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- 저자 : Byung Sik Mun (검색결과 61 건)
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鐵骨桂脚部의 베이스플레이트 두께 변화에 다른 支壓强度에 관한 實驗的 硏究
최문식,민병렬 단국대학교 1998 論文集 Vol.32 No.-
Steel structure, steel reinforced concrete and composite structure has been increasingly used to cover the increased structural load due to the construction of high-rise buildings. Thus when designing the steel structure, it is generally considered difficult to evaluate the appropriate bearing strength of the steel base, upon which large axial load is applied. The impact of steel base to the bearing strength may be various such as to the loaded areas, strength of concrete, shape of base, and steel reinforcing bars. Entire strength of the building is transferred to the reinforced concrete footing through the baseplate. However, in the case of utilizing the baseplate with low bending strength or thin baseplate, it will be hard to estimate the accurate bearing strength upon the concrete footing due to the problem of bending occurrence by which loaded area becomes smaller than baseplate. Therefore, in the reported research, the variation of the bearing strength was analyzed by altering the thickness of steel baseplate and the appropriate estimation method of bearing strength was suggested comparing with the results of other researches.
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LED를 이용한 복합레진의 광조사시, 중합수축의 속도와 양, 미세경도에 관한 연구
박성호,김수선,조용식,이순영,김도현,장용주,문현승,서정원,노병덕 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4
This study evaluated the effectiveness of the light emitting diode(LED) units for composite curing. To compare its effectiveness with conventional quartz tungsten halogen (QTH) light curing unit, the microhardness of 2mm composite, Z250, which had been light cured by the LEDs (Ultralume LED2, FreeLight, Developing product D1) or QTH (XL 3000) were compared on the upper and lower surface. One way ANOVA with Tukey and Paired t-test was used at 95% levels of confidence. In addition, the amount of linear polymerization shrinkage was compared between composites which were light cured by QTH or LEDs using a custom-made linimeter in 10s and 60s of light curing, and the amount of linear polymerization shrinkage was compared by one way ANOVA with Tukey. The amount of polymerization shrinkage at 10s was XL3000 > Ultralume 2, 40, 60 > FreeLight, D1 (P<0.05) The amount of polymerization shrinkage at 60s was XL3000 > Ultralume 2, 60 > Ultralume 2, 40 > FreeLight, D1 (P<0.05) The microhardness on the upper and lower surface was as follows; <본문 참조> It was concluded that the LEDs produced lower polymerization shrinkage in 10s and 60s compared with QTH unit. In addition, the microhardness of samples which had been cured with LEDs was lower on the lower surfaces than the upper surfaces whereas there was no difference in QTH cured samples.
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이용택,한승우,조영개,이현문,김태근,손인식,양병수 한국환경과학회 2000 한국환경과학회지 Vol.9 No.4
This research studied the characteristics and applicability of electrocoagulation using aluminium electrode for the color and COD removal in textile wastewater. Electrocoagulation reactor used two different electrode, Fe and Al, since in the general chemical wastewater treatment, aluminium and ferrous salts were used as coagulants. Aluminium electrode showed higher removal efficiency of color and COD than ferrous electrode did. The COD and color removal efficiency improved at the 0.192A/dm^2 current density. Thus, the electrocoagulation process with bipolar aluminium electrode showed better efficiency in the decolorization and COD removal rate of textile wastewater effluent than custom coagulants did.
