[서평] 오카모토 다쿠지, 『근대일본의 과학론: 메이지유신에서 패전까지』 (나고야대학출판회, 2021). 552쪽 [岡本拓司, 『近代日本の科学論:明治維新から敗戦まで』, (名古屋大学出版会, 2021).]

김범성 한국과학사학회 2021 한국과학사학회지 Vol.43 No.3

일본 과학기술문화활동의 동향 및 새로운 모색

김범성 과학기술정책연구원 2005 과학기술정책 Vol.- No.152

2SG-3 Phase Controlling of Sintered Ti-Nb Alloys

김범성,( Muhammad Aneeq Haq ) 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

Titanium (Ti) scrap utilization as raw materials charge in the Ti industry has grown from 30% in 1970s to 50% currently and still increasing owing to the lower cost of production. The use of low cost, recycled Ti can enable its use in industries where price plays a key role. In addition it can play an important part in preserving the environment. The α+β Titanium alloys currently are under intensive research due their excellent blend of mechanical properties such strength, toughness and ductility. In this work, fabrication of low cost Ti-20Nb binary alloy has been done using Spark plasma sintering (SPS). Sintering was done for short time at 900℃ and 40 MPa Pressure of Ti and Nb powder blend. Next, heat treatment alloy was done between 900-1100℃ for various time durations. FE-SEM, EDS and XRD analysis was done to characterize the resultant alloy. The resultant microstructure contained dispersed β-phase grains in α-phase matrix with Nb particles completely dissolved.

보훈의 상징성과 화폐도안문제에 관한 연구

김범성 한국보훈학회 2007 한국보훈논총 Vol.6 No.1

본 논문에서는 화폐도안의 상징성과 국가정체성에 대한 논의를 통해 다음과 같은 결론을 제시하였다. 첫째, 대한민국 화폐의 인물도안은 대한민국의 국가정체성을 상징하는 인물이 들어가야 한다. 둘째, 현재의 화폐에 포함된 3명의 인물도안은 대한민국의 정체성에 부합하지 않는 인물도안이다. 셋째, 국가보훈문화 확산의 전략적 방안으로서 화폐 인물도안을 국가보훈의 상징성 측면에서 접근해야 한다. 이상의 결론에 근거하여 구체적인 실천방안을 세가지 제안하였다. 첫째, 고액권 화폐의 도안으로 채택될 인물은 대한민국의 국가정체성을 상징하는 인물이어야 한다. 둘째, 대한민국의 국가정체성에 부합하지 않는 기존 3개 지폐의 인물도안도 모두 바꾸어야 한다. 셋째, 한국은행의 화폐도안 자문위원회의 구성에 미술가나 역사가 이외에도 대한민국의 국가정체성을 잘 반영할 수 있는 사람들을 포함시켜야 한다. 나아가 화폐도안권한을 국가보훈처나 혹은 국가보훈위원회와 같은 국가정체성을 가장 잘 반영할 수 있는 부처로 이관하는 것이 바람직할 것이다.

Slow Coronary Flow is Related to Increased Carotid Intima-Media Thickness but Not Pulse Wave Velocity

김범성,김현중,한성우,김성해,서순용,정상만,유규형 대한심장학회 2011 Korean Circulation Journal Vol.41 No.11

Background and Objectives: Slow coronary flow (SCF) is characterized by delayed contrast dye opacification without significant stenosis of epicardial coronary arteries. However, the pathophysiology and clinical implications of SCF are not fully understood. Some reports have suggested that SCF might be caused by atherosclerosis in the coronary artery microvasculature. Measuring carotid intima-media thickness (IMT) and pulse wave velocity (PWV), which are non-invasive and simple diagnostic tools, was developed to detect subclinical atherosclerosis. Thus, we determined IMT and PWV, and their possible relationship in a SCF group and a normal coronary flow (NCF) group of patients. Subjects and Methods: We included 101 patients who complained of chest pain but had a normal coronary angiogram. Thrombolysis in Myocardial Infarction frame count (TIMI frame count, TFC) was evaluated in the left and right coronary arteries. We defined SCF as a TFC of more than 25. Carotid IMT was measured by ultrasonography in both common carotid arteries. PWV was calculated from pulse transit time between the brachial and ankle arteries. Results: Fifteen patients were included in the SCF group and 86 patients in the NCF group. Male patients (n=11, 73.3%) were significantly more common in the SCF group than in the NCF group (n=37, 43.0%, p<0.05). The TFC of the SCF and NCF groups were 28.8±3.5 and 15.7±4.5, respectively. The carotid IMT in the SCF group increased significantly compared to that in the NCF group (1.2±0.3 mm vs. 0.8±0.1 mm, p<0.01). However, no significant difference in PWV was observed between the two groups. Conclusion: SCF may reflect early atherosclerotic changes in the coronary artery microvasculature.

