遲延 乾燥 잉크와 非塗被紙 間의 앵커포인트 위치가 印刷適性에 미치는 影響

윤종태 釜山工業大學校 1994 論文集 Vol.36 No.-

The printability between 20 Kinds of physically tested uncoated paper and 10 kinds of ink was discussed. And determinations of a number of physical properties and value of laboratory test printing with IGT printability tester were obtained. Results from this investigations, excellent correlation was found between the situation of anchor point and print through. The maximum points in ink transfer curve and the coefficients of oil absorption of the papers also depend mainly upon the situation of anchor points, but the dependance of such physical properties as air permiability, speciffic area, water sorbency and bulk of papers could not be found. They exhibit low correlations with laboratory test printing results, which offer solid print characteristics that the printability parameters such as rub off or set off depend upon the ink components rather than physical properties of papers. A choice of the most important arguments is made control of printabilly of uncoated paper.

척수압박으로 발현된 급성 골수성 백혈병에 동반된 과립구성 육종 1 례

윤상준,김영곤,김희종,박유환,정춘해,김양수,김태균,박영진,전호종 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1

저자들은 척수압박으로 하지마비를 보인 환자에서 수술 후에 급성 백혈병에 동반된 과립구성 육종으로 진단된 환자 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Granulocytic sarcoma(GS) is an uncommon tumor composed of immature cells of the granulocytic series. Most case of GS occur in the course of acute leukemia and the blast crisis of chronic leukemia, Rarely, however, it may present before leukemia becomes clinically apparent. It may also occur in patients with myeloproliferative disoders. GS has been reported that it occurs in 3% to 9% of patients with acute myelogenous leukemia(AML) and the incidence of GS is reported to be higher in patients with t(8;21). GS occurs relatively commonly in africa and has been reported to affect 10-25% of black children presenting with AML. This is very rare case of granulocytic sarcoma with AML(FAB M5) presented with spinal cord compression which was supported by decompression laminectomy.

간이 폐기능측정기 (mini-Wright)와 비강세척액 (Nasal Lavage)을 이용한 대기오염물질과 호흡기 건강영향 분석

이종태,정용,현연주,조혜련 한국환경독성학회 1999 환경독성보건학회지 Vol.14 No.1

A large number of studies have indicated associations between the impairment of respiratory health and exposure to ambient air pollutants such as ozone (O₃), nitrogen dioxide (N0₂), sulfur dioxide (S0₂), particulate matters (PM_(10)). To evaluate this associations, we used the pulmonary function tests (peak expiratory flow rate: PEFR) by mini-wright peak flow meter and counting neutrophils in the nasal lavage (NL) as biomarker. From 15 June to 16 July 1998, for the workers in the highway tollgates, PEFR and NL were measured three times daily and twice per week, and association between the level of air pollutants and PEFR and NL were analyzed using the multiple regression model and the poisson regression model respectively. The results indicated that the effects of all measured air pollutants (SO₂, NO₂, O₃, PM_(10)) were not significantly associated with the value of PEFR. On the other side, S0₂, NO₂, PM_(10) were significantly associated with the number of neutrophils in NL. The increase in SO₂, N0₂ of 10ppb and in PM_(10) of 10μg/m³ was associated with 24%, 21%, 35% increases in neutrophil counts. But the ozone exposure was not associated with NL.

농산물 소독과정에서 브롬화메틸에 노출된 근로자에게 발생한 신경병 2례

박태혁,김정일,손지언,김종국,김형수,정갑열,김준연 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.4

