Ar / Ar-H2 플라즈마 및 전자선 용해에 의한 인바 및 퍼멀로이 Fe-Ni 합금의 정련

박병삼,백홍구 ( Byung Sam Park,Hong Koo Baik ) 한국주조공학회 1995 한국주조공학회지 Vol.15 No.2

N/A It is difficult to remove such interstitial impurities as sulfur, oxygen, hydrogen and carbon in Fe-Ni alloys. Thermodynamic and kinetic studies were carried out on the behavior of hydrogen gas, oxygen gas, Si, Al and slag, and the reaction time by the Ar/Ar-H₂ plasma and electron beam melting. After the addition of Al, Si, they were melted by Ar plasma with reaction time changed. 80%Ni-Fe alloys showed a better deoxidation than 36%Ni-Fe alloys. At Ar-H₂ plasma melting, the deoxidation was significant. In the case of the electron beam melting, the residual oxygen was higher than in Ar plasma melting because electron beam melting temperature was lower than that of Ar plasma. For the decaburization, it was melted by Ar-O₂plasma melting, which could remove effectively carbon by activated oxygen in plasma. We added slag to Fe-Ni alloys for the desulfurization. As the result of this experiments, the amount of residual sulfur was not changed according to the slag ratio and reaction time.

Relative Skeletal Muscle Mass Is Associated with Development of Metabolic Syndrome

박병삼,윤지성 대한당뇨병학회 2013 Diabetes and Metabolism Journal Vol.37 No.6

Background: Visceral adiposity is related to insulin resistance. Skeletal muscle plays a central role in insulin-mediated glucose disposal; however, little is known about the association between muscle mass and metabolic syndrome (MS). This study is to clarify the clinical role of skeletal muscle mass in development of MS. Methods: A total of 1,042 subjects were enrolled. Subjects with prior MS and chronic diseases were excluded. After 24 months,development of MS was assessed using NCEP-ATP III criteria. Skeletal muscle mass (SMM; kg), body fat mass (BFM; kg), and visceral fat area (VFA; cm2) were obtained from bioelectrical analysis. Then, the following values were calculated as follows: percent of SMM (SMM%; %): SMM (kg)/weight (kg), skeletal muscle index (SMI; kg/m2): SMM (kg)/height (m2), skeletal muscle to body fat ratio (MFR): SMM (kg)/BFM (kg), and skeletal muscle to visceral fat ratio (SVR; kg/cm2): SMM (kg)/VFA (cm2). Results: Among 838 subjects, 88 (10.5%) were newly diagnosed with MS. Development of MS increased according to increasing quintiles of BMI, SMM, VFA, and SMI, but was negatively associated with SMM%, MFR, and SVR. VFA was positively associated with high waist circumference (WC), high blood pressure (BP), dysglycemia, and high triglyceride (TG). In contrast, MFR was negatively associated with high WC, high BP, dysglycemia, and high TG. SVR was negatively associated with all components of MS. Conclusion: Relative SMM ratio to body composition, rather than absolute mass, may play a critical role in development of MS and could be used as a strong predictor.

Predicting Mortality of Critically Ill Patients by Blood Glucose Levels (Diabetes Metab J 2013;37:385‐90)

박병삼,윤지성 대한당뇨병학회 2014 Diabetes and Metabolism Journal Vol.38 No.1

6.4cm 크기의 일방향 성장된Y$Ba_2$$Cu_3$$O_x$ 제조

박병삼,한상철,한영희,정년호,윤희중,김경진,성태현,오제명 한국초전도학회 2004 Progress in superconductivity Vol.5 No.2

