일측폐환기시 환기폐의 호기말양압과 비환기폐의 지속적기도양압이 동맥혈산소분압 및 기도저항에 미치는 효과

이정은,조정옥,정규돈 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.2

One lung ventilation is essential for the protection of the healthy lung from contamination by spilage of secretion from the diseased lung and offering acceptable condition for surgeon. But it can cause inadequate ventilation and oxygenation. The purpose of this sutudy is to evaluate the effect of application of PEEP(5cmH_2O) on ventilating lung and CPAP(5cmH_2O) on nonventilating lung respectively during one lung anesthesia. Mean arterial blood pressure, heart rate, arterial blood gas analysis and airway pressure were measured before, during and after one lung ventilation in eight lung cacer patients and seven pneumothorax patients. There were no significant changes with blood pressure and heart rate. And blood gas analysis results showed normal findings. Mean and peak airway pressures and lung compliance were increased significantly(p<0.05) following one lung ventilation and returned control values after two lung ventilation.

農村地域住民들의 癌에 의한 死亡樣相調査

尹敞奎,沈雲澤 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.1

We investigated on the cancer death from 15 Myons in Chungnam and Chungbuk Provinces from January 1, 1975 to December 31, 1984. The cancer we studied was classified to the Stomach cancer, Hepatic cancer, Lung cancer, Uterine cancer, Leukemias and Other cancers in accordance with the Korean Standard Causes of Death Classification. The results were Summarized as Follows: 1. Stomach cancer was the most frequent cause of deathes with 60.7%, next were Hepatic cancer as 12.2% and Lung cancer as 9.4%. The rates of Stomach cancer, Hepatic cancer and Lung cancer have been increased as years goes on. 2. The rates of Stomach cancer were significantly different by the area, those were 68.9% in seaside area, 62.5% in mountainous area and 52.5% in palin area. 3. The main causes of cancer death in urban residents were Stomach cancer as 43.8%, lung cancer as 15.0%, and Hepatic cancer as 13.7% but in rural residents, those were Stomach cancer as 65.0%, Hepatic cancer as 11.8% and Lung Cancer as 8.0%. 4. Of the total cancer death, male was 65.6% and female was 34.4%. The maiu causes of death in male were Stomach cancer, Hepatic cancer, Uterine cancer and Other cancer in that order. 5. 50-59 years age group was the most freguent age group of cancer death, next were 60-69 years age group and 40-49 age group in that order. 5. The main causes of cancer deaths of farmer, fisher & merchants were Stomach cancer, Hepatic cancer and Lung cancer, but those of public officres and office worker were Stomach cancer, Hepatic cancer and Other cancer in that order. 7. There were significant difference by educatinonal level in the frequent causes of deaths. Frequent causes of cancer deaths were Stomach cancer, Hepatic cancer and Lung cancer in below primary school graduates group, Stomach cancer and Leukemias in higher than those of high school graduates. 8. Of the total cancer deaths, the rates of deaths was 26.1% in Summer, 25.4% in Spring, 24.2% in Autumn but 24.1% in Winter in that order.

HL-60 세포주를 이용한 결핵균항원의 세포성면역반응의 분석

박정규,강윤중,김운옥,임재현,송창화,조은경,김화중 충남대학교 의학연구소 2001 충남의대잡지 Vol.28 No.2

Most persons who become infected with M. tuberculosis mount a protective immune response and remain clinically well, the only evidence of infection being development of a positive tuberculin skin test. Five to 10% develop tuberculosis disease within the first 2 years after infection (primary tuberculosis) or thereafter (reactivation tuberculosis). Acquired resistance against tuberculosis paradigmatically rests on cell-mediated immunity, with the major factors being mononuclear phagocytes and T Lymphocytes. While the former cells act as the principal effectors, the latter ones serve as the predominant inducers of protection. The usefulness of the single dose of BCG routinely given in childhood in many developing countries in preventing far more commonly occurring tuberculosis in adults is in doubt. An effective and safe vaccine against tuberculosis is sorely needed. A subunit vaccine are capable of inducing protective immunity and could have substantial advantages over BCG or other whole-bacterium vaccines. The human promyelocytic cell line HL-60 adopted characteristic macrophage-like properties, including adherence and CD14 expression after a period of continuous culture at high ambient CO_(2) concentration. When HL-60 cells were cultured with 1,25-dihydroxyvitamin D_(3) for 4 days, the cells acquired the activity to potentiate T cell proliferation by the 30 kDa or 38 kDa antigen of Mycobacterium tuberculosis H37Rv Therefore, vitamin D-treated HL-60 cells showed the function of the antigen presenting cells.

