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급성 요폐 및 하부요로증상의 소양인(少陽人) 육미지황탕가감방(六味地黃湯加減方) 치험 1례
조승완,오지연,김원영,임은철,이여경,홍승효,김동영,Jo, Seung-Wan,Oh, Ji-Yeon,Kim, Won-Young,Lim, Eun-Chul,Lee, Yeo-Gyeong,Hong, Seung-Hyo,Kim, Dong-Young 사상체질의학회 2020 사상체질의학회지 Vol.32 No.2
We report 1 case about Yukmijihwang-tanggagambang that was considered by Sasang constitution that was used for an elderly Soyangin patient with acute urinary retention, lower urinary tract symptoms and other symptoms. We treated an elderly Soyangin patient who suffered from acute urinary retention, lower urinary tract symptoms and other symptoms, who had history of benign prostatic hyperplasia. We considered his Sasang constitution and prescribed Yukmijihwnag-tanggagambang mainly. The improvement of his symptoms were evaluated by presence of symptoms, times of urination and visual analogue scale. After treatment that was been Yukmijihwang-tanggagambang mainly, patient's symptoms were disappeared or improved. And there was not any adverse effect. This study shows that using Yukmijihwang-tanggagambang that was considered by Sasang constitution can be effective treatment for an elderly Soyangin patient's acute urinary retention, lower urinary tract symptoms and other symptoms.
CNG/LPLI Bi-Fuel 자동차에서 주행시험 모드와 점화진각에 따른 배출가스 특성
조승완,김성훈,권석주,박성욱,전충환,서영호 한국분무공학회 2014 한국액체미립화학회지 Vol.19 No.1
Recently rise in oil prices feet the burden on not only diesel vehicle driver but also LPG vehicle driver, and get interested in various way to reduce fuel costs. In this study discuss on exhaust emissions characteristics on driving cycle mode and ignition advance condition change of CNG/LPLI Bi-Fuel vehicle. Experimental test was performed by changing the conditions of fuel (LPG/CNG), spark advance (Base, 10oCA, 15oCA), and driving mode (FTP-75, HWFET, and NEDC). In case of CO emission, in the order of CNG Base, CNG S/A10, S/A15 condition are average reduced -21%, -35%, -29% respectively compared to LPG fuel. The active emission reduction from the initial engine start, spark retard is likely to be beneficial in catalyst warm-up and improve combustion stability rather than spark advance.
감수말(甘遂末)을 사용한 소양인(少陽人) 환자의 만성 어지럼증 치험 1례
조승완,허한솔,임은철,고지윤,송건의,이주현,임교민,홍현진,Jo, Seung-Wan,Hur, Han-Sol,Lim, Eun-Chul,Koh, Ji-Yoon,Song, Gun-Eui,Lee, Ju-Hyeon,Lim, Gyo-Min,Hong, Hyeon-Jin 사상체질의학회 2018 사상체질의학회지 Vol.30 No.2
Objectives We report 1 treatment case with Euphorbiae Kansui Radix which is based on Sasang constitutional Medicine for Chronic Dizziness in Soyangin. Methos We treated Soyangin patient suffering form chronic dizziness. We prescribed Euphorbiae Kansui Radix for her physical symptoms. The improvement of her dizziness was evaluated by Visual Analogue Scale(VAS). Results After the Euphorbiae Kansui Radix was given, the patient's Dizziness was improved. And there was not any adverse effect. Conclusions This study shows that using Euphorbiae Kansui Radix can be effective treatment for Soyangin chronic dizziness patient.