We fabricated large single grain YBa$_2$Cu$_3$O$_{x}$ (Y-123) superconductors. The single grain Y-123 was grown by top seeded melt growth (TSMG) method. In a conventional box furnace with uniform temperature distribution, it was very difficult to grow large single grain Y-123 superconductors due to the size limitation in growth. To overcome the size limitation, we applied a radial thermal gradient (lower temperature at sample center and higher temperature on the sample edge) to the TSMG process. In this case, large single grain Y-123 could be easily grown. This is attributed that the liquid of the sample edge was maintained at the high temperature compared to the growth front. Using this method, we successfully fabricated a large single grain Y-123 of 6.4 cm X6.4 cm

團體交涉과 勞使協議制에 관한 硏究

박병삼 충남대학교 법경대학 경영동우회 1991 經友論集 Vol.22 No.-

Predicting Mortality of Critically Ill Patients by Blood Glucose Levels

박병삼,윤지성,문준성,원규장,이형우 대한당뇨병학회 2013 Diabetes and Metabolism Journal Vol.37 No.5

Background: The aim of this study is to observe the outcome of critically ill patients in relation to blood glucose level at admission and to determine the optimal range of blood glucose at admission predicting lower hospital mortality among critically ill patients. Methods: We conducted a retrospective cohort study of a total 1,224 subjects (males, 798; females, 426) admitted to intensive care unit (ICU) from 1 January 2009 to 31 December 2010. Blood glucose levels at admission were categorized into four groups (group 1, <100 mg/dL; group 2, 100 to 199 mg/dL; group 3, 200 to 299 mg/dL; and group 4, ≥300 mg/dL). Results: Among 1,224 patients, 319 patients were already known diabetics, and 296 patients died in ICU. Five hundred fifty-seven subjects received insulin therapy, and 118 received oral hypoglycemic agents. The overall mortality rate was 24.2% (296 patients). The causes of death and mortality rates of diabetic patients were not different from nondiabetic subjects. The mortality curve showed J shape, and there were significant differences in mortality between the groups of blood glucose levels at admission. Group 2 had the lowest mortality rate (P<0.05). Conclusion: These results suggest that serum glucose levels upon admission into ICU is associated with clinical outcomes in ICU patients. Blood glucose level between 100 and 199 mg/dL at the time of ICU admission could predict lower hospital mortality among critically ill patients.

Adequate Glucose Control In Intensive Care Unit (초)

박병삼,원규장,이형우,윤지성 대한내과학회 2012 대한내과학회 추계학술대회 Vol.2012 No.1

1992년도 춘계 학술강연 및 발표대회 개요 - 강연 · 제련 ( 발표 3 ) : Ar / Ar - H2 플라즈마에 의한 인바 및 퍼멀로이 Fe - Ni 합금의 정련에 관한 연구

