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물시멘트비 및 페이스트공극비에 따른 포러스콘크리트의 기초적 성질에 관한 실험적 연구
반성수,문정필,박선규,백용관,김규용,김무한 대한건축학회 1999 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.19 No.2
In recent years, due to increased awareness of the need for conservation of nonrenewable mineral resources, increased consideration is being given to the use of porous concrete in the world. The principal advantages claimed for porous concrete are economy in materials, somewhat higher thermal insulating values, lower shrinkage, lower unit weight and higher permeability. The major disadvantages are its low compressive, flexural, and bond strength. In this study, We measured compressive strength, void ratio and coefficient of permeability of porous concrete using crushed stone.
수아세포종(Medulloblastoma) 마이크로어레이 데이터에 대한 치료 실패 표적 유전자와 관련된 연관성 규칙 탐사
반성수,박희창 한국자료분석학회 2005 Journal of the Korean Data Analysis Society Vol.7 No.5
Microarray gene expression technology has been an increasingly important tool in biomarkers discovery. There are numerous potential clinical applications that could refine diagnosis and therapeutic monitoring as well as improve disease prevention through risk assessment and early detection. Many data mining techniques have been applied to microarray data analysis including various analysis tools, but very little literature exists on the application of association rules to microarray data. Association rules not only allow us to group similarly expressed genes but also help discern relationships between genes. We perform association rule data mining task with DNA microarray data of medulloblastoma patients having represented poor survival rate. We investigate association rules in genes of 21 treatment failure patients against patients showing 39 long term survival rate. 마이크로어레이 유전자 발현 기법은 생물 표적 유전자 발견을 위한 도구로서 그 중요성이 계속적으로 증가되어 왔다. 이 기법은 질환의 조기 발견과 위험군 평가를 통한 질병 예방이라는 측면 이외에도 진단과 치료적 감시를 개량한다는 점에서 잠재적으로 무수한 임상적 적용성을 가지고 있다. 이러한 마이크로어레이 데이터를 분석하기 위해서 군집 분석을 포함한 많은 데이터마이닝 기법이 사용되었지만 마이크로어레이 데이터에 연관성 분석을 적용한 것은 매우 소수의 문헌에만 보고되고 있다. 연관성 규칙은 유사하게 발현된 유전자를 분류할 뿐만 아니라 유전자들 사이의 관련성을 식별하는데 도움을 준다. 본 논문에서는 수아세포종(Medulloblastoma) 환자의 DNA 마이크로어레이 데이터에 대하여 연관성 규칙 탐사 작업을 수행하였는데, 39명의 비교적 장기 생존율을 보인 환자에 비해 21명의 희박한 생존율을 보인 환자의 유전자에 나타나 있는 연관성 규칙을 찾고자 하였다.
Metastasis Related Gene Exploration Using TwoStep Clustering for Medulloblastoma Microarray Data
반성수,박희창 한국자료분석학회 2008 Journal of the Korean Data Analysis Society Vol.10 No.3
Microarray gene expression technology has applications that could refine diagnosis and therapeutic monitoring as well as improve disease prevention through risk assessment and early detection. Especially, microarray expression data can provide important information regarding specific genes related with metastasis through an appropriate analysis. Various methods for clustering analysis of microarray data have been introduced so far. We used TwoStep clustering for ascertaining metastasis related gene distingue metastatic medulloblastoma from nonmetastatic. Through t-test between metastatic and non metastatic groups for two publicly available medulloblastoma microarray data sets, we intended to find significant gene for metastasis and to conform. The paper describes the process in detail showing how the process is applied to clustering analysis and t-test for microarray data sets and how the metastasis-associated genes are explored.
반성수,최일승,안치성,정명훈,최선욱,송관영,강동수,Ban, Sung Soo,Choe, Il Seung,Ahn, Chi Sung,Jung, Myung Hun,Choi, Sun Wook,Song, Kwan Young,Kang, Dong Soo 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.10
Objective : The goal of this study is to identify the significant radiologic abnormalities in patients complaining headache and to determine predictive factors for clinically significant radiological abnormalities. Method : The study population was 410 patients having underwent CT or MRI study among 1000 patients complaining headache in outpatient basis between 1996-1999. All of these patients answered self-administered questionaire about their headaches. We reviewed the patient's charts and the questionaires and examined the radiologic study results. Result : Of the 410 patients referred for CT or MRI study, male : female ratio was 1 : 1.97. Twenty-five patients(6.1%) revealed clinically significant organic lesions. Mean age was 46.1 in radiologic abnormal group and 48.4 in normal group. Short symptom duration(p<0.01), motor weakness(p<0.05), vomiting(p<0.05), cranial nerve palsy(p<0.05), and trauma history(p<0.05) were factors indicated higher incidence of radiologic abnormality. But, patients age, and severity of headache were not associated with clinically significant radiologic lesion. The ratio of radiologic abnormality was 0.8% in patients not having any risk factor. Conclusion : The results indicate that radiologic study should be done in headache patients having the risk factors such as short symptom duration, motor weakness, vomiting, cranial nerve palsy, trauma history. For patients without any such a risk factor, the radiologic study doesn't seem mandatory.
감염성 두개강내 동맥류의 수술 및 내과적 치험 2례 - 증 례 보 고 -
반성수,안치성,정명훈,최일승,최선욱,송관영,강동수,Ban, Sung Soo,Ahn, Chi Sung,Jung, Myung Hun,Choe, Il Seung,Choi, Sun Wook,Song, Kwan Young,Kang, Dong Soo 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1
Object : To determine whether to use surgical or medical therapy in treatment of infectious intracranial aneurysms, we reviewed two recent cases of infectious intracranial aneurysms and others known previous reports of aforementioned cases. Hence, we attempted to compare the validity and effectiveness of surgical and medical treatment. Method : Recently, we treated two cases of ruptured infectious intracranial aneurysms. In former case, the aneurysm was located distal to the middle cerebral artery in a patient with mild mitral regurgitation of the heart. In latter case, the aneurysm was multiple with varying hemorrhage. The hemorrhage was located bilaterally and a moderate mitral regurgitation and infective endocarditis were accompanied in this patient. Result : Due to the large size of the intracranial hematoma, stable medical condition, and easy resectability, we treated the former patient surgically. And, because of successive hemorrhage by multiple aneurysmal rupture, and the risk of heart failure, we treated the latter patient medically with serial follow-up angiography. Both patients are at present in good health. Conclusion : Because of the variability in associated factors, such as the patient's health, the number of lesions, location, anatomy of the aneurysms and the causative organism, each patient's care must be individualized and tailored to the patient's particular clinical situation.
시멘트 및 고성능AE감수제가 고유동콘크리트의 유동특성에 미치는 효과에 관한 실험적 연구
박선규,반성수,우영제,김규용,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1
The fluidity of high flowing concrete can be affected by numerous parameters which characterize either the cement or the admixture. The reactivity of a cement as determined by its chemical compositions (especially its C₃A content), its fineness and its content in sulfates and alkalies obviously plays a key role in rheology of high flowing concrete in fresh state. Specific properties of high range water reducing AE agent used to enhance the workability of high flowing concrete also exert important influence. The purpose of this experimental study is to investigate and analyze the effect of cement and high range water reducing AE agent in fluidity, setting, compressive strength of high flowing concrete. As a result, we found that fluidity of high flowing concrete is affected greatly by kind of cement and high range water reducing AE agent, also, there is harmonic character between high belite cement and polycarbonic acid high range water reducing AE agent.