초음파 시험에 의한 자기유체의 탄성율 산정

김종희,김건우,김철기,이승구,구만회,Kim, Jong-Hee,Kim, Kun-Woo,Kim, Cheol-Gi,Lee, Seung-Goo,Koo, Man-Hoi 한국재료학회 2012 한국재료학회지 Vol.22 No.3

Magnetic nanoparticles for ferromagnetic fluids and magnetorheological fluids were prepared by chemical coprecipitation and mechanical milling, respectively. The surface-treated particles were dispersed at various weight ratios into a medium of polyethylene glycol. In order to evaluate the elastic modulus of the fluids, ultrasonic pulse velocities were measured with an ultrasonic test using transducers of 5MHz and 2.25MHz. The ultrasonic signals were only available with a transducer of 2.25 MHz at fluid concentrations of 5 mg/ml and lower. In the case of applying transducers over 2.25 MHz and concentrations over 5 mg/ml to the fluids, it was impossible to observe effective ultrasonic signals due to an excessive scattering of the pulses by the dispersed particles. Elastic moduli of the magnetorheological fluids were 5.44 GPa and 6.13 GPa with concentrations of 25 mg/ml and 50 mg/ml, respectively; these values were higher by 40% than the values of 4.04 GPa and 4.28 GPa of ferromagnetic fluids at the same concentrations. As for the effect of an external magnetic field on these dilute fluids, the ultrasonic signals were positioned in a very similar way, which was probably due to insufficient arrangement of the particles even though the reflection energy of the ultrasonic waves apparently increased.

자색고구마 스펀지케이크의 저장기간 변화에 따른 품질 특성

김종희,이근종,Kim, Jong-Hee,Lee, Kun Jong 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.4

The quality and characteristics of purple sweet potato sponge cake were studied with the addition of different proportions of purple sweet potato powder depending on storage period The pHs, heights, and weights of doughs were in the ranges of 6.3~6.5, 4.8~4.4 cm and 397~418 g, respectively. The sponge cake groups with the addition of different proportions of purple sweet potato powder showed significantly different characteristics in hardness, adhesiveness, cohesiveness, gumminess, and chewiness, according to texture profile analysis. The difference in colors of sponge cakes with addition with purple sweet potato revealed that L-value and b-value were significantly reduced but a-value especially increased according to the density. Using scanning electron microscopy (SEM), it was confirmed that the stoma size of purple sweet potato sponge cake become smaller and the stoma wall became thicker in proportion to the contents of purple sweet potato powder, which could result in an increased level of water content after a long period pf storage. According with the observations, water content remarkably increased after 4~6 days of storage and the ability to keep water content seemed to contribute to extention the shef-life of sponge cakes. In sensory evaluation, sponge cakes with high contents of purple sweet potato were preferred and cakes with the addition of 25% and 30% purple sweet potato powder was most preferred. It was expected that the shelf-life of purple sweet potato sponge cake was 4 days under the normal temperature.

