케이블 트러스 구조체의 비선형 해석

정동조,김상식,김근덕 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.2

Cable structure shows geometrically nonlinear behaviors even in the service loading conditions and the determination of its initial geometry must be preceded for the theoretical analysis. In this research the equation related to the determination of the initial geometry has been derived from the equilibrium conditions at nodes and the nonlinear behavior of the cable truss structure has been analyzed by solving nonlinear simultaneous equations through the tangent stiffness approach. To check the applicability of the proposed method two models of cable trusses have been analyzed and compared with the tension coefficient approach and the continuum approach. The results from the examples have shown good agreements with the maximum differences being 1.45% for the nodal displacements and 0.34% for the additional tensions in cables.

一部 農村住民의 傷病樣相에 關한 硏究

鄭海鍵,李性寬 慶北大學校 醫科大學 1981 慶北醫大誌 Vol.22 No.1

1980年 3月부터 1981年 2月까지 滿 1年間 慶北 軍戚郡의 3個部落 143個家口 男女 654名을 對象으로 傷病狀況의 前向性 調査成績을 要約하면 다음과 같다. 年間 傷病率은 男子 190%, 女子 240%로 女子에서 높았으며 年間 平均 罹病回數는 2.2回程度였고, 年齡別로는 4歲以下群에서 94.3%로 제일 높고 15~19歲群에서 제일 낮았다. 年間 急性疾患의 發生率은 78.9%이며, 件當 罹患率은 男子가 173.6% 女子가 212.8%로 女子에서 高率이었다(p<0.05). 敎育程度別 發生頻度는 未就學 兒童群이 87.3%로 제일 높고 다음이 無學群 83.6%로 次位이며 高卒群 66.7%로 제일 낮아, 대체로 學歷이 낮을수록 傷病發生頻度가 높은 경향이었다. 疾病別分布는 呼吸器系疾患이 71.3%로 제일 높고 다음이 神經系 및 消化器系疾患의 順이었다. 診斷名別로는 감기, 氣管支炎, 설사, 食中毒, 皮膚炎 및 外傷이었다. 慢性疾患의 有病率은 전체 15%로 女子가 16.9%로 男子 12.9%에 비해 높았고, 年齡이 增加할수록 有病率이 높은 것으로 나타났다. 敎育程度別로는 無學群이 제일 높았고, 高率群이 제일 낮아 敎育水準이 낮을수록 그 頻度가 높게 나타났다. 疾病別로는 神經系, 消化器系, 呼吸器系 및 循環器系疾患의 順으로 나타났다. 診斷名別로는 神經痛, 慢性胃腸炎, 胃潰瘍, 腦卒中, 瑞息 및 肺結核의 順으로 나타났다. 生活程度別 疾病 罹患率의 觀察에서 生活水準이 낮을수록 罹患率이 약간 높게 나타났으나 有意義한 差異는 없었다. 地域別 罹患率 調査에서 山嶽地域이 平野 및 中間地域에 比해 그 率이 높았다. 呼吸器系疾患의 경우 山嶽地域이 他地域에 比하여 현저히 높은 것을 제외하고, 傷病分類別 分布에 있어 크게 두드러진 樣相을 나타내지 않았다. 季節別 疾病 發生率 調査에서 春季가 54.1%로 제일 높고 夏季가 32.6%로 제일 낮았다. 呼吸器系疾患은 冬季에 제일 많이 發生했고 消化器系疾患은 春季에 가장 많았다. 疾病發生은 全國的인 流行에 따라 樣相에 影響을 미칠수 있으므로 정확한 疾病樣相을 把握하려면 長期間에 걸친 코호트 觀察이 要望되는 바이다. The present study was conducted to investigate the status of sickness through a prospective study for a year from March 1980 to February 1981. The subjects were 654 of 143 households of three villages, each one of mountainous, plain and intermediate area which were selected by cluster sampling in Gunee Gun, Kyungpook province. The results obtained are as follows : Annual spell morbidity rate was 22O percent 190 percent in male and 240 percent in female. The frequency of events per capita during a year among whole population was 1.9 in male and 2.4 in female. Age specific morbidity rate showed highest as 93.4 percrnt among 0-4 year group and lowest as 62.2 percent among 15-19 year group. Overall morbidity of acute diseases was 73.9 percent and spell morbidity rate was significantly higher in female (212.8%) than that in male (173.6%) (p<0.05). The morbidity rate was highest in pre-school age group (87.3%), followed in no schooling group (83.6%) and was lowest in high school group (66.7%). In general, the morbidity rate increased with decreasing educational level. The diseases of respiratory system were found the highest rate with 71.3 percent, and the diseases of the nervous system and sensory organs, and the diseases of the digestive system were followed. By kind of disease, common cold was highest and bronchitis, diarrhea, food poisoning, dermatitis and injuries were followed. The morbidity rate of chronic diseases was 15 percent and the rate was higher in female(19.9%) than that in male (12.9%). In general, the morbidity rate increased with aging and decreasing educational level. The diseases of the nervous system showed highest and the digestive system, the respiratory system, and the circulatory system were followed. By kind of disease, neuralgia showed highest, and chronic gastroenteritis, peptic ulcer, apoplexy and bronchial asthma were followed in order. There was no significant difference between morbidity rate and living level. The spell morbidity rate was highest at 283.1 percent in mountainous area. The next was 172 percent in plain area. The morbidity rate of the respiratory diseases revealed much higher in mountainous area compared to others. In spring the morbidity rate showed the highest rate with 54.1 percent among both male and female population, and in summer, lowest. The diseases of the respiratory system and the diseases of the digestive system were frequently prevailed in winter and in spring, respectively.

