動壓密공법을 이용한 都市 廢棄物 埋立地盤의 物理的 改良을 위한 方案

宋錫哲,李大澈,金英默 大田産業大學校 1994 한밭대학교 논문집 Vol.11 No.0201

In this paper, a application mehtod for physical improvement of municipal waste landfill is presented. It is called dynamic consolidation. To this end, a case of improvement project for construction site by dynamic consolidation to the waste landfill which was formed open dumping is studied. Field tests of project area is conducted, and the results of field tests is analised. From the results of the field measurements, the municipal waste landfill was compressed considerbily, and the geotechnical properties of the waste ground was improved. The pounder was penetrated below the ground level about 1.2~2.5m depth and the volume of the crater was 7.893~ 18.255m_3 when 1st step impect was finished. The coefficient of improvement depth α is 0.34~0.4. Thus, it was founded that the dynamic consolidation was sucessful for physical improvement of municipal waste landfill.

열형광선량계에 의한 선량평가 알고리즘 개발

송명재,김희근,하정우,이태영,윤석철 대한방사선 방어학회 1992 방사선방어학회지 Vol.17 No.2

본 연구의 목적은 ANSI N13. 11-1983의 시험기준에서 제시한 개인선량계의 선량평가 시험범주를 모두 만족시킬 수 있는 선량평가 알고리즘을 개발하는데 있다. 알고리즘 개발 대상 개인선량계로는 Teledyne Isotopes사의 PB-3 열형광선량계로 하였다. 개발된 알고리즘에 대한 미국 Atlan-Tech사와의 2차례의 검증결과, 본 알고리즘은 ANSI N-13. 11-1983의 선량평가 범주를 모두 만족시키는 것으로 나타났다. The purpose of this study is to develop an algorithm of TLD dose evaluation to meet all requirements stated in ANSI N13. 11-1983. It made the PB-3 TLD of Teledyne Isotopes an object of the development. Personal dosimetry performance testings of the development algorithm have been performed twice through the Atlan-Tech, INC. in accordance with the criteria of testing described in ANSI N13. 11-1983. As a result, it is assured that the developed algorithm has complied with all requirements stated in ANSI N13-1983.

배송업무 아웃소싱 모델

송경주,임석철 한국경영과학회 2000 한국경영과학회 학술대회논문집 Vol.- No.1

최근 기업들은 자사의 핵심역량을 극대화하기 위하여 배송업무를 포함한 물류업무를 전문적인 제3자에게 위탁하는 아웃소싱이 확대되는 추세이다. 특히 제조업체는 제품 배송업무의 아웃소싱을 다양한 형태로 추진할 수 있기 때문에 아웃소싱 계획단계에서 최적의 업무프로세스 모델링이 매우 중요하며, 자사에 맞는 아웃소싱 모델을 선정하도록 의사결정을 지원할 체계적인 접근방법이 필요하다. 본 연구는 배송업무 아웃소싱 현황을 조망하고, 배송업무 아웃소싱을 위한 고려사항과 업무절차를 배송전문업체 선정단계와 운영단계, 그리고 성과평가단계로 구분하여 제시한다.

지속성 외래 복막투석 환자에서 염증 지표와 고해상도 B 모드 경동맥 초음파 소견의 연관성에 관한 연구

송현용,송영수,안철우,강신욱,최규헌,하성규,이현철,이호영,한대석 대한신장학회 2002 Kidney Research and Clinical Practice Vol.21 No.2

