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대기중의 O₃, SO₂, NO₂의 측정을 위한 차분흡수 라이다의 오차해석
박진화,이용우 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-
In this study, we composed algorithm of DIAL(Differential Absorption Lidar). We investigated the absorption spectrum of O3, SO2, and NO2 dependent on wavelengths using the data base UV-Bank and determined the optimized wave- length model, Here, the selected optimal wavelengths are 292.00(λon), 295.20(λoff) for O3, 299.38(λon), 300.05(λoff) for SO2 and 448.00((λon), 449.85((λoff) for NO2. In particular, we established the supposed model of DIAL and simulated the error of measuring distance using the selected optimal wavelength. In the model-I with telescope of 300 mm diameter, laser energy of 3 mJ and transmission of 10000 shots, maximum distances are 4 km for O3 measurement and 5 km for SO2 and NO2 measurements, Also, in the model-II with telescope of 600 mm diameter, laser energy of 30 mJ and transmission of 10000 shots, maximum distances are 13 km for SO2 and NO2 measurements.
정해선,김진숙,이경화 가톨릭대학교 생활과학연구소 2001 생활과학연구논집 Vol.21 No.1
The purpose of this study is to activate the internet cosmetic shopping mall by evaluating customer's satisfaction. The results of the customers' satisfaction in internet cosmetic shopping mall shows that the average of the follows are high: "ordering in convenient time is possible "received the highest point and "comparison with the other brand's goods is easy", "time can be saved" and "price is low" are received fairy high point. But "buying colored cosmetic is easy", "refund is easy" showed low satisfaction. These shows that customers have negative feeling in choosing colored cosmetic and refunding when they use cosmetic shopping mall. The analysis of the total points of the shopping mall reveals that compound shopping mall show many superiorities in contents, and specialized cosmetic shopping malls show superiorities in satisfaction but compound shopping mall is more convenient to the customers than specialized cosmetic shopping mall.
Bowel Function in Acute Stroke Patients
Jin Hwa Yi,Min Ho Chun,Bo Ryun Kim,Eun Young Han,Ji Young Park 대한재활의학회 2011 Annals of Rehabilitation Medicine Vol.35 No.3
Objective To investigate factors related to bowel function and colon motility in acute stroke patients. Method Fifty-one stroke patients (29 males, mean age 63.4±13.6 years, onset 13.4±4.8 days) were recruited and divided into two groups: constipation (n=25) and non-constipation (n=26) groups. We evaluated the amount of intake, voiding function, concomitant swallowing problem and colon transit time (CTT) using radio-opaque markers for ascending, descending and rectosigmoid colons. Th e Adapted Patient Evaluation Conference System (APEC), Korean version of Modifi ed Bathel Index (K-MBI) and Motricity Index (MI) were evaluated. Results Th e constipation group showed signifi cantly prolonged CTT of ascending, descending and entire colon (p<0.05) and more severe swallowing problems (p=0.048). The APEC scale (2.65±1.44 vs 1.52±0.92, p=0.001),K-MBI scores (59.4±14.4 vs 28.0±24.3, p<0.001) and MI scores (69.1±22.3 vs 46.8±25.9, p=0.001) of the constipation group were signifi cantly lower compared to the non-constipation group. Conclusion Our study demonstrated that bowel function in acute stroke patients was associated with functional status and swallowing function, indicating the need for intensive functional training in post-stroke constipation patients.
이화진 ( Hwa Jin Yi ) 한국독서학회 2000 독서연구 Vol.5 No.-
In this paper, two views toward the Information age were distinguished. The first view is to regard the introduction of Information age as a technological change from print to electronic media. The second view is to regard it· as a drastic paradigmatic shift in the history of human civilization. In terms of reading strategies pursued in the Information Age, ``Knowledge Acquisition`` Strategy was proposed from the first view, while ``Knowledge Creation`` Strategy was suggested from the second one. The ``Knowledge Acqusition`` Strategy emphasizes hierarch- ical, rational, and logical reading strategies for comprehens- ion, inferencing, and critical reading. On the contrary, the ``Knowledge Creation`` Strategy prefers horizontal and criss- crossing reading strategies, which are used to select and connect knowledge, and create new knowledge. In conclusion, it was suggested that a wisdom is required for the reader to switch off reading strategies properly according to the reading purpose she or he strives for.
MEDICOS : An MDO-Enabling DIstributed COmputing System
김신의(Shen Yi Jin),정갑주(Karp Joo Jeong),이재우(Jae Woo Lee),김종화(Jong Hwa Kim),김우현(Yu Xuan Jin) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.1A
This paper presents a computing system, called MEDICOS, that enables Multidisciplinary Design Optimization (MDO) technology for engineering design on distributed environments. In MDO, various legacy softwares have to be integrated, so dynamic configuration and seamless coordination between these legacy softwares must be supported. MEDICOS is designed to address these issues by the Linda shared memory model-based design and the agent-based wrapper technology. A prototype system for engineering designs is developed and tested with designing a super high temperature vacuum furnace.
Kim, Jong-Hwa,Kim, Young-Kyun,Yi, Yang-Jin,Yun, Pil-Young,Lee, Hyo-Jung,Kim, Myung-Jin,Yeo, In-Sung,Yun, Pil-Young,Lee, Hyo-Jung,Kim, Myung-Jin,Yeo, In-Sung 대한치과보철학회 2009 The Journal of Advanced Prosthodontics Vol.1 No.3
STATEMENT OF PROBLEM. Many dental clinicians are concerned about immediate loading of inserted implants. However, there have been few clinical studies surveying the success rates of immediate loading, based on Korean implant systems. PURPOSE. The aim of this study was to evaluate the outcome of immediate functional loading of the implant (SinusQuick EB, Neobiotech Co., Seoul, Korea) in partially edentulous maxilla or mandible. MATERIAL AND METHODS. Total 15 implants were placed. Within 2 weeks after implant insertion, provisional implant-supported fixed partial dentures were delivered to the patients. Quantitatively, marginal bone loss was measured at the time of immediate loading, after 3-months of continued loading and at the last follow-up. The mean follow-up period was 4.8 months. RESULTS. Mean marginal bone loss from implant surgery to early loading, 3-months follow-up and last follow-up was 0.03 %0.07 mm, 0.16 %0.17 mm and 0.29%0.19 mm. No implant failed up to 6 months after insertion, resulting in a 100% survival rate. CONCLUSION. Immediate loading exhibited high success rate in partial edentulism for up to 6 months. Well-controlled long term clinical studies with large sample size are necessary to confirm this finding.