말차(抹茶) 첨가에 따른 증편의 품질 특성

정수영,유현희,김금숙,신미경,Jung Su-Young,You Hyeon-Hee,Kim Kum-Suk,Shin Mee-Kyung 동아시아식생활학회 2005 동아시아식생활학회지 Vol.15 No.6

The purpose of this study is to find out the optimal mixing ratios of Mal-Cha for the preparation of Jeung-Pyun through sensory and mechanical tests. The proximate composition of Mal-Cha were $5.46\pm0.15\%$ of moisture, $4.43\pm0.11\%$ of total nitrogen, $7.52\pm0.21\%$ of crude lipid, $8.74\%$ of crude fiber, $8.51\pm0.09\%$ of ash. Overall quality of Jeung-Pyun with $1.5\%$ Mal-Cha was the worst compare with 0, 0.5 and $1.0\%$ ones(p<0.05). Especially, $1.0\%$ Mal-Cha Jeung-Pyun showed the best overall quality. But the sweetness, sourness, flavor, hardness, and moistnes were not significantly different among all the treatments. Acceptabilities of 0.5 and $1.0\%$ Mal-Cha Jeung-Pyuns were not significantly different from that of the control in their sensory and mechanical qualities. Total color difference increased with the amount of Mal-Cha significantly(p<0.001).

선로 전압 조정을 위한 DSTATCOM 제어

정수영,김태현,문승일,Jung, Soo-Young,Kim, Tae-Hyun,Moon, Seung-Il 한국전기전자학회 2001 전기전자학회논문지 Vol.5 No.2

Two control techniques - PI and LQR(Linear Quadratic Regulator) - of DSTATCOM (Distribution Static Synchronous Compensator) for line voltage regulation in distribution system are presented. It is shown that the voltage waveform is improved if the proposed methods are applied in IEEE 13 radial distribution system using PSCAD/EMTDC package in case of single line-to-ground fault. The three cases - without control, with PI control and with LQR control - are compared. The LQR control is shown to be best in respect of response profile and control effort required among them. 본 논문에서는 배전 계통에서 전압 파형 개선을 위하여 배전용 정지형 보상기(DSTATCOM)의 제어 기법 2가지를 보였다. 1선 지락 사고 시에 제시한 방법을 이용한 시뮬레이션을 통해 선로 전압 파형이 개선됨을 알 수 있다. 또한 비제어 및 PI 제어와 LQR 제어를 비교하였다. 요구되는 응답 특성 및 제어 효과에서 LQR 제어가 우수함을 보이고 PSCAD/EMTDC을 이용하여 검증하였다.

비파열매 분말을 첨가한 쉬폰 케이크의 품질 특성

정수영,빙동주,전순실,Jung, Su-Young,Bing, Dong-Ju,Chun, Soon-Sil 한국식품조리과학회 2015 한국식품조리과학회지 Vol.31 No.2

The loquat (Eriobotrya japonica) is a plant belonging to the Rosaceae family, native to south-central China. It is cultivated in relatively warm areas such as Spain, Japan and South Korea. It is used commercially as an ornamental plant and for its yellow fruit, which contains much carotenoid, sugar and a little organic acid. In this study, chiffon cakes were prepared with the addition of 3%, 6%, 9% and 12% loquat fruit powder (LFP) in order to invest the mixing conditions. When more LFP was added to the dough, the pH level of the dough became lower. Specific gravity and viscosity of the dough significantly increased as higher amounts of LFP were added. In baked cakes, the weight and baking loss rate of LFP were not significantly different between samples, and the height of the risen test samples were lower than that of the controls. Moisture content was 33.58% in the 12% LFP sample (12% LFPS), which was the highest of all the samples. With respect to crust color, lightness, redness and, yellowness, these significantly decreased as the amount of LFP was increased, the 12% LFP being the lowest of all the samples. Lightness and yellowness of crumbs significantly decreased as the amount of LFP was increased, whereas redness showed the reverse effect. When looking at hardness and adhesiveness, the 12% LFPS was the highest of all the samples, nevertheless a difference in resilience was not significant among the samples. According to consumer perception, bitterness was significantly increased as amounts of LFP increased, however a difference in salty, astringency and oily tastes were not significant among the samples. The 12% LFPS showed the lowest score with respect to softness and overall acceptability. In conclusion, LFP could be considered a functional material, with the optimum amount of LFP for a chiffon cake of 3~9%.

