미소 진폭 파형벽을 가진 유로내에서 凝縮을 수반하는 定常 2次元 超音速 流動

權純範,金丙知,安亨濬 慶北大學校 1992 論文集 Vol.52 No.-

The characteristic of the steady two-dimensional supersonic flow with condensation along a wavy wall of small amplitude in channel is investigated through the direct marching method of characteristics. The very complex problem that may appear where the overlapping of the same family charateristics occurs, can be satisfactorily solved by means of the modified method suggested by Zucrow. In the present study for the case of supersonic moist air flow, the dependency of location of formation and reflection of oblique shock wave generated by the wavy wall, and distributions of flow properties, on the relative humidity and temperature at the entrance of wavy wall is clarified by plots of frozen Mach number and iso-flow properties. Also, it is confirmed that the wavy wall plays an important key role in the formation of oblique shock wave, and that the effect of condensation on the flow field appears apparently.

총체적 언어중재가 다운증후군 아동의 발화에 미치는 효과

권형지,박선희,강수균 대구대학교 특수교육재활과학연구소 2005 특수교육재활과학연구 Vol.44 No.3

본 연구는 총체적 언어중재가 다운증후군 아동의 발화 자율성의 증가, 의사소통 의도의 변화, 그리고 전반적 언어능력이 향상되었는지를 알아보고자 하였다. 이를 위하여 생활연령이 9.9~13.2세 범위이고, 약물 복용이나 다른 신체적 장애가 없는 다운증후군 아동 3명을 대상으로 언어중재를 실시하였다. 이를 위하여 사전 - 사후 설계를 적용하였고, 사전 평가 단계, 중재 단계, 사후 평가 단계의 과정으로 실시하였다. 본 연구의 결과 첫째, 총체적 언어중재가 다운증후군 아동의 발화에서 발화의 자율성이 증가되었다. 둘째, 총체적 언어중재가 다운증후군 아동의 발화에서 의사소통 의도가 변화되었다. 셋째, 총체적 언어중재가 다운증후군 아동의 전반적 언어능력을 증가시켰다. 이상과 같은 결과를 바탕으로 총체적 언어중재가 다운증후군 아동의 언어능력에 긍정적인 영향을 미쳤다는 것을 알 수 있다. The purpose of this study was to examine the effect of a whole language intervention in the utterance development in children with Down syndrome. Three boys with Down syndrome, who were in the range of 9.9 years to 13.2 years old, participated in the study. None of subjects showed visual, hearing, emotional, and/or behavioral problems besides Down syndrome. To investigate each subject's language ability, 3 examination tools were administered: The production of voluntary utterances, the variety of conversational intension, and the Preschool Receptive-Expressive Language Scale(PRES). This study used pre-post treatment design. The results of study were as follow: First, the whole language intervention improved the subjects' mean of production of voluntary utterances. Secondly, the whole language intervention improved the subjects' mean of variety of conversational intension. Thirdly, the whole language intervention improved mean of the overall language development for all the subjects. As described above, the whole language intervention improved semantic, syntactic, pragmatic ability of language for all the subjects.

흉막삼출의 유무에 따른 쯔쯔가무시증 환자간의 비교

권세훈,김형호,강지인,하재하,한경택,이재록,김동민,권용은,윤성호,이승일 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.1

