복시환자의 임상양상

김민석,최진,김정훈,김재석,이주화,Min Seok Kim,Jin Choi,Jung Hoon Kim,Jae Suk Kim,Joo Hwa Lee 대한안과학회 2013 대한안과학회지 Vol.54 No.11

Purpose: To evaluate the clinical features, causes and outcomes of patients with diplopia. Methods: All patients presenting with diplopia from October 2010 to March 2012 and followed up for more than 3 months were retrospectively investigated. Results: During the study period, 59 patients with diplopia were identified. There were 42 males and 17 females with an average age of 50 years. Binocular diplopia accounted for 54 cases (92%) and 5 cases (8%) had monocular diplopia. Cranial nerve palsies were the most common cause of binocular diplopia (28 cases, 52%). Within the cranial nerve palsies group, 14 cases (50%) were accompanied by hypertension or diabetes mellitus. Binocular diplopia spontaneously resolved in 35 cases (65%) by 3 months rising to 41 cases (76%) by 7 months. Thirteen (93%) out of 14 cases of cranial nerve palsies with hypertension or diabetes resolved spontaneously by 3 months. Conclusions: Binocular diplopia was caused most commonly by cranial nerve palsy and resolved after 3 months in 65% of patients. A spontaneous recovery from diplopia was observed after 3 months in 93% of patients with cranial nerve palsies and microvascular disease such as hypertension or diabetes. Therefore, the initial observation without additional treatment would be sufficient in these patients. J Korean Ophthalmol Soc 2013;54(11):1772-1777

열처리 및 단조조건에 따른 알루미늄 6056 소재의 특성변화 및 자동차의 피스톤 블록 설계

김민석,정병덕,박효영,최정묵,김정민,박준식,Kim, Min Seok,Jung, Hyung Duck,Park, Hyo young,Choi, Jeong Mook,Kim, Jeong Min,Park, Joon Sik 한국재료학회 2015 한국재료학회지 Vol.25 No.10

The mechanical properties and microstructures of Aluminum 6056 alloys were investigated for their use in the fabrication of a piton block. The EN-AW6056 alloys exhibited a tensile strength of 375 MPa for a solution treatment temperature of $550^{\circ}C$ for 2 h followed by an aging treatment at $190^{\circ}C$ for 4 h. The microstructures of the heat treated specimen showed that the $Mg_2Si$ phase with a size of 3~5 um was dispersed throughout the aluminum matrix when the heat treatment was done. Moreover, in order to identify the forgeability of the specimen, upsetting tests were done. For up to 80 % of the upsetting ratio, the specimen maintained its original shape, and at above 80 % of the upsetting ratio, the specimen underwent crack development. The specimen was successfully forged without any defects with the examined material conditions. The material conditions together with the forging conditions are discussed in terms of the microstructures and mechanical properties.

당뇨망막병증에서 나비라스 레이저 시스템과 기존 범망막광응고술의 소요시간과 통증 비교

김민석,이성우,김재석,Min Seok Kim,Seong Woo Lee,Jae Suk Kim 대한안과학회 2014 대한안과학회지 Vol.55 No.8

Purpose: To compare the pain scale and time necessary for panretinal photocoagulation (PRP) between Navilas<sup><font size=`2`>Ⓡ</font> (OD-OS, Teltow, Germany) and conventional laser in diabetic retinopathy. Methods: Fifteen patients who required PRP for diabetic retinopathy were enrolled in the present study. PRP was performed using Navilas<sup><font size=`2`>Ⓡ</font> (5 x 5 array patterned system) in the superior, nasal and inferior areas, and using conventional laser at the temporal area 1 week later. Total time of laser application and number of laser shots were counted for calculating required time per 100 spots of each laser system. Immediately after the laser photocoagulation, patients were asked to quantify their pain on a visual analog pain scale (0 = no pain; 10 = worst pain). Results: PRP using Navilas<sup><font size=`2`>Ⓡ</font> required shorter time per 100 laser spots (27.7 sec vs. 102.0 sec, <em>p</em> < 0.001) and subjects had lower treatment-related pain than with the conventional laser system (3.3 vs. 6.9,<em> p</em> < 0.001). Conclusions: PRP using Navilas<sup><font size=`2`>Ⓡ</font> can be considered as an efficient method for improving patient and operator's comfort with faster laser application and lower treatment-related pain. J Korean Ophthalmol Soc 2014;55(8):1150-1154

소유역에서의 토사유출 산정을 위한 GeoWEPP model과 USLE의 비교.적용 연구 - 이천시 단월동 유역을 사례로

김민석,김진관,양동윤,Kim, Min-Seok,Kim, Jin-Kwan,Yang, Dong-Yoon 대한자원환경지질학회 2007 자원환경지질 Vol.40 No.1

