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뇌하수체선종에 대한 미세현미경 경접형동 수술과 내시경 경접형동 수술의 비교
김영훈(Young-Hoon Kim),김용휘(Yong Hwy Kim),주진덕(Jin-Deok Joo),한정호(Jung Ho Han),김재용(Chae-Yong Kim) 대한두개저학회 2015 대한두개저학회지 Vol.10 No.1
The recent advancement in the endoscopic skullbase surgery has made a paradigm shift on the surgical treatment for pituitary tumors. The endoscopic endonasal transsphenoidal approach (EETSA) has rapidly replaced the microscope-based transsphenoidal approach (MTSA). However, there is a still a debate on whether the EETSA is superior to the MTSA for pituitary adenomas or not. The use of the endoscope to visualize the sella via a direct endonasal approach offers the surgeons dramatically better visualization as well as improved range of motion compared to the operating microscope. On the other hand, the endonasal and bleeding complications are significantly higher in the EETSA compared with the MTSA. In Particular, patient discomfort, smell, and taste impairment are higher with the endoscopic method compared with microscopic ones. This paper will review on the basis of the data available in literature the pros and cons of the two methods, EETSA and MTSA.
말라리아의 신속진단 : 임상양상 및 혈액도말검사와 항원검사의 비교
김병철,김태형,박노진 순천향대학교 순천향의학연구소 2009 Journal of Soonchunhyang Medical Science Vol.15 No.2
Background : Malarial infestation intermediated by Anopheles mosquito is one of the most prevalent parasitic diseases over the world and many people are infected by malarial plasmodium each year. The rapid diagnosis is needed to properly treat the malaria because plasmodium falciparum has a high mortality rate. Currently, we usually use a microscopic examination of blood smears for diagnosis of malaria and it has a high sensitivity and specificity. However, the result might depend on physician in change and this method needs much time for diagnosis of malaria. Methods : We evaluated 206 patients who were suspicious of malaria. We perforemed a microscopic examination of blood smears and antigen detection test. We investigated clinical symtoms such as fever pattern, thrombocytopenia, anemia and diagnosised as malaria who was positive in blood smears. After this we tried to follow up the patients. Results : As a result of a microscopic examination of blood smears and antigen detection test for 206 patients who were suspicious of malaria, 15 was diagnosed with malaria infestation and all of them showed a positive response to malarial antigen test . There were six patients who showed a positive reaction to antigen test, but negative results in blood smears. Malarial patients showed anemia, leukopenia or thrombocytopenia and revealed the symtom of splenomegaly, headache and abdominal pain. Conclusions : Malarial antigen test has a good relationship with a microscopic examination of blood smears and a high sensitivity and specificity. Because the result could be false positive or false negative, it might be helpful to perform antibody test together.
미시적 교통류 시뮬레이션을 활용한 교통영향평가 분석기법 개선방안
신대섭,이선하,Shin,Dae-Sup,Lee,Seon-Ha 한국방재학회 2008 한국방재학회논문집 Vol.8 No.1
기존의 교통영향평가 지침으로 규정된 사업 시행 전후의 교통흐름은 가로구간의 경우 교통량, V/C, 평균통행속도와 서비스수준, 교차로의 경우 서비스 수준 등의 교통류 분석지표에 의하여 분석되고 있다. 이러한 교통류 분석지표는 확률론적(stochastic)인 교통류의 특성을 효율적으로 번영하지 못하며, 특히 개별 가로구간과 교차로에 국한하여 분석됨으로서 사업 시행으로 인한 교통영향 분석 범위 전체 구간의 교통흐름을 종합적으로 분석하기에는 미흡하다. 본 연구는 차량추종모형(Car-Following Theory)에 의한 미시적 시뮬레이션(microscopic-simulation) 기법을 적용하여, 개별 구간과 교차로 분석 범위를 넘어서 사업 대상 교통영향 반경 내의 교통흐름을 가시적(visual)하게 보여줄 수 있는 방안과 이를 바탕으로 공간적 범위 설정 개선방안, 개선대책 수립에 따른 효과분석 방안 등 다양한 분석결과를 도출하였다. Traffic flow which is prescribed under previous traffic effect/access act is analyzed by traffic volume, V/C, mean speed on road and LOS on the intersection. These indexes based on analytical method can not consider stochastic characteristics of traffic flow. Moreover it is hard to analyze traffic flow visually in whole traffic effect area because only individual road and intersections are targeted. In this study, it is devised to show traffic flow analysis method within traffic effect area visually applying microscopic-simulation by car-following theory, and then based on this, effect analyze ways are studied according to space range plan, improvement measure establishment and etc. To execute this study, effect area is set up using V/C, and the change of traffic current around development area is analyzed using microscopic-simulation program.