Long-term Survival Benefit of Statin in Patients with Coronary Chronic Total Occlusion without Revascularization

김범성,양정훈,장우진,송영빈,한주용,최진호,최기홍,김성해,천우정,권현철,최승혁 대한의학회 2018 Journal of Korean medical science Vol.33 No.18

Background: Limited data are available on the efficacy of statin therapy in stable ischemic h disease with chronic total occlusion (CTO) without revascularization. We investigated wheth statin therapy could be beneficial in stable patients with CTO without revascularization. Methods: From March 2003 to February 2012, 2,024 patients with at least one CTO were enrolled in a retrospective, single-center registry; 664 of these patients were managed conservatively without an initial revascularization strategy. Among them, we excluded CT cases involving acute coronary syndrome, in-hospital death or incomplete data and classifi 551 patients into statin (n = 369) and non-statin (n = 182) groups according to use of statin discharge. Propensity score matching analysis was also performed in 148 pairs. The prima outcome was cardiac death. Results: The median overall follow-up duration was 45.7 months (interquartile range: 19.9–70.5 months). Cardiac death occurred in 22 patients (6.0%) in the statin group vs. 24 patients (13.2%) in the non-statin group (P < 0.001). In propensity score matching analysi statin therapy was associated with a low risk of cardiac death (adjusted hazard ratio [HR], 0.39; 95% confidence interval [CI], 0.18–0.85; P = 0.022) and major adverse cardiac event (adjusted HR, 0.66; 95% CI, 0.43–0.98; P = 0.043). On multivariate analysis, independent predictors for cardiac death were age > 70 years, renal insufficiency, prior myocardial infarction, left ventricular ejection fraction < 40%, proximal-to-mid CTO location, and no use of statin in CTO patients. Conclusion: Statin therapy at discharge may be associated with a reduction in long-term cardiac mortality in stable CTO patients without revascularization.

엉치엉덩관절염에 합병된 엉덩허리근 농양 1예

김범성,서태호,고순영,이승민,김해림,이상헌 대한류마티스학회 2006 대한류마티스학회지 Vol.13 No.4

Both pyogenic sacroiliitis and iliopsoas muscle abscess are relatively uncommon infectious entities, and their coexistence has been reported in few patients. Its insidious and obscure clinical manifestations can cause the diagnostic delays, resulting in high mortality and morbidity. But, the proper management with appropriate antibiotics and percutaneous drainage of the abscess has showed the satisfactory outcomes in most patients with iliopsoas abscess. In this report, we present a case of 45-year-old male with diabetes mellitus who had an iliopsoas abscess complicated by sacroiliitis.

한국 최고경영팀의 경력성공 예측요인에 관한 연구 - 재무성과, 경영역량, 그리고 인구통계요인 : 한국 최고경영팀의 경력성공 예측요인에 관한 연구

김범성,박헌준,이병철 한국인사ㆍ조직학회 2003 한국인사ㆍ조직학회 발표논문집 Vol.- No.-

이 논문은 한국 대기업 최고경영팀의 경력성공에 영향을 미치는 여러 가지 요인들에 관한 실증조사이다. 특히, 재무성과, 경영역량, 그리고 인구통계요인이 어떻게 최고경영팀의 경력성공에 영향을 주는가가 이 논문에서 분석되었다. 20개 기업의 4개년간에 걸친 80개 최고경영팀을 분석한 결과는 다음과 같다; 1) 최고경영팀의 경영역량과 인구통계요인은 경력성공에 영향을 주는 반면 기업성과는 영향을 주지 못하였다. 2) 최고경영팀의 경영역량의 수준과 상호보완성은 경력성공에 유의미한 영향을 미치고 있으며, 특히 경영역량의 수준은 경영역량의 상호보완성보다 경력성공에 대한 영향이 보다 크다. 3) 팀근속, 팀연령, 그리고 교육배경다양성과 같은 인구통계요인들은 최고경영팀의 경력성공에 부정적인 영향을 주고 있다. 연구결과의 경영자 인적자원의 전략적 관리에 대한 함의가 논의되었다.

정부산하기관 CEO의 혁신행동에 대한 탐색전 연구 : 솔선수범을 중심으로

김범성 한국디지털정책학회 2007 디지털융복합연구 Vol.5 No.1

나노복합분말의 치밀화중 분산상 Ni의 성장기구

김범성,이재성,오승탁,좌용호 한국분말야금학회 2000 한국분말재료학회지 (KPMI) Vol.7 No.4

The property and performance of the nanocomposites have been known to strongly depend on the structural feature of Ni nanodispersoids which affects considerably the structure of matrix. Such nanodispersoids undergo structural evolution in the process of consolidation. Thus, it is very important to understand the microstructural development of Ni nanodispersoids depending on the structure change of the matrix by consolidation. The present investigation has focused on the growth mechanism of Ni nanodispersoids in the initial stage of sintering. powder mixtures were prepared by wet ball milling and hydrogen reduction of and Ni oxide powders. Microstructural development and the growth mechanism of Ni dispersion during isothermal sintering were investigated depending on the porosity and structure of powder compacts. The growth mechanism of Ni was discussed based upon the reported kinetic mechanisms. It is found that the growth mechanism is closely related to the structural change of the compacts that affect material transport for coarsening. The result revealed that with decreasing porosity by consolidation the growth mechanism of Ni nanoparticles is changed from the migration-coalescence process to the interparticle transport mechanism.