항핵항체 양성을 보인 아급성 괴사성 림프절염 1례

박혜영,박병수,심준용,박석원,김황민,김종수,송지선,박광화,Park, Hae Young,Park, Pyoung Su,Shim, Jun Yong,Park, Seok Won,Kim, Hwang Min,Kim, Jong Soo,Song, Ji Sun,Park, Kwang Hwa 대한소아감염학회 2001 Pediatric Infection and Vaccine Vol.8 No.1

저자들은 이전의 보고와 달리 알레르기의 과거력이 없으면서 ANA 양성을 보인 6세된 여아에서 아급성 괴사성 림프절염 1례를 경험하였기에 주로 자가 면역 질환과의 관련성에 대한 최근의 문헌 고찰과 함께 보고하는 바이다. Since the first description of Kikuchi disease(Subacute necrotizing lymphadenitis) in Japan, 1972, this condition has been reported in a worldwide. The etiology remains unknown. This disease shows a marked predilection for young woman, and a few cases in children has been reported. The usual initial clinical manifestation is localized cervical lymphadenopathy with fever, weight loss and myalgia. We experienced a 6 year-old girl of subacute necrotizing lymphadenitis with ANA, therefore report a brief review with the related literatures.

대인관계 증진 집단모래놀이치료가 중학생의 우울, 불안에 미치는 영향

박혜영(Hye-Yeong Park),강귀임(Gwi-Im Kang),김미향(Mi-Hyang Kim) (사)한국학교공공모래놀이학회 2020 학교상담 및 모래놀이 Vol.2 No.2

본 연구에서는 대인관계 증진 집단모래놀이치료가 중학생의 우울과 불안에 미치는 영향에 대해 알아보고자 하였다. 천안시에 위치한 A, B, C 중학교에 재학 중인 학생 48명을 대상으로 박혜영과 조성근(2020)이 개발한 대인관계 증진 집단모래놀이치료를 회기당 45분씩 주 2회, 총 8회기 실시했다. 프로그램의 효과를 검증하기 위해 Beck이 개발한 우울척도(BDI)와 불안척도(BAI)를 측정도구로 사용했고, 수집한 자료는 SPSS 18.0을 이용하여 paired t-test를 실시했다. 연구결과, 대인관계 증진 집단모래놀이치료는 중학생의 우울, 불안 감소에 긍정적인 영향을 미치는 것으로 나타났다. 이러한 결과는 대인관계 증진 집단모래놀이치료가 중학생의 우울, 불안 감소에 효과적인 치료기법이 될 수 있음을 시사한다. The purpose of this study was to examine the effects of group sandplay therapy programs on depression and anxiety in middle school students. For 48 students attending middle schools A, B, and C located in Cheonan, a group sandplay therapy program developed by Park (2020) was conducted twice a week, 45 minutes per session, eight times a week, and its effects were verified. The program effectiveness verification used the depression scale (BDI) and anxiety scale (BAI) developed by Beck as measurement tools, and the collected data was conducted using SPSS 18.0. These results suggest that group sand play therapy that promotes interpersonal relations can be an effective treatment technique to reduce depression and anxiety in middle school students.

재발된 외사시에서 한 눈 외직근 후전 및 내직근 절제술과 두 눈 내직근 절제술의 비교

박혜영,유문현,최동규,Hye Young Park,M,D,Mun Hyun Yoo,M,D,Dong Gyu Choi,M,D 대한안과학회 2006 대한안과학회지 Vol.47 No.1

Purpose: The purpose of this study was to compare the surgical results between unilateral lateral rectus recession-medial rectus resection (R&R) and bilateral medial rectus resections in recurrent exotropia. Methods: In this retrospective study, 22 patients with recurrent exotropia of the basic or pseudodivergence excess types were enrolled. In group A (14 patients), unilateral R&R was performed during the first operation, and R&R was performed in contralateral eyes during the second operation. In group B (8 patients), bilateral lateral rectus recessions were performed during the first operation and bilateral medial rectus resections during the second operation. Results: The mean time interval between the first and second operations was 28.9 months (range, 5 to 64 months) in Group A and 59.9 months (range, 35 to 75 months) in Group B, which was a significant difference between the two groups (p=0.006). The success rates at last follow-up after the second operation were 85.7% in Group A and 87.5% in Group B, which was not statistically different between the two groups (p<1.000). Conclusions: There was no difference in success rate after the second operation between the two groups. Therefore, the operation method for recurrent exotropia can be chosen according to the operator`s preference.

