Ammonia Volatilization in Shihwa Wetland Soils

Sang-Mo Lee,Pan-Gun Kim,Hee-Myong Ro 한국토양비료학회 2007 한국토양비료학회지 Vol.40 No.1

Ammonia Volatilization in Shihwa Wetland Soils

Lee, Sang-Mo,Kim, Pan-Gun,Ro, Hee-Myong Korean Society of Soil Science and Fertilizer 2007 한국토양비료학회지 Vol.40 No.1

혈중 암모니아의 측정조건과 분석기기의 평가

김상수 ( Sang Su Kim ),김명수 ( Myong Soo Kim ),이승모 ( Seung Mo Lee ),박창은 ( Chang Eun Park ) 대한임상검사과학회 2016 대한임상검사과학회지(KJCLS) Vol.48 No.2

암모니아는 매우 독성이 있으며, 흥분 독성, 산화 스트레스, 염증을 통해 신경 세포의 손상을 유발한다. 간이 암모니아 대사를 위한 일차 기관이라는 사실에 근거하여 선천성 대사 오류의 원인이 된다. 혈중 암모니아 판정은 측정값의 일부 범위에서 결정하게 되는데 최근 진단분야에서 혈중 암모니아를 가능한 동시다발적으로 측정하게 되었다. 그러나 혈액검체의 수집, 처리, 저장 및 분석은 오류의 모든 잠재적인 요인이다. 신속하고 신뢰할 수 있는 혈중 암모니아 측정의 평가를 위해 DRI-CHEM 100 (Fuji Film Co., Japan) 및 COBAS 8000 (Roche Diagnostic Ltd., Switzerland) 분석기를 이용해 비교평가 분석하였고 높은 상관성을 얻었으며 one-step 방법은 암모니아 분석에 적합하였다. 암모니아의 채혈 후 시간대별 측정에서는 30, 90, 180분에 각각 46.5, 57.4, 79.0 (μg/dL)로 상승하는 경향을 보였다. 또한 암모니아의 용량별 측정에서는 7, 10, 13(μL)에 각각 39, 46, 43 (μg/dL)으로 나타났으며 10 μL에서 유의성을 보였다( p<0.001). 결론적으로 위 평가 분석은 임상적용에서 유용한 정보를 제공 할 수 있을 것이다. Ammonia is very toxic, and causes neuronal damage via excitotoxicity, oxidative stress, and inflammation. Because the liver is the primary organ for ammonia metabolism, compromised liver function can result from inborn errors of metabolism. Measurement of blood ammonia has some limitations. Recently, several laboratories examined possible concurrent increases in plasma ammonia. However, the collection, handling, storage, and analysis of blood samples are all potential sources of error. For evaluation of rapidity and reliability of measurement of blood ammonia, the DRI-CHEM 100 (Fuji Film Co., Japan) and COBAS 8000 (Roche Diagnostic Ltd., Switzerland) analyzer were used for analysis of ammonia level values. The results of this study detected a high correlation between analyzer. Therefore, one-step measurement was suitable for ammonia analysis. After sampling of the ammonia in the time slot for measurement an increase to 46.5, 57.4, and 79.0 (꺷g/dL) was observed at 30, 90, and 180 minutes. In addition, specific capacity of the ammonia, 7, 10, and 13 (꺷L), was measured as 39, 46, and 43 (꺷g/dL), respectively, and the FDC-100 analyzer was more effective in 10 꺷L ( p<0.001). In conclusion, the evaluated analysis may offer useful information for clinical application.

3차 산업이 서울시 인구증가에 미치는 영향에 관한 연구

황명찬(Myong Chan Hwang),김영모(Young Mo Kim),이성복(Sung Bok Lee) 한국지역학회 1991 지역연구 Vol.7 No.2

The objective of this study is to describe and analyze the impact with service sector employment for population growth in Seoul during the three decades. During the past three decades, Korea has experienced not only a high rate of economic growth but also unprecedented urban growth both in absolute and in relative terms. The pattern of urbanization that emerged in Korea has two features: high concentration of population in Seoul and regional imbalance in the distribution of urban population and economic activity. During the 1970s and 1980s, the Korean government experimented with programs for restricting the flow of migrants to the capital and redirecting people and edcational, industrial, and commercial activities to secondary urban centers. In spite of several regulation policies, population growth in Seoul is still high. The primate city population had already reached more than tenth million in 1990. This study indicates that the most important variable of population growth in seoul is influenced by service sector employment. In other words, the service sector employment has been contributed absolately to population growth in Seoul. Therefore, the reduction of population concentration in Seoul should be considerred the regulation of construction in office building.

