형상기억복합재료에 대한 온라인 모니터링 시스템 개발

이동화,박영철,이민래,이동화,이규창 한국비파괴검사학회 2003 한국비파괴검사학회지 Vol.23 No.1

형상기억복합재료를 제조하기 위하여 핫프레스 방법을 이용하여 최적의 제조조건을 도출하였으며 냉간압연에 의해 기지재와 강화재의 계면접합을 강화하여 강도를 증가시켰다. 이러한 방법에 의해 제조된 형상기억복합재료에 대하여 외부 하중에 의한 손상정도와 균열의 발생을 감지하여 균열 발생 및 진전을 억제하는 온라인 모니터링 시스템을 개발하고자 한다. 이를 위하여 음향방출 신호의 파라미터를 이용하여 손상에 따른 최적의 AE 파라미터를 도출하였으며 가열시스템을 이용하여 형상기억합금을 가열함으로써 형상기억합금의 수축에 의한 복합재료 내부에 균열진전을 억제시키는 시스템을 개발하였다. A hot press method was use for the optimal manufacturing condition for a shape memory alloy(SMA) composite. The bonding between the matrix and the reinforcement within the SMA composite by the hot press mothod was strengthened by cold rolling. In this study, the objective was to develop an on-line monitoring system for the prevention of the crack initiation and propagation by shape memory effect of SMA composite. Shape memory effect was used to prevent the SMA composite from cracking. For the system to be developed, an optimal AE parameter should be determined based on the degree of damage and crack initiation. When the SMA composite was heated by the plate heater attached at the composite, the propagating cracks appeared to be controlled by the compressive force of SMA.

식사 대용식을 사용한 단기간의 체중 조절 : 한국인 비만 성인 여성에서 식사 대용식에 대한 연구 Meal replacements trial in Korean Obese women

이복기,이규래,박미현 대한비만학회 2002 The Korean journal of obesity Vol.11 No.2

연구배경 : 최근의 비만 인구의 증가와 체중 조절에 대한 관심이 증가하면서 식사 대용식의 사용이 많아지고 있다. 그러나 이러한 제품들이 실제적인 효과 면에서 문제가 되고 있음이 많이 보고되고 있고, 무분별한 사용으로 경제적인 측면에서 많은 손실이 초래되고 있음이 현실이다. 이에 본 논문은 비만 여성에 대한 식사 대용식에 대한 연구를 함으로써 국내에서 시판되는 식사 대용식의 효능과 안전성에 대해 알아보고자 하였다. 방법 : 대중 매체 및 인터넷 사이트를 통하여 자원한 여성들 중 체질량 지수 25kg/㎡ 이상의 25 ~ 35세의 여성 54명을 선별하여 6주간의 연구가 진행되었다. 참여한 54명을 2군으로 분류하여 식사 대용식 사용군 (A군)은 식사 대용식을 아침과 저녁 식사에 사용하였고 대조군 (B군)의 경우는 식사와 운동에 대한 교육만을 시행하였다. 모든 연구 대상자에 대해서 초기 방문과 3주 째, 그리고 6주 째에 신체 계측 치들과 체 성분, 그리고 대사적인 변수들을 측정하고 6주간의 식사일기를 분석하였다. 결과 : 54명의 연구 대상자 중 42명이 6주간의 연구 기간을 마쳤고, 그 중 식사 일기의 분석이 가능한 35명을 최종 대상자로 하였다. 6주의 연구 동안 A군은 1042.61±179.73kcal/day를 섭취하였고 B군은 1313.49±308.07 kcal/day를 섭취하여 두 군간의 통계적으로 의미있는 차이가 있었다. 신체 계측치와 체 성분에 미치는 영향은 A군에서 체중 (-3.84±1.97 kg), 체지방률 (-1.42±2.20%), 허리 둘레, 둔부 둘레에서 의미 있는 감소를 보였고, B군에서는 체중 (-3.39±2.25 kg), 허리 둘레, 둔부 둘레에서 의미 있는 감소를 보였다. A군에서는 수축기, 이완기 혈압, LDL 콜레스테롤에서 의미있는 감소를 보였고, B군에서는 수축기 혈압, 총 콜레스테롤 , LDL 콜레스테롤에서 의미 있는 감소를 보였다. 양군간의 체중과 체지방률의 변화량의 비교에서는 유의한 차이를 보이지 못했다. 결론 : 이 결과는 한국의 성인 여성에서 6주 동안 하루 2번의 식사 대용식을 사용할 때, 섭취량을 줄이고 체중과 체지방률을 줄이는 데 효과적인 방법임을 시사한다. 그렇지만 대조군과의 비교를 위해서는 좀 더 장기간의 연구가 필요하다. Background : Among the obese and those interested in weight reduction, the use of meal replacements recently has gained popularity. The efficacy and safety of meal replacements, however, has been questioned. In addition, the imprudent use of meal replacements lead to significant economic costs. Therefore, this study will investigate the efficacy and safety of meal replacements by examining obese women who take meal replacements. Methods: This experiment was conducted with subjects who volunteered through the internet and the mass media. The duration of the experiment was six weeks. The subjects consisted of 54 obese women (BMI>25) whose ages ranged from 25 to 35.54 subjects were divided into two groups : Group A, the experimental group, took meal replacements for breakfast and dinner. Group B, the control group, received instruction concerning exercises and diets. anthropometric measurement, body composition and metabolic variations were evaluated the first day, the third week and the sixth week; in addition, the subjects' diet diaries were analyzed. Results : 42 out of 54 finished the six weeks experiments. 35 out of the 42 completed diet diaries. The results are based on the 35 subjects' diet diaries. Group A took 1042.61±179.73 kcal/day, and group B took 1313.49±308.07 kcal/day for six weeks. This is a statistically significant difference between two groups. Group A showed a significant reduction in weight (-3.84±1.97 kg), the percentage of body fat (-1.42±2.20%), and in waist and hip circumference. Group B also showed a significant reduction in weight (-3.39±2.25 kg) and in waist and the hip circumference. In group A, there was a significant reduction in the LDL cholesterol and in systolic and diastolic blood pressure. In group B, there was a significant reduction in total cholesterol, LDL cholesterol and in systolic blood pressure. There was no significant difference in changes of weight and body fat between the two groups. Conclusion : From these results, Korean women who took meal replacements twice a day for six weeks reduced their oral intake, weight and body fat. However, long-term studies are needed to clarify the comparison between two groups.

