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      • KCI등재

        Hybridizing Genres and Cultural Ambivalence in Chang-rae Lee`s Native Speaker

        이정화 ( Jung Hwa Lee ) 한국영미문화학회 2009 영미문화 Vol.9 No.3

        This essay examines the thematic continuum between Chang-rae Lee`s reworking of generic conventions of the bildungsroman and the spy novel in Native Speaker. Reading Native Speaker as a novel not only about Asian American inclusion but also about Asian American authoring, I posit that Lee courts the mainstream American reading public by tactfully mixing conventions of the bildungsroman and the spy novel. Appropriating the two genres, Lee enacts a literary equivalent of John Kwang`s political project that privileges heterogeneity and hybridity. The bildungsroman, a representative Asian American literary expression, has tended to articulate Asian American integration into the nation, often subscribing to the `model minority` myth. Native Speaker uses a major staple of the bildungsroman by following how Henry makes sense of his childhood to construct a public identity. Unlike conventional bildungsromans, however, Lee presents Henry`s coming-to-terms with society as something to be undone rather than something to be accomplished by the end of the novel. Native Speaker problematizes successful cultural bildung by describing Henry`s spying as a function of his successful American education. Lee exploits the familiar trope of the inscrutable Asian spy by casting a Korean American spy as his protagonist, but he complicates the old association between the Asian spy and the `yellow peril`; Distinguishing Henry from stereotypical Asian agents as well as conventional spies, Lee opposes the logic behind the `yellow peril` in favor of a principle of hybridity. Appropriating as well as disrupting cultural expectations of Asian Americans and the literary conventions that code such expectations, Lee suggests "a double articulation" (in the Bhabhaian sense) as a viable strategy for Asian American authorship.

      • KCI등재

        디젤차량용 통합연료히터의 저온유동성 성능평가

        이정화,박형원,이웅수,이영재,이보희,윤달환,Lee, Jeong-Hwa,Park, Hyung-Won,Lee, Woong-Su,Lee, Young-Jea,Lee, Bo-Hee,Yoon, Dal-Hwan 한국전기전자학회 2014 전기전자학회논문지 Vol.18 No.1

        본 연구에서는 저온유동성 성능검사 시스템 구현을 통해 디젤 차량용 통합형 연료히터의 성능을 평가한다. 저온 유동성 시험장치에서 $+20{\sim}-30^{\circ}C$ 온도범위에 따라 분리형과 통합형 연료히터 성능을 비교하고, 필터 전후에 따라 유압과 시동시간, 히터의 소모전력을 측정한다. 이때 다양한 종류의 필터면적을 사용함으로써 통합형 연료히터와 분리형을 비교한 결과 시동 시간이 23% 향상되었고, 저온시동성능은 19% 정도 향상된다. It is very important to supply the diesel fuel from fuel tank to combustion chamber in case of cold start procedure. the paraffin hydrocarbons are easily solidified at low fuel temperature and it can be blocking the fuel supply to the high pressure fuel pump. In order to reduce the fuel crystallization (Waxing), it have been used to develop not only cold flow additives but also the proper mounting design of fuel filter. Block heater in the fuel filter assembly have been also contained to improve the cold start and prevent blocking the fuel supply in Common Rail Direct Injection System. we can obtain the fuel pressure drop and fuel flow rate, power consumption of fuel heater to have the cold flow evaluation test with the saperated and composited fuel heater at the low ambient temperature, Due to evaluating cold flow performance of two block heater, we knew that composited package fuel heater was the excellent cold flow performance compared to separated type and obtained the parameters of cold flow.

      • KCI등재

        아방가르드 인종 코미디: 영진 리의 『용비어천가』

        이정화(Jeonghwa Lee) 한국영미어문학회 2013 영미어문학 Vol.- No.106

        The current cross-national, cross racial, and cross cultural environment influences today’s new subjectivity formations. Such newly-created transnational subjects are even difficult to be classified as Asian American, as racial or national borders fall apart. In this context, this paper examines the work of Asian American woman playwright Young Jean Lee’s Songs of the Dragons Flying to Heaven. Songs of the Dragons Flying to Heaven employs frames of both stand-up and sketch comedies and exaggerates the representation of stereotypes against Korean Americans, Koreans, and white male Americans. Laughs generated by Bertolt Brecht’s “alienation effect” and conceptualized with a Sianne Ngai’s litery term, “ugly feeling” constantly lead the cosmopolitan audience to engage with the issues of race, gender, and ethnicity. The main plots of the play are two; one is the Artaud-like theater of cruelty where Korean women and a Korean-American woman show macho behaviors and another is the Brechtian epic theater where a white couple continues to find the meaning of their relationship. The two different plots do not interfere with each plot, but show all the characters try to expose their inner selves to the world and to stand up to a lot of suppression of minorities and of feminity they have experienced so far. Thus, a Young Jean Lee’s new version of racial comedy presents one stage where Koreans, Korean Americans, and white Americans can stand free as transnational.