목적 : 농산물 소독과정에서 브롬화메틸에 노출된 근로자에게 발생한 신경병 2례 보고. 방법 : 피로감, 전신무력감, 어지럼증, 보행장애 등의 증상을 주소로 내원한 브롬화메틸을 사용하여 방역작업에 종사하는 건강한 20세와 18세의 근로자를 대상으로 혈액검사, 신경정도 및 근전도검사, 뇌자기공명영상 등의 임상검사와 작업력조사를 시행하였다. 결과 : 1례에서 뇌자기공명영상에서 연수와 소뇌의 양측 측충부의 고신호강도가 관찰되었고 11일 후의 추적조사에서 동일 부위의 고신호강토가 감소된 소견이 관찰되었으며 뇌병증으로 최종 진단되었다. 다른 1례는 신경전도검사에서 다발성 신경병 소견과 뇌유발전위검사에서 우측 하부 뇌간부위 병소가 관찰되었고 뇌병증 및 말초신경 병으로 최종 진단되었다. 결론 : 근로자들의 증상은 소독과정에서 브롬화메틸 노출로 인한 신경 병으로 판단되며 훈증소독과방역작업에 종사하는 근로자들의 실태조사와 안전에 대한 대책이 시급하다고 하겠다. Objectives : To report two cases of neuropathy due to methyl bromide intoxication. Methods : Workers, engaged in the fumigating process, complained fatigue, general weakness, ataxia, and hypersomnia. We evaluated them with blood tests, neurophysiologic studies and MRI and investigated their occupational history. Results : Increased signal intensities were found in the medulla oblongata and paraver mian of cerebellum in MRI and after 11 days, high signal intensities were reduced in the following MRI. In the other case, polyneuropathy and rlght lower brainstem lesion were observed In the NCV and BAEP studies. Conclusions : We confirmed that worker's symptoms were related to methyl bromide exposure in the fumigation. It is necessary that we should evaluate present condition of fumigating process and prepare appropriate methods to protect workers engaged in the fumigation.

정신과 입원환자에서의 혈청 콜레스테롤 농도와 공격행동

전태연,도규영,정종현,권용실,김석범 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

목 적 : 혈청 콜레스테롤 농도와 자살 등의 공격행동간의 연관성에 관한 여러 연구가 있었으나 일치된 결과를 보이고 있지 못하다. 이에 저자들은 다양한 진단의 정신과 입원 환자들 중 공격행동을 보인 환자의 콜레스테롤 농도를 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추어 공격행동 및 자살시도와 혈청 콜레스테롤 농도간의 연관성을 알아보기 위하여 본 연구를 시행하였다. 방 법 : 본 연구는 1994년 1월 1일부터 1995년 6월 31일까지 18개월간 카톨릭대학교 의정부성모병원 정신과 병동에 입원하였던 환자 중 콜레스테롤 농도를 얻을 수 있었던 127명을 대상으로 하였다. 대상 환자는 공격행동의 유무에 따라 공격군과 비공격군으로 분류하여 공격군 35명과 비공격군 92명의 자료를 얻었으며, 공격군은 Overt Aggression Scale을 사용하여 평가하였다. 측정된 각 환자의 콜레스테롤 농도는 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추어 4개의 군으로 나눈 후 공격행동 발생비율, 자살시도간의 차이를 알아보았다. 또한 공격행동을 보인 군에서도 각 콜레스테롤군 간의 총 공격 점수를 비교하였다. 결 과 : 1) 각 콜레스테롤군 간의 공격행동 발생비율에는 유의한 차이가 없었다. 2) 공격군에서 각 콜레스테롤군 간의 총 공격 점수는 유의한 차이를 보이지 않았다. 3) 각 콜레스테롤군 간의 자살시도 빈도는 유의한 차이가 없었다. 결 론 : 정신과 입원 환자의 혈청 콜레스테롤 농도를 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추었을 때 혈청 콜레스테롤 농도와 공격행동 및 자살시도에 유의한 연관이 없었다. Objectives : An association between serum cholesterol concentration and violent behavior has been suggested, but has not been consistently demonstrated. This study was conducted in order to evaluate the relation between serum cholesterol concentration and violent behavior in psychiatric inpatients who had been admitted at Uijongbu St. Mary's Hospital, the Catholic University of Korea from January 1994 to June 1995. Methods : We divided the 127 subjects into violent(35 subjects) and non-violent group(95 subjects). According to the percentile distribution of serum total cholesterol in healthy Korean adults, the subjects were classified into four subgroups : Group 1, subjects Whose cholesterol concentrations were below 26% of percentile distribution, Group 2, from 26% to 50%, Group 3, 51% to 75% and Group 4, above 75%. In the four cholesterol subgroups, the authors examined the incidence of violent behaviors and suicidal attempts. Within the violent group, total aggression score of four cholesterol subgroups was compared. Results : 1) Among the four cholesterol subgroups, there were no significant differences in the violent behavior. 2) Within the violent groups, total violent score of the four cholesterol subgroups showed no significant difference. 3) Among the four cholesterol subgroups, there were no significant differences in suicidal attempt. Conclusion : When the serum cholesterol concentrations of psychiatric inpatient applied to the percentile distribution of serum total cholesterol in healthy Korean adult, no association was found between serum cholesterol concentration and violent behavior and suicide attempt.