工業系 中等敎員의 資格硏修成果에 관한 調査硏究

李來然,盧泰天,金應圭 충남대학교 공업교육연구소 1984 論文集 Vol.7 No.2

The aims of this study is to survey the achievements of the in-service training which was executed by the In-Service Teacher Training Institute of Chungnam National University during the summer vacation in 1984. After analyzing the responses to the questionnaire which were collectted from 435 technical teachers attending the in-service training, we reached following conclusions as suggestions. 1) It is desirable to establish a committee to decide the levels and contents of the major subjects under the in-service teacher training institute. 2) Lessening the numbers of major subjects and extending the hours of each subjects will make effective results on in-service technical teacher training. 3) It will be better to give a chance to teachers to take option in the major study field. 4) The Ministry of Education should make a plan to give a course on computer programming to technical teachers regularly.

Wakeman 式 樹形에서의 補助 鐵線이 S.(Seibel) 9110 葡萄나무 新梢의 自然誘引, 切損, 生長 및 果實의 品質에 미치는 影響

李英喆,崔東龍,金圭來,金善圭,李鎬珍 충북대학교 농업과학기술연구소 1990 農業科學硏究 Vol.8 No.1

Influence of supplemental wiring to standard Wakeman's training system on self-training, breakage, and growth of shoots, and fruit quality of Seibel 9110(S.9110, Verdelet) grapevines was studied. 1.Supplemental wiring increased the rate of self-training of shoots, and 2 to 4 wires were more effective than single wire. 2.Shoot breakage was decreased by the supplemental wiring. 3.Shoot growth tended to increase by the supplememntal wiring, and increase in the number of internodes was recognized only with 1W-15 and 2W-15 treatments. 4.Shoot diameter increased by the supplemental wiring. Pruning weight also was increased with supplemental wiring, especially by 2W-15 and 4W-15-30 treatments. 5.Cluster weight was greatly affected by supplemental wiring, and the effect was enhanced by 2W-15 and 4W-15-30 treatments. Brix degrees(°Bx) tended to increase by supplemental wiring but the effect was noted only by 2W-15 treatment.