      • KCI등재

        레몬그라스 분말을 첨가한 머핀의 품질특성 및 항산화 효과

        이정화,김경지,노규아,정강현,윤진아,안정희,Lee, Jeong Wha,Kim, Gyeong-Ji,Rho, Kyu-A,Chung, Kang-Hyun,Yoon, Jin-A,An, Jeung Hee 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.5

        레몬그라스 분말을 첨가한 머핀의 품질특성 및 항산화를 측정하기 위하여 레몬그라스 분말 0%, 1%, 3%, 6%, 9%를 첨가하여 머핀을 제조하였다. 머핀의 높이, 부피 및 비체적은 분말의 첨가량이 증가할수록 감소하였다. 레몬그라스 분말 첨가군의 수분 함량과 점도는 대조군과의 유의적 차이가 나타내지 않았으며, 색도 측정 결과, 명도와 황색도는 레몬그라스의 농도가 증가할수록 유의적으로 감소하였으나, 적색도는 증가하였다. Texture를 측정한 결과, 레몬그라스 분말의 씹힘성은 첨가량이 증가할수록 감소하였다. 관능검사는 색, 향, 맛, 조직감, 기호도를 측정했으며, 그 결과 3% 첨가군에서 가장 높은 관능검사 결과를 보여주었다. 레몬그라스 머핀의 DPPH 라디칼 소거능 측정 결과, 레몬그라스의 농도가 증가함에 따라 유의적으로 항산화 활성이 증가하였으므로, 레몬그라스의 첨가가 머핀의 기능성에 좋은 영향을 나타낼 것으로 사료된다. This study investigated the quality characteristics and antioxidant effect of muffins that were prepared with the following lemongrass-powder concentrations: 0%, 1%, 3%, 6%, and 9%. The lemongrass-powder concentrations were added to the flour during the basic-formulation process, whereby the heights and volumes decreased significantly when the amount of lemongrass powder was increased. As a result of measuring the colors, the lightness and yellowness of the muffins decreased, whereas the redness increased with the increases of the lemongrass-powder concentrations. When the textures of the lemongrass muffins were measured, the chewiness and adhesiveness decreased with the increases of the lemongrass-powder concentrations. When the sensual qualities of the muffins were measured, the colors, flavors, tastes, textures, and overall quality of all of the samples show that the 3% lemongrass-powder concentration revealed the highest sensual-quality indexes. Further, the DPPH and ABTS radical-scavenging activities increased according to the concentration of lemongrass powder, whereby the former increased significantly when the amount of lemongrass powder was increased.

      • SCOPUSKCI등재

        Isolation of Epithelial Like Cells from the Rabbit Myometrium: the Distribution of Creatine Kinase and Plasminogen Activator

        이정화,Lee, Chung-wha,Iyengar, M. Raja The Korean Society of Veterinary Science 1984 大韓獸醫學會誌 Vol.24 No.2

        Cells with an epithelioid morphology were isolated from the rabbit myometrium and were grown in culture. The cells had a doubling time of 53 hours when grown in the presence of 10% fetal calf serum in Basal Eagle's medium with 3mM glutamine. In the presence of estrogen plus insulin, doubling time was reduced to 40 hours. Creatine kinase activity upon reaching confluency was determined to be 0.019 unit per mg protein. Approximately 30% of the activity was extractable only in high ionic strength buffer. Cells also contained plasminogen activator with a specific activity of 140 CTA units per million cells. Creatine kinase was mainly BB form. The cells contained a cross reactive protein against bovine smooth muscle uterine anti-myosin. 가토 자궁 근충에서 분리한 상피세포를 10% 송아지혈청, 3mM glutamine이 함유한 Basal Eagle 배지에서 배양한 결과 세포 성장 시간은 53시간이 소요되었고, estrogen에 insulin을 첨가했을 때는 40시간으로 감소하였다. Creatine kinase 활성 단위는 단백질 mg당 0.019 unit이었다. 활성의 30%가 이온상태가 높은 완충액에서 추출되었고, plasminogen 활성 인자는 세포 백만당 140 CTA unit였다.

      • SCOPUSKCI등재

        원형 탈모증 환자에서의 불안 , 우울 및 정신과적 증상에 관한 연구

        이정화,김유찬,박향준,신용우,이경규 ( Jeong Hwa Lee,You Chan Kim,Hyang Joon Park,Yong Woo Cinn,Kyung Gue Lee ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.5

