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이상구,박종빈,양정모,김익표 한국수학교육학회 2004 수학교육 Vol.43 No.1
For finding the optimal strategy in Blackout game which was introduced in the homepage of popular movie "Beautiful mind", we develop a mathematical proof and an algorithm with a software. We only use the concept of basis and knowledge of basic linear algebra. This process can be extended to the fullsize Go table problem and shows why we have to study mathematics at the college level.
이익모,김상진,박순필,도종웅,주양자 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.1
A case of iatrogenic false aneurysm of the superficial temporal artery is presented. Direct injection of Urograffin into the pulsatile mass showed aneurysmal dilatation, 3×2㎝ sized, of the superficial temporal artery. Aneurysm excision is indicated to reduce the risk of hemorrhage from the subsequent head trauma, to relieve headache, and for any cosmetic defect. The authors have reviewed the literature, and discussed the incidence, classification, pathogenesis, clinical and angiographic diagnosis, differential diagnosis, and treatment.
이익모,김상진,박순필,정현태,도종웅,주양자 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.1
Advances in microneurosurgical treatment of arterial aneurysm have led to increased interest being focused on aneurysm situated within the posterior cerebral fossa. Despite this, reports of neurosurgical intervention in such cases are still rare and there is no report about the distal posterior cerebral artery aneurysm in Korea. An aneurysm of the posterior cerebral artery has been referred to as a "distinct rarity", making up about 0.26 to 2.7% of all cerebral aneurysms. Especially, the incidence of the distal posterior cerebral artery aneurysm is quite rare and most of them are saccular in shape and single in number. The authors report a case of P4 segment aneurysm of left posterior cerebral artery, successfully treated by clipping cross neck and reviewed the literature, and discussed their anatomy, clinical feature, location, and variable operative methods.
이익모,김상진,박순필,도종웅,주양자 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.1
One case of multiple intracranial aneurysms is presented. On carotid angiogram, nine aneurysmal sacs including a giant aneurysm of left middle cerebral artery were detected on the right distal anterior cerebral artery, anterior communicating artery, bifurcation of both internal carotid artery, both middle cerebral artery, and left posterior communicating artery. The authors reviewed the literature, and discussed the incidence, determining the site of rupture, and the operative methods of multiple intracranial aneurysms.
임신중 뇌동맥류의 외과적 치료 : 증례보고 A Case Report
이익모,김상진,박순필,도종웅,주양자 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.1
A multiparous 28-year-old woman, suffering ruptured intracranial aneurysm during pregnancy is presented. Clipping of the aneurysm was performed in 32 weeks of gestational age. Three weeks after operation, she delivered vaginally without complication. Delivery may be managed according to obstetrical indication following surgical correction of the aneurysm. The authors reviewed the literature, and discussed the neurosurgical and obstetric management of such patients.
뇌동맥류 수술시 Fenestrated Clip의 사용에 대하여 : Report of Four Cases
이익모,박순필,김상진,도종웅 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.5
Some aneurysms with peculiar shapes, large sized or in unusual location cannot be obliterated by ordinary methods. We present four cases using two kinds of fenestrated clips. There were 4 aneurysms in the 4 patients : 3 saccular and 1 fusiform aneurysm. Two aneurysms were located in anterior communicating artery, one left carotico-opthalmic artery, and one distal middle cerebral artery. All of the aneurysms were successfully obliterated. Our results suggest that the various shape of fenestrated clips may be benefit for clipping difficult aneurysms, which would not be clipped with ordinary one.