다중경로 환경에서 실시간 위치추적 시스템의 위치 오차 분석

명승일(Myong, Seung-Il),모상현(Mo, Sang-Hyun),이형섭(Lee, Heyung-Sub),박형래(Park, Hyung-Rae),서동선(Seo, Dong-Sun) 한국전기전자학회 2010 전기전자학회논문지 Vol.14 No.1

본 논문에서는 다중경로 환경 하에서 ISO/IEC 24730-2 국제표준에 기반한 실시간 위치추적 시스템(Real-time Locating Systems, RTLS)의 위치 정확도를 분석한다. RTLS 수신기는 송신 데이터 검출을 위한 복조 기능뿐만 아니라 수신 신호로부터 도착시간 정보를 얻을 수 있어야 한다. 일반적으로, 다중경로 환경에서 수신 신호는 직접 경로와 간접 경로를 통해 왜곡된 형태를 갖게 된다. 이러한 다중경로 성분들은 첫 번째 도착 신호의 수신시간을 결정하는데 매우 중요한 역할을 한다. 다중경로 환경하에서 RTLS의 위치 오차를 분석하기 위해 노이즈 잡음은 고려하지 않고 두 개의 다중경로가 존재하는 환경을 고려하기로 한다. 모의실험 및 실제 실험 결과에 의하면, 두 경로 성분 간 지연 시간차가 1.125 Tc 이상에서는 위치 오차가 발생하지 않으나 0.5 Tc 이내에서는 2.4m 정도의 위치 오차가 생기게 된다. 또한 지연 시간차가 1Tc 보다 작은 경우 두 경로 성분의 분해능은 상대적인 위상 차이에 따라 크게 영향을 받음을 확인할 수 있다. In this paper, we analyze the location accuracy of real-time locating systems (RTLS) in multipath environments, where the RTLS complies with an ISO/IEC 24730-2 international standard. RTLS readers should have an ability not only to recover the transmitted signal but also provide arrival timing information from the received signal. In the multipath environments, in general, the transmitted signal goes through both direct and indirect paths, and then it becomes some distorted form of the transmitted signal. Such multipath components have a critical effect on deciding the first arrival timing of the received signal. To analyze the location error of the RTLS in the multipath environments, we assume two multipath components without considering an additive white Gaussian noise. Through the simulation and real test results, we confirm that the location error does not occur when the time difference between two paths is more than 1.125Tc, but the location error of about 2.4m happens in case of less than 0.5Tc. In particular, we see that the resolvability of two different paths depends largely on the phase difference for the time difference of less than 1Tc.

Poster Session 3 : Eukaryotic gene structure and expression ; A control mechanism in cellular gene expression by Let encoded from HIV Long terminal repeats

( Heung Mo Yang ),( Myong Sook Yoo ),( Sang Won Park ),( Sang Yun Choi ) 생화학분자생물학회 2001 생화학분자생물학회 춘계학술발표논문집 Vol.2001 No.-

중질소 추적자법을 이용한 Condensed Molasses Solubles(CMS) 함유 NH<SUB>4</SUB><SUP>+</SUP>의 토양 중 행동 연구

이상모(Sang-Mo Lee),최우정(Woo-Jung Choi),윤석인(Seok-In Yun),최영대(Young-Dae Choi),노희명(Hee-Myong Ro),박지원(Jee-Won Park) 한국토양비료학회 2002 한국토양비료학회지 Vol.35 No.2

무심기공 도인법이 요통치료에 미치는 효과

장상철(Sang Chul Jang),정명수(Myong Soo Chong),필감매(Chien Mei Pi),안훈모(Hun Mo Ahn),이재흥(Jae Heung Lee),노주희(Ju Hee Roh),배재룡(Jae Ryong Bae) 대한의료기공학회 2018 醫療氣功 Vol.18 No.1