박병삼,홍진석,백홍구 대한금속재료학회 ( 구 대한금속학회 ) 1992 대한금속재료학회 학술대회 개요집 Vol.1992 No.1

Ar / Ar - H2 플라즈마에 의한 탄탈륨 ( Ta ) 의 환원 및 정련에 관한 연구

박병삼,정용석,백홍구 대한금속재료학회 1991 대한금속재료학회 학술대회 개요집 Vol.1991 No.0

헬리코박터 음성 혹은 제균에 반응이 없는 위 점막 연관 림프조직 림프종에서 방사선 치료의 임상적 유용성

박병삼 ( Byung Sam Park ),이시형 ( Si Hyung Lee ) 대한소화기학회 2019 대한소화기학회지 Vol.73 No.1

목적: 헬리코박터 파일로리(H. pylori) 제균 치료는 위 MALT 림프종 치료에 효과적인 방법이다. 그러나 H. pylori 감염 증거가 없거나 H. pylori 제균 치료에 반응을 보이지 않는 위 MALT 림프종 환자에서 여러 가지 치료 방안이 제시되고 있으나 아직까지 일치된 방안이나 권고가 없는 실정이다. 이에 저자들은 H. pylori 제균 치료에 반응을 보이지 않거나 H. pylori 감염의 증거가 없는 환자에서 방사선 치료와 같은 H. pylori 제균 치료 외 치료 방안의 치료적 효과 및 임상 양상을 알아보고자 본 연구를 진행하였다. 대상 및 방법: 2005년 1월부터 2016년 12월까지 영남대학교 의료원에서 위 MALT 림프종을 진단받은 환자들을 대상으로 후향적 연구를 시행하였다. 내시경 및 내시경 조직 검사를 시행하여 위 MALT 림프종을 진단하였으며, 질환의 병기 및 H. pylori 감염 상태에 따라 H. pylori 제균 치료, 항암화학요법, 방사선 치료 중 한 가지 방법으로 치료를 하고 치료 반응 및 임상 경과를 평가하였다. 결과: 전체 68명이 위 MALT 림프종으로 진단되었으며, 최종 50명의 환자가 본 연구의 대상자로 선정되었다. 평균 나이는 55.4±11.7세였고, 평균 추적 관찰 기간은 42.5±31.0개월이었다. 42예의 H. pylori 양성 위 MALT 림프종 환자 중 36예(85.7%)에서 H. pylori 제균 치료를 1차 치료로 시행하였으며, 25예(69.4%)에서 완전 관해에 도달하였다. H. pylori 제균 치료 후 완전 관해에 도달하지 못한 11예(30.6%)에서 2차 치료로 방사선 치료를 시행하였으며, 모든 환자가 완전 관해에 도달할 수 있었다. H. pylori 양성인 위 MALT 림프종 환자 중 2예은 1차 치료로 H. pylori 제균 치료와 동시에 방사선치료를 시행하였고, 2예 모두 완전 관해를 보였다. H. pylori 감염의 증거가 없는 8예는 1차 치료로 방사선 치료를 시행하였고, 모두 완전 관해를 달성하였다. 1차 또는 2차 치료로 방사선 치료를 받은 21예는 모두 치료 후 완전 관해에 도달하였으며, 1예에서 추적 관찰 기간 동안 위 MALT 림프종이 진행하였고 방사선 치료를 받은 환자의 5년 무진행 생존율은 92.9%였다. 결론: 방사선 치료는 H. pylori 음성 위 MALT 림프종과 H. pylori 제균 치료에 반응을 보이지 않는 H. pylori 양성 위 MALT 림프종의 치료에 효과적인 치료 방안이 될 수 있다. Background/Aims: The eradication of Helicobacter pylori (H. pylori) is an effective treatment in gastric mucosa-associated lymphoid tissue (MALT) lymphoma associated with H. pylori infection. However, the treatment strategy in gastric MALT lymphoma patients who are H. pylori-negative or unresponsive to H. pylori eradication therapy remains controversial. In this study, we investigated the clinical efficacy of treatments other than H. pylori eradication therapy in these groups of patients. Methods: This was a retrospective single-center study based on the medical records of patients diagnosed with gastric MALT lymphoma at Yeungnam University Medical Center between January 2005 and December 2016. Patients were treated with H. pylori eradication therapy, chemotherapy, or radiotherapy according to their H. pylori infection status and stage of gastric MALT lymphoma. Results: Of the 68 eligible patients, 50 were enrolled in the study. Of the 42 patients with H. pylori-positive gastric MALT lymphoma, 36 (81.7%) were treated with H. pylori eradication therapy as primary treatment and 25 (69.4%) achieved a complete response (CR). Patients without a CR after H. pylori eradication therapy (n=11, 30.6%) received radiotherapy as a secondary treatment. Two patients with H. pylori-positive gastric MALT lymphoma and eight with H. pylori-negative gastric MALT lymphoma received radiotherapy as the primary treatment. CR was achieved in all 21 patients treated with radiotherapy as primary or secondary treatment. The 5-year progression- free survival rate after radiotherapy was 92.9%. Conclusions: Radiotherapy may be a worthwhile treatment option in patients with H. pylori-negative MALT lymphoma or H. pylori-positive MALT lymphoma that is not responsive to H. pylori eradication therapy. (Korean J Gastroenterol 2019;73:19-25)