조승완,리데덩,안병구 한국인터넷방송통신학회 2012 한국인터넷방송통신학회 논문지 Vol.12 No.4
LED는 빛을 내는 반도체 이다. 최근 친환경적 산업이 발전함에 따라 LED조명의 연구가 활발하게 진행되어가고 있다. 특히 LED를 이용한 통신기법인 LED 통신에 대한 활발한 연구가 진행 중이다. 본 논문에서는 LED 통신기반 멀티 홉 무선 전송네트워크시스템을 설계 구현하였다. 설계된 시스템은 LED를 이용한 송신부 회로, PD와 OP-Amp를 이용한 수신부 회로 및 멀티 홉 지원을 위해서 PD, OP-Amp 및 LED로 구성된 릴레이로 시스템이 구성된다. 설계된 시스템의 실험은 다음처럼 진행되었다. 송·수신부 양 끝단에 컴퓨터를 연결하고, 중간 노드로서 두 개의 릴레이를 송·수신 컴퓨터 사이에 연결한다. 그리고 텍스트 전송프로그램을 이용하여 텍스트를 연속적으로 전송하였다. 이때 보드 레이트, 전송거리 등 다양한 변화를 주면서 실험을 진행하였다. LED is just a semiconductor which can produce light. Currently, there are active research works on LED lighting technologies according to the growth of energy-saving environmental industry. Especially, LED communication is one of the active research works in these fields. In this paper, we design a LED communication-based multi-hop transmission wireless network system. The designed system consists of a transmission circuit system(transmitter) using LED and a receiving circuit system(receiver) using PD(photo detector) and OP-Amp, and relay system which can support multi-hop wireless network service with PD, OP-Amp, and LED, respectively. The experiments for the designed system are performed as follows. One computer is connected at the end of transmitter and receiver, respectively. There are two relays between transmitter and receiver, and text files are transmitted continuously by using text transmission programming. In this experiment, we test the performance with various baud rates, transmission ranges.
항공 LiDAR 자료를 이용한 산림재적추정 모델 개발 - 봉화군 춘양면 애당리 혼효림을 대상으로 -
조승완,김용구,박주원,CHO, Seung-Wan,KIM, Yong-Ku,PARK, Joo-Won 한국지리정보학회 2017 한국지리정보학회지 Vol.20 No.3
본 연구의 목적은 산림재적 현장자료와 항공 LiDAR 자료 기반의 산림재적 추정을 위한 회귀모델의 개발이다. 추정 모델은 경상북도 봉화군 지역에서 임의추출법에 의해 선정된 30개의 원형 표본지로부터 산출한 표본지별 산림재적을 반응변수로 하고, 항공 LiDAR 원자료로부터 개별 표본지의 고도분포 백분위수(Height Percentiles, HP) 및 층위 단위 점 개체수 백분율(Height Bin, HB)을 추출하여 예측변수로 사용하여 구성하였다. 단순선형회귀분석, 이차 다항회귀분석 및 단계적 회귀분석 방법을 이용한 다중회귀분석을 실시하여 적합모델들의 후보들을 도출하였으며, 검증을 위하여 각 모델별로 교차 타당성 검증을 실시하여 PRESS 통계치를 구하였다. 모델의 $R^2$ 및 PRESS을 비교하여 적합성을 검토한 결과, $HB_{5-10}$, $HB_{15-20}$, $HB_{20-25}$, $HBgt_{25}$의 다중회귀모델의 $R^2$이 0.509로 가장 높고, $HP_{25}$ 단순회귀모델의 PRESS 값이 122.352으로 가장 낮은 것으로 나타났다. 수직구조가 복잡한 우리나라 산림재적을 추정하는 모델로는 다양한 수직적 정보를 포함하고 있는 $HB_{5-10}$, $HB_{15-20}$, $HB_{20-25}$, $HBgt_{25}$이 상대적으로 보다 적합하다고 사료된다. This study aims to develop a regression model for forest volume estimation using field-collected forest inventory information and airborne LiDAR data. The response variable of the model is forest stem volume, was measured by random sampling from each individual plot of the 30 circular sample plots collected in Bonghwa-gun, Gyeong sangbuk-do, while the predictor variables for the model are Height Percentiles(HP) and Height Bin(HB), which are metrics extracted from raw LiDAR data. In order to find the most appropriate model, the candidate models are constructed from simple linear regression, quadratic polynomial regression and multiple regression analysis and the cross-validation tests were conducted for verification purposes. As a result, $R^2$ of the multiple regression models of $HB_{5-10}$, $HB_{15-20}$, $HB_{20-25}$, and $HBgt_{25}$ among the estimated models was the highest at 0.509, and the PRESS statistic of the simple linear regression model of $HP_{25}$ was the lowest at 122.352. $HB_{5-10}$, $HB_{15-20}$, $HB_{20-25}$, and $HBgt_{25}-based$ models, thus, are comparatively considered more appropriate for Korean forests with complicated vertical structures.