蜈蚣 에테르 추출물의 RAW 264.7 cell에서 LPS로 유도된 염증반응 억제 효과

정호경(Ho Kyung Jung),조현우(Hyun Woo Cho),정원석(Won Seok Jung),최인영(In Young Choi),조정희(Jung Hee Cho),정수영(Su Young Jung) 한의병리학회 2013 동의생리병리학회지 Vol.27 No.1

ID 기반 키 분배 기법을 활용한 전력사용량 정보 전송 프로토콜

정수영 ( Su Young Jung ),곽진 ( Jin Kwak ) 한국항행학회 2012 韓國航行學會論文誌 Vol.16 No.4

최근 기존의 단방향 전력 시스템을 개선하여 안정적인 전력공급, 효율적인 에너지 관리 등을 가능하게 하는 스마트그리드가 관심을 받고 있다. 전력선통신(PLC : Power Line Communication)기술을 활용한 스마트그리드 환경은 각 가정의 PLC 모듈에서 수집한 정보를 데이터전송장치(IRM : Integrated Regional Manager)에 전송하고, 다시 그 정보를 전력서버로 전송한다. 이러한 통신 과정에서는 기존의 IT환경에서 발생하는 보안위협을 포함한 소비자의 개인정보유출, 전력망 마비 등의 다양한 문제가 발생할 수 있다. 그러므로 본 논문에서는 전력사용량 정보 전송과정에서 발생할 수 있는 보안위협에 대응하기 위해 ID 기반 키 분배 기법을 활용한 전력사용량 정보 전송 프로토콜을 제안한다. Recently, smartgrid has interested in enable to existing electrical grid to supplying stably and efficient energy management. Smartgrid environment using PLC is transmit PLC module collected electricity consumption information in each house from PLC module to server. This communication process can occurred security threats such as personal information leak of consumer, electrical grid paralysis. In this paper, we propose efficient electricity consumption information transmission protocol with ID-based key distribution method for respond to security threats.

관람객과 전시물의 전시정보전달 프로세스를 고려한 전시특성에 관한 연구

정수영(Jung Su-Young),임채진(Lim Che-Zinn),윤성규(Yoon Sung-Kyu) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.4

This study is about a process to communicate exhibits and exhibition information for people visiting museum. In this study, it was explained the relationship with visitors dividing the structure of exhibits according to the form of beginning and ending for viewing exhibits. The constitutive laws of the beginning and the ending the exhibits have can be explained by the binding power on the holding power that holds the visitors at the exhibits. Furthermore, exhibition information transfer process of visitors who were given the exhibition information from exhibits was cognitive psychologically analyzed. The visitors collect the exhibition information through the human senses such as sight, hearing, touch, sense of balance, taste and smell etc.. However, the characteristic of the information collected is characterized according to the feature of each human sense. Even though the information is collected in different process, all information is handled dividing into Spatial codes and Verbal codes (Wickens (1980, 1984)) and encoding external environment information by the human recognition system. Like this, the exhibition information reacts through the automatic or optional process. Through these features, this study is to explain the structural relationship of the visitor’s attitude towards the exhibits that can occur in accepting the exhibition information of the exhibits. This dissertation can be used as a base information to plan the efficient exhibition while clearly understanding the characteristics of the intended exhibition information transfer process on planning exhibition and visitors.

『상한론(傷寒論)』변병진단체계(辨病診斷體系)에 근거하여 계지감초용골모려탕(桂枝甘草龍骨牡蠣湯) 투여 후 호전된 안면홍조 치험 1례

정수영 ( Su-young Jung ),김연주 ( Yeon-ju Kim ),이상기 ( Sang-kee Lee ) 대한상한금궤의학회 2020 대한상한금궤의학회지 Vol.12 No.1

Objective: The aim of this study was to evaluate the effects of Gyejigamchoyonggolmoryeo-tang on facial flush. Methods: Facial flushwas evaluated using photographs and questionnaires. The (VAS) and investigator's global assessment were used to measure the improvement in facial flush symptoms. Results: The visual findings were . The VAS score decreased from 10 to 0 after administration of Gyejigamchoyonggolmoryeo-tang for 40 days. In addition, accompanying symptoms such as neck pain, palpitation, and insomnia were improved. These results indicated that Gyejigamchoyonggolmoryeo-tang was effective for emotional facial flush. Conclusions: This study shows the effective treatment of facial flush using Gyejigamchoyonggolmoryeo-tang based on the provisions of the Shanghanlun disease pattern identification diagnostic system.

