自律性 結節性 甲狀腺腫에 關한 硏究

曺敏銶,崔仁永,金侊會,崔振學 한일병원 1975 한일병원 임상잡지 Vol.4 No.2

최소 가열처리를 통한 당근식초의 개발

조학래,신진한 동의공업대학 1999 論文集 Vol.25 No.1

Developing for the carrot vinegar, the carbohydrate of carrot was hydrolyzed with the hydrolyzing enzymes such as Termamyl, Dextrozyme and Viscozyme using for the substrates of alcohol and acetic acid fermentation. For retaining the native color and flavour of carrot in the final vinegar product, minimal heat treatment of crushed carrot was introduced, In the course of pasteurization treatment of crushed carrot for 30minutes at 70℃, Termamyl was added to it for the enzymatic hydrolysis reaction. After that, the temperature of the crushed carrot solution was reduced to the optimum temperature of each hydrolyzing enzymes, step by step. The temperature of carrot solution was reached to 60℃. Dextrozyme was added and maintained for 1 hour at the temperature. Then Viscozyme was added and remained for 1hour at 45℃. After the enzymatic hydrolysis reaction, the reducing sugar concentration 7.0% of crushed carrot was acquired. The carrot hydrolysate was adjusted reducing sugar concentration to 20.0% by adding Dextrose. In ethanol fermentation of the carrot hydrolysate, sterilization of the carrot hydrolysate could be omitted by inoculation of large amount of the seed culture of Sacchromyces cerevisiae to the hydrolysate, as the initial viable cell count of ferment was 10^(8)/ml and initial ethanol concentration was 1.0%. The ethanol concentration of the hydrolysate was reached to 11.0% by cultured for 7days at 30℃. The carrot hydrolysate adjusted to ethanol concentration 6.0% with water was inoculated with Acetobacter aceti and cultured statically for 30days at 30℃. The maximum acidity 6.8% of the solution was acquired.

위암 환자의 복강내 투여를 위한 Activated Charcoal-Alginate Bead 제형으로부터 Mitomycin C의 용출 거동

이진호,최선웅,서중기,김동민,정경수,오정연,김진향,노승무,민병무,김용백,김창식,박근성,강대영,송규상,양준묵,조준식,정현용,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherapy seems a logical choice for cancer chemotherapy. In this study, Mitomycin C (MMC)-activated charcoal (CH)-alginate (ALG) beads were prepared by the mixtures of CH particles adsorbed with MMC as an anti-cancer drug and aqueous alginate solution. The alginate is recognized as biodegradable, nontoxic, and biocompatible. The release of MMC from the beads in 0.1 M Tris buffer was stable and continuous until about 1 week. The MMC-CH-ALG beads can be applied in the peritoneal cavity for intraperitoneal chemotherapy since they provide a good adhesiveness on the tissue and controlled release pattern of the drugs.

액체막법에 의한 중금속이온의 분리 및 회수

曺文換,丁學鎭,이상인,金振浩,金始中 江原大學校 附設 環境硏究所 1994 環境硏究 Vol.11 No.-

거대고리 리간드는 금속이온과 선택적으로 결합하는데, 이를 이용하여 에멀젼 액체막을 통한 금속이온의 이동에 관하여 연구를 수행하였다. 금속이온은 유기층에 있는 운반체에 의하여 source phase에서 receiving phase으로 이동한다. 운반체로는 거대고리 리간드인 DBN_(3)O_(3)를 사용하였다. 여기에서 에멀젼 액체막을 통한 금속이온의 이동에 관한 요인과 어떤 금속이온의 선택적 분리에 관하여 검토하였다. 금속이온과 거대고리 리간드 그리고 금속이온과 receiving phase내에 있는 음이온에 대한 안정도 상수를 금속이온의 선택적 이동에 대한 척도로 조사하였다. 납이온이 혼합 용액에서 다른 금속이온보다 높은 이동속도를 나타내었다. Receiving phase내의 음이온이 금속이온의 이동에 중요한 역할을 한다. Receiving phase내에 있는 NO_(3)^(-)을 S_(2)O_(3)^(2-) 대치하면 이동량이 증가함을 보였는데 이는 Pb^(2-)-S_(2)O_(3)^(2-) 상호작용이 Pb^(2+)-NO_(3)^(-) 상호작용보다 크기 때문이다. Macrocyclic ligand has been know to selectively bind with metal ions so that ability applied for the transport of metal ions across the emulsion liquid membrane in this study. The metal ions are transproted from the source phase to the receiving phase by the carrier of the organic phase. Several factors involved in the transport of metal ions acrose the emulsion membrane we reported here and these factors proveided the informations for the selective seperation of some metal ion. Stability constants for cation-macrocyclic ligand and metal ion-anion receiving phase interaction are examined as parameters for the prediction of metal ion transport selectivities Pb^(2+) was transported higher rates than the other metal ions in the mixture solution. The interaction of metal ion to anion in receiving phase is important. S_(2)O_(3)^(2-) in replacement of NO_(3)^(-) in the receiving phase enhances the transport of pb^(2-) since Pb^(2-)-S_(2)O_(3)^(2-) interaction is greater than Pb^(2+)-NO_(3)^(+) interaction.