        Background: Alopecia areata may causesignificant interference in social interaction. Despite the controversy concerning the existence of specific personality exhibited by patients with alopecia areata, psychological and social factors have long been considered important factors that have influence on the course of the disease. Objective : The purpose of this study was to investigate the degree of anxiety, depression and psychological symptoms of patients with alopecia areata and their relationship between psychological factors and clinical characteristics. Methods : Beck Depression Inventory(BDI), State-Trait Anxiety Inventory(STAI) and Symptom Check List-90-Revision(SCL-90-R) were carried out on 20 patients with alopecia areata and 20 controls. Results : 1.According to the age and sex distributions of the patients, the majority of conditions occurred between 20 and 30 years of age(approximately 80%), with the mean age being 28. 10 patients were women and 10 patients were men. 2. For STAI scores, the patient group was higher than the control group, 1) State Anxiety . 49.25+8.01 vs 40.70+6.33(p < 0.05) 2) Trait Anxiety : 46.50 +8.41 vs 39.80=6.49(p < 0.05) 3. For BDI score, the patient group was higher than control group, 14.90+6.89 vs 9.5+5.70(p< 0.05), but there were no significant differences between male patients and female patients. 4. For SCL 90 R scores, the patient group was higher than control group-phobic anxiety, psychoticism, somatization, anxiety, depression, hostility, interpersonal sensitivity, global severity index, positive symptom total, positive symptom distress index(p < 0.05). Conclusion : We suggest there is a relationship between clinical characteristics of alopecia areata and psychological stress. (Korean J Dermatol 1997;35(5): 837-846)

      • SCOPUSSCIEKCI등재

        An Experimental Study on the Effect of Cytoskeletal Changes or Osteoblastic Cell Activities

        이정화,남동석,Lee, Jeong-Hwa,Nahm, Dong-Seok The Korean Association Of Orthodontists 1998 대한치과교정학회지 Vol.28 No.6

        Cytoskeleton은 세포핵과 세포외 기질을 연결하고 있어서 기질에 가해지는 물리적 힘에 의해 cytoskeletal change가 유도되고 이에 의해 세포의 개조활성이 영향을 받는다고 생각되어 왔다. 본 연구는 골모세포 활성에 대한cytoskeletal change의 역할을 규명하기 위한 것으로서, 신생 백서로부터 조골세포양 세포를 분리, 배양하고 네가지 농도의 cytochalasin B(CB) 또는 colchicine(COL)을 3시간 처리하였다. 다시 배양액을 교환하고 24시간 동안 배양하여 prostaglandin $E_2\;(PGE_2)$, interleukin-6(IL-6), tumor necrosis factor-$\alpha$(TNF-$\alpha$) 및 matrix metalloproteinase-1 (MMP-1) 생산을 측정하고 통계적으로 비교하였으며 cytoskeletal protein actin 변화를 관찰하기위하여 면역형광염색하고 형광현미경으로 관찰하여 다음과 같은 결과를 얻었다: 1. CB 처리군에서 $PGE_2$ 생산이 증가되는 경향을 보였고 COL 처리군에서는 약물농도에 비례하여 증가하였다. 2. IL-6 생산은 CB농도 1.0 ${\mu}g/ml$일때를 제외하고 증가되었다. 3. TNF-$\alpha$도 CB 농도가 1.0 ${\mu}g/ml$ 일때를 제외하고 증가하였다. 4. MMP-1 생산은 CB 처리군에서 감소하는 경향을 보이고 COL 처리군에서는 변화되지 않았다. 5. CB처리군에서는 cytoskeletal actin stress fibers가 사라지고 세포모양이 둥글어지는 경향을 보였다. 이상의 결과로 미루어 보아 cytoskeletal rearrangement는 골모세포유사세포의 활성, 특히 $PGE_2$, IL-6, 및 TNF-$\alpha$같은 paracrine/autocrine factor의 생산과 관련있는 것으로 보인다. The cytoskeleton has been shown to form a network, connecting the extracelluar matrix via integrin with the nucleus and the cytoplasmic constituents of the cell. It is therefore assumed that the cytoskeleton may mediate signals generated by perturbations originating in the matrix. The purpose of this study is to examine the effect of cytoskeletal change on osteoblastic cell activities. The author cultured osteoblastic cells obtained from neonatal mouse calvaria. The cells were teated with cytochalasin B(CB) or colchicine (COL) at four concentrations for 3 hours and after another 24 hours the conditioned media was collected and assayed for prostaglandin $E_2\;(PGE_2)$, interleukin-6(IL-6), tumor necrosis factor-$\alpha$ (TNF-$\alpha$) and matrix metalloproteinase-1(MMP-1). In addition, the cytoskeletal protein actin were observed by immuno-fluorescence. The results were as follows: 1. The production of $PGE_2$ showed the tendency to be increased in CB-treated group. $PGE_2$ was increased in COL-treated group dose-dependantly, 2. IL-6 production, in CB-treated group, was increased, except at 1.0 ${\mu}g/ml$. IL-6 was induced in COL-treated group. 3. TNF-$\alpha$ production was increased in CB-treated group, except at 1.0 ${\mu}g/ml$, and in COL-treated group, that was increased. 4. The MMP-1 production was decreased in CB-treated soup and was not changed in COL-treated group, which could be selectively visualized by immunoblotting with monospecific antibody. 5. The cytoskeletal actin stress fibers were disappeared and the cells showed to be rounded in CB-treated group. These results indicated that there are a relationship between the cytoskeletal rearrangements and osteoblastic cell activities, especially in release of paracrine/autocrine factors, such as $PGE_2$, IL-6, and TNF-$\alpha$.

      • SCIESCOPUSKCI등재

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