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원발성폐암 환자에 있어서 종양세포의 DNA 배수성과 생존기간과의 관계
김안명(AN Myung Kim),김동웅(Dong Woung Kim),이건화(Keon Hwa Lee),장근(Keun Chang),정은택(Eun Taik Jeong),정헌택(Hun Taik Jeong) 대한내과학회 1991 대한내과학회지 Vol.41 No.4
Investigations regarding the prognostic value of DNA ploidy have been greatly facilitated by the application of flow cytometry using tumor cells isolated from paraffin-embedded tissue. To evaluate the prognostic significance, a DNA ploidy of lung cancer cell was determined by flow cytometry in 28nonsmall cell carcinoma (NSLC) patients who died without any specific treatment (20lung tissue and 8metasratic lymph node (L. N,) tissue) and in 13small-cell carcinoma (SCLC) patients who died having had anticancer chemotherapy more than 3times. 1) Aneuploidy was present in 10out of 20with lung tissue from NSLC patients (6/14 squamous carcinoma, 4/6 adenocarcinoma), in 6out of 8with metastatic L.N. tissue from NSLC patients and in 8out of 13with lung tissue from SCLC patients. 2) The survival times of each group were as follows: 3) On multivariate analysis including histology, TNM stage and performance status, DNA ploidy was the significant and independent prognostic factor in the NSLC patient group.
기술사례 : 건설 소음,진동의 사전 영향성 분석에 관한 연구
안명석 ( Myung Seok Ahn ),김화일 ( Hwa Il Kim ),박주한 ( Ju Han Park ) 대한화약발파공학회 2014 화약발파 Vol.32 No.2
Although the construction noise and vibration are transient and intermittent, their impact on the surrounding environment is huge. Since the construction equipment noise and vibration is usually transmitted because of the long distance, the sound insulation and the proper design of anti-vibration measures are very difficult. The regulation requires that the noise and vibration caused by the construction equipments should be measured within 30m from the source, whereas the blasting noise and vibration should be measured at least 60m and 160m away from the source, respectively. Instead of the 2D modelling mainly conducted so far, the 3D analysis of noise and vibration with the consideration of the height and size of the building, mountains and hills in the vicinity of the source is necessary.
안명석,류창하,김수석,Ahn, Myung-Seog,Ryu, Chang-Ha,Kim, Su-Seog 한국터널지하공간학회 2001 터널기술 Vol.3 No.1
발파한 후 파쇄된 암석의 파쇄도는 발파효율을 나타내는 척도의 하나로서 발파방법을 평가하는 주요 인자이다. 파쇄도는 적재작업과 재활용을 위한 분쇄작업에 큰 영향을 미친다. 그러나 현장규모로 쌓여 있는 발파암 더미로부터 파쇄도를 조사한다는 것은 용이한 작업이 아니다. 본 논문에서는 현장 사례연구로서 터널발파에서 가장 중요한 요소인 심빼기방법 중 경사공을 이용한 V형 심빼기와 수평공 무장약공을 이용한 burn 심빼기 발파방법 중 파쇄도 측면에서 더 효율적인 방법을 선택하기 위하여 발파후 파쇄된 암을 사진촬영하여 이미지 분석을 실시하고 몇가지 파쇄입도 예측식을 이용한 분석 결과와 비교하였다. The investigation of the fragmentation of blasted rocks is particularly important because it is a measure of the blast efficiency. The degree of fragmentation has a major effect on the efficiency of the loading and crushing operations. Getting such an information on the large pile of blasted rock is not an easy operation. This paper presents the results of case study to evaluate the performance of two types of tunnel blasting: V-cut and burn cut. The digital images of muckpiles were analyzed to produce size distribution and it was compared with those of predictive equations.