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항정신병약물 사용 중인 정신분열병 환자에서 올란자판으로의 교체 방법에 관한 연구(II) : Comparison of Safety 안전성 비교
안용민,권용실,권준수,민성호,박두병,양문정,소형석,송종호,신윤식,우행원,유범희,이홍석,정한용,한창환,김용식 大韓神經精神醫學會 2002 신경정신의학 Vol.41 No.5
연구목적: 이 다기관 공동임상연구는 사용 중인 항정신병약물을 ’직접 교체 방법’또는 ’시작-감량 교체 방법’중 한 가지 방법으로 올란자핀으로 교체한 후, 안정성 측면에서 두 교체 방법 간의 비교와 교체후의 변화를 관찰하기 위한 것이다. 방법: 국내 13개 병원의 입원 및 외래에 내원한 환자들 중 ICD-10 지단기준으로 정신분열병에 해당되며, 임상적으로 항정신병약물 교체가 필요한 환자를 대상으로 하였다. 두 가지 교체 방법 중 한 가지를 무작위로 피험자에 적용하였으며, ’직접 교체 방법’에 배정된 경우에는 사용중인 항정신병약물을 일시에 중단하고 10㎎의 올란자핀을 바로 투여하였고, ’시작-감량 교체 방법’에 배정된 경우는 10㎎의 올란자핀 투여하고 2주에 걸쳐서 기존 약물을 감량하여 중단하였다. 올란자핀 사용기간은 총 6주이며, 용량은 5∼20㎎ 범위로 제한하였다. 한정성 평가를 위해서 체중, 생명징후, 자발적인 이상반응 복, 실험실 검사 그리고 Simpson-Angus Scale(SAS), Barnes akathisia rating scale(BARS), Abnormal involuntary movement scale(AIMS). Liverpool University neuroleptic side effect rating scale(LUNSERS)등을 이용하였다. 결과: 총 103명의 정신분열병 환자를 대상으로 하였다. 사용한 올란자핀의 용량, 벤조디아제핀의 병용률, 탈락률과 탈락 사유, 자발적인 이상반응 보고, 생명징후, 실험실 검사 그리고 대부분의 부작용 척도 상에서 임상적으로 의미 있는 차이를 두 교체 방법간에 발견하지 못하였다. 다만 AIMS의 감소는 ’직접 교체 방법’군에서 보다 적었고, 항콜린제의 병용률은 ’시작-감량 교체 방법’군에서 보다 많았다. 기저 상태에서 전체 피험자의 SAS와 BARS 점수는 각각 3.5점과 1.8점이었으며 70% 이상의 피험자가 고프로락틴 혈증을 보였다. 올란자핀으로 교체한 후, SAS, BARS, AIMS 점수의 유의한 감소가 있었으며 고프로락틴 혈증을 보인 피험자 분율도 약 30%이하로 감소하였다. 그러나 교체 방법과 상관없이 올란자핀 교체 후 유의한 체중 증가가 있었다. 결론: 이 연구를 통해 교체 방법에 관계없이 비교적 안전하고 용이하게 올란자핀으로 교체 할 수 있음을 알 수 있었다. 그리고 기존 항정신병약물을 올란자핀으로 교체함으로써 일부 부작용들을 줄일 수 있음을 간접적으로 관찰할 수 있었다. 하지만 이 연구는 여러 제한점과 문제점을 지니고 있기 때문에 보다 체계적인 연구를 통해 검정이 필요하리라 생각된다. Objectives: This multicenter clinical trial involving 13 hospital sites compared the safely of switching to olanzapine between ’direct switching method’ and ’start-tapering switching method’. Method: This study included both inpatients and outpatients who fulfilled the criteria for schizophrenia as defined in the ICD-10, and were in need to be appropriate for switching antipsychotics. Subjects were randomly assigned to one of the two switching methods. For ’direct switching method’group, previous antipsychotics were abruptly discontinued and 10㎎ of olanzapine was administered, and previous antipsychotics was gradually tapered for 2 weeks. Olanzapine was used for 6 weeks and the dose was adjusted within the range of 5-20㎎. The safety of switching to olanzapine was measured with vital sings including body weight, adverse events reported spontaneously, laboratory tests, and various scales such as Simpson-Angus Scale(SAS), Barnes Akathisia Rating Scale(BARS). Abnormal Involuntary Movement Scale(AIMS), and Liverpool University Neuroleptic Side Effect Rating Scale(LUNSERS). Results: 103 patients were switched to olanzapine in this study. The comparison between two switching methods did not show any significant difference in the dosage of olanzapine used, the concomitant use of benzodiazepine, the rate and reasons of drop-out, the adverse events, vital signs, laboratory tests, and most scales for measuring side-effects. However, the decrease in AIMS scores was significantly lower in ’direct switching method’ group, and the concomitant use of anticholinergics was comparatively greater in ’start-tapering switching method’ group. At baseline, SAS and BARS scores were 3.5 and 1.8 points respectively, and more than 70% of the subjects showed hyperprolactinemia. After switching to olanzapine, SAS, BARS, and AIMS scores were significantly decreased and the proportion of the patients with hyperprolactinemia was also decreased to less than 30%. However significant weight gain after the treatment of olanzapine was observed regardless of switching method. Conclusion: This study may suggest that switching to olanzapine can be done with relatively high safety regardless of switching methods and olanzapine can significantly decrease some side-effects induced by other antipsychotics.