연료극 지지체식 평관형 고체산화물 연료전지 특성 연구

김종희,송락현,Kim Jong-Hee,Song Rak-Hyun 한국전기화학회 2004 한국전기화학회지 Vol.7 No.2

Anode-supported flat tubular solid oxide fuel cell (SOFC) was investigated to increase the cell power density. The anode-supported flat tube was fabricated by extrusion process. The porosity and pore size of Ni/YSZ ($8mol\%$ yttria-stabilized zirconia) cermet anode were $50.6\%\;and\;0.23{\mu}m$, respectively. The Ni particles in the anode were distributed uniformly and connected well to each other particles in the cermet anode. YSZ electrolyte layer and multilayered cathode composed of $LSM(La_{0.85}Sr_{0.15})_{0.9}MnO_3)/YSZ$ composite, LSM, and $LSCF(La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.7}O_3)$ were coated onto the anode substrate by slurry dip coating, subsequently. The anode-supported flat tubular cell showed a performance of $300mW/cm^2 (0.6V,\; 500 mA/cm^2)\;at\;500^{\circ}C$. The electrochemical characteristics of the flat tubular cell were examined by ac impedance method and the humidified fuel enhanced the cell performance. Areal specific resistance of the LSM-coated SUS430 by slurry dipping process as metallic interconnect was $148m{\Omega}cm^2\;at\;750^{\circ}C$ and then decreased to $148m{\Omega}cm^2$ after 450hr. On the other hand, the LSM-coated Fecralloy by slurry dipping process showed a high area specific resistance. 연료극 지지체 평관형 고체산화물 연료전지(SOFC)의 셀 전력밀도를 증가시키기 위하여 압출법에 의하여 제조하고 그 특성을 연구하였다. 연료극 지지체로써 Ni/YSZ($8mol\%$ yttria stabilized zirconia) cermet는 기공율 $50.6\%,\;0.23{\mu}m$의 기공크기를 나타내었다. 지지체에서의 Ni의 분포는 균일하였으며 전자전도 경로로써의 Ni의 연결성은 양호하였다. 지지체에 YSZ전해질과 복합 공기극층인 $LSM((La_{0.85}Sr_{0.15})_{0.9}MnO_3)/YSZ$ 복합층, LSM, LSCF $(La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_3)$층이 슬러리 디핑법에 의하여 코팅 및 소결된 연료극 지지체식 평관형 고체산화물 연료전지 단위전지의 성능은 $800^{\circ}C$에서 $300mW/cm^2(0.6V,\;500mA/cm^2)$의 성능을 나타내었다. 임피던스 분석에 의하여 평관형 셀의 전기화학적 분극저항을 평가하고 연료측의 가습에 따라 분극저항이 감소되어 성능이 향상됨을 알 수 있었다 슬러리 디핑법으로 LSM이 코팅된 SUS430 금속연결재를 $Ar+10\%\;H_2$에서 소결하였으며, $750^{\circ}C$에서 면저항의 측정할 결과, 초기에는 $148m{\Omega}cm^2$를 나타내었으며, 450시간 경과 후에 $43m{\Omega}cm^2$의 낮은 면저항을 유지하였다. 반면에 동일한 조건으로 LSM이 코팅된 Fecralloy는 높은 면저항을 나타내었다.

흰쥐에서 개량식 고추장과 발효 밀쌀의 항비만 효과

김종희,임양이,Kim, Jong-Hee,Lim, Yaung-Iee 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.4

The antiobesity effect of commercial kochujang and fermented wheat grains in Sprague-Dawley (SD) rats was studied. The experiment was consisted of 6 groups. Normal, high fat diet (HFD), HFD+raw wheat grains, HFD+first fermented wheat grains (FFWG, with Aspergillus oryzae) HFD+final fermented wheat grains (FiFWG, fermented more for 30~40 days), and HFD+ commercial kochujang. The results showed that final body weight, weight gain, food efficiency ratio, and adipose tissue weight were markedly decreased by the commercial kochujang and the fermented wheat grains, whereas non-fermented raw wheat grains had no such effect. Lipid contents such as total lipid, total triglyceride and total cholesterol decreased in the serum and organs of liver and adipose tissues by the commercial kochujang and the fermented wheat grains as well. These results also indicated that fermented wheat grains exhibited more suppressive effects on high fat induced-obesity than raw wheat grains. Increased fermentation time and adding the red pepper powder resulted in increased the anti-obesity effect. Especially, commercial kochujang showed higher antiobestic effects than fermented wheat grains. These in vivo findings suggested that well-fermented end products of the wheat grains and red pepper powder in kochujang could be useful in the prevention of obesity.

토마토 MABC 육종에서 GBS(genotyping-by-sequencing)에 의한 RPG(recurrent parent genome) 회복률 분석

김종희,정유진,서훈교,김명권,노일섭,강권규,Kim, Jong Hee,Jung, Yu Jin,Seo, Hoon Kyo,Kim, Myong-Kwon,Nou, Ill-Sup,Kang, Kwon Kyoo The Korean Society of Plant Biotechnology 2019 식물생명공학회지 Vol.46 No.3