배 경 : 저알부민혈증 및 C-반응 단백(C-reactive protein, CRP)이 증가된 지속성 외래 복막투석 환자의 사망률이 높은 정확한 이유는 밝혀져 않다. 혈액투석 환자에서처럼 복막투석 환자에서 저알부민혈증 및 염증반응이 심혈관계 질환 위험인자 인지 알아보고자 하였다. 방 법: 비당뇨병성 말기 신부전, 지속성 외래 복막투석 환자 93명의 심혈관계 질환 위험인자들과 복막 투과 특성 및 알부민, CRP 등의 염증지표에 따라 고해상도 초음파를 이용한 경동맥내막-중간막 두께, 내막-중간막 면적, 플라크의 유무 등을 단면적으로 비교하였다. 결 과: 복막 투과 특성은 고투과막군 14명, 중간 고투과막군 38명, 중간 저투과막군 31명, 저투과막군 10명으로 각 군간의 경동맥 내막-중간막 두께, 플라크 유무 및 내막-중간막 면적의 차이는 없었다. 기존 관상동맥 질환 환자는 8예(8.6%)로 내막-중간막 두께는 관상동맥 질환이 없는 환자보다 증가되었고(0.79±0.21 vs 0.60±0.11 mm, p<0.05) 플라크 형성은 더 많이 보이나 통계적 유의성은 없었다(75.0 vs 63.5%, p>0.05). 혈청 알부민치와 경동맥 내막-중간막 면적은 역상관관계를 보였다(r=-0.27, p<0.05). 저알부민혈증 환자(혈청 알부민 <3.5 g/dL)는 정상 알부민혈증 환자보다 내막-중간막 두께가 증가되었고(0.67±0.15 vs 0.61±0.12 mm, p<0.05), 플라크도 유의하게 많았다(68.0 vs 55.8%, p<0.05). 혈청 CRP치와 경동맥 내막-중간막 면적은 양의 상관관계가 있었으며(r=0.21, p<0.05) CRP가 높은 환자(≥0.8 mg/dL, n=18)에서플라크가 많이 관찰되었으나(65.8 vs 50.0%, p<0.05) 경동맥 내막-중간막 두께 및 내막-중간막면적은 양군간에 차이가 없었다. 다변량 회귀 분석상 경동맥 내막-중간막 두께에 영향을 미치는 인자는 고령, 높은 CRP, 기존 심혈관계질환, 낮은 혈청 알부민 순이였다. 결 론 : 복막투석 환자에서 고해상도 초음파를 이용한 경동맥 내막-중간막 두께 측정은 심혈관계 질환 유무 예측의 비침습적 검사가 될 수 있고 저알부민혈증 및 높은 CRP과 같은 만성염증 지속상태가 복막투석 환자에서 죽상 동맥 경화증의 발생을 증가시킨다고 가정할 수 있다. Background : Continuous ambulatory peritoneal dialysis(CAPD) patients with low albumin(LA) and signs of inflammation reflected by increased C-reactive protein(CRP) level have an increased mortality, but the mechanism of this phenomenon is not clear yet. Methods : To answer whether LA and inflammation also enhance cardiovascular risk in CAPD patients, we performed cross sectional study measuring carotid artery intima-media thickness(IMT), calculated intima-media area(cIM area) and the presence of plaque by high-resolution B-mode ultrasonography in 93 non-diabetic CAPD patients. Results : Patients with coronary artery disease (CAD, n=8) had significantly increased IMT(0.79± 0.21 mm vs. 0.60±0.11 mm, p<0.05) and higher prevalence of carotid plaques(75.0% vs. 63.5%) compared to the non-CAD patients. Significant inverse correlation was observed between serum albumin (SA) level and cIM area(r=-0.27, p<0.05). Those patients with LA(SA <3.5 g/dL) had significantly increased IMT compared to non-LA patients(0.67±0.15 mm vs 0.61±0.12 mm, p<0.05). Prevalence of carotid plaques was also significantly higher in LA patients (68.0% vs. 55.8%, p<0.05). CRP level revealed a significant positive correlation with cIM area(r=0.21, p< 0.05). Patients with high CRP(≥0.8 mg/dL, n=18) had higher prevalence of carotid plaques (65.8% vs. 50.0%, p<0.05) compared to those patients with CRP <0.8 mg/dL, but IMT and cIMT area were not different. By multivariate logistic regression analysis, old age, high CRP, history of CAD and low SA were the independent risk factors affecting IMT. Conclusion : Our study strongly suggests that low albumin and chronic inflammatory state of CAPD patients could be associated with increasing atherosclerotic cardiovascular disease. (Korean J Nephrol 2002;21(2):285-294)