Scrub typhus is a potentially fatal infectious disease caused by the organism Orientia tsutsugamushi. Clinical manifestations are fever, skin rash, eschar and varying degree of respiratory distress. The pleural effusion in scrub typhus is rare and secondary to the destruction of vascular endothelium. Because the respiratory symptoms are generally mild and the pleural effusion in scmb typhus is rare than in interstitial pneumonia, there are few comments about the characteristics of scmb typhus with pleural effusion. So we made the comparative study of scmb typhus patients between with pleural effusion and without pleural effusion. 연구배경 치명적일 수 있는 감염질환 중 하나인 쯔쯔가무시중(Scrub typhus)에서 드문 흉막삼출을 동반한 환자에 대한 고찰은 다른 문헌에서도 자주 언급되지 않았다. 따라서 본 저자들은 흉막삼출이 있는 경우와 없는 경우에 따른 쯔쯔가무시중 환자들을 비교하고자 하였다. 방법 2003년에서 2006년까지 조선대학교 병원 내과에 입원중인 환자 중 쯔쯔가무시중 진단을 받은 총 109명의 환자를 대상으로 하여 흉부 X선 검사 및 혈청학적 검사(CPK, LDH, ESR, CRP, AST, ALT, ADA), 혈액학적 검사(WBC, PLT) 및 백분율 검사등을 실시하였다. 결과 흉막삼출이 있는 환자들의 경우 흉막 삼출이 없는 환자들에 비해 ESR 수치가 통계학적으로 의의있게 높았다(p-vaule < 0.05). 결론 흉막삼출 유무에 따른 쯔쯔가무시중 환자간의 비교에 있어 ESR 수치가 통계학적인 의의를 가졌다.

미소 진폭 파형벽을 가진 유로내에서 응축이 수반되는 초음속유동의 Prandtl-Meyer 팽창에 관한 실험적 연구

권순범,안형준,김병지,선우은 경북대학교 산업기술연구소 1993 産業技術硏究誌 Vol.21 No.-

The characteristics of the Prandtl-Meyer expansion of supersonic flow with condensation through a channel with a small amplitude wavy wall are investigated experimentally. In the present study, for the case of moist air flow in the type of indraft supersonic wind tunnel, the dependency of formation and reflection locations of the oblique shock wave and the distribution of flow properties are clarified by flow visualization and pressure measurement with the variation of the specific humidity and temperature at the entrance of the wavy wall and the attack angle of the wavy wall to the main stream. Also, we confirm that the wavy wall plays an important key role in the formatio of oblique shock wave, and that the effect of condensation on the flow field appears apparently.

신경섬유종증 환자에게서 발생한 특발성 혈소판 감소증 1예

권세훈,김형호,강지인,장재혁,원경준,장재현,김상용,배학연 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3

Idiopathic thrombocytopenic purpura is a disease characterized by thrombocytopenia in peripheral blood with positive anti-platelet antibody titer, no splenomegaly, the presence of megakarocyte. The causes of idiopathic thrombocytopenic purpura were usually related to autoimmune disease, infection and drugs. A 46-years-old man was admitted for evaluation of abdominal mass. He has many cafe-au-lait spots and nodules in almost skin for 30 years. Several years ago, he palpated mass in Lt. inguinal area. hIe has known the abdominal mass after checking abdomen CT in local clinic and visited our hospital for evaluation of abdominal mass. At admission, laboratory tests showed hemoglobin 12.5 g/dL, hematocrit 38.4 %, WBC 5,460 /㎣ (neutrophil 64.5%, lymphocyte 21.7%, monocyte 4.1%, eosinophil 5.4%), reticulocyte 0.7%, Platelet 52,000 /㎣, total protein 6.51 g/dL, albumin 3.80 g/dL, alkaline pohsphatase 161 IU/L, AST 110.7 IU/L, ALT 64.9 IU/L, total bilirubin 0.44 ㎎/dL, BUN 18.4 ㎎/dL, creatinine 0.79 ㎎/dL. Peripheral blood smear showed normocytic normochromic anemia, thrombocytopenia. Bone marrow aspiration smear showed normoplastic myeloid and erythroid precursor. The bone marrow biopsy section shows normocellular marrow (35%) for his age and mildly increasing myeloid cell lineage. We have experienced a case of idiopathic thrombocytopenic purpura in a patient being in neurofibromatosis and therefore reporting it with documentary records. 저자들은 신경섬유종증 환자에서 특별한 원인을 발견할 수 없었음에도 특발성 혈소판 감소증이 발생한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