시판 쇠고기 죽의 이화학적 특성

박혜영,이춘기,심은영,김현주,전용희,곽지은,이진영,천아름,김미정,최혜선,박지영,우관식,Park, Hye-Young,Lee, Choon-Ki,Sim, Eun-Yeong,Kim, Hyun-Joo,Jeon, Yong Hee,Kwak, Jieun,Lee, Jin Young,Chun, Areum,Kim, Mi-Jung,Choi, Hye Sun,Park, Ji You 한국식품영양학회 2019 韓國食品營養學會誌 Vol.32 No.3

In this study, the product characteristics and physicochemical properties were investigated through collection of commercial porridge. The addition rate of grain raw materials was about 6.5~11.75%, glutinous rice was added at a rate of about 23~60% to improve the viscosity and various other food additives were used. The moisture content characteristics varied among the products. The rotational viscosity of CP (Commercial Porridge)4 was the highest at 39,054 cP, while the flow viscosity of CP3 was least at 4.80 cm/30 seconds. The starch content differed among the products in the range of total starch 6.96~8.08%, amylose 1.41~2.61%, total sugar 6.55~12.81% and reducing sugar 0.50~0.99%. Particularly, total sugar showed a very high correlation (-0.920) while rotational viscosity and color value (b) showed significant correlation with most of the properties i.e. moisture, solids content etc. There was a rapid increase in the reactivity of starch degrading enzyme at the early stage of the reaction which gradually decreased with time. The physicochemical characteristics of commercial porridge presented in this study could be expected to increase the industrial use value of the related research because it considers the quality of the currently commercialized porridge for the future selection of suitable porridge raw materials.

국산 옥수수 배유특성에 따른 일반성분, 색도 및 경도 비교

박혜영,김미정,배환희,신동선,심은영,최혜선,박지영,최유찬,김홍식,Park, Hye-Young,Kim, Mi Jung,Bae, Hwan-Hee,Shin, Dong Sun,Sim, Eun-Yeong,Choi, Hye Sun,Park, Jiyoung,Choi, Yu-Chan,Kim, Hong-Sig 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.5

This study was conducted to secure basic information for corn processing by comparing the quality characteristics according to maize cultivars and kernel types (dent, intermediate, flint-like). As a result of analyzing 15 cultivars, a range of measurements were observed: 100-kernel weight, 22.89~35.63 g; moisture, 7.57~8.42%; crude protein, 8.46~11.45%; crude lipids, 3.26~4.83%; Hunter's L-value, 83.70~86.79; a-value, 2.61~5.49; b-value, 22.01~28.15; and total carotenoids, 6.74~17.07 ㎍/g. Significance among the cultivars was shown in all quality characteristics (p<0.001), but the significance among the kernel types was found only in crude protein (p<0.005), crude fat (p<0.001), and Hunter's L-value (p<0.05). The hardness of maize was decreased proportionally to the soaking time for all maize cultivars (p<0.001). In particular, with the same soaking time for different kernel types, the hardness difference was shown in the order of flint-like > dent ≒ intermediate. It was confirmed that the decrease in the hardness of flint-like kernel of close to that of hard-type starch was slowed compare dent and intermediate kernels. So it is expected the some characteristic of kernel types will contribute to the appropriate customized use of the developed cultivars.

건설 CALS 기반 확산을 위한 혜택부여방안

박혜영,한상원,김범수,김기정,김수정,김재준,Park Hye-Young,Han Sang-Won,Kim Bun-Soo,Kim Ki-Jung,Kim Soo-Jung,Kim Jae-Jun 한국건설관리학회 2001 한국건설관리학회 논문집 Vol.2 No.3

정부는 건설 CALS를 통해 건설업을 지식기반 정보산업으로 변화시켜 건설산업의 선진화 및 국제 경쟁력을 확보하기 위해 노력하고 있다. 그러나 제도적 저해요소와 경기침체로 인한 투자위축으로 민간건설업체의 건설 CALS사업 참여가 저조한 실정이다. 본 연구의 목적은 건설 CALS 체제의 조기구축 및 기반 확산을 위해 민간건설업체의 참여를 유도할 수 있는 혜택방안을 마련하는 것이다. 이를 위해 건설업체 정보화 기초현황 조사를 수행하여 국내 건설산업의 정보화수준을 파악하였다. 혜택의 차등적 적용을 위한 평가 카테고리를 정하고 파악된 정보화 수준과 현행법상의 혜택부여 가능성을 점검하여 경제적 혜택방안을 도출하였다. The Korean government is making an effort to win the advance and international competitiveness of construction by changing Construction Industry into Knowledge-based information industry through Construction CALS. However, systematically obstructive factors and recession make participation of private construction companies in Construction CALS sluggish. The purpose of this paper is to suggest incentive program to induce participation of private construction companies in Construction CALS. Before setting up the direction of incentive program, the level of informatization in Korean Construction industry was grasped. Evaluation category for the discriminate application of incentives was defined and available incentive program was suggested.