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Mun Sik Shin(申文植),Ki Yong Ha(河基庸),Young Tae Lee(李暎泰),Du Ku Lee(李斗求),Hyun Tak Shin(申鉉卓),Byung Tae Jun(田炳泰) 한국육종학회 1991 한국육종학회지 Vol.23 No.2
This study was conducted to get necessary information to develop new resistant cultivars for bacterial blight. The disease index by natural infection of bacterial blight for fifty seven cultivars (Japonica 39, Tongil 18) was investigated in frequently flooding rice field at Haenam, Chonnam during the period 1985 to 1989. Ninety one isolates collected from natural infection field were tested their virulence to five differential rice varieties. The distribution ratio of K₁, K₂, K₃ and K₄ races was 28.6, 27.5, 38.5 and 5.5%, respectively. But K₄ race was not isolated from 1987 to 1989. On the other hand, K₁, K₂ and K₃ races showed nearly similar distribution ratio in 1989. The disease incidence of cultivars tested trended to decrease year by year. Among the cultivars possessing true resistance, the degree of natural infection of japonica group differed from that of tongil groups. This suggests that resistant genes of japonica cultivars differ from those of tongil cultivars. Yeongsanbyeo, Gehwabyeo, Seomjinbyeo and Daecheongbyeo(Japonica) ; and Baegyangbyeo, Taebaegbyeo, Samgangbyeo, Seogwangbyeo and Baegunchalbyeo(Tongil) showed resistant reaction in natural infection field.
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New Sources of Resistance to Gray Leaf Spot (Stemphylium spp.) in Capsicum Peppers
Byung-Soo Kim,Tae-Ryong Kwon,Mun-Jung Lee,Eun-Hyung Cho,Kwang-Sik Shin,Jeong-Hoon Kim,Su Kyung Jun,Ji Seon Lee,Sul-A Jung 한국원예학회 2006 Horticulture, Environment, and Biotechnology Vol.47 No.4
In tests regarding the resistance to gray leaf spot disease caused by Stemphylium solani and S. lycopersici, KC1247, KC1248, KC1250, KC125l, and KC1258 showed the same level of resistance as the known sources of resistance such as KC43 , KC47 , KC220, KC319, KC320, and KC380. In addition, KC897, KC1255, KC1256, KC937, KC1257, KC916, KC177, KC872, and KC866 were resistant to the disease, developing only a little more spots than the known sources of resistance but much less than susceptible controls.
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Mun Sik Shin(申文植),Young Man Lee(李榮萬),Byung Tae Jun(田炳泰) 한국육종학회 1991 한국육종학회지 Vol.23 No.1
The segregation mode and linkage analysis of gene for resistance to brown planthopper were examined in F₂ generation and F₃ lines derived from the crosses between resistant cultivar, Hwacheongbyeo and four susceptible genetic marker lines. Four-week-old plants were infested with second-to third-instar nymphs of BPH of biotype 1. The insects were distributed evenly with three to four individuals per plant. The reaction of plants was recorded about 28 to 35 days after infestation when the susceptible marker lines were completely killed. The resistance to brown planthopper of Hwacheongbyeo was governed by a single dominant gene and this resistant gene was independent with the marker genes, such as Ig (liguleless, Ⅱ), wh(white hull, Ⅱ), ph⁺(phenol positive reaction, Ⅱ), xa-1(resistance gene to BLB, Ⅱ), drp(dripping-wet leaf, Ⅱ), RC(Brown pericarp, Ⅳ), gh(gold hull, Ⅵ) and gl(glabrous leaf and hul, XII), respectively.
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