심한 척추후측만증 환자의 대퇴골절 복원술을 위한 부위마취 : 증례보고 A case report

김지은,박대용,유시현,강규식,권진형,김천숙,안기량 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Kyphoscoliosis is a disease manifested as lateral curvature of spine and accompanying rotation of the vertebrae, resulting in distortion of rib cage. Restrictive lung disease and pulmonary hypertension progressing to cor pulmonale are the major cause of mortality in patients with kyphoscoliosis. We had experienced a successful spinal and caudal epidural anesthesia for the open reduction and internal fixation with plate of fractured femur shaft in two patients with severe kyphosoliosis. We had chosen regional anesthesia as an anesthetic method because of there poor pulmonary function and severe deformities of thoracolumbar spine. We could achieve the adequate anesthetic sensory dermatome level, T_(5) and T_(8), for operation without any significant deterioration of blood pressure and respiration. We recommended that regional anesthesia is a useful anesthetic method for a patients with severe kyphoscoliosis when the operation on hip or lower extremity is required.

安東을 中心한 慶北地域의 夏節期 氣溫特性(Ⅰ)

손련규,윤지홍,권성덕,김순철,권태형 安東大學校 安東地域社會開發硏究所 1991 安東開發硏究 Vol.2 No.1

The Andong region that includes Youngju, Bonghwa, Yechon, and Uisung is located in a basin bounded in the northeast and northwest by the Mt. Ranges of Taeback and Soback, and because of the closeness to Andong and Imha dams it has come to experience a large variation in climate. Due to an excessive amount of evaporation of moistures from open surfaces of these dams in the region it has not been possible to avoid heavy fogs, and because of the cooling effect accompanying the evaporation it has come to experience greater variation in temperature. The summer climate of the region may be characterized as follows : 1) The temperatures fall in the eastern coastal region that includes Uljin, Youngduk, and Pohang during the summer when there is a low pressure developed m the southern part of Tonghae following the pattern of high pressure in the north and low pressure in the south induced by the northeastern air current, but the temperatures fall frequently in the interior region that includes Andong, Yougju, Bonghwa, Yechon, Uisung, Sunsan, Kimchon, and Taegu when there is a low pressure region developed there following the pattern of high pressure in the east and low pressure in the west. 2) The temperatures fall equally in both the coastal and interior regions when there is a cold front, spread across east-west line, moving rapidly southward from central region due to a high pressure in the north and a low pressure in the south, and in the interior region the temperatures fall quite rapidly-this trend continues for the next two to three days. 3) The highest temperature during the summer in Kyungbuk region is due to wind effect that may have been resulted from the Foehn-phenomena with the Taeback Mt. Range as boundry. 4) The temperature rises when daily variation is of the pattern of A or B, but the temperature falls when the daily variation is of the pattern C or D. The temperatures fall in the western coast and rise in the interior region when the high pressure region forms a tounge pattern with the axis along the eastern coast. When the axis of the high pressure region is along the western coast, the temperatures rise in both regions, and the amount of rise is comparable, thus creating the pattern E. These five patterns of variation may be considered as the characteristics of the summer weather in the Kyungbuk region.