Marker-assisted backcrossing (MABC)은 marker-assisted selection (MAS)와 함께 다양한 작물에서 여교배 초기세대에서 반복친 게놈의 회복률이 높은 개체선발을 위한 분자육종 기술로 매우 유용하게 사용하고 있다. 본 연구에서는 토마토 MABC 육종 프로그램의 일환으로 저장성이 강한 rin유전자를 주)토마토연구소에서 육성한 핑크계 엘리트 토마토계통에 도입하고자 수행하였다. foreground 선발은 RIN SCAR 분자 마커를 이용하여 100개 $BC_1F_1$ 식물체에서 Rr 유전자형 가진 42개체를 선발하였다. 그리고 이를 이용하여 GBS 분석을 이용하여 background 선발을 하였다. 총 3,086개 SNP를 대상으로 반복친 HK13-1151과 게놈 회복률을 조사한 결과, 56.7%에서 84.5%를 보여 평균 70.5%로 나타났다. 이 중 87.2%을 보인 $BC_1F_1$개체를 이용하여 192개 $BC_2F_1$ 식물체를 육성하여 foreground 선발을 하였다. 선발된 102개 중 88개 식물체를 이용하여 GBS 분석을 수행한 결과 4,868개의 다형 SNP 마커를 얻었으며, 이를 이용하여 RPG 회복률을 조사하였다. $BC_2F_1$ 식물체들에서 HK13-1151 반복친 게놈과 87.8%에서 97.8% 유사하였다. 본 연구에서 $BC_2F_1$ 식물 중 RPG 회복률이 97.8%인 5-1 개체는 반복친인 HK13-1151과 과일특성에서 매우 유사하였다. 따라서 선발된 5-1 개체는 $BC_2F_2$ 세대를 육성하여 계통화 하고자 한다. 본 연구를 통해 MABC는 전통 여교배 육종에 비해 육종연한을 획기적으로 줄일 수 있으며, 원하는 육종모델을 완수할 수 있는 첨단육종 기술로 평가 할 수 있다. Marker-assisted backcrossing (MABC) is useful for selecting an offspring with a highly recovered genetic background for a recurrent parent at early generation to various crops. Moreover, marker-assisted backcrossing (MABC) along with marker-assisted selection (MAS) contributes immensely to overcome the main limitation of the conventional breeding and it accelerates recurrent parent genome (RPG) recovery. In this study, we were employed to incorporate rin gene(s) from the donor parent T13-1084, into the genetic background of HK13-1151, a popular high-yielding tomato elite inbred line that is a pink color fruit, in order to develop a rin HK13-1084 improved line. The recurrent parent genome recovery was analyzed in early generations of backcrossing using SNP markers obtained from genotyping-by-sequencing analysis. From the $BC_1F_1$ and $BC_2F_1$ plants, 3,086 and 4868 polymorphic SNP markers were obtained via GBS analysis, respectively. These markers were present in all twelve chromosomes. The background analysis revealed that the extent of RPG recovery ranged from 56.7% to 84.5% and from 87.8% to 97.8% in $BC_1F_1$ and $BC_2F_1$ generations, respectively. In this study, No 5-1 with 97.8% RPG recovery rate among $BC_2F_1$ plants was similar to HK13-1151 strain in the fruit shape. Therefore, the selected plants were fixed in $BC_2F_2$ generation through selfing. MAS allowed identification of the plants that are more similar to the recurrent parent for the loci evaluated in the backcross generations. MABC can greatly reduce breeding time as compared to the conventional backcross breeding. For instance, MABC approach greatly shortened breeding time in tomato.

직접 교수 모형에 기반한 체육과 ICT활용 교수 학습 과정안 개발 및 적용

김종희,이재무,Kim, Jong-Hee,Lee, Jae-Mu 한국정보교육학회 2005 정보교육학회논문지 Vol.9 No.3

The goal of this research is to prove the efficiency of direct instruction by developing and applying an ICT teaching and learning course for physical education based on a direct instruction model. The curriculum for physical education requires the instructors example and feedback, and sometimes classes may be difficult to conduct due to reasons such as weather conditions. Also, in actual learning, the application of a learning model is inadequate. In these cases, using an ICT teaching and learning course, experts can show examples instead. The learners are provided with individual and suitable feedback and can make it practical for them by slowing down motions, sectional motion learning, and repetitive learning. It can also enhance the sharing of the instructors teaching and learning methods. Therefore, this research recomposed the commonly used direct teaching and learning methods in physical education in order to make it suitable for ICT utilized lessons. It was recomposed in a procedural model and each level was explicated, and in order to materialize this, an ICT teaching and learning course was developed. This was then applied to a Fifth grade class, and its learning effects were analyzed.