體級別 運動選手들의 體格 및 體力의 實態分析硏究

宋錫英,朴喆斌,申範澈 韓國體育大學校附屬 體育科學硏究所 1983 韓國體育大學校附屬 體育科學硏究所論文集 Vol.2 No.1

This study was undertaken to discuss the charecteristics in physique index and physical fitness of 180 wrestlers, boxers, weightlifters, judoists and Taekwondo athletes at Korean National college of physical Education. The implications of this study are as follows: 1. Physique index The lightweight athletes in wrestling, boxing, weightliftling and Taekwondo were inferior in length, size and girth of the physique. 2. physical fitness 1) The graeco- roman wrestlers with the weight of 52 kgs were inferior in physical fitness of sit-ups, vertical jump, 50m-dash, vital capacity, Harvard step test, and superior in side step test and superior in side step test and forward truck flexion. 2) The graeco-Roman wrestlers with the weight of 52kgs to 62kgs were inferior in upper arm flexion circumference, forward truck flexion, backward truck flexion, while they were superior in Harvard step test. 3) The boxers with the weight of 48kgs were inferior in performance skills by the physical fitness. but they were a little superior in upper arm flexion circumference. 4) The boxers with the weight of 51kgs to 57kgs were inferior in muscular strength and flexibility. 5) The weightlifters with the weight of 56kgs to 75kgs were requested to improve the muscularstrength through skill performance. 6) The boxers were superior in power, while they were inferior in whole body endurance. 7) The judoists with the weight of 95kgs were requested to have the training of muscule endurance and power. 8) The Taekwondo athletes with the weight of 48kgs to 60kgs were superior in muscular endurance, whole body endurance and whole body reaction time, while they were inferior in muscular strength.

大田市 下水道計劃에 關한 硏究

宋錫哲,李鍾珏 大田工業高等專門學校 1968 論文集 Vol.3 No.-

This thesis is, as the first step in establishing the sewerage plan, the report of studying the problems and devices on the sewerage planning in future by means of investigating and analysing these streams, through which the filthy water flows. In Taejon stream, flowing through the center of the city, and Dae Dong stream which flows front the east of it, the centaminating of them is so extreme that I am going to present the following devices in a respect that we should consider a counter-measure of purifying these streams in order to prevent it. The problems and devices of a sewerage planning are like these: 1. To make the draining smooth by means of completing the sewerage systems in the whole city. 2. To eliminate the filthy water by establishing the intercepting sewer on stream street. 3. To set up a treatment division of industrial waste water. 4. To make designers replace the water carrage toilets with flush ones in constructing of them, when they received permission for building houses. 5. To protect the region of the downstream from the damage of filthy water, by establishing sewerage treatment plants. By carrying out the above mentioned five projects urgently, I think that we are able to obtain the cheerfulness and the sound sanitation of the city.

液體 Chromatograph와 放射酵素法에 依한 Catecholamine微量 定量

宋玉憲,申石澈 충남대학교 의과대학 지역사회의학연구소 1983 충남의대잡지 Vol.10 No.2

A direct rapid radioenzymatic assay for measuring simultaneouly picogram quantities of norepinephrine, epinephrine and dopamine by a combination of high pressure liquid chromatography has been developed, and the relationship of changes in cerebrospinal fluid norepinephrine concentrations during haloperidol treatment to changes in psychosis ratings of 12 schizophrenic patients has been investigated. Twenty microliters of cerebrospinal fluid are incubated with catechol-O-methyl-transferase and S-adenosyl-L-[methyl-^3H] methionine to convert the three catechol-amines to their O-methylated analogues. These derivatives are extracted with diethylether containing tetraphenylborate at pH 8.2 followed by re-extraction with 0.1N HCl and then isolated by high pressure liquid chromatography using μ-Bondapak C_18 column and 0.17M acetic acid-6% methanol-0.02M Na_2SO_4 as solvent. Manual collection of each fraction is started two seconds after in appeared mark. The high pressure liquid chromatography fractions of norepinephine (NE) and epinephrine (E) derivatives are oxidized to vanillin followed by extracting the vanillin with toluene, and dopamine (DA) derivative fraction is extracted by toluene/isoamylalcohol and then re-extracted by 0.1N HCl. Owing to a higher recovery (NE, 75.6±0.9%; E, 76±0.8%; DA, 70±0.4% and incorporation rate of radioactivity (NE, 163±11.4; E, 125±10.5; DA, 112±3.9 cpm), together with quick seperation of the methylated derivatives within 8 min by high pressure liquid chromatography, the method yielded extremely high sensitivity (NE, 0.4 pg; E, 0.3 pg; DA, 1 pg), accuracy, reproducibility and specificity of the differential assay, and thus enabled us to complete the differential analysis of 15 samples (30 tubes) in a day. In case of norepinephrine only, more than 35 samples can be assayed in a day. It was shown by this method that haloperidol induced decreases in norepinephrine and that the decreases correlated significantly with psychosis ratings, suggesting that cerebrospinal fluid norepinephrine can be used for evaluation of neuroleptics treatment of schizophrenia.