噴霧法에 依한 硫化亞鉛 薄膜의 電場發光 調査

손연규,윤지홍,권태향,한광수,이자현 안동대학교 기초과학연구소 1991 基礎科學 硏究論文集 Vol.2 No.1

The study of Electroluminescence has been begun with that the two Germans, B. Gudden & R. W. Pohl in 1920 examined the remaining lights by dint of adding Electric Field at the fluorescent substance, and from 1952 the study became brisk, in 1960 made a peak, and afterward it was diminished. The above facts were appeared through H. E. Ivey`s investigation. The cause was it that the light-efficiency and the brightness were very pessimistic, though the beginning of EL-Study was given in the development of illumination. In 1950, however, with the initiative that C. W. Jerome of Sylvania Co. deviced and announced EL-Lamp, EL-Fluorescent substances were embed and merchandised as EL-Panels, and after a while it was applied to EL-Lamps, Expression Apparatuses, Light Amplifier, Logic Circuit and so on, with which the use frequency got high, and it has been developed as a promising Electronic Industry. But in our country, considering the various conditions, in order to find out the possibility of EL-Production within the home country, Impurity was introduced to ZnS powder, EL of ZnS : Cu, Cl & ZnS : Cu, Mn, Cl could be manufactured, and surveying the Voltage Characteristics, the Frequency Characteristics, and the Spectral Response of the manufactured things, the fundamental technique-problems about the composition of ZnS powder, the introduction of impurity, the formation of thin-thickness, and the construction of Cell, etc were solved gradually. 1. The quantity of Cu must commonly be more one order than in the use of Photoluminescence, as a whole 10(-3)gm,atm/mole ZnS is fitted, and Mn suitable in about 10 times of Cu. 2. Yellow color must dope Cu as well as Mn, when the quantity of Cu fixed to a certain amount, in case that the quantity of Mn is decreased, it be turned into Yellow color, if it is increased, it be taken Orange color. 3. In vacuum flowing HzS gas and baking at the moment, it is said that EL of which brightness is high, but in the air we can secure ZnS : Cu, Cl EL. only. 4. In referring to the conditions 1, 2, 3, I can infer that EL-manufacture if possible in our country.

법랑아세포종에서의 p53 및 MIB-1 발현 : 임상 및 병리학적 요인들간의 연관성 Correlation Between Clincopathologic Parameters

이수운,한지용,권창석,윤혜경,김우형,이희철 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4

Thirty five patinets' paraffin embedded biops block , which was previously diagnosed ameloblastoma and obtained from oral and maxillofacial surgery dept. of pusan paik hospital and OMS dept of collage dentistry, pusan national university hospital, from January 1994 to march 1999, were performed immunohistochemistry with p-53 and MIB-1. On investigating the expression, correlation between clinical and histologic factor and correlation between prognosis and moleculopathologic property were examined. And we obtained the following results; 1. Age over forty, recurrence rate was 58.5%. 91.4% of the tumor was developed on mandibule, recurrence rate of maxilla area tumor was 66.7% On radiologic and histologic feature, multilocular and follicular type has high recurrence rate but no significance statistical difference was found 2. Expression of p-53 was 25.7%, When underage of forty. location on mandibule, multilocular and plexiform type, the expression of p-53 was somewhat higher and recurred cases of tumor, expression rate was 12.5%. 3. MIB-1 expression rate was 77.1%. When location on mandibule, unilocular, plexiform type tumor and previously recurred case, MIB-1 expression was 87.5% which was somewhat higher than no recurrence case of 74.1%. 4. 33.3.% of positive on MIB-1 have expression of p-53 and all p-53 positive case express MIB-1 positive. All p-53 positive case have high cell proliferation rate. From this result, age and location have closely related with the prognosis of tumor, histologic feature and MIB-1 expression has related with the prognosis of tumor. But p-53 has highly expressed on cell proliferation area, not closely related with the prognosis of tumor.

정신분열병의 임상적 고위험군의 특징 : '서울청년클리닉'의 자연 추적 관찰 예비연구

유소영,이경진,강도형,이승재,하태현,위휘,이애라,송지연,김성년,권준수 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.1

Objectives : The aims of this study were to identify the intake and following process for subjects at high risk of transition to schizophrenia and to examine the neurocognitive, social, and emotional functions of the subjects compared with healthy controls. Methods : Symptomatic individuals judged at high risk for schizophrenia ('clinical high risk') within Youth Clinic were assessed and followed up. They performed a neurocognitive function test, a social function test and an affective function test. Twenty healthy controls were recruited in this study. Results : Among eighty-two subjects contacted through the Youth clinic, sixteen subjects were judged as the clinical high risk group. Fourteen subjects among the clinical high risk group showed deficits in several domains of neurocognitive functions, such as visual recall memory, verbal short term memory and executive function. Social and affective functions are also impaired in the Cli-nical high risk group compared with healthy controls. Two of 15 subjects (13%) developed a psychotic disorder within 6 months. Conclusion : This study illustrates the state of follow-up study for a clinical high risk group. Despite low numbers and short durations, some impairment of several functions in the clinical high risk group suggests possible predictors of psychosis.