부하 감지 유압 서어보 시스템의 신경회로망 제어

박중윤,김영태,김성동,김종선 金烏工科大學校 1991 論文集 Vol.12 No.-

The positive feedback property of the load-sensing mechanism deteriorates the control performance of the hydraulic system while this mechanism improves the energy efficiency of the system. This paper considers a neutral net control in order to achieve good control performance of the load-sensing hydraulic system. The proposed controller has a structure of multilayer perceptron and it is learned by a feedback error signal and the back propagation algorithm. The results of the simulation studies show that the neural net controller can produce better control performance than conventional PID controller in nonlinear systems such as hydraulic systems. The neural net control system also shows excellent trajectory tracking performance and robustness against external disturbances.

Dermatophagoides farinae 자극에 대한 알레르기 천식 환아에서의 Th 및 Tc 림프구 반응

한윤수,박진우,김상태,박종국 충북대학교 의학연구소 2000 忠北醫大學術誌 Vol.10 No.1

연구목적: 본 연구에서는 Dermatophagoided farninae(Df)에 알레르기를 나타내는 소아 천식 환아들의 말초혈액 단핵세포를 여러 농도의 Df 존재 하에서 배향한 후 T helper(Th) 및 T cytotoxic(Tc) 림프구 반응을 관찰하여 Df 농도 변화에 따른 Th 및 Tc 림프구 반응의 변화를 관찰하고 면역요법 시행 유무에 따른 Th alc Tc 림프구 반응의 차이를 단일 세포 수준에서 관찰하고자 하였다. 대상 및 방법: 천식 증상으로 충북대학교 소아과 알레르기 클리닉을 방문하여 피부 단자 검사상 Df에 강양성(4±)을 나타낸 10 명의 소아 알레르기 천식 환자를 대상으로 하였다. 8세에서 11세 사이의 소아만을 연구에 포함시켰으며, 이 중 소아 5명은 최소 2년 동안 면역요법을 시행 받은 환자들이었다. 환아들로부터 말초혈액 단핵세로를 분리하여 각각 0, 0.1, 1, 10 ㎍/㎖의 Df 존재 하에서 5일 동안 배양한 후 유세포 분석을 실시하여 Th 및 Tc 림프구의 빈도를 관찰하였으며, 이를 이용하여 Th2/Th1 및 Tc2/Tcl 비율을 계산하였다. 결과: 모든 환아에서 Df 자극에 의한 우월한 Th2 림프구의 빈도를 관찰하였으며, 이를 이용하여 Th2/Th1 및 Tc2/Tcl 비율의 증가가 관찰되지 않았으나 10㎍/㎖의 Df 농도에서는 Tc2/Tcl 비율 증가에 비해 Df 자극에 의한 Tc2/Tc1 비율의 증가가 상대적으로 적었으며, 모든 환아들에서 0.1 및 1 ㎍/㎖의 Df농도에서는 현저한 Tc2/Tc1 비율의 증가가 관찰되었다. 면역치료를 시행받지 환아들에 비해 면역치료를 시행 받은 환아들에서 Th2/Tc1 비율의 증가가 관찰되지 않았으나 10㎍/㎖의 Df농도에서는 현저한 Tc2/Tc1 비율의 증가가 관찰되었다. 면역치료를 시행받지 환아들에 비해 면역치료를 시행 받지 환아들에 비해 면역치료를 시행 받은 환아들에서 Th2/Th1 비율 및 Tc2/Tc1 비율이 상대적으로 낮았다. 결론: Tc 림프구는 Th 림프구에 비해 IL-4 생성을 유도하는 Df 자극에 저항성을 나타냈으며, 알레르기 면역치료를 시행받지 않은 환아들에 비해 면역치료를 시행 받은 환아들의 Th 및 Tc 림프구는 IL-4 생성을 유도하는 Df 자극에 저항성을 나타낸다. Purpose : The objectives of the present' study were to demonstrate Th and Tc lymphocyte responses to graded doses of house dust mite (HDM) in HDM allergic child patients and to determine differences in the HDM-induced Th and Tc lymphocyte responses between untreated and treated patients. Materials and Methods : This study included ten Dermatophagoides farinae (Df)-sensitive asthmatics of which five children received immunotherapy to Df over a 2-year period. Peripheral blood mononuclear cells ( PBMC) were isolated from peripheral blood of each patient and cultured in the presence of graded doses of Df extract (0, 0.1, 1, 10 ㎍/㎖) 5 days. After harvest of cultured cells, Th and Tc cell frequencies were determined by a multiparameter cytosine flow cytometric assay that allows simultaneous determination of intracellular IFN-γ and IL-4 in CD4+ or CD8+ cells. Results : Predominant Th2 responses to 8f were observed in all of the patients, especially at ㎍/㎖ of .Df Dose-dependent pattern in 8f-induced increases of Th2/Thl ratio was observed in three of untreated and one of treated patients. Increases in Tc2/Tcl ratio were less prominent than those in Th2/Thl ratio. There were no significant increases of Tc2/Tcl ratio at low concentration of Df, which were observed only at 10 ㎍/㎖ of Df. Df-induced increases of Th2/Th1 and Tc2/Tc1 ratios were less remarkable in treated than untreated patients. Conclusion : Tc Iymphocytes were more resistant to Df-induced stimulation to produce IL-4 than Th lymphocytes. Th and Tc lymphocytes of immunotherapy treated patients were more tolerant to the effect of Df to produce IL-4 than untreated patients.