The objective of this study is to verify the effects of Moosim-Gi-Gong Doinbeop on low back pain targeting low back pain patients hospitalized in Korean medicine hospitals. For the study, 44 adult female and male patients hospitalized with low back pain at M Korean Medicine Hospital and H Korean Medicine Hospital located in Gimpo, Gyeonggi Province were recruited. The subjects had a temperature difference between left and right 湧泉(KI1) of over 0.5℃ through infrared thermographic imaging, and 23 of them were classified in the control group for retrospective analysis based on the test records. Infrared thermographic imaging, X-ray pelvic AP view - standing position, a sit-and-reach test and a VAS survey were employed for detection, and IBM SPSS Statistics 24 for the statistical process. The results were rounded down to three decimal places as in an average±standard deviation, and the significance level was 0.05 to be evaluated significant if p<0.05. The result of the study is as follows: 1. In the comparison between before and after conducting Moosim-Gi-Gong Doinbeop, the meaningful difference was shown in the experimental group in all indicators. But Indicators except for the temperature difference between right and left 湧泉(KI1)(difference between before and after) and In displaced pelvic correction indicators on the X-ray showed a significant difference in the control group. 2. As for the variation widths of the experimental group and the control group, the former showed significant temperature differences between 印堂(EX-HN3) and 關元(CV4) and right and left 湧泉(KI1); difference variations of anteflexion; and changes in PI and In displacement on the X-ray. 3. As for changes in the experimental group according to demographic characteristics, gender, age and degree of obesity did not show significant differences in all indicators. However, those who experienced back pain for more than six months in the experimental group showed the biggest body temperature differences between 印堂(EX-HN3) and 關元(CV4), while other indicators had no significant difference. As a result, patients who received Korean medicine treatment showed relieved back pain and improvement in pelvic correction and sports activity; however, those who got Moosim-Gi-Gong Doinbeop together showed more clearer improvement effects in pelvic correction and sports activity.

Object-Oriented Application to EMS Database design

Choi,Sang-Yule,Kim,Joung-Hyung,Shin,Myong-Chul,Kim,Eung-Mo,Kim,Hak-Man 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

Currently , EMS (Energy Management system)database is implemented by relational concept. but, It is hard to describe the characteristic of powcr system data which require real time management and composite type. This paper present the way how to apply for EMS database using object-oriented concept which is free to describe composite data type and support inheritance concept. In this paper, first, It analyzed requirement of EMS database to find what kind of data and processing are needed. Second, Designed the conceptual design with EER(enhanced entity relation) modeling skill. During design the conceptual design, most important thing is to separate dynamic data form static data, and create entity with dynamic data and static data. Third is to convert the EER schema to object oriented schema. We belive that our results would contribute to the effective construction of database for most on-line database System.

The Analysis of Characteristics in Dry and Wet Environments of Silicon Nanowire-Biosensor

Choi, Hyoun Mo,Shin, Dong Jae,Lee, Jung Han,Mo, Hyun-Sun,Park, Tae Jung,Park, Byung-Gook,Kim, Dong Myong,Choi, Sung-Jin,Kim, Dae Hwan,Park, Jisun American Scientific Publishers 2016 Journal of Nanoscience and Nanotechnology Vol.16 No.5

<P>Our study investigates differences in sensitivity of dry and wet environment in the field of biosensing experiment in detail and depth. The sensitivity of biosensing varies by means of surrounding conditions of silicon nanowire field effect transistor (SiNW FET). By examining charged polymer reaction in the silicon nanowire transistor (SiNW), we have discovered that the threshold voltage (V-T) shift and change of subthreshold slope (SS) in wet environment are smaller than that of the air. Furthermore, we analyzed the sensitivity through modifying electrolyte concentration in the wet condition, and confirmed that V-T shift increases in low concentration condition of phosphate buffered saline (PBS) due to the Debye length. We believe that the results we have found in this study would be the cornerstone in contributing to advanced biosensing experiment in the future.</P>