이상형 스테인레스강의 크롬질화물 석출과 상 방위관계 연구

최병학,김진우,고석민,조용석,김상식,이재현 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-

Microstructures in the directionally solidified duplex stainless steels were investigated in order to understand the effect of nitrogen addition and its precipitation in the α phase. It was found that the addition of nitrogen causes the formation of fine precipitates in α matrix and segregation phases of nitrogen in the α/γ interface. Both the fine precipitates and the segregation phases were identified as CrN(fcc, a=4.18Å), as a coherent phase related to the α-bcc matrix with crystal relationship of (200) CrN//(01￣1)α and (1￣1￣1)CrN//(3￣2￣1)α.

위암환자의 복강내에 투여한 Mitomycin C-Carbon Particle의 Mitomycin 용출에 관한 연구

노승무,조영훈,정경수,오정연,김진향,양준묵,강대영,송규상,조준식,최선웅,이진호,민병무,김용백,김창식,박근성,인현빈,정현용,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherpy seems a logical choice for cancer chemotherapy. The Mitomycin C(MMC) adsorbed by the activated charcoal particles(CH) is relatively released when the drug concentration surrounding the carbon particles becomes low in the peritoneum of the peritoneal cavity. For the intraperitoneal chemotherapy on the advanced gastric adenocarcnoma, mitomycin C adsorbed on activated carbon particles was administered in the peritoneal cavity just before abdominal wall closure. The closed drainage tubes were inserted in the peritoneal cavity and clamped for tuo hours after completion of operation. MMC concentrations were serially measured in peritoneal fluid, plasma and urine at 2hour, 48 hour, 72 hour and 168 hour following its administration in order to study the efficacy of the MMC-CH as a drug delivery system. There were minimal toxicities in born marrow, liver, and gastrointestinal system after intraperitoneal MMC-CH administration. The data of this study suggested that MMC-CH may have a somewhat more beneficial effect than surgery alone when administered in optimal dose and schedules, but the MMC concentration of the peritoneal fluid was not sufficient to eradicate remnant cancer cells, and effective duration of maintenance was only below 24 hours in the peritoneal fluid and plasma.

급성충소돌기염의 임상 : 병리학적 고찰

양기화,조준필,하영천,한진우,정학재,손수창,이성희,황재훈,신철호 최신의학사 1989 最新醫學 Vol.32 No.4

갑상선 미세 유두상 암의 임상적 특징

나병곤,배학연,조현진,김권천 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.3

Purpose: Papillary thyroid microcarcinoma (PTMC) is increasing in incidence because of ultrasound-guided fine-needle aspiration cyology (FNA). According to WHO, PTMC is defined as a papillary thyroid cancer of 1 cm or less in diameter. Within the group of patients with PTMC, prognosis is known to be very favorable. This study was carried out to evaluate the clinicohistological characteristics of PTMC and to determine a reasonable extent of surgery for them. Methods: From Mar. 2002 to Dec. 2007, 610 patients with thyroid diseases underwent thyroidectomy at Chosun University hospital. Among these patients, 205 patients (33%) had a thyroid papillary carcinoma less than or equal to 1 cm in great diameter. The clinicopathologic features and treatment outcome of these patients were evaluated retrospectively. Results: In the period 2002-2007, PTMC incidence rate in our institution increased from 10% to 20%. There were 19 men and 186 women with a median age of 46 years (range; 16-74). PTMC diameter ranged from 0.1 to 1 cm. (mean 0.54 cm) 15.7% of patients with PTMC presented with preoperative symptoms (palpable mass, fatigue, pain, hoarseness). Preoperatively 84.3% of these 205 cases were diagnosed by ultrasonography. We performed unilateral lobectomy (41%), near total thyroidectomy (44%), and total thyroidectomy (11%) with or without central compartment neck node dissection. During a mean follow-up of 36 months, 5 patients (2.4%) developed locoregional recurrence with no distant metastasis. There were no significant difference on recurrence rate by size, capsular invasion. But multiplicity of primary tumor has a higher locoregional recurrence rate (p= 0.04). The detection rate of PTMC is increasing due to FNA technique in our hospital. This study shows that PTMC may have capsular invasion, lymph node involvement, multiplicity and locoregional recurrence likely to larger (>1 cm) papillary carcinoma. Conclusion: We suggest that total or near total thyroidectomy with central compartment neck dissection is proper therapeutic operation for PTMC and modified neck dissection shoud be performed if lateral neck lymph node are enlarged or diagnosed as metastatic tumor.

용접부에 작용하는 구동력에 의한 용융풀 거동 분석

김일수,김학형,조선영,강봉용,강문진,유관종 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-

Over the last few years, there has been a growing interest in quantitative representation of the weld pools in order to relate the processing conditions to the driving forces of the weldment produced and to use this information for the optimization of the welding process. A theoretical model offers a powerful alternative to check the physical concepts of the welding process and the effects of driving forces. To solve this problem, a 2-D thermo-fluid model were developed for determining temperature and velocity distribution for the GMA welding process.

종격동 종괴를 의심케한 우대동맥궁 1례

김만우,백학연,정춘해,장경식,홍순표,조건국,김종진 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1

Developmental anomalies of the aortic arch, commonly known as vascular rings, are relatively rare congenital vascular anomalies which can compress the trachea and esophagus. One routine chest film of a patient who was checked and hepatoma-diagnosed in Internal Medicine, Chosun University Hospital left the room for doubt of mediastinal mass. But no subjective symptoms for the mass was told by the patient. This is to report our experience of a patient having right side aortic arch with aberrant left subclavian artery, as proved by diagnosis, but none of congenital heart disease. This right side aortic arch with aberrant left subclavian artery is the most frequent type among right aortic arch, the anomaly of which is usually detected from the incidental suspicion for mediastinal mass at routine chest film; because no symptoms are accompanied therewith.