소위 정상 한국인에 있어서 General Health Questionnaire의 인자분석에 관한 연구

신석철,송광선 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.2

This investigation was attempted to observe the differences of the structure of the neurotic symptoms in normal persons. The number of the persons to be participated for this study was two hundred(105 males and 95 females). and was classified into four age-groups: 20 to 34, 35 to 44, 45 to 64, and over 65 years. The data of each group got from the method of the general health questionnaire (GHQ), and the scores were performed with the principal component factor analysis and Varimax-rotated factors were interpreted with the Kaiser normalization. The results were obtained the priority order of each factor in the neurotic symptoms as follows: 1. Seven factors in the age-group of 20 to 31 were hopelessness, headache, hypochondriasis, indecision, insomnia, helplessness, and inefficiency. 2. Four factors in the age-group of 35 to 41 were hopelessness, insomnia, inefficiency, and irritability. 3. Six factors in the age-group of 45 to 64 ware inefficiency, hopelessness, hypochondriasis, irritability, headache, and insomnia. 4. Four factors in the age-group of over 65 were hopelessness, inefficiency, hypochondriasis, and irritability. From the above results, the popular and dominant factors in all age-groups were hopelessness and inefficiency, the first factor in all-groups was hopelessness except the group of 45 to 64 and the first factor in the age-group of 45 to 64 inefficiency.

선형모드에서 작동하는 Microchannel Plate 증폭특성의 실험분석

박철희,송현석 崇實大學校 生産技術硏究所 2002 論文集 Vol.32 No.-

In order to understand the repetitive multiplication process in a continuous dynode operated in linear mode, we have measured the pulse height distribution of a Microchannel Plate operating in linear mode in response to a single incident electron. Contrary to the current understanding, we observed that the pulse height distribution not only has a long negative-exponential tail but a peak clearly separated from background nosie even when only one input electron. We set up a Monte Carlo simulation of the repetitive multiplication precess in a microchannel. The simulation parameters were adjusted to best fit the experimental results. The results of the simulation were compared with the experimental data. We observed that the pulse height distribution of a Microchannel Plate with an electron as an input particle differ from that with a ultraviolet photon due to the fact that an electron can create more than one secondary electron in its first collision.

콩의 개화기 전후 공급과 수용부위의 생장반응과 수량에 대한 질소의 효과

박재홍,송범헌,이철원,손석용,김홍식,박상일 忠北大學校 農業科學硏究所 2002 農業科學硏究 Vol.19 No.-

This study was conducted to examine the nitrogen effects on the growth responses, the nodulation, and the distribution of dry weight of plant tissues at major growth stages before and after the flowering stage, and to evaluate the yield components and yields with different nitrogen levels. Hwangkeum cultivar(Glycine max L mereill) was cultivated under five different nitrogen levels, 0, 2, 4, 6, 8, N Kg/10a. Stem length and branching number, which were investigated with different N levels at major growth stages, were rapidly increased for 14days for before and after the flowering stage compared to the other growth stages. They were clearly higher with treatment of 2 and 4 N kg/10a than those of other N treatments. Pod number was slightly increased from the flowering to beginning maturity. It was the highest in the treatment of 2 N Kg/10a. Comparing grain number per pod with different N levels, two grains per pod was much higher in all N treatments except for the treatment of 6 N Kg/10a. Dry weight of shoot(including leaf, stem, and pod) was rapidly increased from the flowering stage to the full seed stage and then gradually increased after the full seed stage, whereas the dry weight of root(including the nodule and root) was rapidly increased until to full pod stage and then linearly decreased from the full pod stage until the beginning maturity stage. Comparing dry weight with different N levels, the dry weight of shoot was the highest in the treatment of 4 N Kg/10a, while it of root was the highest in the treatment of 2N Kg/10a. The dry weight of nodule was the highest, 13.1 Kg/10a, at full pod stage. Comparing the dry weight of nodule with different N levels, it was increased to the application amount of 4 N Kg/10a and then clearly decreased with more application amount of N than 4 Kg/10a. The yield components which were mostly affected to the yield were pod number per plant and grain number per plant. They were 57.5 and 106.1, respectively, with treatment of 4 N Kg/10a, which showed the highest yield, about 266 Kg/10a. Comparing yield index with different N levels to the control, the yields with treatment of 2 and 4 Kg/10a were increased to 21% and 34%, respectively.