GIS와 연계시켜 만든 분산형 모델의 대표적인 경험식인 USLE model과 물리학기반의 GeoWEPP model을 경기도 이천시에 위치한 소유역에 적용하여 2004년 1월에서 2005년 1월까지 1년간의 토사유출량을 비교하였다. 연구기간동안의 유출된 토사량은 실제관측결과 270.54 ton, USLE 모델 적용 시 358.1 ton, 그리고 GeoWEPP 모델 적용 시 283.30 ton으로 각각 산출되었다. 각각의 모델을 적용한 산출량은 실제 산출량보다 과대하게 산출되었으며, 산출결과만을 볼 때, GeoWEPP 모델을 적용한 토사유출량이 USLE 적용 산출량 보다 관측량에 더 근사한 산출량을 보였다. 모델 적용 산출량이 과대산출 된 원인으로는 실험웨어를 월류하여 빠져나간 부유물에 대한 양이 포함되지 않았기 때문으로 판단된다. The empirical USLE and the physically-based GeoWEPP which were distributed model linked with GIS (Geographical Information System) were applied to small natural catchment located in Icheon-si, Gyeonggi-do, South Korea. The results using by two models were total sediment yield from study catchment between January, 2004 and January, 2005. During the study period, the observed total sediment yield was 270.54 ton and the total sediment yield computed by USLE and GeoWEPP model were 358.1 ton and 283.30 ton, respectively. Each of results computed by USLE and GeoWEPP overestimated more than the observed total sediment yield, but, based on the results, the total sediment yield computed by GeoWEPP approximated to the observed result. We suggest that the reason why the total sediment yield using by models overestimated was that computed amounts by two models did not contain the amount of suspended sediment flowed over the weir.

유완소(劉完素)의 중풍론(中風論)에 관(關)한 고찰(考察)

김민석,정승현,신길조,이원철,Kim, Min-Seok,Jung, Seung-Hyun,Shin, Gil-Cho,Lee, Won-Chul 대한한방내과학회 1997 大韓韓方內科學會誌 Vol.18 No.1

In this study, the purpose was to consider the conception, the causes, the pathology, the treatment and the prescription of 'Zhong Feng(中風)' through Liu Wan-Su's works. The results are obtained as fallows. First, Liu Wan-Su regarded Zhong Feng(中風) as 'Feng Re(風熱)'. He thought the causes and the pathology of Zhong Feng(中風) that pathologically fever was due to excess of feelings and 'Heart-fire(心火)', was due to intemperate living, so he thought the leading causes of Zhong Feng(中風) were Feng Re(風熱) and Heart-fire(心火) and emphasized the internal causes of Zhong Feng(中風). But he excluded absolutely external causes. He also insisted that Feng Re(風熱) was cause in a fat and a thin person. Second, according to symptom of the limbs and 'Jiu Qiao(九竅)', he classified Zhong Feng(中風) into 'Zhong Fu(中腑)' and 'Zhong Zang(中臟)'. And in the treatment of Zhong Feng(中風), the three principle was set up that 'Sweating .method(發表法)' in the case of Zhong Fu(中腑), 'Passing method(通滯法)' in Zhong Zang(中臟) and 'Nutrient method(養筋法)', in case that both symptom would not revealed. And in the prescription of Zhong Feng(中風), he presented 'Xumingtang(續命湯)', 'Sanhuatang(三化湯)' and 'Daqinfantang(大秦?湯)' to them each.

집중호우의 시·공간적 특성과 유역특성을 고려한 강우분석 연구

김민석,최지혁,문영일,Kim, Min-Seok,Choi, Ji-Hyeok,Moon, Young-Il 한국수자원학회 2018 한국수자원학회논문집 Vol.51 No.8

최근 집중호우의 발생빈도가 증가하고 있으며, 이를 고려한 강우분석을 실시하여야 한다. 현재 수문설계를 위한 강우분석은 한반도 조밀도 36 km인 기상청 관할 종관기상관측지점(Automated Surface Observing System, ASOS)의 시 단위 강우를 이용하고 있다. 이로 인해 같은 강우지점의 티센망에 포함되는 중소규모 유역은 동일한 확률강우량과 강우시간분포로 분석하게 됨으로 유역특성을 고려하지 못하는 문제가 발생한다. 또한, 10~20 km 범위 내에서 발생하는 집중호우의 시 공간적 변화를 고려하지 못하는 문제점이 발생한다. 따라서 본 연구에서는 종관기상관측지점에 비해 상대적으로 조밀도가 우수한 방재기상관측지점(Automatic Weather System, AWS)의 분 단위 강우자료를 이용하여 집중호우를 고려한 확률강우량을 산정하였다. 또한, 유역에 적합한 Huff의 4분위 방법 산정을 위해 Case별 시간분포 산정과 유출분석을 실시하였다. 이는 집중호우와 유역특성을 반영한 설계수문량 산정에 크게 기여할 것으로 판단된다. Recently, the incidence of heavy rainfall is increasing. Therefore, a rainfall analysis should be performed considering increasing frequency. The current rainfall analysis for hydrologic design use the hourly rainfall data of ASOS with a density of 36 km on the Korean Peninsula. Therefore, medium and small scale watershed included Thiessen network at the same rainfall point are analyzed with the same design rainfall and time distribution. This causes problem that the watershed characteristics can not be considered. In addition, there is a problem that the temporal-spatial change of the heavy rainfall occurring in the range of 10~20 km can not be considered. In this study, Author estimated design rainfall considering heavy rainfall using minutely rainfall data of AWS, which are relatively dense than ASOS. Also, author analyzed the time distribution and runoff of each case to estimate the huff's method suitable for the watershed. The research result will contribute to the estimation of the design hydrologic data considering the heavy rainfall and watershed characteristics.