( Jae Won Ha ),( So Eun Park ),( Jin Yong Lee ),( Chul Woo Kim ),( Sang Seok Kim ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Scabies is caused by a mite, Sarcoptes scabiei var hominis, an obligate human parasite that burrows tunnels downwards into the epidermis. Scabies may be transmitted from objects, but is most often transmitted by direct skin-to-skin contact, with a higher risk with prolonged contact. Treatment must involve the entire household or community to prevent reinfection. In Korea, the incidence of scabies has decreased dramatically since the late 1980s, but recent outbreaks in nursing homes or hospitals have been raising public health concerns. Herein we describe five cases of scabies occurred in 3 generations of a family, which were confirmed dermoscopically and microscopically. We also used dermoscopy-oriented skin scraping with microscopic examination in evaluating the efficacy of scabies treatment and could treat the collective infestations in a family rapidly and effectively.
Experimental Study on Condensation Heat Transfer and Flow Modes of R245fa on Enhanced Surface Tubes
Daisuke Jige,Tomonobu Matsuno,NORIHIRO INOUE 대한설비공학회 2015 International Journal Of Air-Conditioning and Refr Vol.23 No.2
The present study experimentally investigated the condensation heat transfer characteristics and condensate flow mode of R245fa on horizontal low-finned and microscopic-grooved tubes. Five low-finned tubes and a microscopic-grooved tube with tube diameters at the fin tip of approximately 19 mm were used. Experiments were conducted at a saturation temperature of 40°C. The fundamental heat transfer characteristics of the low-finned and microscopic-grooved tubes were experimentally investigated to clarify the flow modes of the condensate and the efficacy of the enhanced heat transfer.
Minamitani, Haruyuki,Ehara, Hiroyuki,Sekizuka, Eiichi,Oshio, Chikara 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1
An optical-fiber-array spatial filtering velocimeter (SFV) was developed and applied to the flow velocity measurement in the microscopic region. A frequency shifter was assembled in the signal processing unit of the velocimeter, and it enabled detection of the direction of flow which often changed reversely. The structure of the SFV was very simple and was available to be installed in a microscope. Output signals of the SFV were detected by photodetectors and processed by means of FFT to obtain the spectral frequency related to the flow velocity. The whole system was tested both in vitro and in-vivo, and especially used to measure the velocity changes of lymph flow and blood flow in the microcirculatory system of the rats. The results showed that the developed SFV was conspicuously useful for the velocity measurement even in the microscopic region.
채휘균(Chae Hwei kyun) 한국교육철학회 2014 교육철학 Vol.52 No.-
This research analyzes the contents of the Chosen Dynasty that means the National Examination's Papers were examined. This study utilized the method of the old documents was carried out in terms of the microscopic. The results are as follows. First, Examination papers recorded individual's identity, name, age, residence. And father and grandfather, great - grandfather, mother's father was recorded with identity and name. This is the identity and residence of people who can control, and further information is collected by the country a person's life can be controlled. Second, the test questions are laws in the country, and a range of test problems are reflected in the dominant ideology and Confucian culture. Third, examination paper has a variety of characters and symbols for marking is indicated. These symbols and characters to the rating and ranking of individuals can be classified as differentiated.
직물 복합재료의 드레이핑 미소 거동 관찰: 일방향 편향 인장실험과 이축 인장실험
장승환 ( Jang Seung Hwan ) 한국복합재료학회 2004 Composites research Vol.17 No.1
본 논문의 목적은 탄소섬유 건직물의 토우 구조의 미소 거동과 변형 중의 평면 하중과의 관계를 규명하는 것이다. 평면 하중은 변형 중에 토우들을 재배치하며, 결국에는 잠김 현상을 유발하게 된다. 본 논문에서는 토우 간격, 주름각 등의 미소 변형 변수들을 관찰하기 위해 일방향 편향 인장실험과 이축 인장실험을 겪은 시편들을 전단각에 따라 분류하여 현미경을 이용하여 변형 경향을 관찰하였다. 전단각에 따른 변형된 토우 구조의 변화를 간단한 설계 변수 모델을 이용하여 근사하였다. This paper aims to correlate the micro-mechanical behaviour of tow geometry with applied in-plane forces during deformation of dry woven carbon-fibre fabric. These in-plane forces lead to differences in tow reorganisation during deformation and so changes in the way in which `lock-up` occurs. In this paper, deformation of micro-mechanical parameters such as tow interval, crimp angle, change in tow amplitude and wavelength are investigated. To observe the micro-deformation of the fabric structure, appropriate specimens from bias extension and biaxial tests are sectioned and observed under the microscope. It was found that different loading conditions cause geometric deferences in the tow architecture. The variation in deformed tow geometry with shear angle is fitted using a simple parametric model.