Genie und Sehnsucht, Zum Motiv des Stromes in Gedichten Goethes, Stolbergs und Ho¨lderlines

정상건 충남대학교 인문과학연구소 1981 인문학연구 Vol.8 No.1

“天才와와 憧憬. Goethe, Stolberg 그리고 Ho¨lderlin의 詩에서 나타난 江의 모티브” “Strommetapher”에 對한 獨逸古典主義의 독특한 嗜好는 學術硏究에 여러번 觀察된 바 있다. 本稿는 “Strom” 主題로 하여 Stolberg, Goethe 그리고 Ho¨lderlin 만을 局限시켜 그들 詩에서 나타난 根本思想을 比較論하였다. 神的인 江물은 “Metapher”로서 多樣한 自然현상, 卽 샘, 분류, 강 等으로 自然의 영역 外에도 정신적 영역에까지 나타나 단순한 自然發生 過程의 서술을 넘어선대 그 重要性을 지니고 있다. 바다는 그 自體內에 영원히 존속하고 無限한 神的 存在를 상징하지만 江은 地上에 出現, 開拓者로서의 독창력을 발휘하나 결국 바다로 흘려내려 그에 예속됨으로서 그 限界性을 나타낸다. Stolberg는 江을 自身의 自由理念의 수호에 비유하고, Goethe는 江을 人間윤회의 상징으로 表現하고, Ho¨lderlin는 生의 源泉인 永遠한 바다를 동경하는 江의 多樣한 모습에 그 意義를 부여하고 있는 것이 相互作品들間의 특징이라 하겠다.

해외시장 진입전략에 관한 소고

정창근,이성호 동국대학교 경제경영연구원 무역연구부 1999 國際貿易硏究 Vol.23 No.2

Eighteenth German Literatur and Antique Reception-Symposium and Anti-Symposium : A Note on Wieland's Aristipp

정상건 충남대학교 인문과학연구소 1983 인문학연구 Vol.10 No.2

“18세기 독문하과 고대수용문학 - 심포지움과 反 심포지움 : 뷔란트 아리스팁에 관한 주석” Aristipp는 古代 희랍의 哲學者로서 Dyrenaic學派의 創始者이기도 하다. 그러나 Wieland는 Aristipp을 한 歷史的 人物 묘사를 초월하여 Diogenes Laertios, Horace, Cicero, Plutarch, Athenaios 등이 쓴 Aristipp 자료를 참고로 당시 18세기 개?주의 思想의 경향에 따라 批判的이고도 理想的인 Humanist로 부각시켰다. 本論文 뷔란트의 “Aristipp” 作品 제3권 제12장을 中心으로 그곳에 나타나는 女主人公 Lais의 “심포지움”을 플라톤의 “심포지움”과 비교, 그 상반된 관계를 분석연구하였다. 뷔란트는 프라통의 “심포지움”을 모방, 파로듸화하여 소위 “反심포지움“이란 개념 아래 Aristipp의 生의 哲學, 認識論, 그 중에서도 특히 Eros에 대한 문제점을 다루었다. 결국 뷔란트作品 “Aristipp”에서 우선 무엇보다도 人間이 親和性을 發見할 수 있다.