Experimental study on condensation heat transfer characteristics of special heat transfer tubes

한규일,박종운,권영철,조동현 대한설비공학회 2001 설비공학 논문집 Vol.13 No.9

In this study, condensation heat transfer characteristics were conducted with special heat transfer tubes of SH-C type. Experiments were carried out the saturated vapor temperature of 334K and the wall subcooling of 1.5-4.5K. The refrigerant was R-113 and the enhanced tubes used in the present study were SH-CDR, SH-CYR and SH-CHR. The experimental results showed that the condensation heat transfer coefficients of SH-C type tubes were about 23-66% higher than those of a low integral-fin tube. It was visualized that the condensed liquid on the outer surface of SH-C type tubes flowed continuously down unlike a low integral-fin tube and a plain tube, due to a 3-D extending fin on the outer surface of SH-C type tubes. As a result, the thermal resistance of the condensed liquid decreased and the heat transfer coefficient increased. Also, the enhancement ratio of SH-CDR tube was the highest, and it was about 9-11 times as compared to that of a plain tube.

비강상악동 미분화암종

김운규,김수관,조세인,윤정훈 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.4

Sinonasal undifferentiated carcinoma(SNUC) is an uncommon aggressive malignancy of the nasal cavity and paranasal sinuses. Since the initial recognition of SNUC as a distinct clinicopathological entity, treatment regimens have evolved to include the current recommendation of combined radical resection, radio-therapy and chemotherapy. Despite this aggressive therapy, outcomes have remained dismal, with the mean survival time still being less than 1 year after diagnosis. SNUC present with locally advanced disease, with a tendency for the tumor to spread from the paranasal siuses to the orbit and anterior cranial fossa. A case of SNUC occurred in the left maxilla showing an unusual clinical manifestations and a fulminant course of disease, is described with literatures review. A 77-year-old female patient presented with rapidly growing tumor-like bulging of the left maxilla and slight ulceration of the right upper posterior vestibule. At the first biopsy, diagnosis was a radicular cyst, but SNUC was made subsequently by the second biopsy 6 month later. Rapid and wide extension from the maxilla to the orbit and nasal cavity developed with infection. Although the time relationship is not clear, local invasion could be developed from localized disease of SNUC. Despite combined therapy with chemotherapy and radiotherapy, She has been expired 13 months after the first biopsy. Focal positivity of immunohistochemical stain(CK, EMA), which is a specific characteristic of SNUC, may serve as a factor showing unfavorable prognosis.

타이어 설계인자를 고려한 자동차의 조종 및 안정 특성에 관한 연구

윤성운,홍석주,최규남 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.2

As the technique of automobile industry is being advanced, the advancement of performance for vehicle is being required. In order to achieve this purpose, the study on the handling and stability which are produced by moving vehicle is carried out actively. Ability to predict vehicle performance using computer simulation is essential to reducing the development time for tire companies as well as car makers. From the previous research. we showed that handling simulation tool developed for J-turn and lane change maneuvers on ADAMS could be used in predicting the performance difference among tires with different specifications in vehicle mild handling behaviors. Through this study, some meaningful correlations were achieved. Also barriers to direct application of the simulation technique to tire development process and several technical problems that should be resolved were iden tified. In this results, ability to predict vehicle performance using computer simulation is essential to reducing the development time for tire companies as well as car makers.

