Anterior cranial base length of Class Ⅲ malocclusion sample was shorter in male than that of normal occlusion sample, but posterior cranial base was shorter in female. · Mandibular body length of Class Ⅲ molocclusion sample was significantly larger than that of normal occlusion sample. · Maxillary body length of Class Ⅲ malocclusion sample was shorter than that of normal occlusion sample. · No differences were observed in saddle angle between both sample. · Gonial angle was significantly larger in Class Ⅲ malocclusion sample. · Basal reference planes(SN plane, FH plane) were considerably influenced on the evaluation of facial structures. · According to finding above, Charateristics of craniofacial structures in Class Ⅲ malocclusion were retruded maxilla, protruded mandible, short maxillary length, large mandibular length, high mandibular plane angle and large gonial angle

信用狀統一規則 海上船荷證券條項의 改正에 관한 考察

文熙哲,徐百鉉 충남대학교 경상대학부설 경영경제연구소 1997 경영논집 Vol.13 No.1

본 연구는 신용장통일규칙의 개정과정에 관한 역사적 고찰을 통해 특히 해상선하증권조항의 변화를 가져온 주요 요인이 무엇인가에 대해 규명하고 있다. 신용장통일규칙 해상선하증권조항의 주요 개정원인은 운송관행 및 운송서류 작성관행의 변화, 해석의 명확성 및 용이성 제고, 국제규칙과의 조화 등으로 요약할 수 있다. 본 연구는 향후 신용장통일규칙 운용서류 관련조항의 개정방향에 대한 이론적 토대를 제공하는 한편, 국제무역관행 및 국제규칙의 변화에 따른 신용장 통일규칙의 문제점 및 개정방향에 관한 후속연구에 기초자료로 활용될 수 있을 것이다.

등방-그라파이트의 고온 열물성

채희백 순천향대학교 기초과학연구소 1995 순천향자연과학연구 논문집 Vol.1 No.1

We measured high temperature thermophysical properties of POCO-AXM-5Q1 graphite which has been used as a reference standard material from NIST(National Institute of Standards and Technology). Thermal diffusivity an specific heat were measured in a temperature range 300∼1400K with laser flash method. Specific heat is modeled by the Debye phonon model. Thermal conductivity can be calculated by the measured specific heat and the measured thermal diffusivity. Electrical conduction and thermal conduction are correlated as the Wiedemann-Frantz law which is modeled with the free electron gas. High temeprature thermal conduction is governed by the phonon-phonon scattering as U-process or N-process. The combined model is fitted to the data and analysed.

대기중에서 polymer의 레이저 크레이터링

채희백,이수빈,홍진수,김승우 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.2

Nd-Yag pulsed laser(210mJ, 6ns) was focused on polymer to make craters in an atmosphere. The size of the crater has a trend to follow the ideal estimation. Laser-firing near the focal point in air could be an energy dissipation of laser and a possible cause of the crater size reduction. Multiple plasma image and normal eruption of the plasma was also studied with photographs.

Pseudorabies 바이러스를 이용한 흰쥐 자궁의 신경지배에 관한 연구

이봉희,최완성,조경제,권해영,배지홍,송준경,이흥식,백상호 대한해부학회 1993 Anatomy & Cell Biology Vol.26 No.3

유크리트 반환의 유한개의 준소 Q-이데알에 관하여

김희식,백승일 聖心女子大學校 1983 論文集 Vol.14 No.2

반환 R의 Q-이데알 I와 그의 상환 R/I가 nil이면 R이 nil 반환이 됨을 보이고 유크리트 반환의 같은 소이데알과 연관된 유한개의 준소 Q-이데알들의 교집합도 준소 Q-이데알이 됨을 보임. In this paper, we study that if a semiring R contains a Q-ideal I such that I and R/I are both nil then R is also a nil semiring, and if I₁, I₂, …, ??are a finite set of primary Q-ideals of the Euclidean semiring R, all of them having the same associated prime ideal P, then ?? is primary Q-ideal.

Si₃N₄-SiC Nanocomposite의 열전도도

채희백,정영석,이태기 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.2

Nano-sized SiC particles of 1, 10, 20 and 30 vol% were dispersed in a-Si₃N₄ matrix and hot-pressed under the condition of 30 MPa of N₂ at 1850℃. Thermal conductivity of Si₃N₄-SiC nanocomposite was measured between 300 K and 400 K. Si₃N₄-20 vol% SiC showed the lowest thermal conductivity. In growth Si₃N₄, SiC-nano particle could be a nucleation site and dispersion is maximized in the Si₃N₄-matrix when the vol% is 20. More than 20 vol% SiC, SiC particles are located on the Si₃N₄ boundaries. Thus, phonons are scattered well in Si₃N₄-20 vol% SiC with the dispersed SiC and thermal resistance(conductivity) is high(low). Similar behavior was reported in the electricl resistivity and fracture toughness.

廢水溶液으로부터 슬래그형 휠타 사용에 의한 카드뮴 및 크롬이온의 제거

李羲彰,河白顯 漢陽大學校 環境科學硏究所 1988 環境科學論文集 Vol.9 No.-

본 논문은 폐수에 존재하는 Cd(Ⅱ) 이온과 Cr(Ⅲ) 이온을 제거할 때 slag filter와 sand filter를 사용하여 제거 효율과 실행 가능성에 대해서 연구하였다. 유출수와 제거과정에서 여재 slag와 sand를 비교하였다. 여재 slag의 유효 입경은 0.45 ㎜, 균등계수는 1.67이고 sand의 유효 입경은 0.46 ㎜, 균등계수는 1.35의 것을 사용하였다. pH가 7에서 100 ㎎ Cd/ℓ의 인공폐수를 sand와 slag column에 통과시켰을 때 slag filter는 최초 Cd농도의 60~70%가, sand filter은 5~10%가 제거되었으며 Cd제거시 최적 pH는 7이고 sand column의 열세척은 slag column보다 1.5배 정도가 좋았다. pH가 7에서 인공폐수를 slag와 sand에 통과시키면 slag column의 제거효율은 62hr내에 99.7%에 달했고, sand column에서는 28.5%이었다. This study was carried out to investigate the feasibility and removal efficiency of Cd(Ⅱ) and Cr(Ⅲ) ions removals from the simulated wastewater solution by using slag media type filter. The results of the slag filter were compared to coventional sand filter at the point of view of effluent quality and removal performance. The obtained effective size and coefficient uniformity were 0.45㎜ and 1.67 in slag, 0.46㎜ and 1.35 in sand respectively. At pH7, imulated wastewater, 100㎎ Cd/ℓ was passed through both filter columns. The slag filter showed 60 to 80 percent removal efficiency of the initial Cd concentration, while the sand filter showed only 5 to 10 percent. Optimum pH value for Cd removal showed 7, obtained optimum back wash frequency of slag column was 1.5 times less than of sand. With the simulated wastewater having ionic concentration of pH7 the removal efficiency of the slag column and metal concentration of 100㎖/ℓ revealed 99.7 percent during 62hrs, while that of the sand column was 28.5 percent.