외이경혈 미세전류신경근 자극과 체성경혈 미세전류신경근 자극이 압통역치에 미치는 효과

한승수,고현철,조원호 한국전문물리치료학회 1997 한국전문물리치료학회지 Vol.4 No.2

우리나라 대기오염의 변화추세와 지역별 분포 및 대기오염물질과 관련요인

한성현,서승희 순천향대학교 기초과학연구소 2004 순천향자연과학연구 논문집 Vol.10 No.2

The purpose of this study was to describe the trend and distribution of air pollutants by cities based on air monitoring data(1998-2001) and socio-economic annual report data of 25 cities in Korea were analyzed by ecological study design with statistcal package program and GIS tool. Air pollution data of 6 regulated pollutants(SO_(2), NO_(2), O_(3)CO, PM_(10)) was collected with annual report of air monitoring published by Korea Ministry of Environment. Socio-economic statistics including population density, age distribution, forest ratio ect. were filing using Korea National Statistical Office database. Simple correlation analysis was performed to find correlation of the air pollution. degrees between socio-economic factors of selected cities. The results were air pollution trends of 51 cities in Korea showed that cities around Seoul have higher level of air pollution than that of Seoul. Except O3 level, there were significantly correlated the proportion of forested area and population density with air pollution. O3 level was correlated with higher level of seaside and industrial cities. In conclusion, the Policy for the control of air pollution should be conducted according to ecological characteristics of each cities by local province. Further research is required to propose more illustrative means to evaluate causal relationship between air pollution and epidemiological health effect data.

시민참여와 정부신뢰

정수현,강한솔,황은진,이정주,노승용 서울여자대학교 사회과학연구소 2012 사회과학논총 Vol.19 No.-

이 연구는 시민참여와 정부신뢰와의 관계를 분석하는데 그 목적이 있다. 이를 위하여, 이 연구에서는 시민참여를 전통적인 오프라인 시민참여와 디지털 방식인 온라인 시민참여로 그 유형을 분류하고, 오프라인 시민참여와 온라인 시민참여의 경험이 정부신뢰와 어떤 관계가 있는지를 분석하였다. 2차 자료를 활용하여 빈도분석, 교차분석, t-test, 분산분석, 회귀분석 등을 실시한 결과 먼저, 우리나라 시민참여 경험자는 약 22% 정도이며, 오프라인 시민참여 경험자는 약 12%, 온라인 시민참여 경험자는 약 15%, 그리고 온라인과 오프라인 시민참여를 모두 경험한 시민은 약 5% 정도인 것으로 나타났다. 또한, 시민참여와 정부신뢰와는 관계를 분석한 결과 통계적으로 유의미한 관계가 없는 것으로 나타났다. 오히려, t-test 및 분산분석 결과 오프라인 및 온라인 시민참여 경험자에 비하여 무경험자의 정부신뢰 수준이 상대적으로 약간 더 높은 것으로 나타났다. 시민참여의 경험 유무 만으로 정부신뢰를 설명하는데는 한계가 있음을 보여 주는 결과일 뿐만 아니라 시민참여를 제도적으로 보장하는 것에서 나아가서 시민참여가 실질적 효과를 높일 수 있도록 시민참여과정에서 정부와 시민의 보다 적극적인 노력이 필요함을 보여주는 결과라 하겠다. Trust in government adds legitimacy to political system, provides social stability, and helps government to work effectively. In addition it increases cooperation between governments and citizens, and improves effectiveness of government affairs. However, citizens' trust in government has been quite low sine 1990s. In Korea, citizens' trust in government dropped after financial crisis in late 1990s. Various literatures indicated that citizen participation is one of the best ways to increase citizens' trust in governments. Especially as information technology increases, it is expected that citizens acquire information about different policy areas, and actively participate in surveys, discussion, and policy evaluation through internet. This research attempts to prove the relationship between citizen participation and trust in government by comparing online and offline citizen participation. The research utilized 2nd dataset from 'the influence of information on citizens' participation in policy-making.' With various statistical techniques such as frequency analysis, cross tabulation, ANOVA, and regression analysis, the characteristics of offline and online policy participants are examined. The results showed that citizens, who participate in policy-making processes more actively both online and offline, trust in government less. Comparing online and offline participation, online participants distrusted government more than offline participants. Such variables as policy competitiveness, democracy in government, quality of government, and transparency in government have direct influences on trust in government. However, citizen participation is not statistically significant. Key Words:Citizen Participation, Traditional Citizen Pariticipation, Digital Citizen Participation, Trust in Government.