비강비호즈킨 림프종의 전산화단층촬영 소견 : CT Features

노태연,백호길,원종부,박성호,박오봉,백승국,신미정,김봉기,최한용 침례병원 1998 浸禮病院學術誌 Vol.14 No.-

화성(유천성)과 버드나무에 관한 연구

김학범,윤종태 한국정원학회 2002 한국전통조경학회지 Vol.20 No.4

This study is to analyze the meaning and planting pattern of Salix in the Suwon Whasung(Yochunsung). The goal of this study is to investigate the relationship between Salix planting and principles of Korean traditional urbanscape. The methodology of this study is vased on literature review as secondary data research. The literature review explores the publications that were issued in the Li dynasty such as the government official documents, books and painting(including Chosun dynasty chronicles, Whasung Jeondo, Whasung Sungyok Uique, etc.). Throughout the literature review, the following results are found. 1. From the analysis of the old maps, Salix was a main species of street trees in the Suwon Whasung. Especially, the planting from Whahongmun to Whasanruing showned a pattern of a linear function in urbanscape. 2. Salix trees were planted along rivers, streams, creeks and lakes in the Suwon Whasung. These planting patterns explain the relationship between Salix and the urban hydrology system. From this study, we have found are remarkable results which explain a principle of urbanscape formation in the Yi dynasty. The results of this study would contribute to finding the original forms and preserving Suwon Whasung as one of the World Cultural Heritages.

뇌 농양의 임상적 분석

김정수,성연상,강재규,도종웅,정현태 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.3

The authors reviewed 24 Patients with brain abscess from January 1986 to December 1990. The male to female ratio was 16:8 and most frequently developed at second decades. The commonest cause was chronic ear infection with abscess in the temporal lobe, and common organism was proteus species. All patients received a total of 6 weeks of antiobiotic therapy. Surgery was performed in 24 patients. Drainage of drainage and later capsulectomy may offer a simple, safe and easy removal of capsule. There was no postoperative death or empyema. The most important predictor of outcome was the patients condition when first seen. Early specialist care, computerized tomography, correct choice and dosage of antibiotics, and the surgical methods in present use should make this a benign disease.