산·염기 변화가 집토끼 유두근 막전압에 미치는 영향

정부근,엄대용,이상돈 중앙대학교 의과대학 의과학연구소 1983 中央醫大誌 Vol.8 No.1

The effect of acid-base on the electrical and mechanical properties of myocardial cells were investigated in the isolated right ventricular papillary muscle preparations of rabbits by measuring simultaneously isometric contraction and the action potential by glass microelectrode transducer in acidic or alkali conditions respectively. Results were as follow : 1. The acid condition decreased the isometric contraction and at the sametime increased the time to repolarize 90% of its action potential amplitude.(Repol 90%) from 234±9.1 msec of the control to 244±6.8msec(P<0.01). 2. The alkali condition, on the other hand, increased the isometric contraction and lengthened Repol 90% from 256±49.3 msec of the control to 286±75.2msec(P<0.1) but Repol 95% lengthened more prominently from 281±66.8msec of the control to 329±101.5(P<0.05). The above result suggests that acid and alkali decreased and increased slow inward current respectively to reduce and augment the isometric contraction. In acidic condition, the reduction in delayed outward current might also play a role in augmented action potential duration.

두경부 유리피판 26례 분석

정복성,윤근철,심경보,고경석,한상훈 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3

Twenty four patients(21 males and 3 females) aged 14 to 70 years underwent 26 microvascular free tissue transfers in head and neck reconstructions from April 1990 to July 1992 (27 months) . Nineteen cases were tumors in head and neck area, and four were acquired deformities such as burn alopecia, burn scar contracture of the neck, Romberg disease and frontal sinus infection, and one was hemifaclal microsomia. The free flaps were executed successfully in 15 upper aerodigestive tracts, in 2 scalps and 3 skull bases and in contouring and resurfacing six facial and cervical lesions. The selection of donor site was bases upon the location of defect and the volume of tissue required : the forearm free flap was used in 11 cases, the rectus abdominis in 5, the groin in 2, the jejunum in 2, the occipital scalp in one, the first toe web space in one, the latissimus dorsi in one, the serratus anterior in one, the parietotemporalis fascia in one and the omentum in one. The free tissue transfers were primarily indicated in all patients in our series and there was no flap failure. The complications were minimal and the morbidities low. A free flap in the head and neck area is not only the most expedient method of reconstruction but also either the most reliable or the only available one in some clinical situations.

내분비 기능이 없는 췌장 도세포 종양-1예 보고

정재걸,박건춘,윤상기,한덕종,조영국 울산대학교 의과대학 1993 울산의대학술지 Vol.2 No.1

Nonfunctioning pancreatic endocrine tumor is a rare disease without showing any specific clinical manifestations. Indolent growth of this tumor has a prognosis in between functioning endosrine tumor of pancreas and exocrine adenocarcinoma. We experienced a nonfunctioning pancreatic islet tumor in 59 year old male patient. The tumor in the body of pancreas was clinically silent and had no hormonal activity in immunohistochemical staining

미세가공기술을 위한 규소기판 접합

안근영,정귀상,이경수,윤선진,강상원 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

신경망 기본소자 MQW-IMD의 설계

박상정,송정근,홍창희 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1

A novel semiconductor device called a MQW-IMD(Multi Quantum Well Injection Mode Device) is designed for the hardware implenentation of electronic pulse mode neural network. As the operation is analogous to biological neuron, the device can be used as basic PE(Processing Element) of artificial neural system. The neural trigger circuit consists of a MQW-IMD and paralled RC load. For the optimization of the trigger circuit, The electron energy accelerated in AlxGa₁- xAS/GaAs barrier was calculated Ensemble Monte Carlo method in according with the electric field for A1 mole fraction, x=0.4 In the consideration of electron temperature and average ionization rate as well as ionization cross section, we extracted the improved relationship between the pulse frequency and the input voltage.