가족기능도지수(Family APGAR Scores)에 관한 기초조사 연구

강성규,윤방부,이혜리,이동배,심운택 대한가정의학회 1984 Korean Journal of Family Medicine Vol.5 No.12

보조조사 '-들'에 대한 연구

방운규 건국대학교 1995 대학원 학술논문집 Vol.41 No.-

This paper is concerned with elucidating the semantic and syntactic characteristics of '-dl(-들)'. Major contens dealed with in this study can be summarized as follows : (1) '-dl(-들)' is auxiliary particle that freely combines with a variety of linguistic forms and adds the meaning of plurality to them. (2) '-dl(-들)' indicates that the word combined with it is plural, and when it is combined with adverbial words or predicate words, it shows that the subject word of sentence is plural. (3) The grammatical characteristic of '-dl(-들)' is follows: a: Since '-dl(-들)' is not only regularly combined to a number of countable nouns but can conbine with various linguistic forms in case the subject word of a sentence is omitted, it can bee seen that its scope is extensive. b: In case, the subject word of sentence is omitted, '-dl(-들)' must combine with other linguistic formats, but in so doing '-dl(-들)' recall that subkect word of the sentence is omitted and that it is plural. c: When the subject word of a sentence is omitted, '-dl(-들)' transform the lingustic format with which it combines from the structure of 'noun + ha - (하-_)' to 'noun + -dl(-들)' ha-(하-)', and the derivation affix of '-ha-(-하-)' is made to become the verb 'ha-(하-)', to 'noun + dil(-들)' ha-(하-)', and the derivation affix of '-ha-(-하-)' is made to become the verb 'ha-(하-)'.

현대 국어의 부름말 연구 : 들을이 높임법과 관련해서

방운규 건국대학교 1995 대학원 학술논문집 Vol.42 No.-

This article is intended to discuss the vocative words of the contemporary korean language in association with the listener-honorific mood. Major contens dealed with in this study can be summarized as follows : (1) The vocative words means the ones used to call the partner, and the method of accom-plishing it in cludes the one through suffixes, the one through particles and the one through vo-cabularies. These vocative words keep [ + honorific] in contrast with [ - honorific]. (2) The listner - honorific mood means the one used to speak to the listner with his honorific intention. This, for the most part, is accomplished by the end - from, which also is kept in constrast between [ + honorific] and [ - honorific]. (3) The vocative words with the quality of [ + honorific] are integrated only with the end of the intentional mood with the quality of [ + honorific], while the vocative words with the quali-ty of [ - honorific] are integrated only with the end of the words in the intentional mood with the quality of [ - honorific].

광직접 회로용 유전체 평판 도파관의 특성에 관한 연구

백운식,박한규 연세대학교 산업기술연구소 1981 논문집 Vol.13 No.1

전자빔 증착법에 의해 유전체 박막을 현미경 슬라이드 위에 입혀서 光도파 실험을 행하였으며 박막재료로는 BaSiO₃, TiO₂, BaTiO₃등의 유전체를 선택하였다. BaSiO는 BaCO₃와 SiO₂를 1100℃의 반응온도에서 3시간 유지시킴으로써 합성하였고, BaTiO₃는 1000℃에서 12시간 반응시켜 타게트로 준비하였다. 형성된 박막의 두께 및 굴절율을 측정하였으며 BaSiO₃, TiO₂, BaTiO₃ 박막의 굴절율은 각각 1.68, 2.6, 2.45로서 좋은 결과를 얻었다. 光도파 손실 측정에 있어서는 입출력 프리즘을 박막도파관에 결합시켜 도파된 레이저빔의 결합각을 60。로하여 단위 길이당의 손실을 측정한 결과 BaSiO₃, TiO₂, BaTiO₃의 光도파관의 손실은 각각 4(dB/cm), 6(dB/cm), 9(dB/cm)로서 비교적 양호한 도파특성을 얻었다. Dielectric optical waveguides (of BaSiO₃, TiO₂, and BaTiO₃) were fabricated on microscope slides by the electron-beam evaporation. As the targets for E-beam evaporation were selected BaSiO₃, TiO₂, BaTiO₃and each material is reacted by BaCO₃, SiO₂, TiO₂ under the appropriate conditions. Thicknesses and refractive indices of dielectric waveguides were measured and the results were consistent with the reported values. Loss measurements of laser beam in the optical waveguides per unit length were performed. The coupling angle of laser beam and prism was 60。 and losses per unit length of dielectric waveguides of BaSiO₃, TiO₂, BaTiO₃were 4(dB/cm), 6(dB/cm), 9(dB/cm) respectively.