옥수수 품종별 볶음 시간에 따른 이화학적 특성 변화

박혜영,손범영,최유찬,배환희,최혜선,박지영,심은영,김홍식,김미정,Park, Hye-Young,Son, Beom-young,Choi, Yu-Chan,Bae, Hwan-Hee,Choi, Hye Sun,Park, Jiyoung,Sim, Eun-Yeong,Kim, Hong-Sig,Kim, Mi Jung 한국식품영양학회 2022 韓國食品營養學會誌 Vol.35 No.5

The purpose of this study was to investigate the Maillard reaction-related physicochemical properties of three maize varieties (Kwangpyeongok, Sinhwangok2ho and Gangdaok) after roasting them for different times (0, 15, 25, 40, and 55 minutes). The Maillard reaction is a non-enzymatic browning reaction involving reducing sugars and amino compounds. The content of reducing sugar, the causative agent of the Maillard reaction, decreased as roasting time increased. Gangdaok showed the lowest reducing sugar content of 1.04 mg/g after 55 minutes of roasting. In the elapsed roasting time, chromaticity 'L' and 'b' values decreased. At 55 minutes of roasting, wherein the Maillard reaction occurred most actively, Gangdaok showed the lowest 'L' value of 56.37 and the highest 'a' value of 7.60. Gangdaok had superior conditions for inducing the Maillard reaction compared to other varieties, and it is consider that 'flint-type', an endosperm characteristic, may have been the influencing agent. This study detected a total of 52 types of volatile aroma compounds (VACs), of which 28 were produced after roasting. Of the total VACs detected, 2-Formyl-5-methylfuran and 2-Furancarboxaldehyde accounted for 43.8~45.5% and have been confirmed to be the major VACs present in roasted maize. Most of the correlations between the Maillard reaction-related characteristics showed high correlation coefficients.

총인 수질기준강화를 위한 국내 하수종말처리장의 물리화학적처리 특성조사 및 경제성 분석

박혜영,박상민,이기철,권오상,유순주,김신조,Park, Hye-Young,Park, Sang-Min,Lee, Ki-Cheol,Kwon, Oh-Sang,Yu, Soon-Ju,Kim, Shin-Jo 대한환경공학회 2011 대한환경공학회지 Vol.33 No.3

우리나라의 공공하수처리시설은 생물학적 인 제거공정을 운전하고 있으나, '12년부터 지역구분(I, II, III)에 따라 각각 0.2, 0.3 및 0.5 mg/L로 강화되는 방류수수질기준을 준수하기 위해서는 화학물질을 이용한 추가적인 인 처리시설을 적용할 필요성이 대두되었다. 강화된 총인의 수질기준을 만족하기 위해 적용된 물리화학적 처리기술 성능의 구체적인 운영자료 구축을 위하여, 화학적 응집제 사용 중인 인 처리시설 중 모범적으로 가동하고 있는 국내 시설의 운영 데이터를 분석하여 처리성능을 평가하였다. 또한, jar 테스트를 이용해 물리화학적 인 제거공정 적용 시 최적 응집제 주입율 도출, 인 제거 및 슬러지 발생특성을 관찰하고 약품비용과 슬러지 발생증가량을 산정하여 실처리장에 응집제 적용 시 예상되는 경제성 분석을 하였다. 활성슬러지를 이용한 jar 테스트 결과, 0.5와 0.2 mg/L 이하의 총인 농도를 달성하기 위해 필요한 최소한의 응집제(황산알루미늄, 폴리염화알루미늄)의 주입농도는 각각 25와 30 mg/L (as $Al_2O_3$)이며, 2차 처리수의 경우에는 동일한 총인 농도를 달성하기 위해 요구되는 응집제 주입농도가 활성슬러지에 비해 약 1/12~1/3 수준으로 감소하였다. jar 테스트 결과, 활성슬러지에 응집제를 주입할 경우에 고형물 농도가 약 10~11%가 증가할 것으로 예측되었다. 한편, 활성슬러지에 응집제를 주입하는 경우의 응집제(황산알루미늄) 구입비는 2차 처리수에 주입하는 경우에 비해 약 4~10배 정도가 증가할 것으로 산정되었다. 또한, 슬러지 발생량은 약 4~10배 정도 증가할 것으로 예측되었다. Wastewater treatment plants (WWTPs) are required to meet the reinforced discharge standards which are differentiated as 0.2, 0.3 and 0.5 mg-TP/L for the district I, II and III, respectively. Although most of WWTPs are operating advanced biological phosphorus removal system, the supplementary phosphorus treatment facility using chemical addition should be required almost at all WWTPs. Therefore, water quality data from several exemplary full-scale plants operating phosphorus treatment process were analyzed to evaluate the reliability of removal performance. Additionally, a series of jar tests were conducted to find optimal coagulants dose for phosphorus removal by chemical precipitation and to describe characteristics of the reaction and sludge production. Chemical costs and the increasing sludge volume in physicochemical phosphorus removal process were estimated based on the results of jar tests. The minimum coagulant (aluminium sulfate and poly aluminium chloride) doses to keep TP concentration below 0.5 and 0.2 mg/L were around 25 and 30 mg/L (as $Al_2O_3$), respectively, in the mixed liquor of activated sludge. In the tertiary treatment facility, relatively lower coagulant doses of 1/12~1/3 the minimum doses for activated sludge were required to achieve the same TP concentrations of 0.2~0.5 mg/L. Increase in suspended solids concentration due to chemical precipitates in mixed liquor was estimated at 10~11%, compared to the concentration without chemical addition. When coagulant was added into mixed liquor, chemical (aluminium sulfate) cost was estimated to be 4~10 times higher than in secondary effluent coagulation/separation process. Sludge production to be wasted was also 4~10 times higher than secondary effluent coagulation/separation process.