자동차 부품용 SGAPH440 소재의 MAG 및 LASER 용접특성 평가

김종희(Jong-Hee Kim),방한서(Han-Sur Bang),방희선(Hee-Seon Bang) 대한용접·접합학회 2015 대한용접학회 특별강연 및 학술발표대회 개요집 Vol.2015 No.11

칼빈의 예정론에 나타난 실천적 삼단논법

김종희(Jong Hee Kim) 한국기독교학회 2001 한국기독교신학논총 Vol.21 No.-

The study on the relation between Calvin and syllogismus practicus which is a logical construction used by the Reformed in order to establish the certitudo electionis in and for and individual has been made from their point, bringing about different results. This article, however, analysing their opinions, established the relation rightly on the Calvin`s point. As a result we could prove that there is syllogismus practices in Calvin when we followed its definition of Turretin which is not related with conduct but with faith. For Calvin the certainty is related not with conduct but with faith. So in seeking the certainty of our election, we may cling to those latter signs which are sure attestations of it and are epitomized by faith; we recognize through faith that we are elected. In other words, the basis of the certainty of our election is Christ and it is possible by the Holy Spirit through believing that we are engrafted to Christ for us to be convinced of it. Here the work of Christ and that of the Holy Spirit can not be separated. In this meaning we can say that there is syllogismus practicus in Calvin`s doctrine of predestination.

세외수입(稅外收入)의 현황(現況)과 증대방안(增大方案)에 관한 연구(硏究)

김종희(Jong Hee Kim) 한국지방재정학회 1996 지방재정학보 Vol.1 No.-

지방재정수요는 날로 팽창하고 있다. 지역주민의 보다 나은 서비스 요구와 민선자치단체장 의 공약사업이 증가하고 있기 때문이다. 그러나 그에 필요한 재원은 한정되어 있다. 지방세나 국고지원에 의한 수입의 증대에는 여러 가지 제약이 있어 자치단체의 독자적인 노력만으로는 불가능하다. 최선의 방법은 세외수입의 확충이라고 할 수 있다. 본고에서는 층남 5개 시의 세외수입 현황을 비교 분석해 봄으로써 세외수입의 증대에 관한 관심을 제고하는 동시에 어느 부문에서 세외수입을 늘리는 것이 바람직한가 하는 것을 모색한다. 세외수입 중에서도 실질적 세외수입에 해당하는 일반회계의 경상적 수입과 특별회계의 사업수입을 중심으로 고찰한다. 성격이 같은 세입원임에도 자치단체에 따라 수입에서 큰 차이가 나타난 항목이 많다. 그러 한 차이에 대한 타당한 이유가 없다면 그에 대한 검토가 필요하다고 하겠다. 지방자치단체가 기타특별회계로 운영하고 있는 것 중에서 기업적 성격을 띠고 있는 것은 지방공사·공단화하는 조치가 필요하다. 그리고 사용료와 수수료의 요율을 합리적으로 조정 하기 위해서는 먼저 수많은 사용료와 수수료를 분류하여 각각 적합한 원가보상률을 적용해야 한다. 사용료와 수수료 중에는 주민생활에 필수적이면서도 비채산적인 것이 있으므로 이에 대해서는 최소화해야 할 것이다. 우리나라의 지방자치단체의 실정을 감안할 때 기초자치단체에서도 경영수익사업을 개발하는 것이 필요하다고 본다. 자치단체에 따라서는 개발가능한 자연자원과 공유재산을 보유하고 있기 때문이다. 민간부문의 영역을 크게 잠식하지 않는 범위 내에서 이를 잘 활용한다면 세외수입의 증대에 많은 도움이 되리라고 본다. 특히 층남 5개 시에는 천연자원과 관광자원이 많으므로 이의 적극적인 활용을 세외수입의 증대방안으로 제시한다. This paper deals with control system structure and environments for duct cleaning. In the proposed system, a hierarchial control structure that consists of a master and axis controller is adopted to gurantee the fast motion and future extenstion of the robot. Also, new path tracking algorithm based on smooth landing curve is applied to the robot in order to provided a efficient path tracking performance in narrow area such as internal space of air ducts.

