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.

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.

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.

경비업자의 채무불이행과 불법행위에 따른 손해배상책임에 관한 연구

김종희(Kim, Jong-Hee),양영식(Yang, Young-Sik) 한국경호경비학회 2021 시큐리티연구 Vol.- No.66

최근 경비 보안에 관한 중요성이 커진 가운데 민간경비산업은 빠르게 성장하고 있다. 경찰청 통계자료에 따르면 2020년 4월 기준 전국 경비업체는 약 4,400개, 경비업 종사자 수는 약 17만명으로 추산되고 있다. 이처럼 경비업이 우리 사회의 안정된 사회 실현과 치안 강화 측면의 경찰 기능을 담당하는 중요한 역할로 자리매김하고 있다. 그런데도 경비업 관련 제도와 규제는 기존 방식의 틀에서 벗어나지 못하는 한계가 존재하고 있다. 특히 경비업 관련 법률은 ｢경비업법｣을 기초로 개별법에 의존하고 있어 경비계약과 관련된 분쟁은 주로 일반사법의 법리에 의하여 해결하고 있다. 현재 경비업은 경비업무의 전부 또는 일부를 도급받아 행하는 영업으로 일반적인 도급계약에 의존하고 있으나, 최근 경비용역계약이 일정한 사무 처리의 위탁계약으로 진행됨에 따라 이와 관련한 책임과 손해에 관한 분쟁이 제기되고 있다. 경비업체는 경비계약에 따른 경비업무를 수행하면서 관리소홀 및 하자가 발생할 경우 일정한 손해배상책임을 부담하게 되는데, 여기에는 경비용역 계약상의 채무를 제대로 이행하지 못하여 책임을 지게 되는 채무불이행 책임과 불법행위에 따른 손해배상책임을 지게 된다. 본 연구는 이러한 경비업 관련 법적 분쟁에 따른 손해배상책임의 범위를 명확히 하고자 경비계약을 체계적으로 정리하여 점진적으로 증가할 것으로 예상하는 분쟁을 해결하기 위한 법·제도적 개선안을 결론으로 제시하고자 한다. The private security industry is growing rapidly amid the growing importance of security in recent years. According to statistics from the National Police Agency, as of April 2020, there were about 4,400 security companies and the number of security workers was estimated to be about 170,000. As such, the security industry plays an important role in our society, and the police function in the aspect of realizing a stable society and strengthening security. Nevertheless, there is a limit to the system and regulation related to the security industry that cannot deviate from the framework of the existing laws. In particular, the security business-related laws rely on individual laws based on the “Security Business Act”, so disputes related to expense contracts are mainly resolved by the legal principles of general private law. Currently, the security business is a business conducted by subcontracting all or part of the security business and relies on general contracts. In recent years, as the expense service contract proceeds as a consignment contract for certain office processing, disputes have been raised regarding liability and damage. Security companies are liable for certain damages in case of negligence or defects in performing the security work according to the expense contract. This is responsible for the default of the debt and the liability for damages caused by illegal acts, which are liable for failure to properly fulfill the debt under the security service contract. This study clarifies the scope of these security companies liability for damages and proceeds systematically. Therefore, I would like to examine the deficiencies of the law related to the security industry to prevent disputes that are expected to increase gradually in the future, and to suggest improvement measures.

학부 통역교육 실태조사 연구

김종희(Kim Jong-Hee) 대한일어일문학회 2010 일어일문학 Vol.48 No.-

학부과정 한일통번역수업의 운영방안에 관한 연구

김종희(Kim Jong-Hee) 대한일어일문학회 2009 일어일문학 Vol.43 No.-

말뭉치를 활용한 ‘갖다가’ 연구

김종희 ( Kim¸ Jong-hee ) 반교어문학회 2020 泮橋語文硏究 Vol.0 No.56

‘갖다가’는 동사 ‘가지다’와 연결어미 ‘-어가다’의 활용형으로, 문법화의 과정중에 있다. 먼저 ‘갖다가’의 용법을 기능상, 의미상의 차이를 바탕으로 3단계로 나눈 뒤 <세종 말뭉치>와 <연세20세기 한국어 말뭉치>, <새연세말뭉치>에서 추출한 ‘갖다가’의 용례를 해당 단계에 맞추어 분류하였다. 이를 통해 문체별, 어형별, 사용역별로 ‘갖다가’의 쓰임에 차이가 나타난다는 것을 밝혀내었다. 먼저 ‘갖다’와 ‘갖다가’는 준말과 본말로 여겨져 왔지만 서로 다른 기능을 수행한다. ‘갖다’는 후행 동사와 연속동사 구성을 이루어 축자적인 의미를 유지하지만 ‘갖다가’는 선행하는 목적격조사와 함께 담화표지처럼 기능한다. 또 ‘갖다’는 문어적인 표현이지만 ‘갖다가’는 구어적인 표현이다. 구어 담화에서 ‘갖다가’는 다수의 청중을 대상으로 한 발화 상황에서 주로 나타나, 담화의 완급을 조절하고 선행어를 강조하는 화용적 기능을 수행한다. The purpose of this study is to descript the grammatical aspects of ‘kactaka’ and identify the pregmatic role of ‘kactaka’. First, ‘kactaka’ was classified into three items according to their syntactic and semantic roles. Second, extract the examples of ‘kactaka’ from sejong corpus’, ‘20th century yonsei corpus’, and ‘Sea yonsei corpus’. The examples were classified into three items. Through this, this study uncovered the differences between ‘kacta’, which is shortened word form of ‘kactaka’, and ‘kactaka’. ‘kacta’ was used in ‘serial verb’ with the following verb, not losing its original meaning.. In contrast, ‘kackaka’ was used in combination with objective case maker. ‘kackaka’ losed its syntactic features and semantic meaning. and gained new feature as a discourse Marker. Also, ‘kacta’ is used frequently in written corpus. on the other hand, ‘kackaka’ is used frequently in spoken corpus. In spoken language, ‘kackaka’ appeared in a lecture, speech, the discourse with many people. It is a kind of a discouse marker which slows down the conversation.