신경외과 영역에서 발생한 감염증 치료에 대한 Ceftezole의 효과
이익모,박순필,김상진,도종웅 中央醫學社 1987 中央醫學 Vol.52 No.12
Ceftezole is a new cephalosporin derivative which was born at Fujisawa research labora-tories on 1975. It. is known as broad-spectrum antibiotics especially sensitive to E. coil, Kleosiella spp. Staphylococcus, Streptococcus, Salmonella, Shigella etc., and known as anti-biotics of wide safety range. To study the clinical effect of ceftezole on the infected patients of neurosurgery, we administered ceftezole as first antibiotics before the microorganisms and sensitivities were identified. The results were as follows: 1) Without the identification of microorganisms and sensitivities, ceftezole was ad-ministered as first drug and there was clinical improvement of 76% of all cases. 2) When we compared microorganisms between the pretreatment and post treatment, S. aureus, E. coil, ?-streptococcus, peptostreptococcus were lightly sensitive to ceftezole. 3) There were no specific side effects on administering ceftezole.
소수성 NaY Zeolite의 합성과 탈알루미나의 특성
서동남,하종필,구상모,이해진,김익진 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1
NaY형 Zeolite는 현재 그들의 촉매적 특성과 흡착성 그리고 이온 교환성들을 이용하여 산업에 중요하게 사용되어지고 있다. 본 실험은 고온 스팀을 이용한 방법과 산처리에 의한 방법으로 탈알루미나의 효과를 확인하는 실험을 하였다. 먼저 SiO_2/Al_2O_3 몰비가 4∼6인 합성 NaY zeolite를 분위기 소성로에 넣고 증기발생 장치를 이용하여 500℃에서 고온 스팀을 분위기 소성로에서 일정하게 주입하였다. 에에 따른 결과는 탈알루미나 처리 후의 XRF와 BET의 결과로 탈알루미나 처리에 따라서 SiO_2/Al_2O_3의 몰비가 20.6에서 21까지 증가한 것을 알 수 있으며 또한 BET의 결과에서 탈알루미나 처리에 의해서 비표면적이 증가한 것을 확인할 수 있으며 특히 meso pore area의 증가는 탈알루미나에 의해서 zeolite의 골격구조가 일부 파괴되었음을 알 수 있다.
방전플라즈마 소결법에 의해 제조된 Mo 타겟의 스퍼터링 특성평가
김민정 ( Min Jung Kim ),양준모 ( Jun Mo Yang ),유정호 ( Jung Ho Yoo ),정칠성 ( Chil Sung Jeong ),박현국 ( Ik Hyun Oh ),오익현 ( Hyun Kuk Park ),이갑호 ( Kap Ho Lee ) 대한금속재료학회(구 대한금속학회) 2013 대한금속·재료학회지 Vol.51 No.8
The microstuructural properties and electrical characteristics of sputtering films deposited with Mo targets prepared by commercial hot isostatic pressing (HIP) and spark plasma sintering (SPS) were compared and analyzed. The analysis results revealed that the Mo films obtained from the SPS Mo targets had a quite similar resistivity and microstructure as the commercial HIP ones. Further, characteristics of the Mo films according to the sputtering conditions were investigated by XRD, SIMS and TEM techniques. Such films are expected to be used as electrode materials for display/solar cell devices. (Received October 29, 2012)
Ik-Mo Lee,Ook-Jae Cho,Devon W. Meek,Chan-Yong Kim Korean Chemical Society 1993 Bulletin of the Korean Chemical Society Vol.14 No.5
The types of the products of the reactions between RuH(NO)(Cyttp) and alkynes are sensitive to the nature of alkynes. Terminal, nonactivated alkynes (HC${\equiv}$CR, R=Ph, hexyl and $CH_2OH)$ produce acetylide complexes and terminal (HC${\equiv}$CR, R=C(O)Me, COOEt) or internal activated ones (RC${\equiv}$ CR, R=COOMe) lead to form alkenyl complexes. On the other hand, internal nonactivated alkynes (RC${\equiv}$CR, R=Ph) do not show reactivity toward RuH(NO)(Cyttp). These products can be rationalized by the cis-concerted mechanism but the radical pathway appears to work in the reaction of propargyl chloride. From the spectroscopic data, the trigonal bipyramidal structure with a linear NO group is proposed for these products.