칼빈의 섭리론과 예정론의 관계

김종희 ( Kim Jong Hee ) 한국복음주의신학회 2016 성경과신학 Vol.80 No.-

본 논문의 목적은 많은 칼빈 연구가들이 밀접성은 인정할지라도 아직 구체적으로 밝혀내지 못한 칼빈의 섭리론과 예정론의 관계를 밝혀내는 것이다. 칼빈의 섭리론과 예정론의 관계를 말하기 어려운 점은 두 교리의 발전사에서 기인한다. 예정과 섭리의 관계는 칼빈의 저서 안에서 나타나는 두 주제의 배치 양상에 따라 1536년, 1539년~1558년, 1559년의 3단계로 구별해 볼수 있다. 첫째 단계에서 섭리는 주로 창조와 연관하여 진술되고, 예정은 교회와 연관하여 진술되었다. 두 번째 단계에서는 이와 달리 섭리와 예정을 함께 독립된 항이나 저서에서 다루었다. 세 번째 단계는 1559년 『최종판 기독교 강요』에서 발견할 수 있는데, 섭리는 Ⅰ권 창조 부분에서 다루어지고, 예정은 Ⅲ권 구원 부분에서 다루어지고 있다. 이러한 두 교리의 관계사를 보면, 칼빈이 1536년부터 1559년까지 계속해서 섭리를 세 가지로 분류하고 있다는 점이 드러난다. 그러므로 칼빈이 섭리를 보편섭리와 특별섭리의 두 종류로 본다는 입장보다는 보편섭리, 특별섭리, 구원섭리 등 세 가지로 말하고 있다는 입장이 더 타당성이 있어 보인다. 구원섭리와 예정의 연관성은 섭리가 예정의 궁극적 원인이며, 섭리가 예정을 시행한다는 점에서 확인할 수 있다. 예정의 궁극적 원인으로서의 섭리는 하나님의 의지와 동의어로 쓰이며, 예정의 시행에 관계되는 섭리는 말씀의 선포와 성령의 조명에 의한 부르심으로 나타난다. 요컨대, 보편섭리와 특별섭리가 창조를 규정하고 유지하고 보호하는 것처럼, 구원섭리는 예정을 규정하고 시행하여 구원에 이르게 한다. 따라서 예정은 구원섭리로서 섭리의 일부분이며, 칼빈의 섭리론과 예정론에서 창조와 구원 과정을 모두 지배하는 것은 섭리라고 말할 수 있다. This article explores Calvin’s understanding of providence and predestination which most researchers agree with the two themes are relevant but can not say concretely how they are. It is difficult to say how they are related and it is caused by the history of their development. The relation between providence and predestination can be divided into three steps of 1536, 1539~1558, and 1559 in Calvin``s writings. Providence is related to creation and predestination to church in the first step. In the second step, Calvin treated them together in independent article or writings. In the third step in Institutes of the Christian Religion, 1559 edition, Calvin treated providence in vol.Ⅰand predestination in vol. Ⅲ. Through this course of study, it is revealed that Calvin classified providence into three types. Therefore, it seems more right that Calvin classified providence into three types, universal, special and redemptive than that he did into two types, universal and special providence. The providence is final cause of predestination and it carries predestination into effect. The will of God and the providence as the final cause of predestination is a synonym, and the providence carries predestination into effect through calling by proclaiming the Word and illuminating of the Holy Spirit. In short, redemptive providence ordains predestination and carries it into effect for redemption, as universal and special providence ordain, keep and look after creatures. Accordingly, We can say that predestination as redemptive providence is part of providence, and it is providence that rules all the creation and redemption process in Calvin’s doctrine of providence and predestination.