진정한 통일을 위한 제언 : 결혼이 곧 행복인가

이광래,임규정 군산대학교 현대이념연구소 1996 現代理念硏究 Vol.11 No.-

정신분열환자의 발병연령과 항정신병약물 투여전후의 혈장 Homovanillic Acid, 3-Methoxy-4-Hydroxyphenylglycol농도의 연관성

하형래,이인상,한규희 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.5

Objectives : The authors investigated the possibility of homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG) concentrations in plasma to be biological markers before and after the pharmacological treatment of schizophrenia. Methods : Twenty-six patients with schizophrenia were enrolled after two week washout of neuroleptics. Baseline sampling was done after washout. Consequent samplings were done at two and four week time-points after neuroleptic treatment. The concentrations of HVA and MHPG were analysed with clinical variables, such as age, age of onset, duration of illness, period of hospitalization, and changes of clinical state. The HVA and MHPG were assayed using high pressure liquid Chromatography-electrochemical detection method. Results : A significant association was observed between the age of onset and plasma HVA concentration in washout state of antipsychotics. The earlier onset group had lower plasma HVA concentration than the late onset group. A significant association was observed between the age of onset and plasma MHPG concentration in washout state of antipsychotics. The earlier onset group had lower plasma MHPG concentration than the late onset group. Conclusions : The present findings suggest that the activities of dopamine and norepinephrine are different with respect to age of onset in the neuroleptic-naive schizophrenia. Plasma HVA and MHPG concentration can be biological markers for the subgrouping of schizophrenia.

野山을 利用한 葡萄園 造成 및 栽培에 關한 硏究

金圭來,鄭三澤,李容夏,鄭基澤 경북대학교 교육대학원 1976 논문집 Vol.6-7 No.-

The authors studied on the problems concerning to the establishment of vineyard at 25% slopped land with 50㎝ in soil depth. We investigated on the effects of manure, mulching, physiological disorder and personal expenditures for establishment of the vineyard. The results obtained can be summarized as follows; About thirty person per 10a were required for establishment of planting step. Growth of the vine was not different 50-100㎝ of soil depth from over 100㎝ of soil depth. About 30% of selected vine trees showed boron deficiency on the young leaves and flower cluster during early June and that 70% of the vine trees showed blackish berry caused by boron deficiency during early July. The vine mulched with straw, depth of 7㎝ and 15㎝, showed significantly larger shoot growth than that of control. 15kgr. of manure application per tree showed significant difference in growth than 5kgr.of manure, 5kgr. of hen maunre and control polt.

거대요관과 거대방광이 동반된 선천성 신성요붕증 1예

이은정,이규백,서정열,김향,박흥재,김영학,권칠훈,이영래 대한신장학회 2001 대한신장학회잡지 Vol.20 No.4

만성 위염전 2 례

박찬규,이동욱,남성진,김추성,조성래,구본천,박영재,허규찬 啓明大學校 醫科大學 1997 계명의대학술지 Vol.16 No.3

위염전은 위의 비정상적인 회전으로 생기는데 급성증에서는 진단이 늦어질 경우 치명적일 수도 있으나, 만성증의 경우는 비특이적 위장관 중상을 나타내며, 치료되지 않을 경우 수년 동안 증상이 지속될 수도 있다. 최근 저자들은 소화불량, 식후 상복부 동통을 주소로 내원한 환자에서 만성위염전 2 례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Gastric volvulus is an abnormal rotation of the stomach. Gastric volvulus may present as an emergency or as a chronic condition. Acute volvulus si potentially lethal if unrecognized, while a chronic volvulus may cause symptoms for years if not treated. Gastric volvulus may be more common than previously estimated. Approximately 700 cases have thus far been documented. In patients with vague upper abdominal pain, bloating, vomiting, early satiety and weight loss, chronic gastric volvulus are reported and the related literature reviewed. The clinical presentation, diagnosis, and treatment are treatment are discussed. Features of acute and chronic volvulus are compared.

자궁경부질도말에서 Atypical Glandular Cells of Undetermined Significance (AGUS)로 나타난 자궁경부의 표재성 자궁내막증 - 2예 보고 -

최혜정,이승구,김규래 대한병리학회 2001 Journal of Pathology and Translational Medicine Vol.35 No.3