기어의 자동설계와 검증에 관한 연구

한민식,김승현,송호봉,전언찬 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

Gear is main machine element which is used for the power transmit device when it si short in the gear. We use a standard goods in the case of the gear. But in case of special purpose, we need to manufacture the gear that have different angles. In this paper, we manufactured standard gears using W-EDM and Hobbing machine. We got a 3D shape doing reverse engineering manufactured gears. And then compared CAD data and measured data. Finally we verified ADS through comparing ADS data and KISSsoft data.

Simplified Effective Compressive Strengths of Columns with Intervening Floor Slabs

Seung?Ho Choi,Jin?Ha Hwang,Sun?Jin Han,Hae?Chang Cho,Jae Hyun Kim,Kang Su Kim 한국콘크리트학회 2020 International Journal of Concrete Structures and M Vol.14 No.5

The current design codes discuss the effective compressive strengths of columns, which reflect a decrease in load transfer performance that can occur when columns and slabs have different concrete compressive strengths. The effective compressive strength of a column increases as it is confined by the slab, and the design codes mandate three different effective compressive strengths for interior columns (confinement on four sides), exterior columns (confinement on three sides), and corner columns (confinement on two sides). For both corner and exterior columns, the confinement effect of the slab is significantly smaller than that for the interior column, and there is a more marked decrease in load transfer performance. However, there is still a lack of theoretical studies investigating the effective compressive strengths of the corner and exterior columns. Therefore, based on the analysis model established in previous research, this study has proposed an equation for calculating the effective compressive strengths of the corner, exterior and isolated columns without any confinement effects of the slab. In addition, axial loading tests of isolated columns were conducted and the proposed equation was verified.

당뇨병성 말초신경병의 평가에 대한 전류감지검사의 임상적 유용성

김승현,심충섭,김주한,김명호 대한신경과학회 1998 대한신경과학회지 Vol.16 No.5

상심실성 빈맥환자에서 관상정맥동의 형태비교

현대우,김윤년,박소영,한성욱,허승호,김기식,김권배 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.4

유화확산법을 위한 유화제로서의 수용성 mPEG-PLGA 공중합체의 사용

한승훈,손서연,김중현 한국공업화학회 2004 응용화학 Vol.8 No.1

Drug carrier formed by a poly(ethylene glycole) (PEG) corona, sterically protects the carrier, avoids their interaction with plasma proteins and phagocytic cells, and thus significantly increase the circulatory blood half-lives of these carrier. Poly(D,L-lactide-co-glycolide) (PLGA) is biodegradable and biocompatible. Non-biodegradable surfactant, such as poly(vinyl alcohol) (PVA), remains in the final composition of the particles. Residual PVA amounts as high as 52%. BiodegradableSurfactant would replace the commonly non-bidoegradable surfactant. In this study, PEG-PLGA di/block copolymer with different HLB was synthesized by ring-opening polymerization. CMC was determined by surface0tension meter. Drug loaded nanoparticles were prepared by emulsification0diffusion method. The size and zeta potentialof the nanoparticles were determined using photo correlation spectroscopy (PCS) and microelectrophoresis.

出産進度에 영향을 주는 要因分析 : Longitudinal Approach

韓聖鉉,李時伯 家族計劃硏究院 1977 家族 計劃 論集 Vol.4 No.-

음향방출 센서를 이용한 세라믹 가공 상태 감시

한명철,김정관,허승현,김성렬,김찬봉 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

The acoustic emission (AE) sensor has been widely used for monitoring the machining states or tool abrasion, etc. This paper presents the relation between machining time and states such as tool abrasion for ceramic machining processes, which can be applicable to develop the dentistry machining center. A commercial PZT-type of AE sensor was used for experiments, and the aquisition data was analyzed in the AE signal strength versus machining time. The results show that it is possible to estimate the tool life and the ceramic machining state. In the future, additional experiments for various machining conditions such as depth of cut and feed rate are strongly necessary so as to design an effective monitoring system for the ceramic machining processes through detecting the AE signal.