다층 퍼셉트론의 학습 성능 개선을 위한 일반화된 시그모이드 베이시스 함수

박혜영,이관용,이일병,변혜란(Hyeyoung Park),Kwanyong Lee,Yillbyung Lee,Hyeran Byun 한국정보과학회 1999 정보과학회논문지(B) Vol.26 No.11

다층 퍼셉트론은 다양한 응용 분야에 성공적으로 적용되고 있는 대표적인 신경회로망 모델이다. 그러나 다층 퍼셉트론의 학습에서 나타나는 플라토에 기인한 느린 학습 속도와 지역 극소는 실제 응용문제에 적용함에 있어서 가장 큰 문제로 지적되어왔다. 이 문제를 해결하기 위해 여러 가지 다양한 학습알고리즘들이 개발되어 왔으나, 계산의 비효율성으로 인해 실제 문제에는 적용하기 힘든 예가 많은 등, 현재까지 만족할 만한 해결책은 제시되지 못하고 있다. 본 논문에서는 다층퍼셉트론의 베이시스 함수로 사용되는 시그모이드 함수를 보다 일반화된 형태로 정의하여 사용함으로써 학습에 있어서의 플라토를 완화하고, 지역극소에 빠지는 것을 줄이는 접근방법을 소개한다. 본 방법은 기존의 변형된 가중치 수정식을 사용한 학습 속도 향상의 방법들과는 다른 접근 방법을 택함으로써 기존의 방법들과 함께 사용하는 것이 가능하다는 특징을 갖고 있다. 제안하는 방법의 성능을 확인하기 위하여 간단하 패턴 인식 문제들에의 적용 실험 및 기존의 학습 속도 향상 방법을 함께 사용하여 시계열 예측 문제에 적용할 실험을 수행하였고, 그 결과로부터 제안한 방법의 효율성 을 확인할 수 있었다. A multilayer perceptron is the most well-known neural network model which has been successfully applied to various fields of application. Its slow learning caused by plateau and local minima of gradient descent learning, however, have been pointed as the biggest problems in its practical use. To solve such a problem, a number of researches on learning algorithms have been conducted, but it can be said that none of satisfying solutions have been presented so far because the problems such as computational inefficiency have still been existed in these algorithms. In this paper, we propose a new learning approach to minimize the effect of piateau and reduce the possibility of getting trapped in local minima by generalizing the sigmoidal function which is used as the basis function of a multilayer perceptron. Adapting a new approach that differs from the conventional methods with revised updating equation, the proposed method can be used together with the existing methods to improve the learning performance. We conducted some experiments to test the proposed method on simple problems of pattern recognition and a problem of time series prediction, compared our results with the results of the existing methods, and confirmed that the proposed method is efficient enough to apply to the real problems.

마이크로웨이브 레인지 재가열 후 최적 특성을 갖는 쌀죽 제조조건

박혜영,김현주,심은영,곽지은,천아름,조영제,우관식,김미정,Park, Hye-Young,Kim, Hyun-Joo,Sim, Eun-Yeong,Kwak, Jieun,Chun, Areum,Jo, Youngje,Woo, Koan Sik,Kim, Mi Jung 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.4

The purpose of this study was to derive the conditions for manufacturing rice porridge with optimum properties after reheating. The characteristics of rice porridge according to the soaking time, water addition rate, heating temperature, heating time, and cooling conditions were compared using the 'Samkwang' cultivar. In Step I, as the heating temperature increased, the weight change decreased and the viscosity increased, and the temperature known as the main factor of the gelatinization also appeared to affect the viscosity increase. In Step II, the viscosity and the texture properties was not significantly different as the soaking time was reduced, and 10 minutes was suitable because of due to the shortening effect of the total process time. In Step III, the residual heat was lowered by cooling after the rice porridge production, so the viscosity could be greatly reduced. Also, it was confirmed that the water addition rate of 900% and the heating temperature of 15 minutes were optimal manufacturing conditions. The next study will investigate the porridge processability of rice cultivars using these results.