우리나라 상수리나무 임분의 이화학적 토양특성이 지위지수에 미치는 영향 - 도서 및 해안 지역을 포함하여 -

정수영 ( Jung Su -Young ),이광수 ( Lee Kwang -Soo ),이상현 ( Lee Sang- Hyun ),박용배 ( Park Yong- Bae ),안기완 ( An Ki-Wan ) 한국도서(섬)학회 2017 韓國島嶼硏究 Vol.29 No.4

본 연구에서는 상수리나무(Quercus acutissima Carruth.)의 지위지수(Site Index; 참조 임령 20년일 때의 우세목 평균수고)와 토양의 물리적·화학적 성질간의 관계 특성을 분석함으로써 도서지역 및 해안지역 등을 포함한 미립목지에 대하여 해당 조림 수종의 임지생산력을 추정하여 평가하고자 하였다. 온·난대산림대에서 22개 상수리나무 임분에 대하여 147개 표준지를 선정하고 선정된 표준지에 대한 임분 조사 및 토양시료 채취를 시행하였다. 토양의 물리적·화학적 성질 13개 설명요인에 의하여 정도 높은 지위지수를 추정하기 위하여 다중회귀분석 다중공선성진단, 변수선택법, 단계적회귀분석, 주성분분석 등 통계적 접근방법 및 검증 절차를 통해 도출된 각 모델의 추정치에 대한 신뢰성과 타당성을 평가하고자 하였다. 이를 위해 도출된 각 모델에서 종속변수(지위지수)에 대한 개별 설명변수의 관계특성, 즉 해당변수의 추정치가 가지는 부호와 크기를 해당 설명변수와 지위지수와의 상관관계특성과 상호 비교분석함으로써 추정계수의 일관성을 검증하였다. 이러한 방식으로 평가된 통계적 접근방법 및 적용방법에 따른 도출된 여러 모형으로부터 각 설명변수의 추정치 특성을 고찰해 본 결과, 주성분회귀 분석에 의한 도출된 모형의 추정치 신뢰성이 여타 추정 모형에 비해 상대적으로 높게 평가되었다. 이러한 통계적 검증 절차를 거친 후, 주성분분석에서 유의 선정된 주성분을 이용하여 원 독립변수를 주성분 회귀모형에 재투입함으로써 최종적으로 토양의 물리적·화학적 특성에 대한 지위지수 모형을 적합화 하였다. 즉, 지위지수 추정을 위한 주성분회귀분석에서 제1 주성분과 제2 주성분에 대한 유의적으로 기여도가 높은 독립변수의 관계특성을 재분석하였으며, 최종 지위추정 모형에서는 각 토양 요인이 지위에 미치는 계수의 부호 및 크기에 대한 피드백 결과를 취합하여 그 신뢰성을 획득하였다. 상수리나무의 지위지수를 추정하기 위한 통계적 처리과정과 접근방법을 적용함에 있어서의 본 연구에서 평가된 각 추정모형에서 토양 요인 간 유의한 상관관계에 의한 고도의 다중공선성의 문제를 대부분 해결할 수 있었다. 상수리나무 임분 토양특성으로부터 추정된 지위지수 모형은 진단적 일반 회귀모형에 의해 도출된 지위추정 모형에 비해 추정치의 신뢰성 및 식에 대한 적합도가 상대적으로 높게 나타났으나, 설명력이 다소 낮게 나타난 이유는 토양 이외의 환경특성 등에 기인한 것으로 판단된다. 다중공선성을 제거하여 최종 도출된 지위추정 모형에서 기여도가 높은 설명변수는 전질소, 치환성나트륨, 치환성카륨, 유기물함량 및 토양 산도의 순이었다. 이상의 결과로부터 도서지역 및 해안지역 등의 미립목지에 대한 상수리나무의 조림 적지 타당성을 평가하고자 할 때 토양의 물리적·화학적 특성으로부터 해당 수종의 조림 성공여부를 미리 판정 가능할 것으로 판단된다. 특히 미립목지에 대한 해당수종의 조림 성공여부를 정도 높게 예측 가능할 것으로 판단되는데, 향후 그 활용가치를 더욱 높이기 위해서는 장기적으로 도출된 결과에 대한 현지 모니터링이 필요할 것으로 판단된다. Site productivity for Quercus acutissima Carruth. stands was estimated for unstocked land in the Republic of Korea including offshore islands and coastal areas, using the relationship between site index (SI, the average height of dominant trees at a fixed age) and physical and chemical soil properties. Site index is the most common measure of forest site productivity for tree growth. A total of 147 plots were selected in 22 sawtooth oak stands in the central temperate forest zone. A multiple regression model was derived for predicting site index using 13 soil properties. Multicollinearity diagnostic tests were performed, and stepwise regression and principal components regression (PCR) models compared. In the final regression model, the independent variables were fitted using the most significant principal components (PCs). In this statistical process, we focused on relationships among soil properties that can result in multicollinearity problems. In PCR, we applied principal component analysis (PCA) based on the correlation matrix to the independent variables. We then selected the two most significant PCs and derived a regression using these PCs. This procedure yielded reliable estimates of regression coefficients. In terms of the magnitude and sign of the regression coefficients in the final SI model derived from all of the soil variables using the significant PCs performed better than the preliminary SI model derived using stepwise regression. In this final model, the most important soil properties in descending order of importance for predicting Q. acutissima SI were total nitrogen (T.N.), exch. Na⁺, exch. K⁺, organic matter (O.M.), and pH. These results provide important criteria for establishing Q. acutissima stands especially in unstocked land, and provide guidance for aforestation in new plantations.