BTMSM/$O_2$ 고유량으로 증착된 low-k SiOCH 박막의 전기적인 특성

김민석,황창수,김홍배,Kim, Min-Seok,Hwang, Chang-Su,Kim, Hong-Bae 한국반도체디스플레이기술학회 2008 반도체디스플레이기술학회지 Vol.7 No.1

We studied the electrical characteristics of low-k SiOCR interlayer dielectric(ILD) films fabricated by plasma enhanced chemical vapor deposition (PECVD). The precursor bis-trimethylsilylmethane (BTMSM) was introduced into the reaction chamber with the various flow rates. The absorption intensities of Si-O-$CH_x$, bonding group and Si-$CH_x$, bonding group changed synchronously for the variation of precursor flow rate, but the intensity of Si-O-Si(C) responded asynchronously with the $CH_x$, combined bonds. The SiOCH films revealed ultra low dielectric constant around 2.1(1) and reduced further below 2.0 by heat treatments.

초소형 프로젝터를 위한 디지털 LCOS 마이크로 디스플레이의 계조 연구

김민석,강정원,Kim, Min-Seok,Kang, Jung-Won 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.2

A new SRAM pixel circuit with RESET Transistor of a LCOS display module was designed for a pico-projector application. A dual-block PWM method was also proposed to realize the field sequential color system having only one LCOS panel. 0.29 inch LCOS panel in SVGA resolution was fabricated and the proposed dual-block PWM method was tested with it. Discontinuity of brightness curve was caused due to multi-pulses and it was improved by the adoption of proper mapping table. With the proposed SRAM with RESET pixel circuit and dual-block PWM method, the test images were successfully demonstrated.

회분식 공정의 생산계획 문제의 객체지향형 프로그래밍에 의한 표현

김민석,이인범 ( Min Seok Kim,In Beum Lee ) 한국화학공학회 1995 화학공학의이론과응용 Vol.1 No.2

Functional Independence Measure를 이용한 뇌졸중(腦卒中) 환자의 임상적 관찰

김민석,정승현,신길조,이원철,Kim, Min-Seok,Jung, Seung-Hyun,Shin, Gil-Cho,Lee, Won-Chul 대한한방내과학회 1998 大韓韓方內科學會誌 Vol.19 No.1

BACKGROUND The purpose of this study was to investigate disability of the patients after stroke, clinical applicability and usefulness of the FIM in evaluating the functional abilities and to assess the characteristics of the patients after stroke. And this study examined difference by predictive factors on the treatment outcome. METHOD The study was composed of 31 stroke patients who were within 1 week after stroke and had been treated in hospital more than 4 weeks. Improving rate was measured by using the Functional Independence Measure(FIM), and the correlation was analyzed between Motor FIM and Cognitive FIM. We analyzed significant meaning statistically in the mean value of FIM. RESULT 1. There was no significant meaning statistically in the mean value of FIM that was between both at admission and after 2 weeks. But there was proportional correlation between both at admission and after 4 weeks, and significant meaning statistically. 2. There was proportional correlation between both FIM and Motor FIM, and significant meaning statistically. But there was no significant meaning statistically between both FIM and Cognitive FIM. 3. There was no significant meaning statistically between both FIM and sex, age, side of weakness, stroke subtype, hypertension, hypercholesterolemia, diabetes mellitus, heart disease, starting point of rehabilitation therapy and past history of cerebral vascular accident. While dysarthria affected functional recovery in stroke patients, and significant meaning statistically. CONCLUSION 1. FIM appeared to be a valid and reliable method to measure the functional abilities of the patients after stroke. 2. Only one thing between Motor FIM and score didn't influence FIM score. 3. Dysarthria affected functional recovery in stroke patients, and it is the statistically significant factor.