현실임분 생장특성에 의한 편백 임분수확표 개발

정수영 ( Su Young Jung ),이광수 ( Kwang Soo Lee ),이호상 ( Ho Sang Lee ),배은지 ( Eun Ji Bae ),박준형 ( Jun Hyung Park ),고치웅 ( Chi-ung Ko ) 한국산림과학회(구 한국임학회) 2020 한국산림과학회지 Vol.109 No.4

본 연구는 남부지방 대표수종인 편백 현실림의 생장 특성을 반영한 수확표를 작성하기 위하여 수행되었다. 200개소 이상의 편백의 표준지 생장조사 자료를 분석에 이용하였다. 기존의 임분수확표 작성 절차인 직경분포의 추정, 적합, 예측의 단계를 거쳤으며, 직경분포모델은 Weibull 함수를 이용하였다. 임지생산력을 평가하기 위한 기준인 지위지수(기준임령 30년)는 Chapman-Richards식을 이용하여 추정하였다. 임분수확표 작성을 위한 평균직경 등 여러 추정식은 적합도를 고려하여 최적의 식을 선정하고 이용한 결과, 조사된 편백 현실임분의 지위지수는 10∼18 범위에 있음이 밝혀졌다. 추정된 임분재적 모델은 편백림의 임분재적에 대해 62%의 설명력을 가지는 것으로 나타났다. 실재적과 추정재적 간의 잔차도분석 결과 ‘0’을 중심으로 모두 고른 잔차를 보여 본 추정 결과를 이용함은 문제가 없을 것으로 판단되었다. 이번 남부지방을 대표하는 침엽수인 편백에 대한 임분수확표 작성 결과가 현실의 산림경영에 폭넓게 사용되기를 바라며, 향후 편백 임분 생장이 더욱 안정화되고 생육 발달로 장벌기 대경재 생산지가 많이 확보되면 더욱 개선된 수확표의 작성도 가능할 것으로 기대된다. We constructed a stand yield table for Chamaecyparis obtusa based on data from an actual forest. The previous stand yield table had a number of disadvantages because it was based on actual forest information. In the present study we used data from more than 200 sampling plots in a stand of Chamaecyparis obtusa. The analysis included theestimation, recovery and prediction of the distribution of values for diameter at breast height (DBH), and the result is a valuable process for the preparation ofstand yield tables. The DBH distribution model uses a Weibull function, and the site index (base age: 30 years), the standard for assessing forest productivity, was derived using the Chapman-Richards formula. Several estimation formulas for the preparation of the stand yield table were considered for the fitness index, and the optimal formula was chosen. The analysis shows that the site index is in the range of 10 to 18 in the Chamaecyparis obtusa stand. The estimated stand volume of each sample plot was found to have an accuracy of 62%. According to the residuals analysis, the stands showed even distribution around zero, which indicates that the results are useful in the field. Comparing the table constructed in this study to the existing stand yield table, we found that our table yielded comparatively higher values for growth. This is probably because the existing analysis data used a small amount of research data that did not properly reflect. We hope that the stand yield table of Chamaecyparis obtusa, a representative species of southern regions, will be widely used for forest management. As these forests stabilize and growth progresses, we plan to construct an additional yield table applicable to the production of developed stands.

관람객의 전시환경 인지와 관람행태에 관한 연구

정수영(Jung, Su-Young),윤성규(Yoon, Sung-Kyu) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.8

People come to museum to have a look at the exhibition. The pathway they take while viewing the exhibition is linked to the spatial structure of the museum. In particular, the pathway in the exhibition space is influenced by the layout of the exhibits. People tend to choose their pathway naturally according to their purpose and their conditions of museum-fatigue without having to plan it prior to it. And it’s at this moment, that active and passive pathway is noticed. The distance of the pathway is determined by the structure of the exhibition room. The study was done on the layout of the exhibits. It showed that people chose their pathways depending on the location of the exits. When the exit was far away, people became tired quickly by the length of the exhibition room even for the active visitors. On the other hand, when the exits were nearby, it provided more opportunity to show the exhibits for the passive visitors. As the study was done in understanding the specific needs of the layout of the exhibits, it will provide more pleasant and effective view of the exhibition and the planning of the exhibits to the visitors.